阅读说明：本技术 往复式电机及其应用和制造方法 (Reciprocating motor and application and manufacturing method thereof ) 是由 罗明 于 2019-10-15 设计创作，主要内容包括：本发明公开一往复式电机及其应用和制造方法,其中所述往复式电机包括一定子组、一转子组以及至少一弹性件,其中所述转子组被可转动地设置于所述定子组并包括一转轴,其中所述弹性件的一内环被紧绕固定于所述转轴而与所述转轴联动,所述弹性件的一外端于所述转轴的转动方向被固定于所述定子组,当所述转轴转动时,所述弹性件被所述转轴联动而产生弹性变形力矩,从而所述转轴被所述弹性件维持于一定的转动行程内进行往复运动。(The invention discloses a reciprocating motor and an application and manufacturing method thereof, wherein the reciprocating motor comprises a stator group, a rotor group and at least one elastic part, wherein the rotor group is rotatably arranged on the stator group and comprises a rotating shaft, an inner ring of the elastic part is tightly wound and fixed on the rotating shaft to be linked with the rotating shaft, one outer end of the elastic part is fixed on the stator group in the rotating direction of the rotating shaft, and when the rotating shaft rotates, the elastic part is linked by the rotating shaft to generate elastic deformation torque, so that the rotating shaft is maintained by the elastic part in a certain rotating stroke to carry out reciprocating motion.)

1. A reciprocating motor, comprising:

a stator group;

a rotor set, wherein the rotor set is rotatably disposed on the stator set and comprises a rotating shaft; and

at least one elastic piece, wherein an inner ring of the elastic piece is tightly wound and fixed on the rotating shaft and linked with the rotating shaft, an outer end of the elastic piece is fixed on the stator set in the rotating direction of the rotating shaft, when the rotating shaft rotates, the elastic piece is linked by the rotating shaft to generate elastic deformation moment, and therefore the rotating shaft is maintained by the elastic piece to perform reciprocating motion within a certain rotating stroke.

2. The reciprocating motor according to claim 1, wherein an initial inner diameter of the inner ring of the elastic member is set to be smaller than a diameter of the rotation shaft, whereby the inner ring can be fastened around the rotation shaft in a press-fit manner.

3. The reciprocating motor according to claim 2, wherein the inner ring is provided in a multi-turn ring-shaped structure.

4. The reciprocating motor according to claim 3, further comprising at least one fixing sleeve, wherein said fixing sleeve is coupled to said inner ring of said elastic member and said rotation shaft to further maintain a state in which said inner ring of said elastic member is fixed to said rotation shaft.

5. The reciprocating motor according to claim 4, wherein the outer end of the elastic member is inserted into the stator pack to form a state in which the outer end of the elastic member is fixed to the stator pack in a direction in which the rotation shaft rotates.

6. The reciprocating motor according to claim 5, wherein the outer end of the elastic member is provided as an outer pin, wherein the stator pack is provided with an insertion hole, wherein the outer pin is inserted into the insertion hole to form a state in which the outer end of the elastic member is fixed to the stator pack.

7. The reciprocating motor according to claim 5, wherein the outer end of the elastic member is provided as an outer ring, wherein the stator pack is provided with a fixing post, wherein the outer ring of the elastic member is inserted into the fixing post to form a state in which the outer end of the elastic member is fixed to the stator pack.

8. The reciprocating motor according to claim 6, wherein said stator assembly includes a housing and a back end cap fitted to said housing, said housing and said back end cap defining a motor cavity therebetween.

9. The reciprocating motor according to claim 8, wherein the insertion hole is provided to the casing.

10. The reciprocating motor according to claim 8, wherein the insertion hole is provided to the rear end cap.

11. The reciprocating motor according to claim 8, wherein said stator assembly further comprises a fixing bracket fixedly coupled to said housing, wherein said insertion hole is provided to said fixing bracket.

12. The reciprocating motor according to claim 7, wherein said stator assembly includes a housing and a back end cap fitted to said housing, said housing and said back end cap defining a motor cavity therebetween.

13. The reciprocating motor according to claim 12, wherein the fixing posts are provided to the casing.

14. The reciprocating motor according to claim 12, wherein the fixing posts are provided to the rear end cap.

15. The reciprocating motor according to claim 12, wherein the stator assembly comprises a fixing bracket fixedly coupled to the casing, wherein the fixing post is provided to the fixing bracket.

16. The reciprocating motor according to any one of claims 8 to 15, wherein the elastic member is fastened to the rotation shaft in a state of being wound around the outside of the motor cavity.

17. The reciprocating motor according to any one of claims 8-10, 12-14, wherein said elastic member is fastened to said rotating shaft in close proximity within said motor cavity.

18. The reciprocating motor according to any one of claims 1 to 15, wherein said elastic member further comprises a middle ring extended between said inner ring and said outer end, wherein said middle ring is provided as a flat coil spring.

19. The reciprocating motor according to any one of claims 1 to 15, wherein the elastic member further comprises a middle ring extended between the inner ring and the outer end, wherein the middle ring is provided as a tower spring.

20. The reciprocating motor according to any one of claims 1 to 15, wherein said elastic member further comprises a middle ring extended between said inner ring and said outer end, wherein said middle ring is provided as a cylindrical spring.

21. The reciprocating motor according to any one of claims 1 to 15, wherein the rotation shaft further comprises a connection post, wherein the connection post is coupled to the rotation shaft and is provided to be capable of limiting movement of the rotation shaft in an extending direction of the connection post, wherein the inner ring of the elastic member is fastened to the connection post to form a state in which the inner ring of the elastic member is coupled to the rotation shaft.

22. The reciprocating motor according to claim 21, wherein the coupling post is provided with a mounting groove, wherein the mounting groove is provided to accommodate the rotation shaft and to be capable of restricting movement of the rotation shaft in an extending direction of the mounting groove.

23. The reciprocating motor according to any one of claims 1 to 15, wherein the reciprocating motor comprises two said elastic members, wherein the rotating shaft has a front end portion and a rear end portion, wherein the two elastic members are respectively provided at the front end portion and the rear end portion of the rotating shaft and are disposed to be symmetrical to each other.

24. The reciprocating motor according to any one of claims 1 to 15, wherein the rotating shaft has a front end portion and a rear end portion opposite to the front end portion, wherein the elastic member is provided to the front end portion of the rotating shaft.

25. The reciprocating motor according to any one of claims 1 to 15, wherein the rotating shaft has a front end portion and a rear end portion opposite to the front end portion, wherein the elastic member is provided to the rear end portion of the rotating shaft.

26. An electric toothbrush, comprising: a sealing member, wherein the sealing member is disposed between the reciprocating motor and the brush head member for sealing an elastic member covering the reciprocating motor. Wherein the seal has an annular bottom portion and a top portion extending from the annular bottom portion, wherein the top portion is configured and adapted to receive the resilient member of the reciprocating motor such that the seal sealingly covers the resilient member.

Technical Field

The invention relates to a reciprocating motor and an application and a manufacturing method thereof, in particular to a reciprocating motor with simple manufacturing process, small volume and stable performance.

Background

The motion direction of most of traditional motors is unidirectional, if the reciprocating motion of traditional motors is to be realized, a mechanical conversion device is usually added or a synchronous motor is adopted to control the traditional motors, the whole structure of the motors is often complicated by the mode, the size of the motors is increased, and the application of the motors is not convenient and the manufacturing cost of the motors is increased.

Therefore, there is a spring motor which changes a moving direction of the motor by using a torque generated by a spring, and since a motor shaft of a conventional motor is difficult to be secondarily processed, specifically, a shape and a size of an existing motor shaft are difficult to be changed, it is difficult to form a state in which the spring is interlocked with the motor shaft in a manner of secondarily processing the motor shaft. Therefore, the spring and the motor shaft are assembled mainly in two ways in the traditional spring motor, one way is to assemble the motor shaft of the spring through other connecting accessories, and the way can cause the problems of high cost and complex assembling process and is not beneficial to the mass production of the spring motor; the other method is to assemble the spring and the motor shaft by welding, but fixing the spring and the motor shaft by welding often affects the performance of the spring motor. Fixing the spring and the motor shaft by welding has the following drawbacks: firstly, the spring is difficult to accurately position in the welding process, and different operators have different welding quality, so that the performance consistency of the spring motor is influenced; secondly, in the welding process, the stability, reliability and consistency of the quality of the spring welding point are difficult to ensure, and the quality problem of uneven welding points is easy to occur, so that the spring is easy to loosen in the using process, and the spring is seriously or even broken, thereby directly causing the failure and the scrapping of the spring motor; thirdly, the physical parameters and the quality of the elastic part are easy to change due to the welding temperature, so that the stability of the output performance of the spring motor is influenced; fourthly, the welding process has high requirements on the technical level and quality of operators, and the manual welding operation requires longer time, so that the production cost of the spring motor is high, and the production efficiency is low. Because the method of welding for fixing the spring and the motor shaft has the defects, the production efficiency of the spring motor is low, the yield is low, large-scale mass production is difficult to realize, and high economic benefit cannot be provided.

Disclosure of Invention

An object of the present invention is to provide a reciprocating motor capable of performing a reciprocating motion, and a method for applying and manufacturing the same.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the reciprocating motor includes an elastic member and a rotating shaft, wherein one end of the elastic member is linked to the rotating shaft and the other end of the elastic member is fixed to the reciprocating motor in a rotating direction of the rotating shaft, and when the rotating shaft rotates, the rotating shaft can be maintained to reciprocate within a certain rotating stroke by a deformation torque of the elastic member.

Another object of the present invention is to provide a reciprocating motor and a method for manufacturing the same, wherein an inner ring of the elastic member is tightly wound and fixed on the rotating shaft to form a state in which the elastic member is linked to the rotating shaft, and an outer end of the elastic member is inserted and fixed to the reciprocating motor to form a state in which the outer end of the elastic member is maintained fixed in a rotating direction of the rotating shaft.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein an initial inner diameter of the inner ring of the elastic member is set to be smaller than a diameter of the rotation shaft, whereby the inner ring of the elastic member can be fastened around the rotation shaft in a press-fit manner.

Another object of the present invention is to provide a reciprocating motor and a method for manufacturing the same, in which an initial inner diameter of the inner ring of the elastic member is set to be smaller than a diameter of the rotating shaft, so that when the inner ring of the elastic member is press-fitted and fixed to the rotating shaft, the inner ring of the elastic member can be tightly wound and fixed to the rotating shaft by using an elastic clamping force of the inner ring of the elastic member, thereby preventing the inner ring of the elastic member from rotating along the rotating shaft when the rotating shaft rotates, and further ensuring performance stability of the reciprocating motor.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the inner ring of the elastic member is directly press-fitted and fixed to the rotating shaft, thereby making the overall structure of the reciprocating motor compact and ensuring the performance stability of the reciprocating motor.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the inner ring of the elastic member is configured as a multi-turn structure, so that when the inner ring of the elastic member is press-fitted and fixed to the rotating shaft, the multi-turn inner ring can increase the contact area between the inner ring and the rotating shaft, thereby increasing the elastic clamping force of the inner ring to the rotating shaft to prevent the inner ring from rotating along the rotating shaft when the rotating shaft rotates.

Another object of the present invention is to provide a reciprocating motor and a method for manufacturing the same, wherein the reciprocating motor further comprises a fixing sleeve, wherein the fixing sleeve is sleeved on the inner ring of the elastic member and the rotating shaft to further maintain the stability of the inner ring of the elastic member being linked to the rotating shaft.

Another object of the present invention is to provide a reciprocating motor and a method for manufacturing the same, in which the inner ring of the elastic member is fixed to the rotating shaft by means of mechanical pressing, so as to prevent the difference of manual operations and the influence of welding on the performance of the reciprocating motor, thereby maintaining the performance consistency of the reciprocating motor.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the inner ring of the elastic member is fixed to the rotating shaft by means of mechanical pressing, which avoids the disadvantages of long time consumption and low production efficiency of manual operation, thereby facilitating mass production of the reciprocating motor.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the reciprocating motor further includes a stator set, wherein the outer end of the elastic member is inserted into the stator set to form a state in which the elastic member is fixed to the reciprocating motor in the rotation direction of the rotating shaft, thereby preventing the performance of the reciprocating motor from being affected by a welding manner.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the inner ring of the elastic member is fixed to the rotating shaft by means of mechanical pressing, and the outer end of the elastic member and the stator assembly are fixedly connected in an insertion manner, so that a complicated operation of manual welding is avoided, thereby providing a manufacturing method of the reciprocating motor which is convenient and fast to install.

Another object of the present invention is to provide a reciprocating motor, and an application and manufacturing method thereof, wherein the elastic member is disposed in a radial space of the stator assembly and a space extending in a length direction of the rotation shaft, so that the disposition of the elastic member does not increase the overall volume of the reciprocating motor, thereby providing the reciprocating motor having a smaller volume.

Another object of the present invention is to provide a reciprocating motor and a method for manufacturing and using the same, wherein the stator assembly includes a motor cavity, wherein the elastic member can be disposed outside the motor cavity of the reciprocating motor, thereby preventing the elastic member from interfering with an outgoing line of the reciprocating motor in a spatial layout.

It is another object of the present invention to provide a reciprocating motor, and an application and manufacturing method thereof, in which the elastic member can be installed outside the motor cavity of the reciprocating motor, thereby facilitating maintenance to extend the service life of the reciprocating motor.

Another object of the present invention is to provide a reciprocating motor and application and manufacturing method thereof, by which the elastic member can be directly assembled on a conventional rotating electric machine to facilitate the practical production of the reciprocating motor.

To achieve at least one of the above objects, the present invention provides a reciprocating motor including: a stator group; a rotor set, wherein the rotor set is rotatably disposed on the stator set and comprises a rotating shaft; and at least one elastic piece, wherein an inner ring of the elastic piece is tightly wound and fixed on the rotating shaft and is linked with the rotating shaft, an outer end of the elastic piece is fixed on the stator set in the rotating direction of the rotating shaft, and when the rotating shaft rotates, the elastic piece is linked by the rotating shaft to generate elastic deformation moment, so that the rotating shaft is maintained by the elastic piece to perform reciprocating motion within a certain rotating stroke.

In an embodiment of the present invention, an initial inner diameter of the inner ring of the elastic member is set to be smaller than a diameter of the rotating shaft, so that the inner ring can be tightly wound and fixed on the rotating shaft in a press-fit manner.

In an embodiment of the present invention, the inner ring is configured as a multi-turn ring structure.

In an embodiment of the present invention, the reciprocating motor further includes at least one fixing sleeve, wherein the fixing sleeve is sleeved on the inner ring of the elastic member and the rotating shaft to further maintain a state that the inner ring of the elastic member is fixed on the rotating shaft.

In an embodiment of the invention, the outer end of the elastic element is inserted into the stator set to form a state that the outer end of the elastic element is fixed to the stator set in a direction in which the rotating shaft rotates.

In an embodiment of the present invention, the outer end of the elastic member is configured as an outer pin, wherein the stator assembly is configured with an insertion hole, wherein the outer pin is inserted into the insertion hole to form a state that the outer end of the elastic member is fixed to the stator assembly.

In an embodiment of the present invention, the outer end of the elastic element is configured as an outer ring, wherein the stator assembly is configured with a fixing post, wherein the outer ring of the elastic element is inserted into the fixing post to form a state that the outer end of the elastic element is fixed to the stator assembly.

In an embodiment of the present invention, the stator assembly includes a casing and a rear end cover adapted to the casing, and a motor cavity is formed between the casing and the rear end cover.

In an embodiment of the invention, the jack is disposed in the housing. Wherein the receptacle is disposed in the rear end cap.

In an embodiment of the invention, the stator set further includes a fixing frame fixedly connected to the housing, wherein the insertion hole is disposed in the fixing frame.

In an embodiment of the invention, the fixing column is disposed on the housing.

In an embodiment of the invention, the fixing column is disposed on the rear end cover.

In an embodiment of the invention, the stator set includes a fixing frame fixedly connected to the casing, wherein the fixing column is disposed on the fixing frame.

In an embodiment of the present invention, the elastic member is fastened to the rotating shaft outside the motor cavity.

In an embodiment of the present invention, the elastic member is fastened to the rotating shaft within the motor cavity.

In an embodiment of the present invention, the elastic member further includes a middle ring extending between the inner ring and the outer end, wherein the middle ring is configured as a planar coil spring.

In an embodiment of the present invention, the elastic member further includes a middle ring extending between the inner ring and the outer end, wherein the middle ring is configured as a tower spring.

In an embodiment of the present invention, the elastic member further includes a middle ring extending between the inner ring and the outer end, wherein the middle ring is configured as a cylindrical spring.

In an embodiment of the present invention, the rotating shaft further includes a connecting post, wherein the connecting post is sleeved on the rotating shaft and configured to limit movement of the rotating shaft along an extending direction of the connecting post, wherein the inner ring of the elastic member is tightly wound around the connecting post to form a state in which the inner ring of the elastic member is linked to the rotating shaft.

In an embodiment of the present invention, the connecting column is provided with a mounting groove, wherein the mounting groove is configured to accommodate the rotating shaft and can limit the movement of the rotating shaft in the extending direction of the mounting groove.

In an embodiment of the present invention, wherein the reciprocating motor includes two elastic members, wherein the rotating shaft has a front end portion and a rear end portion, and wherein the two elastic members are respectively disposed at the front end portion and the rear end portion of the rotating shaft and are disposed to be symmetrical to each other.

In an embodiment of the present invention, the rotating shaft has a front end portion and a rear end portion opposite to the front end portion, wherein the elastic member is disposed at the front end portion of the rotating shaft.

In an embodiment of the present invention, the rotating shaft has a front end and a rear end opposite to the front end, wherein the elastic member is disposed at the rear end of the rotating shaft.

The present invention also provides in another aspect an electric toothbrush comprising: a power supply device; the reciprocating motor of any one of the above, wherein said reciprocating motor is electrically connected to said power supply; and a brush head piece, wherein the brush head piece is linked with the reciprocating motor, and when the reciprocating motor is supplied with electric energy by the power supply device to perform reciprocating motion, the brush head piece is driven by the reciprocating motor in a linkage manner. Wherein the electric toothbrush further comprises a sealing member, wherein the sealing member is disposed between the reciprocating motor and the head member for sealing a resilient member covering the reciprocating motor.

In an embodiment of the invention, wherein the sealing member has an annular bottom portion and a top portion extending from the annular bottom portion, wherein the top portion is configured and adapted to receive the resilient member of the reciprocating motor such that the sealing member sealingly covers the resilient member. Wherein the top portion is provided with a through hole, wherein the through hole is configured to be penetrated by a rotating shaft of the reciprocating motor so as to form a linkage state of the brush head piece and the rotating shaft. Further comprising a control unit electrically connected to said power supply means and a switch assembly operatively connected to said control unit, wherein the control unit is arranged to control the current output of said power supply means to said reciprocating motor in response to a driven signal from said switch assembly.

The present invention also provides in another aspect a method of manufacturing a reciprocating motor including a stator group and a rotor group rotatably provided to the stator group, comprising the steps of: (a) pressing an inner ring of an elastic piece on a rotating shaft of the rotor set to form a state that the inner ring of the elastic piece is linked with the rotating shaft; and (b) fixing an outer end of the elastic member to the stator assembly in a rotation direction of the rotating shaft.

In an embodiment of the present invention, an initial inner diameter of the inner ring of the elastic member is set to be smaller than a diameter of the rotating shaft, so that the inner ring can be tightly wound and fixed on the rotating shaft in a press-fit manner. Wherein the step (a) further comprises the steps of: (a1) the inner ring fixedly sleeved on the elastic part and the rotating shaft are sleeved to further fix the inner ring of the elastic part and the rotating shaft.

In an embodiment of the present invention, wherein the step (a) further comprises the steps of: (a1) a connecting post is sleeved on the rotating shaft; (a2) pressing the inner ring of the elastic piece on the connecting column to form a state that the elastic piece is linked with the rotating shaft; and (a3) sleeving a fixed sleeve on the inner ring and the connecting column.

In an embodiment of the present invention, wherein the outer end of the elastic member is configured as an outer pin, wherein the step (b) further comprises the steps of: (b1) inserting the outer pin of the elastic element into an insertion hole of the stator set.

In an embodiment of the present invention, wherein the outer end of the elastic member is provided as an outer ring, wherein the step (b) further comprises the steps of: (b1) inserting the outer ring of the elastic piece into a fixing column of the stator set.

In an embodiment of the present invention, wherein the method of manufacturing the reciprocating motor further comprises the steps of:

(c) pressing an inner ring of the second elastic piece on the other end of the rotating shaft; and

(d) and fixing an outer end of the second elastic element to the stator set.

In an embodiment of the present invention, wherein the step (c) further comprises the steps of: (c1) the inner ring and the rotating shaft are sleeved with another fixing sleeve on the second elastic part. Wherein the step (c) further comprises the steps of:

(c1) another connecting column is sleeved at the other end of the rotating shaft; (c2) pressing the inner ring of the second elastic piece on the connecting column; and (c3) another inner ring fixedly sleeved on the second elastic element is sleeved on the connecting column.

In an embodiment of the present invention, wherein the outer end of the second elastic member is configured as an outer pin, wherein step (d) further comprises the steps of: (d1) inserting the outer pin of the second elastic element into an insertion hole of the stator set.

In an embodiment of the present invention, wherein the outer end of the second elastic member is configured as an outer ring, wherein step (d) further comprises the steps of: (d1) inserting the outer ring of the second elastic element into a fixing column of the stator set.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

Drawings

Fig. 1 is a perspective view of the reciprocating motor according to a first preferred embodiment of the present invention.

Fig. 2 is an exploded view of the reciprocating motor according to the above preferred embodiment of the present invention.

Fig. 3 is a schematic sectional view of the reciprocating motor according to the above preferred embodiment of the present invention.

Fig. 4 is a schematic sectional view of the reciprocating motor according to the first modified embodiment of the above preferred embodiment of the present invention.

Fig. 5 is a perspective view of the reciprocating motor according to a second variation of the above preferred embodiment of the present invention.

Fig. 6 is a schematic sectional view of the reciprocating motor according to the second variation of the above preferred embodiment of the present invention.

Fig. 7 is a schematic sectional view of the reciprocating motor according to the third modified embodiment of the above preferred embodiment of the present invention.

Fig. 8 is a schematic sectional view of the reciprocating motor according to a fourth modified embodiment of the above preferred embodiment of the present invention.

Fig. 9 is a schematic sectional view of the reciprocating motor according to the fifth modified embodiment of the above preferred embodiment of the present invention.

Fig. 10 is a schematic sectional view of the reciprocating motor according to a sixth variation of the above preferred embodiment of the present invention.

Fig. 11 is a schematic sectional view of the reciprocating motor according to a seventh variation of the above preferred embodiment of the present invention.

Fig. 12 is a perspective view of the reciprocating motor according to the second preferred embodiment of the present invention.

Fig. 13 is an exploded view of the reciprocating motor according to the above preferred embodiment of the present invention.

Fig. 14 is a schematic sectional view of the reciprocating motor according to the above preferred embodiment of the present invention.

Fig. 15 is a schematic sectional view of the reciprocating motor according to the first modified embodiment of the above preferred embodiment of the present invention.

Fig. 16 is a perspective view of the reciprocating motor according to the second modified embodiment of the above preferred embodiment of the present invention.

Fig. 17 is a schematic sectional view of the reciprocating motor according to the second variation of the above preferred embodiment of the present invention.

Fig. 18 is a schematic sectional view of the reciprocating motor according to the third modified embodiment of the above preferred embodiment of the present invention.

Fig. 19 is a perspective view of the reciprocating motor according to a fourth modified embodiment of the above-described preferred embodiment of the present invention.

Fig. 20 is an exploded view of the reciprocating motor according to a fourth modified embodiment of the above-described preferred embodiment of the present invention.

Fig. 21 is a schematic sectional view of the reciprocating motor according to the fourth modified embodiment of the above preferred embodiment of the present invention.

Fig. 22 is a schematic sectional view of the reciprocating motor in accordance with the fifth modified embodiment of the preferred embodiment of the present invention.

Fig. 23 is a perspective view of the reciprocating motor according to the third preferred embodiment of the present invention.

Fig. 24 is an exploded view of the reciprocating motor according to the above preferred embodiment of the present invention.

Fig. 25 is a schematic sectional view of the reciprocating motor according to the above preferred embodiment of the present invention.

Fig. 26 is a schematic sectional view of the reciprocating motor according to the first modified embodiment of the above preferred embodiment of the present invention.

Fig. 27 is a schematic sectional view of the reciprocating motor according to the second variation of the above preferred embodiment of the present invention.

Fig. 28 is a perspective view schematically illustrating a reciprocating motor according to a fourth preferred embodiment of the present invention.

Fig. 29 is a perspective view schematically illustrating a reciprocating motor according to a fifth preferred embodiment of the present invention.

Fig. 30 is an exploded view of the electric toothbrush according to the first preferred embodiment of the present invention.

Fig. 31 is a schematic view of an assembly relationship structure of a bracket and a motor bottom cover according to the present invention.

Fig. 32 is a schematic view of an assembly relationship structure of another bracket and a motor bottom cover according to the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention. It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3 of the drawings, a reciprocating motor 30 according to a first preferred embodiment of the present invention is illustrated, as shown in fig. 1 to 3, the reciprocating motor 30 includes a stator set 31, a rotor set 32 and at least one elastic member 33, wherein the rotor set 32 is rotatably disposed on the stator set 31 and includes a rotating shaft 321, an inner ring 331 of the elastic member 33 is tightly wound on the rotating shaft 321 to be coupled to the rotating shaft 321, an outer end 333 of the elastic member 33 is fixed to the stator set 31 in a rotating direction of the rotating shaft 321, wherein when the rotating shaft 321 rotates, the elastic member 33 is coupled to the rotating shaft 321 to generate an elastic deformation moment, so that the rotating shaft 321 is maintained by the elastic member 33 to perform a reciprocating motion within a certain rotating stroke.

Further, the stator assembly 31 includes at least one permanent magnet 311 to generate a magnetic field, wherein the rotor assembly 32 is further fixed to an iron core 322 of the rotating shaft 321 and a coil 323 wound around the iron core 322, wherein when a current passes through the coil 323, an electromagnetic field is generated, the electromagnetic field interacts with the magnetic field of the stator assembly 31 to rotate the rotating shaft 321, wherein the inner ring 331 of the elastic member 33 is linked to the rotating shaft 321 to form a state in which the inner ring 331 of the elastic member 33 is linked to the rotor assembly 32, wherein the outer end 333 of the elastic member 33 is fixed to the stator assembly 31 in a rotating direction of the rotating shaft 321, so that when the rotating shaft 321 rotates, the elastic member 33 is linked to the rotating shaft 321 to generate a deformation moment, thereby maintaining the rotating shaft 321 to reciprocate within a certain rotating stroke, therefore, in practical applications, the reciprocating motor 30 of the present invention can be used as a power source of an electric toothbrush, that is, as a motor of an electric toothbrush, to achieve the effect of electric tooth brushing, or the reciprocating motor 30 of the present invention can also be used in other small electric appliances requiring reciprocating motion, which is not limited by the present invention.

In this preferred embodiment of the present invention, the reciprocating motor 30 includes one elastic member 33, and in some embodiments of the present invention, the reciprocating motor 30 includes two elastic members 33, so the number of elastic members 33 is not to be construed as a limitation of the present invention.

In particular, the initial inner diameter of the inner ring 331 is set to be smaller than the diameter of the rotating shaft 321, so that the inner ring 331 can be tightly wound around and fixed to the rotating shaft 321 in a press fit manner, and thus the inner ring 331 is press fit and fixed to the rotating shaft 321 to be interlocked with the rotating shaft 321.

It can be understood that, since the initial inner diameter of the inner ring 331 is set to be smaller than the diameter of the rotating shaft 321, in other words, the inner diameter of the inner ring 331 when not being pressed on the rotating shaft 321 is the initial inner diameter, a stable fixed connection between the inner ring 331 and the rotating shaft 321 can be formed when the inner ring 331 is pressed on and fixed on the rotating shaft 321, so that the inner ring 331 can be prevented from rotating along the rotating shaft 321 when the rotating shaft 321 rotates by the elastic clamping force of the inner ring 331 on the rotating shaft 321.

In other words, the inner ring 331 is press-fitted on the rotating shaft 321 to be linked to the rotating shaft 321, so as to ensure that the elastic clamping force of the inner ring 331 on the rotating shaft 321 can prevent the inner ring 331 and the rotating shaft 321 from moving relatively, thereby maintaining the stability of the elastic element 33 in which the inner ring 331 is linked to the rotating shaft 321.

It is worth mentioning that, the inner ring 331 is configured as a multi-turn ring structure, the multi-turn ring 331 is configured to increase the contact area between the inner ring 331 and the rotating shaft 321, so as to increase the elastic clamping force of the inner ring 331 on the rotating shaft 321, or it is understood that, the multi-turn ring 331 is configured to increase the friction force with the rotating shaft 321, so as to prevent the inner ring 331 from rotating along the rotating shaft 321 when the rotating shaft 321 rotates, so as to further ensure the stability of the performance of the reciprocating motor 30.

Further, the reciprocating motor 30 includes a fixing sleeve 34, wherein the fixing sleeve 34 is sleeved on the inner ring 331 of the elastic member 33 and the rotating shaft 321 to further maintain the stability of the inner ring 331 of the elastic member 33 being linked with the rotating shaft 321.

Preferably, the fixing sleeve 34 is made of a plastic material, so that in practical applications, the fixing sleeve 34 is thermally press-fitted to the inner ring 331 and the rotating shaft 321 of the elastic element 33 to further maintain the stability of the inner ring 331 of the elastic element 33 being linked to the rotating shaft 321, and when the fixing sleeve 34 is thermally press-fitted to the inner ring 331 and the rotating shaft 321 of the elastic element 33, the contact area between the inner ring 331 of the elastic element 33 and the rotating shaft 321 can be increased, so that the inner ring 331 of the elastic element 33 can be further stably fixed to the rotating shaft 321.

Wherein the fixing sheath 34 can also be made of other materials, such as metal, without limiting the invention.

It should be noted that the outer end 333 of the elastic element 33 is inserted and fixed to the stator set 31 to form a state that the outer end 333 of the elastic element 33 is fixed to the stator set 31 in the rotation direction of the rotating shaft 321.

Further, in the preferred embodiment, the outer end 333 of the elastic member 33 is configured as an outer pin 333, wherein the stator pack 31 is configured with an insertion hole 312, wherein the outer pin 333 is inserted into the insertion hole 312 to form a state that the outer end 333 of the elastic member 33 is fixed to the stator pack 31.

It should be noted that, in some embodiments of the present invention, the outer end 333 of the elastic element 33 extends to form an outer ring, wherein the stator set 31 is provided with a fixing post, wherein the outer ring is inserted into the fixing post to form a state that the outer end 333 of the elastic element 33 is fixed to the stator set 31, as shown in fig. 5, which is not limited by the present invention.

Further, wherein the stator assembly 31 includes a casing 313 and a rear end cover 314 adapted to the casing 313, wherein a motor cavity 301 is formed between the casing 313 and the rear end cover 314, wherein the core 322 and the coil 323 are disposed in the motor cavity 301, in this preferred embodiment of the present invention, the insertion hole 312 is disposed in the casing 313, wherein the elastic member 33 is disposed outside the motor cavity 301, so as to avoid mutual interference between the elastic member 33 and the rotor assembly 32 in the spatial layout of the motor cavity 301, that is, the elastic member 33 is disposed outside the motor cavity 301 without affecting the outgoing line of the coil 323 of the rotor assembly 32 and without affecting the spatial layout of the outgoing line of the coil 323 of the rotor assembly 32, thereby facilitating the installation of the reciprocating motor 30, and the elastic member 33 is disposed outside the cabinet 313, which can facilitate maintenance of the reciprocating motor 30, in other words, can facilitate replacement of the elastic member 33 by the reciprocating motor 30, thereby extending the service life of the reciprocating motor 30.

It is understood that, in some embodiments of the present invention, the insertion hole 312 may also be disposed on the rear end cover 314, as shown in fig. 4, or the insertion hole 312 may also be disposed on other structures of the stator assembly 31, as shown in fig. 30, which is not limited in this respect. It will also be appreciated that in some embodiments of the present invention, wherein the elastic member 33 may also be disposed in the motor cavity 301, as shown in fig. 8 and 9, the present invention is not limited thereto.

It should be noted that the rotating shaft 321 has a front end portion 3211 and a rear end portion 3212 opposite to the front end portion 3211, wherein the front end portion 3211 and the rear end portion 3212 of the rotating shaft 321 are respectively passed through the housing 313 and the rear end cover 314, in this preferred embodiment of the present invention, the elastic element 33 is disposed at the front end portion 3211 of the rotating shaft 321 outside the motor cavity 301, in other words, the elastic element 33 is disposed outside the housing 313, so as to avoid mutual interference between the elastic element 33 and the wire outlet space of the coil 323.

In addition, it is worth mentioning that the rotor assembly 32 further includes two protection frames 324, and the two protection frames 324 are respectively sleeved at two ends of the iron core 322 to separate the coil 323 from the iron core 322 when the coil 323 is wound around the iron core 322.

Preferably, the two protection frames 324 are made of an insulating material such as plastic to perform an insulating function.

Preferably, the iron core 322 is formed by stamping a mild steel plate with a fixed thickness into a certain shape and then stacking and fixing the stamped mild steel plate, so that iron loss caused by rotation of the rotor assembly 32 can be reduced.

It should be noted that, in this preferred embodiment, the stator group 31 includes two permanent magnets 311, and the two permanent magnets 311 are separately disposed on the inner side of the casing 313, in some embodiments of the present invention, the stator group 31 may also include a plurality of permanent magnets 311, and the present invention does not limit the number of the permanent magnets 311.

It should be noted that the elastic member 33 further includes an intermediate ring 332 extending between the inner ring 331 and the outer end 333, wherein the intermediate ring 332 is configured as a multi-turn ring structure and the inner diameter of any turn is larger than the inner diameter of the inner ring 331.

In particular, in this preferred embodiment, the middle ring 332 is provided as a planar coil spring, it being understood that the elastic member 33 is provided as a coil spring. Wherein the middle ring 332 may be provided in other shapes, which is not limited in the present invention.

It can be understood that, the inner ring 331 of the elastic element 33 is directly and tightly wound around the rotating shaft 321 by way of pressing, on one hand, the overall structure of the reciprocating motor 30 can be made compact, and on the other hand, the difference of manual operation and the influence of welding mode on the performance of the reciprocating motor 30 are avoided, and in practical application, the inner ring 331 of the elastic element 33 is fixed to the rotating shaft 321 by way of mechanical pressing, so that the defects of long time consumption and low production efficiency of manual welding operation can be avoided, so that the reciprocating motor 30 suitable for mass production is provided by the present invention.

It should also be understood that the elastic member 33 of the present invention can be assembled in a conventional motor, so that the conventional motor becomes a reciprocating motor, and the present invention tightly winds and fixes the inner ring 331 of the elastic member 33 to the rotation shaft 321 in a press-fit manner without performing a secondary process on the rotation shaft 321, thereby providing the reciprocating motor 30 with a simple assembly process and higher production efficiency.

As shown in fig. 4, a reciprocating motor 30A according to a first variation of the above preferred embodiment of the present invention, wherein the reciprocating motor 30A includes a stator set 31A, a rotor set 32A and at least one elastic member 33A, wherein the rotor set 32A is rotatably disposed on the stator set 31A and includes a rotating shaft 321A, an inner ring 331A of the elastic member 33A is tightly wound on the rotating shaft 321A and is coupled to the rotating shaft 321A, and an outer end 333A of the elastic member 33A is fixed to the stator set 31A in a rotating direction of the rotating shaft 321A, wherein when the rotating shaft 321A rotates, the elastic member 33A is coupled to the rotating shaft 321A to generate an elastic deformation moment, so that the rotating shaft 321A is maintained by the elastic member 33A to perform a reciprocating motion within a certain rotation stroke.

Further, the stator assembly 31A includes at least one permanent magnet 311A to generate a magnetic field, wherein the rotor assembly 32A further includes a core 322A fixed to the rotating shaft 321A and a coil 323A wound around the core 322A, wherein when a current passes through the coil 323A, an electromagnetic field is generated, the electromagnetic field interacts with the magnetic field of the stator assembly 31A to rotate the rotating shaft 321A, wherein the inner ring of the elastic member 33A is linked with the rotating shaft 321A to form a state in which the inner ring 331A of the elastic member 33A is linked with the rotating shaft 321A, wherein the outer end 333A of the elastic member 33A is fixed to the stator assembly 31A in a rotating direction of the rotating shaft 321A, so that when the rotating shaft 321A rotates, the elastic member 33A is linked with the rotating shaft 321A to generate a deformation moment, thereby maintaining the rotation shaft 321A to reciprocate within a certain rotation stroke.

In particular, the initial inner diameter of the inner ring 331A is set smaller than the diameter of the rotating shaft 321A, so that the inner ring 331A can be tightly wound and fixed on the rotating shaft 321A in a pressing manner

Further, a fixing sleeve 34A is sleeved on the inner ring 331A and the rotating shaft 321A of the elastic member 33A.

It is worth mentioning that the outer end 333A of the elastic member 33A is configured as an outer pin 333A, wherein the stator pack 31A is configured with an insertion hole 312A, wherein the outer pin 333A is inserted into the insertion hole 312A.

Further, the stator assembly 31A includes a housing 313A and a rear cover 314A adapted to the housing 313A, wherein the iron core 322A and the coil 323A are disposed in the motor cavity 301A, and the elastic element 33A is disposed outside the motor cavity 301A, that is, the outer plug 333A is inserted into the rear cover 314A of the stator assembly 31A to form a state that the outer end 333A of the elastic element 33A is fixed to the stator assembly 31A.

Correspondingly, the rotating shaft 321A has a front end 3211A and a rear end 3212A opposite to the front end 3211A, wherein the front end 3211A and the rear end 3212A of the rotating shaft 321A are respectively passed through the housing 313A and the rear end cap 314A, in this modified embodiment, the elastic element 33A is disposed outside the motor cavity 301A at the rear end 3212A of the rotating shaft 321A, in other words, the elastic element 33A is disposed outside the rear end cap 314A, so as to avoid mutual interference between the elastic element 33A and the outlet space of the coil 323A.

In this modified embodiment, the structure of the reciprocating motor 30A is the same as that of the reciprocating motor 30 of the above-described preferred embodiment except that the position of the elastic member 33A and the position of the insertion hole 312A are different.

As shown in fig. 5 to 6, a reciprocating motor 30B according to a second modified embodiment is a reciprocating motor 30B, wherein the reciprocating motor 30B includes a stator set 31B, a rotor set 32B and at least one elastic member 33B, wherein the rotor set 32B is rotatably disposed on the stator set 31B and includes a rotating shaft 321B, an inner ring 331B of the elastic member 33B is tightly wound around the rotating shaft 321B to be linked with the rotating shaft 321B, and an outer end 333B of the elastic member 33B is fixed to the stator set 31B in a rotating direction of the rotating shaft 321B.

Further, the stator assembly 31B includes at least one permanent magnet 311B to generate a magnetic field, wherein the rotor assembly 32B further includes an iron core 322B fixed to the rotating shaft 321B and a coil 323B wound around the iron core 322B, wherein the inner ring of the elastic member 33B is tightly wound around the rotating shaft 321B to be linked with the rotating shaft 321B, and wherein the outer end 333B of the elastic member 33B is fixed to the stator assembly 31B in the rotating direction of the rotating shaft 321B, so that when the rotating shaft 321B rotates, the elastic member 33B is linked by the rotating shaft 321B to generate a deformation moment to reciprocate.

In particular, the initial inner diameter of the inner ring 331B is set to be smaller than the diameter of the rotating shaft 321B, so that the inner ring 331B is press-fitted and fixed to the rotating shaft 321B to be interlocked with the rotating shaft 321B.

Further, the fixing sleeve 34B is sleeved on the inner ring 331B and the rotating shaft 321B.

It should be noted that the outer end 333B of 33B is configured as an outer ring 333B, wherein 31B is configured with a fixing post 312B, wherein 333B is inserted into the fixing post 312B to form a state that the outer end 333B is fixed to the stator set 31B.

Further, the housing 31B includes a housing 313B and a rear end cap 314B adapted to the housing 313B, wherein a motor cavity 301B is formed between the housing 313B and the rear end cap 314B, wherein the core 322B and the coil 323B are disposed in the motor cavity 301B, wherein the fixing post 312B is disposed in the housing 313B, and wherein the elastic member 33B is disposed outside the motor cavity 301B. That is, the outer ring 33B is inserted into the housing 313B of the stator assembly 31B to form a state in which the outer end 333B of the elastic member 33B is fixed to the stator assembly 31B.

Correspondingly, the rotating shaft 321B has a front end portion 3211B and a rear end portion 3212B opposite to the front end portion 3211B, wherein the front end portion 3211B and the rear end portion 3212B of the rotating shaft 321B are respectively passed through the casing 313B and the rear end cover 314B, in this modified embodiment, 33B is disposed at the front end portion 3211B of the rotating shaft 321B outside the motor cavity 301B, in other words, 33B is disposed outside the casing 313B, thereby avoiding mutual interference between 33B and the outlet space of the coil 323B.

In the present embodiment, the structure of 30B is the same as that of 30 described above, except that 333B is different from 313B.

As shown in fig. 7, a reciprocating motor 30C according to a third modified embodiment, wherein the reciprocating motor 30C includes a stator group 31C, a rotor group 32C and at least one elastic member 33C, wherein the stator assembly 31C includes at least one permanent magnet 311C to generate a magnetic field, wherein the rotor assembly 32C is rotatably disposed on the stator assembly 31C and includes a rotating shaft 321C, an iron core 322C fixed on the rotating shaft 321C, and a coil 323C wound around the iron core 322C, wherein an inner ring 331C of the elastic member 33C is tightly wound around the rotating shaft 321C and is linked with the rotating shaft 321C, wherein an outer end 333C of the elastic member 33C is fixed to the stator set 31C in the rotation direction of the rotating shaft 321C, when the rotating shaft 321C rotates, the 33C is linked by the 321C to generate a deformation moment to reciprocate.

Specifically, the initial inner diameter of the inner ring 331C is set to be smaller than the diameter of 321C.

Further, the fixing sleeve 34C is sleeved on the inner ring 331C and the rotating shaft 321C.

It should be noted that the outer end 333C of the elastic member 33C is configured as an outer ring 333C, wherein the stator set 31C is configured with a fixing post 312C, and wherein the outer ring 333C is inserted into the fixing post 312C.

Further, 31C includes 313C and 314C, 322C and 323C disposed inside the motor cavity 301C, the insertion hole 312C disposed in the rear cover 314C, and the elastic member 33C disposed outside the motor cavity 301C.

It should be noted that 321C has a rear end portion 3212C opposite to the front end portion 3211C, in this modified embodiment, the elastic element 33C is disposed at the rear end portion 3212C of the rotating shaft 321C outside the motor cavity 301C, so as to avoid the mutual interference between the elastic element 33C and the wire outlet space of the coil 323C.

In this embodiment, the structure of 30C is the same as that of 30 described above, except that the structure and position of 33C are different.

As shown in fig. 8, a reciprocating motor 30D as a fourth modified embodiment is a reciprocating motor 30D, wherein 30D includes a stator set 31D, a rotor set 32D and at least one elastic member 33D, wherein the stator set 31D includes at least one permanent magnet 311D to generate a magnetic field, wherein the rotor set 32D is rotatably disposed on the stator set 31D and includes a rotating shaft 321D, a core 322D fixed to the rotating shaft 321D, and a coil 323D wound on the core 322D, wherein an inner ring 331D of the elastic member 33D is tightly wound and fixed to the rotating shaft 321D to be coupled with the rotating shaft 321D, and an outer end 333D of the elastic member 33D is fixed to the stator set 31D in a rotating direction of the rotating shaft 321D.

Specifically, the initial inner diameter of 331D is set smaller than the diameter of the rotation shaft 321D. Wherein the outer pins 333D are inserted into the insertion holes 312D to form a state in which the outer ends 333D of the elastic members 33D are fixed to the stator pack 31D.

Further, 31D includes a housing 313D and a rear end cap 314D adapted thereto, wherein the core 322D and the coil 323D are disposed within the motor cavity 301D, wherein the receptacle 312D is disposed within the housing 313D, wherein the resilient member 33D is disposed within the motor cavity 301D.

It should be noted that 321D has a front end 3211D and a rear end 3212D opposite to the front end 3211D, wherein the front end 3211D and the rear end 3212D of the rotating shaft 321D are respectively passed through the housing 313D and the rear end cap 314D, in this modified embodiment, the elastic element 33D is disposed at the front end 3211D of 321D inside the motor cavity 301D.

It is understood that in this embodiment, 33D is disposed inside the motor cavity 301D, and the structure of the reciprocating motor 30D is the same as that of the above-described reciprocating motor 30 except for the position of the elastic member 33D.

As shown in fig. 9, a reciprocating motor 30E as a fifth modified embodiment, wherein the reciprocating motor 30E includes a stator set 31E, a rotor set 32E and at least one elastic member 33E, wherein the rotor set 31E includes at least one permanent magnet 311E to generate a magnetic field, wherein the rotor set 32E is rotatably disposed on the stator set 31E and includes a rotating shaft 321E, an iron core 322E fixed on the rotating shaft 321E and a coil 323E wound on the iron core 322E, wherein an inner ring 331E of the elastic member 33E is tightly wound on the rotating shaft 321E to be linked with the rotating shaft 321E, and wherein an outer end 333E of the 33E is fixed on the stator set 31E in the rotating direction of the rotating shaft 321E, so that when the rotating shaft 321E rotates, the 33E is linked with the rotating shaft 321E.

Specifically, the initial inner diameter of the inner ring 331E is set to be smaller than the diameter of 321E.

It is worth mentioning that the outer end 333E of 33E is configured as an outer pin 333E, and the outer end 31E is configured as an insertion hole 312E, wherein 333E is inserted into the insertion hole 312E to form a state that the outer end 333E of 33E is fixed to the stator set 31E.

Further, the stator assembly 31E includes a casing 313E and a rear end cover 314E adapted to the casing 313E, wherein a motor cavity 301E is formed between the casing 313E and the rear end cover 314E, wherein the core 322E and the coil 323E are disposed in the motor cavity 301E, wherein the insertion hole 312E is disposed in the rear end cover 314E, and wherein the elastic member 33E is disposed in the motor cavity 301E.

It should be noted that 321E has a front end 3211E and a rear end 3212E opposite to the front end 3211E, wherein 3211E and 3212E are respectively passed through 313E and 314E, and 33E is disposed at the rear end 3211E of the rotating shaft 321E.

In the present embodiment, the structure of the motor 30 is the same as that of the motor 30 except that the position of the motor 33E is different.

It should also be understood that the elastic members 33D, 33E of the reciprocating motors 30D, 30E according to the fourth and fifth modified embodiments of the present invention may also be extended to form an outer ring, and the stator groups 31D, 31E may be provided with a fixing post in the motor cavities 301D, 301E to form a fixed connection state of the elastic members 33D, 33E with the stator groups 31D, 31E, respectively, that is, the fourth and fifth embodiments described herein should not be construed as limiting the present invention.

As shown in fig. 10, a reciprocating motor 30F according to a sixth modified embodiment is a reciprocating motor 30F, wherein 30F includes a stator assembly 31F, a rotor assembly 32F and two elastic members 33F, wherein 31F includes at least one permanent magnet 311F to generate a magnetic field, wherein 32F is rotatably disposed on 31F and includes a rotating shaft 321F, an iron core 322F fixed to the rotating shaft 321F, and a coil 323F wound around the iron core 322F, wherein an inner ring 331F of each elastic member 33F is tightly wound around and fixed to the rotating shaft 321F to be interlocked with the rotating shaft 321F, and an outer end 333F of each elastic member 33F is fixed to the stator assembly 31F in a rotating direction of the rotating shaft 321F.

Specifically, the initial inner diameters of the inner rings 331F are set to be smaller than the diameters of the rotating shafts 321F, respectively.

It should be noted that the rotating shaft 321F has a front end portion 3211F and a rear end portion 3212F opposite to the front end portion 3211F, wherein the two elastic members 33F are respectively disposed on the front end portion 3211F and the rear end portion 3212F of the rotating shaft 321F and are configured to be symmetrical to each other, or it can be understood that the two elastic members 33F are respectively configured as a right spiral elastic member and a left spiral elastic member, so as to ensure that when the rotating shaft rotates, the direction of the acting force of the deformation torque generated by the two elastic members 33F on the rotating shaft 321F is consistent, so as to increase the acting force of 33F on the rotating shaft 321F, and make 30F have higher output power.

Further, the 30F includes two fixing sleeves 34F respectively sleeved on the inner ring 331F of the 33F and the rotating shaft 321F.

It is worth mentioning that an outer pin 333F of 33F is inserted into the insertion hole 312F. Further, the housing 31F includes a housing 313F and a rear end cap 314F, wherein the core 322F and the coil 323F are disposed in the motor cavity 301F, and the two elastic members 33F are disposed at the front end 3211F and the rear end 3212F of the rotating shaft 321F, respectively.

In the present embodiment, the structure of the reciprocating motor 30F is the same as that of the reciprocating motor 30 according to the above-described preferred embodiment of the present invention except that the number of the 33F, 34F and the number and position of the insertion holes 312F are different.

As shown in fig. 11, a reciprocating motor 30G is a seventh modified embodiment, wherein the reciprocating motor 30G includes a stator set 31G, a rotor set 32G and two elastic members 33G, wherein the stator assembly 31G comprises at least one permanent magnet 311G, wherein the rotor assembly 32G is rotatably disposed on the stator assembly 31G and comprises a rotating shaft 321G, an iron core 322G fixed on the rotating shaft 321G, and a coil 323G wound on the iron core 322G, wherein an inner ring 331G of each elastic member 33G is tightly wound around the rotating shaft 321G to be linked with the rotating shaft 321G, and an outer end 333G of each elastic member 33G is fixed to the stator pack 31G in the rotation direction of the rotating shaft 321G, therefore, when the shaft 321G rotates, the two elastic members 33G are linked by the shaft 321G to generate deformation moments, so as to maintain the shaft 321G to reciprocate within a certain rotation stroke.

Specifically, the inner rings 331G of 33G have initial inner diameters smaller than the diameter of the rotation shafts 321G, respectively.

It should be mentioned that the rotating shaft 321G has a front end portion 3211G and a rear end portion 3212G opposite to the front end portion 3211G, wherein the two elastic members 33G are respectively disposed on the front end portion 3211G and the rear end portion 3212G of the rotating shaft 321G and are disposed symmetrically to each other, and the two elastic members 33G are respectively disposed as a right spiral elastic member and a left spiral elastic member, so as to ensure that a direction of a deformation moment generated by the 33G on the rotating shaft 321G is consistent when the rotating shaft rotates, so as to increase an acting force of the elastic member 33G on the rotating shaft 321G, and enable the 30G to have a greater output power.

Further, the 30G includes two fixing sleeves 34G, and is respectively sleeved to the corresponding inner rings 331G and 321G.

It should be noted that the outer end 333G of each elastic member 33G is configured as an outer ring 333G, wherein the stator assembly 31G is configured with two fixing posts 312G, and each outer ring 333G is inserted into each fixing post 312G to form a state that the outer end 333G of each elastic member 33G is fixed to the stator assembly 31G.

Furthermore, the stator assembly 31G includes a housing 313G and a rear end cap 314G adapted to the housing 313G, wherein a motor cavity 301G is formed between the housing 313G and the rear end cap 314G, wherein the iron core 322G and the coil 323G are disposed within the motor cavity 301G, wherein the two fixing posts 321G are disposed at 313G and 314G, respectively, and the two elastic members 33G are disposed at the front end portion 3211G and the rear end portion 3212G of the rotating shaft 321G, respectively, outside the motor cavity 301G.

In this embodiment, the structure of 30G is the same as that of 30F described above, except that the structures of 33G and 32G are different.

It should also be understood that the two elastic members 33G of 30G may be respectively fixed to the stator assembly by means of external insertion into the insertion holes and by means of external ring insertion into the fixing posts, in other words, the 30G includes one elastic member having external pins and one elastic member having an external ring, wherein the elastic members of the external pins and the elastic members of the external ring may be disposed at either end of the rotating shaft, that is, other variations of the structure of the reciprocating motor of the two elastic members are possible, and the sixth and seventh variations described in the present invention are not to be construed as limiting the present invention.

Referring to fig. 12 to 14 of the drawings, a reciprocating motor 30H according to a second preferred embodiment of the present invention is shown in the drawings, wherein the reciprocating motor 30H includes a stator assembly 31H, a rotor assembly 32H, and at least one elastic member 33H, wherein the stator assembly 32H is rotatably disposed on the stator assembly 31H and includes a rotating shaft 321H, an inner ring 331H of the 33H is tightly wound around the inner ring 321H and is linked with the inner ring 321H, an outer end 333H of the 33H is fixed to the stator assembly 31H in the rotating direction of the inner ring 321H, and when the inner ring 321H rotates, the 33H is linked with the inner ring 321H to generate an elastic deformation moment, so that the rotating shaft 321H is maintained by the elastic member 33H to perform a reciprocating motion within a certain rotating stroke.

Further, the stator assembly 31H includes at least one permanent magnet 311H to generate a magnetic field, wherein 32H is further fixed to an iron core 322H of 321H and a coil 323H wound around 322H, wherein the inner ring 331H of the elastic member 33H is tightly wound around the rotating shaft 321H to be linked, and wherein the outer end 333H of the elastic member 33H is inserted and fixed to the stator assembly 31H in the rotating direction of 321H, so that when 321H rotates, the elastic member 33H is linked by 321H to reciprocate.

It should be noted that the rotor assembly 32H includes two protection frames 324H, and the two protection frames 324H are respectively sleeved at two ends of the iron core 322H. In particular, the initial inner diameter of the inner ring 331H is set to be smaller than the diameter of the rotating shaft 321H, so that the inner ring 331H can be tightly wound and fixed on the rotating shaft 321H in a press-fit manner.

Further, the motor 30H includes a fixing sleeve 34H, an inner ring 331H sleeved on the elastic member 33H, and a rotating shaft 321H.

Furthermore, the stator assembly 31H includes a housing 313H and a rear end cover 314H, wherein the core 322H and the coil 323H are disposed outside the motor cavity 301H, wherein the insertion hole 312H is disposed in the housing 313H, wherein the elastic element 33H is disposed outside the motor cavity 301H, that is, wherein the outer insertion pin 333H is inserted into the housing 313H to form a state that the outer end 333H of the elastic element 33H is fixed to the stator assembly 31H.

It should be noted that the rotating shaft 321H has a front end portion 3211H and a rear end portion 3212H opposite to the front end portion 3211H, wherein the front end portion 3211H and the rear end portion 3212H of the rotating shaft 321H are respectively passed through the casing 313H and the rear end cap 314H, and in this deformation manner, the elastic element 33H is disposed at the front end portion 3211H, so as to avoid mutual interference between the coil 323H and the 33H.

In addition, 33H further extends to a middle ring 332H between the inner ring 331H and the outer end 333H, and is provided with a tower spring.

It is understood that, in the present preferred embodiment, the structure of the motor 33H of the present second preferred embodiment is the same as that of the reciprocating motor 30 of the first preferred embodiment of the present invention except that the shape of the elastic member 33H is different.

As shown in fig. 15, a reciprocating motor 30I as a first variation of the above preferred embodiment, wherein the reciprocating motor 30I includes a stator set 31I, a rotor set 32I and at least one elastic member 33I, wherein 31I includes at least one permanent magnet 311I to generate a magnetic field, wherein the rotor set 32I is rotatably disposed on the stator set 31I and includes a rotating shaft 321I, an iron core 322I fixed on the rotating shaft 321I and a coil 323I wound on the iron core 322I, wherein an inner ring 331I of the elastic member 33I is tightly wound on the rotating shaft 321I to be linked with the rotating shaft 321I, and wherein an outer end 333I of the elastic member 33I is fixed on the stator set 31I in the rotating direction of the rotating shaft 321I.

Specifically, the inner ring 331I is initially set to have an inner diameter smaller than that of 321I, and is fastened around 321I in a press-fit manner. Further, the motor 30I includes a fixing sleeve 34I, an inner ring 331I sleeved on the 33I, and a rotation shaft 321I.

It is worth mentioning that the outer end 333II of 33I is configured as an outer pin 333I and is inserted into the insertion hole 312I.

Specifically, the rotating shaft 321I has a front end portion 3211I and a rear end portion 3212I opposite to 3211I, wherein 3211I and 3212I are respectively passed through the housing 313I and the rear end cap 314I, in this way, the elastic member 33I is disposed at the rear end portion 3212I of the rotating shaft 321I outside the motor cavity 301I, so as to avoid mutual interference between 33I and the coil 323I.

It is understood that, in the present modified embodiment, other structures of the reciprocating motor 30I of this aspect of the present invention are the same as those of the reciprocating motor 30H of the above-described embodiment of the present invention except that the position of the elastic member 33I is different.

As shown in fig. 16 and 17, a reciprocating motor 30J, which is a second variation of the above preferred embodiment, wherein 30J includes a stator assembly 31J, a rotor assembly 32J, and at least one elastic member 33J, wherein 31J includes at least one permanent magnet 311J to generate a magnetic field, wherein 32J is rotatably disposed on 31J and includes a rotating shaft 321J, a core 322J fixed on the rotating shaft 321J, and a coil 323J wound on 322J, wherein an inner ring 331J of the elastic member 33J is tightly wound on the rotating shaft 321J to be interlocked with the rotating shaft 321J, and wherein an outer end 333J of 33J is fixed on the stator assembly 31J in a rotating direction of the rotating shaft 321J, so that when the rotating shaft 321J rotates, 33J is interlocked with the rotating shaft 321J to generate a deforming moment to reciprocate.

Specifically, the initial inner diameter of the inner ring 331J is set to be smaller than the diameter of the rotating shaft 321J, so that the inner ring 331J can be tightly wound and fixed on the rotating shaft 321J in a press-fit manner, thereby forming a state in which the inner ring 331J is interlocked with the rotating shaft 321J.

Further, the reciprocating motor 30J includes a fixing sleeve 34J, and is sleeved on the inner ring 331J of the elastic member 33J and the rotating shaft 321J to further maintain the stability of the inner ring 331J being linked to the rotating shaft 321J.

It should be noted that the outer end 333J of the elastic element 33J is configured as an outer ring 333J, wherein the outer ring 333J is inserted into the fixing pillar 312J to form a state that the outer end 333J of the elastic element 33J is fixed to the stator assembly 31J.

In addition, it is worth mentioning that the rotating shaft 321J has a front end portion 3211J and a rear end portion 3212J opposite to the front end portion 3211J, wherein the front end portion 3211J and the rear end portion 3212J of the rotating shaft 321J are respectively passed through the casing 313J and the rear end cover 314J, in this embodiment, the elastic element 33J is disposed at the front end portion 3211J of the rotating shaft 321J outside the motor cavity 301J, so as to avoid mutual interference between the elastic element 33J and the outlet space of the coil 323J.

It is understood that in this embodiment, the elastic member 33J is implemented as a tower-shaped spring and is fixedly connected to the stator assembly 31J by inserting the inner ring 331J into the fixing post 312J. The reciprocating motor 30J of the present invention has the same structure as the motor 30H described above except that the elastic member 33J has a different structure from the stator assembly 31J.

As shown in fig. 18, a reciprocating motor 30K as a third variation of the above preferred embodiment, wherein 30K includes a stator set 31K, a rotor set 32K and at least one elastic member 33K, wherein 31K includes at least one permanent magnet 311K to generate a magnetic field, wherein 32K is rotatably disposed on 31K and includes a rotating shaft 321K, an iron core 322K fixed on the rotating shaft 321K and a coil 323K wound on the iron core 322K, wherein an inner ring 331K of 33K is tightly wound on the rotating shaft 321K to be linked with the rotating shaft 321K, and wherein an outer end 333K of 33K is fixed on the stator set 31K in the rotating direction of the rotating shaft 321K, so that when the rotating shaft 321K rotates, 33K is linked by the rotating shaft 321K to generate a deforming moment to reciprocate.

Specifically, the inner ring 331K is initially set to have an inner diameter smaller than the diameter of 321K and is fastened to the rotation shaft 321K.

Further, 30K includes a fixing sleeve 34K, and is coupled to the inner ring 331K and the rotation shaft 321K of 33K.

It should be noted that the outer end 333K of the elastic element 33K is configured as an outer ring 333K, wherein the stator set 31K is configured with a fixing post 312K, and wherein the outer ring 333K is inserted into the fixing post 312K to form a state in which the outer ring 333K is fixed to the outer ring 31K.

In addition, the rotating shaft 321K has a front end 3211K and a rear end 3212K opposite to the front end 3211K, wherein the front end 3211K and the rear end 3212K are respectively passed through the casing 313K and the rear end cap 314K, in this modified embodiment, the elastic element 33K is disposed at the rear end 3212K of the rotating shaft 321K outside the motor cavity 301K.

It is to be understood that, in this embodiment, the elastic element 33K is implemented as a tower-shaped spring and is fixedly connected to the stator pack 31K by the inner ring 331K being inserted into the fixing post 312K. The structure of the present motor 30K is the same as that of the above-described motor 30H, except that the position and structure of the elastic member 33K are different from those of the stator group 31K.

As shown in fig. 19 to 21, a reciprocating motor 30L which is a fourth modified embodiment of the above preferred embodiment, wherein 30L includes a stator set 31L, a rotor set 32L and two elastic members 33L, wherein 31L includes at least one permanent magnet 311L to generate a magnetic field, wherein 32L is rotatably disposed on the stator assembly 31L and includes a rotation shaft 321L, a core 322L fixed on the rotation shaft 321L, and a coil 323L wound around the core 322L, wherein an inner ring 331L of each elastic member 33L is tightly wound around the rotation shaft 321L and is linked with the rotation shaft 321L, and the outer end 333L of each elastic member 33L is fixed to the stator set 31L in the rotation direction of the rotating shaft 321L, thus, when the rotating shaft 321L rotates, the two elastic members 33L are linked by the rotating shaft 321L to generate deformation moments respectively, so as to maintain the rotating shaft 321L to perform reciprocating motion within a certain rotating stroke.

Specifically, the inner rings 331L of the elastic members each have an initial inner diameter smaller than the diameter of the rotation shaft 321L.

It should be noted that the rotating shaft 321L has a front end portion 3211L and a rear end portion 3212L opposite to the front end portion 3211L, wherein the two elastic members 33L are respectively disposed on the front end portions 3211L and 3212L and are disposed symmetrically to each other, or it can be understood that 33L is respectively disposed as a right spiral elastic member and a left spiral elastic member, so as to ensure that the directions of the acting forces of the deformation torque generated by 33L on the rotating shaft 321L are consistent when the rotating shaft rotates, so as to increase the acting force of 33L on the rotating shaft 321L and have greater output power.

Further, the 30L includes two fixing sleeves 34L respectively sleeved on the inner ring 331L and the rotation shaft 321L.

It should be noted that the outer end 333L of 33L is configured as an outer pin 333L, and the outer pin 31L is configured as an insertion hole 312L, wherein the outer pin 333L is inserted into the insertion hole 312L to form a state that the outer end 333L is fixed to the stator assembly 31L.

Furthermore, the stator assembly 31L includes a casing 313L and a rear end cover 314L adapted to the casing 313L, wherein a motor cavity 301L is formed between the casing 313L and the rear end cover 314L, wherein the iron core 322L and the coil 323L are disposed in the motor cavity 301L, wherein 313L and the 314L are respectively disposed with an insertion hole 312L, and wherein the two elastic members 33L are respectively disposed at the front end portion 3211L and the rear end portion 3212L of the rotating shaft 321L outside the motor cavity 301L.

In addition, each of the elastic members 33L further includes an intermediate ring 332L extending between the inner ring 331L and the outer end 333L, wherein the intermediate ring 332L is configured as a tower spring.

It is understood that, in the present embodiment, the other structure of the reciprocating motor 30L is the same as that of the above-described reciprocating motor 30H of the present invention except that the number of the 33L, 34L and the number and position of the insertion holes 312L are different.

As shown in fig. 22, a reciprocating motor 30M according to a fifth modification of the above preferred embodiment, wherein the reciprocating motor 30M includes a stator set 31M, a rotor set 32M and two elastic members 33M, wherein the stator set 31M includes at least one permanent magnet 311M to generate a magnetic field, wherein the permanent magnet 31M is rotatably disposed on the stator set 31M and includes a rotating shaft 321M, an iron core 322M fixed on the rotating shaft 321M, and a coil 323M wound on the rotating shaft 322M, wherein an inner ring 331M of each elastic member 33M is tightly wound around the rotating shaft 321M to be interlocked with the rotating shaft 321M, and an outer end 333M of each elastic member 33M is fixed on the stator set 31M in the rotating direction of the rotating shaft 321M, so that when the rotating shaft 321M rotates, the two elastic members 33M are interlocked with the rotating shaft 321M to generate a deformation moment to perform a reciprocating motion.

Specifically, the inner rings 331M of the elastic members 33M are initially set to have an inner diameter smaller than that of the rotating shaft 321M, respectively, so that the elastic members 33M can be fixed to both ends of the rotating shaft 321M in a press-fit manner, respectively.

It should be noted that the rotating shaft 321M has a front end portion 3211M and a rear end portion 3212M opposite to the front end portion 3211M, wherein the two elastic members 33M are respectively disposed at the front end portion 3211M and the rear end portion 3212M of the rotating shaft 321M and are disposed symmetrically to each other, or it can be understood that the two elastic members 33M are respectively disposed as a right spiral elastic member and a left spiral elastic member, so as to ensure that the directions of the acting forces of the deforming moments generated by the two elastic members 33M on the rotating shaft 321M are consistent when the rotating shaft rotates.

Further, the 30M includes two fixing sleeves 34M respectively sleeved on the inner ring 331M and the rotating shaft 321M.

It should be noted that the outer end 333M of the elastic member 33M is configured as an outer ring 333M, wherein the stator set 31M is configured with two fixing posts 312M, and 333M is inserted into each fixing post 312M.

Further, the 31M includes a housing 313M and a rear end cap 314M adapted to the housing 313M, wherein a motor cavity 301M is formed between the housing 313M and the rear end cap 314M, wherein 322M and 323M are disposed within the motor cavity 301M, wherein two fixing posts 321M are disposed on the housing 313M and the rear end cap 314M, respectively, and wherein two elastic members 33M are disposed on the housing 3211M and the rear end cap 3212M, respectively.

It is worth mentioning that 33M further comprises a middle ring 332M extending between the inner ring 331M and the outer end 333M, wherein the middle ring 332M is configured as a tower spring.

It is understood that, in the present modified embodiment, the other structure of the reciprocating motor 30M is the same as that of the above-described reciprocating motor 30L of the present invention except that the structure of the elastic member 33M is different from that of the stator group 32M.

It should also be understood that the two elastic members 33M of the reciprocating motor 30M may be respectively fixed to the stator pack by means of an external insertion heel jack and an external ring insertion fixing post, in other words, the reciprocating motor 30M includes an elastic member having an external pin and an elastic member having an external ring, wherein the elastic member having an external pin and the elastic member having an external ring may be disposed at either end of the rotating shaft, that is, other modifications of the structure of the reciprocating motor having two elastic members are possible, and the fourth and fifth modified embodiments should not be construed as limiting the present invention.

Referring to fig. 23 to 25 of the drawings, a reciprocating motor 30N according to a third preferred embodiment of the present invention is shown, wherein 30N includes a stator assembly 31N, a rotor assembly 32N and at least one elastic member 33N, wherein 31N includes at least one permanent magnet 311N to generate a magnetic field, wherein 32N is rotatably disposed on the stator assembly 31N and includes a rotating shaft 321N, an iron core 322N fixed to the rotating shaft 321N and a coil 323N wound around the iron core 322N, wherein an inner ring 331N of the elastic member 33N is tightly wound around the rotating shaft 321N to be linked, and an outer end 333N of the elastic member 33N is fixed to the stator assembly 31N in a rotating direction of the rotating shaft 321N, so that when 321N rotates, the elastic member 33N is linked by the rotating shaft 321N to generate a deformation moment.

Specifically, the initial inner diameter of the inner ring 331N is set to be smaller than the diameter of the rotating shaft 321N, so that the inner ring 331N can be tightly wound and fixed on the rotating shaft 321N in a pressing manner, thereby forming a state in which the inner ring 331N is interlocked with the rotating shaft 321N.

Further, 30N includes a fixing sleeve 34N, and is sleeved on the inner ring 331N of 33N and the rotating shaft 321N.

It is worth mentioning that the rotor set 32N includes two guard frames 324N.

It should be noted that the outer end 333N of the elastic element 33N is configured as an outer pin 333N, wherein the stator pack 31N is configured with an insertion hole 312N, wherein the outer pin 333N is inserted into the insertion hole 312N.

Further, the stator assembly 31N includes a housing 313N and a rear end cap 314N adapted to the housing 313N, wherein a motor cavity 301N is formed between the housing 313N and the rear end cap 314N, wherein 322N and 323N are disposed outside the motor cavity 301N, wherein the insertion hole 312N is disposed in the housing 313N, and wherein the elastic member 33N is disposed outside the motor cavity 301N.

It should be noted that the rotating shaft 321N has a front end portion 3211N and a rear end portion 3212N opposite to the front end portion 3211N, wherein the front end portions 3211N and 3212N are respectively passed through the casing 313N and the rear end cap 314N, in this embodiment, the elastic element 33N is disposed at the front end portion 3211N of the rotating shaft 321N outside the motor cavity 301N.

In addition, the elastic member 33N further includes a middle ring 332N extending between the inner ring 331N and the outer end 333N, wherein the middle ring 332N is configured as a cylindrical spring, or it can be understood that the middle ring 332N is configured as a torsion spring.

It is understood that, in this preferred embodiment, the other structure of the reciprocating motor 33N of the third preferred embodiment of the present invention is the same as that of the reciprocating motor 30 of the first preferred embodiment except that the shape of the elastic member 33N is different.

As shown in fig. 26, a reciprocating motor 30O as a first variation of the above preferred embodiment, wherein 30O includes a stator assembly 31O, a rotor assembly 32O and at least one elastic member 33O, wherein 31O includes at least one permanent magnet 311O to generate a magnetic field, wherein 32O is rotatably disposed on 31O and includes a rotating shaft 321O, an iron core 322O fixed to the rotating shaft 321O and a coil 323O wound around the iron core 322O, wherein an inner ring 331O of the elastic member 33O is tightly wound around and coupled to the rotating shaft 321O, and wherein an outer end 333O of the elastic member 33O is fixed to the stator assembly 31O in a rotating direction of the rotating shaft 321O, so that when 321O rotates, the elastic member 33O is coupled to the rotating shaft 321O to generate a deforming moment to reciprocate.

Specifically, the initial inner diameter of the inner ring 331O is set to be smaller than the diameter of the rotating shaft 321O, so that the inner ring 331O can be tightly wound and fixed on the rotating shaft 321O in a press-fit manner, thereby forming a state in which the inner ring 331O is interlocked with the rotating shaft 321O.

Further, the 30O includes a fixing sleeve 34O and is sleeved on the inner ring 331O and the rotating shaft 321O.

It should be noted that the outer end 333O of the elastic element 33O is configured as an outer pin 333O, and the stator assembly 31O is configured with an insertion hole 312O, wherein 333O is inserted into the insertion hole 312O to form a state of being fixed to the stator assembly 31O.

Specifically, the rotating shaft 321O has a front end portion 3211O and an opposite rear end portion 3212O, wherein the front end portion 3211O and the rear end portion 3212O are respectively passed through the casing 313O and the rear end cap 314O, and in this modified embodiment, 33O is disposed at the rear end portion 3212O outside the motor cavity 301O, so as to avoid interference with the coil 323O.

In this embodiment, the structure of 30O is the same as that of 30N described above except that the position of 33O is different.

As shown in fig. 27, a reciprocating motor 30P as a second variation of the above preferred embodiment, wherein the reciprocating motor 30P includes a stator set 31P, a rotor set 32P and two elastic members 33P, wherein the stator set 31P includes at least one permanent magnet 311P to generate a magnetic field, wherein the permanent magnet 31P is rotatably disposed on the stator set 31P and includes a rotating shaft 321P, an iron core 322P fixed on the rotating shaft 321P and a coil 323P wound on the rotating shaft 322P, wherein the inner ring 331P of each elastic member 33P is tightly wound around the rotating shaft 321P to be interlocked, and the outer end 333P of each elastic member 33P is fixed on the stator set 31P in the rotating direction of the rotating shaft 321P, so that when the rotating shaft 321P rotates, the two elastic members 33P are interlocked by the rotating shaft 321P to generate a deformation moment to reciprocate.

Specifically, the initial inner diameter of the inner ring 331P of each elastic member 33P is set smaller than the diameter of the rotation shaft 321P, so that each elastic member 33P can be fixed to both ends of the rotation shaft 321P in a press-fit manner.

It should be noted that the rotating shaft 321P has a front end portion 3211P and a rear end portion 3212P opposite to the front end portion 3211P, wherein the two elastic members 33P are respectively disposed at the front end portion 3211P and the rear end portion 3212P of the rotating shaft 321P and are arranged symmetrically to each other, or it can be understood that the two elastic members 33P are respectively disposed as a right spiral elastic member and a left spiral elastic member, so as to ensure that the direction of the acting force of the deforming moment generated by the two elastic members 33P on the 321P is consistent when the rotating shaft rotates.

Further, the reciprocating motor 30P includes two fixing sleeves 34P, and is respectively sleeved on the inner ring 331P and the rotating shaft 321P of the corresponding elastic member 33P.

It should be noted that the outer end 333P of the elastic element 33P is configured as an outer pin 333P, and the stator pack 31P is configured with an insertion hole 312P, wherein the outer end 333P is inserted into the insertion hole 312P to be fixed to the stator pack 31P.

Furthermore, the stator assembly 31P includes a casing 313P and a rear end cover 314P adapted to the casing 313P, wherein a motor cavity 301P is formed between the casing 313P and the rear end cover 314P, wherein the iron core 322P and the coil 323P are disposed in the motor cavity 301P, wherein 313P and 314P are respectively disposed with an insertion hole 312P, and wherein the two elastic members 33P are respectively disposed at the front end portion 3211P and the rear end portion 3212P of the rotating shaft 321P outside the motor cavity 301P.

In addition, each of the elastic members 33P further includes a middle ring 332P extending between the inner ring 331P and the outer end 333P, wherein the middle ring 332P is configured as a cylindrical spring, or it can be understood that the middle ring 332P is configured as a torsion spring.

It is understood that, in this modified embodiment, the reciprocating motor 30P has the same structure as the above-described motor 30N of the present invention except that the number and positions of the elastic members 33P, the fixing sleeve 34P, and the insertion holes 312P are different.

As shown in fig. 28, a reciprocating motor 30R according to a fourth preferred embodiment, wherein the reciprocating motor 30R includes a stator assembly 31R, a rotor assembly 32R and at least an elastic member 33R, wherein the rotor assembly 32R is rotatably disposed on the stator assembly 31R and includes a rotating shaft 321R, an inner ring 331R of the elastic member 33R is tightly wound around the rotating shaft 321R for linkage, an outer end 333R of the elastic member 33R is inserted and fixed to the stator assembly 31R in a rotating direction of the rotor assembly 32R, and when the rotating shaft 321R rotates, the elastic member 33R is linked by the rotating shaft 321R to generate an elastic deformation moment, so that the 321R is maintained by the rotating shaft 33R within a certain rotating stroke for reciprocating motion.

Particularly, the rotating shaft 321R further includes a connecting column 3213R, wherein the connecting column 3213R is sleeved on the rotating shaft 321R and configured to limit the rotating shaft to move along an extending direction of the connecting column 3213R, and the inner ring 331R of the 33R is tightly wound around the connecting column 3213R to form a state in which the inner ring 331R of the 33R is linked with the rotating shaft 321R.

Further, the connection post 3213R is provided with a mounting groove 32131R, wherein the mounting groove 32131R is configured to accommodate the rotation shaft 321R and limit movement of the rotation shaft 321R in an extending direction of the mounting groove 3213R, so that when the connection post 3213R is sleeved on the rotation shaft 321R, the connection post 3213R and the rotation shaft 321R are not easily separated from each other, thereby ensuring stability of the elastic element 33R linked to the rotation shaft 321R by the connection post 3213R.

It can be understood that, when the reciprocating motor 30R is implemented as a thin shaft motor, that is, when the diameter of the elastic member 321R is set to be small, the elastic member 33R hardly forms a stable fixed connection with the elastic member 321R, and therefore, the connection post 3213R is provided at the rotation shaft 321R so that the inner ring 331 of the elastic member 33R is press-fitted and fixed to the connection post 3213R, thereby facilitating a state in which the inner ring 331 forming the elastic member 33R is interlocked with the rotation shaft 321R. Alternatively, it can be understood that, in order to satisfy the requirement that the initial inner diameter of the inner ring 331R of the elastic member 33R is smaller than the diameter of the rotating shaft 321R, the connecting post 3213R is provided on the rotating shaft 321R.

It should be noted that the connection post 3213R may be disposed at any end of the rotation shaft 321R, and correspondingly, the elastic element 33R may also be disposed at any end of the rotation shaft 321R, which is not limited in the present invention.

It should be noted that the outer end 333R of the elastic element 33R may be fixed to the stator set 31R by inserting an outer pin and a socket, or fixed to the stator set 31R by inserting an outer ring and a fixing post, but the invention is not limited to this, and preferably, in this preferred embodiment, the outer end 333R of the elastic element 33R is provided with an outer pin 333R, and the stator set 31R is provided with a socket 312R, wherein the outer pin 333R is inserted into the socket 312R to form a state that the outer end 333R of the elastic element 33R is fixed to the stator set 31R.

It should be understood that, in this preferred embodiment, the reciprocating motor 30R of this preferred embodiment has the same structure as the motor 30 of the first preferred embodiment except for the manner and position in which the elastic member 33R is mounted to the rotation shaft 321R.

As shown in fig. 29, a reciprocating motor 30S according to a fifth preferred embodiment, wherein the reciprocating motor 30S includes a stator assembly 31S, a rotor assembly 32S and at least one elastic member 33S, wherein the rotor assembly 32S is rotatably disposed on the stator assembly 31S and includes a rotating shaft 321S, an inner ring 331S of the elastic member 33S is tightly wound around the rotating shaft 321S to be linked, an outer end 333S of the elastic member 33S is inserted and fixed to the stator assembly 31S in a rotating direction of the rotor assembly 32S, and when the rotating shaft 321S rotates, the elastic member 33S is linked by the rotating shaft 321S to generate an elastic deformation moment, so that the 321S is maintained by the rotating shaft 321S to perform a reciprocating motion within a certain rotating stroke.

Specifically, the inner ring 331S of the elastic member 33S is initially set to have a smaller inner diameter than the rotating shaft 321S, so that the inner ring 331S can be tightly wound and fixed to the rotating shaft 321S in a press-fit manner.

It should be noted that the outer end 333S of the elastic element 33S may be fixed to the stator assembly 31S by inserting an outer pin and an insertion hole, or may be fixed to the stator assembly 31S by inserting an outer ring and a fixing post, which is not limited in the present invention. Preferably, in the preferred embodiment, the outer end 333S of the elastic member 33 is provided as an outer pin 333S, and the stator pack 31S is provided with a socket 312S, wherein the outer pin 333S is inserted into the socket 312S.

Specifically, the stator assembly 31S includes a housing 313S and a fixing frame 315S fixedly connected to the housing 313S, wherein the insertion hole 312S is disposed on the fixing frame 315S, and the outer pin 312S of the elastic element 33S is inserted into the fixing frame 315S to form a state that the outer end 333S of the elastic element 33S is fixed to the stator assembly 31S.

It should be understood that, in the present embodiment, the other structure of the stator assembly 31S is the same as that of the first preferred embodiment 30 except that the position where the elastic member 33S is mounted to the stator assembly 31S and the rotating shaft 321S is different from that of the stator assembly 31S.

Referring to fig. 30 of the drawings, there is shown an electric toothbrush 100 according to a first preferred embodiment, wherein the electric toothbrush 100 includes the reciprocating motor 30, a power supply unit 60, and a head member 50, wherein the reciprocating motor 30 is electrically connected to the power supply unit 60, wherein the head member 50 is coupled to the reciprocating motor 30, and wherein when the reciprocating motor 30 is reciprocated by the power supply unit 60, the head member 50 is driven by the reciprocating motor 30 in a coupled manner to vibrate, thereby achieving an electric tooth-making effect.

Further, the sealing member 100 includes a sealing member 40, wherein the sealing member 40 is disposed between the motors 30 and 50 for sealing the elastic member 33 covering the reciprocating motor 30, thereby preventing water from entering the reciprocating motor 30.

Wherein 50 is linked to the shaft 321, and when 321 makes a reciprocating motion, the drive 50 generates vibration.

In addition, the sealing member 40 is provided with a through hole 421 adapted to be penetrated by the rotating shaft 321, wherein the rotating shaft 321 is coupled to the brush head member 50 through the through hole 421.

It is to be understood that, according to the different shapes of the elastic member 33 of the reciprocating motor 30, wherein the shape of the sealing member 40 is correspondingly different, in this preferred embodiment of the present invention, further wherein the sealing member 40 has an annular bottom portion 41 and a top portion 42 extending from the annular bottom portion 41, wherein the top portion 42 is configured and adapted to receive the elastic member 33 of the reciprocating motor 30 so that the sealing member 40 sealingly covers the elastic member 33.

That is, when the elastic member 33 is configured as a flat coil spring, the height of the top portion 42 of the sealing member 40 is relatively small, i.e., slightly larger than the entire size of the elastic member 33 so that the sealing member 40 can completely cover and seal the elastic member 33. It is worth mentioning that the through holes 421 are provided in the top portion 42.

It should be understood that the height and width of the top portion 42 are set to be greater than those of the elastic member 33, whereby the elastic member 33 can be completely covered and sealed by the cap 40, thereby securing the waterproof performance of the electric toothbrush 100.

Further, the electric toothbrush further includes a control unit 70 electrically connected to the power supply device 60 and a switch assembly 80 operatively connected to the control unit 70, wherein the control unit 70 is configured to control the current output of the power supply device 60 to the reciprocating motor 30 in response to a driven signal of the switch assembly 80.

Preferably, the power supply device 60 can be implemented as a rechargeable battery, and the control unit 70 can be implemented as a circuit board for controlling the current output of the power supply device 60.

Further, the electric toothbrush 100 further comprises a housing 90, wherein 30, 40, 60 and 70 are disposed in the housing 90, wherein 50 comprises a connecting member 51 and a brush head 52, wherein one end of 51 is connected to the housing 90 in a manner of covering the sealing member 40, and the other end of 51 is fixedly connected to the brush head 52, thereby forming the electric toothbrush 100.

There are two main designs for the assembly relationship between the motor and the bracket (for mounting the battery and the circuit board) in the electric toothbrush product of the present invention: fig. 31 and 32 are schematic views of the assembly relationship between the two brackets and the motor bottom cover, respectively.

In fig. 31, the middle portion 315 of the bottom cover 314 of the motor is shaped as a solid core of a T, and the middle portion 910 of the front end of the bracket 91 is shaped as a hollow core of a T. When the bracket 91 and the bottom cover 314 are assembled (fastened) to each other, the two parts of the motor 314 and the bracket 910 are assembled and fixed to each other, as shown in 913.

In fig. 32, four circular holes 316 are symmetrically distributed around the bottom cover 314 of the motor, and the front end of the bracket 92 is shaped as two cylinders 920, the diameter of the cylinders is the same as the diameter of the circular holes 316 of the bottom cover. When the support 920 and the bottom cover 316 are assembled with each other (the cylinder is inserted into the circular hole), the two parts of the motor 314 and the support 92 can be assembled and fixed with each other, and the specific assembly result is shown in the diagram 923.

Meanwhile, in order to reduce the influence of the mechanical vibration generated by the motor during operation on the use of the toothbrush, the invention pastes a material (such as foam) with a shock absorption function on the surface of the motor shell, and the specific structure is shown in figure 44.

It can be understood that, in a practical application, the elastic member can be directly assembled on a conventional rotating electric machine by the manufacturing method of the reciprocating electric machine, so as to facilitate the practical production of the reciprocating electric machine, wherein the reciprocating electric machine having stable performance, simple structure, small volume and long service life can be manufactured by the manufacturing method of the reciprocating electric machine.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.