CN116634327B - Earphone loudspeaker that can effectively fall noise - Google Patents
Earphone loudspeaker that can effectively fall noise Download PDFInfo
- Publication number
- CN116634327B CN116634327B CN202310915741.1A CN202310915741A CN116634327B CN 116634327 B CN116634327 B CN 116634327B CN 202310915741 A CN202310915741 A CN 202310915741A CN 116634327 B CN116634327 B CN 116634327B
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- earphone
- damping
- pipe
- noise
- cavity
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Links
- 230000030279 gene silencing Effects 0.000 claims abstract description 12
- 230000001603 reducing effect Effects 0.000 claims abstract description 11
- 238000013016 damping Methods 0.000 claims description 83
- 239000012528 membrane Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 210000005069 ears Anatomy 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000002939 cerumen Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 230000001743 silencing effect Effects 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses an earphone horn capable of effectively reducing noise, which belongs to the technical field of earphones and comprises an earphone shell and horns arranged in the earphone shell, wherein an acoustic duct is arranged on one side of the earphone shell, an ear sleeve is sleeved on the outer side of the acoustic duct, an annular noise removing pipe is arranged between the ear sleeve and the acoustic duct, the noise removing pipe is sleeved on the outer side of the acoustic duct, the noise removing pipes are uniformly arranged at intervals along the axial direction of the acoustic duct, and the ear sleeve and the acoustic duct are contacted by the noise removing pipe; the outer wall of the noise removal pipe is provided with a sound guide hole, and a silencing part is arranged in the sound guide hole. The earphone loudspeaker can effectively block the vibration noise of the earphone loudspeaker and the friction noise of the earphone and the ears of a user, and improves the experience of the earphone loudspeaker.
Description
Technical Field
The invention belongs to the technical field of headphones, and particularly relates to a headphone loudspeaker capable of effectively reducing noise.
Background
With the continuous improvement of the living demands of people, consumers have higher and higher demands on headphones, besides stable communication quality, the headphones can isolate unwanted noise to perform normal communication in noisy or even high-noise environments, and therefore new technical products of noise reduction headphones are generated. In order to reduce the introduction of external noise, the existing earplug-type earphone is usually provided with an earmuff, and although the sealed earmuff can shield a part of external noise, the vibration noise of the earphone loudspeaker and the friction noise of the earphone and the ears of a user can not be effectively blocked, so that a certain trouble can be brought to the user.
Disclosure of Invention
Accordingly, the present invention is directed to an earphone speaker capable of effectively reducing noise, which can effectively block vibration noise of the earphone speaker and friction noise between the earphone and the ear of a user, and improve the experience of the earphone speaker.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention discloses an earphone loudspeaker capable of effectively reducing noise, which comprises an earphone shell and a loudspeaker arranged in the earphone shell, wherein one side of the earphone shell is provided with a sound guide pipe, the outer side of the sound guide pipe is sleeved with an earmuff, an annular noise removing pipe is arranged between the earmuff and the sound guide pipe, the noise removing pipe is sleeved on the outer side of the sound guide pipe, the noise removing pipes are uniformly arranged at intervals along the axial direction of the sound guide pipe, and the earmuff and the sound guide pipe are connected through the noise removing pipe; the outer wall of the noise removal pipe is provided with a sound guide hole, and a silencing part is arranged in the sound guide hole.
Further, the bottom of the sound guide hole is sealed by an annular seat body, a central damping cavity positioned in the center and an extrusion buffer cavity positioned on the outer circumference are formed between the annular seat body and the inner wall of the noise removal pipe in a matched mode, elastic particles are filled in the extrusion buffer cavity, and the annular seat body is arranged along the circumferential direction of the noise removal pipe; the silencing component comprises a central column, a first elastic resetting device, a sliding plate and a limiting plate, wherein the sliding plate and the limiting plate are coaxially connected with the central column, the inner end of the central column is fixedly connected with the annular seat body, the sliding plate is sleeved on the outer side of the central column in a sliding mode, and two adjacent sliding plates are connected through the first elastic resetting device; the limiting plate is fixedly arranged at the outer end of the center column, the diameter of the limiting plate is adapted to the straight inner diameter of the sound guide hole, and a plurality of silencing holes with diameters smaller than the particle diameter are formed in the limiting plate.
Further, the damping liquid is filled in the central damping cavity, an inner rod is slidably matched with the inner end of the central column after penetrating out of the annular seat body, a damping plate is fixed at the inner end of the inner rod, the damping plate is positioned in the central damping cavity, damping holes are formed in the damping plate, and the damping plate is connected with the annular seat body through a second elastic resetting device.
Further, a top damping cavity is formed in the upper portion of the inner side of the earphone shell, a vibrating diaphragm is arranged in the earphone shell opposite to the loudspeaker, a damping piece is arranged on the back side of the vibrating diaphragm, the damping piece is in an inverted L shape, and the horizontal end of the damping piece extends into the top damping cavity.
Further, an elastic membrane is fixed on the upper portion of the inner side of the earphone shell, the elastic membrane and the upper portion of the inner side of the earphone shell are separated from each other to form a top damping cavity, the top damping cavity is connected with a center damping cavity through a pipeline, and when the earphone is in a non-wearing state, damping liquid in the top damping cavity can be compressed into the center damping cavity under the pressure of the elastic membrane.
Further, the outside of earphone casing is provided with and is used for spacing seat of pipeline, spacing seat include the base, with base complex briquetting, be used for the retaining member of briquetting and base connection, the pipeline is spacing in the clearance between briquetting and base.
Further, a plurality of through holes are formed in the position, corresponding to the top damping cavity, of the earphone shell, and the inner sides of the through holes are sealed through sealing films.
Further, the outside of stereo set pipe has been seted up and is used for the spacing annular of noise removal pipe, the fretwork hole with the inboard intercommunication of stereo set pipe is seted up to the bottom of annular, fretwork hole annular equipartition is in the bottom of annular.
Further, the outer end of the sound guide tube is provided with a dustproof film.
The invention has the beneficial effects that:
according to the earphone loudspeaker capable of effectively reducing noise, the annular noise removing pipe is arranged between the earmuff and the sound guide pipe, when vibration noise carried by the loudspeaker or friction noise between the earphone and ears of a user is transmitted into the ears of the user through the earphone shell and the earmuff, the noise can be guided into the sound guide hole, and then noise reduction treatment is carried out through the noise reduction part in the sound guide hole, so that the effect of reducing noise can be further achieved.
According to the earphone loudspeaker, the earphone shell and the loudspeaker shell are integrally formed, so that the problem of vibration overflow caused by a gap between the loudspeaker shell and the earphone shell is avoided, and the effect of blocking sound can be greatly achieved.
According to the earphone loudspeaker, the plurality of groups of noise removing pipes are arranged along the axial direction of the sound guide pipe, so that the effect of multi-layer noise reduction can be achieved. The silencing and noise reducing effects are better. The annular noise removing pipe is arranged, so that the noise can be transmitted in an omnibearing way, the noise removing pipe can be used for positioning the earmuff, and the earmuff is prevented from falling off.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of a headset speaker of the present invention;
FIG. 2 is a schematic diagram of an acoustic duct according to the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic diagram of the structure of the top damper chamber;
FIG. 5 is a schematic view of a damping fin;
fig. 6 is a schematic structural view of the silencer component.
The figures are marked as follows: earphone shell 1, loudspeaker 2, stereo set pipe 3, ear shell 4, remove noise pipe 5, leading sound hole 6, annular pedestal 7, central damping chamber 8, extrusion cushion chamber 9, elastic particle 10, center post 11, first elastic resetting means 12, sliding plate 13, limiting plate 14, amortization hole 15, interior pole 16, damping plate 17, damping hole 18, second elastic resetting means 19, top damping chamber 20, vibrating diaphragm 21, damping fin 22, elastic membrane 23, pipeline 24, spacing seat 25, base 26, briquetting 27, retaining member 28, through-hole 29, sealing membrane 30, annular groove 31, fretwork hole 32, dustproof membrane 33, loudspeaker shell 34.
Detailed Description
As shown in fig. 1 to 6, the earphone speaker 2 capable of effectively reducing noise of the present invention includes an earphone housing 1, and a speaker 2 disposed in the earphone housing 1, where the earphone housing 1 adopts a conventional earplug structure, and is divided into an upper cover and a lower cover, and the upper cover and the lower cover are covered so as to facilitate installation. One side of the earphone shell 1 is provided with an acoustic conduit 3, the outer side of the acoustic conduit 3 is sleeved with an earcap 4, and the earcap 4 is made of latex materials, so that the earphone is conveniently used for positioning in the human ear. An annular denoising tube 5 is arranged between the earmuff 4 and the acoustic duct 3, the denoising tube 5 is round or oval, the plane of the denoising tube 5 is vertical to the axis of the acoustic duct 3, the denoising tube 5 is sleeved outside the acoustic duct 3, 2 groups of denoising tubes 5 are uniformly arranged at intervals along the axial direction of the acoustic duct 3, and the earmuff 4 is contacted with the acoustic duct 3 through the denoising tube 5 so as to eliminate sound through the denoising tube 5; the outer wall of the noise removing pipe 5 is provided with sound guide holes 6, the sound guide holes 6 are uniformly distributed on the outer side surface of the noise removing pipe 5, and a silencing part is arranged in the sound guide holes 6 so as to achieve the purpose of silencing.
In this embodiment, the bottom of the sound guiding hole 6 is closed by the annular seat 7, the cross section of the annular seat 7 is concave, a central damping cavity 8 located in the center is formed between the annular seat 7 and the inner wall of the noise removing tube 5 in a matched manner, and 4 extrusion buffer cavities 9 located on the outer circumference, namely, extrusion buffer cavities 9 are formed between the inner side of the annular seat 7 and the inner wall of the noise removing tube 5, and the outer sides of the 4 annular seats 7 and the inner side of the inner wall of the noise removing tube 5 form a central damping cavity 8. Each extrusion buffer cavity 9 is filled with micro elastic particles 10 made of latex materials with diameters of 0.1-0.5 mm, the annular seat body 7 is arranged along the circumference of the denoising tube 5, the manufacture and the forming are convenient, and the annular seat body 7 is annularly arranged on the inner wall of the denoising tube 5.
Specifically, the silencing component comprises a central column 11, a first elastic resetting device 12, a sliding plate 13 and a limiting plate 14 which are coaxially connected with the central column 11, wherein the inner end of the central column 11 is fixedly connected with the annular seat body 7, the sliding plate 13 is sleeved on the outer side of the central column 11 in a sliding manner, and two adjacent sliding plates 13 are connected through the first elastic resetting device 12; when sound is transmitted into the sound guide hole 6, vibration can be transmitted to the sliding plate 13, the sliding plate 13 vibrates up and down to slide along the center column 11, the sliding plate 13 extrudes the micro elastic particles 10 and consumes energy through extrusion deformation or friction of the micro elastic particles 10, and the silencing effect is achieved. The limiting plate 14 is fixedly arranged at the outer end of the central column 11 and used for limiting the miniature elastic particles 10 to prevent the miniature elastic particles from overflowing, the diameter of the limiting plate 14 is adapted to the straight inner diameter of the sound guide hole 6, and a plurality of silencing holes 15 with diameters smaller than the particle diameter are formed in the limiting plate 14 so as to facilitate sound introduction.
In this embodiment, the damping liquid is filled in the central damping cavity 8, the inner end of the central column 11 penetrates out of the annular seat 7 and is slidably matched with an inner rod 16, a damping plate 17 is fixed at the inner end of the inner rod 16, the damping plate 17 is located in the central damping cavity 8, a damping hole 18 is formed in the damping plate 17, and the damping plate 17 is connected with the annular seat 7 through a second elastic reset device 19. When sound is transmitted to the inner rod 16, the inner rod 16 drives the damping plate 17 to vibrate, the damping liquid is stirred when the damping plate 17 vibrates, energy is consumed through the damping action of the damping liquid, and noise reduction can be further performed.
In this embodiment, a top damping cavity 20 is formed at the upper inner side of the earphone housing 1, a vibrating diaphragm 21 is disposed in the earphone housing 1 opposite to the speaker 2, the vibrating diaphragm 21 is used for sensing noise at the upper inner side of the earphone housing 1, a damping sheet 22 is disposed at the back side of the vibrating diaphragm 21, the damping sheet 22 is in an inverted L shape, and the horizontal end of the damping sheet 22 extends into the top damping cavity 20 to reduce noise.
In this embodiment, the elastic membrane 23 is fixed on the upper portion of the inner side of the earphone housing 1, the elastic membrane 23 and the upper portion of the inner side of the earphone housing 1 are separated from each other to form a sealed top damping cavity 20, the top damping cavity 20 is connected with the central damping cavity 8 through a pipeline 24, when the earphone is in a non-wearing state, damping liquid in the top damping cavity 20 can be compressed into the central damping cavity 8 under the pressure of the elastic membrane 23, so that the damping liquid is prevented from being retained in the top damping cavity 20 when the earphone is in the non-wearing state, the sound is easier to expand, and the multifunctional usability of the earphone is improved. In the wearing state, on the contrary, the human ear extrudes the damping liquid in the central damping cavity 8 through the earmuff 4 to enable the damping liquid to enter the top damping cavity 20, so that the damping effect can be fully exerted, and the full noise reduction effect is achieved.
In this embodiment, the outside of earphone casing 1 is provided with the spacing seat 25 that is used for pipeline 24 spacing, and spacing seat 25 includes base 26, with base 26 complex briquetting 27, is used for the retaining member 28 of briquetting 27 and base 26 connection, and pipeline 24 is spacing in the clearance between briquetting 27 and the base 26, plays the effect of location, prevents that it from rubbing the human ear.
In this embodiment, a plurality of through holes 29 are formed in the position of the earphone housing 1 corresponding to the top damping chamber 20, and the inner sides of the through holes 29 are closed by a sealing film 30. The outside of stereo set pipe 3 has been seted up and has been used for the spacing annular 31 of denoising pipe 5, and the fretwork hole 32 with the inboard intercommunication of stereo set pipe 3 is seted up to the bottom of annular 31, and fretwork hole 32 annular equipartition is in the bottom of annular 31, can let the noise on the stereo set pipe 3 collect through denoising pipe 5 more easily.
In the present embodiment, the outer end of the sound tube 3 is provided with a dust-proof film 33 for preventing the ingress of human cerumen.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides an earphone loudspeaker that can effectively fall noise, includes earphone casing, the loudspeaker of setting in the earphone casing, its characterized in that, one side of earphone casing is provided with the stereo set pipe, the outside cover of stereo set pipe is equipped with the earmuff, be provided with annular denoising pipe between earmuff and the stereo set pipe, the denoising pipe cover is established the outside of stereo set pipe, the even interval arrangement of axial along the stereo set pipe of denoising pipe, pass through between earmuff and the stereo set pipe the denoising pipe is contacted; the outer wall of the noise removal pipe is provided with a sound guide hole, and a silencing part is arranged in the sound guide hole; the bottom of the sound guide hole is sealed by an annular seat body, a central damping cavity positioned in the center and an extrusion buffer cavity positioned on the outer circumference are formed between the annular seat body and the inner wall of the noise removal pipe in a matched mode, elastic particles are filled in the extrusion buffer cavity, and the annular seat body is circumferentially arranged along the inner wall of the noise removal pipe; the silencing component comprises a central column, a first elastic resetting device, a sliding plate and a limiting plate, wherein the sliding plate and the limiting plate are coaxially connected with the central column, the inner end of the central column is fixedly connected with the annular seat body, the sliding plate is sleeved on the outer side of the central column in a sliding mode, and two adjacent sliding plates are connected through the first elastic resetting device; the limiting plate is fixedly arranged at the outer end of the central column, the diameter of the limiting plate is adapted to the straight inner diameter of the sound guide hole, and a plurality of silencing holes with diameters smaller than the particle diameter are formed in the limiting plate; the damping device comprises a central damping cavity, a central column, an annular seat body, a damping plate, a second elastic resetting device, a damping hole, a first elastic resetting device, a second elastic resetting device, a damping plate, a damping liquid and a damping plate, wherein the damping liquid is filled in the central damping cavity; a top damping cavity is formed in the upper part of the inner side of the earphone shell, a vibrating diaphragm is arranged in the earphone shell opposite to the loudspeaker, a damping piece is arranged on the back side of the vibrating diaphragm, the damping piece is in an inverted L shape, and the horizontal end of the damping piece extends into the top damping cavity; the upper part of the inner side of the earphone shell is fixedly provided with an elastic membrane, the elastic membrane and the upper part of the inner side of the earphone shell are separated from each other to form the top damping cavity, the top damping cavity is connected with the central damping cavity through a pipeline, and when the earphone is in a non-wearing state, damping liquid in the top damping cavity can be compressed into the central damping cavity under the self pressure of the elastic membrane.
2. The earphone speaker capable of effectively reducing noise according to claim 1, wherein a limiting seat for limiting the pipeline is arranged on the outer side of the earphone shell, the limiting seat comprises a base, a pressing block matched with the base, and a locking piece for connecting the pressing block with the base, and the pipeline is limited in a gap between the pressing block and the base.
3. The earphone speaker capable of effectively reducing noise according to claim 1, wherein a plurality of through holes are formed in the earphone housing at positions corresponding to the top damping cavity, and the inner sides of the through holes are sealed by sealing films.
4. The earphone speaker capable of effectively reducing noise according to any one of claims 1-3, wherein an annular groove for limiting the noise removing pipe is formed in the outer side of the sound guide pipe, hollowed holes communicated with the inner side of the sound guide pipe are formed in the bottom of the annular groove, and the hollowed holes are uniformly distributed in the bottom of the annular groove in an annular mode.
5. A headset speaker for efficient noise reduction according to any one of claims 1-3, wherein the outer end of the sound tube is provided with a dust-proof membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310915741.1A CN116634327B (en) | 2023-07-25 | 2023-07-25 | Earphone loudspeaker that can effectively fall noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310915741.1A CN116634327B (en) | 2023-07-25 | 2023-07-25 | Earphone loudspeaker that can effectively fall noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116634327A CN116634327A (en) | 2023-08-22 |
| CN116634327B true CN116634327B (en) | 2023-10-17 |
Family
ID=87613884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310915741.1A Active CN116634327B (en) | 2023-07-25 | 2023-07-25 | Earphone loudspeaker that can effectively fall noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116634327B (en) |
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| CN207099299U (en) * | 2017-07-25 | 2018-03-13 | 富士高实业有限公司 | A kind of new ear muff |
| CN209046847U (en) * | 2018-12-29 | 2019-06-28 | 始兴县众鑫骏电子科技有限公司 | A kind of In-Ear automatic noise reduction bluetooth headset |
| CN110611855A (en) * | 2019-08-09 | 2019-12-24 | 深圳市静音科技有限公司 | Wind noise resistant active noise reduction earphone |
| JP2020195072A (en) * | 2019-05-29 | 2020-12-03 | 東京音響株式会社 | Double-sided audition earphone |
| CN212183726U (en) * | 2020-07-08 | 2020-12-18 | 深圳市佳骏兴科技有限公司 | Earplug and earphone |
| CN112312296A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | ANC earphone acoustic test system |
| CN113613114A (en) * | 2020-05-26 | 2021-11-05 | 深圳市冠旭电子股份有限公司 | Leading note pipe and bluetooth headset |
| CN116389966A (en) * | 2023-05-24 | 2023-07-04 | 成都弱水科技有限公司 | Bluetooth earphone |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11012770B2 (en) * | 2019-03-25 | 2021-05-18 | Apple Inc. | Eartips for in-ear listening devices |
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2023
- 2023-07-25 CN CN202310915741.1A patent/CN116634327B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207099299U (en) * | 2017-07-25 | 2018-03-13 | 富士高实业有限公司 | A kind of new ear muff |
| CN209046847U (en) * | 2018-12-29 | 2019-06-28 | 始兴县众鑫骏电子科技有限公司 | A kind of In-Ear automatic noise reduction bluetooth headset |
| JP2020195072A (en) * | 2019-05-29 | 2020-12-03 | 東京音響株式会社 | Double-sided audition earphone |
| CN110611855A (en) * | 2019-08-09 | 2019-12-24 | 深圳市静音科技有限公司 | Wind noise resistant active noise reduction earphone |
| CN113613114A (en) * | 2020-05-26 | 2021-11-05 | 深圳市冠旭电子股份有限公司 | Leading note pipe and bluetooth headset |
| CN212183726U (en) * | 2020-07-08 | 2020-12-18 | 深圳市佳骏兴科技有限公司 | Earplug and earphone |
| CN112312296A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | ANC earphone acoustic test system |
| CN116389966A (en) * | 2023-05-24 | 2023-07-04 | 成都弱水科技有限公司 | Bluetooth earphone |
Also Published As
| Publication number | Publication date |
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| CN116634327A (en) | 2023-08-22 |
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Inventor after: Cheng Kaike Inventor after: Hu Xiaojian Inventor after: Xu Huaidang Inventor after: Wei Chaofang Inventor before: Cheng Kaike Inventor before: Hu Xiaojian Inventor before: Hu Huaidang Inventor before: Wei Chaofang |
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