CN212627624U

CN212627624U - Vibration motor

Info

Publication number: CN212627624U
Application number: CN202021260046.4U
Authority: CN
Inventors: 凌芳华; 浦晓峰; 陶锋; 王俊生
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-02-26
Anticipated expiration: 2030-06-30
Also published as: WO2022000516A1

Abstract

The utility model provides a vibration motor, which comprises a shell with an accommodating space, a stator, a vibrator, an elastic piece, a circuit board and a buffer piece, wherein the stator, the vibrator, the elastic piece, the circuit board and the buffer piece are accommodated in the accommodating space; the stator is fixedly connected with the shell; the vibrator is suspended in the accommodating space through an elastic piece; the circuit board is electrically connected with the stator, or the circuit board is electrically connected with the vibrator; the buffer piece is arranged between the vibrator and the elastic piece; the buffer piece comprises a main body attached to the elastic piece and a fixing part extending from one side of the main body close to the vibrator, and the vibrator is provided with a fixing groove matched with the fixing part and correspondingly accommodating the fixing part; the side of the vibrator, which is far away from the circuit board, is sunken towards the direction of the circuit board to form a supporting wall for supporting the fixing part and a surrounding wall which is arranged around the periphery of the fixing part, wherein the supporting wall and the surrounding wall form a fixing groove; the one end that the enclosure wall kept away from the support wall encloses the opening that deviates from the circuit board, and the fixed part inserts the fixed slot from the opening, and the support wall is located between fixed part and the circuit board. The utility model discloses can improve efficiency of software testing, reduce the test flow.

Description

Vibration motor

[ technical field ] A method for producing a semiconductor device

The utility model relates to a vibrating motor.

[ background of the invention ]

A vibration motor is a device that converts electric energy into mechanical energy using an electromagnetic principle, and is often installed in a portable mobile device to generate vibration feedback, such as vibration of a mobile phone or vibration feedback of a game machine, due to its small size and low power consumption.

The vibrating motor comprises a fixing assembly and a vibrator, wherein the fixing assembly comprises a shell with an accommodating space and a stator fixed with the shell, and the vibrator is suspended in the accommodating space through an elastic piece. In order to improve the quality of the vibration feedback, a buffer is often arranged between the elastic element and the vibrator to generate damping. The damping can be adjusted by adjusting the buffer part, and the damping can influence the amplitude, frequency and other parameters of vibration, so that in order to improve the testing efficiency, a structure capable of rapidly assembling and disassembling the buffer part is necessary to be developed so as to reduce the testing process.

[ summary of the invention ]

An object of the utility model is to provide a vibrating motor convenient to test to improve efficiency of software testing, reduce the test flow.

The technical scheme of the utility model as follows:

a vibration motor comprises a shell with an accommodating space, a stator, a vibrator, an elastic piece, a circuit board and a buffer piece, wherein the stator, the vibrator, the elastic piece, the circuit board and the buffer piece are accommodated in the accommodating space; the stator is fixedly connected with the shell; the vibrator is suspended in the accommodating space through the elastic piece; the circuit board is electrically connected with the stator, or the circuit board is electrically connected with the vibrator; the buffer piece is arranged between the vibrator and the elastic piece; the buffer piece comprises a main body attached to the elastic piece and a fixing part extending from one side of the main body close to the vibrator, and the vibrator is provided with a fixing groove matched with the fixing part and correspondingly accommodating the fixing part; one side of the vibrator, which is far away from the circuit board, is sunken towards the direction of the circuit board to form a supporting wall for supporting the fixing part and a surrounding wall arranged around the periphery of the fixing part, wherein the supporting wall and the surrounding wall form the fixing groove in a surrounding manner; one end of the surrounding wall, which is far away from the supporting wall, is surrounded to form an opening which is far away from the circuit board, the fixing part is inserted into the fixing groove from the opening, and the supporting wall is located between the fixing part and the circuit board.

The beneficial effects of the utility model reside in that:

through making the bolster have with the main part of elastic component laminating, the dismantlement of the bolster of being convenient for, through making fixed part and fixed slot match fixed connection, guarantee that bolster and oscillator are reliable and inseparable to be connected together, have the opening that supplies the fixed part to insert the fixed slot that deviates from the circuit board through the fixed slot, can be at the elastic component, the oscillator, quick assembly disassembly bolster under the condition that stator and circuit board all assembled, and needn't take out other structures earlier and go to adjust the bolster again, thereby improve efficiency of software testing, reduce the test flow, this kind of structure still is because of the convenience of its installation simultaneously, the product yield has been improved, the uniformity of product has been improved.

[ description of the drawings ]

Fig. 1 is an exploded schematic view of a vibration motor according to an embodiment of the present invention.

Fig. 2 is an assembly structure view of the vibration motor shown in fig. 1.

Fig. 3 is a schematic sectional view along a-a in fig. 2.

Fig. 4 is a partially assembled top view of the vibration motor shown in fig. 1.

Fig. 5 is a schematic structural diagram of the mass block in fig. 1.

Fig. 6 is a schematic structural view of the buffer member in fig. 1.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 6, the present invention discloses a vibration motor, which includes a housing 10 having an accommodating space, and a stator 20, a vibrator 30, an elastic member 40, a circuit board 50 and a buffer member 60 accommodated in the accommodating space. The stator 20 is fixedly connected with the housing 10, the vibrator 30 is suspended in the accommodating space through the elastic member 40, one end of the circuit board 50 is electrically connected with the stator 20 or the vibrator 30, the other end of the circuit board 50 extends out of the housing 10, and a contact 51 is arranged on the circuit board and is used for being electrically connected with an external power supply and/or an electronic component. Cushion member 60 is provided between vibrator 30 and elastic member 40, and cushion member 60 serves to increase damping of vibrator 30. Buffer 60 includes main body 62 attached to elastic element 40 and fixing portion 61 extending from one side of main body 62 close to vibrator 30 toward vibrator 30, vibrator 30 is provided with fixing groove 31 matching with fixing portion 61 and correspondingly accommodating fixing portion 61; a supporting wall 311 for supporting the fixing part 61 and a surrounding wall 313 surrounding the periphery of the fixing part 61 are formed by sinking one side of the vibrator 30 far away from the circuit board 50 towards the circuit board 50, and the supporting wall 311 and the surrounding wall 313 surround the fixing groove 31; one end of the surrounding wall 313 far away from the supporting wall 311 surrounds an opening 312 far away from the circuit board 50, the fixing part 61 is inserted into the fixing groove 31 from the opening 312, and the supporting wall 311 is positioned between the fixing part 61 and the circuit board 50. When testing vibration performance, only need insert or extract the fixed slot 31 with the fixed part 61 of bolster 60 and can accomplish the loading and unloading of bolster 60, need not to dismantle elastic component 40, oscillator 30, stator 20 and circuit board 50, improve efficiency of software testing, reduce the test flow, and simultaneously, the main part 62 and the laminating of elastic component 40 setting of bolster 60, the installation and the dismantlement of the bolster 60 of being convenient for, and the position of other structures of influence as few as possible, also need not to dismantle other structures, the uniformity among the retest process has been guaranteed, the product yield has been improved.

In this embodiment, the housing 10 includes a ring-shaped side plate 12, a bottom plate 11 respectively mounted on two opposite sides of the side plate 12, and a top plate 13 disposed opposite to the bottom plate 11, the side plate 12, and the top plate 13 enclose an accommodation space, the housing 10 is rectangular as a whole, the stator 20 is fixed on the bottom plate 11, and the circuit board 50 is disposed between the stator 20 and the bottom plate 11. In this embodiment, the wiring board 50 is electrically connected to the stator 20. One end of the elastic member 40 is connected to the vibrator 30, and the other end of the elastic member 40 is fixed to the side plate 12, and the vibrator 30 can reciprocate in a direction parallel to the bottom plate 11.

The fixing groove 31 is used for accommodating the fixing portion 61 of the buffer member 60 to ensure that the vibrator 30 and the buffer member 60 are reliably and tightly connected together in a moving direction parallel to the base plate 11 during the movement of the vibrator 30. Referring to fig. 5 and 6, in this particular embodiment, the enclosure wall 313 is an arcuate wall. In cooperation, the outer wall of the fixing portion 61 of the buffering member 60 also has an arc-shaped sidewall matched with the fixing portion, so that the installation is convenient, and the contact area can be ensured to the maximum extent, thereby obtaining a better buffering effect. In this particular embodiment, the cross-sectional shape of the opening 312 is semi-circular.

In other alternative embodiments, it is preferable that the hole diameter of the fixing groove 31 is gradually reduced from the opening 312 toward the support wall 311 for the convenience of installation. In cooperation, the outer wall of the fixing portion 61 of the buffer 60 also has an arc-shaped sidewall shape in cooperation therewith. When the fixing part 61 is inserted into the fixing groove 31, since the cross-section of the opening 312 is larger than the bottom surface of the fixing part 61, the insertion of the fixing part 61 into the fixing groove 31 is facilitated.

In order to ensure that the reciprocating force of the vibrator 30 is uniform in the reciprocating motion in the direction parallel to the base plate 11, the number of the elastic members 40 is 2, and the elastic members are respectively arranged at two ends of the vibrator 30 along the motion direction, and correspondingly, a buffer member 60 is arranged between each elastic member 40 and the vibrator 30.

Referring to fig. 4, in the present embodiment, the elastic member 40 includes a first fixing portion 41, a second fixing portion 42, and a connecting portion 43 connecting the first fixing portion 41 and the second fixing portion 42, the first fixing portion 41 is fixedly connected to the vibrator 30, the second fixing portion 42 is fixedly connected to the side plate 12 of the case 10, and the main body 62 of the cushion member 60 is interposed between the connecting portion 43 and the vibrator 30. Preferably, the elastic members 40 are U-shaped and located on two opposite sides of the vibrator 30, the opening directions of the two elastic members 40 are opposite, and the buffering members 30 and the elastic members 40 are arranged in one-to-one correspondence.

In the present embodiment, an avoiding groove 33 is formed on a side of the vibrator 30 close to the stator 20 to avoid the stator 20, the stator 20 is at least partially accommodated in the avoiding groove 33, and the avoiding groove 33 is spaced apart from the stator 20.

In this embodiment, the vibrator 30 includes a mass 37 provided with an avoiding groove 33, an annular yoke 38 abutting against an inner wall of the avoiding groove 33, and a magnetic steel 36 fixed to an inner wall of the annular yoke 38, the avoiding groove 33 penetrates through the mass 37, the magnetic steel 36 is spaced from the stator 20, the annular yoke 38 surrounds the stator 20, in this embodiment, the stator 20 includes an iron core 22 and a coil 21 surrounding the iron core 22, and the coil 21 is electrically connected to the circuit board 50. The number of magnet steels 36 is 4, and the magnet steels are uniformly distributed around the coil 21. When the coil 21 is energized with ac, the magnetic steel 36 drives the mass 37 to reciprocate under the action of the magnetic field force and supported by the elastic member 40, so as to generate vibration feedback.

Of course, in other preferred embodiments, the structure of transducer 30 may be any structure known in the art, and is not limited to the above-described structure.

The above are only embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A vibration motor is characterized by comprising a shell with an accommodating space, a stator, a vibrator, an elastic piece, a circuit board and a buffer piece, wherein the stator, the vibrator, the elastic piece, the circuit board and the buffer piece are accommodated in the accommodating space;

the stator is fixedly connected with the shell;

the vibrator is suspended in the accommodating space through the elastic piece;

the circuit board is electrically connected with the stator, or the circuit board is electrically connected with the vibrator;

the buffer piece is arranged between the vibrator and the elastic piece;

the buffer piece comprises a main body attached to the elastic piece and a fixing part extending from one side of the main body close to the vibrator, and the vibrator is provided with a fixing groove matched with the fixing part and correspondingly accommodating the fixing part; one side of the vibrator, which is far away from the circuit board, is sunken towards the direction of the circuit board to form a supporting wall for supporting the fixing part and a surrounding wall arranged around the periphery of the fixing part, wherein the supporting wall and the surrounding wall form the fixing groove in a surrounding manner; one end of the surrounding wall, which is far away from the supporting wall, is surrounded to form an opening which is far away from the circuit board, the fixing part is inserted into the fixing groove from the opening, and the supporting wall is located between the fixing part and the circuit board.

2. The vibration motor of claim 1, wherein the surrounding wall is an arc-shaped wall.

3. The vibration motor according to claim 2, wherein the hole diameter of the fixing groove is gradually reduced from the opening toward the support wall.

4. The vibration motor according to any one of claims 1 to 3, wherein the elastic member includes a first fixing portion, a second fixing portion, and a connecting portion connecting the first fixing portion and the second fixing portion, the first fixing portion is fixedly connected to the vibrator, the second fixing portion is fixedly connected to the housing, and the main body is interposed between the connecting portion and the vibrator.

5. The vibration motor of claim 4, wherein the elastic members are U-shaped and located at opposite sides of the vibrator, respectively, the opening directions of the elastic members located at different sides of the vibrator are oppositely arranged, and the buffer members are arranged in one-to-one correspondence with the elastic members.

6. The vibration motor according to claim 5, wherein an avoidance groove for avoiding the stator is formed at a side of the vibrator close to the stator, the stator is at least partially accommodated in the avoidance groove, and the avoidance groove is spaced from the stator.

7. The vibration motor according to claim 6, wherein the vibrator includes a mass block and a magnetic steel fixed to the mass block, the avoiding groove penetrates through the mass block, the magnetic steel is accommodated in the avoiding groove and spaced from the stator, the stator includes a coil, and the coil is electrically connected to the circuit board.

8. The vibration motor of claim 7, wherein the stator further comprises a core, and the coil is wound around an outer periphery of the core.

9. The vibration motor of claim 7, wherein the vibrator further comprises an annular yoke surrounding the stator, the annular yoke being sandwiched between the magnetic steel and the mass.

10. The vibration motor according to claim 1, wherein the housing includes an annular side plate, a bottom plate and a top plate, the bottom plate and the top plate being disposed opposite to the bottom plate, the top plate, the side plate and the bottom plate enclosing the housing space, the stator being fixed to the bottom plate, and the circuit board being disposed between the bottom plate and the stator.