CN202652506U - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN202652506U CN202652506U CN 201220224253 CN201220224253U CN202652506U CN 202652506 U CN202652506 U CN 202652506U CN 201220224253 CN201220224253 CN 201220224253 CN 201220224253 U CN201220224253 U CN 201220224253U CN 202652506 U CN202652506 U CN 202652506U
- Authority
- CN
- China
- Prior art keywords
- hole
- microphone device
- pore diameter
- housing
- diameter range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a sounding device, which comprises a housing with an accommodating space and a sounding unit arranged in the housing, wherein the sounding unit divides the housing into a front cavity and a back cavity opposite to the front cavity, and the front cavity is communicated with the outside. The back cavity is provided with an adsorption unit including an encapsulation layer and sound absorbing material accommodated in the encapsulation layer, wherein the encapsulation layer is breathable and is provided with a plurality of through holes passing through the encapsulation layer, the apertures of the through holes range from 1-500mum, the acoustic resistance of the encapsulation layer is not more than 150MKS rayls, and the minimum diameter of the sound absorbing material is greater than the maximum aperture of the through holes. Compared with the related art, the sounding device provided by the utility model has better low-frequency sound 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 the sounding monomer that places in the described receiving space, and described sounding monomer is separated into ante-chamber and the back cavity relative with described ante-chamber with described receiving space, and 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 makes the acoustical behavior of the microphone device of correlation technique produce 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, be provided with absorbing unit in the described back cavity, described absorbing unit comprises encapsulated layer and is housed in the interior sound-absorbing material of described encapsulated layer, described encapsulated layer has gas permeability, offer some through holes that run through on it on it, the pore diameter range of described through hole is 1 μ m-500 μ m, and the acoustic resistance of described encapsulated layer is not more than 150MKS rayls, and the minimum diameter of described sound-absorbing material is greater than the maximum diameter of hole of described through hole.。
Preferably, the pore diameter range of described through hole is 3 μ m-9 μ m.
Preferably, the pore diameter range of described through hole is 11 μ m-39 μ m.
Preferably, the pore diameter range of described through hole is 41 μ m-49 μ m.
Preferably, the pore diameter range of described through hole is 51 μ m-99 μ m.
Preferably, the pore diameter range of described through hole is 101 μ m-199 μ m.
Preferably, the pore diameter range of described through hole is 201 μ m-500 μ m.
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.
Fig. 2 is the structural representation of the utility model microphone device absorbing unit.
Fig. 3 is the part-structure enlarged drawing of Fig. 2.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As Figure 1-3, 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.Sounding monomer 2 is included in the vibrating diaphragm 21 that vibrates in the air and sound.Wherein, be provided with absorbing unit 3 in the back cavity 11, absorbing unit 3 comprises encapsulated layer 31 and the sound-absorbing material 32 that is housed in the encapsulated layer 31.Absorbing unit 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, absorbing unit 3 interior sound-absorbing materials 32 adsorbed more air molecule than hyperbar the time, falling the air pressure in the end back cavity, thus the impedance when having reduced vibrating diaphragm 2 vibration; When vibrating diaphragm 2 vibrates when ante-chamber moves, gas pressure in the back cavity 11 increases and atmospheric molecular concentration is increased, this moment, absorbing unit 3 interior sound-absorbing materials 32 adsorbed less air molecule when lower air pressure, air pressure with balance back cavity 11, thereby the impedance when reducing vibrating diaphragm 2 vibration, further improve the efficient of microphone device 10, improve its acoustical behavior.
In the utility model microphone device 10, the minimum diameter d2 of sound-absorbing material 32 is greater than the maximum diameter of hole d1 of through hole 311, thereby can prevent that sound-absorbing material 32 from seeing through encapsulated layer 31 and oozing out, and then can prevent sound-absorbing material 32 to the impact of sounding monomer 2, improve the reliability of microphone device 10.Encapsulated layer 31 is flexible, but the shape of self adaptation back cavity 11 after 31 encapsulation of sound-absorbing material 32 usefulness encapsulated layers, can be installed in very easily in the back cavity 11, and the back cavity 11 of suitable any shape is installed.
Compare with correlation technique, the utility model microphone device is provided with the absorbing unit 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, improve the efficient of microphone device, improved its frequency acoustic performance.
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 (7)
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: be provided with absorbing unit in the described back cavity, described absorbing unit comprises encapsulated layer and is housed in the interior sound-absorbing material of described encapsulated layer, described encapsulated layer has gas permeability, offer some through holes that run through on it on it, the pore diameter range of described through hole is 1 μ m-500 μ m, the acoustic resistance of described encapsulated layer is not more than 150MKS rayls, and the minimum diameter of described sound-absorbing material is greater than the maximum diameter of hole of described through hole.
2. microphone device according to claim 1, it is characterized in that: the pore diameter range of described through hole is 3 μ m-9 μ m.
3. microphone device according to claim 1, it is characterized in that: the pore diameter range of described through hole is 11 μ m-39 μ m.
4. microphone device according to claim 1, it is characterized in that: the pore diameter range of described through hole is 41 μ m-49 μ m.
5. microphone device according to claim 1, it is characterized in that: the pore diameter range of described through hole is 51 μ m-99 μ m.
6. microphone device according to claim 1, it is characterized in that: the pore diameter range of described through hole is 101 μ m-199 μ m.
7. microphone device according to claim 1, it is characterized in that: the pore diameter range of described through hole is 201 μ m-500 μ m.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224253 CN202652506U (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 201220224253 CN202652506U (en) | 2012-05-17 | 2012-05-17 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652506U true CN202652506U (en) | 2013-01-02 |
Family
ID=47421526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220224253 Expired - Fee Related CN202652506U (en) | 2012-05-17 | 2012-05-17 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165318A1 (en) * | 2015-04-13 | 2016-10-20 | 歌尔声学股份有限公司 | Speaker module |
| 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 |
-
2012
- 2012-05-17 CN CN 201220224253 patent/CN202652506U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165318A1 (en) * | 2015-04-13 | 2016-10-20 | 歌尔声学股份有限公司 | Speaker module |
| 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 |
| WO2019205719A1 (en) * | 2018-04-24 | 2019-10-31 | 歌尔股份有限公司 | Sound-producing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202663529U (en) | Sounding device | |
| CN204993827U (en) | Loudspeaker module | |
| CN202103810U (en) | MP3 player with novel structure | |
| CN102724606B (en) | Sounding device | |
| CN207531068U (en) | Loudspeaker enclosure | |
| CN105592389A (en) | Loudspeaker module | |
| CN203193875U (en) | Loudspeaker module | |
| CN202652506U (en) | Sounding device | |
| CN211860520U (en) | Novel resonance sounding flat-panel sound box | |
| CN201523448U (en) | Speaker and portable electronic equipment | |
| CN102131140B (en) | Micro-electro-mechanical systems (MEMS) microphone | |
| CN201718041U (en) | Acoustic generator | |
| CN204090070U (en) | The horn structure that initiatively loud speaker is integrated with passive radiator and audio amplifier | |
| CN201345728Y (en) | Micro-speaker | |
| CN204442674U (en) | A kind of loud speaker module | |
| CN202455491U (en) | Mega bass mini loudspeaker box | |
| CN201204692Y (en) | Integration system for multifunctional sound generator | |
| CN201114743Y (en) | Vibration speaker | |
| CN201667714U (en) | Piezoelectric type loudspeaker | |
| CN201608873U (en) | Electroacoustic sounder | |
| CN201438759U (en) | Sounder | |
| CN209330393U (en) | A kind of ultra-wideband sounding device | |
| CN104378712B (en) | The audio amplifier of low frequency dynamic resonance enhancing | |
| CN208015988U (en) | Electronic equipment | |
| CN201290173Y (en) | Multifunctional sound generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170503 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Optoelectronic (Changzhou) Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: AAC Optoelectronic (Changzhou) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180920 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee before: AAC Optoelectronic (Changzhou) Co., Ltd. Patentee before: AAC Technologies (Singapore) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20210517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |