CN109309892A - Electromagnetic driver and screen sounding device - Google Patents
Electromagnetic driver and screen sounding device Download PDFInfo
- Publication number
- CN109309892A CN109309892A CN201811204972.7A CN201811204972A CN109309892A CN 109309892 A CN109309892 A CN 109309892A CN 201811204972 A CN201811204972 A CN 201811204972A CN 109309892 A CN109309892 A CN 109309892A
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- 230000005405 multipole Effects 0.000 claims abstract description 43
- 230000005415 magnetization Effects 0.000 claims abstract description 42
- 238000001727 in vivo Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
-
- 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
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a kind of electromagnetic driver and screen sounding devices.The driver includes: that stator module includes shell and coil, and the inside of shell forms cavity, and coil is set in the cavity；Vibrator component includes integrally formed multipole magnetization permanent magnet, multipole magnetization permanent magnet has multiple magnetic portions, the magnetic line of force of multiple magnetic portions is configured as being mutually linked, to collectively form magnetic loop, the polarity for being located at two magnetic portions of two ends along direction of vibration of multipole magnetization permanent magnet is directed toward coil, and polarity is on the contrary, vibrator component is matched with coil；Vibrator component is connect with elastic element, and in the cavity by elastic element suspension.
Description
Technical field
The present invention relates to electroacoustic switch technology fields, fill more particularly, to a kind of electromagnetic driver and screen sounding
It sets.
Background technique
In order to improve the screen accounting (i.e. the ratio between screen area and front face area) of the electronic products such as mobile phone, cancelling earpiece becomes
A kind of development trend.In some schemes, earpiece is replaced using screen sounding device.Screen sounding device generally includes to shield
Curtain ontology and the electromagnetic driver being arranged on screen ontology.Electromagnetic driver vibrates, so that screen ontology be driven to vibrate
To make a sound.
Existing electromagnetic driver generally includes stator, oscillator and elastic slice.Stator includes shell and coil.Oscillator includes connecting
The permanent magnet and mass block being connected together.Oscillator is suspended in the cavity of shell by elastic slice.Coil is fixed on the inner wall of shell
On.
In this configuration, the polar permanent magnet of a single direction or muti-piece permanent magnet combination multipolarity are usually set.
The magnetizing direction of permanent magnet is uniform, is usually parallel to direction of vibration or perpendicular to direction of vibration.This electromagnetism
The magnetic field utilization rate of driver is low, and driving force is small, and sensitivity is low.
Accordingly, it is desirable to provide a kind of new technical solution, to solve the above technical problems.
Summary of the invention
It is an object of the present invention to provide a kind of new solutions of electromagnetic driver.
According to the first aspect of the invention, a kind of electromagnetic driver is provided.The driver includes: stator module, described
Stator module includes shell and coil, and the inside of the shell forms cavity, and the coil is set in the cavity；Oscillator
Component, the vibrator component include integrally formed multipole magnetization permanent magnet, and the multipole magnetization permanent magnet has multiple magnetic
Property portion, the magnetic line of force of multiple magnetic portions is configured as being mutually linked, and to collectively form magnetic loop, is located at the multipole
The polarity of two magnetic portions of two ends along direction of vibration of charging permanent magnet is directed toward the coil, and polarity on the contrary,
The vibrator component is matched with the coil；And elastic element, the vibrator component are connect with the elastic element, and
In the cavity by elastic element suspension.
Optionally, the vibrator component further includes counterweight part, and the counterweight part is connect with the multipole magnetization permanent magnet, institute
Elastic element is stated to connect with the counterweight part.
Optionally, there are two the counterweight part settings, the counterweight part and the elastic element are corresponded；The multipole
Charging permanent magnet includes long side and short side, and the long side is vertical with direction of vibration, and two counterweight parts are separately positioned on institute
State two ends of long side.
Optionally, be respectively formed notch at the both ends of the long side, two notches relative to the multipole magnetization forever
The geometric center of magnet is centrosymmetric, and two counterweight parts are separately positioned in two notches.
Optionally, the multipole magnetization permanent magnet is divided into the first magnetic portion, third magnetic portion and the second magnetic along direction of vibration
Property portion, first magnetic portion and second magnetic portion are located at the multipole magnetization permanent magnet along two of direction of vibration
End, the magnetizing direction of the third magnetic portion are parallel to direction of vibration, first magnetic portion and second magnetic portion
Magnetizing direction is perpendicular to direction of vibration, and magnetizing direction is opposite.
Optionally, it when magnetizing, first magnetizes to the third magnetic portion, then to first magnetic portion and described
Second magnetic portion magnetizes.
Optionally, the shell includes the roof and bottom wall being oppositely arranged on direction of vibration, in the roof and described
The boss protruded to the cavity is provided at least one of bottom wall, one end of the elastic element is fixed on the boss
On.
Optionally, including multiple vibrator components, the quantity of the vibrator component than the coil quantity more than one, it is described
Vibrator component is arranged alternately with the coil.
Optionally, including multiple coils, the quantity of the coil than the vibrator component quantity more than one, the coil
It is arranged alternately with the vibrator component.
According to the second aspect of the disclosure, a kind of screen sounding device is provided.The device includes screen ontology and above-mentioned
Electromagnetic driver, the electromagnetic driver are arranged on the screen ontology.
Optionally, the electromagnetic driver is arranged on the screen ontology by elastic buffer component.
According to one embodiment of the disclosure, which has high sensitivity, and starting of oscillation speed is fast, and vibration sense is experienced
The characteristics of.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention 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 embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the exploded view according to the electromagnetic driver of one embodiment of the disclosure.
Fig. 2 is the cross-sectional view according to the electromagnetic driver of one embodiment of the disclosure.
Fig. 3 is the cross-sectional view according to the electromagnetic driver of another angle of one embodiment of the disclosure.
Fig. 4 is the schematic diagram according to the electromagnetic driver of one embodiment of the disclosure.
Description of symbols:
11: upper casing；12: middle shell；13: the first elastic slices；14: the first metal blocks；15: the second elastic slices；16: the second metal blocks；
17: the first magnetic portions；18: the second magnetic portions；19: third magnetic portion；20: coil；21:FPCB；22: lower casing；23: multipole magnetization
Permanent magnet；25: long side wall；26: short side wall.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
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.As shown in Figure 1, the driver includes fixed
Sub-component, vibrator component and elastic element.
Stator module includes shell and coil 20.The inside of shell forms cavity.Coil 20 is set in the cavity.
As shown in Figure 1, shell is in rectangular parallelepiped structure.Shell includes the upper casing 11, middle shell 12 and lower casing 22 snapped together.
Cavity is formed inside them.Middle shell 12 includes roof, bottom wall and two short side walls being oppositely arranged for connecting roof and bottom wall
26.The length of roof and bottom wall is greater than the length that two short side walls are.Roof, bottom wall, upper casing 11 and lower casing 22 are long side wall
25.The length of long side wall 25 is greater than the length of short side wall 26.
Coil 20 is by gluing knot in lower casing 22.Coil 20 is electrically connected by FPCB21 with external circuit.For example, coil 20
In flat structure, to save the space of inside cavity.
As shown in figure 4, vibrator component includes integrally formed multipole magnetization permanent magnet 23.Multipole magnetization permanent magnet 23 is iron
Oxysome magnet or ndfeb magnet etc..For example, multipole magnetization permanent magnet 23 by stock, casting, sintering and etc. one at
Type.Multipole magnetization permanent magnet 23 can be bar magnet, circular magnet, arc-shaped magnet etc..
Multipole magnetization permanent magnet 23 has multiple magnetic portions 17,18,19.The magnetic line of force of multiple magnetic portions 17,18,19
It is configured as being mutually linked, to collectively form magnetic loop.Be located at the multipole magnetization permanent magnet 23 along direction of vibration
The polarity of two magnetic portions of two ends is directed toward coil, and polarity is opposite.Vibrator component is connect with elastic element, and is led to
Cross elastic element suspension in the cavity.Refer to the direction of the magnetic line of force vertically or basically perpendicular to coil for example, being directed toward coil
Principal plane.
In this way, the magnetic induction of vibrator component can be effectively improved.Vibrator component and 20 phase interworking of coil
It closes, to be vibrated.I.e. coil 20 is after powered up by the effect of electromagnetic force.Vibrator component receives the reaction force of coil 20
Effect is to generate vibration.
In one example, as shown in Figs 1-4, multipole magnetization permanent magnet 23 along direction of vibration be divided into the first magnetic portion 17,
Third magnetic portion 19 and the second magnetic portion 18.First magnetic portion 17 and the second magnetic portion 18 are located at multipole magnetization permanent magnet 23
Along two ends of direction of vibration.The magnetizing direction of third magnetic portion 19 is parallel to direction of vibration.First magnetic portion 17 and second
The magnetizing direction of magnetic portion 18 is perpendicular to direction of vibration, and magnetizing direction is opposite.Direction of vibration is as shown in A arrow in Fig. 2.
In this example embodiment, as shown in Fig. 2 or 4, coil is located at the side of multipole magnetization permanent magnet 23, so that first is magnetic
Portion 17 and the second magnetic portion 18 are directed to coil.In the initial state, the electric current at the position of the corresponding coil of the first magnetic portion 17
The current direction at the position of direction coil corresponding with the second magnetic portion 18 is on the contrary, so that the line that multipole magnetization permanent magnet 23 receives
The direction of the driving force of the different parts of circle 20 is identical.
Certainly, the mode of magnetizing of multipole magnetization permanent magnet is not limited to the above embodiments, as long as being capable of forming magnetic loop.
Those skilled in the art can be set according to actual needs the position of coil 20, in order to be cooperated with vibrator component.
For example, the side wall of shell is parallel to direction of vibration.Coil 20 is arranged in long side wall 25, for example, on lower casing 22.
The long axis of coil 20 is parallel to upper casing 11, lower casing 22.The face that this setup makes coil 20 and vibrator component interact
Product is bigger, and the driving force of vibrator component is bigger.
In addition, the space that coil 20 occupies is small.
In one example, it when magnetizing, first magnetizes to third magnetic portion 19.Then to the first magnetic portion 17 and
Two magnetic portions 18 magnetize.For example, magnetizing coil is arranged to vertical direction first, to the matrix of multipole magnetization permanent magnet 23
The entirety of material magnetizes.Then, by magnetizing coil arrangement horizontally, with respectively to two ends of basis material into
Row magnetizes, to form the first magnetic portion 17 and the second magnetic portion 18.In this step, the zone of action of magnetizing coil is controlled, with
The middle part of multipole magnetization permanent magnet 23 is prevented, i.e. third magnetic portion 19 is interfered.After the completion of magnetizing, multipole magnetization permanent magnetism is formed
Body 23.
Certainly, the magnetic portion of multipole magnetization permanent magnet 23, magnetization method are not limited to the above embodiments, those skilled in the art
It can be configured according to actual needs.
In the embodiments of the present disclosure, vibrator component includes integrally formed multipole magnetization permanent magnet 23.Multipole magnetization permanent magnetism
Body 23 has multiple magnetic portions.Multiple magnetic portion magnetic lines of force are configured as being mutually linked, to collectively form magnetic loop.Positioned at more
The polarity of two magnetic portions of two ends along direction of vibration of pole charging permanent magnet 23 is directed toward coil, and polarity is opposite.
This effectively improves the magnetic induction of vibrator component.The driving force of the electromagnetic driver of same volume effectively improves.Vibration
The starting of oscillation speed of sub-component is effectively accelerated.The sensitivity of electromagnetic driver significantly improves.
In one example, as shown in Fig. 1 or 3, vibrator component further includes counterweight part.Counterweight part and multipole magnetization permanent magnet
23 connections.Elastic element is connect with counterweight part.For example, counterweight part is metal block.By glue by counterweight part and multipole magnetization permanent magnetism
Iron connection.Elastic element is elastic slice.For example, elastic slice is linear, U-shaped or zigzag etc..Elastic slice is metal material, for example, the
One elastic slice and the second elastic slice.One end of elastic slice is welded on corresponding counterweight part by the way of welding.Counterweight part increases
The quality of vibrator component improves the vibration sense of electromagnetic driver.
In one example, there are two counterweight part settings.For example, the first metal block 14 and the second metal block 16.Counterweight part
It is corresponded with elastic element.For example, the first elastic slice 13 and the second elastic slice 15.Multipole magnetization permanent magnet 23 includes long side and short
Side.Long side refers to the longest side of length in multipole magnetization permanent magnet 23.Long side is vertical with direction of vibration.Two counterweight parts are distinguished
Two ends of long side are set.For example, the first metal block and the second metal block are glued respectively to multipole magnetization permanent magnet 23
Two ends of long side.The assembly of this setup, counterweight part is easier.
In addition, counterweight part is not take up the space of direction of vibration.The vibration surplus of electromagnetic driver is bigger.
In one example, notch (not shown) is respectively formed at the both ends of long side.Two notches are relative to multipole magnetization
The geometric center of permanent magnet is centrosymmetric.Two counterweight parts are separately positioned in two notches.
For example, the first magnetic portion 17 goes material processing to form the first notch at one end.First metal block 14 is fixed on
In first notch.For example, being bonded by glue.Second magnetic portion 18 one end opposite with the first notch go material processing with
The second notch is formed, the second metal block 16 is fixed in the second notch.For example, being bonded by glue.
By mode metal block being fixed in correspondingly notch, can effectively reduce metal block the space occupied,
This makes the vibration surplus of vibrator component bigger.The amplitude of electromagnetic driver is bigger, and vibration sense is stronger.
In one example, as shown in figure 3, the upper surface of the first metal block 14 and the upper surface of the first magnetic portion 17 are flat
Together.The lower surface of second metal block 16 is concordant with the lower surface of the second magnetic portion 18.One end of first elastic slice 13 is welded on
On the upper surface of one metal block 14.One end of second elastic slice 15 is welded on the lower surface of the second metal block 16.
This setup makes the connection structure of vibrator component and elastic element more regular, takes full advantage of in cavity
The space in portion, vibrating effect are more excellent.
In general, the inner wall of elastic slice and shell is directly connected to.For example, by one end of elastic slice by the way of welding
Welding is on the inner wall of the housing.In vibration, vibrator component is easy to collide with shell sounding, to form noise.
(not shown) in one example is provided with the boss protruded to cavity on roof.First elastomer it is another
End is fixed on boss.
And/or
The boss protruded to cavity is provided on bottom wall.The other end of second elastomer is fixed on boss.
For example, being respectively formed boss at the middle part of two long side walls 25 of middle shell 12.First elastic slice 13 and the second elastic slice 15
It is respectively welded on two boss.In vibration, boss forms difference in height with other positions of corresponding inner wall.Difference in height is
The vibration of vibrator component provides space.This mode can be effectively reduced the collision probability of vibrator component and shell.
In one example, electromagnetic driver includes multiple vibrator components.Quantity of the quantity of vibrator component than coil 20
More one.Vibrator component is arranged alternately with coil 20.
It is also possible that electromagnetic driver includes multiple coils 20.The quantity of coil 20 than vibrator component quantity more than one.
Coil 20 is arranged alternately with vibrator component.Above-mentioned set-up mode can be obviously improved the vibration sense experience of electromagnetic driver.
Those skilled in the art can select the quantity of coil 20 and vibrator component according to actual needs.
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.
The screen sounding device has high sensitivity, and loudness is big, the good feature of sounding effect.
In one example, electromagnetic driver is arranged on screen ontology by elastic buffer component.Elastic buffer member
Part can be the flexible materials such as bubble silk floss, sponge, rubber, silica gel, plastics.Elastic buffer component can effectively buffer electricity
Impact of the magnetic pumping device to screen ontology, improves 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 some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (11)
1. a kind of electromagnetic driver, it is characterised in that: include:
Stator module, the stator module include shell and coil, and the inside of the shell forms cavity, and the coil is set
In the cavity；
Vibrator component, the vibrator component include integrally formed multipole magnetization permanent magnet, and the multipole magnetization permanent magnet has
The magnetic line of force of multiple magnetic portions, multiple magnetic portions is configured as being mutually linked, and to collectively form magnetic loop, is located at
The polarity of two magnetic portions of two ends along direction of vibration of the multipole magnetization permanent magnet is directed toward the coil, and pole
Property is on the contrary, the vibrator component is matched with the coil；And
Elastic element, the vibrator component are connect with the elastic element, and are suspended at the chamber by the elastic element
In vivo.
2. electromagnetic driver according to claim 1, it is characterised in that: the vibrator component further includes counterweight part, described
Counterweight part is connect with the multipole magnetization permanent magnet, and the elastic element is connect with the counterweight part.
3. electromagnetic driver according to claim 2, it is characterised in that: there are two the counterweight part settings, the counterweight
Portion and the elastic element correspond；The multipole magnetization permanent magnet includes long side and short side, the long side and direction of vibration
Vertically, two counterweight parts are separately positioned on two ends of the long side.
4. electromagnetic driver according to claim 3, it is characterised in that: it is respectively formed notch at the both ends of the long side,
Two notches are centrosymmetric relative to the geometric center of the multipole magnetization permanent magnet, and two counterweight parts are distinguished
It is arranged in two notches.
5. electromagnetic driver according to claim 1, it is characterised in that: the multipole magnetization permanent magnet is along direction of vibration point
For the first magnetic portion, third magnetic portion and the second magnetic portion, first magnetic portion and second magnetic portion are located at institute
Two ends of the multipole magnetization permanent magnet along direction of vibration are stated, the magnetizing direction of the third magnetic portion is parallel to direction of vibration,
The magnetizing direction of first magnetic portion and second magnetic portion is perpendicular to direction of vibration, and magnetizing direction is opposite.
6. electromagnetic driver according to claim 5, it is characterised in that: when magnetizing, first to the third magnetic portion into
Row magnetizes, and then magnetizes to first magnetic portion and second magnetic portion.
7. electromagnetic driver according to claim 1, it is characterised in that: the shell includes opposite on direction of vibration sets
The roof and bottom wall set are provided with the boss protruded to the cavity, institute at least one of the roof and the bottom wall
The one end for stating elastic element is fixed on the boss.
8. electromagnetic driver according to claim 1, it is characterised in that: including multiple vibrator components, the vibrator component
Quantity than the coil quantity more than one, the vibrator component is arranged alternately with the coil.
9. electromagnetic driver according to claim 1, it is characterised in that: including multiple coils, the quantity ratio of the coil
The quantity of the vibrator component is one more, and the coil is arranged alternately with the vibrator component.
10. a kind of screen sounding device, it is characterised in that: including screen ontology and such as any one institute in claim 1-9
The electromagnetic driver stated, the electromagnetic driver are arranged on the screen ontology.
11. screen sounding device according to claim 10, it is characterised in that: the electromagnetic driver passes through elastic buffer
Element is arranged on the screen ontology.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811204972.7A CN109309892B (en) | 2018-10-16 | 2018-10-16 | Electromagnetic exciter and screen sounding device |
| PCT/CN2018/123671 WO2020077845A1 (en) | 2018-10-16 | 2018-12-26 | Electromagnetic exciter and screen sound production apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811204972.7A CN109309892B (en) | 2018-10-16 | 2018-10-16 | Electromagnetic exciter and screen sounding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109309892A true CN109309892A (en) | 2019-02-05 |
| CN109309892B CN109309892B (en) | 2022-07-19 |
Family
ID=65225554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811204972.7A Active CN109309892B (en) | 2018-10-16 | 2018-10-16 | Electromagnetic exciter and screen sounding device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109309892B (en) |
| WO (1) | WO2020077845A1 (en) |
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| CN110113696A (en) * | 2019-04-23 | 2019-08-09 | 歌尔股份有限公司 | Vibration-sound generating device and electronic product |
| 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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| CN110933565A (en) * | 2019-11-27 | 2020-03-27 | 浙江省东阳市东磁诚基电子有限公司 | A new type of screen sound exciter and its realization method |
| WO2021109558A1 (en) * | 2019-12-02 | 2021-06-10 | 歌尔股份有限公司 | Vibration exciter for electronic product, and electronic product |
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