CN202663529U - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN202663529U CN202663529U CN 201220224110 CN201220224110U CN202663529U CN 202663529 U CN202663529 U CN 202663529U CN 201220224110 CN201220224110 CN 201220224110 CN 201220224110 U CN201220224110 U CN 201220224110U CN 202663529 U CN202663529 U CN 202663529U
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- China
- Prior art keywords
- microphone device
- encapsulated layer
- back cavity
- ante
- described encapsulated
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Abstract
The utility model provides a sounding device which comprises a case having holding space and a single sounding body arranged in the case. The single sounding body divides the case into a front cavity and a rear cavity opposite to the front cavity, and the front cavity is communicated with outside. The sounding device is also provided with a breathable encapsulated layer which wraps the single sounding body therein. The acoustic resistance of the encapsulated layer is not larger than 150MKS ray1s. The rear cavity is filled with a sound absorbing material. Compared with the correlated art, the sounding device has better acoustical performance.
Description
[technical field]
The utility model relates to a kind of microphone device, relates in particular to a kind of microphone device that is used on the portable type electronic product.
[background technology]
In the process of the portable equipment fast developments such as mobile phone, people are more and more stronger to the Functional Requirement of product, for this function of Music Appreciation of mobile phone, in order to make entertainment effect stronger, the pattern of music belt vibration occurred, thus, the development of microphone device is corresponding quickening also.
The microphone device of correlation technique, it comprises the housing with receiving space and places the interior sounding monomer of described receiving space, described sounding monomer is separated into ante-chamber and the back cavity relative with described ante-chamber with described receiving space, described ante-chamber communicates with the external world, this structure is so that microphone device has larger back cavity, thereby so that the microphone device of correlation technique has preferably low frequency audio.
Yet, its back cavity of the microphone device of correlation technique is enclosed construction, gas in the back cavity produces inhibition to the athletic meeting of described vibrating diaphragm, even can make the high-frequency resonant increase frequency of correlation technique microphone device, the low frequency audio reduces, thereby the acoustical behavior of the microphone device of correlation technique is caused negative effect.
Therefore, be necessary to propose a kind of new microphone device to address the above problem in fact.
[utility model content]
The technical problem that the utility model need solve provides the good microphone device of a kind of low frequency audio.
The utility model designed the good microphone device of a kind of low frequency audio, its objective is such realization:
A kind of microphone device, it comprises the housing with receiving space and the sounding monomer that places in the described housing, and described sounding monomer is separated into ante-chamber and the back cavity relative with described ante-chamber with described housing, and described ante-chamber communicates with the external world.Wherein, described microphone device also is provided with the described sounding monomer parcel encapsulated layer with gas permeability within it, and the acoustic resistance of described encapsulated layer is not more than 150MKS rayls, filling sucting sound material in the described back cavity.
Preferably, described encapsulated layer is provided with some through holes that run through on it, and the pore diameter range of described through hole is 1 μ m-500 μ m.
Preferably, described encapsulated layer is that thin-film material is made.
Preferably, described encapsulated layer is that nonwoven cloth material is made.
Preferably, described encapsulated layer is that the screen cloth material is made.
Preferably, described encapsulated layer is that non-textile material is made.
Preferably, described encapsulated layer is filter paper.
Preferably, described encapsulated layer is Du Pont's paper.
Preferably, described encapsulated layer is leaching membrane paper.
Preferably, described encapsulated layer is reticulate pattern paper.
Compare with correlation technique, its low frequency audio performance of the utility model microphone device is better.
[description of drawings]
Fig. 1 is the structural representation of the utility model microphone device.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, a kind of microphone device 10, it comprises the housing 1 with receiving space and the sounding monomer 2 that places in the housing 1, and sounding monomer 2 is separated into ante-chamber 12 and the back cavity 11 relative with ante-chamber with housing 1, and ante-chamber 12 communicates with the external world.In the present embodiment, sounding monomer 2 is loud speaker, and it is included in vibration in the air and the vibrating diaphragm 21 of sounding.Wherein, microphone device 10 also is provided with the sounding monomer 2 parcels encapsulated layer with gas permeability 4 within it, and the acoustic resistance of encapsulated layer 4 is not more than 150MKS rayls, back cavity 11 interior filling sucting sound materials 3.Encapsulated layer 4 in the present embodiment is one whole and sounding monomer 2 wrapped fully, thereby sounding monomer 2 and sound-absorbing material 3 are separated.So-called back cavity 11 interior filling sucting sound materials 3 can be interior partially filled at back cavity 11 in the present embodiment, also can be back cavity 11 to be filled expire, and this all is feasible.More excellent, with the full sound-absorbing material 3 of back cavity 11 interior fillings, fill up sound-absorbing material 3 in the back cavity 11 after, sound-absorbing material 3 just can not rock because of moving of microphone device 10, has improved the reliability of microphone device 10.
More excellent, encapsulated layer 4 is provided with some through holes (not shown) that run through on it, and the pore diameter range of through hole is 1 μ m-500 μ m.Through hole the gas permeability that can better improve encapsulated layer 4 is set.
Concrete encapsulated layer 4 is made for thin-film material or nonwoven cloth material or screen cloth material or non-textile material.More excellent, in the present embodiment, encapsulated layer 4 is filter paper or Du Pont's paper or leaching membrane paper or reticulate pattern paper.Sound-absorbing material 3 changes in order to the pressure that compensates in the back cavity 11, when vibrating diaphragm 21 vibrates towards back cavity 11 motion, gas pressure in the back cavity 11 increases and the concentration of air molecule is increased, this moment, sound-absorbing material 3 adsorbed more air molecule than hyperbar the time, falling the air pressure in the end back cavity 11, thus the impedance when having reduced vibrating diaphragm 21 vibration; When vibrating diaphragm 21 vibrates when ante-chamber moves, gas pressure in the back cavity 11 increases and atmospheric molecular concentration is increased, this moment, sound-absorbing material 3 adsorbed less air molecule when lower air pressure, air pressure with balance back cavity 11, thereby the impedance when reducing vibrating diaphragm 21 vibration, further improve the efficient of microphone device 10, improve its acoustical behavior.
In the utility model microphone device 10, the minimum diameter of sound-absorbing material 3 is greater than the maximum diameter of hole of through hole.This structure can prevent that sound-absorbing material 3 from seeing through encapsulated layer 4 and penetrating in the sounding monomer 2, thereby can prevent sound-absorbing material 3 to the impact of sounding monomer 2, has improved the reliability of microphone device 10.
Compare with correlation technique, the utility model microphone device is provided with the sound-absorbing material of compensation air pressure in its back cavity, balance the air pressure of vibrating diaphragm when vibration back cavity, thereby the impedance when having reduced the vibrating diaphragm vibration improves the efficient of microphone device.With the sounding monomer with behind the encapsulated layer parcel, direct filling sucting sound material then in the whole back cavity, sound-absorbing material need not parcel, more substantial being filled in the back cavity of energy makes the ability of sound-absorbing material balance acoustic pressure more excellent, improved the frequency acoustic of microphone device.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (10)
1. microphone device, it comprises the housing with receiving space and places the interior sounding monomer of described housing, described sounding monomer is separated into ante-chamber and the back cavity relative with described ante-chamber with described housing, described ante-chamber communicates with the external world, it is characterized in that: described microphone device also is provided with the described sounding monomer parcel encapsulated layer with gas permeability within it, the acoustic resistance of described encapsulated layer is not more than 150MKS rayls, filling sucting sound material in the described back cavity.
2. microphone device according to claim 1, it is characterized in that: described encapsulated layer is provided with some through holes that run through on it, and the pore diameter range of described through hole is 1 μ m-500m.
3. microphone device according to claim 2, it is characterized in that: described encapsulated layer is that thin-film material is made.
4. microphone device according to claim 2, it is characterized in that: described encapsulated layer is that nonwoven cloth material is made.
5. microphone device according to claim 2, it is characterized in that: described encapsulated layer is that the screen cloth material is made.
6. microphone device according to claim 2, it is characterized in that: described encapsulated layer is that non-textile material is made.
7. microphone device according to claim 2, it is characterized in that: described encapsulated layer is filter paper.
8. microphone device according to claim 2, it is characterized in that: described encapsulated layer is Du Pont's paper.
9. microphone device according to claim 2, it is characterized in that: described encapsulated layer is leaching membrane paper.
10. microphone device according to claim 2, it is characterized in that: described encapsulated layer is reticulate pattern paper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224110 CN202663529U (en) | 2012-05-17 | 2012-05-17 | Sounding device |
| US13/893,571 US8965025B2 (en) | 2012-05-17 | 2013-05-14 | Micro-speaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224110 CN202663529U (en) | 2012-05-17 | 2012-05-17 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663529U true CN202663529U (en) | 2013-01-09 |
Family
ID=47458398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220224110 Expired - Fee Related CN202663529U (en) | 2012-05-17 | 2012-05-17 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202663529U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142046A (en) * | 2015-08-11 | 2015-12-09 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making sound production device |
| WO2016034013A1 (en) * | 2014-09-01 | 2016-03-10 | 歌尔声学股份有限公司 | Speaker module |
| CN105532015A (en) * | 2013-06-07 | 2016-04-27 | 弗劳恩霍夫应用研究促进协会 | Acoustic system having a housing with adsorbent powder |
| WO2017059823A1 (en) * | 2015-10-06 | 2017-04-13 | Sound Solutions International Co., Ltd. | Electroacoustic transducer |
| CN107426656A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107426657A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN108668207A (en) * | 2018-04-24 | 2018-10-16 | 歌尔股份有限公司 | A kind of sound-producing device |
| US10542344B2 (en) | 2014-09-01 | 2020-01-21 | Goertek Inc. | Loudspeaker module and manufacturing method thereof |
| CN111065017A (en) * | 2015-05-18 | 2020-04-24 | 苹果公司 | Audio speaker with back chamber containing adsorbent material |
-
2012
- 2012-05-17 CN CN 201220224110 patent/CN202663529U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105532015A (en) * | 2013-06-07 | 2016-04-27 | 弗劳恩霍夫应用研究促进协会 | Acoustic system having a housing with adsorbent powder |
| CN105532015B (en) * | 2013-06-07 | 2020-03-17 | 弗劳恩霍夫应用研究促进协会 | Acoustic system having housing containing adsorbent powder |
| US10542344B2 (en) | 2014-09-01 | 2020-01-21 | Goertek Inc. | Loudspeaker module and manufacturing method thereof |
| WO2016034013A1 (en) * | 2014-09-01 | 2016-03-10 | 歌尔声学股份有限公司 | Speaker module |
| WO2016033865A1 (en) * | 2014-09-01 | 2016-03-10 | 歌尔声学股份有限公司 | Speaker module |
| US10299033B2 (en) | 2014-09-01 | 2019-05-21 | Goertek Inc. | Loudspeaker module |
| CN111065017B (en) * | 2015-05-18 | 2022-06-03 | 苹果公司 | Audio speaker with back chamber containing adsorbent material |
| US11026018B2 (en) | 2015-05-18 | 2021-06-01 | Apple Inc. | Audio speaker with back volume containing adsorptive material |
| CN111065017A (en) * | 2015-05-18 | 2020-04-24 | 苹果公司 | Audio speaker with back chamber containing adsorbent material |
| CN105142046A (en) * | 2015-08-11 | 2015-12-09 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making sound production device |
| WO2017059823A1 (en) * | 2015-10-06 | 2017-04-13 | Sound Solutions International Co., Ltd. | Electroacoustic transducer |
| US10009682B2 (en) | 2015-10-06 | 2018-06-26 | Sound Solutions International Co., Ltd. | Electroacoustic transducer |
| CN107426656B (en) * | 2017-09-08 | 2020-01-14 | Oppo广东移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107426657A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN107426656A (en) * | 2017-09-08 | 2017-12-01 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| WO2019205719A1 (en) * | 2018-04-24 | 2019-10-31 | 歌尔股份有限公司 | Sound-producing device |
| CN108668207A (en) * | 2018-04-24 | 2018-10-16 | 歌尔股份有限公司 | A kind of sound-producing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20210517 |