阅读说明：本技术 振动马达 (Vibration motor ) 是由 张雨晴 高志明 高文花 王晓萌 高全祥 于 2021-07-19 设计创作，主要内容包括：本发明公开一种振动马达,所述振动马达包括壳体、外振子、第一定子及第二定子；其中,所述壳体具有相交的第一方向和第二方向；所述外振子沿所述第一方向可振动地安装于所述壳体内,所述外振子包括振壳、内振子及外振磁组；所述内振子沿所述第二方向可振动地设置在所述振壳内,所述内振子包括配重块和固定在所述配重块一端的内振磁组；所述外振磁组固定在所述配重块的另一端；所述第一定子设在壳体内,并与所述外振磁组相对应；所述第二定子设在壳体内,并与所述内振磁组相对应。本发明的振动马达能够实现双向振动,以提高振动马达的使用体验。(The invention discloses a vibration motor, which comprises a shell, an outer vibrator, a first stator and a second stator, wherein the outer vibrator is arranged on the shell; wherein the housing has a first direction and a second direction that intersect; the outer vibrator is arranged in the shell in a vibrating mode along the first direction, and comprises a vibrating shell, an inner vibrator and an outer vibrating magnetic group; the inner vibrator is arranged in the vibration shell in a vibratile manner along the second direction, and comprises a balancing weight and an inner vibration magnetic group fixed at one end of the balancing weight; the external vibration magnetic group is fixed at the other end of the balancing weight; the first stator is arranged in the shell and corresponds to the external vibration magnetic group; the second stator is arranged in the shell and corresponds to the internal vibration magnetic group. The vibration motor can realize bidirectional vibration so as to improve the use experience of the vibration motor.)

1. A vibration motor, characterized in that the vibration motor comprises:

a housing having a first direction and a second direction that intersect;

the outer vibrator is arranged in the shell in a vibrating mode along the first direction and comprises a vibrating shell, an inner vibrator and an outer vibrating magnet group; the inner vibrator is arranged in the vibration shell in a vibratile manner along the second direction, and comprises a balancing weight and an inner vibration magnetic group fixed at one end of the balancing weight; the external vibration magnetic group is fixed at the other end of the balancing weight;

the first stator is arranged in the shell and corresponds to the external vibration magnetic group; and

and the second stator is arranged in the shell and corresponds to the internal vibration magnetic group.

2. The vibration motor of claim 1, further comprising at least two outer elastic members respectively disposed at opposite sides of the outer vibrator in the first direction, each of the outer elastic members connecting a vibration case of the outer vibrator and the housing to suspend the outer vibrator within the housing.

3. A vibration motor as claimed in claim 2, wherein said at least two outer elastic members are outer elastic pieces; one of the outer elastic sheets is connected with one end of the outer vibrator, and the other end of the outer elastic sheet is tilted towards the direction departing from the outer vibrator and is connected with the shell; the other outer elastic sheet is connected with the other end of the outer vibrator, and the other end of the outer elastic sheet is tilted towards the direction departing from the outer vibrator and is connected with the shell.

4. A vibration motor according to claim 3, wherein the length of the outer spring is greater than that of the outer vibrator so that one end of the outer spring connected to the housing may extend to one side of the first stator or the second stator.

5. The vibration motor according to any one of claims 1 to 4, wherein the outer vibrator further comprises at least two inner elastic members respectively disposed at opposite sides of the weight block in the second direction, each of the inner elastic members connecting the vibration shell and the weight block to suspend the weight block within the vibration shell.

6. A vibratory motor as set forth in claim 5 wherein said at least two inner resilient members are inner resilient tabs; one of the inner elastic sheets is connected with one end of the balancing weight, and the other end of the inner elastic sheet is tilted towards the direction departing from the balancing weight and is connected with the vibration shell; the other inner elastic sheet is connected with the other end of the balancing weight, and the other end of the inner elastic sheet tilts towards the direction deviating from the balancing weight and is connected with the vibration shell.

7. A vibration motor as claimed in any one of claims 1 to 4, wherein said weight member is provided in a rectangular parallelepiped shape, a width direction of said weight member is the same as said first direction, and a height direction of said weight member is the same as said second direction.

8. A vibration motor according to any one of claims 1 to 4, wherein said first stator comprises a first core and a first coil wound around a circumference of said first core; and/or the second stator comprises a second iron core and a second coil surrounding the second iron core.

9. A vibration motor as claimed in any one of claims 1 to 4, wherein said housing comprises a main case and two case cover plates; wherein the main shell is communicated along the second direction to form two openings; the two shell cover plates are used for covering the two openings of the main shell respectively.

10. A vibration motor according to any one of claims 1 to 4, wherein said internal vibrating magnet group includes at least two magnets, and the magnets of said internal vibrating magnet group are arranged in said second direction; and/or the external magnetic vibration group comprises at least two magnets, and the magnets of the external magnetic vibration group are arranged along the first direction.

Technical Field

The present invention relates to electronic devices, and particularly to a vibration motor.

Background

With the development of technology, various electronic devices are used in the work and life of people. These electronic devices are usually configured with a vibration motor inside to conduct system vibration by using the vibration motor. However, the conventional vibration motor can only vibrate in a single direction, which makes the vibration direction single, and the use experience of the conventional vibration motor is poor.

Disclosure of Invention

The invention mainly aims to provide a vibration motor, aiming at realizing bidirectional vibration of the vibration motor so as to improve the use experience of the vibration motor.

In order to achieve the above object, the present invention provides a vibration motor, which includes a housing, an outer vibrator, a first stator, and a second stator; wherein the housing has a first direction and a second direction that intersect; the outer vibrator is arranged in the shell in a vibrating mode along the first direction, and comprises a vibrating shell, an inner vibrator and an outer vibrating magnetic group; the inner vibrator is arranged in the vibration shell in a vibratile manner along the second direction, and comprises a balancing weight and an inner vibration magnetic group fixed at one end of the balancing weight; the external vibration magnetic group is fixed at the other end of the balancing weight; the first stator is arranged in the shell and corresponds to the external vibration magnetic group; the second stator is arranged in the shell and corresponds to the internal vibration magnetic group.

Optionally, the vibration motor further includes at least two external elastic members, the at least two external elastic members are respectively disposed on two opposite sides of the external vibrator in the first direction, and each of the external elastic members is connected to the vibration shell of the external vibrator and the housing to suspend the external vibrator in the housing.

Optionally, the at least two outer elastic pieces are outer elastic pieces; one of the outer elastic sheets is connected with one end of the outer vibrator, and the other end of the outer elastic sheet is tilted towards the direction departing from the outer vibrator and is connected with the shell; the other outer elastic sheet is connected with the other end of the outer vibrator, and the other end of the outer elastic sheet is tilted towards the direction departing from the outer vibrator and is connected with the shell.

Optionally, the length of the outer spring is greater than that of the outer vibrator, so that one end of the outer spring connected with the housing may extend to one side of the first stator or the second stator.

Optionally, the outer vibrator further includes at least two inner elastic members, the at least two inner elastic members are respectively disposed on two opposite sides of the weight block located in the second direction, and each of the inner elastic members is connected to the vibration shell and the weight block to suspend the weight block in the vibration shell.

Optionally, the at least two inner elastic pieces are inner elastic pieces; one of the inner elastic sheets is connected with one end of the balancing weight, and the other end of the inner elastic sheet is tilted towards the direction departing from the balancing weight and is connected with the vibration shell; the other inner elastic sheet is connected with the other end of the balancing weight, and the other end of the inner elastic sheet tilts towards the direction deviating from the balancing weight and is connected with the vibration shell.

Optionally, the weight block is disposed in a rectangular parallelepiped shape, a width direction of the weight block is the same as the first direction, and a height direction of the weight block is the same as the second direction.

Optionally, the first stator comprises a first iron core and a first coil surrounding the first iron core; and/or the second stator comprises a second iron core and a second coil surrounding the second iron core.

Optionally, the housing comprises a main shell and two shell cover plates; wherein the main shell is communicated along the second direction to form two openings; the two shell cover plates are used for covering the two openings of the main shell respectively.

Optionally, the internal vibrating magnet group comprises at least two magnets, and the magnets of the internal vibrating magnet group are arranged along the second direction; and/or the external magnetic vibration group comprises at least two magnets, and the magnets of the external magnetic vibration group are arranged along the first direction.

According to the technical scheme, an outer vibrator, a first stator and a second stator are arranged in a shell of a vibration motor; the outer vibrator is arranged in the shell in a vibrating manner along the first direction and comprises a vibrating shell, an inner vibrator and an outer vibrating magnetic group; the inner vibrator is arranged in the vibration shell in a vibratile manner along the second direction, and comprises a balancing weight and an inner vibration magnetic group fixed at one end of the balancing weight; the external vibration magnetic group is fixed at the other end of the balancing weight; the first stator is arranged in the shell and corresponds to the external vibration magnetic group of the external vibrator so as to be matched with the external vibrator to drive the vibration motor to vibrate along a first direction; the second stator is arranged in the shell and corresponds to the internal vibration magnetic group of the internal vibrator so as to be matched with the internal vibrator to drive the vibration motor to vibrate along the second direction (see the description below specifically), so that the vibration motor can vibrate in a double-frequency and double-direction mode, and the use experience of the vibration motor is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the vibration motor according to the present invention;

FIG. 2 is a schematic view of the vibration motor of FIG. 1 in a first direction;

FIG. 3 is a schematic view of the vibration motor of FIG. 1 along a second direction;

FIG. 4 is a schematic view of the vibration motor of FIG. 2 with the housing removed;

fig. 5 is a schematic structural view of the vibration motor of fig. 4 with the outer elastic member and the vibration case removed.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Shell body	310	Outer elastic piece/outer shrapnel
110	Shell main body	320	Inner elastic piece/inner spring sheet
				120	Shell cover plate	410	First stator
200	External vibrator	411	First iron core
				210	Vibrating shell	412	First coil
220	Internal vibrator	420	Second stator
				221	Balancing weight	421	Second iron core
222	Internal vibration magnetic group	422	Second coil
				230	External vibration magnetic group

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", "inner", "outer", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," "inner," "outer" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the vibration motor of the present invention, the vibration motor includes a housing 110, an outer vibrator 200, a first stator 410, and a second stator 420. Wherein the housing 110 has a first direction and a second direction that intersect; the outer vibrator 200 is vibratably installed in the housing 110 along the first direction, and the outer vibrator 200 includes a vibrating shell 210, an inner vibrator 220, and an outer vibrating magnet assembly 230; the inner vibrator 220 is vibratably arranged in the vibrating shell 210 along the second direction, and the inner vibrator 220 comprises a balancing weight 221 and an inner vibrating magnet group 222 fixed at one end of the balancing weight 221; the external vibration magnetic group 230 is fixed at the other end of the balancing weight 221; the first stator 410 is arranged in the shell 110 and corresponds to the external magnetic vibration group 230; the second stator 420 is disposed in the housing 110 and corresponds to the inner vibrating magnet assembly 222.

Specifically, the outer vibrator 200 is vibratably mounted in the housing 110 in its entirety in the first direction. The outer vibrator 200 and the first stator 410 constitute a first driving assembly that drives the vibration motor to vibrate in the first direction. The inner vibrator 220 is mounted in the vibration case 210 of the outer vibrator 200 to be vibratable in the second direction as a whole. The inner vibrator 220 and the second stator 420 constitute a second driving assembly that drives the vibration motor to vibrate in the second direction. The first drive assembly and the second drive assembly are adapted to operate at different frequencies. For example, assume that the first drive assembly has an operating frequency P₁The working frequency of the second driving component is P₂，P₂And P₁Are not identical.

Referring to fig. 2, when the frequency input to the vibration motor is P₁When the first driving assembly is operated, the first stator 410 and the outer vibrating magnet assembly 230 of the outer vibrator 200 are induced to generate a magnetic field along a first directionAmpere force (as shown in the front-to-back direction in fig. 2); the outer vibrator 200 vibrates in the first direction by the ampere force, and the vibration of the outer vibrator 200 is transmitted to the case 110 of the vibration motor, thereby vibrating the vibration motor in the first direction.

Referring to fig. 3, when the frequency input to the vibration motor is P₂When the second driving assembly is operated, the second stator 420 and the inner vibrating magnet set 222 of the inner vibrator 220 are induced to generate an ampere force along a second direction (as shown in the up-down direction in fig. 3); the internal vibrator 220 vibrates along the second direction under the action of the ampere force, the vibration of the internal vibrator 220 is firstly transmitted to the vibration shell 210, so that the vibration shell 210 also vibrates in the same direction, and then the vibration of the vibration shell 210 is transmitted to the shell 110 of the vibration motor, so that the vibration motor can vibrate along the second direction integrally.

That is, when the frequency of the input of the vibration motor is the same as the operating frequency of any one of the driving components, the corresponding driving component operates to cause the vibration motor to vibrate in a corresponding direction. It can be understood that the outer vibrator 200 includes the inner vibrator 220, that is, the outer vibrator 200 and the inner vibrator 220 share one weight block 221, so that the vibration motor can vibrate in two different directions, namely the first direction and the second direction, thus the vibration space of the vibration motor can be fully utilized, the two-way vibration is realized, and further the driving force obtained by the vibration motor is large, the stability is higher, and the magnetic leakage rate of the product is lower.

As for the specific orientations of the first direction and the second direction of the vibration motor, the design may be made according to the specific shape and structure of the vibration motor. Alternatively, the vibration motor as a whole may be provided in a square or rectangular parallelepiped structure; or, the whole vibration motor can be arranged in a similar cube structure or a similar cuboid structure. The cuboid-like structure refers to the characteristics of length, width and height of a basic cuboid structure, but one or more planes are not planes, but cambered surfaces or folded surfaces; alternatively, the angle between the surfaces may be other than 90 °.

Specifically, the vibration motor is integrally configured as a rectangular parallelepiped structure. The vibration motor has a width direction, a length direction, and a height direction. As shown in fig. 1, the left-right direction is represented as a length direction of the vibration motor; the vertical direction is the height direction of the vibration motor; the front-rear direction is represented as a width direction of the vibration motor. The second direction and the first direction may be any two directions selected from an up-down direction, a left-right direction, and a front-back direction. In the above-described embodiments and the following embodiments, the first direction is mainly used as the front-back direction, and the second direction is mainly used as the up-down direction.

In the technical scheme of the invention, an outer vibrator 200, a first stator 410 and a second stator 420 are arranged in a shell 110 of a vibration motor; the outer vibrator 200 is vibratably mounted in the housing 110 along the first direction, and the outer vibrator 200 includes a vibrating shell 210, an inner vibrator 220, and an outer vibrating magnet assembly 230; the inner vibrator 220 is vibratably arranged in the vibrating shell 210 along the second direction, and the inner vibrator 220 comprises a balancing weight 221 and an inner vibrating magnet group 222 fixed at one end of the balancing weight 221; the external vibration magnetic group 230 is fixed at the other end of the balancing weight 221; the first stator 410 is arranged in the housing 110 and corresponds to the external vibrating magnet group 230 of the external vibrator 200 so as to cooperate with the external vibrator 200 to drive the vibration motor to vibrate along a first direction; the second stator 420 is disposed in the housing 110 and corresponds to the inner vibrating magnet set 222 of the inner vibrator 220, so as to cooperate with the inner vibrator 220 to drive the vibration motor to vibrate along the second direction (see the above description specifically), thereby achieving the dual-frequency and bi-directional vibration of the vibration motor, and effectively improving the use experience of the vibration motor.

Referring to fig. 1, 2 and 4, in an embodiment, the vibration motor further includes at least two outer elastic members 310, the at least two outer elastic members 310 are respectively disposed on two opposite sides of the outer vibrator 200 in the first direction, and each outer elastic member 310 is connected to the vibration shell 210 of the outer vibrator 200 and the housing 110 to suspend the outer vibrator 200 in the housing 110. As such, when the outer vibrator 200 vibrates in the first direction, the outer elastic member 310 is elastically deformed by the force between the outer vibrator 200 and the case 110, thereby providing the outer vibrator 200 with an elastic force that is linearly guided and returns to the equilibrium position, so that the outer vibrator 200 can continuously vibrate.

As for the structure of the outer elastic member 310, the outer elastic member 310 should be an elastic structure capable of undergoing resilient elastic deformation. The outer elastic member 310 may be, but is not limited to, a spring, etc. Optionally, in this embodiment, the at least two outer elastic members 310 are outer elastic pieces 310; one of the outer spring plates 310 is connected with one end of the outer vibrator 200, and the other end thereof is tilted in a direction away from the outer vibrator 200 and connected with the shell 110; the other outer elastic piece 310 is connected to the other end of the outer vibrator 200, and the other end thereof is tilted in a direction away from the outer vibrator 200 and connected to the housing 110.

Specifically, the vibrating shell 210 has two first sidewalls opposite to each other in the first direction, and the two first sidewalls are spaced from an inner wall surface of the housing 110 to form the first gap. The two outer spring plates 310 are respectively arranged in the two first gaps. Moreover, one of the outer elastic pieces 310 is connected to the left end of one of the first sidewalls of the vibration shell 210, and the other end of the outer elastic piece 310 is tilted to be connected to the housing 110; the other outer elastic sheet 310 is connected to the right end of the other first sidewall of the vibration shell 210, and the other end of the outer elastic sheet 310 is tilted to be connected to the housing 110. Thus, it is ensured that the outer spring 310 can stably support the outer vibrator 200, so that the outer vibrator 200 can stably vibrate and return to the equilibrium position. In this process, since the outer spring 310 has a high rigidity in the first direction, the outer spring 310 only plays a role of transmitting vibration to the case 110 of the vibration motor during the vibration of the inner vibrator 220, and is not substantially elastically deformed.

The length of the outer spring 310 may be the same as that of the outer vibrator 200, or may be slightly greater than that of the outer vibrator 200. Here, optionally, the length of the outer spring 310 is set to be greater than that of the outer vibrator 200, so that one end of the outer spring 310 connected to the housing 110 may extend to one side of the first stator 410 or the second stator 420. That is, the outer spring 310 located at the front side of the outer vibrator 200, one end of which connected to the housing 110 is located between the second stator 420 and the inner wall surface of the housing 110; and the end of the outer spring 310 located at the rear side of the outer vibrator 200, which is connected to the housing 110, is located between the second stator 420 and the inner wall surface of the housing 110. By the design, the stability of the outer vibrator can be improved; in addition, the first stator 410 and the second stator 420 are prevented from colliding with the housing 110 during the vibration process of the vibration motor, and the first stator 410 and the second stator 420 are protected from being damaged by collision.

Referring to fig. 1, 3 and 5, in an embodiment, the external vibrator further includes at least two internal elastic members 320, the at least two internal elastic members 320 are respectively disposed on two opposite sides of the weight block 221 in the second direction, and each internal elastic member 320 is connected to the vibration shell 210 and the weight block 221 to suspend the weight block 221 in the vibration shell 210. In this way, when the inner vibrator 220 vibrates in the second direction, the inner elastic member 320 is elastically deformed by the force between the inner vibrator 220 and the vibrating case 210, thereby providing an elastic force for the inner vibrator 220 to linearly guide and return to the equilibrium position, so that the inner vibrator 220 can continuously vibrate.

As for the structure of the inner elastic member 320, the inner elastic member 320 should be an elastic structure capable of resilient elastic deformation. The inner elastic member 320 may be, but is not limited to, a spring, etc. Optionally, in this embodiment, the at least two inner elastic members 320 are inner elastic pieces; one of the inner resilient pieces is connected to one end of the weight block 221, and the other end of the inner resilient piece is tilted in a direction away from the weight block 221 and connected to the vibration shell 210; the other inner spring is connected to the other end of the weight block 221, and the other end of the inner spring is tilted in a direction away from the weight block 221 and connected to the vibration shell 210.

Specifically, the vibrating shell 210 has two second sidewalls opposite to each other along the second direction, and the two second sidewalls are spaced from the weight block 221 to form a second gap. The two inner elastic sheets are respectively arranged in the two second gaps. One of the inner elastic pieces is connected to the left end of the weight block 221, and the other end of the inner elastic piece is tilted to connect to one of the second sidewalls of the vibration shell 210; the other inner spring is connected to the other end of the configuration block, and the other end of the inner spring is tilted to connect to the other second sidewall of the vibration shell 210. Thus, it is ensured that the inner elastic sheet can stably support the inner vibrator 220, so that the inner vibrator 220 can stably vibrate and return to the equilibrium position.

It should be noted that when the inner vibrator 220 vibrates along the second direction under the action of the ampere force generated by the second stator 420 and the inner vibration magnetic group 222, the vibration of the inner vibrator 220 vibrates repeatedly under the action of the elastic deformation of the inner elastic sheet, and simultaneously the vibration is transmitted to the vibration shell 210 through the inner elastic sheet, so that the vibration shell 210 vibrates in the same direction; the vibration of the vibration shell 210 is further transmitted to the housing 110 of the vibration motor through the outer spring 310, so that the vibration motor as a whole vibrates in the first direction. In this process, since the outer spring 310 has a relatively high rigidity in the first direction, the outer spring 310 only plays a role of transmitting vibration to the housing 110 of the vibration motor during the vibration of the inner vibrator 220, and is not substantially elastically deformed in the second direction. As can be seen, the outer spring plate 310 not only can provide linear guidance for the outer vibrator and provide a spring force for returning to the equilibrium position when the vibration motor vibrates along the first direction; it is also possible to function to transmit the vibration when the vibration motor vibrates in the second direction. By the design, the stability of the vibration motor can be greatly improved.

When the external vibrator 200 vibrates in the first direction under the action of the ampere force generated by the first stator 410 and the external vibration magnet assembly 230, the vibration of the external vibrator 200 is repeatedly vibrated by the elastic deformation of the external spring 310, and the vibration is directly transmitted to the case 110 of the vibration motor through the external spring 310, so that the vibration motor is integrally vibrated in the first direction. In this process, since the inner spring has a high rigidity in the first direction, the inner spring is not elastically deformed in the first direction during the vibration of the outer vibrator 200.

Referring to fig. 5, in an embodiment, the weight block 221 is disposed in a rectangular shape; the width direction of the weight member 221 is the same as the first direction, and the height direction of the weight member 221 is the same as the second direction. Specifically, the weight block 221 has two end surfaces in its length direction; the internal vibration magnetic group 222 and the external vibration magnetic group 230 are respectively fixed on two end surfaces of the balancing weight 221. The weight block 221 further has two long sides in its height direction; the at least two inner elastic members 320 are disposed on both long sides of the weight block 221. In this way, the vibration may be developed by the inner vibrator 220 in the height direction thereof and may be vibrated in the width direction by the outer vibrator 200.

According to any of the above embodiments, the first stator 410 includes the first core 411 and the first coil 412 surrounding the first core 411. The second stator 420 includes a second core 421 and a second coil 422 surrounding the second core 421. When a corresponding operating frequency is input to the first coil 412 of the first stator 410, the outer vibrator 200 may be vibrated in the first direction. When the corresponding operating frequency is input to the second coil 422 of the second stator 420, the inner vibrator 220 may be vibrated in the second direction.

In one embodiment, the inner vibrating magnet assembly 222 includes at least two magnets, and the magnets of the inner vibrating magnet assembly 222 are arranged along the second direction; and/or, the external magnetic vibration group 230 includes at least two magnets, and the magnets of the external magnetic vibration group 230 are arranged along the first direction.

Specifically, the first coil 412 of the first stator 410 is disposed in an elliptical shape, and the major axis of the first coil 412 extends in the second direction (i.e., the up-down direction in fig. 1); the magnets of the outer magnetic vibration group 230 are arranged at intervals along the first direction (i.e., the front-back direction in fig. 1), such that the long sides of the magnets of the outer magnetic vibration group 230 are perpendicular to the short axis direction of the first coil 412, and thus the magnetization direction of the outer magnetic vibration group 230 is perpendicular to the plane of the first stator 410. In this way, when the vibration motor inputs the corresponding operating frequency of the first stator 410, the first stator 410 and the outer vibrator group 230 induce an ampere force in the first direction to drive the outer vibrator 200 to vibrate in the first direction.

Similarly, the second coil 422 of the second stator 420 is disposed in an elliptical shape, and the long axis of the second coil 422 extends along the first direction (i.e., the front-back direction in fig. 1); the magnets of the internal vibrating magnet assembly 222 are arranged at intervals along the second direction (i.e., the up-down direction in fig. 1), such that the long side of the magnets of the internal vibrating magnet assembly 222 is perpendicular to the short axis direction of the second coil 422, and thus the magnetizing direction of the internal vibrating magnet assembly 222 is perpendicular to the plane of the second stator 420. In this way, when the vibration motor inputs the corresponding working frequency of the second stator 420, the second stator 420 and the inner vibrator group 222 induce an ampere force in the second direction to drive the inner vibrator 220 to vibrate in the second direction.

According to any of the above embodiments, the housing 110 includes a main housing 110 and two housing cover plates 120; wherein, the main casing 110 is penetrated along the second direction to form two openings; the two cover plates 120 are respectively used for covering two openings of the main housing 110. When the vibration motor is assembled, the outer vibrator 200, the first stator 410 and the second stator 420 may be installed in the main case 110 from the openings of the main case 110, then the two cover plates 120 cover the two openings of the main case 110, and finally the cover plates 120 are fixedly connected to the main case 110.

The cover plate 120 may be fixedly connected to the main housing 110 by various connecting methods. For example, the case cover plate 120 is fixed to the main case 110 by welding; for another example, the housing cover plate 120 and the main housing 110 are provided with a snap structure that is engaged with each other, so that the housing cover plate 120 and the main housing 110 are connected and fixed by the snap structure; for another example, the cover plate 120 may be adhesively fixed to the main housing 110 by using an adhesive material. Of course, in other embodiments, the shell cover plate 120 and the main shell 110 may be fixed by screws. The design can be reasonably designed according to actual production requirements, and no limitation is set herein.

Based on any one of the above embodiments, the vibration motor may be applied to an electronic device, and the electronic device may be a mobile phone, a tablet computer, a handheld game console, a handheld multimedia entertainment device, and the like.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.