CN109788406A - Magnetic circuit system and sounding device - Google Patents
Magnetic circuit system and sounding device Download PDFInfo
- Publication number
- CN109788406A CN109788406A CN201811613171.6A CN201811613171A CN109788406A CN 109788406 A CN109788406 A CN 109788406A CN 201811613171 A CN201811613171 A CN 201811613171A CN 109788406 A CN109788406 A CN 109788406A
- Authority
- CN
- China
- Prior art keywords
- frame
- magnet
- supporting part
- magnetic circuit
- circuit system
- 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.)
- Granted
Links
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
- H04R9/02—Details
-
- 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
- H04R9/04—Construction, mounting, or centering of coil
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention relates to a kind of magnetic circuit system and sounding devices.Magnetic circuit system includes the frame that center is provided with supporting part, the first magnet, the first washer set gradually in the one side of the supporting part, the N grade of the second magnet, the second washer set gradually in one side of the supporting part away from first magnet, the pole S of first magnet and second magnet is opposite；The frame also has the side wall positioned at the supporting part periphery, there is gap, the outer surface of first washer and second washer surrounds the end face for the frame to be formed not higher than the side wall between first magnet and second magnet and the side wall.
Description
Technical field
The invention belongs to acoustic-electric energy-conversion technique fields, more particularly it relates to a kind of magnetic circuit system and sounding device.
Background technique
Loudspeaker is a kind of energy transducer for electric signal being changed into acoustical signal, and audio electric energy passes through electromagnetism, piezoelectricity or quiet
Electrical effect makes cone basin or diaphragm vibration and generates resonance with the air of surrounding and make a sound.Loudspeaker is in stereo set
One most weak device, and for acoustics, it is a most important component again.
Existing loudspeaker generallys use washer and frame structure, washer is usual to improve internal magnetic force wire shaped
It is bonded on magnet, frame is due to taking into account the amendment magnetic line of force and supporting the effect of magnet.In the scene of the multiple loudspeakers of application,
The magnetic field strength that magnetic circuit system generates in conventional single loudspeaker is limited, and the performance improvements such as loudness of loudspeaker are to a certain extent
It is difficult to continue to lift up later；And under part speaker damage or idle situation, only when single speaker operation, not work
The magnetic circuit system of the loudspeaker of work is idle, causes the waste of resource.
Therefore, it is necessary to provide a kind of improved magnetic circuit system.
Summary of the invention
It is an object of the present invention to provide a kind of new solutions of magnetic circuit system.
According to an aspect of the present invention, a kind of magnetic circuit system is provided, the frame of supporting part is provided with including center,
The first magnet, the first washer set gradually in the one side of the supporting part deviates from first magnet in the supporting part
One side on the second magnet, the second washer that set gradually, the N grade of the pole S of first magnet and second magnet is relatively；
The frame also has the side wall positioned at the supporting part periphery, first magnet and second magnet and institute
Stating has gap between side wall, the outer surface of first washer and second washer is surrounded not higher than the side wall to be formed
The end face of the frame.
Optionally, the gap between the side wall and first magnet or/and second magnet is wide.
Optionally, first magnet and second magnet are symmetrical arranged or/and first washer and described second
Washer is symmetrical arranged.
Optionally, the through-hole penetrated through on the supporting part at least provided with one is provided at least one described through-hole
Colloid, first magnet and second magnet are connected by the colloid.
Optionally, the supporting part locally connect with the side wall and is made up of integral forming process.
Alternatively, the frame includes the first frame and the second frame, first frame includes the side wall, described second
Frame includes the supporting part, and first frame is assembled together with second frame so that the supporting part is positioned at described
Inside sidewalls.
Optionally, the frame further includes fixed part, and the fixed position is in the outside of the side wall, the fixed part quilt
It is configured for being connected and fixed the magnetic circuit system with external structure.
Optionally, the frame includes first frame and second frame, and second frame includes multiple institutes
Fixed part is stated, multiple fixed parts are symmetricly set on the outside of the supporting part, the side wall of an end face of first frame
On be provided with and be fastened on by first notch described with one-to-one first notch of the fixed part, first frame
The fixed part and the supporting part is set to be located at the inner side and outer side of the side wall in second frame.
Optionally, second frame further includes passing through with the one-to-one interconnecting piece of the fixed part, the fixed part
The interconnecting piece is fixedly connected with the supporting part, and the interconnecting piece is also fixedly connected with the side wall of first indentation, there.
Optionally, two end faces of the frame are respectively provided with there are two the second notch on side wall, the second notch quilt
It is configured for the entrance of voice coil leads or/and is pierced by.
According to another aspect of the present invention, a kind of sounding device is also provided, including shell and setting are on shell is intracorporal
The magnetic circuit system stated
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
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with the description for solving
Release the principle of the present invention.
Fig. 1 is the structural blast schematic diagram of some embodiments of the invention.
Fig. 2 is the schematic structural cross-sectional view of some embodiments of the invention.
Fig. 3 is the partial enlargement diagram in Fig. 2 at A.
Fig. 4 is the partial enlargement diagram in Fig. 2 at B.
Fig. 5 is the structural schematic diagram of frame in some embodiments of the invention.
Fig. 6 is the structural blast schematic diagram of frame in some embodiments of the invention.
In figure: 1 frame, 11 first frame, 12 first notches, 13 second notches, 14 second frame, 15 supporting parts, 16 is solid
Determine portion, 17 through-holes, 18 side walls, 19 interconnecting pieces, 21 first magnet, 22 second magnet, 31 first washers, 32 second washers 41 first
Voice coil, 42 second voice coils, 43 voice coil leads, 51 first vibrating diaphragm components, 52 second vibrating diaphragm components.
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 and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment 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.
A kind of magnetic circuit system provided by the invention, in some embodiments, referring to figs. 1 to Fig. 4, including frame 1, the first magnetic
Iron 21, the first washer 31, the second magnet 22 and the second washer 32.
The center of frame 1 is provided with supporting part 15.Frame 1 generallys use permeability magnetic material and is made, for correcting magnetic field,
Utmostly utilize magnetic field energy.The first magnet 21, the first washer 31 are set gradually in the one side of supporting part 15.In supporting part
15 set gradually the second magnet 22, the second washer 32 in the one side of the first magnet 21.Further, the two of the first magnet 21
It face can be fixed by the forms such as bonding and supporting part 15 and the first washer 31；The two sides of second magnet 22 can pass through bonding etc.
Form and supporting part 15 and the second washer 32 are fixed.
The N grade of the pole S of first magnet 21 and the second magnet 22 is opposite.First magnet 21 and the second magnet 22 pass through supporting part
15 are stacked, and heteropolar opposite, the two attracts each other, and can be improved the fixed stably solidity on the supporting part 15 of two blocks of magnet；Separately
Outside, have the effect of enhancing to magnetic field strength, improve whole magnetic field strength, can effectively improve the acoustics of loudspeaker
Energy.
Frame 1 also has the side wall 18 positioned at 15 periphery of supporting part.First magnet 21 and the second magnet 22 respectively with side wall
There is gap between 18, form the magnetic gap of magnetic circuit system.
The outer surface of first washer 31 and the second washer 32 surrounds the end face for the frame 1 to be formed not higher than side wall 18.Ability
What field technique personnel were appreciated that washer be usually be covered on it is big with magnet etc. on magnet.First washer 31 and the second washer
32 also have gap between side wall 18 respectively, also form the magnetic gap of magnetic circuit system.
When in use, the first voice coil 41 and the second voice coil 42 can be respectively from two of frame 1 for magnetic circuit system of the invention
End face, which is protruded into be formed with corresponding magnet and washer respectively in magnetic gap, to be cooperated, and is shaken respectively with the first vibrating diaphragm component 51 and second
Membrane module 52 connects, so that applying loudspeaker of the invention may be implemented two-sided sounding；Only giving the energization of single voice coil or one
It, can also be with single side sounding in the case where a damaged voice coil.
Due to being stacked for two blocks of magnet, magnetic field strength is enhanced, is enabled and is applied loudspeaker of the invention and obtain
Better acoustical behavior, significantly improve the loudness of sound, there is better supper bass effect in when low-frequency vibration, improves magnetic field
Utilization rate.Certain stereo sound effect can also be generated after the electric current to two voice coils is respectively controlled.On the other hand, originally
The structure of invention greatly improves the utilization rate of frame 1, and frame 1 can be with almost all or most quality changing for magnetic field
Kind and amendment, modified magnetic field strength is higher in 15 unit mass of supporting part, compared with the existing technology in magnetic circuit system, frame
1 weight accounting can greatly decline, and be convenient for light-weight design.
In some embodiments, the gap between side wall 18 and the first magnet 21 or/and the second magnet 22 is wide, i.e.,
The end surface shape of frame 1 is matched with the first magnet 21 or/and the second magnet 22.
In some embodiments, with reference to Fig. 1, the first magnet 21 and the second magnet 22 are symmetrical arranged, i.e. the first magnet 21 with
Although 22 magnetic pole of the second magnet is forward arranged, the size dimension of the first magnet 21 and the second magnet 22 is identical.Into
One step, the first washer 31 and the second washer 32 are also to be symmetrical arranged.Further, the size of the both ends of the surface of frame 1 is consistent, right
Claim setting.
In some embodiments, with reference to Fig. 1 and Fig. 5, the through-hole 17 that is penetrated through on supporting part 15 at least provided with one.?
When one magnet 21 and the second magnet 22 are fixedly connected by way of viscose glue with supporting part 15, when the glue-spread when side is bigger than normal,
The glue of the side can be accommodated under the extruding of the first magnet 21 or the second magnet 22 by through-hole 17, and pass to the other side,
So that glue distribution is relatively uniform, the adhesive strength of the other side is compensated.On the other hand, it is accommodated at least one through-hole 17
Colloid connects the first magnet 21 and the second magnet 22 of loading end two sides, and the first magnet 21 and the second magnet 22 is directly bonded,
It is superimposed bonding force in the effect of attracting active force, so that it can preferably be fixed on supporting part 15, keeps firm.
In some embodiments, with reference to Fig. 5, through-hole 17 can be circle.In other examples, or side
The hole of the other shapes such as shape, diamond shape, the present invention are not intended to limit this.
In some embodiments, with reference to Fig. 5, through-hole 17 is symmetrical arranged on the supporting part 15 of frame 1.It is one in through-hole 17
When a, which can be arranged in the center of supporting part 15.Further, multiple through-holes 17 can be arranged along straight line
On the center line of supporting part 15 or in matrix arrangements on supporting part 15, the application is not intended to limit this.
In some embodiments, supporting part can locally connect with side wall and be made up of integral forming process, and frame 1 is logical
Integral forming process is crossed to be made.
In some embodiments, with reference to Fig. 5 and Fig. 6, frame 1 may include the first frame 11 and the second frame 14.Second
Frame 14 includes supporting part 15.First frame 11 includes side wall 18.Second frame 14 and the first frame 11 be assembled together so that
Supporting part 15 is located at the inside of side wall 18.
In some embodiments, with reference to Fig. 5 and Fig. 6, frame 1 can also include fixed part 16.Fixed part 16 is located at side wall
18 outside.Fixed part 16 is used for and external structure cooperation fixed magnetic circuit system, such as the shell of loudspeaker etc. of the invention.Match
Conjunction mode can be not intended to limit this by the structure types such as bonding, hot melt, clamping, the application.
In some embodiments, with reference to Fig. 5 and Fig. 6, frame 1 includes the first frame 11 and the second frame 14.Second frame
14 may include multiple fixed parts 16, and multiple fixed parts 16 are symmetricly set on 15 outside of supporting part.The side wall 18 of first frame 11
Be provided on one face with one-to-one first notch 12 of fixed part 16, the first frame 11 by the first notch 12 can
Being fastened in the first frame 14 makes fixed part 16 and supporting part 15 be located at the inner side and outer side of side wall 18.Further, exist
It, can be by sticking patch by the defect of the first notch 12 after the first frame 11 is fixedly connected with the second frame 14 in some embodiments
Place is filled up；When the presence of 12 defect point of the first notch does not influence the cooperation of magnetic circuit system and voice coil, can not also fill up, ability
Field technique personnel, which can according to need, to be selected, and the application is not intended to limit this.
In some embodiments, with reference to Fig. 5 and Fig. 6, the second frame 14 further includes connecting correspondingly with fixed part 16
Portion 19.Fixed part 16 is fixedly connected by interconnecting piece 19 with supporting part 15 correspondingly, and interconnecting piece is also and at the first notch 12
Side wall be fixedly connected so that fixed part 16 and supporting part 15 are located at the inner side and outer side of side wall 18.
Further, supporting part 15, fixed part 16, interconnecting piece 19 can be integrally formed.The structure letter of the frame made
Single, compact, easy to process, the first frame 1 can use the direct punch forming of plate；Second frame 14 can use the cold sanction of plate
After sheet material, by mold around circularizing；It is fixed that molding first frame 11 and the second frame 14 are subjected to assembly.The
The fixed form of one frame 11 and the second frame 14 can be attached fixation using modes such as viscose glue, clampings, be compared to weldering
Its molding structure will not be destroyed by, which connecing, leads to that deformation occurs.Certainly, in other implementations, annular frame 1 and center basin
Frame 2 is also possible to integrally formed, and the application is not intended to limit this.
In some embodiments, magnet needs to have gaps to form magnetic gap between the side wall 18 of frame 1, with reference to figure
The size of 1 and Fig. 5, the size and magnet that can make supporting part 15 match, and between side wall 18 there is gap therefore to hold
Only part is connect with side wall 18 in load portion 15, so that being formed with engraved structure between supporting part 15 and side wall 18 preferably to mitigate basin
The weight of frame 1.On the other hand, engraved structure can preferably balance the air pressure on 21 two sides of supporting part, promote the acoustics of loudspeaker
Performance.
In some embodiments, with reference to Fig. 5 and Fig. 6, two end faces of frame 1 side wall 18 on be respectively provided with that there are two the
Two notches 13, the second notch 13 are used for the entrance of voice coil leads 43 or/and are pierced by.Further, the size of the second notch 13 and
Shape be subject to voice coil in vibration processes voice coil leads 43 not with the side wall 18 of frame 1 occur CONTACT WITH FRICTION, improve voice coil draw
The service life of line 43 prevents from rubbing；Also voice coil leads 43 are reduced to pull caused by voice coil, improve acoustical behavior.
According to another aspect of the present invention, the present invention also provides a kind of sounding devices, with reference to Fig. 1 and Fig. 2, including shell
With setting in the intracorporal above-mentioned magnetic circuit system of shell.
Further, sounding device can be capable of the device of sounding for loudspeaker etc..
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 above example 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 (10)
1. a kind of magnetic circuit system, which is characterized in that the frame of supporting part is provided with including center, the one of the supporting part
The first magnet, the first washer set gradually on face is set gradually in one side of the supporting part away from first magnet
The second magnet, the second washer, the N grade of the pole S of first magnet and second magnet is relatively；
The frame also has the side wall positioned at the supporting part periphery, first magnet and second magnet and the side
There is gap between wall, the outer surface of first washer and second washer surrounded not higher than the side wall to be formed it is described
The end face of frame.
2. magnetic circuit system according to claim 1, which is characterized in that the side wall and first magnet or/and described
Gap between second magnet is wide.
3. magnetic circuit system according to claim 1, which is characterized in that first magnet is symmetrically set with second magnet
It sets or/and first washer is symmetrical arranged with second washer.
4. magnetic circuit system according to claim 1, which is characterized in that penetrated through on the supporting part at least provided with one
Through-hole is provided with colloid at least one described through-hole, and first magnet is connected with second magnet by the colloid.
5. magnetic circuit system according to claim 1, which is characterized in that the supporting part locally connect and leads to the side wall
Integral forming process is crossed to be made.
Alternatively, the frame includes the first frame and the second frame, first frame includes the side wall, second frame
Including the supporting part, first frame and second frame are assembled together so that the supporting part is located at the side wall
Inside.
6. magnetic circuit system according to claim 5, which is characterized in that the frame further includes fixed part, the fixed part
Positioned at the outside of the side wall, the fixed part is configurable for being connected and fixed the magnetic circuit system with external structure.
7. magnetic circuit system according to claim 6, which is characterized in that the frame includes first frame and described
Two frame, second frame include multiple fixed parts, and multiple fixed parts are symmetricly set on the outside of the supporting part,
It is provided on the side wall of one end face of first frame and one-to-one first notch of the fixed part, first basin
Frame is fastened in second frame by first notch makes the fixed part and the supporting part be located at the side
The inner side and outer side of wall.
8. magnetic circuit system according to claim 7, which is characterized in that second frame further includes and the fixed part one
One corresponding interconnecting piece, the fixed part are fixedly connected by the interconnecting piece with the supporting part, the interconnecting piece also with institute
The side wall for stating the first indentation, there is fixedly connected.
9. magnetic circuit system according to claim 1, which is characterized in that two end faces of the frame are respectively provided on side wall
There are two the second notch, second notch is configurable for the entrance of voice coil leads or/and is pierced by.
10. a kind of sounding device, which is characterized in that including shell and that the intracorporal claim 1-9 of shell is arranged in is any described
Magnetic circuit system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613171.6A CN109788406B (en) | 2018-12-27 | 2018-12-27 | Magnetic circuit system and sound production device |
| PCT/CN2019/109007 WO2020134285A1 (en) | 2018-12-27 | 2019-09-29 | Magnetic circuit system and sound producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613171.6A CN109788406B (en) | 2018-12-27 | 2018-12-27 | Magnetic circuit system and sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109788406A true CN109788406A (en) | 2019-05-21 |
| CN109788406B CN109788406B (en) | 2020-09-18 |
Family
ID=66498784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811613171.6A Active CN109788406B (en) | 2018-12-27 | 2018-12-27 | Magnetic circuit system and sound production device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109788406B (en) |
| WO (1) | WO2020134285A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327999A (en) * | 2020-03-05 | 2020-06-23 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| WO2020134285A1 (en) * | 2018-12-27 | 2020-07-02 | 歌尔股份有限公司 | Magnetic circuit system and sound producing device |
| WO2020134284A1 (en) * | 2018-12-27 | 2020-07-02 | 歌尔股份有限公司 | Basket assembly and sound generation device |
| CN112261551A (en) * | 2020-09-30 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| WO2021128043A1 (en) * | 2019-12-25 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker capable of double-sided sound production |
| CN114143680A (en) * | 2020-12-24 | 2022-03-04 | 东莞顺合丰电业有限公司 | Double-sided loudspeaker |
| CN114501245A (en) * | 2021-06-02 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204046805U (en) * | 2014-08-07 | 2014-12-24 | 江西联创宏声电子有限公司 | A kind of electroacoustic transducer of tow sides sounding |
| CN206118013U (en) * | 2016-09-26 | 2017-04-19 | 常州阿木奇声学科技有限公司 | Loudspeaker |
| CN108882089A (en) * | 2018-06-29 | 2018-11-23 | 维沃移动通信有限公司 | A kind of receiver and mobile terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101187510B1 (en) * | 2011-12-14 | 2012-10-02 | 부전전자 주식회사 | High power micro-speaker |
| CN109788406B (en) * | 2018-12-27 | 2020-09-18 | 歌尔股份有限公司 | Magnetic circuit system and sound production device |
-
2018
- 2018-12-27 CN CN201811613171.6A patent/CN109788406B/en active Active
-
2019
- 2019-09-29 WO PCT/CN2019/109007 patent/WO2020134285A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204046805U (en) * | 2014-08-07 | 2014-12-24 | 江西联创宏声电子有限公司 | A kind of electroacoustic transducer of tow sides sounding |
| CN206118013U (en) * | 2016-09-26 | 2017-04-19 | 常州阿木奇声学科技有限公司 | Loudspeaker |
| CN108882089A (en) * | 2018-06-29 | 2018-11-23 | 维沃移动通信有限公司 | A kind of receiver and mobile terminal |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134285A1 (en) * | 2018-12-27 | 2020-07-02 | 歌尔股份有限公司 | Magnetic circuit system and sound producing device |
| WO2020134284A1 (en) * | 2018-12-27 | 2020-07-02 | 歌尔股份有限公司 | Basket assembly and sound generation device |
| WO2021128043A1 (en) * | 2019-12-25 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker capable of double-sided sound production |
| CN111327999A (en) * | 2020-03-05 | 2020-06-23 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN111327999B (en) * | 2020-03-05 | 2021-02-19 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN112261551A (en) * | 2020-09-30 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| CN112261551B (en) * | 2020-09-30 | 2021-06-11 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| WO2022068009A1 (en) * | 2020-09-30 | 2022-04-07 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN114143680A (en) * | 2020-12-24 | 2022-03-04 | 东莞顺合丰电业有限公司 | Double-sided loudspeaker |
| CN114501245A (en) * | 2021-06-02 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| WO2022252666A1 (en) * | 2021-06-02 | 2022-12-08 | 北京荣耀终端有限公司 | Inner core, loudspeaker module, and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020134285A1 (en) | 2020-07-02 |
| CN109788406B (en) | 2020-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109788406A (en) | Magnetic circuit system and sounding device | |
| JP5668233B1 (en) | Universal speaker | |
| WO2020135288A1 (en) | Screen vibration sound production apparatus and electronic product | |
| CN209659588U (en) | Sounding device and electronic equipment | |
| JPWO2004006620A1 (en) | Electroacoustic transducer | |
| US8160291B2 (en) | Voice coil and speaker | |
| JP4851534B2 (en) | Speaker | |
| WO2015096526A1 (en) | Suspended elastic diaphragm | |
| CN109714656A (en) | Frame component and sounding device | |
| JP6322791B2 (en) | Universal speaker | |
| KR101273734B1 (en) | Dampless speaker | |
| CN209250879U (en) | The compound electroacoustic transducer of moving-coil electrostatic | |
| JP2005260306A (en) | Dynamic microphone | |
| JPH11178085A (en) | Loudspeaker system | |
| KR101087493B1 (en) | A Hidden Magnetostrictive Speaker Embedded in Flat Panel Display | |
| JP2008167247A (en) | Voice coil motor and speaker using the same | |
| KR20220025035A (en) | Speaker unit and speaker curved diaphragm | |
| JPWO2021033226A5 (en) | ||
| CN218124921U (en) | R intra-annular oblique loudspeaker | |
| CA3150360C (en) | Speaker unit and speaker | |
| US20080101647A1 (en) | Full-range speaker device | |
| WO2024000665A1 (en) | Loudspeaker | |
| JPH11168799A (en) | Loudspeaker device | |
| KR20060102199A (en) | Speaker | |
| CN109660925A (en) | A kind of electroacoustic transducer and moving-coil electrostatic compound loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |