CN210867472U

CN210867472U - Linear vibration motor

Info

Publication number: CN210867472U
Application number: CN201921453779.7U
Authority: CN
Inventors: 杜盟
Original assignee: Shanghai Wentai Information Technology Co Ltd
Current assignee: Shanghai Wentai Information Technology Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-26
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a linear vibration motor, which is arranged on a carrier of electronic equipment and comprises a shell, a vibrator and a stator, wherein the vibrator and the stator are arranged in the shell; the shell is provided with an accommodating space for accommodating the vibrator and the stator and a pair of elastic pieces positioned in the accommodating space, the vibrator is suspended and fixed between the pair of elastic pieces, and the stator is arranged on the inner wall of the shell and is opposite to the vibrator at intervals so as to drive the vibrator to reciprocate after being electrified; the one end of casing still is seted up with accommodating space intercommunication and be used for the spread groove with the carrier joint, the other end of casing be equipped with be used for with carrier bolted connection's connecting plate, be equipped with on the carrier with the spread groove joint protruding, the one end of oscillator is equipped with the groove of keeping away that is used for avoiding protruding of card. The beneficial effects of the utility model reside in that: through set up spread groove and connecting plate at the casing, not only the equipment is respond well, and does benefit to the thickness that reduces linear vibration motor, and then does benefit to electronic equipment's frivolous design.

Description

Linear vibration motor

[ technical field ] A method for producing a semiconductor device

The utility model relates to a vibrating motor technical field especially relates to a linear vibration motor.

[ background of the invention ]

With the development of electronic technology, the silent prompt of incoming calls of electronic equipment such as mobile phones and tablet computers needs to remind users by means of vibration of a machine body, a component generating vibration is a built-in vibration motor, and a core device of small medical health care equipment such as a vibration massager is also a built-in vibration motor. At present, electronic devices such as mobile phones and tablet computers have higher and higher requirements for light weight and thinness due to market demands, however, the vibration motors in the prior art are not designed to reduce the thickness, and the light weight and thinness design of the electronic devices is affected.

In view of the above, it is desirable to provide a linear vibration motor to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The present invention is directed to a linear vibration motor, which is used to reduce the thickness of the linear vibration motor to facilitate the lightening and thinning of the electronic device using the linear vibration motor.

In order to achieve the above object, the present invention provides a linear vibration motor, which is mounted on a carrier of an electronic device, and includes a housing, and a vibrator and a stator which are built in the housing; the shell is provided with an accommodating space for accommodating the vibrator and the stator and a pair of elastic pieces positioned in the accommodating space, the vibrator is suspended and fixed between the pair of elastic pieces, and the stator is arranged on the inner wall of the shell and is opposite to the vibrator at intervals so as to drive the vibrator to reciprocate after being electrified; the one end of casing still seted up with accommodating space intercommunication and be used for with the spread groove of carrier joint, the other end of casing be equipped with be used for with carrier bolted connection's connecting plate, be equipped with on the carrier with the card of spread groove joint is protruding, the one end of oscillator is equipped with and is used for avoiding protruding groove of keeping away of card.

In a preferred embodiment, the housing includes an upper housing having the receiving space, and a lower housing engaged with the upper housing, the receiving space opens one side of the upper housing, the lower housing is plate-shaped and covers the opening of the upper housing, and the connecting groove and the connecting plate are respectively disposed at two ends of the lower housing.

In a preferred embodiment, the upper housing includes a bottom wall and a plurality of side walls extending from an edge of the bottom wall, and the bottom wall and the plurality of side walls enclose the accommodating space; the lower shell is close to one side of the upper shell, annular grooves clamped with the side walls are formed in the side, and the upper shell is covered at the opening of the upper shell through the clamping of the annular grooves and the side walls.

In a preferred embodiment, the side walls include a pair of first side walls disposed along a longitudinal direction of the housing and a pair of second side walls disposed along a width direction of the housing, the pair of elastic members are respectively welded to sides of the pair of second side walls that are close to each other, and the vibrator is fixed between the pair of elastic members along the longitudinal direction of the housing.

In a preferred embodiment, the vibrator comprises a pair of inertia blocks respectively connected with an elastic piece and a pair of permanent magnets connected between the pair of inertia blocks, wherein one inertia block faces the connecting groove and the clearance groove is formed at one end far away from the other inertia block.

In a preferred embodiment, the elastic members are arc-shaped, the middle part of each elastic member is welded and fixed with the corresponding second side wall, and two ends of each elastic member are connected with the end surfaces of the corresponding inertia blocks.

In a preferred embodiment, a pair of limit blocks located in the accommodating space and used for resisting the vibrator is further arranged on one side of the lower shell close to the upper shell; the limiting block is cuboid and is integrally formed with the lower shell.

In a preferred embodiment, the stator includes a pair of coils, the pair of coils are arranged at intervals along the length direction of the housing on one side of the lower housing close to the upper housing, and each coil is arranged opposite to one permanent magnet at intervals.

In a preferred embodiment, the clamping protrusion is L-shaped and comprises a limiting part connected with the carrier and a buckling part vertically connected with the limiting part, the limiting part is used for abutting against the inner wall of the connecting groove, and the buckling part is used for buckling one side of the lower shell, which is close to the upper shell.

In a preferred embodiment, the connecting plate is provided with a connecting hole for connecting the carrier, the carrier is provided with a screw hole corresponding to the connecting hole, and the connecting plate is connected with the carrier by a screw passing through the connecting hole and the screw hole.

The utility model discloses a set up spread groove and connecting plate at the casing for on the linear vibration motor can only just install electronic equipment through a screw, not only the equipment is respond well, and does benefit to the thickness that reduces linear vibration motor, and then does benefit to electronic equipment's frivolous design.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

Fig. 2 is an exploded perspective view of the linear vibration motor shown in fig. 1 at another angle.

Fig. 3 is a perspective sectional view of the linear vibration motor shown in fig. 1.

Fig. 4 is an enlarged view of the area a shown in fig. 3.

Fig. 5 is an enlarged view of the region B shown in fig. 3.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, the present invention provides a linear vibration motor 100, which is mounted on a carrier 200 of an electronic device, and mainly solves the problem that the thickness of the linear vibration motor 100 is large, so that the electronic device is not easy to be thinned.

In the embodiment of the present invention, the linear vibration motor 100 includes a housing 10, and a vibrator 20 and a stator 30 built in the housing 10. The housing 10 is provided with an accommodating space 101 for accommodating the vibrator 20 and the stator 30, and a pair of elastic members 102 located in the accommodating space 101, the vibrator 20 is suspended and fixed between the pair of elastic members 102, and the stator 30 is mounted on the inner wall of the housing 10 and is arranged opposite to the vibrator 20 at a distance so as to drive the vibrator 20 to reciprocate after being electrified, thereby causing vibration of the housing 10. Meanwhile, in order to facilitate the connection between the housing 10 and the carrier 200 of the electronic device, a connecting groove 103 communicated with the accommodating space 101 and used for being clamped with the carrier 200 is further formed in one end of the housing 10, a connecting plate 104 used for being bolted with the carrier 200 is arranged at the other end of the housing 10, correspondingly, a clamping protrusion 40 clamped with the connecting groove 103 is arranged on the carrier 200, and a clearance groove 201 used for avoiding the clamping protrusion 40 is formed in one end of the vibrator 20.

It can be understood that, when the one end of the housing 10 is fixed to the carrier 200 through the matching between the snap 40 and the connecting groove 103, the snap 40 is accommodated in the accommodating space 101 of the housing 10, and the vibrator 20 is also provided with the clearance groove 201 avoiding the snap 40, so that the snap 40 can fully benefit the inner space of the housing 10, the thickness of the housing 10 can be reduced, and the electronic device can be lightened and thinned. Meanwhile, the other end of the housing 10 is bolted to the carrier 200 of the electronic device through the connection plate 104, so that the housing 10 can be fixed to the corresponding carrier 200 only by one screw, and the linear vibration motor 100 can be conveniently disassembled and assembled, thereby improving the assembly efficiency of the electronic device and reducing the assembly cost of the electronic device.

In this embodiment, the snap 40 is L-shaped and includes a limiting portion 401 connected to the carrier 200 and a buckling portion 402 vertically connected to the limiting portion 401, the limiting portion 401 is used to abut against the inner wall of the connecting groove 103, and the buckling portion 402 is used to buckle one side of the lower case 12 close to the upper case 11; the connecting plate 104 is provided with a connecting hole 1041 for connecting the carrier 200, the carrier 200 is provided with a screw hole 403 corresponding to the connecting hole 1041, and the connecting plate 104 is connected with the carrier 200 by passing a screw through the connecting hole 1041 and the screw hole 403.

Further, in an embodiment, the housing 10 includes an upper housing 11 having a receiving space 101 and a lower housing 12 coupled to the upper housing 11, the receiving space 101 opens one side of the upper housing 11, the lower housing 12 is plate-shaped and covers the opening of the upper housing 11, and the connecting slot 103 and the connecting plate 104 are respectively disposed at two ends of the lower housing 12. It is understood that the lower case 12 is used to fix the case 10 to the carrier 200 of the electronic device, and thus the plate-shaped lower case 12 facilitates to reduce the thickness of the case 10, thereby facilitating to lighten the weight of the electronic device.

Preferably, the upper housing 11 includes a bottom wall 111 and a plurality of side walls 112 formed by extending from edges of the bottom wall 111, and an accommodating space 101 is defined between the bottom wall 111 and the plurality of side walls 112; the lower casing 12 is provided with a ring groove 121 engaged with the plurality of side walls 112 at a side close to the upper casing 11, and the upper casing 11 is covered at the opening of the upper casing 11 by the engagement of the ring groove 121 and the side walls 112, so that the structure is simple, the production and the manufacture are facilitated, and the production cost of the linear vibration motor 100 can be reduced.

Further, in one embodiment, the vibrator 20 is disposed in the accommodating space 101 along the length direction of the housing 10, so that the vibrator 20 can have a larger movement stroke, which is beneficial for the linear vibration motor 100 to generate a larger vibration sense. Specifically, the side walls 112 of the upper housing 11 include a pair of first side walls 1121 disposed along the length direction of the housing 10 and a pair of second side walls 1122 disposed along the width direction of the housing 10, the pair of elastic members 102 are respectively welded to the sides of the pair of second side walls 1122 close to each other, and the vibrator 20 is fixed between the pair of elastic members 102 along the length direction of the housing 10, that is, the housing 10 is rectangular, which is not only beneficial to the simple structure and the production, but also convenient to disassemble and assemble, and can improve the production efficiency of the linear vibration motor 100.

In this embodiment, the vibrator 20 includes a pair of inertia blocks 21 respectively connected to one elastic member 102 and a pair of permanent magnets 22 connected between the pair of inertia blocks 21, wherein one of the inertia blocks 21 faces the connection groove 103 and has a clearance groove 201 at an end away from the other inertia block 21, the stator 30 includes a pair of coils 31, the pair of coils 31 are spaced apart from each other along the length direction of the housing 10 at a side of the lower housing 12 close to the upper housing 11, and each coil 31 and one of the permanent magnets 22 are spaced apart from each other and are disposed opposite to each other for driving the permanent magnets 22 and driving the inertia blocks 21 to reciprocate.

Preferably, in order to improve the stability of the vibrator 20, the elastic member 102 is arc-shaped, the middle of each elastic member 102 is welded and fixed to the corresponding second side wall 1122, and two ends of each elastic member 102 are connected to the end surfaces of the corresponding inertia blocks 21, so that two stress areas are disposed between each elastic member 102 and the corresponding inertia block 21, which can improve the connection stability between the elastic member 102 and the corresponding inertia block 21, thereby improving the motion stability of the vibrator 20, further improving the service life of the linear vibration motor 100, and certainly, more than two stress areas can be disposed between the elastic member 102 and the inertia block 21.

Preferably, in order to better improve the vibration of the linear vibration motor 100, a pair of stoppers 122 located in the accommodating space 101 and used for stopping the vibrator 20 is further disposed on one side of the lower housing 12 close to the upper housing 11, so that the vibrator 20 can alternately strike the pair of stoppers 122 when driven by the stator 30 to reciprocate, and the housing 10 generates a larger vibration. In the present embodiment, the stopper 122 is formed in a rectangular parallelepiped shape and is integrally formed with the lower case 12, so that the production time of the lower case 12 can be reduced, and the production efficiency of the linear vibration motor 100 can be improved.

To sum up, the utility model provides a linear vibration motor 100 is through setting up spread groove 103 and connecting plate 104 at casing 10 for linear vibration motor 100 not only can just install electronic equipment through a screw on, not only the equipment is respond well, and does benefit to the thickness that reduces linear vibration motor 100, and then does benefit to electronic equipment's frivolous design.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A linear vibration motor is arranged on a carrier of electronic equipment and is characterized by comprising a shell, a vibrator and a stator, wherein the vibrator and the stator are arranged in the shell; the shell is provided with an accommodating space for accommodating the vibrator and the stator and a pair of elastic pieces positioned in the accommodating space, the vibrator is suspended and fixed between the pair of elastic pieces, and the stator is arranged on the inner wall of the shell and is opposite to the vibrator at intervals so as to drive the vibrator to reciprocate after being electrified; the one end of casing still seted up with accommodating space intercommunication and be used for with the spread groove of carrier joint, the other end of casing be equipped with be used for with carrier bolted connection's connecting plate, be equipped with on the carrier with the card of spread groove joint is protruding, the one end of oscillator is equipped with and is used for avoiding protruding groove of keeping away of card.

2. The linear vibration motor of claim 1, wherein the housing includes an upper housing having the receiving space and a lower housing engaged with the upper housing, the receiving space opens one side of the upper housing, the lower housing is formed in a plate shape and covers the opening of the upper housing, and the connecting groove and the connecting plate are respectively provided at both ends of the lower housing.

3. The linear vibration motor of claim 2, wherein the upper housing includes a bottom wall and a plurality of side walls extending from an edge of the bottom wall, and the bottom wall and the plurality of side walls enclose the receiving space therebetween; the lower shell is close to one side of the upper shell, annular grooves clamped with the side walls are formed in the side, and the upper shell is covered at the opening of the upper shell through the clamping of the annular grooves and the side walls.

4. The linear vibration motor according to claim 3, wherein the plurality of side walls include a pair of first side walls disposed along a longitudinal direction of the housing and a pair of second side walls disposed along a width direction of the housing, the pair of elastic members are respectively welded to sides of the pair of second side walls that are close to each other, and the vibrator is fixed between the pair of elastic members along the longitudinal direction of the housing.

5. The linear vibration motor of claim 4, wherein the vibrator includes a pair of inertia blocks respectively coupled to an elastic member and a pair of permanent magnets coupled between the pair of inertia blocks, one of the inertia blocks facing the coupling groove and having the escape groove at an end thereof remote from the other inertia block.

6. The linear vibration motor of claim 5, wherein the elastic members have a circular arc shape, and a middle portion of each elastic member is welded to the corresponding second sidewall, and both ends of each elastic member are connected to end surfaces of the corresponding mass.

7. The linear vibration motor of claim 6, wherein a pair of stoppers are disposed on one side of the lower case close to the upper case, the stoppers being disposed in the receiving space and adapted to abut against the vibrator; the limiting block is cuboid and is integrally formed with the lower shell.

8. The linear vibration motor of claim 7, wherein the stator includes a pair of coils spaced apart from each other along a length direction of the housing on a side of the lower housing adjacent to the upper housing, and each coil is spaced apart from and opposed to one of the permanent magnets.

9. The linear vibration motor of claim 2, wherein the locking protrusion is L-shaped and includes a limiting portion connected to the carrier and a locking portion vertically connected to the limiting portion, the limiting portion is configured to abut against an inner wall of the connecting groove, and the locking portion is configured to lock one side of the lower housing close to the upper housing.

10. The linear vibration motor of claim 1, wherein the connection plate is formed with a connection hole for connecting the carrier, the carrier is formed with a screw hole corresponding to the connection hole, and the connection plate is connected to the carrier by a screw passing through the connection hole and the screw hole.