阅读说明：本技术 一种振动电机及电动牙刷 (Vibrating motor and electric toothbrush ) 是由 毛伟 欧阳学 于 2019-08-06 设计创作，主要内容包括：本发明公开了一种振动电机及电动牙刷,包括：壳体、主轴、第一振动组件以及第二振动组件,壳体具有一内腔；主轴可活动安装在内腔内,具体地,主轴可相对内腔转动,也可相对内腔沿主轴轴向滑动；第一振动组件设置在主轴上,第一振动组件可使主轴沿径向往复移动；第二振动组件设置在主轴上,第二振动组件可使主轴沿轴线往复转动。本实施例中,通过第一振动组件可以使主轴横向振动,通过第二振动组件可以使主轴纵向振动,相较现有振动电机,本实施例的电机通过横向振动和纵向振动,综合横向振动和纵向振动可使主轴呈W型振动,振动的效果更佳。(The invention discloses a vibration motor and an electric toothbrush, comprising: the vibration device comprises a shell, a main shaft, a first vibration component and a second vibration component, wherein the shell is provided with an inner cavity; the main shaft can be movably arranged in the inner cavity, and specifically, the main shaft can rotate relative to the inner cavity and can also axially slide along the main shaft relative to the inner cavity; the first vibration assembly is arranged on the main shaft and can make the main shaft reciprocate along the radial direction; the second vibration assembly is arranged on the main shaft and can enable the main shaft to rotate in a reciprocating mode along the axis. In this embodiment, can make main shaft lateral vibration through first vibration subassembly, can make main shaft longitudinal vibration through the second vibration subassembly, compare current vibrating motor, the motor of this embodiment is through lateral vibration and longitudinal vibration, synthesizes lateral vibration and longitudinal vibration and can make the main shaft be W type vibration, and the effect of vibration is better.)

1. A vibration motor, comprising:

a housing (100) having an interior cavity;

a spindle (200) movably mounted within the internal cavity;

the first vibration assembly is arranged on the main shaft (200) and can enable the main shaft (200) to reciprocate along the radial direction;

and the second vibration assembly is arranged on the main shaft (200) and can enable the main shaft (200) to rotate back and forth along the axis.

2. The vibration motor of claim 1, wherein said first vibration assembly comprises:

a first magnetic member (301) provided on the spindle (200);

the first coil (302) is sleeved on the shell (100) and corresponds to the first magnetic part (301), and when the first coil (302) is electrified, the first magnetic part (301) can drive the spindle (200) to move towards a first direction along the axial direction of the spindle;

and the elastic piece (303) is respectively connected with the main shaft (200) and the shell (100) and can enable the main shaft (200) to move along the axial direction thereof to a second direction, wherein the first direction is opposite to the second direction.

3. A vibration motor according to claim 2, wherein said first magnetic member (301) is fitted over said main shaft (200); the elastic piece (303) is a spring, one end of the spring abuts against the spindle (200), the other end of the spring abuts against the shell (100), the spindle (200) is provided with a first limiting step (2001), and one end, close to the spring, of the first magnetic piece (301) abuts against the first limiting step (2001).

4. The vibration motor of claim 1, wherein said first vibration assembly comprises:

a first magnetic member (301) fixedly arranged on the spindle (200);

the first coil (302) is sleeved on the shell (100) and corresponds to the first magnetic piece (301), the first coil (302) is provided with a first positive wiring end and a first negative wiring end, and the first positive wiring end and the first negative wiring end can be respectively and alternately electrically connected with the positive electrode and the negative electrode of the power supply.

5. The vibration motor of claim 4, wherein said second vibration assembly comprises:

a second magnetic member (401) fixedly disposed on the spindle (200);

the two second coils (402) are oppositely arranged on two sides of the shell (100), the second magnetic piece (401) is located between the two second coils (402), each second coil (402) is provided with a second positive terminal and a second negative terminal, and the second positive terminal and the second negative terminal can be respectively and alternately electrically connected with the positive electrode and the negative electrode of the power supply.

6. A vibration motor according to claim 5, wherein said housing (100) is provided with coil supports (101) at opposite sides thereof, said second coil (402) is wound on said coil supports (101), said coil supports (101) have an insertion hole (1011) passing through said second coil (402), said insertion hole (1011) being inserted with said silicon steel sheet (403).

7. A vibration motor according to claim 1, further comprising a secondary shaft (500), wherein one end of the secondary shaft (500) extends into the housing (100) and is fixedly connected to one end of the primary shaft (200).

8. A vibration motor according to claim 1, wherein one end of said housing (100) has a fitting opening (1001), and said housing (100) is provided with a packing member for closing said fitting opening (1001).

9. The vibration motor of claim 8, wherein said packaging assembly comprises:

a cover (601) fitted to the fitting opening (1001);

the clamp spring (602), one end is fixed on the said cover (601), another end has a snap-fit part (6021);

and a clamping groove (603) matched with the clamping part (6021) is arranged at one end of the shell (100), and the clamping part (6021) is clamped and connected with the clamping groove (603).

10. An electric toothbrush comprising a vibration motor according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of motors, in particular to a vibration motor and an electric toothbrush.

Background

Compared with the common toothbrush, the electric toothbrush is more scientific and effective, can clean dental plaque more thoroughly, reduces gingivitis and gingival bleeding, and gradually becomes a cavity health-care appliance commonly used by modern people.

The existing electric toothbrush can only be mainly divided into a rotary type and a vibration type, the structure of the vibration type is more complex than that of the rotary type, the effect is better, the existing vibration type mainly adopts the vibration of the brush head driven by the motor, the output shaft of the existing vibration motor has a transverse swing type and a longitudinal swing type, but the existing vibration motor can only vibrate in one direction when cleaning teeth no matter the transverse swing type or the longitudinal swing type, the teeth cannot be cleaned comprehensively, and the effect is poor.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides a vibration motor and an electric toothbrush, which can vibrate transversely and longitudinally and have better cleaning effect.

According to a first aspect of the present invention, there is provided a vibration motor comprising:

a housing having an interior cavity;

the main shaft can be movably arranged in the inner cavity;

the first vibration assembly is arranged on the main shaft and can enable the main shaft to reciprocate along the radial direction;

and the second vibration assembly is arranged on the main shaft and can enable the main shaft to rotate in a reciprocating mode along the axis.

In this embodiment, can make through first vibration subassembly the main shaft lateral vibration, through second vibration subassembly can make main shaft longitudinal vibration, compare current vibrating motor, the multidirectional vibration of motor of this embodiment, the vibration effect is better.

A vibration motor according to a first aspect of the present invention, the first vibration assembly comprising:

the first magnetic piece is arranged on the main shaft;

the first coil is sleeved on the shell and corresponds to the first magnetic part, and when the first coil is electrified, the first magnetic part can drive the spindle to move towards a first direction along the axial direction of the spindle;

and the elastic piece is respectively connected with the main shaft and the shell and can enable the main shaft to move towards a second direction along the axial direction of the main shaft, and the first direction is opposite to the second direction.

According to a vibration motor of a first aspect of the present invention, the first magnetic member is fitted over the main shaft; the elastic piece is a spring, one end of the spring abuts against the spindle, the other end of the spring abuts against the shell, the spindle is provided with a first limiting step, and one end, close to the spring, of the first magnetic piece abuts against the first limiting step.

A vibration motor according to a first aspect of the present invention, the first vibration assembly comprising:

the first magnetic piece is fixedly arranged on the main shaft;

the first coil is sleeved on the position, corresponding to the first magnetic piece, on the shell and provided with a first positive wiring end and a first negative wiring end, and the first positive wiring end and the first negative wiring end can be respectively and alternately electrically connected with the positive electrode and the negative electrode of the power supply.

A vibration motor according to a first aspect of the present invention, the second vibration assembly comprising:

the second magnetic part is fixedly arranged on the main shaft;

the two second coils are oppositely arranged on two sides of the shell, the second magnetic piece is located between the two second coils, the second coils are provided with a second positive wiring end and a second negative wiring end, and the second positive wiring end and the second negative wiring end can be respectively and alternately electrically connected with the positive electrode and the negative electrode of the power supply.

According to a vibration motor of the first aspect of the present invention, coil brackets are respectively disposed on two opposite sides of the housing, the second coil is wound on the coil brackets, the coil brackets have insertion holes penetrating through the second coil, and silicon steel sheets are inserted into the insertion holes.

According to the first aspect of the present invention, the vibration motor further includes a secondary shaft, and one end of the secondary shaft extends into the housing and is fixedly connected to one end of the primary shaft.

According to a vibration motor of a first aspect of the present invention, one end of the housing has a fitting opening, and the housing is provided with a packing member for sealing the fitting opening.

A vibration motor according to a first aspect of the present invention, the package assembly includes:

a cover adapted to the fitting opening;

one end of the clamp spring is fixed on the sealing cover, and the other end of the clamp spring is provided with a clamping part;

and the clamping groove is matched with the clamping part and is arranged at one end of the shell, and the clamping part is clamped and connected with the clamping groove.

According to a second aspect of the present invention there is provided an electric toothbrush comprising a vibration motor as described in any one of the above embodiments.

In this embodiment, through first vibration subassembly can make main shaft lateral vibration, through the second vibration subassembly can make main shaft longitudinal vibration, compare current vibrating motor, the multidirectional vibration of motor of this embodiment, vibration effect is better, and the toothbrush of installing the motor in this embodiment is better to the cleaning effect of tooth.

Drawings

The invention is further explained below with reference to the figures and examples;

FIG. 1 is a schematic overall structure of one embodiment of the present invention;

FIG. 2 is an overall exploded view of one embodiment of the present invention;

FIG. 3 is a schematic diagram of the overall structure of one embodiment of the present invention after cutting;

fig. 4 is a partially enlarged view of fig. 3.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing the embodiments of the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention.

In the description of the embodiments of the present invention, several means are one or more, plural means are two or more, and greater than, less than, more than, etc. are understood as excluding the number, and greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the embodiments of the present invention, unless otherwise explicitly limited, terms such as setting, installing, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the embodiments of the present invention by combining the specific contents of the technical solutions.

Referring to fig. 1, a vibration motor in the present embodiment includes: the vibration device comprises a shell 100, a main shaft 200, a first vibration component and a second vibration component, wherein the shell 100 is provided with an inner cavity; the main shaft 200 can be movably installed in the inner cavity, specifically, the main shaft 200 can rotate relative to the inner cavity and can also slide along the axial direction of the main shaft 200 relative to the inner cavity; the first vibration assembly is arranged on the main shaft 200, and the first vibration assembly can make the main shaft 200 reciprocate along the radial direction; a second vibration assembly is provided on the main shaft 200, and the second vibration assembly can make the main shaft 200 rotate back and forth along the axis.

In this embodiment, can make main shaft 200 lateral vibration through first vibration subassembly, can make main shaft 200 longitudinal vibration through the second vibration subassembly, compare current vibrating motor, the motor of this embodiment is through lateral vibration and longitudinal vibration, synthesizes lateral vibration and longitudinal vibration and can make main shaft 200 be W type vibration, and the effect of vibration is better.

In some embodiments, as shown in fig. 2, the first vibration assembly includes: the first magnetic member 301 is disposed on the spindle 200, and the first magnetic member 301 may be fixed to the spindle 200, for example, fixed by a fixing pin or fixed by a limiting portion, or may slide in a short distance relative to the spindle 200 but cannot slide infinitely in the axial direction relative to the spindle 200; the first coil 302 is sleeved on the housing 100 at a position corresponding to the first magnetic member 301, that is, the first magnetic member 301 is inside the first coil 302, and electrically connects the first coil 302 with the power supply, when the first coil 302 is energized, the first magnetic member 301 can move along the axial direction of the spindle 200 toward the first direction, and further, the spindle 200 is driven to move along the axial direction thereof toward the first direction; the elastic member 303 is coupled to the spindle 200 and the housing 100, respectively, and allows the spindle 200 to move in a second direction along the axial direction thereof, the first direction being opposite to the second direction.

Specifically, the elastic member 303 is a spring, the first coil 302 is alternately energized and de-energized, preferably, direct current pulse power is energized, when the first coil 302 is energized with pulse power, the first magnetic member 301 receives an ampere force in a first direction, the first magnetic member 301 moves in the first direction, a force is applied to the elasticity during the movement to compress the spring, when the first coil 302 is de-energized, the first magnetic member 301 no longer receives the ampere force, but the spring has an elastic force in a second direction, so that the spindle 200 moves in the second direction, and the first coil 302 is alternately energized and de-energized to reciprocate the spindle 200 in the axial direction thereof. It should be noted that, the elastic element 303 may be a rigid elastic element 303, such as a spring, or a non-rigid elastic element 303, such as an elastic block or an elastic cord, when the elastic element 303 is a non-rigid elastic element 303, such as an elastic cord, when the first coil 302 is powered on, the first magnetic element 301 may stretch the elastic cord in the length direction in the first direction, and when the first coil 302 is powered off, the elastic cord has a contracted elastic force to further drive the spindle 200 to move in the second direction, so as to also achieve the reciprocating motion of the spindle 200 in the axial direction.

In some embodiments, as shown in fig. 2 and 4, the first magnetic member 301 is sleeved on the main shaft 200, the elastic member 303 is a spring, one end of the spring abuts against the main shaft 200, the other end of the spring abuts against the housing 100, the main shaft 200 has a first limit step 2001, and one end of the first magnetic member 301 close to the spring abuts against the first limit step 2001. The embodiment has compact and reasonable structure. Specifically, the embodiment further includes a bearing sleeve 800, the outer diameters of two ends of the bearing sleeve 800 are different and form a second limit step 8001, a bearing 700 is installed inside the end with the large outer diameter of the bearing sleeve 800, one end of the main shaft 200 is installed in the bearing 700, a spring sleeve is sleeved on the end with the small outer diameter of the bearing sleeve 800 and abuts against the second limit step 8001, one end of the housing 100 is provided with an annular protrusion, the spring sleeve is sleeved on the annular protrusion and abuts against the inner wall of the housing 100, and a movable gap 901 is left between the bearing sleeve 800 and the annular protrusion for the main shaft 200 to reciprocate axially.

In some embodiments, as shown in fig. 2 and 3, the first vibration assembly includes: a first magnetic member 301 and a first coil 302, wherein the first magnetic member 301 is fixedly arranged on the spindle 200; the first coil 302 is sleeved on the housing 100 at a position corresponding to the first magnetic member 301, and electrically connects the first coil 302 to the power supply, the first coil 302 has a first positive terminal and a first negative terminal, and the first positive terminal and the first negative terminal are respectively and alternately electrically connected to the positive and negative electrodes of the power supply. In this embodiment, when the first positive terminal is electrically connected to the positive electrode of the power supply, and the first negative terminal is electrically connected to the negative electrode of the power supply, the first magnetic member 301 receives an ampere force in the first direction, and since the main shaft 200 is fixedly connected to the first magnetic member 301, the first magnetic member 301 moves in the first direction to drive the main shaft 200 to move in the first direction, and when the first positive terminal is electrically connected to the negative electrode of the power supply, and the first negative terminal is electrically connected to the positive electrode of the power supply, the first magnetic member 301 receives an ampere force in the second direction, so that the first magnetic member 301 moves in the second direction to drive the main shaft 200 to move in the second direction, and the first positive terminal and the first negative terminal are respectively and alternately electrically connected to the positive electrode and the negative electrode of the power supply, so as to achieve the axial reciprocating motion of the main shaft 200. It should be noted that, the first positive terminal and the first negative terminal can be respectively and electrically connected to the positive electrode and the negative electrode of the power supply alternately through a conventional control circuit board on the market, and of course, the alternate connection between the positive electrode and the negative electrode of the power supply can also be realized through other conventional means, and preferably, the current output by the power supply is direct current pulse electricity.

In some embodiments, as shown in fig. 2 and 3, the second vibration assembly includes: a second magnetic part 401 and two second coils 402, the second magnetic part 401 is preferably a magnetic steel, and may be an electromagnet, of course, the second magnetic part 401 is fixedly disposed on the spindle 200; the two second coils 402 are oppositely arranged on two sides of the casing 100, the two second coils 402 are electrically connected with the power supply, the second magnetic member 401 is located between the two second coils 402, the second coils 402 are provided with a second positive terminal and a second negative terminal, and the second positive terminal and the second negative terminal are respectively and alternately electrically connected with the positive electrode and the negative electrode of the power supply. In this embodiment, an electromagnetic field with N-pole and S-pole can be generated by the two second coils 402 disposed opposite to each other, and the second magnetic member 401 is disposed between the two second coils 402, so that the second magnetic member 401 rotates in one direction by an ampere force, and the second magnetic member 401 is fixedly disposed on the main shaft 200, and further drives the main shaft 200 to rotate in one direction, and when the second positive terminal and the second negative terminal respectively exchange the positive and negative poles of the power source, the N-pole changes to the S-pole, and the S-pole changes to the N-pole, so that the second magnetic member 401 rotates in the opposite direction by the ampere force, and when the second positive terminal and the second negative terminal respectively alternate the positive and negative poles of the power source, the main shaft 200 can rotate back and forth along the axis thereof, and further realize the longitudinal vibration of the main shaft 200.

In some embodiments, as shown in fig. 2 and 3, the coil support 101 is disposed on two opposite sides of the housing 100, the second coil 402 is wound on the coil support 101, the coil support 101 has an insertion hole 1011 passing through the second coil 402, and the silicon steel sheet 403 is inserted into the insertion hole 1011. Specifically, the silicon steel sheet is arc-shaped, the radian is close to that of the shell 100, the inner side wall of the silicon steel sheet extends towards the arc center direction to form a plug board 4031, and the plug board 4031 is inserted into the jack 1011, so that the structure is reasonable. The ampere force of the second coil 402 to the second magnetic member 401 can be increased by adding the silicon steel sheet 403. The silicon steel can be other metal materials.

In some embodiments, as shown in fig. 2, a through hole 2002 is formed in the spindle 200, the second magnetic member 401 is installed in the through hole 2002, two openings of the through hole 2002 are respectively provided with a pig iron piece 404, the pig iron piece 404 is detachably installed on the spindle 200, the spindle 200 specifically has two protrusions 2003, the two protrusions 2003 are located at two sides of the openings, the pig iron piece 404 has a groove 4041 matched with the protrusion 2003, and the pig iron piece 404 can be detachably installed on the spindle 200 through matching of the protrusion 2003 and the groove 4041.

In some embodiments, as shown in fig. 2, 3 and 4, a secondary shaft 500 is further included, the secondary shaft 500 is used for mounting the toothbrush head, and one end of the secondary shaft 500 extends into the housing 100 and is fixedly connected with one end of the primary shaft 200. Specifically, one end of the housing 100 is provided with a through hole through which the auxiliary shaft 500 passes, the bearing sleeve 800 is hollow, one end of the main shaft 200 connected with the auxiliary shaft 500 is provided with a connecting hole, the connecting hole has a limiting surface, for example, two opposite planes are provided at the top and bottom, one end of the auxiliary shaft 500 is provided with an outer contour matched with an inner contour of the connecting hole, for example, two opposite planes are provided at the top and bottom, one end of the auxiliary shaft 500 is installed in the installation hole of the main shaft 200, so that the rotation of the auxiliary shaft 500 relative to the main shaft 200 can be limited, and of course, the main shaft 200 and the auxiliary shaft.

In some embodiments, as shown in fig. 1 and 3, one end of the housing 100 has a mounting port 1001, and the housing 100 is configured with a packing assembly for sealing the mounting port 1001. The main shaft 200, the sub shaft 500, the bearing housing 800, the bearing 700, the first magnetic member 301, the elastic member 303, and the like of the present embodiment are fitted into the fitting opening 1001. The vibration motor in this embodiment can be conveniently assembled through the assembly opening 1001, and the housing 100 is preferably integrally formed, and is convenient to produce and firm in structure.

In certain embodiments, as shown in fig. 1, 2, 3, a package assembly includes: the sealing cover 601, the clamp spring 602 and the clamping groove 603, wherein the sealing cover 601 is matched with the assembling port 1001; one end of the clamp spring 602 is fixed on the sealing cover 601, and the other end of the clamp spring 602 is provided with a clamping part 6021; the engaging portion 6021 is fitted into the engaging groove 603, the engaging groove 603 is provided at one end of the housing 100, and the engaging portion 6021 is engaged with the engaging groove 603. The assembly component of the embodiment is simple in structure and convenient to fix.

In some embodiments, as shown in fig. 2 and 3, the sealing cover 601 has an annular groove, a bearing 700 is installed in the annular groove, one end of the main shaft 200 away from the auxiliary shaft 500 is installed in the bearing 700, one end of the main shaft 200 away from the auxiliary shaft 500 is provided with a limiting hole 2005, a limiting block 6011 extends from the bottom surface of the annular groove in the axial direction, and the motor can be switched on and off by matching the limiting block 6011 with the limiting hole 2005; when the motor is in a working mode, the limiting block 6011 is not inserted into the limiting hole 2005, the main shaft 200 can rotate relative to the housing 100, and when the motor is in a closed state, the limiting block 6011 is inserted into the limiting hole 2005, so that the main shaft 200 can be limited to rotate, and a safety switch can be also achieved.

In certain embodiments, there is provided a power toothbrush comprising a vibration motor as in any one of the above embodiments.

In this embodiment, can make main shaft 200 lateral vibration through first vibration subassembly, can make main shaft 200 longitudinal vibration through the second vibration subassembly, compare current vibrating motor, the multidirectional vibration of motor of this embodiment, vibration effect is better, and the toothbrush of the motor of installation this embodiment is better to the clean effect of tooth.

While the preferred embodiments of the present invention have been illustrated and described, it will be appreciated that the invention may be embodied otherwise than as specifically described and that equivalent alterations and modifications, which may be effected thereto by those skilled in the art without departing from the spirit of the invention, are deemed to be within the scope and spirit of the invention.