CN204681564U - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN204681564U CN204681564U CN201520304094.1U CN201520304094U CN204681564U CN 204681564 U CN204681564 U CN 204681564U CN 201520304094 U CN201520304094 U CN 201520304094U CN 204681564 U CN204681564 U CN 204681564U
- Authority
- CN
- China
- Prior art keywords
- microphone device
- wire netting
- cavity
- housing
- shell
- 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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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 wire netting being filled in shell described in sound absorption powder in described receiving space and involution, described wire netting by described sound absorption powder involution in described receiving space.The low frequency performance of microphone device of the present utility model is good, reliability is high.
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.
In order to improve the problem of low frequency performance, the microphone device of correlation technique takes filling sucting sound material in cavity, and sound-absorbing material is by nonwoven fabrics or Air Filter cloth involution.But nonwoven fabrics and poor being easy to of the intensity of dust-proof screen cloth own deform, and nonwoven fabrics and dust-proof screen cloth easily damaged, layering when encapsulating, cause the reliability of the microphone device of correlation technique poor.In addition, nonwoven fabrics is breathed freely the very poor improvement that also govern low frequency performance of consistency.
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 microphone device that a kind of low frequency performance is good, reliability is high.
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 wire netting being filled in shell described in sound absorption powder in described receiving space and involution, described wire netting by described sound absorption powder involution in described receiving space.
Preferably, described shell is by ABS plastic or PC plastics or PP injection molding.
Preferably, described wire netting adopts hot melt pressing mode or laser welding mode or ultrasonic bonding mode to be combined in described shell.
Preferably, described shell is provided with the step installation portion of depression, and described wire netting 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 wire netting further, described cavity is divided into ante-chamber and the back cavity relative with described ante-chamber by described wire netting, 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 wire netting by described sound absorption powder involution in described back cavity.
Preferably, described housing is by ABS plastic or PC plastics or PP injection molding.
Preferably, described wire netting adopts hot melt pressing mode or laser welding mode or ultrasonic bonding mode to be combined in described housing.
Preferably, described housing is provided with the extension extended in cavity, and described wire netting is combined in described extension.
Preferably, described acoustical generator unit is provided with the perforate communicated with back cavity, and described wire netting attaches described perforate.
The utility model has the following advantages: the low frequency performance of microphone device of the present utility model is good, reliability is high.
[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 wire netting 32 being filled in shell 31 described in sound absorption powder 33 in described receiving space 30 and involution, described wire netting 32 by described sound absorption powder 33 involution in described receiving space 30.
Preferably, described shell 31 is by ABS (Acrylonitrile Butadiene Styrenecopolymers) plastics or PC (Polycarbonate) plastics or PP (Polypropylene) injection molding.
Preferably, described wire netting 32 adopts hot melt pressing mode or laser welding mode or ultrasonic bonding mode to be combined in described shell 31.Certainly, the mode that wire netting 32 is combined in described shell 31 does not limit to above-mentioned 3 kinds of modes, also can be beat 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 wire netting 32 is combined in described step installation portion 31a.Step installation portion 31a is arranged so that the location of wire netting 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.Wire netting 32 gas permeability is better, is conducive to the improvement of the low frequency performance of sound absorber 3 pairs of microphone devices 100; The more not at all easy breakage of wire netting Final 32 degree, reliability is high; Hot melt pressing wire netting 32 is combined in shell 31, and the bonding force between wire netting 32 and shell 31 is better, and reliability is high; In addition, can, according to the different demands of properties of product, the wire netting 32 of different meshes be selected to carry out involution.
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 wire netting 6 further, described cavity 40 is divided into ante-chamber 41 and the back cavity 42 relative with described ante-chamber 41 by described wire netting 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 wire netting 6 by described sound absorption powder 7 involution in described back cavity 42.
Preferably, described housing 4 is by ABS (Acrylonitrile Butadiene Styrenecopolymers) plastics or PC (Polycarbonate) plastics or PP (Polypropylene) injection molding.
Preferably, described wire netting 6 adopts hot melt pressing mode or laser welding mode or ultrasonic bonding mode to be combined in described housing 4.Certainly, the mode that wire netting 6 is combined in described housing 4 does not limit to above-mentioned 3 kinds of modes, also can be beat 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 wire netting 6 is combined in described extension 4a.Extension 4a is arranged so that the location of wire netting 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 wire netting 6.
Preferably, described acoustical generator unit 5 is provided with the perforate (not shown) communicated with back cavity 42, and described wire netting 6 attaches described perforate.Such 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 wire netting 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.Wire netting 6 gas permeability is better, is conducive to the improvement of the low frequency performance of sound absorption powder 7 pairs of microphone devices 200; The more not at all easy breakage of wire netting 6 intensity, reliability is high; Hot melt pressing wire netting 6 is combined in housing 4, and the bonding force between wire netting 6 and housing 4 is better, and reliability is high; In addition, can, according to the different demands of properties of product, the wire netting 6 of different meshes be selected to carry out involution.
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 wire netting being filled in shell described in sound absorption powder in described receiving space and involution, described wire netting 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 or PC plastics or PP injection molding.
3. microphone device according to claim 1, is characterized in that: described wire netting adopts hot melt pressing mode or laser welding mode or ultrasonic bonding 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 wire netting 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 wire netting further, described cavity is divided into ante-chamber and the back cavity relative with described ante-chamber by described wire netting, 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 wire netting 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 or PC plastics or PP injection molding.
7. microphone device according to claim 5, is characterized in that: described wire netting adopts hot melt pressing mode or laser welding mode or ultrasonic bonding 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 wire netting 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 wire netting attaches described perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304094.1U CN204681564U (en) | 2015-05-12 | 2015-05-12 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304094.1U CN204681564U (en) | 2015-05-12 | 2015-05-12 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681564U true CN204681564U (en) | 2015-09-30 |
Family
ID=54181230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520304094.1U Expired - Fee Related CN204681564U (en) | 2015-05-12 | 2015-05-12 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681564U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828262A (en) * | 2016-04-28 | 2016-08-03 | 歌尔声学股份有限公司 | Packaging sound-absorbing assembly containing vent groove structure for loudspeaker |
| 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 |
| CN111147977A (en) * | 2019-12-30 | 2020-05-12 | 歌尔科技有限公司 | Sound production device module and assembly method |
| WO2021135631A1 (en) * | 2019-12-30 | 2021-07-08 | 歌尔股份有限公司 | Sound-generating device module and electronic product |
-
2015
- 2015-05-12 CN CN201520304094.1U patent/CN204681564U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828262A (en) * | 2016-04-28 | 2016-08-03 | 歌尔声学股份有限公司 | Packaging sound-absorbing assembly containing vent groove structure for loudspeaker |
| CN105828262B (en) * | 2016-04-28 | 2019-09-27 | 歌尔股份有限公司 | The encapsulation sound-absorbing component of the slot structure containing ventilation for loudspeaker |
| 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 |
| WO2021120915A1 (en) * | 2019-12-19 | 2021-06-24 | 歌尔股份有限公司 | Sound absorbing material encapsulation structure for sound production device, and sound production device |
| CN111147977A (en) * | 2019-12-30 | 2020-05-12 | 歌尔科技有限公司 | Sound production device module and assembly method |
| WO2021135631A1 (en) * | 2019-12-30 | 2021-07-08 | 歌尔股份有限公司 | Sound-generating device module and electronic product |
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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: 20180925 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: 20150930 |