CN210350990U

CN210350990U - Linear vibration motor

Info

Publication number: CN210350990U
Application number: CN201920575447.XU
Authority: CN
Inventors: 陶锋; 凌芳华; 王俊生; 浦晓峰
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-04-17
Anticipated expiration: 2029-04-25

Abstract

The utility model provides a linear vibration motor, its including have accommodating space the shell, accept in oscillator and stator in the accommodating space and with the shell is connected and general the oscillator suspension in elastic support element in the accommodating space, the oscillator include with elastic support element fixed connection's quality piece, the quality piece includes and runs through along perpendicular to vibration direction the through-hole of quality piece and enclose and establish into the inner wall of through-hole, the inner wall facing is equipped with the first pole core of a pair of relative setting and the second pole core of a pair of relative setting, first pole core with the second pole core is fixed a position through unsmooth block. The utility model discloses a linear vibrating motor can improve utmost point core positioning's precision, reduces the degree of difficulty of assembly, has increased the fixed stability of utmost point core simultaneously.

Description

Linear vibration motor

[ technical field ] A method for producing a semiconductor device

The present invention relates to a linear vibration motor, and more particularly, to a linear motor for a portable consumer electronic product.

[ background of the invention ]

With the development of electronic technology, portable consumer electronic products, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment devices, are more and more sought after by people, and these electronic products generally use linear motors for system feedback, such as incoming call prompt, information prompt, navigation prompt, vibration feedback of game consoles, and the like.

In the correlation technique, linear motor includes the quality piece and pastes the pole piece of locating on the quality piece, but there is the positioning accuracy low, the stability of pole piece is not enough scheduling problem after the assembly in current pole piece structure in the assembling process.

Therefore, there is a need for a novel linear vibration motor.

[ Utility model ] content

The utility model provides a solve above-mentioned technical problem, and provide a novel linear vibration motor, its including have accommodating space the shell, accept in oscillator and stator in the accommodating space and with the shell is connected and will the oscillator suspension in elastic support element in the accommodating space, the oscillator include with elastic support element fixed connection's quality piece, the quality piece includes and runs through along perpendicular to vibration direction the through-hole of quality piece and enclose and establish into the inner wall of through-hole, the inner wall facing is equipped with the first pole core of a pair of relative setting and the second pole core of a pair of relative setting, first pole core with the second pole core is fixed a position through unsmooth block.

Preferably, the two ends of the first pole piece are provided with first protruding parts protruding towards the direction of the second pole piece, and the two ends of the second pole piece are provided with first concave parts clamped with the first protruding parts.

Preferably, the first pole piece both ends are equipped with the second recess portion of keeping away from the recess of second pole piece direction, second pole piece both ends be equipped with the second bulge of second recess portion block.

Preferably, the inner wall includes a pair of first side walls disposed opposite to each other and a pair of second side walls connected to the first side walls, the second pole core is attached to the second side walls, the first pole core is attached to the first side walls, and both ends of the first pole core extend to the second side walls.

Preferably, the inner wall is rectangular, the first side wall extends along a short axis, and the second side wall extends along a long axis.

Preferably, a gap is provided between the first pole piece and the second pole piece.

Preferably, the linear vibration motor further comprises a magnetic steel component, wherein the magnetic steel component comprises a pair of first magnetic steel components which are respectively attached to the first pole cores and a pair of second magnetic steel components which are respectively attached to the second pole cores.

Preferably, the stator includes an iron core fixed to the housing and a coil wound around the iron core, and the iron core is parallel to the second magnetic steel assembly.

Preferably, the housing includes a casing and a cover plate covering the casing, and the stator further includes pole shoes disposed at two ends of the core, and the pole shoes are fixed to the cover plate.

Preferably, the linear motor includes a stopper fixed to the cover plate, and the mass block is provided with a position avoiding portion for avoiding the stopper.

The utility model discloses a set up the unsmooth block location of first utmost point core and second utmost point core, improved the precision of utmost point core in the assembling process, reduced the degree of difficulty of assembly, simultaneously through unsmooth block structure, improved the stability of utmost point core after the assembly is accomplished.

[ description of the drawings ]

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

fig. 2 is an exploded perspective view of the linear vibration motor of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 4 is a schematic perspective view of a pole core according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a pole core according to another embodiment of the linear vibration motor of the present invention.

[ detailed description ] embodiments

The present invention will be further described with reference to fig. 1-5.

As shown in fig. 1 to fig. 3, for the utility model provides a novel linear vibration motor 100, it includes shell 1 with accommodating space 10, accept in oscillator 2 and stator 3 in the accommodating space and with shell 1 connects and will oscillator 2 suspension in elastic support element 4 in accommodating space 10, shell 1 includes casing 11 and cover connect in the apron 12 of casing 11, the fixed dog 121 that is provided with on apron 12.

As shown in fig. 1 to 3, the vibrator 2 includes a mass block 21 fixedly connected to the elastic supporting member 4, a yielding portion 211 is disposed on the mass block 21 for avoiding the stopper 121, the stopper 121 and the yielding portion 211 are disposed at an interval, and in a vibration process, the stopper 121 blocks the mass block 21 so as to effectively avoid performance degradation caused by too large deformation of the elastic supporting member 4. The mass 21 includes a through hole 212 penetrating through the mass 21 in a direction perpendicular to the vibration direction, and an inner wall 213 enclosing the through hole 212, wherein the inner wall 213 is rectangular and includes a pair of first sidewalls 214 extending along a short axis and disposed oppositely, and a pair of second sidewalls 215 extending along a long axis and connecting the first sidewalls 214. First pole piece 216 that first side wall 214 facing is equipped with a pair of relative setting, the both ends of first pole piece 216 all extend to second side wall 215, second side wall 215 facing is equipped with a pair of relative second pole piece 217 that sets up, linear vibration motor 100 still includes magnetic steel component 22, magnetic steel component 22 includes that a pair of subsides respectively are located first magnetic steel component 221 of first pole piece 216 and a pair of subsides respectively are located second magnetic steel component 222 of second pole piece 217.

As shown in fig. 4, first protruding portions 2161 protruding toward the second pole piece 217 are disposed at two ends of the first pole piece 216, and first recessed portions 2171 engaged with the first protruding portions 2161 are disposed at two ends of the second pole piece 217; as shown in fig. 5, in other alternative embodiments, the two ends of the first pole core 216 'are provided with second concave portions 2161' that are concave in the direction away from the second pole core 217 ', and the two ends of the second pole core 217' are provided with second convex portions 2171 'that are engaged with the second concave portions 2161'. First utmost point core 216 with second utmost point core 217 passes through unsmooth block location to improve utmost point core positioning's precision, reduced the degree of difficulty of assembly, further, after utmost point core assembly is accomplished, improved utmost point core's stability. A gap exists between the first pole piece and the second pole piece, so that the first pole piece 216 and the second pole piece 217 can be normally assembled through gap buffering errors under the condition that errors exist between the preparation size and the design size.

As shown in fig. 2 to 3, the stator 3 includes a core 3 fixed to the cover plate 12 and a coil 32 wound around the core 31, the core 31 is parallel to the second magnetic steel assembly 222, pole shoes 33 are disposed at two ends of the core 31, and the pole shoes 33 are fixed to the cover plate 12.

The utility model provides a linear vibration motor has improved the precision of utmost point core in the assembling process through setting up the unsmooth block location of first utmost point core and second utmost point core, has reduced the degree of difficulty of assembly, and through unsmooth block structure, the stability of utmost point core after the assembly is accomplished has been improved to the while.

The above embodiments of the present invention are only described, 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. The utility model provides a linear vibration motor, its including the shell that has accommodating space, accept in oscillator and stator in the accommodating space and with the shell is connected and will the oscillator suspension in elastic support element in the accommodating space, the oscillator include with elastic support element fixed connection's quality piece, the quality piece includes and runs through along the perpendicular to vibration direction the through-hole of quality piece and enclose and establish the inner wall of through-hole, the inner wall facing is equipped with the first pole core of a pair of relative setting and the second pole core of a pair of relative setting, its characterized in that, first pole core with the second pole core is fixed a position through unsmooth block.

2. The linear vibration motor according to claim 1, wherein first protruding portions protruding in a direction of the second pole core are provided at both ends of the first pole core, and first recessed portions engaged with the first protruding portions are provided at both ends of the second pole core.

3. The linear vibration motor according to claim 1, wherein second recessed portions recessed in a direction away from the second pole core are provided at both ends of the first pole core, and second protruding portions engaged with the second recessed portions are provided at both ends of the second pole core.

4. The linear vibration motor according to claim 2 or 3, wherein the inner wall includes a pair of first side walls disposed opposite to each other and a pair of second side walls connected to the first side walls, the second pole core is attached to the second side walls, the first pole core is attached to the first side walls, and both ends of the first pole core extend to the second side walls.

5. The linear vibration motor of claim 4, wherein the inner wall has a rectangular shape, the first side wall extends along a short axis, and the second side wall extends along a long axis.

6. The linear vibration motor according to claim 1, wherein a gap is provided between the first pole piece and the second pole piece.

7. The linear vibration motor of claim 1, further comprising a magnetic steel assembly, wherein the magnetic steel assembly comprises a pair of first magnetic steel assemblies respectively attached to the first pole piece and a pair of second magnetic steel assemblies respectively attached to the second pole piece.

8. The linear vibration motor of claim 7, wherein the stator includes a core fixed to the housing and a coil wound around the core, the core being parallel to the second magnetic steel assembly.

9. The linear vibration motor of claim 8, wherein the housing includes a case and a cover plate covering the case, and the stator further includes pole shoes provided at both ends of the core, the pole shoes being fixed to the cover plate.

10. The linear vibration motor of claim 9, wherein the linear vibration motor includes a stopper fixed to the cover plate, and the mass is provided with a relief portion for avoiding the stopper.