CN206350126U - Earphone with double preceding operatic tunes and double rear operatic tunes - Google Patents
Earphone with double preceding operatic tunes and double rear operatic tunes Download PDFInfo
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- CN206350126U CN206350126U CN201621453506.9U CN201621453506U CN206350126U CN 206350126 U CN206350126 U CN 206350126U CN 201621453506 U CN201621453506 U CN 201621453506U CN 206350126 U CN206350126 U CN 206350126U
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- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000001755 vocal effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
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Abstract
The utility model provides a kind of earphone of the operatic tunes after having double preceding operatic tunes and being double, including shell, bonnet, low frequency phonation unit and high frequency phonation unit, shell is interlocked to form the cavity with outlet sound mouth with bonnet, low frequency phonation unit is arranged in cavity after being combined with high frequency phonation unit, cavity is separated into the preceding operatic tunes and the rear operatic tunes, the operatic tunes separates cylinder after being connected between low frequency phonation unit and bonnet, the operatic tunes separates cylinder afterwards, the space that bonnet and low frequency phonation unit are surrounded is phonon chamber after first, space in the rear operatic tunes in addition to phonon chamber after first is phonon chamber after second；The preceding operatic tunes separation cylinder that length extends tremendously low frequency phonation unit from outlet sound mouth is provided with the preceding operatic tunes, the space that preceding operatic tunes separation cylinder and high frequency phonation unit are surrounded is phonon chamber before first, and the space in the preceding operatic tunes in addition to phonon chamber before first is phonon chamber before second.The earphone with double preceding operatic tunes and double rear operatic tunes provided using the utility model, can improve the tonequality of earphone.
Description
Technical Field
The utility model relates to an earphone technical field, more specifically relates to an earphone with two preceding vocal chambeies and two back vocal chambeies.
Background
Currently, earphones are commonly used for MP3 walkman, mobile phone, Personal Digital Assistant (PDA) or notebook computer, etc. for personal independent listening, so that earphones become one of the essential accessories for electronic products. Along with the continuous improvement of the requirement of people on the tone quality, the tone quality effect of the earphone is more and more emphasized by people. In the prior art, the earphone is generally only provided with a loudspeaker in a shell, and the frequency width and the tone quality of high and low frequencies cannot be considered.
To the above problem, a dual-speaker earphone including a high frequency speaker and a low frequency speaker is also appeared on the market, and since the dual-speaker earphone can simultaneously generate a high frequency sound effect and a low frequency sound effect, the dual-speaker earphone is popular with users. However, the sound of the high-frequency loudspeaker and the sound of the low-frequency loudspeaker in the existing double-loudspeaker earphone interfere with each other in the front sound cavity, so that the tone quality of the earphone is influenced, and the high-frequency sound effect and the low-frequency sound effect of the rear sound cavity cannot be independently adjusted.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the present invention provides an earphone with dual front sound cavities and dual back sound cavities to solve the problem of insufficient sound quality of the existing dual-speaker earphone.
The utility model provides an earphone with two preceding vocal chambeies and two back vocal chambeies, include: the high-frequency sounding unit and the low-frequency sounding unit are fixedly connected with the inner wall of the shell, the high-frequency sounding unit and the low-frequency sounding unit jointly divide the cavity into a front sound cavity and a rear sound cavity, a hollow rear sound cavity separation column is connected between the low-frequency sounding unit and the rear cover, the space enclosed by the rear cover and the low-frequency sounding unit is a first rear sound sub cavity, and the space except the first rear sound sub cavity in the rear sound cavity is a second rear sound sub cavity; the front sound cavity separation column body is hollow and the length of the front sound cavity separation column body extends to the low-frequency sound production unit from the sound outlet, the space surrounded by the front sound cavity separation column body and the high-frequency sound production unit is a first front sound cavity, and the space in the front sound cavity except the first front sound cavity is a second front sound cavity.
In addition, the preferable structure is that a first limit step is arranged on the inner wall of the shell, and the edge of the low-frequency sounding unit is clamped with the first limit step; and a second limit step is arranged on the front sound cavity partition plate, and the edge of the high-frequency sound generating unit is clamped with the second limit step.
In addition, the preferable structure is that the low-frequency sound production unit comprises a low-frequency magnetic circuit system, and the low-frequency magnetic circuit system comprises a first magnetic conducting yoke, a first magnet positioned at the edge of the first magnetic conducting yoke, and a first washer fixedly connected to one side, far away from the first magnetic conducting yoke, of the first magnet; wherein, one side of the horizontal fixed part of the first magnetic yoke facing the back cover is fixedly connected with a first circuit board; the first magnet is fixedly connected to the other side of the horizontal fixing part of the first magnetic yoke; the edge of the first washer is clamped with the first limiting step.
In addition, it is preferable that the first circuit board is provided with a first pad, and the housing is provided with a wire inlet hole at a position corresponding to the second rear sound cavity.
In addition, the preferred structure is that the low-frequency sound production unit further comprises a low-frequency vibration system, the low-frequency vibration system comprises a first vibrating diaphragm and a first voice coil, the first vibrating diaphragm is fixedly connected between the washer and the longitudinal fixing portion of the first magnetic yoke, and the first voice coil is fixedly connected to one side of the first vibrating diaphragm facing the horizontal fixing portion.
In addition, the preferable structure is that the high-frequency sound production unit comprises a high-frequency magnetic circuit system, the high-frequency magnetic circuit system comprises a second magnetic conducting yoke, a second magnet fixedly connected to one side of the center position of the second magnetic conducting yoke and a second washer fixedly connected to one side of the second magnet far away from the second magnetic conducting yoke, a second circuit board is fixedly connected to the other side of the center position of the second magnetic conducting yoke, and a second welding disc is arranged on the second circuit board.
In addition, the preferable structure is that the high-frequency sound generating unit further comprises a high-frequency vibration system, and the high-frequency vibration system comprises a second vibrating diaphragm and a second voice coil fixed on one side of the second vibrating diaphragm; the edge of the second diaphragm is fixedly connected with the second magnetic conduction yoke, and the second voice coil is located in a magnetic gap between the second magnetic conduction yoke and the second magnet.
In addition, the preferable structure is that at least one sound leakage hole is respectively arranged on the rear cover corresponding to the first rear sound cavity and the second rear sound cavity.
In addition, it is preferable that an ear insertion rubber cover is provided at the sound outlet.
Compared with the prior art, the utility model has the advantages as follows:
1. separate into the sound chamber after two independent first back sound sub-chambers and the second sound sub-chamber with the back sound chamber, the sound hole of leaking of the adjustment self that the sound sub-chamber all can be independent behind first back sound sub-chamber and the second to the high frequency tone quality of the first back sound sub-chamber of independent regulation and the low frequency tone quality of the sound sub-chamber behind the second, and do not influence each other.
2. Separate into two independent first preceding sound chambeies and the sound chamber before the second with preceding sound chamber, can avoid high, low frequency sound production unit's sound to be in the front the sound chamber mutual interference to promote the whole tone quality of earphone.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a perspective sectional view of an earphone having dual front and rear acoustic cavities according to an embodiment of the present invention;
fig. 2 is a front view of fig. 1.
Wherein the reference numerals include: the speaker comprises a shell 1, a first limiting step 11, a wire inlet 12, a rear cover 2, a sound leakage hole 21, a low-frequency sound generating unit 3, a first magnetic yoke 31, a first magnet 32, a first washer 33, a first diaphragm 34, a first voice coil 35, a first circuit board 36, a first bonding pad 37, a high-frequency sound generating unit 4, a second magnetic yoke 41, a second magnet 42, a second washer 43, a second diaphragm 44, a second voice coil 45, a second circuit board 46, a second bonding pad 47, a sound outlet 5, a rear sound cavity 6, a first rear sound sub-cavity 61, a second rear sound sub-cavity 62, a front sound cavity 7, a first front sound sub-cavity 71, a second front sound sub-cavity 72, a rear sound cavity separating cylinder 8, a front sound cavity cylinder separating 9, a second limiting step 91 and an in-ear rubber sleeve 10.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
Fig. 1 and fig. 2 show a three-dimensional sectional structure and a planar sectional structure of an earphone having two front sound cavities and two rear sound cavities according to an embodiment of the present invention, respectively.
As shown in fig. 1 and fig. 2 together, the embodiment of the present invention provides an earphone with two front sound cavities and two back sound cavities, including: the device comprises a shell 1, a rear cover 2, a low-frequency sound production unit 3 and a high-frequency sound production unit 4; the rear cover 2 is covered on one end part of the shell 1 and forms a cavity with the shell 1, the other end part of the shell 1 is a sound outlet 5, an ear inserting rubber sleeve 10 is sleeved on the sound outlet 5, and the sound outlet 5 is a main sound output channel of the earphone; low frequency sound producing unit 3 and high frequency sound producing unit 4 are installed respectively in the cavity, and the diameter of low frequency sound producing unit 3 is greater than the diameter of high frequency sound producing unit 4, and low frequency sound producing unit 3 combines along the diametric mirror image of shell 1 in the cavity with high frequency sound producing unit 4 to make low frequency sound producing unit 3 and high frequency sound producing unit 4 separate back sound chamber 6 and preceding sound chamber 7 with the cavity jointly, in fig. 1 and fig. 2, what have sound outlet 5 is preceding sound chamber 7.
The utility model provides a shell 1 can be cylinder, square or cuboid corresponding to the part of back sound chamber 6, and low frequency sound producing unit 3's shape and 1 looks adaptations of shell, and what shell 1 showed in figure 1 is the cylinder, and low frequency sound producing unit 3 is ring shape.
Be provided with a hollow back phonon chamber in back phonon chamber 6 and separate cylinder 8, the one end and the back of back phonon chamber separation cylinder 8 cover 2 fixed connection, the other end and low frequency sound production unit 3 fixed connection, in back phonon chamber 6, back phonon chamber separation cylinder 8 and low frequency sound production unit 3, the space that back lid 2 encloses is first back phonon chamber 61, the space that removes first back phonon chamber 61 in back phonon chamber 6 is second back phonon chamber 62, first back phonon chamber 61 is the phonon chamber of mutual independence with second back phonon chamber 62, and sound chamber 62 is located the outside of first back phonon chamber 61 behind the second. At least one sound leakage hole 21 is respectively formed in the positions, corresponding to the first rear phonon cavity 61 and the second rear phonon cavity 62, of the rear cover 2, and the sound quality of the first rear phonon cavity 61 and the second rear phonon cavity 62 is adjusted by adjusting the size and the number of the sound leakage holes 21. Since the first rear phonon cavity 61 and the second rear phonon cavity 62 are independent acoustic cavities, the tone qualities of the first rear phonon cavity 61 and the second rear phonon cavity 62 are not affected each other when being adjusted.
The utility model discloses a cylinder 8 is separated to the hollow back phonon chamber that the back phonon chamber 6 set up and becomes independent first back phonon chamber 61 and second back phonon chamber 62 with back phonon chamber 6, and phonon chamber 61 can be the independent hole 21 that leaks of self of regulation separately after first back phonon chamber 61 and the second, realizes the independent regulation of phonon chamber 62 tone quality behind first back phonon chamber 61 and the second. The rear sound cavity separation cylinder 8 may be a cylinder or a prism, depending on the actual condition of the earphone.
In a preferred embodiment of the present invention, the rear sound cavity separation cylinder 8 and the rear cover 2 are integrally formed.
Be provided with first spacing step 11 on the inner wall of shell 1, the edge and the 11 looks block of first spacing step of low frequency sound generating unit 3 to can reachd, low frequency sound generating unit 3 is fixed with first spacing step 11 along the one end of vibration direction, and low frequency sound generating unit 3 is fixed with back sound chamber separation cylinder 8 along the other end of vibration direction, can keep the stability of low frequency sound generating unit 3 in the vibration process.
Be provided with a hollow preceding sound cavity in preceding sound cavity 7 and separate cylinder 9, the one end and the mouth of speaking 5 of preceding sound cavity separation cylinder 9 flush, the other end and low frequency sound producing unit 3 fixed connection, in preceding sound cavity 7, the space that preceding sound cavity separation cylinder 9 and high frequency sound producing unit 4 enclose is first preceding sound cavity 71, the space except first preceding sound cavity 71 in preceding sound cavity 7 is sound cavity 72 before the second, sound cavity 72 is the space that low frequency sound producing unit 3 and shell 1, preceding sound cavity separation cylinder 9 three enclose before the second promptly.
Be provided with the spacing step 91 of second on preceding sound chamber partition column body 9, the edge and the spacing step 91 looks block of second of high frequency sound generating unit 4, and high frequency sound generating unit 4 is fixed with low frequency sound generating unit 3 along the other end of vibration direction with the spacing step 91 of second promptly, high frequency sound generating unit 4. Since both ends of the high-frequency sound generating unit 4 in the vibration direction are fixed, respectively, high stability can be maintained in the vibration process.
The utility model discloses a cylinder 9 is separated to the preceding sound chamber that sets up in preceding sound chamber 7, separates into independent first preceding sound chamber 71 and the sound chamber 72 before the second with preceding sound chamber, and high frequency sound generating unit 4 sets up in first preceding sound chamber 71. Since the space of the first front sound sub-cavity 71 is smaller than the space of the front sound cavity 7, the high frequency sound quality of the earphone can be improved. Because first front sound cavity 71 and second front sound cavity 72 are independent sound cavity, can also avoid the sound of high frequency sound generating unit 4 and the sound of low frequency sound generating unit 3 to interfere each other in sound cavity 7 in the front to improve the whole tone quality of earphone.
Because the low-frequency sound generating unit 3 is annular, and the high-frequency sound generating unit 4 is arranged on a round hole in the middle of the low-frequency sound generating unit 3, the first front phonon cavity 71 and the first rear phonon cavity 61 are equivalent to a front sound cavity and a rear sound cavity of the high-frequency sound generating unit 4, and both focus on the adjustment of high-frequency sound quality; the second front sound cavity 72 and the second rear sound cavity 62 are equivalent to the front sound cavity and the rear sound cavity of the low-frequency sound generating unit 3, and both focus on the adjustment of the low-frequency sound quality.
The utility model provides a low frequency sound producing unit 3 includes low frequency magnetic circuit system and low frequency vibration system, and wherein low frequency magnetic circuit system includes: the magnetic yoke comprises a first magnetic yoke 31, a first magnet 32 positioned at the edge of the first magnetic yoke 31 and a first washer 33 fixedly connected to one side of the first magnet 32 far away from the first magnetic yoke 31; wherein, the first magnetic yoke 31 comprises a horizontal fixing part (not shown) and a longitudinal fixing part (not shown), and the front sound cavity separation cylinder 9 is fixedly connected with the longitudinal fixing part of the first magnetic yoke 31; a first circuit board 36 is arranged on one side of the horizontal fixing part facing the rear cover 2, the rear sound cavity separation column 8 is supported on the first circuit board 36, a first bonding pad 37 is arranged on the first circuit board 36, a wire inlet hole 12 is arranged on the shell 1 corresponding to the second rear sound sub cavity 62, and a lead is led to the first circuit board 36 from the wire inlet hole 12; the edge of the other side of the horizontal fixing part facing the rear cover 2 is fixedly connected with one side of the first magnet 32, the other side of the first magnet 32 is fixedly connected with one side of the first washer 33, and the other side of the first washer 33 is clamped with the first limiting step 11.
It should be noted that the first magnet 32 and the first washer 33 are respectively circular rings, and the combined longitudinal fixing portions of the first magnet 32, the first washer 33 and the first magnetic yoke 31 form a magnetic gap of the low-frequency magnetic circuit system.
The low-frequency vibration system comprises a first diaphragm 34 and a first voice coil 35 fixed on one side of the first diaphragm 34, wherein the first diaphragm 34 is of a circular ring structure, the inner circle edge of the first diaphragm 34 is fixedly connected with the longitudinal fixing part of the first magnetic yoke 31, the outer circle edge of the first diaphragm 34 is fixedly connected with the first washer 33, the first voice coil 35 is fixedly connected on one side of the first diaphragm 34 facing the horizontal fixing part of the first magnetic yoke 31, namely the first voice coil 35 is located in the magnetic gap of the low-frequency magnetic circuit system, and the first voice coil 35 cuts a magnetic induction line in the magnetic gap along with the vibration of the first diaphragm 34.
The utility model provides a high frequency sound production unit 4 includes high frequency magnetic circuit and high frequency vibration system, and wherein high frequency magnetic circuit includes: the second yoke 41, the second magnet 42 fixedly connected to one side of the center position of the second yoke 41, and the second washer 43 fixedly connected to one side of the second magnet 42 far from the second yoke 41, the second magnet 42 and the second washer 43 are accommodated in the second yoke 41, the edge of the second yoke 41 is engaged with the second limit step 91, the second circuit board 46 is fixedly connected to the other side of the center position of the second yoke 41, the second circuit board 46 is provided with the second pad 47, and a magnetic gap of a high-frequency magnetic circuit system is formed between the second yoke 41 and the combined second magnet 42 and second washer 43.
The high-frequency vibration system comprises a second diaphragm 44, a second voice coil 45 fixed on one side of the second diaphragm 44 and a reinforcing part positioned at the center of the second diaphragm 44; the second diaphragm 44 includes a fixing portion (located at the outermost periphery of the second diaphragm 44), a corrugated portion of a concave/convex structure integrally disposed with the fixing portion, and a planar portion (located at the innermost portion of the second diaphragm 44) disposed inside the corrugated portion, the reinforcing portion is disposed on the planar portion of the second diaphragm 44, and is mainly used for adjusting the acoustic performance of the high-frequency sound generating unit 4, and in order to reduce the overall quality of the vibration system, a material removing portion is usually disposed at a position, corresponding to the reinforcing portion, of the planar portion of the second diaphragm 44, and the reinforcing portion covers the material taking position; the fixed part of the second diaphragm 44 is fixedly connected with the second magnetic yoke 41; the second voice coil 45 is coupled to a side of the second diaphragm 44 facing the second magnet 42, and the second voice coil 45 is located in a magnetic gap of the high-frequency magnetic circuit system, and the second voice coil 45 cuts a magnetic induction line in the magnetic gap along with the vibration of the second diaphragm 44.
The utility model discloses an among the concrete implementation, can set up the through-hole respectively on the central point of second magnetic yoke 41, second magnet 42 and second china 43 to make high frequency sound production unit 4 and first back phonon chamber 61 intercommunication, the through-hole of seting up acts as and leaks the sound hole.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An earphone having dual front and rear acoustic cavities, comprising: the low-frequency sounding device comprises a shell, a rear cover, a low-frequency sounding unit and a high-frequency sounding unit, wherein the diameter of the high-frequency sounding unit is larger than that of the low-frequency sounding unit; it is characterized in that the preparation method is characterized in that,
the high-frequency sounding unit is combined with the low-frequency sounding unit, the edge of the low-frequency sounding unit is fixedly connected with the inner wall of the shell, and the high-frequency sounding unit and the low-frequency sounding unit jointly divide the cavity into a front sound cavity and a rear sound cavity;
a hollow rear sound cavity separation column body is connected between the low-frequency sound production unit and the rear cover, a space enclosed by the rear sound cavity separation column body, the rear cover and the low-frequency sound production unit is a first rear sound sub cavity, and a space in the rear sound cavity except the first rear sound sub cavity is a second rear sound sub cavity;
the sound cavity is provided with hollow and length in the preceding sound cavity and follows the sound outlet extends to the cylinder is separated to the preceding sound cavity of low frequency sound producing unit, preceding sound cavity separate the cylinder with the space that high frequency sound producing unit encloses is first preceding sound cavity preceding sound intracavity except that the space outside first preceding sound sub-cavity is the sound sub-cavity before the second.
2. The earphone having dual front and rear acoustic cavities according to claim 1,
a first limiting step is arranged on the inner wall of the shell, and the edge of the low-frequency sounding unit is clamped with the first limiting step; and the number of the first and second groups,
and a second limit step is arranged on the front sound cavity partition plate, and the edge of the high-frequency sounding unit is clamped with the second limit step.
3. The earphone having dual front and rear acoustic cavities according to claim 2,
the low-frequency sounding unit comprises a low-frequency magnetic circuit system, and the low-frequency magnetic circuit system comprises a first magnetic conducting yoke, a first magnet positioned at the edge of the first magnetic conducting yoke and a first washer fixedly connected to one side, far away from the first magnetic conducting yoke, of the first magnet; wherein,
a first circuit board is fixedly connected to one side, facing the rear cover, of the horizontal fixing part of the first magnetic yoke;
the first magnet is fixedly connected to the other side of the horizontal fixing part of the first magnetic yoke;
the edge of the first washer is clamped with the first limiting step.
4. The earphone having dual front and rear acoustic cavities as claimed in claim 3,
and a first bonding pad is arranged on the first circuit board, and a wire inlet hole is formed in the position, corresponding to the second rear sound cavity, on the shell.
5. The earphone having dual front and rear acoustic cavities as claimed in claim 3,
the low-frequency sound production unit further comprises a low-frequency vibration system, the low-frequency vibration system comprises a first vibrating diaphragm and a first voice coil, the first vibrating diaphragm is fixedly connected between the first washer and the longitudinal fixing portion of the first guide magnetic yoke, and the first voice coil is fixedly connected to the first vibrating diaphragm facing one side of the horizontal fixing portion.
6. The earphone having dual front and rear acoustic cavities as claimed in claim 3,
the high-frequency sounding unit comprises a high-frequency magnetic circuit system, the high-frequency magnetic circuit system comprises a second magnetic conduction yoke, a second magnet fixedly connected to one side of the center of the second magnetic conduction yoke and a second washer fixedly connected to one side of the second magnet far away from the second magnetic conduction yoke, a second circuit board is fixedly connected to the other side of the center of the second magnetic conduction yoke, and a second welding disc is arranged on the second circuit board.
7. The earphone having dual front and rear acoustic cavities as claimed in claim 6,
the high-frequency sound production unit further comprises a high-frequency vibration system, and the high-frequency vibration system comprises a second vibrating diaphragm and a second voice coil fixedly connected to one side of the second vibrating diaphragm; the edge of the second diaphragm is fixedly connected with the second magnetic conduction yoke, and the second voice coil is located in a magnetic gap between the second magnetic conduction yoke and the second magnet.
8. The earphone having dual front and rear acoustic cavities according to any of claims 1-7,
and at least one sound leakage hole is respectively formed in the positions, corresponding to the first rear sound cavity and the second rear sound cavity, of the rear cover.
9. The earphone having dual front and rear acoustic cavities according to claim 8,
an ear inlet rubber sleeve is arranged on the sound outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453506.9U CN206350126U (en) | 2016-12-27 | 2016-12-27 | Earphone with double preceding operatic tunes and double rear operatic tunes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453506.9U CN206350126U (en) | 2016-12-27 | 2016-12-27 | Earphone with double preceding operatic tunes and double rear operatic tunes |
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| Publication Number | Publication Date |
|---|---|
| CN206350126U true CN206350126U (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621453506.9U Active CN206350126U (en) | 2016-12-27 | 2016-12-27 | Earphone with double preceding operatic tunes and double rear operatic tunes |
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| CN (1) | CN206350126U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108769860A (en) * | 2018-06-04 | 2018-11-06 | 芜湖明透智能装备科技有限公司 | A kind of magnetic suspension is rechargeable can lighting sound box |
| CN110381405A (en) * | 2019-07-17 | 2019-10-25 | 歌尔科技有限公司 | A kind of earplug |
| CN113242485A (en) * | 2021-04-30 | 2021-08-10 | 歌尔股份有限公司 | In-ear earphone |
| CN114257672A (en) * | 2020-09-22 | 2022-03-29 | 华为终端有限公司 | Sound production device and electronic equipment |
| CN115914913A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Sound output device |
| CN117354692A (en) * | 2023-12-05 | 2024-01-05 | 江西红声技术有限公司 | Acoustic device |
-
2016
- 2016-12-27 CN CN201621453506.9U patent/CN206350126U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108769860A (en) * | 2018-06-04 | 2018-11-06 | 芜湖明透智能装备科技有限公司 | A kind of magnetic suspension is rechargeable can lighting sound box |
| CN110381405A (en) * | 2019-07-17 | 2019-10-25 | 歌尔科技有限公司 | A kind of earplug |
| CN114257672A (en) * | 2020-09-22 | 2022-03-29 | 华为终端有限公司 | Sound production device and electronic equipment |
| CN114257672B (en) * | 2020-09-22 | 2023-07-14 | 华为终端有限公司 | Sound production device and electronic equipment |
| CN113242485A (en) * | 2021-04-30 | 2021-08-10 | 歌尔股份有限公司 | In-ear earphone |
| CN115914913A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Sound output device |
| CN117354692A (en) * | 2023-12-05 | 2024-01-05 | 江西红声技术有限公司 | Acoustic device |
| CN117354692B (en) * | 2023-12-05 | 2024-04-09 | 江西红声技术有限公司 | Acoustic device |
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