CN209389909U - Vibrating motor - Google Patents

Abstract

The utility model provides a kind of vibrating motor.The vibrating motor includes shell, vibration unit, elastic component and driving unit, the vibration unit includes the magnet steel for having the mass block of first through hole and being contained in the first through hole and have the second through-hole, the elastic component includes the first fixed part being fixedly connected with the shell, with the second fixed part of the first fixed part relative spacing setting and connect the elasticity arm of first fixed part and second fixed part, second fixed part flexibly supports the magnet steel and the mass block, second fixed part includes the outer ring connecting with the elasticity arm and inner ring from the outer ring to the center of second fixed part that extend from, the magnet steel is fixedly connected with the inner ring, the mass block is fixedly connected with the outer ring.Compared with the relevant technologies, the height of magnet steel is increased dramatically in vibrating motor provided by the utility model, and vibration performance is more preferably.

Description

Vibrating motor

[technical field]

The utility model relates to technical field of motors more particularly to a kind of vibrating motors.

[background technique]

Vibrating motor is the component that a kind of production principle using electromagnetic force converts electrical energy into mechanical energy, and vibrating motor is logical Often be mounted in portable mobile apparatus, to generate vibrational feedback, such as mobile phone vibration or game machine vibrational feedback.

In the related technology, vibrating motor include the shell with accommodating space, the vibration that is contained in the accommodating space The driving unit of unit, the elastic component of the resilient support vibration unit and the driving vibration unit vibration, vibration unit packet Magnet steel and mass block are included, the center of mass block is equipped with through-hole, and magnet steel is contained in the through-hole, and passes through mass block one end The stage portion extended into through-hole is fixed, very big to limit the height of magnet steel, affects the vibration performance of vibrating motor.

Therefore, it is necessary to provide a kind of improved vibrating motor to solve the above problems.

[utility model content]

For vibrating motor in the related technology since the magnetic field for passing through driving unit is more dispersed, vibrating motor is influenced The technical issues of energy, the magnetic field that the utility model provides a kind of pair of magnet steel carry out the vibrating motor of good guide.

A kind of vibrating motor, including the shell with accommodating space, the vibration unit, the bullet that are contained in the accommodating space Property support the elastic component of the vibration unit and the driving unit of driving vibration unit vibration, the vibration unit includes tool The magnet steel for having the mass block of first through hole and being contained in the first through hole, the elastic component include and the fixed company of the shell The first fixed part for connecing, with the second fixed part of the first fixed part relative spacing setting and connect first fixed part and The elasticity arm of second fixed part, second fixed part flexibly support the magnet steel and the mass block, and described second is solid Determine the inner ring that portion includes the outer ring connecting with the elasticity arm and extends from the outer ring to the center of second fixed part, institute It states magnet steel to be fixedly connected with the inner ring, the mass block is fixedly connected with the outer ring.

Preferably, the magnet steel includes outer peripheral surface, and mass block includes enclosing the inner wall for being set as the first through hole, described interior Wall surface is bonded setting with the outer peripheral surface.

Preferably, the outer ring includes close to the first upper surface of the vibration unit, and the inner ring includes close to described Second upper surface of vibration unit, first upper surface are generally aligned in the same plane with second upper surface；The mass block packet Include the first lower surface close to the elastic component, the magnet steel includes close to the second lower surface of the elastic component described first Upper surface is bonded with first lower surface, and second upper surface is bonded with second lower surface.

Preferably, the position that the mass block corresponds to first fixed part is equipped with resigning portion, and the resigning portion is described in First following table is recessed away from the direction of the elastic component.

First upper surface, second upper surface and second lower surface are plane.

Preferably, the shell include shell open at one end, be covered on the shell open end cover board and patch Set on the limit glue of the cover board, the shell is cylinder, cooperatively forms the accommodating space with the cover board, described the One fixed part is located between the shell and the cover board, and the elasticity arm is suspended in the accommodating space.

Preferably, the cover board includes the cylindrical extension extended to form into accommodating space, the driving unit It is sheathed on the excircle of the extension.

Preferably, the driving unit includes and the spaced coil of the magnet steel and is attached at the coil close to institute The pole piece of one end of shell is stated, the coil and the pole piece are fixedly connected with the extension.

Preferably, the vibrating motor further includes flexible circuit board, and the flexible circuit board is connect with the coil, is used for Realize being electrically connected for the coil and extraneous power supply.

Compared with the relevant technologies, in vibrating motor provided by the utility model, the second fixed part of elastic component includes outer ring And inner ring, the magnet steel are fixedly connected with the inner ring, the mass block is fixedly connected with the outer ring, avoids the quality Block is used to fix the modelling feature of the magnet steel, makes the height of the magnet steel is available to be substantially improved, improves the vibration The vibration performance of motor.

[Detailed description of the invention]

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings, in which:

Fig. 1 is the structural schematic diagram of vibrating motor provided by the utility model；

Fig. 2 is the decomposition texture schematic diagram of vibrating motor shown in Fig. 1；

Fig. 3 is cross-sectional view of the vibrating motor shown in FIG. 1 along line A-A；

Fig. 4 is the attachment structure schematic diagram of magnet steel, mass block and elastic component.

[specific embodiment]

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work All other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of vibrating motor 100 comprising there is accommodating space Shell 1, the vibration unit 2, the elastic component 3 of the resilient support vibration unit 2, driving institute that are contained in the accommodating space State the driving unit 4 of the vibration of vibration unit 2 and the flexible circuit board 5 of the connection driving unit 4 and extraneous power supply.

The shell 1 includes shell 11 open at one end, the cover board 12 for the open end for being covered on the shell 11 and patch Set on the limit glue 13 of the cover board 12.The shell 11 is cylinder, and it is empty to cooperatively form the receiving with the cover board 12 Between.The limit glue 13 is fabricated from a flexible material, and for limiting the vibratory output of the vibration unit 2 and the elastic component 3, is avoided The undue oscillation of the vibration unit 2 and the elastic component 3.

The cover board 12 includes the extension 121 extended to form into accommodating space, and the extension 121 is cylindrical.

Fig. 3 and Fig. 4 is please referred to, the vibration unit 2 is for vibrating, specifically, the vibration unit 2 includes having first The mass block 21 of through-hole 10 and the magnet steel 22 for being contained in the first through hole 10 and having the second through-hole 20.It is understood that It is that the mass block 21 and the magnet steel 22 are hollow and annular, it is preferred that the outer diameter of the magnet steel 22 and the first through hole 10 match, and the correspondence of magnet steel 22 is installed in the first through hole 10, and is fixedly connected with 21 gluing of mass block.It is excellent Choosing, the first through hole 10 and the center line of second through-hole 20 are located along the same line.The magnet steel 22 is used in magnetic The lower vibration of power effect, the mass block 21 are used to reinforce the vibration of the magnet steel 22, improve the vibratility of the vibrating motor 100 Energy.

The mass block 21 includes connecting close to the first lower surface 211 of the elastic component 3 and with first lower surface 211 The outer peripheral surface 212 connect, the magnet steel 22 include that be set as described first close to the second lower surface 221 and enclosing of the elastic component 3 logical The inner wall 222 in hole 10, the inner wall 222 are bonded setting with the outer peripheral surface 212.

Further, the quality fast 21 includes resigning portion 30, and the resigning portion 30 is from first lower surface 211 to remote Direction recess from the elastic component 3.

The elastic component 3 flexibly supports the vibration unit 2, for reinforcing the vibration of the vibration unit 2.The elasticity Part 3 includes the first fixed part 31 being fixedly connected with the shell 1, second with 31 relative spacing of the first fixed part setting Fixed part 32 and the elasticity arm 33 for connecting first fixed part 31 and second fixed part 32, first fixed part 31 It is located between the shell 11 and the cover board 12, second fixed part 32 flexibly supports the mass block 21 and the magnetic Steel 22, the elasticity arm 33 are suspended in the accommodating space.The resigning portion 30 and 31 position of the first fixed part It is correspondingly arranged, resigning can be provided when the elastic component 3 vibrates, increase the vibratory output of the elastic component 3.

Further, second fixed part 32 includes the outer ring 321 connecting with the elasticity arm 33, from the outer ring 321 inner rings 322 extended to the center of second fixed part 32, the outer ring 321 and second fixed part 322 are in circle Ring-type, and the outer ring 321 and the inner ring 322 are integrally formed, the mass block 21 is fixedly connected with the outer ring 321, institute Magnet steel 22 is stated to be fixedly connected with the inner ring 322.

Further, the outer ring 321 includes close to the first upper surface 3211 of the vibration unit 2, the inner ring 322 include close to the second upper surface 3221 of the vibration unit 2, first upper surface 3211 and second upper surface 3221 be plane, and first upper surface 3211 is generally aligned in the same plane with second upper surface 3221, on described first Surface 3211 is bonded with first lower surface 211 and is fixedly connected using glue, second upper surface 3221 and described the Two lower surfaces 221 are bonded and are fixedly connected using glue.It is understood that one end of the magnet steel 22 and the elastic component 3 Connection, the other end is unrestricted, so that the height of the magnet steel 22 is increased dramatically, strengthens the vibrating motor 100 Vibration performance, while cemented surface is plane, it is ensured that biggish contact area, it is firm to connect, and the magnet steel 22 is not easy It falls off.On the other hand, reduce the modeling structure that the mass block 21 is used to fix the magnet steel 22, reduce difficulty of processing, Production cost is saved.

The driving unit 4 for driving the vibration unit 2 to vibrate, specifically, the driving unit 4 include with it is described The spaced coil 41 of magnet steel 22 and the pole piece 42 for being attached at the coil 41.The coil 41 and the pole piece 42 are hollow Cyclic structure, the coil 41 and the pole piece 42 be sheathed on the extension 121, and solid with the extension 121 Fixed connection.Further, the outer diameter of the coil 41 and the pole piece 42 is less than the internal diameter of second through-hole 20, i.e., the described magnetic Steel 22 is located on the excircle of the vibration unit 4, and second through-hole 20 provides for the driving unit 4 and keeps away position, Ke Yijie About oscillation space reduces the volume of the vibrating motor 100.

The coil 41 generates magnetic induction line after being powered, and interacts with magnetic induction line caused by the magnet steel 22, drives institute Magnet steel 22 is stated to move back and forth along its centerline direction.The pole piece 42 has been used for magnetic conduction effect.

The flexible circuit board 5 is connect with the coil 41, for realizing being electrically connected for the coil 41 and extraneous power supply.

Compared with the relevant technologies, in vibrating motor 100 provided by the utility model, the second fixed part 32 of elastic component 3 is wrapped Outer ring 321 and inner ring 322 are included, the magnet steel 22 is fixedly connected with the inner ring 322, the mass block 21 and the outer ring 322 It is fixedly connected, avoids the mass block 21 for fixing the modelling feature of the magnet steel 22, make the height of the magnet steel 22 can To be increased dramatically, the vibration performance of the vibrating motor 100 is improved.

Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical Novel protection scope.

Claims (9)

1. a kind of vibrating motor, including with accommodating space shell, be contained in the accommodating space vibration unit, elasticity The elastic component of the vibration unit and the driving unit of the driving vibration unit vibration are supported, the vibration unit includes having The mass block of first through hole and the magnet steel being contained in the first through hole, the elastic component include being fixedly connected with the shell The first fixed part, with the first fixed part relative spacing setting the second fixed part and connect first fixed part and institute State the elasticity arm of the second fixed part, which is characterized in that second fixed part flexibly supports the magnet steel and the mass block, institute The second fixed part is stated to include the outer ring connecting with the elasticity arm and extend from the outer ring to the center of second fixed part Inner ring, the magnet steel is fixedly connected with the inner ring, and the mass block is fixedly connected with the outer ring.

2. vibrating motor according to claim 1, which is characterized in that the magnet steel includes outer peripheral surface, and mass block includes enclosing It is set as the inner wall of the first through hole, the inner wall is bonded setting with the outer peripheral surface.

3. vibrating motor according to claim 1, which is characterized in that the outer ring includes close to the of the vibration unit One upper surface, the inner ring include on the second upper surface of the vibration unit, first upper surface and described second Surface is generally aligned in the same plane；The mass block includes close to the first lower surface of the elastic component, and the magnet steel includes close to institute State the second lower surface of elastic component, first upper surface is bonded with first lower surface, second upper surface with it is described The fitting of second lower surface.

4. vibrating motor according to claim 3, which is characterized in that the mass block corresponds to the position of first fixed part Resigning portion is installed, direction of the resigning portion from first following table away from the elastic component is recessed.

5. vibrating motor according to claim 3, which is characterized in that first upper surface, second upper surface and Second lower surface is plane.

6. vibrating motor according to claim 1, which is characterized in that the shell include shell open at one end, lid set In the open end of the shell cover board and be attached at the limit glue of the cover board, the shell is cylinder, and described Cover board cooperatively forms the accommodating space, and first fixed part is located between the shell and the cover board, the elastic force Arm sling is placed in the accommodating space.

7. vibrating motor according to claim 6, which is characterized in that the cover board includes extending to form into accommodating space Cylindrical extension, the driving unit is sheathed on the excircle of the extension.

8. vibrating motor according to claim 7, which is characterized in that the driving unit includes setting with the magnet steel interval It the coil set and is attached at the coil and prolongs with described close to the pole piece of one end of the shell, the coil and the pole piece Extending portion is fixedly connected.

9. vibrating motor according to claim 8, which is characterized in that the vibrating motor further includes flexible circuit board, institute It states flexible circuit board to connect with the coil, for realizing being electrically connected for the coil and extraneous power supply.