CN204887450U - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN204887450U CN204887450U CN201520566786.3U CN201520566786U CN204887450U CN 204887450 U CN204887450 U CN 204887450U CN 201520566786 U CN201520566786 U CN 201520566786U CN 204887450 U CN204887450 U CN 204887450U
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- China
- Prior art keywords
- cavity
- microphone device
- composite webs
- sound absorption
- shell
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a sounding device, its including the casing that has a cavity with install in vocal ware unit on the casing, sounding device further including set up in sound absorption device in the cavity, the sound absorption device including have accommodating space the shell, fill in sound absorption powder and involution in the accommodating space the compound screen cloth of shell, compound screen cloth will sound absorption powder involution in in the accommodating space, compound screen cloth includes the dustproof screen cloth of one deck metal mesh and one deck. The utility model provides a sounding device low frequency performance is good and the 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.
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 and microphone device that reliability is high 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 comprises the sound absorber be arranged in described cavity further, described sound absorber comprises the shell with receiving space, the composite webs being filled in shell described in sound absorption powder in described receiving space and involution, described composite webs is by described sound absorption powder involution in described receiving space, and described composite webs comprises layer of metal net and the dust-proof screen cloth of one deck.
Preferably, described shell pressing and forming is in described cavity, and described shell has the contour shape matched with described cavity.
Preferably, described shell is fixed by adhesive tape and described case bonding.
A kind of microphone device, it comprises the housing with cavity and the acoustical generator unit be installed on described housing, described microphone device comprises further and is filled in the composite webs that sound absorption powder in described cavity and the described sound absorption powder of isolation enter described acoustical generator unit, and described composite webs comprises layer of metal net and the dust-proof screen cloth of one deck.
Preferably, described cavity is separated into ante-chamber and the back cavity relative with described ante-chamber by described composite webs, and described acoustical generator unit is arranged in described ante-chamber, and described sound absorption powder packed is in described back cavity.
Preferably, described housing is provided with the extension extended in cavity, and described composite webs is combined in described extension.
Preferably, described acoustical generator unit is provided with the perforate communicated with described cavity, and described composite webs is attached at described perforate.
The utility model has the following advantages: the microphone device low frequency performance that the utility model provides is good and reliability is high.
[accompanying drawing explanation]
The structural representation of the microphone device that Fig. 1 provides for the utility model;
The structural representation of the composite webs of the microphone device that Fig. 2 provides for the utility model;
The structural representation of the another kind of microphone device that Fig. 3 provides for the utility model;
The structural representation of the third microphone device that Fig. 4 provides for the utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figure 1, for the microphone device 100 that the utility model provides, it comprises the housing 1 with cavity 10 and the sound absorber 3 being installed on the acoustical generator unit 2 on housing 1 and being arranged in cavity 10, sound absorber 3 comprises the shell 31 with receiving space 310, the composite webs 33 being filled in sound absorption powder 32 in receiving space 310 and involution shell 31, and composite webs 33 will absorb sound powder 32 involution in receiving space 310.In the lump with reference to Fig. 2, composite webs 33 comprises layer of metal net 33a and the dust-proof screen cloth 33b of one deck, and composite webs 33 is not limited to the concrete form shown in Fig. 2, also can be the top that dust-proof screen cloth 33b is compound in wire netting 33a.Certainly, composite webs 33 is also not limited to the form of the dust-proof screen cloth 33b of layer of metal net 33a compound one deck.
Composite webs 33 can adopt hot melt pressing mode or laser welding mode or ultrasonic bonding mode to be combined in shell 31.Certainly, the mode that composite webs 33 is combined in 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.
The direct pressing and forming of shell 31 is in cavity 10, shell 31 has the contour shape matched with cavity 10, shell 31 can be made so well to adapt to the cavity 10 of complicated shape, thus ensure that the filling total amount of sound absorption powder 32 in shell 31 maximizes, in addition, shell 31 by adhesive tape 4 and housing 1 be adhesively fixed shell 31 is installed stablize firm.
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 33a can play and support and moulding effect, the less effect can playing encapsulation sound-absorbing powder 32 of dust-proof screen cloth 33b percent opening, thus makes the more not at all easy breakage of composite webs 33 intensity and distortion, and reliability is high.
As shown in Figure 3, for the another kind of microphone device 200 that the utility model provides, it comprises the housing 5 with cavity 50 and the sound absorption powder 8 being installed on the acoustical generator unit 6 on housing 5 and be filled in cavity 50 and isolates the composite webs 7 that sound absorption powder 8 enters acoustical generator unit 6, composite webs 7 comprises layer of metal net and the dust-proof screen cloth of one deck, and composite webs 7 has identical structure with aforesaid composite webs 33.
In the present embodiment, cavity 50 is separated into ante-chamber 51 and the back cavity 52 relative with ante-chamber 51 by composite webs 7, and acoustical generator unit 6 is arranged in ante-chamber 51, and sound absorption powder 8 is filled in back cavity 52.
Housing 5 is provided with the extension 5a extended in cavity 50, and composite webs 7 is combined in extension 5a.Extension 5a be arranged so that composite webs 7 is combined in housing 5 time location more accurately, convenient.
Composite webs 7 can adopt hot melt pressing mode or laser welding mode or ultrasonic bonding mode to be combined in extension 5a.Certainly, the mode that composite webs 7 is combined in extension 5a does not limit to above-mentioned 3 kinds of modes, also can be beat glue, as long as or other can be bonding mode.
Be provided with the sound absorption powder 8 compensating air pressure in the back cavity 52 of microphone device 200, reduce the resonance frequency of back cavity 52, promote LF-response, play the effect being similar to and expanding back cavity 52, improve low frequency performance.Wire netting can play and support and moulding effect, the less effect can playing package isolation sound-absorbing powder 8 of dust-proof screen cloth percent opening, thus makes the more not at all easy breakage of composite webs 7 intensity and distortion, and reliability is high.
As shown in Figure 4, for the third microphone device 300 that the utility model provides, it comprises the housing 5 with cavity 50 and the sound absorption powder 8 being installed on the acoustical generator unit 6 on housing 5 and be filled in cavity 50 and isolates the composite webs 7 that sound absorption powder 8 enters acoustical generator unit 6, composite webs 7 comprises layer of metal net and the dust-proof screen cloth of one deck, and composite webs 7 has identical structure with aforesaid composite webs 33.
Acoustical generator unit 6 is provided with the perforate 60 communicated with cavity 50, and composite webs 7 is attached at perforate 60.Such sound absorption powder 8 can fill the filling total amount of have one's bosom filled with body 50 thus increase sound absorption powder 8, in other words, cavity 50 is except the space that acoustical generator unit 6 occupies, remainder all fills sound absorption powder 8, and sound absorption powder 8 can be isolated in cavity 50 by composite webs 7, avoids entering into acoustical generator unit 6.
Be provided with the sound absorption powder 8 compensating air pressure in the cavity 50 of microphone device 300, reduce the resonance frequency of cavity 50, promote LF-response, play the effect being similar to enlarged cavities 50, improve low frequency performance.Wire netting can play and support and moulding effect, the less effect can playing isolation sound-absorbing powder 8 of dust-proof screen cloth percent opening, thus makes the more not at all easy breakage of composite webs 7 intensity and distortion, and reliability is high.
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 (7)
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 comprises the sound absorber be arranged in described cavity further, described sound absorber comprises the shell with receiving space, the composite webs being filled in shell described in sound absorption powder in described receiving space and involution, described composite webs is by described sound absorption powder involution in described receiving space, and described composite webs comprises layer of metal net and the dust-proof screen cloth of one deck.
2. microphone device according to claim 1, is characterized in that: described shell pressing and forming is in described cavity, and described shell has the contour shape matched with described cavity.
3. microphone device according to claim 1, is characterized in that: described shell is fixed by adhesive tape and described case bonding.
4. 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 comprises further and is filled in the composite webs that sound absorption powder in described cavity and the described sound absorption powder of isolation enter described acoustical generator unit, and described composite webs comprises layer of metal net and the dust-proof screen cloth of one deck.
5. microphone device according to claim 4, is characterized in that: described cavity is separated into ante-chamber and the back cavity relative with described ante-chamber by described composite webs, and described acoustical generator unit is arranged in described ante-chamber, and described sound absorption powder packed is in described back cavity.
6. microphone device according to claim 5, is characterized in that: described housing is provided with the extension extended in cavity, and described composite webs is combined in described extension.
7. microphone device according to claim 4, is characterized in that: described acoustical generator unit is provided with the perforate communicated with described cavity, and described composite webs is attached at described perforate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520566786.3U CN204887450U (en) | 2015-07-31 | 2015-07-31 | Sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520566786.3U CN204887450U (en) | 2015-07-31 | 2015-07-31 | Sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204887450U true CN204887450U (en) | 2015-12-16 |
Family
ID=54831768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520566786.3U Active CN204887450U (en) | 2015-07-31 | 2015-07-31 | Sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204887450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| TWI817596B (en) * | 2016-11-23 | 2023-10-01 | 中國大陸商鎮江貝斯特新材料有限公司 | Integrated loudspeaker device having an acoustic chamber containing sound adsorber material |
-
2015
- 2015-07-31 CN CN201520566786.3U patent/CN204887450U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI817596B (en) * | 2016-11-23 | 2023-10-01 | 中國大陸商鎮江貝斯特新材料有限公司 | Integrated loudspeaker device having an acoustic chamber containing sound adsorber material |
| 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 |
| US12035102B2 (en) | 2019-12-19 | 2024-07-09 | Goertek Inc. | Sound absorbing material encapsulation structure for sound production device, and sound production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |