CN110224571B - Vibration motor and mobile electronic equipment - Google Patents
Vibration motor and mobile electronic equipment Download PDFInfo
- Publication number
- CN110224571B CN110224571B CN201910474899.3A CN201910474899A CN110224571B CN 110224571 B CN110224571 B CN 110224571B CN 201910474899 A CN201910474899 A CN 201910474899A CN 110224571 B CN110224571 B CN 110224571B
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- coil
- vibrator assembly
- elastic
- driving force
- outer case
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- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 239000004945 silicone rubber Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/12—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a vibration motor and a mobile electronic device, comprising: an outer housing; a first coil and a second coil fixed on two opposite inner wall surfaces of the outer case; a vibrator assembly movably accommodated in the outer housing and positioned between the first coil and the second coil, the vibrator assembly including a weight portion and a magnet portion; and elastic bodies with two ends respectively elastically acting between the vibrator assembly and the outer shell. Through suspending the vibrator assembly between first coil and second coil, first coil and second coil pass through magnet portion and produce along the first drive power of first axis direction and the second drive power of second axis direction to the vibrator assembly, because the size and the direction of first drive power and second drive power can change along with the time, the resultant force effect of vibrator assembly under first drive power and second drive power, the elasticity of cooperation elastomer to the reverse application of vibrator assembly can realize reciprocating vibration in a plurality of directions, has improved the vibration effect of motor.
Description
Technical Field
The invention relates to the technical field of consumer electronics, in particular to a vibration motor and mobile electronic equipment.
Background
Portable consumer electronic devices, such as cell phones, palm game players, navigation devices, or palm multimedia entertainment devices, typically use motors to provide system feedback, such as phone call prompts, vibration feedback from the game player, etc. At present, motors used in portable consumer electronic devices are all motors vibrating in a single direction, and when the motors vibrate, the motors vibrate in one direction only, but cannot vibrate in other directions, so that the vibration directions of the motors are limited.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical problem that the motor can only vibrate in a single direction in the prior art, thereby providing the vibration motor and the mobile electronic equipment.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a vibration motor, comprising:
An outer housing;
A driving assembly including a first coil and a second coil fixed to opposite inner wall surfaces of the outer case;
A vibrator assembly movably accommodated in the outer case along a longitudinal direction of the outer case and positioned between the first coil and the second coil, the vibrator assembly including a weight portion and a magnet portion fitted to the weight portion; the first coil generates a first driving force in a first axis direction to the magnet portion, and the second coil generates a second driving force in a second axis direction to the magnet portion; the first axis direction is perpendicular to the second axis direction;
And an elastic body having one end elastically acting on the vibrator assembly and the other end elastically acting on the outer case, and reversely applying elastic force against the first driving force and the second driving force applied to the magnet portion to the vibrator assembly.
Further, the elastic body comprises four elastic blocks; one end of the elastic block is elastically propped against the inner wall of the outer shell, and the other end of the elastic block is elastically propped against the surface of the counterweight part, which faces the first coil or the second coil; two elastic blocks are arranged at two ends of the first coil along the length direction of the outer shell, and the other two elastic blocks are respectively arranged at two ends of the second coil along the length direction of the outer shell.
Further, the counterweight portion is provided with guide holes along both ends in a length direction thereof, an axial direction of the guide holes is the same as the second axial direction, and the elastic block includes:
A main body portion having one end elastically abutted against a surface of the weight portion facing the first coil or the second coil and the other end elastically abutted against an inner wall of the outer case, the main body portion reversely applying an elastic force against a second driving force applied to the magnet portion to the vibrator assembly;
The boss structure protrudes from the end face of the main body, which faces the counterweight part, and is matched with the guide hole, and the boss structure reversely applies elastic force against the first driving force applied to the magnet part to the vibrator assembly.
Further, the driving assembly comprises a top plate and a bottom plate which are respectively connected to two opposite inner wall surfaces of the outer shell, the first coil is fixed on the top plate, and the second coil is fixed on the bottom plate; and guide holes for the main body part to penetrate through are formed in the top plate and the bottom plate.
Further, the four elastic blocks have the same structural shape.
Further, the elastic block is made of special silicone rubber.
Further, the counterweight part is formed by overlapping three identical mass blocks.
Further, the driving assembly further comprises a circuit board which is communicated with the first coil and the second coil and is used for connecting an external circuit of the circuit board.
Further, the outer shell comprises a first shell and a second shell matched with the first shell; the first shell is of a semi-closed cuboid structure, the driving assembly, the elastic body and the vibrator assembly are all installed in the first shell, and the second shell is fixed at the open end of the first shell.
The invention also provides mobile electronic equipment, which comprises the vibration motor.
The technical scheme of the invention has the following advantages:
1. According to the vibration motor provided by the invention, the vibrator assembly is suspended between the first coil and the second coil of the driving assembly, and the first coil and the second coil can generate a first driving force along a first axis direction and a second driving force along a second axis direction for the vibrator assembly through the magnet part; because the size and the direction of the first driving force and the second driving force can change along with time, and the direction of the first driving force and the direction of the second driving force are always kept vertical, after the resultant force of the first driving force and the second driving force acts on the magnet part, the vibrator assembly can realize reciprocating vibration in multiple directions by matching with the elastic force of the elastic body applied reversely to the vibrator assembly, and the vibration effect of the motor is improved.
2. According to the vibration motor provided by the invention, the four elastic blocks are adopted as the elastic supporting pieces of the vibrator assembly, so that the vibrator assembly can be well supported by the four elastic blocks, the vibrator assembly can be kept in vibration balance, the resonant frequency of the motor is reduced, and the stability of the motor is improved; and because the elastic block is not easy to cause stress fatigue, the motor has good high temperature resistance and aging resistance, and can improve the stability and the service life of the motor.
3. According to the vibration motor provided by the invention, the balance weight part of the vibrator assembly is provided with the guide hole, and the boss structure of the elastic block extends into the guide hole; in the vibration process of the vibrator assembly, the boss structure reversely applies elastic force against the first driving force applied to the magnet part to the vibrator assembly, so that the vibrator assembly can perform reciprocating vibration along the first axis direction; the main body part reversely applies elastic force against the first driving force applied to the magnet part to the vibrator assembly so that the vibrator assembly can do reciprocating motion in the second axial direction; therefore, the vibrator assembly can do reciprocating vibration in any direction under the action of the driving assembly and the elastic body, and the vibration effect of the motor is improved.
4. According to the vibrating motor provided by the invention, the guide holes on the top plate and the bottom plate can limit the main body part of the elastic block, and the phenomenon that the elastic block is deviated in the vibrating process can be prevented, so that the stability of the vibrator assembly in the vibrating process can be further improved.
5. According to the vibration motor provided by the invention, the four elastic blocks are identical in size and shape, and in the vibration process of the vibrator assembly, the four elastic blocks exert the same elastic force on the vibrator assembly and are opposite in direction, so that the vibrator assembly can better maintain the stability of a vibration state.
6. According to the vibration motor provided by the invention, the die opening cost of the counterweight part with the size of the body required by one-time processing is high, and the production cost can be reduced by adopting a mode that a plurality of mass blocks with the same size are overlapped to form the counterweight part.
7. The vibration motor provided by the invention adopts the elastic block made of special silicone rubber, has good high-temperature aging resistance, is not easy to damage and has long service life.
8. The invention also provides an electronic device, which adopts the vibrating motor and has the advantages of good stability, long service life and capability of generating vibration sense in multiple directions.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a vibration motor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a connection relationship between a vibrator assembly and a driving assembly of a vibration motor according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a vibration motor in a semi-sectional configuration according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an assembly relationship between a first housing and a second housing in a vibration motor according to an embodiment of the present invention.
Reference numerals illustrate: 1. an outer housing; 11. a first housing; 12. a second housing; 2. a drive assembly; 21. a first coil; 22. a second coil; 23. a top plate; 24. a bottom plate; 25. a circuit board; 26. a guide hole; 3. a vibrator assembly; 31. a weight part; 311. a guide hole; 32. a magnet portion; 4. an elastic block; 41. a main body portion; 42. a boss structure.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A vibration motor as shown in fig. 1 to 4 includes an outer case 1, and a driving assembly 2, a vibrator assembly 3, and an elastic body which are accommodated in the outer case 1. Wherein the driving assembly 2 comprises a first coil 21 and a second coil 22 fixed on opposite inner wall surfaces of the outer casing 1. The vibrator assembly 3 includes a weight portion 31 and a magnet portion 32 embedded in the weight portion 31, the magnet portion 32 includes two sets of magnets with opposite polarities, and the weight portion 31 is suspended between the first coil 21 and the second coil 22 through elastic bodies at both ends. The first coil 21 generates a first driving force in the first axis direction to the magnet portion 32, and the second coil 22 generates a second driving force in the second axis direction to the magnet portion 32; the first axis direction is perpendicular to the second axis direction. Opposite ends of the elastic body elastically act on the vibrator assembly 3 and the inner wall of the outer case 1, respectively, and elastic forces against the first driving force and the second driving force applied to the magnet portion 32 are applied to the vibrator assembly 3 in opposite directions.
By suspending the vibrator assembly 3 between the first coil 21 and the second coil 22 of the driving assembly 2, the first coil 21 and the second coil 22 can generate a first driving force in the first axis direction and a second driving force in the second axis direction to the vibrator assembly 3 by the magnet portion 32; because the direction of the first driving force and the direction of the second driving force are always kept perpendicular, and the magnitude and the direction of the first driving force and the second driving force can be changed along with time, after the resultant force of the first driving force and the second driving force acts on the magnet part 32, the vibrator assembly 3 can realize reciprocating vibration in multiple directions by matching with the elastic force of the elastic body applied reversely to the vibrator assembly 3, and the vibration effect of the motor is improved.
In this embodiment, the elastic body includes four elastic blocks 4. One end of the elastic block 4 is elastically abutted against the inner wall of the outer housing 1, and the other end is elastically abutted against the surface of the weight portion 31 facing the first coil 21 or the second coil 22; two of the elastic blocks 4 are arranged at two ends of the first coil 21 along the length direction of the outer housing 1, and the other two elastic blocks 4 are respectively arranged at two ends of the second coil 22 along the length direction of the outer housing 1. In other embodiments, the elastic block 4 may be fixed to the inner wall surface of the outer case 1 by gluing. The four elastic blocks 4 are symmetrically arranged to have good supporting effect on the vibrator assembly 3, so that the vibrator assembly 3 is helped to keep vibration balance, the resonance frequency of the motor is reduced, and the stability of the motor is improved; and because the elastic block 4 is not easy to cause stress fatigue, the motor has good high temperature resistance and aging resistance, and can improve the stability and the service life of the motor.
In particular, the four elastic blocks 4 are identical in size and shape and made of special silicone rubber materials. In the vibration process of the vibrator assembly 3, the four elastic blocks 4 apply the same elastic force to the vibrator assembly 3 and have opposite directions, so that the vibrator assembly 3 can better maintain the stability of a vibration state. The elastic block 4 made of special silicone rubber has good high-temperature aging resistance, is not easy to damage, and can improve the stability and the service life of the elastic block 4 and the vibration motor.
In the present embodiment, the weight portion 31 is provided with cylindrical guide holes 311 at both ends in the longitudinal direction thereof, and the axial direction of the guide holes 311 is the same as the second axial direction. The elastic block 4 includes a main body 41 and a boss structure 42 protruding from an end surface of the main body 41 facing the weight 31, and the boss structure 42 is also cylindrical and extends into the guide hole 311. When the vibrator assembly 3 makes a reciprocating vibration in the first axis direction, the boss structure 42 reversely applies an elastic force against the first driving force applied to the magnet portion 32 to the weight portion 31 through the guide hole 311; when the vibrator assembly 3 performs reciprocating vibration in the second axis direction, the boss structure 42 can play a role in guiding the vibration of the vibrator assembly 3, so that the vibrator assembly 3 is helped to keep vibration balance; when the vibrator assembly 3 vibrates reciprocally under the resultant force of the first driving force and the second driving force, the boss structure 42 applies an elastic force against the first driving force applied to the magnet portion 32 to the vibrator assembly 3 in a reverse direction, and the main body portion 41 applies an elastic force against the second driving force applied to the magnet portion 32 to the vibrator assembly 3 in a reverse direction, so that the vibrator assembly 3 can vibrate reciprocally in any direction due to the resultant force of the two elastic forces.
In a preferred implementation of the present embodiment, the driving assembly 2 includes a top plate 23 and a bottom plate 24 respectively connected to two opposite inner wall surfaces of the outer casing 1, the first coil 21 is fixed to the top plate 23, and the second coil 22 is fixed to the bottom plate 24; the top plate 23 and the bottom plate 24 are each provided with a guide hole 26 through which the body 41 passes. The guide holes 26 on the top plate 23 and the bottom plate 24 can limit the main body 41 of the elastic block 4, and can prevent the elastic block 4 from deviating during the vibration process, thereby further improving the stability of the vibrator assembly 3 during the vibration process.
In this embodiment, the driving assembly 2 further includes a circuit board 25 electrically connected to the first coil 21 and the second coil 22 and adapted to connect to an external circuit of the circuit board 25. The circuit board 25 includes integrated into one piece's U-shaped plate body and wiring board, and two support arms of U-shaped plate body are supported respectively on the internal face of roof 23 and bottom plate 24 and are connected with first coil 21 and second coil 22 electricity, and the linking arm between two support arms not only connects two support arms, can also play the effect of supporting between roof 23 and bottom plate 24, helps making roof 23 and bottom plate 24 keep the stability of relative position, can make first coil 21 and second coil 22 keep the stability of relative position better. One end of the wiring board is connected with one support arm of the U-shaped plate body, and is outwards bent through an opening in the outer shell body 1 and then extends out, and the wiring board is provided with a contact capable of being connected with an external circuit.
In the present embodiment, the weight portion 31 is formed by overlapping three identical mass blocks. Because the die sinking cost of the counterweight part 31 with the size of the body required by one-time processing is higher, the production cost can be reduced by adopting a mode of overlapping a plurality of mass blocks with the same size to form the counterweight part 31.
In the present embodiment, the outer housing 1 includes a first housing 11 and a second housing 12 adapted to the first housing 11; the first housing 11 is a semi-closed cuboid structure, the driving assembly 2, the elastomer and the vibrator assembly 3 are all installed in the first housing 11, and the second housing 12 is fixed at an open end of the first housing 11.
In summary, in the vibration motor provided by the embodiment of the present invention, the vibrator assembly 3 is suspended between the first coil 21 and the second coil 22 of the driving assembly 2, and the first coil 21 and the second coil 22 can generate the first driving force along the first axis direction and the second driving force along the second axis direction for the vibrator assembly 3 through the magnet portion 32; because the magnitude and the direction of the first driving force and the second driving force can change along with time, and the direction of the first driving force and the direction of the second driving force are always kept perpendicular, after the resultant force of the first driving force and the second driving force acts on the magnet part 32, the vibrator assembly 3 can realize reciprocating vibration in multiple directions by matching with the elastic force of the elastic body applied reversely to the vibrator assembly 3, and the vibration effect of the motor is improved.
The invention also provides mobile electronic equipment comprising the vibration motor. The electronic equipment adopting the vibration motor has the advantages of good vibration stability, long service life and capability of generating vibration feeling in multiple directions.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A vibration motor, comprising:
An outer case (1);
A drive unit (2) including a first coil (21) and a second coil (22) fixed to two opposite inner wall surfaces of the outer case (1), and a top plate (23) and a bottom plate (24) respectively connected to the two opposite inner wall surfaces of the outer case (1); the first coil (21) is fixed to the top plate (23), and the second coil (22) is fixed to the bottom plate (24);
The driving assembly (2) further comprises a circuit board (25) which is communicated with the first coil (21) and the second coil (22) and is used for connecting a circuit externally connected with the circuit board, the circuit board (25) comprises an integrally formed U-shaped plate body and a wiring board, and two support arms of the U-shaped plate body are respectively supported on the inner wall surfaces of the top plate (23) and the bottom plate (24) and are electrically connected with the first coil (21) and the second coil (22);
A vibrator assembly (3) which is housed in the outer case (1) so as to be movable along the longitudinal direction of the outer case (1), is located between the first coil (21) and the second coil (22), and includes a weight portion (31) and a magnet portion (32) fitted in the weight portion (31); the first coil (21) generates a first driving force in a first axis direction to the magnet portion (32), and the second coil (22) generates a second driving force in a second axis direction to the magnet portion (32); the first axis direction is perpendicular to the second axis direction;
an elastic body having one end elastically acting on the vibrator assembly (3) and the other end elastically acting on the outer case (1), and applying elastic force against the first driving force and the second driving force applied to the magnet portion (32) to the vibrator assembly (3) in opposite directions;
The counterweight part (31) is provided with guide holes (311) along two ends in the length direction, and the axial direction of the guide holes (311) is the same as the second axial direction; the elastic body comprises four elastic blocks (4), and the elastic blocks (4) comprise:
A main body portion (41) having one end elastically abutting against a surface of the weight portion (31) facing the first coil (21) or the second coil (22) and the other end elastically abutting against an inner wall of the outer case (1), the main body portion (41) reversely applying an elastic force against a second driving force applied to the magnet portion (32) to the vibrator assembly (3);
The boss structure (42) is arranged on the end face of the main body part (41) facing the counterweight part (31) in a protruding mode and is matched with the guide hole (311), and the boss structure (42) reversely applies elastic force against the first driving force applied to the magnet part (32) to the vibrator assembly (3).
2. A vibrating motor according to claim 1, wherein one end of the elastic block (4) is elastically abutted against an inner wall of the outer case (1), and the other end is elastically abutted against a surface of the weight portion (31) facing the first coil (21) or the second coil (22); wherein two elastic blocks (4) are arranged at two ends of the first coil (21) along the length direction of the outer shell (1), and the other two elastic blocks (4) are respectively arranged at two ends of the second coil (22) along the length direction of the outer shell (1).
3. A vibrating motor according to claim 2, wherein the top plate (23) and the bottom plate (24) are each provided with a guide hole (26) through which the main body portion (41) passes.
4. A vibrating motor according to claim 2, characterized in that the four elastic blocks (4) are identical in structural shape.
5. Vibrating motor according to claim 2, characterized in that the elastic block (4) is made of special silicone rubber.
6. A vibrating motor according to claim 1, wherein the counterweight (31) comprises a stack of three identical masses.
7. A vibrating motor according to claim 1, characterized in that the outer housing (1) comprises a first housing (11) and a second housing (12) adapted to the first housing (11); the first shell (11) is of a semi-closed cuboid structure, the driving assembly (2), the elastic body and the vibrator assembly (3) are all installed in the first shell (11), and the second shell (12) is fixed at the open end of the first shell (11).
8. A mobile electronic device comprising a vibration motor according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474899.3A CN110224571B (en) | 2019-05-31 | 2019-05-31 | Vibration motor and mobile electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474899.3A CN110224571B (en) | 2019-05-31 | 2019-05-31 | Vibration motor and mobile electronic equipment |
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| CN110224571A CN110224571A (en) | 2019-09-10 |
| CN110224571B true CN110224571B (en) | 2024-05-28 |
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| CN201910474899.3A Active CN110224571B (en) | 2019-05-31 | 2019-05-31 | Vibration motor and mobile electronic equipment |
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| CN113410969B (en) * | 2021-07-19 | 2023-01-20 | 歌尔股份有限公司 | Vibration motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105406676A (en) * | 2015-11-25 | 2016-03-16 | 歌尔声学股份有限公司 | Linear vibrating motor |
| CN207603420U (en) * | 2017-11-17 | 2018-07-10 | 瑞声科技（南京）有限公司 | Linear vibration electric motor |
| CN207706021U (en) * | 2017-12-12 | 2018-08-07 | 歌尔科技有限公司 | A kind of linear vibration motor |
| CN208589892U (en) * | 2018-08-03 | 2019-03-08 | 瑞声科技（南京）有限公司 | Vibrating motor |
| CN210129813U (en) * | 2019-05-31 | 2020-03-06 | 黄自乐 | Vibrating motor and mobile electronic equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660003B (en) * | 2015-02-02 | 2017-05-10 | 瑞声光电科技(常州)有限公司 | Flat linear vibration motor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406676A (en) * | 2015-11-25 | 2016-03-16 | 歌尔声学股份有限公司 | Linear vibrating motor |
| CN207603420U (en) * | 2017-11-17 | 2018-07-10 | 瑞声科技（南京）有限公司 | Linear vibration electric motor |
| CN207706021U (en) * | 2017-12-12 | 2018-08-07 | 歌尔科技有限公司 | A kind of linear vibration motor |
| CN208589892U (en) * | 2018-08-03 | 2019-03-08 | 瑞声科技（南京）有限公司 | Vibrating motor |
| CN210129813U (en) * | 2019-05-31 | 2020-03-06 | 黄自乐 | Vibrating motor and mobile electronic equipment |
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