CN207530692U - A kind of linear vibration motor - Google Patents

Abstract

The utility model discloses a kind of linear vibration motor, stator module, vibrator component and the elastic supporting member for supporting optical member being fixed on including housing, receiving in housing；Vibrator component includes clump weight and the first magnet assembly and the second magnet assembly that are housed in clump weight；First magnet assembly includes at least the two pieces of magnets set along the second direction；Along the first direction, and the magnetizing direction of each magnet is opposite for the magnetizing direction of first magnet assembly magnet；Second magnet assembly includes at least is symmetrically disposed on two pieces of magnets of the first magnet assembly both sides in a second direction, and in a second direction, and the magnetizing direction of each magnet is opposite for the magnetizing direction of the second magnet assembly magnet；Each magnet of first magnet assembly is identical with the polarity of each magnet abutting end of the second magnet assembly being provided adjacent to.Vibrating motor twin coil provided by the utility model can form unidirectional driving force under unidirectional magnetic direction so that the driving force bigger of linear vibration motor.

Description

A kind of linear vibration motor

Technical field

The utility model is related to technical field of electronic products.More particularly, to a kind of linear vibration motor.

Background technology

With the development of the communication technology, portable electronic product, such as mobile phone, handheld device or palm multimedia recreation Equipment etc. enters people’s lives.In these portable electronic products, generally system feedback can be done with vibrating motor, Such as vibrational feedback of the incoming call prompting of mobile phone, game machine etc..With the fast development of consumption electronic product, increasingly requirement is shaken Dynamic motor has higher vibration sense, faster landing time, the frequency bandwidth of bigger.

The direction of vibration for the linear vibration motor used in the relevant technologies is generally horizontal long axis direction, generally all includes The vibrator component and elastic supporting member for supporting optical member being contained in housing.Elastic supporting member for supporting optical member is used to the vibrator component being suspended in the housing It is interior, not only restoring force is provided for vibrator component, also provide the support force for being suspended in space.Traditional linear vibration motor Mostly using single layer coil, individual layer magnetic structure, magnetic circuit is fixed together with clump weight, and under electromagnetism power drive, clump weight can It is of reciprocating vibration.Current product structure, it is difficult to realize terminal user to linear vibration motor, large driving force, quick response and Wide band needs.

Accordingly, it is desirable to provide a kind of wideband vibrating motor with large driving force of new construction, to overcome prior art institute There are the defects of.

Utility model content

In view of the above problems, problem to be solved in the utility model is to provide a kind of new linear vibration motor structure, should Linear vibration motor has the identical twin coil magnetic structure in input current direction, and twin coil is under unidirectional magnetic direction Magnetic field intensity can be made full use of, forms unidirectional driving force so that the driving force bigger of linear vibration motor effectively subtracts The small response time, improve product applies bandwidth.

In order to solve the above technical problems, the utility model uses following technical proposals：

A kind of linear vibration motor, the motor include housing, accommodate the stator module being fixed in housing, vibrator component And it is used to support the elastic supporting member for supporting optical member of the vibrator component；

The direction of vibration of the vibrator component in the horizontal plane is defined as first direction, the vibrator component is perpendicular to water The direction of plane is second direction；

The vibrator component includes clump weight and the first magnet assembly and the second magnet assembly that are housed in clump weight；

First magnet assembly includes at least the two pieces of magnets set along the second direction；First magnet assembly The magnetizing direction of magnet is along the first direction, and the magnetizing direction of each magnet of the first magnet assembly is opposite；

Second magnet assembly includes at least and is symmetrically disposed on first magnet assembly two in this second direction Two pieces of magnets of side, the magnetizing direction of the second magnet assembly magnet is along the second direction, and each magnetic of the second magnet assembly The magnetizing direction of body is opposite；

Each magnet of first magnet assembly is identical with the polarity of each magnet abutting end of the second magnet assembly being provided adjacent to.

Further, it is preferable to which scheme is, the stator module includes coil and flexible PCB, and coil passes through flexible PCB On circuit connected with external circuit；The coil-winding plane is parallel with horizontal plane, and the extension of the main driving edge of coil Direction and the first direction and the second direction are vertical.

Further, it is preferable to which scheme is, the stator module includes two coils；

Two coils are symmetrically disposed on the both sides up and down of the vibrator component in said first direction, and two coils Input current direction is identical.

Further, it is preferable to which scheme is, the flexible PCB is between the coil and case inside wall, the flexibility Include protrusion that is corresponding with hollow-out parts among the coil and stretching into hollow-out parts among the coil on circuit board；It is described Include the pad of connection coil lead on the inner surface of protrusion.

Further, it is preferable to which scheme is, the protrusion prolongs its extending direction by the flexible PCB ontology and is bent to form.

Further, it is preferable to which scheme is, the stator module further includes two and is located at respectively on the outside of two coils of coil block Magnetic conduction sheet；

The magnetic conduction sheet includes two magnetic conduction edge and two magnetic-conductance portions is connected as one between two magnetic-conductance portions The connecting portion of body；Two magnetic conduction edge correspond to two main driving edge of the coil respectively；

Wherein, the inner surface of the magnetic conduction sheet magnetic conduction edge is bonded fixation, the company with the outer surface of the coil Socket part is accommodated in the sunk area formed by protrusion of flexible PCB outer surface, and the inner surface of the connecting portion Fixation is bonded with the outer surface of protrusion.

Further, it is preferable to scheme is, the flexible PCB further included it is corresponding with the coil, by flexible PCB The extension that body edges extend outward along the first direction, between the inner surface of the extension and the outer surface of coil There are the gaps for coil lead fair line.

Further, it is preferable to which scheme is, the elastic supporting member for supporting optical member includes being located at the inner walls and the vibrator component end Between portion, the vibrator component the first elastic supporting member for supporting optical member of linear reciprocal movement and the second resilient support along the first direction are supported Part.

Further, it is preferable to which scheme is, the housing includes complementing each other to form first shell, the second shell of accommodating cavity With third housing；

Wherein described first shell and third housing are platy structure, and the second shell is four by being bent to form At the top of face closure and bottom has the cavity body structure of opening；

The first shell is separately fixed at third housing at the top open part and bottom opening of second shell.

Further, it is preferable to scheme is, the flexible PCB ontology is from hull outside along the third case inside surface And second shell inner surface extends to first shell inner surface.

The beneficial effects of the utility model are as follows：

Compared to existing linear vibration motor, in linear vibration motor provided by the utility model, magnetic circuit system packet The first magnet assembly and the second magnet assembly are included, two magnet assemblies can form magnetic direction as unidirectional efficient magnetic , and linear vibration motor provided by the utility model has two identical coils of input current direction, two coils lead to A flexible PCB series connection conducting is crossed, two coils can make full use of magnetic field intensity under unidirectional magnetic direction, And unidirectional driving force is formed under unidirectional magnetic direction so that the driving force bigger of linear vibration motor subtracts Small response time, the broadening working band of product.

In addition, in linear vibration motor provided by the utility model, also improved, made by the structure to flexible PCB Magnetic conduction sheet can further be set on the outside of coil by obtaining, and magnetic conduction sheet can be used for correcting magnetic circuit system magnetic strength wire shaped, so that more Magnetic induction line passes through coil, so as to increase magnetic induction intensity, further enhances the driving force of the linear vibration motor.

Description of the drawings

Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 shows that the utility model provides the stereoscopic figure of linear vibration motor.

Fig. 2 shows the Standard figures that the utility model provides linear vibration motor.

Fig. 3 shows that the utility model provides the structure sectional view of linear vibration motor.

Fig. 4 shows that the utility model provides vibrator component and stator module configuration structure schematic diagram in linear vibration motor One of.

Fig. 5 shows that the utility model provides vibrator component and stator module configuration structure schematic diagram in linear vibration motor Two.

Fig. 6 shows that the utility model provides the structure chart of flexible PCB in linear vibration motor.

Fig. 7 shows that the utility model provides the structure chart of magnetic conduction sheet in linear vibration motor.

Specific embodiment

In description given below, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiment, Numerous specific details are set forth.It may be evident, however, that these implementations can also be realized without these specific details Example.In other examples, one or more embodiment for ease of description, well known structure and equipment are in block form an It shows.

Used " clump weight " may also be referred to as " mass block " in the description of following specific embodiments, refer both to and magnetic One of component that body and resilient support assemblies cooperation are vibrated in motor shell.In addition, present invention is mainly used in description The improvement for the linear vibration motor used may also be referred to as horizontal linear vibrating motor or X to linear vibration motor, and also not arrange Except the technology in invention is applied to large-scale vibrating motor, but for the convenience of statement, in the description of the embodiments below, tool Body is illustrated by taking linear vibration motor as an example.

In order to illustrate more clearly of the utility model, with reference to preferred embodiment and attached drawing the utility model is done into The explanation of one step.But it should be recognized that in order to make it easy to understand, involved in the utility model such as " outer surface ", " inside table The descriptions such as face ", " bottom end ", " top ", " left end ", " right end ", are only the explanations that pattern is provided with reference to attached drawing, are not intended to Limitation, persons skilled in the art are it is understood that when motor placement position changes in the utility model, Wen Zhong Involved corresponding description and word should be subject to its practical function played in motor.

With reference to shown in Fig. 1,2,3, the utility model provides a kind of linear vibration motor, and the motor includes housing 1, receiving Stator module, vibrator component and the elastic supporting member for supporting optical member for being used to support the vibrator component being fixed in housing 1；For the ease of Understand, define the direction of vibration of the vibrator component in the horizontal plane as first direction, the vibrator component is perpendicular to level The direction in face is second direction.It should be noted that the first direction defined here is mutual for three in rectangular coordinate system in space X-direction in vertical X-axis, Y-axis, Z axis, specific reference to shown in Fig. 3, the first direction defined in present embodiment is X Axis direction, second direction are Z-direction.

Wherein referring to Fig. 1, Fig. 2, the housing 1 includes complementing each other to form first shell 11, the second shell of accommodating cavity Body 12 and third housing 13；Here first shell 11, second shell 12 and third housing 13 may also be usually said upper casing, Middle shell and lower casing, the utility model are not limited this.In the shell structure that present embodiment is provided, the first shell Body 11 and third housing 13 are platy structure, and the second shell 12 is passes through the four sides closure tip being bent to form and bottom Cavity body structure with opening；The first shell 11 is separately fixed at the top open part of second shell 12 with third housing 13 At bottom opening.Only include two-part shell structure relative to traditional stretching integral is molding, present embodiment is carried The shell structure of confession, the assembling between stator module of being more convenient for, vibrator component and support component and housing is simple for process, Cost is lower, and the housing may be used permeability magnetic material and be made, and can further improve the driving force of motor, expands motor frequency Bandwidth.

In addition, in present embodiment, the elastic supporting member for supporting optical member includes being located at 1 inner wall of housing and the vibrator component end Between portion, the vibrator component the first elastic supporting member for supporting optical member 100 of linear reciprocal movement and the second elasticity along the first direction are supported Support element 200, the first elastic supporting member for supporting optical member 100 and the second elastic supporting member for supporting optical member 200 can be about vibrator component in a second direction Central axis axisymmetricly set or be centrosymmetric about the central axis of vibrator component in a second direction Setting, 100 and second elastic supporting member for supporting optical member 200 of the first elastic supporting member for supporting optical member mentioned here can be with spring or shrapnel, this practicality It is novel that this is not limited.

Jointly shown referring to Fig. 2,3, the vibrator component that present embodiment is provided includes clump weight 2 and is housed in The first magnet assembly and the second magnet assembly in clump weight 2；For the ease of clearly describing, by the first magnetic in present embodiment The magnet in magnet and the second magnet assembly in body component separate mark, and with the first magnet 3, the second magnet 4, the Three magnets 5 and the 4th magnet 6 are illustrated respectively, specifically, first magnet assembly is included at least along the second direction The first magnet 3 and the second magnet 4 of setting；The magnetizing direction of first magnet, 3 and second magnet 4 along the first direction, And the magnetizing direction of 3 and second magnet 4 of the first magnet is opposite.

Second magnet assembly is included at least is symmetrically disposed on the first magnet assembly both sides in the second direction 5 and the 4th magnet 6 of third magnet, the magnetizing direction of 5 and the 4th magnet 6 of third magnet is along the second direction, and described The magnetizing direction of three magnets 5 and the 4th magnet 6 is opposite；Each magnet of first magnet assembly and the second magnet group being provided adjacent to The polarity of each magnet abutting end of part is identical.It is understood that magnet mentioned here broadly for be can attract iron, The object, in particular to magnet or magnet steel of the substances such as cobalt, nickel.

It is shown in Figure 3 go out, in present embodiment, position is located above in a second direction in the first magnet assembly Magnet for the first magnet 3, the magnet positioned at lower position is the second magnet 4；In second magnet assembly in a second direction Magnet positioned at the first magnet assembly left end is third magnet 5, and the magnet positioned at the first magnet assembly right end is the 4th magnet 6.

It is understood that the magnetizing direction of the first magnet 3 and the second magnet 4 is along the first direction, that is to say, that magnetic N poles, the S poles of body are distributed in a first direction；The magnetizing direction of first magnet 3 and the second magnet 4 is on the contrary, show such as the first magnet 3 along the first direction positive direction magnetize, then then negative direction magnetizes the second magnet 4 along the first direction, specific to present embodiment, In one direction positive direction, the first magnet 3 is arranged in the way of-N the poles of S poles, and the second magnet 4 is in the way of-S the poles of N poles Arrangement.Similarly, the magnetizing direction of 5 and the 4th magnet 6 of third magnet is along the second direction, that is to say, that N poles, the S poles of magnet Distribution is in a second direction；Specific to present embodiment, in second direction positive direction, third magnet 5 is according to N poles-S poles Mode is arranged, and the 4th magnet 6 is arranged in the way of-N the poles of S poles.

Pass through the arrangement of above-mentioned magnet so that two magnet groups in linear vibration motor provided by the utility model Part can form magnetic direction as unidirectional efficient magnetic field, and the ampere of driving can be generated with the fitting coils of corresponding configuration Power can make coil make full use of magnetic field intensity under unidirectional magnetic direction, and under unidirectional magnetic direction Form unidirectional driving force.

In addition, the vibrator component in present embodiment can also be by setting magnetic conductive board to be used for correcting magnetic induction line, Jin Erzeng Strong magnetic induction intensity, the position of magnetic conductive board can be set to the first magnet assembly and the second magnet assembly non-corresponding coil sides or Person is arranged between the combined magnet of any two.The shape of magnetic conductive board can be platy structure or and magnetic The bowl structure of body adaptation, as long as the component that can play the role of amendment magnetic strength wire shaped and enhancing magnetic induction intensity is being retouched The row stated, the utility model are without limitation.

Further, in linear vibration motor provided by the utility model, the stator module includes coil and flexibility Circuit board 8,8 ontology of flexible PCB is from hull outside along 13 inner surface of third housing and the inside of second shell 12 Surface extends to 11 inner surface of first shell, and coil is connected by the circuit on flexible PCB 8 with external circuit；Wherein institute State that coil-winding plane is parallel with horizontal plane, and the extending direction of the main driving edge of coil and the first direction and described the Two directions are vertical.It should be noted that it will be appreciated by persons skilled in the art that coil-winding plane, should be coil line Plane where the circular direction of the axis of coiling.The main driving edge of coil described here is interpreted as and magnet polarities side To the vertical edge that main driving force is played in motor.Specific in present embodiment, the stator module includes Two coils；For the ease of clearly describing, by two coils with 71 and second coil 72 of first coil carry out separate mark and Description, it is to be understood that, under the premise of without prejudice to the present utility model purpose, 71 and second coil 72 of first coil should With identical structural form.

Specifically, shown in Figure 3,71 and second coil 72 of first coil is symmetrically disposed on described in the first direction The both sides up and down of vibrator component a, that is to say, that combination in 71 and second coil 72 of first coil is fixed on first shell 11 inner surfaces and the corresponding position of the vibrator component, another with reference to be fixed on 13 inner surface of third housing with it is described The corresponding position of vibrator component.It is and same in order to make to be formed under 71 and second coil of first coil, 72 unidirectional magnetic direction The driving force in one direction, first coil 71 is identical with the input current direction of the second coil 72, i.e. two coils in magnetic field by To the reaction force of driving force the vibrator component of the linear vibration motor is driven to move along the first direction.As described above, by In the efficient magnetic field that first magnet 3, the second magnet 4,5 and the 4th magnet 6 of third magnet are formed, two input current directions are identical Coil can make full use of magnetic field intensity, compared to the magnetic structure form of unilateral coil, the magnetic structure form of twin coil The utilization rate in magnetic field can be obviously improved, and then improve the application bandwidth of motor.

In present embodiment, the flexible PCB 8 is located between 1 madial wall of the coil and housing, flexible PCB 8 71 and second coil 72 of first coil of vibrator component both sides can be effectively connected, bilateral coil signal loading can be met； In addition two coils are serially connected conducting by a flexible PCB, for coil input direction same current and can fill Divide and provided the foundation using magnetic field intensity.

Specifically, further illustrated with reference to Fig. 4, Fig. 5 and Fig. 6, include on the flexible PCB 8 in the coil Between hollow-out parts it is corresponding and stretch into the protrusion of hollow-out parts among the coil, with reference to shown in Fig. 6, specifically, the flexible electrical Include the first protrusion 81 corresponding with 71 intermediate hollow-out parts of first coil on road plate 8 and with being engraved among the second coil 72 Corresponding second protrusion 82 in empty portion；Wherein the first protrusion 81 prolongs the bending of its extending direction by 8 ontology of flexible PCB It is formed, the second protrusion 82 is located at the end of flexible PCB 8, and prolongs its extension again by 8 ontology of flexible PCB Direction is bent to form；Its point is connected in addition, including on the inner surface of 81 and second protrusion 82 of the first protrusion The pad of not corresponding coil lead.

In linear vibration motor provided by the utility model, set by the structure of protrusion on above-mentioned flexible PCB Meter, can be under conditions of enclosure interior space or increase motor integral outer structure size not be occupied additionally, in first coil With setting magnetic conduction sheet further on the outside of the second coil, magnetic conduction sheet can be used for correcting magnetic circuit system magnetic strength wire shaped, so that more Magnetic induction line passes through coil, so as to increase magnetic induction intensity, further enhances the driving force of the linear vibration motor.

With reference to shown in Fig. 7, Fig. 7 shows that fitting is fixed on the structure diagram of magnetic conduction sheet on the outside of first coil, needs to illustrate , the structure example for being only fixed on 72 outside magnetic conduction sheet of first coil in present embodiment with fitting illustrates, and is bonded and fixes Magnetic conduction sheet in 71 outside of the second coil has identical structure with the magnetic conduction sheet that fitting is fixed on 72 outside of first coil, only Deposit the difference of arranged direction in the horizontal plane.Specifically, the stator module includes two is located at first coil 71 and the respectively The magnetic conduction sheet 9 in 72 outside of two coil；The magnetic conduction sheet 9 includes two magnetic conduction edge 91 and will between two magnetic-conductance portions 91 The connecting portion 92 that two magnetic-conductance portions 91 are connected as one；Two magnetic conduction edge 91 correspond to two main driving sides of the coil respectively Portion；Wherein, the inner surface of the 9 magnetic conduction edge 91 of magnetic conduction sheet is bonded fixation, the connection with the outer surface of the coil Portion 92 is accommodated in the sunk area formed by protrusion of 8 outer surface of flexible PCB, and the inside of the connecting portion 92 Surface is bonded fixation with the outer surface of protrusion.

In addition, 71 and second coil of first coil, 72 outer surface and 11 inner surface of housing after magnetic conduction sheet are set outside coil Between be formed with clearance space, coil lead by coil outer ledge through the clearance space, by coil outer surface fair line to line It is connect at the intermediate hollow-out parts of circle with the pad on flexible PCB protrusion, during the motor vibrations in coil lead and housing Side surface is in direct contact friction, easily generates harmful effect to motor；And then preferably, the flexible PCB 8 further included with The coil is corresponding, the extension 83 extended outward along the first direction by 8 body edges of flexible PCB, the extension There are the gaps for coil lead fair line between 83 inner surface and the outer surface of coil.It should be noted that referring to Fig. 2 And Fig. 4, the position of the coil lead fair line are preferably located on the corner positions of coil, are convenient for 9 magnetic conduction edge of magnetic conduction sheet The amendment of 91 pairs of magnetic circuit system magnetic strength wire shapeds, so that more magnetic induction lines pass through the main driving edge of coil, so as to increase magnetic Induction.Corresponding, the extension 83 should extend to position corresponding with coil lead fair line, it is possible to understand that It is that should include the missing portion 911 for avoiding extension 83 in 9 magnetic conduction edge 91 of magnetic conduction sheet, so that extension is to coil lead It blocks and combination therebetween is fixed.The preferred embodiment utilizes the setting of extension, in motor assembling, coil lead It can be fixed on beforehand through the mode of bonding on 83 inner surface of extension, and be assembled in vibrator component and stator module with housing After the completion, coil lead can closely pressing be fixed on coil outer surface and 83 inside table of extension by case inside surface Between face, avoid coil lead and be in direct contact friction with case inside surface, the harmful effect generated to motor.

In conclusion the utility model provides linear vibration motor, the twin coil magnetic for having input current direction identical Line structure, twin coil can make full use of magnetic field intensity under unidirectional magnetic direction, form unidirectional driving force, So that the driving force bigger of linear vibration motor, effectively reduces the response time, improve product applies bandwidth.In addition this reality It is also improved with novel by the structure to flexible PCB so that magnetic conduction sheet can be further added on the outside of coil, magnetic conduction sheet is repaiied Just magnetic circuit system magnetic strength wire shaped so that more magnetic induction lines pass through coil, increase magnetic induction intensity, further enhance horse The driving force reached.

Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and It is not the restriction to the embodiment of the utility model, for those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here, It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model The row of protection domain.

Claims (10)

1. a kind of linear vibration motor, which is characterized in that the motor includes housing, accommodates the stator pack being fixed in housing Part, vibrator component and the elastic supporting member for supporting optical member for being used to support the vibrator component；

The direction of vibration of the vibrator component in the horizontal plane is defined as first direction, the vibrator component is perpendicular to horizontal plane Direction be second direction；

The vibrator component includes clump weight and the first magnet assembly and the second magnet assembly that are housed in clump weight；

First magnet assembly includes at least the two pieces of magnets set along the second direction；The first magnet assembly magnet Magnetizing direction along the first direction, and the magnetizing direction of each magnet of the first magnet assembly is opposite；

Second magnet assembly includes at least and is symmetrically disposed on the first magnet assembly both sides in this second direction Two pieces of magnets, the magnetizing direction of the second magnet assembly magnet is along the second direction, and each magnet of the second magnet assembly Magnetizing direction is opposite；

Each magnet of first magnet assembly is identical with the polarity of each magnet abutting end of the second magnet assembly being provided adjacent to.

2. a kind of linear vibration motor according to claim 1, which is characterized in that the stator module includes coil and soft Property circuit board, coil are connected by the circuit on flexible PCB with external circuit；The coil-winding plane is put down with horizontal plane Row, and the extending direction of the main driving edge of coil and the first direction and the second direction are vertical.

3. a kind of linear vibration motor according to claim 2, which is characterized in that the stator module includes two lines Circle；

Two coils are symmetrically disposed on the both sides up and down of the vibrator component, and the input of two coils in said first direction Current direction is identical.

4. a kind of linear vibration motor according to claim 2, which is characterized in that the flexible PCB is located at the line Between circle and case inside wall, include corresponding with hollow-out parts among the coil on the flexible PCB and stretch into described The protrusion of hollow-out parts among coil；Include the pad of connection coil lead on the inner surface of the protrusion.

5. a kind of linear vibration motor according to claim 4, which is characterized in that the protrusion is by the flexible circuit Plate ontology prolongs its extending direction and is bent to form.

6. a kind of linear vibration motor according to claim 4, which is characterized in that the stator module further includes two points Magnetic conduction sheet that Wei Yu be on the outside of two coils of coil block；

The magnetic conduction sheet includes two magnetic conduction edge and between two magnetic-conductance portions is connected as one two magnetic-conductance portions Connecting portion；Two magnetic conduction edge correspond to two main driving edge of the coil respectively；

Wherein, the inner surface of the magnetic conduction sheet magnetic conduction edge is bonded fixation, the connecting portion with the outer surface of the coil Be accommodated in the sunk area formed by protrusion of flexible PCB outer surface, and the inner surface of the connecting portion with it is grand The outer surface fitting in the portion of rising is fixed.

7. a kind of linear vibration motor according to claim 2, which is characterized in that

The flexible PCB further included it is corresponding with the coil, it is outside along the first direction by flexible PCB body edges The extension extended, there are between coil lead fair line between the inner surface of the extension and the outer surface of coil Gap.

8. a kind of linear vibration motor according to claim 1, which is characterized in that

The elastic supporting member for supporting optical member is included between the inner walls and the vibrator component end, supports the oscillator group The first elastic supporting member for supporting optical member and the second elastic supporting member for supporting optical member of part linear reciprocal movement along the first direction.

9. a kind of linear vibration motor according to claim 6, which is characterized in that

The housing includes complementing each other to form the first shell, second shell and third housing of accommodating cavity；

Wherein described first shell and third housing are platy structure, and the second shell is to be sealed by the four sides being bent to form Closing top and bottom has the cavity body structure of opening；

The first shell is separately fixed at third housing at the top open part and bottom opening of second shell.

10. a kind of linear vibration motor according to claim 9, which is characterized in that the flexible PCB ontology is from shell Outside body first shell inner surface is extended to along the third case inside surface and second shell inner surface.