CN108462929A - Loud speaker module and electronic equipment - Google Patents
Loud speaker module and electronic equipment Download PDFInfo
- Publication number
- CN108462929A CN108462929A CN201810471605.7A CN201810471605A CN108462929A CN 108462929 A CN108462929 A CN 108462929A CN 201810471605 A CN201810471605 A CN 201810471605A CN 108462929 A CN108462929 A CN 108462929A
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- Prior art keywords
- resonant cavity
- resonant
- loud speaker
- speaker module
- cavity
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Classifications
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- 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
- 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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The present invention discloses a kind of loud speaker module and electronic equipment, the module includes module casing and loudspeaker monomer, accommodating chamber and multiple resonant cavities are provided in the module casing, the loudspeaker monomer is arranged in the accommodating chamber, and the accommodating chamber is separated into the preceding operatic tunes and the rear operatic tunes, the preceding operatic tunes is connected to by sound mouth with exterior space；At least two resonant cavity serial communications and at least two resonant cavities are arranged in parallel in multiple resonant cavities, one in the resonant cavity of the serial communication is connected to the preceding operatic tunes, the resonant cavity being arranged in parallel is mutually isolated, and is connected to respectively with the preceding operatic tunes.The present invention can improve the sounding effect of loud speaker module by the way that the resonant cavity connected and be arranged in parallel is arranged.
Description
Technical field
The present invention relates to electro-acoustic product technical fields.More particularly, to a kind of loud speaker module and electronic equipment.
Background technology
Loud speaker is the important acoustic element in electronic equipment, is a kind of energy converter electric signal being changed into acoustical signal
Part.Existing loud speaker module includes shell, and the acoustical generator monomer being arranged in shell, and acoustical generator monomer is by the appearance in shell
Chamber of receiving is separated into the preceding operatic tunes and the rear operatic tunes.The preceding operatic tunes influences the low-frequency range of musical sound little, main influence high band part.
In existing loud speaker module, for the module with side outlet sound mouth, due to going out for its preceding operatic tunes
Sound channel is longer, be easy to cause high-frequency resonant, to influence the acoustical behavior of loud speaker module, to solve the above-mentioned problems, leads to
Closed resonant cavity is often set on module casing.Resonant cavity is connected to the preceding operatic tunes, to loud speaker module FR (frequency response)
There is apparent improvement.
However, existing resonant cavity is single cavity, it is limited to the unicity of intrinsic frequency, which adjusts frequency
Limited width, cannot effectively adjust the position of frequency response curve multimodal paddy, and frequency response curve is unsmooth.
Invention content
It is an object of the present invention to provide a kind of new solutions of loud speaker module.
According to the first aspect of the invention, a kind of loud speaker module is provided, which includes module casing and raise one's voice
Device monomer, is provided with accommodating chamber and multiple resonant cavities in the module casing, and the loudspeaker monomer is arranged on the appearance
It receives intracavitary, and the accommodating chamber is separated into the preceding operatic tunes and the rear operatic tunes, the preceding operatic tunes is connected to by sound mouth with exterior space；
At least two resonant cavity serial communications and at least two resonant cavities are arranged in parallel in multiple resonant cavities, institute
One in the resonant cavity of serial communication to be stated to be connected to the preceding operatic tunes, the resonant cavity being arranged in parallel is mutually isolated, and point
It is not connected to the preceding operatic tunes.
Preferably, at least one resonant cavity is embedded in another resonant cavity.
Preferably, it may be configured as multilayer nest in the resonant cavity being embedded in another resonant cavity.
Preferably, multiple resonant cavities include the first resonant cavity and the second resonant cavity, first resonant cavity and described
The neighbour setting of second resonant cavity, the first communicating passage is provided between first resonant cavity and second resonant cavity,
Any one in first resonant cavity and second resonant cavity is provided with the second communicating passage between the preceding operatic tunes.
Preferably, multiple resonant cavities further include third resonant cavity, the third resonant cavity and first resonant cavity,
Second resonant cavity is mutually isolated, and third connecting channel is provided between the third resonant cavity and the preceding operatic tunes.
Preferably, multiple resonant cavities further include the 4th resonant cavity, and it is total that the 4th resonant cavity is embedded at the third
It shakes intracavitary.
Preferably, the module casing includes upper casing, middle shell and lower casing, and the middle shell includes side wall and by the side wall
Accommodating chamber vacancy section made of enclosing and multiple resonant cavity vacancy sections；
The upper casing and lower casing cover respectively to be closed in the upper of the accommodating chamber vacancy section and the multiple resonant cavity vacancy section
End and lower end, to be enclosed the accommodating chamber and multiple resonant cavities.
Preferably, the resonant cavity is independently arranged cavity.
Preferably, the resonant cavity is the small cavity isolated by partition board by a large cavity.
According to another aspect of the present invention, a kind of electronic equipment is provided.The electronic equipment includes provided by the invention
The loud speaker module.
Beneficial effects of the present invention are as follows：
Multiple resonant cavities are provided in the module casing of loud speaker module of the present invention, the series connection of wherein at least two resonant cavity connects
Logical and at least two resonant cavities are arranged in parallel.The resonator system of a coupling is formed in this way, which can either provide
The noise resonance band of one wideband, the noise for absorbing more wide-band, and can come by adjusting the volume of multiple resonant cavities, shape
Adjust resonance bands range, so that the controllable frequency band range of multiple resonant cavities is expanded, or by adjusting multiple resonant cavity volumes,
Shape keeps multiple formants close to each other, this makes the loss of the transmission in setting frequency range that will will produce superposition, such loud speaker mould
Group is strengthened in the effect of the absorption noise of setting frequency range.
Description of the drawings
Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the decomposition diagram of the loud speaker module of one embodiment of the present of invention.
Fig. 2 shows the sectional views of the loud speaker module of one embodiment of the present of invention.
Fig. 3 shows the structural schematic diagram of the module casing that lower casing is not arranged of one embodiment of the present of invention.
Specific implementation mode
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
Fig. 1 is the exploded view of loud speaker module according to an embodiment of the invention, and Fig. 2 is one according to the present invention
The structural schematic diagram of the module casing that lower cover and rear cover are not arranged of embodiment, Fig. 3 are according to an embodiment of the invention
The sectional view of loud speaker module.
As shown in Figs. 1-3, which includes module casing and loudspeaker monomer.Appearance is provided in module casing
It receives chamber and multiple resonant cavities, loudspeaker monomer is arranged in accommodating chamber.The operatic tunes 10 before accommodating chamber is separated by loudspeaker monomer
With the rear operatic tunes, the preceding operatic tunes 10 is connected to by sound mouth with exterior space.
At least two resonant cavity serial communications and at least two resonant cavities are arranged in parallel in multiple resonant cavities.Series connection connects
One in logical resonant cavity is connected to the preceding operatic tunes 10, and the resonant cavity being arranged in parallel is mutually isolated and connects respectively with the preceding operatic tunes 10
It is logical.Also retain at least one resonant cavity being embedded in another resonant cavity in multiple resonant cavities of the embodiment of the present invention, is embedded
Resonant cavity can also be embedded in resonant cavity again, that is to say, that resonant cavity could be provided as the structure of multilayer nest.
Loudspeaker monomer can be moving iron type loud-speaker monomer or coil-moving speaker monomer.Both monomers are ability
The common knowledge in domain, does not elaborate herein.
Resonant cavity is closed cavity.Resonant cavity serial communication refers to that multiple resonant cavities are sequentially connected to one by one, in resonant cavity
Between form the first communicating passage 23, one of resonant cavity is connected to by the second communicating passage 24 with the preceding operatic tunes 10.It is multiple
It refers to mutually isolated not unicom between multiple resonant cavities that resonant cavity, which is arranged in parallel, and each resonant cavity is respectively connected to the preceding operatic tunes 10.
The resonant cavity of nesting setting is only connected to the resonant cavity on the outside of it.
Resonant cavity can be independently arranged airtight cavity.Can also be isolated by partition board by a large cavity it is small
Cavity, this mode make the making of resonant cavity become simple, and module casing is compact-sized.
Resonant cavity shape can be, but not limited to, cuboid, sphere, cone etc., can also be those skilled in the art's root
The cavity with irregular structure designed according to the shape of equipment reserved space to be installed.
In embodiments of the present invention, multiple resonant cavities are provided in module casing.At least two in multiple resonant cavities
Resonant cavity serial communication, and one of resonant cavity is connected to the preceding operatic tunes 10.The sound incident in sounding of loudspeaker monomer 21
Pressure pushes the air movement in the first communicating passage 23, and compresses the gas in most inner side resonant cavity, at the same time, also increases
Air pressure in resonant cavity forms the resonator system of a coupling in this way.Multiple resonant cavities are cascaded, and are capable of providing one wide
The noise resonance band of frequency, can absorb the noise of more wide-band in this way.In this way, multiple resonant cavities of serial communication
The sounding effect of loud speaker module can be improved.Further include in multiple resonant cavities of the present embodiment at least two be arranged in parallel be total to
Shake chamber, and the resonant cavity being arranged in parallel can generate the formant at multiple resonant frequencies.By adjusting multiple resonant cavities
Volume, shape adjust the range of resonance bands, so that the controllable frequency band range of multiple resonant cavities is expanded；Either, pass through
Adjust multiple resonant cavity volumes, shape keeps multiple formants close to each other, this make the transmission in setting frequency range loss will produce
Raw superposition, such loud speaker module will be strengthened in the effect of the absorption noise of setting frequency range.Multiple resonance of the present embodiment
Further include at least one embedding resonant cavity being set in another outside resonant cavity in chamber, the resonant cavity in outside can be that series connection connects
Logical resonant cavity, can also be the resonant cavity being arranged in parallel, and those skilled in the art can select as needed.Inside is embedding
It covers and is connected to inside the resonant cavity of setting and the resonant cavity in outside, it is total that the resonant cavity that nesting is arranged can not only reach serial or parallel connection
It shakes the effect of chamber, and since nested setting can also reduce the volume of loud speaker module, adapts to becoming for electronics miniaturization
Gesture.
In one embodiment, as shown in Figs. 1-3, module casing includes upper casing 11, middle shell 12 and lower casing 13.Middle shell 12
Accommodating chamber vacancy section made of being enclosed including side wall and by side wall and multiple resonant cavity vacancy sections.Upper casing 11 and lower casing 13 are distinguished
Lid is closed in accommodating chamber vacancy section and the top and bottom of resonant cavity vacancy section, to be enclosed accommodating chamber and multiple resonance
Chamber.
The connection being provided on side wall for being connected between resonant cavity and the preceding operatic tunes and resonant cavity and resonant cavity is logical
Road.
It should be noted that being oriented parallel to the direction of vibration of the vibrating diaphragm of loudspeaker monomer 21 above and below.Loudspeaker monomer will
Accommodating chamber is divided into the preceding operatic tunes 10 and the rear operatic tunes.
For example, upper casing 11 and lower casing 13 are in flat structure.Lower casing 13 is made by metal material, to reduce module shell
The thickness of body.Also, the heat dissipation performance of metal material is good.Magnetic conductive board 22 is embedded on lower casing 13.21 quilt of loudspeaker monomer
It is fixed on magnetic conductive board 24, wherein the magnetic circuit system of loudspeaker monomer 21 is close to magnetic conductive board 22.
In this way, the making of module casing becomes easy.It is noted for example, upper casing 11, middle shell 12 are used by TPU materials
Molding mode is moulded to be made.Lower casing 13 is made by sheet metal by stamping forming mode.
In addition, middle shell 12 is the structure of hollow out.In integrated injection molding, mold need not use sliding block, to reduce
The injection molding difficulty of middle shell 12.
In addition, the installation of loudspeaker monomer 21 becomes easy.It is engraved for example, loudspeaker monomer 21 is directly mounted to accommodating chamber
In dead zone.The vibrating diaphragm of loudspeaker monomer 21 is opposite with upper casing 11.Space between vibrating diaphragm and upper casing 11 be the preceding operatic tunes 10 at least
A part.The magnetic circuit system of loudspeaker monomer 21 is bonded and fixed on magnetic conductive board 22.
Optionally, it is linked together using ultrasonic welding between upper casing 11 and middle shell 12.Ultrasonic welding has speed of welding
Soon, the characteristics of being connected firmly.For example, upper casing 11 and middle shell 12 are TPU materials.Upper casing 11 is welded to by middle shell using ultrasonic welding
12 upper end.
Optionally, the rear operatic tunes is located at the side of the preceding operatic tunes 10.The height of module casing can be reduced in this way.Art technology
Personnel are it should be understood that side refers to along the side of the extended surface of the preceding operatic tunes.
In one embodiment of the present of invention as shown in figures 1 and 3, multiple resonant cavities of loud speaker module include first total
Shake chamber 14, the second resonant cavity 15, third resonant cavity 16 and the 4th resonant cavity 17.Near first resonant cavity 14 and the second resonant cavity 15
Setting, is provided with the first communicating passage 23, the first resonant cavity 14 passes through second between the first resonant cavity 14 and the second resonant cavity 15
Communicating passage 24 is connected to the preceding operatic tunes 10, i.e. 15 serial communication of the first resonant cavity 14 and the second resonant cavity.Third resonant cavity 16 divides
It is not isolated with the first resonant cavity 14 and the second resonant cavity 15, and is connected to the preceding operatic tunes 10 by third connecting channel 25, is i.e. third
Resonant cavity 16 is arranged in parallel with the first resonant cavity 14, the second resonant cavity 15.4th resonant cavity 17 is embedding to be set on third resonant cavity
In 16, the 4th resonant cavity 17 is connected to the inside of third resonant cavity 16.
When loud speaker module works, the incident acoustic pressure of loudspeaker monomer 21 pushes the air fortune in the second communicating passage 24
It is dynamic, and at the same time the gas compressed in the first resonant cavity 14 also increases the second resonant cavity 15 by the first communicating passage 23
Interior air pressure.Meanwhile the acoustic pressure of 21 incidence of loudspeaker monomer pushes the air movement in third connecting logical all 25, and compress third
At the same time gas in resonant cavity 16 also adds the air pressure in the 4th resonant cavity 17.The resonance of a coupling is formed in this way
System, single resonant cavity are only capable of forming a resonance peak, and four resonant cavities will form resonance peak in four frequencies.The present invention's
Resonator system can not only provide the noise resonance band of a wideband, can absorb the noise of more wide-band, and by adjusting the
One resonant cavity 14, the second resonant cavity 15, the volume of third resonant cavity 16 and the 4th resonant cavity 17, shape adjust resonance bands
Range can be such that the controllable frequency band range of four resonant cavities expands；Either, it resonates by adjusting the first resonant cavity 14, second
Chamber 15, the volume of third resonant cavity 16 and the 4th resonant cavity 17, shape keep four formants close to each other, this makes setting frequency range
On transmission loss will will produce superposition, such loud speaker module is strengthened in the effect of the absorption noise of setting frequency range.This
Outside, due to the 17 embedding inside for being set on third resonant cavity 16 of the 4th resonant cavity, the volume of loud speaker module can be effectively reduced, it is suitable
The development trend that electronic equipment is lightening, minimizes is answered.
The quantity of resonance peak is corresponding with the quantity of resonant cavity, and the number of resonant cavity can be arranged according to the bandwidth range of noise
Amount, to absorb the noise of more wide-band；Or the transmission loss in setting frequency range is superimposed.
According to another embodiment of the invention, a kind of electronic equipment is provided.Electronic equipment can be, but not limited to,
Mobile phone, tablet computer, smartwatch, game machine, laptop, intercom, earphone etc..The electronic equipment is carried including the present invention
The loud speaker module of confession.The electronic equipment has noise small, the good feature of sound effect.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical solution is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of loud speaker module, which is characterized in that including module casing and loudspeaker monomer, be arranged in the module casing
There are accommodating chamber and multiple resonant cavities, the loudspeaker monomer to be arranged in the accommodating chamber, and the accommodating chamber is separated into
The preceding operatic tunes and the rear operatic tunes, the preceding operatic tunes are connected to by sound mouth with exterior space；
At least two resonant cavity serial communications and at least two resonant cavities are arranged in parallel in multiple resonant cavities, the string
Join connection resonant cavity in one be connected to the preceding operatic tunes, the resonant cavity being arranged in parallel is mutually isolated, and respectively with
The preceding operatic tunes connection.
2. loud speaker module according to claim 1, which is characterized in that at least one resonant cavity is embedded at another institute
It states in resonant cavity.
3. loud speaker module according to claim 2, which is characterized in that the resonant cavity being embedded in another resonant cavity
It inside may be configured as multilayer nest.
4. loud speaker module according to claim 2, which is characterized in that multiple resonant cavities include the first resonant cavity and
The neighbour setting of second resonant cavity, first resonant cavity and second resonant cavity, in first resonant cavity and described second
The first communicating passage is provided between resonant cavity, any one in first resonant cavity and second resonant cavity and institute
Before stating the second communicating passage is provided between the operatic tunes.
5. loud speaker module according to claim 4, which is characterized in that multiple resonant cavities further include third resonance
Chamber, the third resonant cavity and first resonant cavity, the second resonant cavity are mutually isolated, the third resonant cavity and the preceding sound
Third connecting channel is provided between chamber.
6. loud speaker module according to claim 5, which is characterized in that multiple resonant cavities further include the 4th resonance
Chamber, the 4th resonant cavity are embedded in the third resonant cavity.
7. loud speaker module according to claim 1, which is characterized in that the module casing include upper casing, middle shell and under
Shell, accommodating chamber vacancy section and multiple resonant cavity vacancy sections made of the middle shell includes side wall and enclosed by the side wall；
The upper casing and lower casing cover respectively conjunction in the upper end of the accommodating chamber vacancy section and the multiple resonant cavity vacancy section and
Lower end, to be enclosed the accommodating chamber and multiple resonant cavities.
8. loud speaker module according to claim 1, which is characterized in that the resonant cavity is independently arranged cavity.
9. loud speaker module according to claim 1, which is characterized in that the resonant cavity be by a large cavity by every
The small cavity that plate isolates.
10. a kind of electronic equipment, which is characterized in that include the loud speaker module as described in any one in claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471605.7A CN108462929B (en) | 2018-05-17 | 2018-05-17 | Speaker module and electronic equipment |
| PCT/CN2018/122026 WO2019218667A1 (en) | 2018-05-17 | 2018-12-19 | Loudspeaker module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471605.7A CN108462929B (en) | 2018-05-17 | 2018-05-17 | Speaker module and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108462929A true CN108462929A (en) | 2018-08-28 |
| CN108462929B CN108462929B (en) | 2020-10-20 |
Family
ID=63215427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810471605.7A Active CN108462929B (en) | 2018-05-17 | 2018-05-17 | Speaker module and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108462929B (en) |
| WO (1) | WO2019218667A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874067A (en) * | 2018-12-30 | 2019-06-11 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN109936791A (en) * | 2019-02-15 | 2019-06-25 | 安克创新科技股份有限公司 | Earphone |
| WO2019218667A1 (en) * | 2018-05-17 | 2019-11-21 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
| CN110996236A (en) * | 2019-12-30 | 2020-04-10 | 歌尔科技有限公司 | Speaker module and electronic equipment |
| WO2020125633A1 (en) * | 2018-12-17 | 2020-06-25 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| WO2020125619A1 (en) * | 2018-12-17 | 2020-06-25 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| WO2020258787A1 (en) * | 2019-06-27 | 2020-12-30 | 歌尔股份有限公司 | Acoustic apparatus and electronic device |
| CN113438573A (en) * | 2021-07-19 | 2021-09-24 | 歌尔科技有限公司 | Loudspeaker and sound production device |
| CN114745631A (en) * | 2022-03-31 | 2022-07-12 | 歌尔股份有限公司 | Sounder module and intelligent head-mounted equipment |
| CN114979336A (en) * | 2021-02-23 | 2022-08-30 | 北京小米移动软件有限公司 | A sound-emitting device and electronic equipment |
| CN115515059A (en) * | 2021-06-22 | 2022-12-23 | 海能达通信股份有限公司 | Speaker module and electronic equipment |
| CN115643333A (en) * | 2021-07-19 | 2023-01-24 | 北京小米移动软件有限公司 | Loudspeaker assembly and mobile terminal |
| CN116017240A (en) * | 2021-10-22 | 2023-04-25 | 深圳市韶音科技有限公司 | A sound leakage reduction device and an acoustic output device |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218667A1 (en) * | 2018-05-17 | 2019-11-21 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
| US11962969B2 (en) | 2018-12-17 | 2024-04-16 | Goertek Inc. | Acoustic device and electronic apparatus |
| WO2020125633A1 (en) * | 2018-12-17 | 2020-06-25 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| WO2020125619A1 (en) * | 2018-12-17 | 2020-06-25 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN109874067A (en) * | 2018-12-30 | 2019-06-11 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| US11109159B2 (en) | 2018-12-30 | 2021-08-31 | AAC Technologies Pte. Ltd. | Speaker box |
| WO2020140540A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Speaker box |
| CN109936791B (en) * | 2019-02-15 | 2021-07-27 | 安克创新科技股份有限公司 | Earphone set |
| CN109936791A (en) * | 2019-02-15 | 2019-06-25 | 安克创新科技股份有限公司 | Earphone |
| WO2020258787A1 (en) * | 2019-06-27 | 2020-12-30 | 歌尔股份有限公司 | Acoustic apparatus and electronic device |
| CN110996236A (en) * | 2019-12-30 | 2020-04-10 | 歌尔科技有限公司 | Speaker module and electronic equipment |
| CN114979336A (en) * | 2021-02-23 | 2022-08-30 | 北京小米移动软件有限公司 | A sound-emitting device and electronic equipment |
| CN115515059A (en) * | 2021-06-22 | 2022-12-23 | 海能达通信股份有限公司 | Speaker module and electronic equipment |
| CN113438573A (en) * | 2021-07-19 | 2021-09-24 | 歌尔科技有限公司 | Loudspeaker and sound production device |
| CN113438573B (en) * | 2021-07-19 | 2022-11-01 | 歌尔科技有限公司 | Loudspeaker and sound production device |
| CN115643333A (en) * | 2021-07-19 | 2023-01-24 | 北京小米移动软件有限公司 | Loudspeaker assembly and mobile terminal |
| CN116017240A (en) * | 2021-10-22 | 2023-04-25 | 深圳市韶音科技有限公司 | A sound leakage reduction device and an acoustic output device |
| CN114745631A (en) * | 2022-03-31 | 2022-07-12 | 歌尔股份有限公司 | Sounder module and intelligent head-mounted equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019218667A1 (en) | 2019-11-21 |
| CN108462929B (en) | 2020-10-20 |
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