CN204929201U - Sounding device - Google Patents
Sounding device Download PDFInfo
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- CN204929201U CN204929201U CN201520572342.0U CN201520572342U CN204929201U CN 204929201 U CN204929201 U CN 204929201U CN 201520572342 U CN201520572342 U CN 201520572342U CN 204929201 U CN204929201 U CN 204929201U
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- microphone device
- shell
- cavity
- sound absorption
- absorption unit
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Abstract
The utility model provides a sounding device. A sounding device which including the casing that has a cavity with install in vocal ware unit in the casing, the cavity include the ante -chamber and with the back cavity of ante -chamber intercommunication, sound production ware unit is located in the ante -chamber, sounding device is still including the sound absorption unit, the sound absorption unit is located in the back cavity, the sound absorption unit including the accommodating space shell has, fill in accommodating space sound absorbent and involution the encapsulated layer of shell, be equipped with a plurality of bleeder vents on the shell. The utility model provides a sounding device passes through the bleeder vent has been seted up on the lateral wall, the increase that can show sound absorbent with the intercommunication area of cavity improves the sound absorbent and the contact of air are rateed to the further improvement sounding device's low frequency performance.
Description
Technical field
The utility model relates to acoustic-electric field, 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 to improve.Normally sound-absorbing material is located in the box body of an opening, then with ventilative encapsulating material by sound-absorbing material involution in box body.In this case, the effective contact rate of the sound-absorbing material of tray interior and air can not caused high and then affect the improvement of sound-absorbing material to low frequency performance.
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 provides the microphone device that a kind of low frequency performance is good.
The purpose of this utility model is achieved in that provides a kind of microphone device, it comprises the housing with cavity and the acoustical generator unit be installed in described housing, the back cavity that described cavity is divided into ante-chamber and is communicated with described ante-chamber, described acoustical generator unit is located in described ante-chamber, described microphone device also comprises the sound absorption unit be installed in described back cavity, described sound absorption unit comprises the encapsulated layer of shell described in the shell with receiving space, the sound-absorbing material being filled in described receiving space and involution, and described shell is provided with multiple air-vent.
Above-mentioned microphone device, described multiple air-vent is that array is arranged.
Above-mentioned microphone device, described sound absorption unit and described acoustical generator unit interval are arranged, and described air-vent is arranged on the side of described shell near described acoustical generator unit.
Above-mentioned microphone device, described shell pressing and forming is in described back cavity, and described shell has the contour shape matched with described back cavity.
Above-mentioned microphone device, described housing comprises upper shell and lower house, and described upper shell and described lower house assembly form described cavity.
Above-mentioned microphone device, described sound absorption unit also comprises liner, and described liner is attached at the surface of described upper shell towards described lower house.
Above-mentioned microphone device, described sound absorption unit also comprises adhesive tape, and described adhesive tape is located between the shell of described liner and described sound absorption unit, and described shell is adhesively fixed by described adhesive tape and described liner.
Above-mentioned microphone device, the described upper shell position corresponding with described acoustical generator unit is provided with multiple phonate hole.
Above-mentioned microphone device, the sound absorption unit in described back cavity is provided with multiple microphone device and comprises multiple described sound absorption unit.
The microphone device that the utility model provides is by improving the structure of sound absorption unit and then improving the low frequency performance of described microphone device.Described sound absorption unit by offering air-vent on the housing, thus significant increase described sound-absorbing material and described cavity be communicated with area, improve the effective contact rate of described sound-absorbing material and air, thus the low frequency performance of the described microphone device of further improvement.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the three-dimensional exploded view of the microphone device that the utility model provides;
Fig. 2 is the assembling schematic diagram that the microphone device shown in Fig. 1 opens lower house;
Fig. 3 is the enlarged drawing at A position in Fig. 2;
Fig. 4 is the sectional structure schematic diagram of the microphone device that the utility model provides.
Embodiment
Below in conjunction with drawings and embodiments, the invention will be further described.
Please refer to Fig. 1, Fig. 2 and Fig. 3, wherein Fig. 1 is the three-dimensional exploded view of the microphone device that the utility model provides, and Fig. 2 is assembling schematic diagram and the partial enlarged drawing that the microphone device shown in Fig. 1 opens lower house, and Fig. 3 is the enlarged drawing at A position in Fig. 2.Described microphone device 100 comprises housing 10, acoustical generator unit 30 and the sound absorption unit 40 with cavity 20.Described acoustical generator unit 30 and described sound absorption unit 40 are all located in the cavity 20 of described housing 10.
Described housing 10 comprises upper shell 11 and lower house 12, and described upper shell 11 and described lower house 12 assembly form described cavity 20.Described upper shell 11 is provided with multiple phonate hole 110.
Described cavity 20 comprises ante-chamber 21 and back cavity 22, and described ante-chamber 21 is for accommodating described acoustical generator unit 30, and described back cavity is for accommodating described sound absorption unit 40.
Described acoustical generator unit 30 is oppositely arranged with the phonate hole 110 of described upper shell 11.
Incorporated by reference to consulting Fig. 4, wherein Fig. 4 is the cutaway view of the microphone device shown in Fig. 1.Described sound absorption unit 40 comprises shell 41, sound-absorbing material 42, encapsulated layer 43, liner 44 and adhesive tape 45.Described shell 41 has receiving space, and described sound-absorbing material 42 is filled in described receiving space, shell 41 described in described encapsulated layer 43 involution, thus by described sound-absorbing material 42 involution in described receiving space.Described liner 44 is attached at the surface of described upper shell 11 towards described lower house 12, and described adhesive tape 45 is located between described shell 41 and described liner 44, and described shell 41 bonds fixing by described adhesive tape 45 and described liner 44.In the present embodiment, described sound absorption unit 40 can be provided with multiple.
Described shell 41 comprises diapire 411 and bends the multiple sidewalls 412 extended to form along diapire 411, described multiple sidewall 412 is end to end and be located at the same side of described diapire 411, and described diapire 411 coordinates described sidewall 412 to surround the receiving space of one end open thus.
Described sidewall 412 is provided with multiple air-vent 413, and multiple air-vent 413 interval is arranged, and preferably, multiple air-vent 413 array is arranged.Preferably, described multiple air-vent 413 is located on the sidewall 412 near described sound absorption unit 40, or be located at be exposed to described cavity 20 sidewall 412 on.The pore size of described multiple air-vent 413 is identical.Preferably, described air-vent 413 can adopt the mode of laser engraving to be processed to form.What described multiple air-vent 413 can enlarge markedly described sound-absorbing material 42 and described cavity 20 is communicated with area, strengthens the acoustically effective of described sound absorption unit 40.
Preferably, described shell 41 pressing and forming is in described back cavity 22, and described shell 41 has the contour shape matched with described back cavity 22.Arranging like this can make the filling weight of the sound-absorbing material 42 in described shell 41 maximize.
Described sound-absorbing material 42 is loose structure, and it can carry out atmospheric pressure compensating to described microphone device 100, thus reduces the resonance frequency of described back cavity 52, promotes LF-response.
Described encapsulated layer 43 is Reticular breathable structure, and the ventilating structure design of described encapsulated layer 43 can make described sound-absorbing material 42 be communicated with described cavity 20, thus better can absorb sound wave.
Described liner 44 mainly plays cushioning effect, can play the function of good cushioning effect power, thus protect described microphone device 100 when described microphone device 100 falls or receive impact.
Described adhesive tape 45 is for boning fixing by described shell 41 and described adhesive tape 45, thus it is firm that the installation of described shell 41 is more stablized.
Compared to prior art, the microphone device 100 that the utility model provides is provided with the described sound absorption unit 40 compensating air pressure, reduces the resonance frequency of described back cavity 22, can promote LF-response, the effect being similar to and expanding described back cavity 22 can be played, improve low frequency performance.And described sound absorption unit 40 does not make described sound-absorbing material 42 be communicated with described cavity 20 by means of only the ventilating structure design of encapsulated layer 43, also multiple air-vent 413 is set on described sidewall 412 simultaneously, what this improvement can increase described sound-absorbing material 42 and described cavity 20 significantly is communicated with area, improve the effective contact rate of described sound-absorbing material 42 and air, thus improve the low frequency performance of described microphone device 100 further.
Above-described is only embodiments of the present invention, it should be pointed out that for the person of ordinary skill of the art at this, without departing from the concept of the premise of the invention, can also make improvement, but these all belongs to protection scope of the present invention.
Claims (9)
1. a microphone device, it comprises the housing with cavity and the acoustical generator unit be installed in described housing, the back cavity that described cavity is divided into ante-chamber and is communicated with described ante-chamber, described acoustical generator unit is located in described ante-chamber, it is characterized in that, described microphone device also comprises the sound absorption unit be installed in described back cavity, described sound absorption unit comprises the encapsulated layer of shell described in the shell with receiving space, the sound-absorbing material being filled in described receiving space and involution, and described shell is provided with multiple air-vent.
2. microphone device according to claim 1, is characterized in that, described multiple air-vent is that array is arranged.
3. microphone device according to claim 2, is characterized in that, described sound absorption unit and described acoustical generator unit interval are arranged, and described air-vent is arranged on the side of described shell near described acoustical generator unit.
4. microphone device according to claim 1, is characterized in that, described shell pressing and forming is in described back cavity, and described shell has the contour shape matched with described back cavity.
5. microphone device according to claim 1, is characterized in that, described housing comprises upper shell and lower house, and described upper shell and described lower house assembly form described cavity.
6. microphone device according to claim 5, is characterized in that, described sound absorption unit also comprises liner, and described liner is attached at the surface of described upper shell towards described lower house.
7. microphone device according to claim 6, is characterized in that, sound absorption unit also comprises adhesive tape, and described adhesive tape is located between described liner and described shell, and described shell is adhesively fixed by described adhesive tape and described liner.
8. microphone device according to claim 5, is characterized in that, the described upper shell position corresponding with described acoustical generator unit is provided with multiple phonate hole.
9. microphone device according to claim 1, is characterized in that, described microphone device comprises multiple described sound absorption unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572342.0U CN204929201U (en) | 2015-07-31 | 2015-07-31 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572342.0U CN204929201U (en) | 2015-07-31 | 2015-07-31 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929201U true CN204929201U (en) | 2015-12-30 |
Family
ID=54978294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520572342.0U Active CN204929201U (en) | 2015-07-31 | 2015-07-31 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204929201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454529A (en) * | 2017-09-08 | 2017-12-08 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| CN107682778A (en) * | 2017-09-08 | 2018-02-09 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| CN107948885A (en) * | 2017-11-22 | 2018-04-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
-
2015
- 2015-07-31 CN CN201520572342.0U patent/CN204929201U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454529A (en) * | 2017-09-08 | 2017-12-08 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| CN107682778A (en) * | 2017-09-08 | 2018-02-09 | 广东欧珀移动通信有限公司 | Electroacoustic device and mobile terminal |
| CN107682778B (en) * | 2017-09-08 | 2020-07-17 | Oppo广东移动通信有限公司 | Electroacoustic device and mobile terminal |
| CN107948885A (en) * | 2017-11-22 | 2018-04-20 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN107948885B (en) * | 2017-11-22 | 2020-10-23 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |