CN209255155U - Electromagnetic driver - Google Patents
Electromagnetic driver Download PDFInfo
- Publication number
- CN209255155U CN209255155U CN201821743733.4U CN201821743733U CN209255155U CN 209255155 U CN209255155 U CN 209255155U CN 201821743733 U CN201821743733 U CN 201821743733U CN 209255155 U CN209255155 U CN 209255155U
- Authority
- CN
- China
- Prior art keywords
- magnet
- shell
- permanent magnet
- coil
- electromagnetic driver
- 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.)
- Active
Links
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model discloses a kind of electromagnetic drivers.The electromagnetic driver includes shell, magnetic conduction oscillator, coil and permanent magnet, the shell has accommodating chamber, the magnetic conduction oscillator, the coil and the permanent magnet are arranged in the accommodating chamber, the magnetic conduction oscillator includes fixed part and suspending part interconnected, the fixed part forms relatively fixed with the shell, the suspending part is suspended in the accommodating chamber, the at least part of the suspending part is opposite with the permanent magnet and separately, the coil is configurable for magnetizing the suspending part, the permanent magnet is configured as forming magnetic field force with the suspending part, to drive the magnetic conduction oscillator vibration.
Description
Technical field
The utility model relates to electroacoustic switch technology fields, more particularly, to a kind of resonant mode electromagnetic driver.
Background technique
Electronic product compared with prior art, can be made more frivolous by screen sounding device.And since screen is sent out
Acoustic device depends on screen radiative acoustic wave, does not need that acoustic aperture is provided, therefore the appearance in electronic product is more succinct.
Screen sounding device mainly utilizes driver to generate vibration to screen, to radiate sound.Driver mainly uses humorous
Vibration formula with two kinds of direct-drive type.There are the oscillator and suspension for vibration in the inside of resonant mode driver.Oscillator vibration simultaneously passes through
Suspension passes this vibration.In this way, oscillator must have certain mass, to increase its inertia, utilization is bigger
Inertia passes bigger vibration.A part of direct-drive type driver is fixed on center (or other differences below screen
Can be used for fixed place with screen) on, another part is in conjunction with screen.Screen is vibrated by the effect of two parts power,
To make a sound.This driver must have sufficiently large driving force, and screen could be driven to generate enough amplitudes, radiation foot
The sound of enough volumes.
However, the quality of oscillator is excessive, serious high frequency attenuation will lead to, this driver is unsuitable for for high frequency sounding
Device.Further, since the rigidity of screen is excessive, needs just directly drive very much screen vibration energetically, cause device power consumption excessively high.
Accordingly, it is desirable to provide a kind of new technical solution, to solve the above technical problems.
Utility model content
One purpose of the utility model is to provide a kind of new solution of electromagnetic driver.
According to one aspect of the disclosure, a kind of electromagnetic driver is provided.The electromagnetic driver includes shell, magnetic conduction vibration
Son, coil and permanent magnet, the shell have accommodating chamber, and the magnetic conduction oscillator, the coil and the permanent magnet are arranged on
In the accommodating chamber, the magnetic conduction oscillator includes fixed part and suspending part interconnected, the fixed part and the shell shape
At relatively fixed, the suspending part is suspended in the accommodating chamber, and at least part of the suspending part is opposite with the permanent magnet
And separately, the coil is configurable for magnetizing the suspending part, and the permanent magnet is configured as and the suspending part
Magnetic field force is formed, to drive the magnetic conduction oscillator vibration.
Optionally, the shell includes the first shell and second housing snapped together, and the fixed part is fixed on
Between first shell and the second housing.
Optionally, the suspending part is passed through from the coil and is pierced by from one end of the coil, the suspending part
Opposite with the permanent magnet at least part of outer portion positioned at the coil, the coil and the suspending part are separately.
Optionally, the permanent magnet is multiple, and multiple permanent magnets exist along the extending direction setting of the magnetic conduction oscillator
On the inner wall of the shell.
Optionally, the fixed part is clamped and fixed in the coil.
Optionally, the permanent magnet includes the first magnet and the second magnet being oppositely arranged, first magnet and described
The polarity of the side close to each other of second magnet on the contrary, the hanging part in first magnet and second magnet it
Between, and separately with first magnet and second magnet.
Optionally, the second housing is in planar structure, and first shell forms the accommodating chamber with open end,
The second housing lid is closed in the open end, and the permanent magnet includes third magnet, and the third magnet is fixed on described
On first shell, the position opposite with the third magnet of the second housing forms vacancy section, in the vacancy section peripheral hardware
It is equipped with shielding piece.
Optionally, the shell includes the first inner wall and the second inner wall being oppositely arranged along direction of vibration, the permanent magnet
It is arranged on first inner wall or second inner wall, the suspending part forms the bending knot for avoiding the permanent magnet
Structure, to increase the distance between the suspending part and the permanent magnet.
Optionally, it is filled out between the suspending part and the permanent magnet and/or between the suspending part and the coil
Filled with magnetic liquid.
Optionally, the shell is prepared by permeability magnetic material.
The characteristics of according to one embodiment of the disclosure, which has amplitude big, is suitable for high-frequency vibration.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiments of the present invention, and
And together with its explanation for explaining the principles of the present invention.
Fig. 1 is the exploded view of the first electromagnetic driver of embodiment according to the present utility model.
Fig. 2 is the transverse sectional view of the first electromagnetic driver of embodiment according to the present utility model.
Fig. 3 is the longitudinal sectional view of the first electromagnetic driver of embodiment according to the present utility model.
Fig. 4 is the exploded view of second of electromagnetic driver of embodiment according to the present utility model.
Fig. 5 is the transverse sectional view of second of electromagnetic driver of embodiment according to the present utility model.
Fig. 6 is the longitudinal sectional view of second of electromagnetic driver of embodiment according to the present utility model.
Fig. 7 is the exploded view of the third electromagnetic driver of embodiment according to the present utility model.
Fig. 8 is the transverse sectional view of the third electromagnetic driver of embodiment according to the present utility model.
Fig. 9 is the longitudinal sectional view of the third electromagnetic driver of embodiment according to the present utility model.
Figure 10 is the transverse sectional view of the 4th kind of electromagnetic driver of embodiment according to the present utility model.
Figure 11-13 is the schematic diagram of the magnetic conduction oscillator of the different modalities of embodiment according to the present utility model.
Description of symbols:
11: the first shells；12: second housing；13: the first magnet；14: the second magnet；15: third magnet；16: coil；
17: fixed part；18: suspending part；19: vacancy section；20: shielding piece；21:FPCB；22: gap；23: bending structure；24: magnetic conduction vibration
Son；25: magnetic liquid；26: the four magnet.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
According to one embodiment of the disclosure, a kind of electromagnetic driver is provided.The electromagnetic driver is resonant mode excitation
Device.
As shown in Fig. 1,4,7, which includes shell, magnetic conduction oscillator 24, coil 16 and permanent magnet.Shell has
Accommodating chamber.Magnetic conduction oscillator 24, coil 16 and permanent magnet are arranged in accommodating chamber.For example, shell includes snapped together
One shell 11 and second housing 12.Accommodating chamber is formed in the inside of two shells 11,12.For example, the entirety of shell is square.The
One shell 11 forms the accommodating chamber with open end.The lid of second housing 12 is closed in open end.The material of shell be metal, plastics,
Ceramics, glass etc..
For example, the first shell 11 and second housing 12 are prepared by permeability magnetic material.Permeability magnetic material can be but not limit to
In Ferrite Material, wolfram steel or SPCC etc..Above-mentioned material all has good magnetic conduction effect.Since the thickness of permanent magnet is usual
It is smaller.Magnetizing direction through-thickness.In this way, two magnetic pole magnet short-cut paths easy to form.Permanent magnet is arranged in the first shell 11
Or on second housing 12.Since two shells 11,12 have magnetic conduction effect, therefore it can be effectively prevented from the generation of magnet short-cut path, shown
Write the magnetism for improving permanent magnet.
Magnetic conduction oscillator 24 includes fixed part 17 interconnected and suspending part 18.Magnetic conduction oscillator 24 by permeability magnetic material prepare and
At.Permeability magnetic material is as previously described.For example, magnetic conduction oscillator 24 is strip structure or other structures.
Fixed part 17 forms relatively fixed with shell.Suspending part 18 is suspended in accommodating chamber.For example, the directly quilt of fixed part 17
It is fixed on shell.As shown in figures 2 and 5, fixed part 17 is fixed between the first shell 11 and second housing 12.By viscous
Knot, welding, the mode being clamped form fixation.Fixed part 17 is clamped between the first shell 11 and second housing 12, such energy
Enough firmly fix magnetic conduction oscillator 24.
It is also possible that fixed part 17 formed by other component with shell it is relatively fixed.As shown in figure 8,17 quilt of fixed part
It is fixedly clamped in coil 16.Coil 16 is fixed on shell by binder etc..
At least part of suspending part 18 is opposite with permanent magnet and separately.Coil 16 is configurable for magnetization suspending part
18.Between suspending part 18 and permanent magnet separately, to form oscillation space.
Permanent magnet is configured as forming magnetic field force with suspending part 18, to drive magnetic conduction oscillator 24 to vibrate.Permanent magnet and hanging
Magneticaction between portion 18 provides driving force for the vibration of magnetic conduction oscillator 24.
In the utility model embodiment, magnetic conduction oscillator 24 forms cantilever design.Suspending part 18 is energized the magnetization of coil 16,
To have magnetism.The polarity of permanent magnet is identical as the polarity of suspending part 18 or on the contrary, to form repulsion or gravitation.When
When coil 16 passes to alternating current, magnetic conduction oscillator 24 generates of reciprocating vibration.
Relative to the mode that magnetic drive mass block or permanent magnet vibrate, the quality of the magnetic conduction oscillator 24 of cantilever design
Gently, high frequency attenuation is small, is capable of providing stable high-frequency vibration.And the amplitude of magnetic conduction oscillator 24 in high frequency is bigger, and response is more
Rapidly.
In addition, different mode of oscillations can be presented under the action of different frequency motivates in the magnetic conduction oscillator 24 of cantilever design.
Mode of oscillation under different frequency can improve the Oscillation Amplitude of magnetic conduction oscillator 24 in the frequency separation, to widen electromagnetic driver
Frequency range.
For example, as shown in figure 11, at a lower frequency, magnetic conduction oscillator 24 is in 1 rank mode, and whole vibration is presented in suspending part 18
It is dynamic；As shown in figure 12, under slightly higher frequency, magnetic conduction oscillator 24 is in 2 rank mode, and the distal end of suspending part 18 is bent；Such as figure
Shown in 13, at high frequencies, magnetic conduction oscillator 24 is in 3 rank mode, and the different parts of suspending part 18 can be bent.It is above-mentioned not
Same mode is able to ascend the amplitude of magnetic conduction oscillator 24, so that vibration in high frequency can be more significant.
When magnetic conduction oscillator is arranged, the mode of oscillation of length direction variation should be reinforced, and inhibit width or short transverse
The mode of oscillation of variation, to prevent the local stress of magnetic conduction oscillator 24 excessive.
In one example, as shown in Fig. 2,3,5,8, suspending part 18 is passed through from coil 16 and is worn from one end of coil 16
Out.Suspending part 18 is located at coil 16 at least local opposite with permanent magnet of outer portion.Coil 16 is in hollow structure.Suspending part
18 along the axially extending of coil 16.Suspending part 18 is partially located in the hole of coil 16.In this way, the setting of magnetic conduction oscillator 24 is abundant
The space inside coil 16 is utilized, is conducive to the Miniaturization Design of electromagnetic driver.
In addition, suspending part 18 is located at the center of coil 16.This make suspending part 18 be magnetized more sufficiently, it is magnetic more
By force, the driving force of electromagnetic driver is bigger.
Preferably, coil 16 and suspending part 18 separately, provide oscillation space with the vibration for suspending part 18.In suspending part
The 18 upper and lower side along direction of vibration forms gap 22.In this way, it is able to extend the length of suspending part 18, so that electric
The amplitude of magnetic pumping device is bigger.
In addition, spaced mode makes the heat dissipation effect of coil 16 more preferable.
In other examples, multi-point support is formed between coil 16 and suspending part 18.This setup, coil 16 dissipate
Heat is rapider, improves the permanence operation of electromagnetic driver.
In one example, as shown in 6,8,9, fixed part 17 is clamped and fixed in coil 16.For example, 16 winding of coil
In the outside of fixed part 17.Coil 16 and fixed part 17 are fixed by binder.In this way, magnetic conduction oscillator 24
Fixation it is stronger.Magnetic conduction effect of the fixed part 17 in coil 16 is more significant, can significantly improve the magnetism of suspending part 18, make
The driving force for obtaining electromagnetic driver is bigger.
In one example, as shown in Figure 4,5, permanent magnet includes the first magnet 13 and the second magnet 14 being oppositely arranged.
For example, the first magnet 13 and the second magnet 14 are bar magnet.First magnet 13 and the second magnet 14 can be but do not limit to
In ferrite lattice and ndfeb magnet.
The polarity of the side close to each other of first magnet 13 and the second magnet 14 is opposite.In this way, in 13 He of the first magnet
Magnetic induction between second magnet 14 is stronger.Suspending part 18 is between the first magnet 13 and the second magnet 14, and with first
Magnet 13 and the second magnet 14 are separately.For example, the first magnet 13 and the second magnet 14 be symmetrically disposed in suspending part 18 it is upper,
Downside.The upper surface of suspending part 18 is extremely opposite with the N of the first magnet 13, and lower surface is extremely opposite with the S of the second magnet 14.In coil
When 16 energization, suspending part 18 is magnetized to the pole N.
In this way, suspending part 18 repels each other with the first magnet 13, and attracting with the second magnet 14.This makes suspending part 18 by two
The magneticaction of a magnet, and the direction of two active forces is identical.The driving force of electromagnetic driver is stronger, and amplitude is bigger, vibration
Dynamic sensitivity is higher.
Certainly, permanent magnet is not limited to two, can also be arranged to more.For example, multiple permanent magnets are along magnetic conduction oscillator
Extending direction is arranged on the inner wall of the housing.For example, as shown in Figure 10,5 the 4th magnet 26 are disposed in parallel in the first shell 11
On.The magnetizing direction of 5 the 4th magnet 26 is parallel to direction of vibration, and polarity is identical.
It is also possible that multiple permanent magnets form last of the twelve Earthly Branches nurse hertz magnet array, to increase magnetism.
Certainly, the set-up mode of multiple permanent magnets is without being limited thereto, and those skilled in the art can carry out according to actual needs
Setting.
In one example, as shown in figure 8, second housing 12 is in planar structure.The lid of second housing 12 is closed in the first shell
On 11.Permanent magnet includes third magnet 15.Third magnet 15 is fixed on the first shell 11.Second housing 12 with third magnetic
The opposite position of iron 15 forms vacancy section 19.Shielding piece 20 is provided with outside vacancy section 19.
For example, third magnet 15 is bar magnet.Third magnet 15 is fixed in the first shell 11 by binder.It engraves
Dead zone 19 can form evacuation for the vibration of magnetic conduction oscillator 24, to provide bigger oscillation space, this makes magnetic conduction oscillator 24
Amplitude can do it is bigger.The third magnet 15 of bigger quality can be set in remaining space.In this way, third magnetic
The magnetic field of iron 15 is stronger, and the driving force of electromagnetic driver is bigger, and vibration sensitivity is higher, and vibration sense is stronger.
Shielding piece 20 is made by permeability magnetic material, can be played the role of magnetic conduction, be reduced the generation of leakage field, so that permanent magnetism
The magnetic field of body is stronger, and the driving force of electromagnetic driver is bigger.
As shown in Fig. 2,5,8, second housing 12 has the extension for the side wall for stretching out the first shell 11, sets on extension
It is equipped with FPCB21.FPCB21 is electrically connected with coil 16.External equipment is powered by FPCB21 to coil 16.
In one example, as shown in Fig. 2,8, shell includes in the first inner wall and second being oppositely arranged along direction of vibration
Wall.It is on the first inner wall or the second inner wall that permanent magnet, which is arranged on,.Suspending part 18 forms the bending knot for avoiding permanent magnet
Structure 23, to increase the distance between suspending part 18 and permanent magnet.For example, the first inner wall is located on the first shell 11, the second inner wall
On second housing 12.Third permanent magnet 15 is fixed on the first shell 11.The setting of bending structure 23 is so that suspending part
18 can arrange to the direction far from third magnet 15, to provide installation space for third magnet 15.In this way, can be set
The third magnet 15 of bigger quality, so that the magnetic field of third magnet 15 is stronger, the driving force of electromagnetic driver is bigger.
In one example, it is filled between suspending part 18 and permanent magnet and/or between suspending part 18 and coil 16
Magnetic liquid 25.For example, magnetic liquid 25 is mixed by nanoscale magnetic retention particle, base load liquid and surfactant, it is a kind of
Stable colloidal liquid.Magnetic liquid 25 does not show magnetism in static state；When adding magnetic fields outside, magnetic liquid 25 is magnetized, and shows
It is magnetic out.Magnetic liquid 25 has viscosity, damping can be generated, to keep the vibration of magnetic conduction oscillator 24 more steady.
In addition, magnetic liquid 25 has permeance.In this way, magnetic liquid 25 can be adsorbed on the high area of magnetic field strength of suspending part 18
Domain, without arbitrarily flowing, stability is high.
According to another embodiment of the present disclosure, a kind of screen sounding device is provided.The device include screen ontology and
Above-mentioned electromagnetic driver.Electromagnetic driver is arranged on screen ontology by elastic buffer component.
The screen sounding device has high sensitivity, and loudness is big, the good feature of sounding effect.
For example, elastic buffer component can be the flexible materials such as bubble silk floss, sponge, rubber, silica gel, plastics.Elasticity
Buffer element can effectively buffer impact of the electromagnetic driver to screen ontology, improve the durability of screen sounding device.
In addition, elastic buffer component can play heat-insulated effect, it can prevent the heat of electromagnetic driver from conducting to screen
Curtain ontology, causes to burn.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that example above merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of electromagnetic driver, wherein including shell, magnetic conduction oscillator, coil and permanent magnet, the shell has accommodating chamber,
The magnetic conduction oscillator, the coil and the permanent magnet are arranged in the accommodating chamber, and the magnetic conduction oscillator includes mutually interconnecting
The fixed part and suspending part connect, the fixed part form relatively fixed with the shell, and the suspending part is suspended at the receiving
Intracavitary, at least part of the suspending part is opposite with the permanent magnet and separately, and the coil is configurable for magnetizing
The suspending part, the permanent magnet is configured as forming magnetic field force with the suspending part, to drive the magnetic conduction oscillator vibration.
2. electromagnetic driver according to claim 1, wherein the shell includes the first shell snapped together and
Two shells, the fixed part are fixed between first shell and the second housing.
3. electromagnetic driver according to claim 1, wherein the suspending part passes through from the coil and from the line
One end of circle is pierced by, the suspending part be located at the coil with outer portion at least part it is opposite with the permanent magnet, it is described
Coil and the suspending part are separately.
4. electromagnetic driver according to claim 1, wherein the permanent magnet be it is multiple, multiple permanent magnets are along institute
The extending direction for stating magnetic conduction oscillator is arranged on the inner wall of the shell.
5. electromagnetic driver according to claim 1, wherein the fixed part is clamped and fixed in the coil.
6. electromagnetic driver according to claim 1, wherein the permanent magnet includes the first magnet being oppositely arranged and
The polarity of the side close to each other of two magnet, first magnet and second magnet on the contrary, the hanging part in institute
It states between the first magnet and second magnet, and separately with first magnet and second magnet.
7. electromagnetic driver according to claim 2, wherein the second housing is in planar structure, first shell
The accommodating chamber with open end is formed, the second housing lid is closed in the open end, and the permanent magnet includes third magnetic
Iron, the third magnet are fixed on first shell, the position opposite with the third magnet of the second housing
Vacancy section is formed, shielding piece is provided with outside the vacancy section.
8. electromagnetic driver according to claim 1, wherein the shell includes first be oppositely arranged along direction of vibration
Inner wall and the second inner wall, the permanent magnet are arranged on first inner wall or second inner wall, and the suspending part is formed
For avoiding the bending structure of the permanent magnet, to increase the distance between the suspending part and the permanent magnet.
9. electromagnetic driver according to claim 1, wherein between the suspending part and the permanent magnet and/or
Magnetic liquid is filled between the suspending part and the coil.
10. electromagnetic driver according to claim 1, wherein the shell is prepared by permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821743733.4U CN209255155U (en) | 2018-10-25 | 2018-10-25 | Electromagnetic driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821743733.4U CN209255155U (en) | 2018-10-25 | 2018-10-25 | Electromagnetic driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209255155U true CN209255155U (en) | 2019-08-16 |
Family
ID=67558964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821743733.4U Active CN209255155U (en) | 2018-10-25 | 2018-10-25 | Electromagnetic driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209255155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097677A (en) * | 2018-10-25 | 2020-05-05 | 歌尔股份有限公司 | Electromagnetic exciter |
-
2018
- 2018-10-25 CN CN201821743733.4U patent/CN209255155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097677A (en) * | 2018-10-25 | 2020-05-05 | 歌尔股份有限公司 | Electromagnetic exciter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209057343U (en) | A kind of electronic equipment | |
| KR101583641B1 (en) | Haptic actuator | |
| CN106300865B (en) | Linear vibration motor | |
| CN109309892A (en) | Electromagnetic driver and screen sounding device | |
| CN208821081U (en) | Electromagnetic driver and screen sounding device | |
| KR102648129B1 (en) | transducer device | |
| WO2018058809A1 (en) | Linear vibration motor | |
| CN109068244A (en) | Electromagnetic driver and screen sounding device | |
| CN209267624U (en) | Screen vibration-sound generating device and electronic product | |
| WO2018058808A1 (en) | Linear vibration motor, and electronic device | |
| CN107781339B (en) | Electromagnetic actuator | |
| CN111082630B (en) | Vibration device | |
| CN209642963U (en) | Vibration-sound generating device and electronic product | |
| KR101434264B1 (en) | Haptic actuator | |
| CN207652282U (en) | A kind of linear vibration motor | |
| WO2020224281A1 (en) | Device for producing sound by means of vibration, and electronic product | |
| CN111049349A (en) | Vibrating device and electronic product | |
| CN208571882U (en) | Electromagnetic driver and screen sounding device | |
| CN209389915U (en) | Linear vibration electric motor | |
| CN208821074U (en) | Electromagnetic driver and screen sounding device | |
| CN209255155U (en) | Electromagnetic driver | |
| CN206023534U (en) | Resonant motor | |
| CN107070159B (en) | Linear vibration motor | |
| CN106507252B (en) | Multi resonant vibrating system bone-conduction speaker monomer | |
| CN211352007U (en) | Vibrating device and electronic product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |