CN106953492A - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- CN106953492A CN106953492A CN201710176641.6A CN201710176641A CN106953492A CN 106953492 A CN106953492 A CN 106953492A CN 201710176641 A CN201710176641 A CN 201710176641A CN 106953492 A CN106953492 A CN 106953492A
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- CN
- China
- Prior art keywords
- magnetic field
- permanent magnet
- reinforcement part
- coil
- oscillator
- 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
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- 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
-
- 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
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
Abstract
The invention discloses a kind of linear vibration motor.The vibrating motor includes housing, oscillator, coil and flexible member, housing has cavity, oscillator, coil and flexible member are arranged in cavity, oscillator is suspended in cavity by flexible member, oscillator includes the first permanent magnet linked together, magnetic field reinforcement part and counterweight part, the long side of first permanent magnet, magnetic field reinforcement part it is long while and coil it is long while it is parallel with long axis direction respectively, and the short side of three is parallel with short-axis direction respectively, first permanent magnet is multiple and magnetizing direction parallel to direction of vibration, the adjacent side of the first adjacent permanent magnet has identical polarity, first permanent magnet and magnetic field reinforcement part interval setting, the long side of coil is relative with magnetic field reinforcement part, so that oscillator vibrates along short-axis direction.
Description
Technical field
The present invention relates to vibrating device technical field, more particularly, to a kind of linear oscillator vibrated along short-axis direction
Motor.
Background technology
With the development of the communication technology, portable type electronic product, such as mobile phone, handheld device or the joy of palm multimedia
Happy equipment etc. enters the life of people.In these portable type electronic products, system is typically done using vibrating motor anti-
Feedback.For example, vibrational feedback of the incoming call prompting of mobile phone, game machine etc..
In existing vibrating motor, the direction of vibration of vibrating motor is generally along horizontal long axis direction.Long axis direction is
The bearing of trend on the long side of vibrating motor.This vibrating motor generally comprises the vibrator component being contained in housing and metal elastic
Piece.Metal clips is used to the magnetic oscillator being suspended in the housing.Metal clips will not only be provided back for vibrator component
Multiple power, also providing makes vibrator component be suspended in the support force in space.
Use more and vertically magnetize the magnetic circuit of long axis direction vibrating motor, and magnetizing direction vertical coil, so as to form length
Direction of principal axis driving force.But due to being limited to short-axis direction size, the length of coil and magnet can not be done greatly.Short-axis direction is vibration
The bearing of trend of the short side of motor.According to Lorentz force formula F=BIL, wherein, B：Magnetic induction；I：Size of current；L：Wire
Length.Because conductor length L size is limited by short axle, it is impossible to be made big, so that driving force is restricted.
In addition, the power of magnetic induction limits the size of the driving force of vibrating motor.Because magnetic induction is small, therefore response
Time lengthening, vibrating effect is poor.
The content of the invention
It is an object of the present invention to provide a kind of linear vibration motor new solution.
There is provided a kind of linear vibration motor according to the first aspect of the invention.The vibrating motor include housing, oscillator,
Coil and flexible member, the housing have cavity, and the oscillator, the coil and the flexible member are arranged on described
In cavity, the oscillator is suspended in the cavity by the flexible member, and the oscillator includes first linked together
Permanent magnet, magnetic field reinforcement part and counterweight part, first permanent magnet it is long while, the magnetic field reinforcement part it is long while and the coil
Long side it is parallel with long axis direction respectively, and the short side of three is parallel with short-axis direction respectively, and first permanent magnet is many
Individual and magnetizing direction has identical polarity parallel to direction of vibration, the adjacent side of adjacent first permanent magnet,
First permanent magnet and magnetic field reinforcement part interval setting, the long side of the coil are relative with the magnetic field reinforcement part, with
The oscillator is set to be vibrated along short-axis direction.
Alternatively, the magnetic field reinforcement part is the second permanent magnet, the magnetizing direction and direction of vibration of second permanent magnet
Vertically.
Alternatively, the magnetic field reinforcement part is made by magnetic conductive material.
Alternatively, the counterweight part is made by magnetic conductive material, and the magnetic field reinforcement part and the counterweight part are one
Body formed.
Alternatively, the coil is 2, and first permanent magnet is 2, and the magnetic field reinforcement part is 1, described in 2
The adjacent long side of coil is relative with the magnetic field reinforcement part, and the 2 long sides relative with the magnetic field reinforcement part
With the identical sense of current.
Alternatively, center line pair of 2 relative with the magnetic field reinforcement part long sides relative to the magnetic field reinforcement part
Claim to set.
Alternatively, also including pole piece, the coil is set around the pole piece, a pair of the pole piece and the coil 1
Should, the pole piece and the housing are made by magnetic conductive material, and each pole piece is connected with the housing, each described
Pole piece magnetizes the side wall adjacent with the pole piece of the housing, and magnetic force is formed between the side wall and first permanent magnet.
Alternatively, the pole piece and the housing are integrally formed.
Alternatively, caved inward by the housing and form the pole piece.
Alternatively, the flexible member be shell fragment, the shell fragment include be used for be connected with housing first connecting portion, be used for
The second connecting portion being connected with oscillator and the elastic arm in the middle of first connecting portion and second connecting portion, the elastic arm are straight piece
Shape.
It was found by the inventors of the present invention that in the prior art, being limited to the size of short-axis direction, conductor length can not be done
Greatly, cause the driving force of oscillator small.Therefore, the technical assignment or technical problem to be solved that the present invention to be realized are these
It is that art personnel never expect or it is not expected that, therefore the present invention is a kind of new technical scheme.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is the exploded view of linear vibration motor according to an embodiment of the invention.
Fig. 2 is the installation diagram of stator according to an embodiment of the invention and lower casing.
Fig. 3 is the structural representation of lower casing according to an embodiment of the invention.
Fig. 4 is the structural representation of shell fragment according to an embodiment of the invention.
Fig. 5 is the sectional view of linear vibration motor according to an embodiment of the invention.
Fig. 6 is the sectional view of linear vibration motor in accordance with another embodiment of the present invention.
The upward view of Fig. 7 linear vibration motors according to an embodiment of the invention for being not provided with lower casing.
Fig. 8 is the structural representation of magnet assembly according to an embodiment of the invention.
Description of reference numerals：
10：Lower casing；11：Upper casing；12：Shell fragment；13：Mass；14：First permanent magnet；15：Second permanent magnet；16：FPC；
17：Coil；18：The first side wall；19：Second sidewall；20：Pole piece；21：Lug boss；22：First is raised；23：First connecting portion；
24：Elastic arm；25：Second connecting portion；26：Second is raised；27：The long side of coil；28：The short side of coil；29：First permanent magnet
Long side；30：The short side of first permanent magnet；31：The long side of second permanent magnet；32：The short side of second permanent magnet；33：Magnetic inductive block.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments does not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
There is provided a kind of linear vibration motor for embodiments in accordance with the present invention.The vibrating motor can be used in mobile phone, game
The electronic equipments such as machine, notebook computer, wearable device, intercom.
As shown in figures 1-8, the vibrating motor includes housing, oscillator, coil 17 and flexible member.Housing has cavity.
Oscillator, coil 17 and flexible member are arranged in cavity.For example, flexible member can be, but not limited to, shell fragment 12, elasticity
Rubber parts, spring etc..
Oscillator is suspended in cavity by flexible member.Oscillator includes the first permanent magnet 14, the magnetic field benefit linked together
Strong portion and counterweight part.First permanent magnet 14 is used to form magnetic field.For example, the first permanent magnet 14 is ferrite lattice or neodymium iron boron
Magnet.Magnetic field reinforcement part is used to strengthen the magnetic induction of oscillator.Counterweight part is used for the inertia for increasing oscillator, to lift vibration sense.The
One permanent magnet it is long while 29, magnetic field reinforcement part it is long while and coil long side 27 it is parallel with long axis direction respectively, and first forever
The short side 28 of the short side 30 of magnet, the short side of magnetic field reinforcement part and coil is parallel with short-axis direction respectively.
The shape of first permanent magnet 14 and magnetic field reinforcement part can be designed according to actual needs, as long as with relative
Long side and short side, it is easy to processing.For example, cuboid, cylinder, prism etc..
First permanent magnet 14 is multiple and magnetizing direction parallel to short-axis direction.The magnetizing direction of first permanent magnet 14 with
Coil 17 is parallel.The adjacent side of multiple first permanent magnets 14 has identical polarity.As illustrated in fig. 1 and 2, long axis direction is
The bearing of trend on the long side of linear vibration motor, short-axis direction is the bearing of trend of the short side of linear vibration motor.For example, two
Bearing of trend is mutually perpendicular to.Identical charges repel each other make it that the first adjacent permanent magnet 14 is formed to the line structure that magnetizes, adjacent first permanent magnetism
The magnetic direction in the gap of body 14 is perpendicular to coil 17.First permanent magnet 14 and magnetic field reinforcement part interval setting.Magnetic field reinforcement part
The magnetic induction in the magnetic field between the first adjacent permanent magnet 14 can be strengthened.The long side 27 of coil is relative with magnetic field reinforcement part,
So that oscillator vibrates along short-axis direction.
The linear vibration motor, the first permanent magnet it is long while 29, magnetic field reinforcement part it is long while and the long side 27 of coil distinguish
It is parallel with long axis direction, and the short side of three is parallel with short-axis direction respectively, and oscillator vibrates along short-axis direction.First permanent magnet
14th, the length of magnetic field reinforcement part and coil 17 is not limited by housing, and user can set the length of three according to actual needs,
So as to increase the driving force of linear vibration motor, shorten the response time, lift the vibration sense of linear vibration motor.
In addition, magnetic field reinforcement part can effectively strengthen the magnetic induction in the magnetic field being adjacent between the first permanent magnet 14,
Further increase the driving force of linear vibration motor, shorten the response time, lift the vibration sense of linear vibration motor.
In addition, in the linear vibration motor, the first permanent magnet 14 is multiple and the first permanent magnet 14 magnetizing directions
Parallel to short-axis direction, magnetic field intensity can be effectively improved, driving force is further increased.
Further, since length is unrestricted, therefore counterweight part need not carry out avoidance design, reduce difficulty of processing, and match somebody with somebody
Weight portion is readily available big quality, lifts the vibration sense of linear vibration motor.
Fig. 1 is the exploded view of linear vibration motor according to an embodiment of the invention.Fig. 5 is according to a reality of the invention
Apply the sectional view of the linear vibration motor of example.
As shown in figure 1, housing includes upper casing 11 and lower casing 10.Upper casing 11 and lower casing 10 are snapped together, with them
Portion forms cavity.For convenience of explanation, housing is set to cuboid.Certainly, in other examples, the section of housing can be near
Like the shape of cuboid, such as ellipse, track type, as long as with relative long axis direction and short-axis direction.Housing
Material can be, but not limited to, metal, plastics, ceramics etc..
In this example embodiment, coil 17 is 2, and the first permanent magnet 14 is 2, and magnetic field reinforcement part is 1,2 coils 17
Adjacent long side is relative with magnetic field reinforcement part, and the 2 long sides relative with magnetic field reinforcement part have the identical sense of current.
As shown in Fig. 2 coil 17 is arranged on lower casing 10.Coil 17 is connected by FPC16 with external circuit, with transmitting telecommunication number.
Preferably, the 2 long sides relative with magnetic field reinforcement part are symmetrical arranged relative to the center line of magnetic field reinforcement part.So, two lines
The driving force of circle 17 can be acted on more balancedly on oscillator.
In one example, housing has the first projection 22, and coil 17 is arranged in the first projection 22.For example, such as Fig. 2
Shown, lower casing 10 is projecting inward to cavity, to form the first projection 22.Coil 17 is set by way of bonding or laser welding
Put in the first projection 22.In this way, the gap between the first permanent magnet 14 and coil 17 is smaller, can make more
Magnetic induction line passes through coil 17, so as to improve the size of Lorentz force.
In one example, as shown in figure 4, flexible member is shell fragment 12.Shell fragment 12 includes be used to be connected with housing the
One connecting portion 23, for the second connecting portion 25 that is connected with oscillator and in the middle of first connecting portion 23 and second connecting portion 25
Elastic arm 24, elastic arm 24 be straight sheet.For example, as shown in figure 1, being provided with the second lug boss 26 on upper casing 11, first connects
Portion 23 is soldered on the second lug boss 26.Second connecting portion 25 is directly connected with counterweight part.The elastic arm 24 of straight sheet, is reduced
The manufacture difficulty of shell fragment 12, and the structural strength of shell fragment 12 is high.Elastic arm 24 has with first connecting portion 23 and second connecting portion 25
There is the sharping degree of setting.Shell fragment 12 need not carry out big bending process, reduce the damage in process, improve and use
Life-span.
Further, since the linear vibration motor vibrates along short-axis direction, the size of the extension direction of principal axis of shell fragment 12 is unrestricted,
There can be bigger length.So, the stress and resonant frequency of shell fragment 12 are relatively low.
Those skilled in the art can set the thickness of shell fragment 12 according to actual conditions.
In one example, magnetic field reinforcement part is the second permanent magnet 15.The magnetizing direction of second permanent magnet 15 and vibration side
To vertical.For example, as shown in Fig. 1,5 and 8, two the first permanent magnets 14 be arranged in parallel, the second permanent magnet 15 is located at two first
Between permanent magnet 14, three links together composition magnet assembly.Magnet assembly links together with counterweight part.First permanent magnet
It is long while 29 with the second permanent magnet it is long while it is 31 parallel, the short side 30 of the first permanent magnet is parallel with the short side 32 of the second permanent magnet.
For example, the appearance and size of three is identical, in order to install.For example, the magnetizing direction of the second permanent magnet 15 is vertically, first
The magnetizing direction of permanent magnet 14 is in the horizontal direction.The magnetic field of the adjacent side of two the first permanent magnets 14 is formed to the road knot that magnetizes
Structure so that magnetic induction line therebetween is vertically.For example, as shown in figure 5, the N poles of the first permanent magnet 14 down so that two
The magnetic induction of individual adjacent N poles is stronger.
Those skilled in the art can set the magnetizing direction of the second permanent magnet 15 according to actual needs, as long as can strengthen
The magnetic induction in the adjacent side magnetic field of two the first permanent magnets 14.
In another example, magnetic field reinforcement part is made by magnetic conductive material.Magnetic conductive material can quilt in magnetic field
Magnetization, can play a part of gathering magnetic induction line, so as to strengthen magnetic induction.For example, as shown in fig. 6, magnetic field reinforcement part is to lead
Magnetic patch 33, the material of magnetic inductive block 33 is SUS-430.Long 29 parallel, the magnetic inductive blocks in long with the first permanent magnet of magnetic inductive block 33
33 short side is parallel with the short side 30 of the first permanent magnet.The magnetic induction line of adjacent side is gathered by magnetic inductive block 33.In this way,
Effectively enhance magnetic induction.
In one example, counterweight part is made by magnetic conductive material, and magnetic field reinforcement part is to be integrally formed with counterweight part
's.For example, counterweight part is mass 13, the material of mass 13 is SUS-430.Magnetic inductive block 33 is integrally formed with mass 13.
For example, pour or punching press by way of be integrally formed mass 13 and magnetic inductive block 33.Two the first permanent magnets 14 are distinguished
It is arranged on the both sides of magnetic inductive block 33.In this way, processing technology, and the company of mass 13 and magnetic inductive block 33 are simplified
Connect intensity higher.
In one example, linear vibration motor also includes pole piece 20.Coil 17 is set around pole piece 20, pole piece 20 and line
Circle 17 is corresponded.Pole piece 20 and housing are made by magnetic conductive material.Each pole piece 20 is connected with housing.Each pole piece 20
By the side wall magnetization adjacent with the pole piece 20 of housing.Magnetic force is formed between side wall and the first permanent magnet 14.The magnetically-actuated is shaken
Son vibration.
For example, as shown in Fig. 5 or 6, the pole piece 20 that the coil 17 in left side is surrounded magnetizes, the wherein pole piece 20 is leaned on
The side of nearly lower casing 10 is N poles.Because the magnetic conduction of upper casing 11 and lower casing 10 is acted on, the polarity of the first side wall 18 is N poles.Right side
The pole piece 20 that coil 17 is surrounded magnetizes, and wherein the side of the close lower casing 10 of the pole piece 20 is S poles.Because upper casing 11 is with
The magnetic conduction effect of shell 10, the polarity of second sidewall 19 is S poles.Now, coil 17 to the Lorentz force F of oscillator direction to the left.
The first side wall 18 is attraction for the magnetic force of oscillator, and the attraction is to the left.Second sidewall 19 is repulsion for the magnetic force of oscillator
Power, the repulsive force is to the left.The direction of three power is identical, the driving force for constituting oscillator vibration of making a concerted effort.
When oscillator vibrates arrival maximum displacement to the left, the sense of current of coil 17 changes, now, and 17 pairs of coil shakes
The direction of the Lorentz force of son is to the right.The first side wall 18 for oscillator repulsive force to the right.Suction of the second sidewall 19 for oscillator
Gravitation is to the right.The common drive vibrator vibration of three power." electromagnetic force F ' " is formed between the side wall and oscillator of housing, i.e., in coil 17
After energization, the magnetic force that side wall is produced with oscillator, being somebody's turn to do " electromagnetic force F ' " greatly increases the driving force of oscillator.
For example, pole piece 20 is strip, movement is welded on lower casing 10 by laser welding, as shown in Figure 6.
Preferably, pole piece 20 is integrally formed with housing.For example, using pouring, the mode such as punching press is by pole piece 20 and housing
It is integrally machined shaping.
For example, forming pole piece 20 as shown in figure 5, being caved inward by housing.When making, drain pan uses sheet material, passes through punching
The mode of pressure forms lug boss 21, and lug boss 21 is set as pole piece 20, coil 17 around pole piece 20.In this way, it is simple
Procedure of processing is changed.In addition, the magnetic conduction between pole piece 20 and housing works well.Further increase the driving of oscillator vibration
Power.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel are it should be understood that example above is merely to illustrate, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
1. a kind of linear vibration motor, it is characterised in that including housing, oscillator, coil (17) and flexible member, the housing
With cavity, the oscillator, the coil (17) and the flexible member are arranged in the cavity, and the oscillator passes through institute
State flexible member to be suspended in the cavity, the oscillator includes the first permanent magnet (14), the magnetic field reinforcement part linked together
And counterweight part, first permanent magnet it is long while (29), the magnetic field reinforcement part it is long while and the coil long side (27) point
It is not parallel with long axis direction, and the short side of three is parallel with short-axis direction respectively, first permanent magnet (14) for it is multiple simultaneously
And magnetizing direction, parallel to direction of vibration, the adjacent side of adjacent first permanent magnet (14) has identical polarity,
First permanent magnet (14) and magnetic field reinforcement part interval setting, long side (27) and the magnetic field reinforcement part of the coil
Relatively, so that the oscillator vibrates along short-axis direction.
2. linear vibration motor according to claim 1, it is characterised in that the magnetic field reinforcement part is the second permanent magnet
(15), the magnetizing direction of second permanent magnet (15) is vertical with direction of vibration.
3. linear vibration motor according to claim 1, it is characterised in that the magnetic field reinforcement part is by magnetic conductive material system
Form.
4. linear vibration motor according to claim 3, it is characterised in that the counterweight part is by magnetic conductive material making
Into the magnetic field reinforcement part and the counterweight part are integrally formed.
5. linear vibration motor according to claim 1, it is characterised in that the coil is 2, first permanent magnet
(14) be 2, the magnetic field reinforcement part is 1, the adjacent long sides of 2 coils (17) with magnetic field reinforcement part phase
2 right and relative with the magnetic field reinforcement part long sides have the identical sense of current.
6. linear vibration motor according to claim 5, it is characterised in that 2 institutes relative with the magnetic field reinforcement part
The center line that long side is stated relative to the magnetic field reinforcement part is symmetrical arranged.
7. the linear vibration motor according to claim 1 or 5, it is characterised in that also including pole piece (20), the coil
(17) set around the pole piece (20), the pole piece (20) corresponds with the coil (17), the pole piece (20) and institute
State housing to be made by magnetic conductive material, each pole piece (20) is connected with the housing, each pole piece (20) will
The side wall magnetization adjacent with the pole piece (20) of the housing, magnetic is formed between the side wall and first permanent magnet (14)
Power.
8. linear vibration motor according to claim 7, it is characterised in that the pole piece (20) is one with the housing
Shaping.
9. linear vibration motor according to claim 7, it is characterised in that caved inward by the housing and form the pole
Core (20).
10. linear vibration motor according to claim 1, it is characterised in that the flexible member is shell fragment (12), described
First connecting portion (23) that shell fragment (12) includes being used for being connected with housing, for the second connecting portion (25) that is connected with oscillator and
Elastic arm (24) in the middle of first connecting portion (23) and second connecting portion (25), the elastic arm (24) is straight sheet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176641.6A CN106953492B (en) | 2017-03-23 | 2017-03-23 | Linear vibration motor |
| PCT/CN2017/089569 WO2018171060A1 (en) | 2017-03-23 | 2017-06-22 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176641.6A CN106953492B (en) | 2017-03-23 | 2017-03-23 | Linear vibration motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106953492A true CN106953492A (en) | 2017-07-14 |
| CN106953492B CN106953492B (en) | 2020-02-18 |
Family
ID=59472334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710176641.6A Active CN106953492B (en) | 2017-03-23 | 2017-03-23 | Linear vibration motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106953492B (en) |
| WO (1) | WO2018171060A1 (en) |
Cited By (3)
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|---|---|---|---|---|
| CN108566065A (en) * | 2018-04-10 | 2018-09-21 | 维沃移动通信有限公司 | A kind of vibrating motor and mobile terminal |
| CN109309892A (en) * | 2018-10-16 | 2019-02-05 | 歌尔股份有限公司 | Electromagnetic driver and screen sounding device |
| CN112243188A (en) * | 2019-07-19 | 2021-01-19 | 歌尔股份有限公司 | Transducer magnetic circuit structure, transducer and electronic equipment thereof |
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| CN106100278B (en) * | 2016-07-21 | 2018-10-30 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
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| CN204597754U (en) * | 2015-05-07 | 2015-08-26 | 歌尔声学股份有限公司 | Flat linear motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108566065A (en) * | 2018-04-10 | 2018-09-21 | 维沃移动通信有限公司 | A kind of vibrating motor and mobile terminal |
| CN109309892A (en) * | 2018-10-16 | 2019-02-05 | 歌尔股份有限公司 | Electromagnetic driver and screen sounding device |
| CN109309892B (en) * | 2018-10-16 | 2022-07-19 | 歌尔股份有限公司 | Electromagnetic exciter and screen sounding device |
| CN112243188A (en) * | 2019-07-19 | 2021-01-19 | 歌尔股份有限公司 | Transducer magnetic circuit structure, transducer and electronic equipment thereof |
| CN112243188B (en) * | 2019-07-19 | 2023-04-14 | 歌尔股份有限公司 | Transducer magnetic circuit structure, transducer and electronic equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106953492B (en) | 2020-02-18 |
| WO2018171060A1 (en) | 2018-09-27 |
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