CN204392531U - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN204392531U CN204392531U CN201520033510.9U CN201520033510U CN204392531U CN 204392531 U CN204392531 U CN 204392531U CN 201520033510 U CN201520033510 U CN 201520033510U CN 204392531 U CN204392531 U CN 204392531U
- Authority
- CN
- China
- Prior art keywords
- microphone device
- screen cloth
- dust
- proof screen
- cavity
- 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
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of microphone device, it comprises the housing with cavity and the acoustical generator unit be installed on described housing, described microphone device also comprises the sound absorber be arranged in described cavity further, described sound absorber comprises the shell with receiving space, the dust-proof screen cloth being filled in shell described in sound absorption powder in described receiving space and involution, described dust-proof screen cloth by described sound absorption powder involution in described receiving space.The low frequency performance of microphone device of the present utility model is good.
Description
[technical field]
The utility model relates to a kind of microphone device, particularly relates to a kind of microphone device be used on portable type electronic product.
[background technology]
In the process of the portable type electronic product fast developments such as mobile phone, user is more and more stronger to the Functional Requirement of product, thus, and the development also corresponding quickening of microphone device.
The microphone device of correlation technique, it comprises the housing with cavity and the acoustical generator unit be installed on described housing.Because cavity is enclosed construction and cavity volume is smaller, so the resonance frequency of microphone device is high, causes the low frequency performance of microphone device poor, be difficult to play out simple and honest abundant bass.But the miniaturization of microphone device again limit the specification of microphone device, the low frequency performance improving microphone device by enlarged cavities is merely difficult to realize.
Therefore, be necessary to provide a kind of new technical scheme to overcome above-mentioned defect in fact.
[utility model content]
The purpose of this utility model is to provide the good microphone device of a kind of low frequency performance.
The purpose of this utility model is achieved in that
A kind of microphone device, it comprises the housing with cavity and the acoustical generator unit be installed on described housing, described microphone device also comprises the sound absorber be arranged in described cavity further, described sound absorber comprises the shell with receiving space, the dust-proof screen cloth being filled in shell described in sound absorption powder in described receiving space and involution, described dust-proof screen cloth by described sound absorption powder involution in described receiving space.
Preferably, described shell is by ABS plastic injection mo(u)lding.
Preferably, described dust-proof screen cloth adopts hot melt pressing mode to be combined in described shell.
Preferably, described shell is provided with the step installation portion of depression, and described dust-proof screen cloth is combined in described step installation portion.
A kind of microphone device, it comprises the housing with cavity and the acoustical generator unit be installed on described housing, described microphone device also comprises dust-proof screen cloth further, described cavity is divided into ante-chamber and the back cavity relative with described ante-chamber by described dust-proof screen cloth, described acoustical generator unit is arranged in described ante-chamber, described microphone device also comprises the sound absorption powder be filled in described back cavity further, described dust-proof screen cloth by described sound absorption powder involution in described back cavity.
Preferably, described housing is by ABS plastic injection mo(u)lding.
Preferably, described dust-proof screen cloth adopts hot melt pressing mode to be combined in described housing.
Preferably, described housing is provided with the extension extended in cavity, and described dust-proof screen cloth is combined in described extension.
Preferably, described acoustical generator unit is provided with the perforate communicated with back cavity, and described dust-proof screen cloth attaches described perforate.
The utility model has the following advantages: the low frequency performance of microphone device of the present utility model is good.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the microphone device of the first embodiment of the present utility model;
Fig. 2 is the structural representation of the microphone device of the second embodiment of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figure 1, for the microphone device 100 of the first embodiment of the present utility model, it comprises the housing 1 with cavity 10 and the acoustical generator unit 2 be installed on described housing 1, described microphone device 100 also comprises the sound absorber 3 be arranged in described cavity 10 further, described sound absorber 3 comprises the shell 31 with receiving space 30, the dust-proof screen cloth 32 being filled in shell 31 described in sound absorption powder 33 in described receiving space 30 and involution, described dust-proof screen cloth 32 by described sound absorption powder 33 involution in described receiving space 30.The very thin and good permeability of dust-proof screen cloth 32.
Preferably, described shell 31 is by ABS (Acrylonitrile Butadiene Styrenecopolymers) injection molding.Shell 31 thickness distribution of ABS plastic injection mo(u)lding is even, and intensity is better, not yielding.
Preferably, described dust-proof screen cloth 32 adopts hot melt pressing mode to be combined in described shell 31.During the dust-proof screen cloth 32 of hot melt pressing, hot melt pressing tool clamping shell 31, because shell 31 intensity is better, can not there is clamping distortion and temperature distortion in not yielding thus shell 31, reduce position shift phenomenon during hot melt pressing.
Certainly, the mode that dust-proof screen cloth 32 is combined in described shell 31 is not limited to hot melt pressing mode, also can be ultrasonic wave mode or plays glue, as long as or other can be bonding mode.
Preferably, described shell 31 is provided with the step installation portion 31a of depression, and described dust-proof screen cloth 32 is combined in described step installation portion 31a.Step installation portion 31a is arranged so that the location of dust-proof screen cloth 32 when being combined in described shell 31 more accurately, conveniently.
Be provided with the sound absorber 3 compensating air pressure in the cavity 10 of microphone device 100, reduce the resonance frequency of cavity 10, promote LF-response, play the effect being similar to enlarged cavities 10, improve low frequency performance.
As shown in Figure 2, for the microphone device 200 of the second embodiment of the present utility model, it comprises the housing 4 with cavity 40 and the acoustical generator unit 5 be installed on described housing 4, described microphone device 200 also comprises dust-proof screen cloth 6 further, described cavity 40 is divided into ante-chamber 41 and the back cavity 42 relative with described ante-chamber 41 by described dust-proof screen cloth 6, described acoustical generator unit 5 is arranged in described ante-chamber 41, described microphone device 200 also comprises the sound absorption powder 7 be filled in described back cavity 42 further, described dust-proof screen cloth 6 by described sound absorption powder 7 involution in described back cavity 42.The very thin and good permeability of dust-proof screen cloth 6.
Preferably, described housing 4 is by ABS (Acrylonitrile Butadiene Styrenecopolymers) injection molding.Housing 4 thickness distribution of ABS plastic injection mo(u)lding is even, and intensity is better, not yielding.
Preferably, described dust-proof screen cloth 6 adopts hot melt pressing mode to be combined in described housing 4.During the dust-proof screen cloth 6 of hot melt pressing, hot melt pressing tool clamping housing 4, because housing semi-finals degree is better, can not there is clamping distortion and temperature distortion in not yielding thus housing 4, reduce position shift phenomenon during hot melt pressing.
Certainly, the mode that dust-proof screen cloth 6 is combined in described housing 4 is not limited to hot melt pressing mode, also can be ultrasonic wave mode or plays glue, as long as or other can be bonding mode.
Preferably, described housing 4 is provided with the extension 4a extended in cavity 40, and described dust-proof screen cloth 6 is combined in described extension 4a.Extension 4a is arranged so that the location of dust-proof screen cloth 6 when being combined in described housing 4 more accurately, conveniently.Meanwhile, extension 4a is combined in the joint portion of described housing 4 as dust-proof screen cloth 6.
Preferably, described acoustical generator unit 5 is provided with the perforate communicated with back cavity 42, and described dust-proof screen cloth 6 attaches described perforate.Sound absorption powder 7 can more substantially be filled in back cavity 42, in other words, described cavity 40 is except the space that acoustical generator unit 5 occupies, remainder all fills sound absorption powder 7, and dust-proof screen cloth 6 can, by sound absorption powder 7 involution in back cavity 42, be avoided entering into acoustical generator unit 5 or ante-chamber 41.
Be provided with the sound absorption powder 7 compensating air pressure in the back cavity 42 of microphone device 200, reduce the resonance frequency of back cavity 42, promote LF-response, play the effect being similar to and expanding back cavity 42, improve low frequency performance.
Above-described is only execution mode of the present utility model; it should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite not departing from the utility model creation design; improvement can also be made, but these all belong to protection range of the present utility model.
Claims (9)
1. a microphone device, it comprises the housing with cavity and the acoustical generator unit be installed on described housing, it is characterized in that: described microphone device also comprises the sound absorber be arranged in described cavity further, described sound absorber comprises the shell with receiving space, the dust-proof screen cloth being filled in shell described in sound absorption powder in described receiving space and involution, described dust-proof screen cloth by described sound absorption powder involution in described receiving space.
2. microphone device according to claim 1, is characterized in that: described shell is by ABS plastic injection mo(u)lding.
3. microphone device according to claim 2, is characterized in that: described dust-proof screen cloth adopts hot melt pressing mode to be combined in described shell.
4. microphone device according to claim 1, is characterized in that: described shell is provided with the step installation portion of depression, and described dust-proof screen cloth is combined in described step installation portion.
5. a microphone device, it comprises the housing with cavity and the acoustical generator unit be installed on described housing, it is characterized in that: described microphone device also comprises dust-proof screen cloth further, described cavity is divided into ante-chamber and the back cavity relative with described ante-chamber by described dust-proof screen cloth, described acoustical generator unit is arranged in described ante-chamber, described microphone device also comprises the sound absorption powder be filled in described back cavity further, described dust-proof screen cloth by described sound absorption powder involution in described back cavity.
6. microphone device according to claim 5, is characterized in that: described housing is by ABS plastic injection mo(u)lding.
7. microphone device according to claim 6, is characterized in that: described dust-proof screen cloth adopts hot melt pressing mode to be combined in described housing.
8. microphone device according to claim 5, is characterized in that: described housing is provided with the extension extended in cavity, and described dust-proof screen cloth is combined in described extension.
9. microphone device according to claim 5, is characterized in that: described acoustical generator unit is provided with the perforate communicated with back cavity, and described dust-proof screen cloth attaches described perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520033510.9U CN204392531U (en) | 2015-01-16 | 2015-01-16 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520033510.9U CN204392531U (en) | 2015-01-16 | 2015-01-16 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392531U true CN204392531U (en) | 2015-06-10 |
Family
ID=53365208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520033510.9U Expired - Fee Related CN204392531U (en) | 2015-01-16 | 2015-01-16 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392531U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105187960A (en) * | 2015-07-20 | 2015-12-23 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making same |
| WO2016165318A1 (en) * | 2015-04-13 | 2016-10-20 | 歌尔声学股份有限公司 | Speaker module |
| CN108307279A (en) * | 2018-01-29 | 2018-07-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| US20190335257A1 (en) * | 2016-06-16 | 2019-10-31 | Goertek Inc. | Speaker module |
| CN111083602A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Sound absorbing material packaging structure for sound generating device and sound generating device |
-
2015
- 2015-01-16 CN CN201520033510.9U patent/CN204392531U/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN105187960A (en) * | 2015-07-20 | 2015-12-23 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making same |
| CN105187960B (en) * | 2015-07-20 | 2018-09-07 | 瑞声光电科技(常州)有限公司 | The method for making microphone device |
| US20190335257A1 (en) * | 2016-06-16 | 2019-10-31 | Goertek Inc. | Speaker module |
| US10757493B2 (en) * | 2016-06-16 | 2020-08-25 | Goertek Inc. | Speaker module |
| CN108307279A (en) * | 2018-01-29 | 2018-07-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN111083602A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Sound absorbing material packaging structure for sound generating device and sound generating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180926 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: 213167 Changzhou, Jiangsu City, Wujin province summer town villa Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |
|
| 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: 20150610 Termination date: 20220116 |