CN217115904U

CN217115904U - Linear vibration motor

Info

Publication number: CN217115904U
Application number: CN202220821470.4U
Authority: CN
Inventors: 张源; 张贺兴
Original assignee: Hunan Ruijian Technology Co ltd
Current assignee: Hunan Ruijian Technology Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-08-02
Anticipated expiration: 2032-04-07

Abstract

The utility model belongs to the technical field of electronics, in particular to a linear vibration motor, which aims at the problems that the prior rotor is difficult to keep vibration balance and easy to generate polarization due to electromagnetic force in the vibration process, the following proposal is provided, which comprises an aluminum shell, wherein the top of the aluminum shell is fixedly connected with a cover plate, the inner wall of the aluminum shell is fixedly connected with a bottom plate, the outer wall of the bottom plate is connected with two mounting blocks in a sliding way, the outer walls of the two mounting blocks are both provided with a plurality of through holes, a permanent magnet is fixedly connected between the two mounting blocks, the outer wall of the permanent magnet is sleeved with a coil, the outer wall of the mounting block is fixedly connected with two guard plates, the utility model buffers the force of the reciprocating motion of the permanent magnet through a spring, through first guide post, second guide post and installation piece, supplementary permanent magnet removes, carries on spacingly to it simultaneously, guarantees the stability of permanent magnet at the removal in-process.

Description

Linear vibration motor

Technical Field

The utility model relates to the field of electronic technology, especially, relate to a linear vibrating motor.

Background

With the development of communication technology, portable electronic products, such as mobile phones, handheld game consoles or handheld multimedia entertainment devices, have come into the lives of people. In these portable electronic products, a linear vibration motor is generally used for system feedback, such as incoming call prompt of a mobile phone, vibration feedback of a game machine, and the like, and the linear vibration motor generally includes a mover, a stator, an elastic element, and a housing.

In the prior art, the mover is difficult to keep vibration balance due to electromagnetic force in the vibration process, and polarization is easy to generate, so a linear vibration motor is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the mover is difficult to keep the vibration balance due to the electromagnetic force in the vibration process, and easily generates the polarization defect, and provides a linear vibration motor.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a linear vibrating motor, includes the aluminum hull, the top fixedly connected with apron of aluminum hull, the inner wall fixedly connected with bottom plate of aluminum hull, the outer wall sliding connection of bottom plate has two installation pieces, and a plurality of through-holes have all been seted up to the outer wall of two installation pieces, fixedly connected with permanent magnet between two installation pieces, the outer wall cover of permanent magnet is equipped with the coil, two backplate of outer wall fixedly connected with of installation piece, the outer wall of backplate and aluminum hull's inner wall sliding connection, the inside of aluminum hull is equipped with guiding mechanism.

Preferably, guiding mechanism includes two springs, two first guide posts of the inner wall fixedly connected with and the second guide post of aluminum shell, two fixed columns of the inner wall fixedly connected with of aluminum shell, the outer wall of fixed column is located to the spring housing, the one end of spring and the inner wall fixed connection of aluminum shell, the other end of spring and the outer wall fixed connection of installation piece, through the power that sets up spring buffering permanent magnet reciprocating motion to reach vibrations effect.

Preferably, the outer wall of coil scribbles heat-conducting glue, the coil passes through heat-conducting glue and aluminium shell's inner wall fixed connection, dispels the heat through heat-conducting glue and aluminium shell to the coil.

Preferably, the outer wall of the guard plate is fixedly connected with a heat conducting fin.

Preferably, the outer wall of the heat-conducting fin is uniformly and fixedly connected with a plurality of heat-conducting wires.

Preferably, four guide grooves are formed in the outer walls of the guard plate and the mounting block, and the inner walls of the guide grooves are respectively connected with the outer walls of the first guide column and the second guide column in a sliding mode.

Preferably, the outer wall fixedly connected with two copper sheets of aluminum shell, the mounting hole has all been seted up to the outer wall of two copper sheets, conveniently installs aluminum shell through setting up the copper sheet.

Compared with the prior art, the utility model has the advantages of:

this scheme permanent magnet carries out reciprocating motion, through spring buffering permanent magnet reciprocating motion's power, through first guide post, second guide post and installation piece, supplementary permanent magnet removes, carries on spacingly to it simultaneously, guarantees the permanent magnet at the stability of removal in-process, and the heat that coil self produced is through conducting strip and heat conduction silk conveying on backplate and aluminum hull, dispels the heat.

Drawings

Fig. 1 is a schematic perspective view of a linear vibration motor according to the present invention;

fig. 2 is a schematic cross-sectional structure view of a linear vibration motor according to the present invention;

fig. 3 is the utility model provides a mounting block, through-hole, permanent magnet, coil, second guide post and backplate structure sketch map of linear vibration motor.

In the figure: 1. an aluminum housing; 2. a cover plate; 3. a base plate; 4. mounting blocks; 5. a through hole; 6. a permanent magnet; 7. a coil; 8. a heat conductive sheet; 9. heat conducting wires; 10. a first guide post; 11. a second guide post; 12. fixing a column; 13. a spring; 14. a guard plate; 15. a copper sheet.

Detailed Description

Shown by fig. 1-3, relate to a linear vibration motor, including shell 1, the top fixedly connected with apron 2 of aluminum shell 1, the inner wall fixedly connected with bottom plate 3 of aluminum shell 1, the outer wall sliding connection of bottom plate 3 has two installation pieces 4, a plurality of through-holes 5 have all been seted up to the outer wall of two installation pieces 4, fixedly connected with permanent magnet 6 between two installation pieces 4, the outer wall cover of permanent magnet 6 is equipped with coil 7, the heat that coil 7 produced dispels the heat through conducting strip 8 and heat conduction silk 9, the outer wall of coil 7 scribbles the heat conduction glue, coil 7 passes through the heat conduction glue and aluminum shell 1's inner wall fixed connection, two backplate 14 of installation piece 4's outer wall fixed connection, the outer wall fixed connection of backplate 14 has heat conducting strip 8, the outer wall of backplate 14 and aluminum shell 1's inner wall sliding connection, aluminum shell 1's inside is equipped with guiding mechanism.

As shown in fig. 1 to 3, the guiding mechanism includes two springs 13, two first guide posts 10 and two second guide posts 11 are fixedly connected to the inner wall of the aluminum housing 1, the first guide posts 10 and the second guide posts 11 slide in the guide grooves, the auxiliary permanent magnet 6 moves, two fixing posts 12 are fixedly connected to the inner wall of the aluminum housing 1, the outer walls of the fixing posts 12 are sleeved with the springs 13, the fixing posts 12 assist the deformation of the springs 13, the springs 13 are prevented from being biased when stressed, one ends of the springs 13 are fixedly connected to the inner wall of the aluminum housing 1, and the other ends of the springs 13 are fixedly connected to the outer wall of the mounting block 4.

The working principle is as follows: seal up aluminum casing 1 through

apron

2, 7 circular telegrams of coil make permanent magnet 6 carry out reciprocating motion when using, form vibrations effect, the power through 6 reciprocating motion of spring 13 buffering permanent magnet, first guide post 10 slides in the guide way with second guide post 11, supplementary permanent magnet 6 removes, it is spacing to it simultaneously, guarantee permanent magnet 6 stability at the removal in-process, fixed column 12 supplementary spring 13 deformation, prevent spring 13 skew position when the atress, coil 7 is when the operation, the heat of production conveys on backplate 14 and aluminum casing 1 through conducting strip 8 and conducting wire 9, dispel the heat to it.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The utility model provides a linear vibrating motor, includes aluminum hull (1), its characterized in that, top fixedly connected with apron (2) of aluminum hull (1), inner wall fixedly connected with bottom plate (3) of aluminum hull (1), the outer wall sliding connection of bottom plate (3) has two installation pieces (4), and a plurality of through-holes (5) have all been seted up to the outer wall of two installation pieces (4), fixedly connected with permanent magnet (6) between two installation pieces (4), the outer wall cover of permanent magnet (6) is equipped with coil (7), two backplate (14) of outer wall fixedly connected with of installation piece (4), the outer wall of backplate (14) and the inner wall sliding connection of aluminum hull (1), the inside of aluminum hull (1) is equipped with guiding mechanism.

2. The linear vibration motor according to claim 1, wherein the guide mechanism comprises two springs (13), two first guide posts (10) and two second guide posts (11) are fixedly connected to the inner wall of the aluminum housing (1), two fixed posts (12) are fixedly connected to the inner wall of the aluminum housing (1), the springs (13) are sleeved on the outer walls of the fixed posts (12), one end of each spring (13) is fixedly connected to the inner wall of the aluminum housing (1), and the other end of each spring (13) is fixedly connected to the outer wall of the mounting block (4).

3. A linear vibration motor according to claim 1, wherein the outer wall of the coil (7) is coated with a heat conductive adhesive, and the coil (7) is fixedly connected to the inner wall of the aluminum case (1) through the heat conductive adhesive.

4. A linear vibration motor according to claim 1, wherein a heat-conducting fin (8) is fixedly attached to an outer wall of the protector plate (14).

5. A linear vibration motor according to claim 4, wherein a plurality of heat-conducting wires (9) are uniformly and fixedly connected to the outer wall of the heat-conducting fin (8).

6. The linear vibration motor of claim 2, wherein the guard plate (14) and the outer wall of the mounting block (4) are provided with four guide grooves, and the inner walls of the guide grooves are respectively connected with the outer walls of the first guide post (10) and the second guide post (11) in a sliding manner.

7. The linear vibration motor according to claim 1, wherein two copper sheets (15) are fixedly connected to the outer wall of the aluminum housing (1), and mounting holes are formed in the outer walls of the two copper sheets (15).