CN106911242A - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- CN106911242A CN106911242A CN201710293567.6A CN201710293567A CN106911242A CN 106911242 A CN106911242 A CN 106911242A CN 201710293567 A CN201710293567 A CN 201710293567A CN 106911242 A CN106911242 A CN 106911242A
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- CN
- China
- Prior art keywords
- permanent magnet
- mass
- vibration motor
- linear vibration
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The present invention provides a kind of linear vibration motor, including housing, the vibrational system being housed in housing；Wherein, vibrational system includes mass and the permanent magnet being fixed in mass；The barycenter of permanent magnet does not coincide with the barycenter of vibrational system.Permanent magnet can be reduced using foregoing invention to take up room mass, increase the quality of vibrational system, improve the vibration sense of product.
Description
Technical field
The present invention relates to portable type electronic product technical field, more specifically, it is related to a kind of asymmetric setting of permanent magnet
Linear vibration motor.
Background technology
With the development of the communication technology, portable type electronic product, such as mobile phone, handheld device or palm multimedia recreation
Equipment etc. enters the life of people.In these portable type electronic products, typically system feedback can be done with vibrating motor,
The incoming call prompting of such as mobile phone, vibrational feedback of game machine etc..However, with the lightening development trend of electronic product, in it
The various components in portion also need to adapt to this trend, and vibrating motor is no exception.
Existing vibrating motor, generally comprises Shang Gai and with upper cap-shaped into the lower cover of oscillation space, in oscillation space
The oscillator (including mass and permanent magnet) of linear vibration is inside done, is covered in connection and oscillator is done elasticity branch of reciprocating vibration
Support member and the coil positioned at oscillator distance below.
At present, the position of permanent magnet is equal in the major axis or short axle relative to mass in the plane of direction of vibration
It is symmetrical, this requires magnet or coil is necessary for even number, and the space for taking mass is more, causes oscillator quality
Reduce, the resonant frequency of motor is raised, and vibration sense is not strong enough.
The content of the invention
In view of the above problems, it is an object of the invention to provide a kind of linear vibration motor, to solve linear vibration motor
The structure that permanent magnet is symmetric, takes up room more, causes the resonant frequency of motor high, the low problem of vibration sense.
According to the linear vibration motor that the present invention is provided, including housing, the vibrational system being housed in housing；Wherein, shake
Dynamic system includes mass and the permanent magnet being fixed in mass；The barycenter of permanent magnet is not mutually overlap with the barycenter of vibrational system
Close.
Furthermore it is preferred that structure be that permanent magnet is embedded the side of the major axis or short-axis direction in mass.
Furthermore it is preferred that structure be, also including stator system；Stator system includes and determining that permanent magnet position is correspondingly arranged
Subcoil；The magnetizing direction of permanent magnet is vertically to magnetize；The axis direction of stator coil is perpendicular with the magnetizing direction of permanent magnet.
Furthermore it is preferred that structure be that stator system also includes being fixed on flexible PCB on housing；Stator coil with it is soft
Property circuit board conducting.
Furthermore it is preferred that structure be, housing include adaptation connection upper casing and lower casing, be provided with what is extended on lower casing
Supporting plate, flexible PCB is fastened or is pasted and fixed on supporting plate.
Furthermore it is preferred that structure be, permanent magnet in mass be in asymmetric distribution.
Furthermore it is preferred that structure be, permanent magnet mass X-direction and/or Y direction and/or Z-direction in non-
It is symmetrical.
Furthermore it is preferred that structure be in mass and permanent magnet on the upper and lower end face of housing, to be respectively arranged with resistance
Damping member.
Furthermore it is preferred that structure be that elastic supporting member for supporting optical member is welded between mass and housing, elastic supporting member for supporting optical member use
It is hung in housing in by mass support.
Furthermore it is preferred that structure be that being sticked respectively in the side or both sides of permanent magnet has corresponding washer plate.
Using above-mentioned linear vibration motor, permanent magnet be distributed in perpendicular to the plane of mass direction of vibration major axis or
The side of short-axis direction, is fixed on mass or housing, and stator coil is correspondingly arranged with permanent magnet, and permanent magnet is set
It is unsymmetric structure, its occupancy to mass space can be reduced, increase the quality of vibrational system, reduces linear vibration motor
Resonant frequency, improve product vibration sense.
In order to realize above-mentioned and related purpose, one or more aspects of the invention include the spy that will be explained in below
Levy.Following explanation and accompanying drawing is described in detail some illustrative aspects of the invention.However, these aspects are indicated only
It is some modes in the various modes for can be used principle of the invention.Additionally, it is contemplated that including all these aspects with
And their equivalent.
Brief description of the drawings
By reference to the explanation below in conjunction with accompanying drawing, and be more fully understood from to of the invention, it is of the invention other
Purpose and result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is the exploded view of the linear vibration motor according to the embodiment of the present invention one；
Fig. 2 is the profile of the linear vibration motor according to the embodiment of the present invention one；
Fig. 2-1 is the permanent magnet distributed architecture schematic diagram one according to the embodiment of the present invention one：
Fig. 2-2 is the permanent magnet distributed architecture schematic diagram two according to the embodiment of the present invention one；
Fig. 2-3 is the permanent magnet distributed architecture schematic diagram three according to the embodiment of the present invention one；
Fig. 2-4 is the permanent magnet distributed architecture schematic diagram four according to the embodiment of the present invention one；
Fig. 3 is the schematic diagram of the linear vibration motor according to the embodiment of the present invention one；
Fig. 4-1 is the profile of the linear vibration motor according to the embodiment of the present invention two；
Fig. 4-2 is the schematic diagram of the linear vibration motor according to the embodiment of the present invention two；
Fig. 5-1 is the profile one according to the linear vibration motor of the embodiment of the present invention three；
Fig. 5-2 be according to the profile two of the linear vibration motor of the embodiment of the present invention three '
Fig. 5-3 is the schematic diagram of the linear vibration motor according to the embodiment of the present invention three.
Reference therein includes：Upper casing 1, damping piece 2,2 ', permanent magnet 3,3 ', 3 ", stator coil 4,4 ', 4 ", it is soft
Property circuit board 5, lower casing 6,6 ', elastic supporting member for supporting optical member 7,7 ', 7 ", mass 8,8 ', 8 ".
Identical label indicates similar or corresponding feature or function in all of the figs.
Specific embodiment
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain
Many details are stated.It may be evident, however, that these embodiments can also be realized in the case of without these details.
In other examples, for the ease of describing one or more embodiments, known structure and equipment show in block form an.
Used " mass " may also be referred to as " balancing weight " in the description of following specific embodiments, refer both to and product
The vibrating mass fixation of vibration is given birth to strengthen high-quality, the high desnity metal block of vibration balancing.In addition, invention is mainly used in miniature shaking
The improvement of dynamic motor, but also it is not excluded for for the technology in invention being applied to large-scale vibrating motor.But for the convenience of statement,
In the description of the embodiments below, " linear vibration motor " is identical with the implication that " vibrating motor " is represented.
The linear vibration motor of the embodiment of the present invention, including housing, the vibrational system being housed in housing；Vibrational system bag
Include mass and the permanent magnet being fixed in mass；The barycenter of permanent magnet does not coincide with the barycenter of vibrational system.Wherein, forever
The barycenter of magnet refers to the common barycenter of the permanent magnet used being fixed in mass, and the barycenter is common with mass and permanent magnet
Barycenter do not coincide.
Additionally, linear vibration motor also includes the stator system being housed in housing, stator system includes and permanent magnet position
Put the stator coil being correspondingly arranged.In other words, the linear vibration motor of the embodiment of the present invention, including housing, it is housed in regard to housing
Interior vibrational system and stator system；Wherein, vibrational system includes mass and permanent magnet, and stator system includes and permanent magnet position
The stator coil being correspondingly arranged is put, permanent magnet is in asymmetric distribution in mass；Stator coil/permanent magnet is fixed on housing
On, corresponding permanent magnet/stator coil is fixed in mass, i.e., one of stator coil or permanent magnet are fixed on housing
On, another part is then fixed on mass, is moved reciprocatingly with mass.
Specifically, stator coil setting corresponding with the position of permanent magnet, when stator coil is fixed on housing, permanent magnet
It is fixed on when in mass, permanent magnet is embedded the side of the major axis or short-axis direction in mass, the position of permanent magnet is being hung down
It is straight in being in asymmetric distribution in the plane of linear vibration motor direction of vibration；Or, when stator coil is fixed on mass, and
Permanent magnet is fixed on when in housing, and stator coil can be fixed on the major axis of mass or the side of short-axis direction.Wherein, matter
The long axis direction of gauge block is the mass maximum axial direction of size, generally matter in X-axis or Y direction in same level
The X-direction of gauge block, or length direction；Corresponding, the short-axis direction of mass is in same level, mass is along X-axis
Or smallest size of axial direction in Y direction, the generally Y direction of mass, or width, specifically refer to accompanying drawing
The structure of shown mass.
To describe the structure of the linear vibration motor of the embodiment of the present invention in detail, below with reference to accompanying drawing to tool of the invention
Body embodiment is described in detail.
Fig. 1 and Fig. 2 respectively illustrate the decomposition texture and profile of according to embodiments of the present invention one linear vibration motor
Structure.
As Fig. 1 and Fig. 2 jointly shown in, in this embodiment, linear vibration motor include housing, be housed in shaking in housing
Dynamic system and stator system, vibrational system include mass 8 and are embedded the permanent magnet 3 in long axis direction one end of mass 8, fixed
Subsystem includes the stator coil 4 being vertically fixed on case inside wall and the flexible PCB being secured transverse on housing
(FPCB, Flexible Printed Circuit Board) 5, stator coil 4 welds conducting with flexible PCB 5, by soft
Property circuit board 5 realizes the connection of linear vibration motor peripheral circuits.
Wherein, it is provided with the accepting groove being adapted with permanent magnet 3 in the side of the long axis direction of mass 8, permanent magnet 3 can be with
Paste or be weldingly fixed in the accepting groove of mass 8, the magnetizing direction of permanent magnet 3 is vertically to magnetize, and stator coil 4 is then solid
It is scheduled on the housing of the correspondence permanent magnet 3 of mass 8 one end, axis direction and the magnetizing direction of permanent magnet 3 of stator coil 4 mutually hang down
Directly.Wherein, the axis direction of stator coil 4 refers to the axis direction of the column that stator coil 4 is formed, and it is perpendicular to matter
The direction of vibration of gauge block 8.
In the specific embodiment of the present invention, mass 8 up and down two welded respectively between end face and housing
Connect and be fixed with elastic supporting member for supporting optical member 7, elastic supporting member for supporting optical member 7 is used to be hung on the support of mass 8 in housing, and is the fortune of mass 8
It is dynamic that elastic restoring force is provided.
In another embodiment of the present invention, can be respectively sticked in the side of permanent magnet or both sides has correspondence
Washer plate (not shown), the set location of washer plate can deform according to set location of the permanent magnet in mass,
Washer plate is sticked and be located at side, both sides or many sides of mass contact etc. in permanent magnet, permanent magnet is strengthened by washer plate
The magnetic field of generation, gathers the quantity through the magnetic line of force of stator coil, strengthens the vibration sense of linear vibration motor, improves user's body
Test.
It should be noted that the position of the permanent magnet in the embodiment of the present invention is perpendicular to linear vibration motor direction of vibration
Plane in be in asymmetric distribution, it will be appreciated that for permanent magnet can be in the X-direction of mass, Y direction or Z-direction
Asymmetric distribution, i.e. permanent magnet are in asymmetric distribution in the X-direction and/or Y direction and/or Z-direction of mass；When
So, permanent magnet can also be symmetric in plane vertically with linear vibration motor direction of vibration.Below with reference to accompanying drawing pair
Permanent magnet carries out citing signal in asymmetric or symmetrical linear vibration motor structure.
In the horizontal section structure of the linear vibration motor shown in Fig. 2-1, permanent magnet 3 is in relative to the X-axis of mass 8
Symmetrical, the Y-axis relative to mass 8 is in asymmetric distribution, and stator coil 4 is correspondingly arranged according to permanent magnet；Shown in Fig. 2-2
Horizontal linear vibrating motor cross-section structure in, X-axis and Y direction of the permanent magnet 3 on mass 8 be in asymmetric point
Cloth；In the longitudinal profile structure of the linear vibration motor shown in Fig. 2-3, Z-direction of the permanent magnet 3 on mass 8 is in non-right
Claim distribution, Fig. 2-4 shows the horizontal section structure of Fig. 2-3 linear vibration motors.
Understand, the permanent magnetism iron construction of the embodiment of the present invention, can also make each on the basis of present invention is not departed from
Plant and improve, will not enumerate herein.
Specifically, Fig. 3 shows the principle of according to embodiments of the present invention one linear vibration motor.
It is jointly shown with reference to Fig. 1 to Fig. 3, the asymmetric side for being arranged on mass 8 of permanent magnet 3, stator coil 4 and permanent magnetism
Iron 3 be arranged in parallel, after two kinds of electric currents in opposite direction are passed through in stator coil 4, according to judgement electrical conductor in magnetic field
The left hand rule of Impact direction, stretchs out left hand, makes thumb and remaining four finger vertical, and all with palm on the same plane
It is interior；Allow magnetic induction line to enter from the centre of the palm, and four fingers is pointed to sense of current, at this moment the signified direction of thumb is exactly that electrified wire exists
The direction of suffered Ampere force in magnetic field.
As shown in figure 3, being denoted as " ⊙ " sense of current for vertical view is faced out, it is denoted asThe sense of current is vertical
Drawing is inwards, it is assumed that on the energization direction of stator coil 4 isUnder " ⊙ ", according to left hand rule stator coil 4 in magnetic field
Impact direction be downward F ', can not be moved because stator coil 4 is fixed on housing, based on active force and reaction force
Relation, then the Impact direction of permanent magnet 3 is that upward F, F and F ' size equidirectionals are opposite.In this way, by pushing up power forever
Magnet 3 just drives mass 8 to do upward translational motion together, so as to extrude the elastic supporting member for supporting optical member of the upside of mass 8, stretches matter
The elastic supporting member for supporting optical member of the downside of gauge block 8.
Similarly, when the sense of current in stator coil 4 changes, according to left hand rule, the magnetic field force that stator coil 4 is subject to
The direction of F ' is upward.But because stator coil 4 is maintained static, then permanent magnet 3 is subject in opposite direction with F ' and size is identical
F active force, by push down on power permanent magnet 3 just drive mass 8 do downward translational motion together, while making matter
The elastic supporting member for supporting optical member 7 of the both sides of gauge block 8 continues to be stretched/extrude from after the reinstatement of extruding/extended state.Above-mentioned motion is alternately entered
OK, vibrational system is made to be moved reciprocatingly in the direction of the mounting plane parallel to stator system.
For in preventing linear vibration motor motion process, mass 8 or permanent magnet 3 collide with inner walls,
In another embodiment of the present invention, in mass 8 and permanent magnet 3 on the upper and lower end face of housing side, respectively
Paste fixed damping piece 2；Wherein, damping piece 2 can be using structures with elastic restoring force such as foam part, rubber parts or silica gel parts
Part；And it is possible to according to the change of the direction of motion of mass 8, adjust the set location of damping piece 2.
It should be noted that the vibration balancing of the vibration sense and mass 8 to strengthen linear vibration motor, mass 8 can be with
It is made of the density-metal material high such as tungsten steel block or nickel steel block or nickel tungsten, increases mass vibration force, produces electronics
The vibration of product is stronger.
Additionally, in linear vibration motor provided by the present invention, housing may also include the upper casing 1 and lower casing of adaptation connection
6, upper casing 1 is unclosed rectangular structure, and lower casing 6 is fixed on the open end of upper casing 1, and oscillator system and stator system are housed
In the cavity that upper casing 1 and lower casing 6 are formed.Wherein, the supporting plate for extending, structure and the flexibility of supporting plate are provided with lower casing 6
Circuit board 5 is corresponding, and flexible PCB 5 can be fastened or is pasted and fixed on supporting plate, and the lead of coil is then extended to outside housing
Side simultaneously turns on flexible PCB 5.
In the linear vibration motor of the embodiment of the present invention, when stator coil is fixed on housing, permanent magnet is fixed on quality
When in block, permanent magnet is embedded the side of the major axis or short-axis direction in mass；And work as stator coil and be fixed on mass,
Permanent magnet is fixed on when in housing, and stator coil can be fixed on the major axis of mass or the side of short-axis direction, permanent magnet
It is correspondingly arranged with stator coil position.
As an example, Fig. 4-1 and Fig. 4-2 respectively illustrates the structure of according to embodiments of the present invention two linear vibration motor
And principle.
As shown in Fig. 4-1 and Fig. 4-2, the linear vibration motor of the embodiment of the present invention two, including it is housing, mass 8 ', embedding
It is located at the stator coil 4 ' of long axis direction one end of mass 8 ', is vertically fixed on permanent magnet 3 ' on case inside wall, stator line
Circle 4 ' and permanent magnet 3 ' be arranged in parallel；Additionally, also including the flexible PCB of connection linear vibration motor peripheral circuits, stator
The lead of coil 4 ' is extended on flexible PCB, and is turned on flexible circuit plate weld.
Wherein it is possible to set the avoiding structure being adapted to stator coil 4 ', stator in the side of the long axis direction of mass 8 '
Coil 4 ' can be set on mass 8 ', and permanent magnet 3 ' is then pasted or is weldingly fixed on the madial wall of housing, permanent magnet 3 '
Magnetizing direction vertically to magnetize, the axis direction of stator coil 4 ' is perpendicular with the magnetizing direction of permanent magnet 3 '.
As shown in the Fig. 4-2, the Impact direction according to left hand rule stator coil 4 ' in magnetic field is upward F, due to fixed
Subcoil 4 ' is fixed on mass 8 ', by the stator coil 4 ' for pushing up power mass 8 ' will be driven to do together upwards
Translational motion, so as to extrude the elastic supporting member for supporting optical member 7 ' on the upside of mass 8 ', the elastic supporting member for supporting optical member 7 ' on the downside of stretching mass 8 '.
When the sense of current in stator coil 4 ' changes, the Impact direction of stator coil 4 ' can also change, while making mass 8 ' two
The elastic supporting member for supporting optical member 7 ' of side continues to be stretched/extrude from after the reinstatement of extruding/extended state.Above-mentioned motion alternately, i.e.,
It is capable of achieving the of reciprocating vibration of linear vibration motor.
Fig. 5-1 and Fig. 5-2 shows cuing open for according to embodiments of the present invention three linear vibration motor from different perspectives respectively
Face structure；Fig. 5-3 shows the principle of according to embodiments of the present invention three linear vibration motor.
As shown in Fig. 5-1 to Fig. 5-3 is common, the linear vibration motor of the embodiment of the present invention three, including housing, it is housed in shell
Internal vibrational system and stator system, vibrational system include mass 8 " and be embedded in mass 8 " short-axis direction side
Permanent magnet 3 ", stator system includes the stator coil 4 being vertically fixed on case inside wall " and be secured transverse to soft on housing
Property circuit board (FPCB, Flexible Printed Circuit Board), stator coil 4 " with flexible circuit plate weld conducting,
The connection of linear vibration motor peripheral circuits is realized by flexible PCB.
Wherein, in mass 8 " side of short-axis direction is provided with and permanent magnet 3 " accepting groove that is adapted, permanent magnet 3 "
Can paste or be weldingly fixed on mass 8 " accepting groove in, permanent magnet 3 " magnetizing direction vertically to magnetize, stator line
Circle 4 " is then fixed on mass 8 " correspondence permanent magnet 3 " one end housing on, stator coil 4 " axis direction and permanent magnet 3 "
Magnetizing direction is perpendicular.In addition, support fixed mass block 8 " elastic supporting member for supporting optical member 7 " avoid permanent magnet 3 " where end face be arranged on
Between the upper and lower ends face of mass 8 " and the side wall of housing.
It should be noted that in the linear vibration motor shown in embodiment two and embodiment three, relevant linear oscillator horse
The other structures part for reaching, for example, elastic supporting member for supporting optical member, damping piece (including the damping piece 2 ' in accompanying drawing 4-1), shell structure (including
Lower casing 6 ' in accompanying drawing 4-1) etc. refer in embodiment one description, here is omitted.
Be can be seen that by above-mentioned implementation method, the linear vibration motor that the present invention is provided, permanent magnet uses asymmetric arrangement,
It is distributed in the major axis of linear vibration motor or the side of short axle；In addition, permanent magnet can be fixed on mass or on housing,
Corresponding stator coil is fixed on housing or mass, and stator coil and mass position are correspondingly arranged, asymmetric to set
The permanent magnet put can not only be reduced is occupied mass space, increases the quality of vibrational system, additionally it is possible to which reduction is linearly shaken
The resonant frequency of dynamic motor, heightens the vibration sense and Consumer's Experience of product.
Linear vibration motor of the invention is described in an illustrative manner above with reference to accompanying drawing.But, art technology
Personnel should be appreciated that the linear vibration motor proposed for the invention described above, can also not depart from the base of present invention
Various improvement are made on plinth.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (10)
1. a kind of linear vibration motor, including housing, the vibrational system being housed in the housing；Wherein, the vibrational system
Including mass and the permanent magnet being fixed in the mass；Characterized in that,
The barycenter of the permanent magnet does not coincide with the barycenter of the vibrational system.
2. linear vibration motor as claimed in claim 1, it is characterised in that
The permanent magnet is embedded the side of the major axis or short-axis direction in the mass.
3. linear vibration motor as claimed in claim 2, it is characterised in that also including stator system；
The stator system includes the stator coil being correspondingly arranged with the permanent magnet position；
The magnetizing direction of the permanent magnet is vertically to magnetize；
The axis direction of the stator coil is perpendicular with the magnetizing direction of the permanent magnet.
4. linear vibration motor as claimed in claim 3, it is characterised in that the stator system also includes being fixed on the shell
Flexible PCB on body；
The stator coil is turned on the flexible PCB.
5. linear vibration motor as claimed in claim 4, it is characterised in that
The housing includes the upper casing and lower casing of adaptation connection, and the supporting plate for extending, the flexibility are provided with the lower casing
Circuit board is fastened or is pasted and fixed on the supporting plate.
6. linear vibration motor as claimed in claim 1, it is characterised in that
The permanent magnet is in asymmetric distribution in the mass.
7. linear vibration motor as claimed in claim 6, it is characterised in that
The permanent magnet is in asymmetric distribution in the X-direction and/or Y direction and/or Z-direction of mass.
8. linear vibration motor as claimed in claim 1, it is characterised in that
In the mass and the permanent magnet on the upper and lower end face of the housing, damping piece is respectively arranged with.
9. linear vibration motor as claimed in claim 1, it is characterised in that
Elastic supporting member for supporting optical member is welded between the mass and the housing, the elastic supporting member for supporting optical member is used for the matter
Gauge block support is hung in the housing.
10. linear vibration motor as claimed in claim 1, it is characterised in that
Being sticked respectively in the side or both sides of the permanent magnet has corresponding washer plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293567.6A CN106911242B (en) | 2017-04-28 | 2017-04-28 | Linear vibration motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293567.6A CN106911242B (en) | 2017-04-28 | 2017-04-28 | Linear vibration motor |
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| CN106911242A true CN106911242A (en) | 2017-06-30 |
| CN106911242B CN106911242B (en) | 2023-09-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022134205A1 (en) * | 2020-12-22 | 2022-06-30 | 瑞声声学科技(深圳)有限公司 | Vibration motor |
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| CN205792138U (en) * | 2016-05-26 | 2016-12-07 | 歌尔股份有限公司 | Linear vibration motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134205A1 (en) * | 2020-12-22 | 2022-06-30 | 瑞声声学科技(深圳)有限公司 | Vibration motor |
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| CN106911242B (en) | 2023-09-12 |
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