CN201479339U - Microphone wind-noise reduction installation device - Google Patents
Microphone wind-noise reduction installation device Download PDFInfo
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- CN201479339U CN201479339U CN2009202249672U CN200920224967U CN201479339U CN 201479339 U CN201479339 U CN 201479339U CN 2009202249672 U CN2009202249672 U CN 2009202249672U CN 200920224967 U CN200920224967 U CN 200920224967U CN 201479339 U CN201479339 U CN 201479339U
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- making
- positioning tube
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Abstract
The utility model discloses a microphone wind-noise reduction installation device, which is arranged between a unidirectional microphone and an electronic product, and comprises a positioning cylinder which is installed inside an electronic product shell and a microphone substrate, wherein the unidirectional microphone is installed on the microphone substrate, a front sound inlet hole and a rear sound inlet hole which are arranged on the electronic product shell on the opening end of the positioning cylinder are plugged, a porous denoising device is installed on two ends of an inner cavity of the positioning cylinder, and a signal line leading-wire passage is arranged between the unidirectional microphone and the electronic product. The porous denoising device can eliminate the influence of the wind noise during the application of the electronic product, and by adopting the microphone substrate to fix the unidirectional microphone, the sound inlet point is still arranged no a fixed position in front of and behind the unidirectional microphone; and the positioning cylinder also can play the role in isolating the sound while having the positioning effect, so not only the wind noise can be reduced, but also the sensitivity effect is free from being influenced.
Description
Technical field
The utility model relates to a kind ofly can reduce the uni-directional microphone mounting structure that wind is made an uproar.
Background technology
To make an uproar be to influence user's principal element used in everyday to the wind of uni-directional microphone in electronic products such as earphone and bluetooth earphone, at present the common wind scheme of making an uproar of falling mainly contains: the DSP algorithm, fall wind make an uproar material, the wind structure etc. of making an uproar is fallen, but these several schemes all have some corresponding weak points.As adopt DSP algorithm noise reduction can influence tonequality, and increase cost.It is also bigger for the influence of earphone outward appearance to take to fall the wind material of making an uproar, and many times is difficult to reach gratifying effect.Falling the wind structure of making an uproar often has the requirement of comparison strictness for physical dimension and specification, much all can't be applied on the portable set because structure and specification is big.
It mainly is by three kinds of reasons that wind noise forms: 1, the wind eddy current crack that (as the corner, surface etc.) produces around equipment; 2, wind vibration that equipment itself is produced imports MIC and the noise that produces; 3, wind is at the eddy current crack of MIC tone-entering hole place generation.Wherein first kind of noise mainly is to lean on the airflow design of equipment itself to reduce generating noise, as allow equipment corner transition slyness etc. as far as possible; Second kind of noise can improve by the buffering that increases between MIC gum cover and the housing; The third noise is the most scabrous problem at present.Because in general if improve wind and make an uproar, just remove to reduce the noise that wind produces at the MIC tone-entering hole as far as possible, and the design of tone-entering hole is difficult to fundamentally to address this problem, so this falls the bottleneck that wind is made an uproar often, and most of patents are all at this problem design.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, can not influence uni-directional microphone the microphone of intrinsic directive property advantage the wind erecting device of making an uproar falls.
For solving the problems of the technologies described above, the technical solution of the utility model is: the wind erecting device of making an uproar falls in microphone, be arranged between uni-directional microphone and the electronic product, and: comprise the positioning tube that is installed in the electronic product casing, the microphone pedestal is installed in the described positioning tube, on the described microphone pedestal uni-directional microphone is installed, the openend of the described positioning tube of housing shutoff of described electronic product, sound hole and back sound hole before the described electronic product casing of the described positioning tube openend of shutoff is provided with, the two ends of described positioning tube inner chamber are equipped with the porous denoising device; Be provided with the signal line leads passage between described uni-directional microphone and the described electronic product.
As a kind of optimized technical scheme, described microphone pedestal is the tubular plastics gum cover that TPE flexible glue plastics are made.
As a kind of improvement of technique scheme, described porous denoising device is the porous plastics body.
As further improvement in the technical proposal, the hole of described porous plastics body is 30um-65um, porosity 40%, density 0.4-0.8g/cm3, toughness 3-7N/m
2
As further improvement in the technical proposal, described porous plastics body extends and is filled in the preceding sound hole and back sound hole on the described electronic product casing.
As further improving again of technique scheme, described positioning tube is the tubular plastic bushing that sets in advance in described electronic product inside.
As the further improvement of technique scheme, described signal line leads passage comprises the lead-in wire groove that is arranged on the described microphone pedestal, the fairlead that is arranged on the described positioning tube and extends along described lead-in wire groove.
As the further improvement of technique scheme, described signal line leads is passed through some glue sealing and fixing in described lead-in wire groove.
Owing to adopted technique scheme, the wind erecting device of making an uproar falls in microphone, be arranged between uni-directional microphone and the electronic product, and: comprise the positioning tube that is installed in the electronic product casing, the microphone pedestal is installed in the described positioning tube, on the described microphone pedestal uni-directional microphone is installed, the openend of the described positioning tube of housing shutoff of described electronic product, sound hole and back sound hole before the described electronic product casing of the described positioning tube openend of shutoff is provided with, the two ends of described positioning tube inner chamber are equipped with the porous denoising device; Be provided with the signal line leads passage between described uni-directional microphone and the described electronic product; The beneficial effects of the utility model are: utilize the porous denoising device can eliminate the electronic product wind influence of making an uproar in use, and the fixing microphone of the microphone pedestal that partly adopts tubular structure at microphone, make sound hole, microphone front and back subtend fore-and-aft direction still, can guarantee that so into sound is put the position of still fixing in front and back; Positioning tube can also play the effect of isolates sound except the effect that reaches the location, therefore sensitivity of microphone can not change substantially, thereby reached and promptly reduced wind and make an uproar, do not influenced the effect of sensitivity again, under the prerequisite of not losing speech sensitivity, provide and fall the wind value of making an uproar more than the 10dB.
Description of drawings
Fig. 1 is the user mode schematic diagram of the utility model embodiment;
Fig. 2 is the structural representation of utility model embodiment, also is the partial enlarged drawing of the utility model embodiment installation place among Fig. 1, and the direction that arrow is represented among the figure is the direction that sound imports.
Fig. 3 is the structural representation of the utility model microphone pedestal.
Embodiment
Present embodiment falls the wind erecting device of making an uproar with microphone and is installed in the bluetooth earphone and sets forth its structure and function for example.
As Fig. 1, Fig. 2 and shown in Figure 3, bluetooth earphone of the present utility model is installed, comprise earphone case 1, on the described earphone case 1 earplug 2 is installed, in the described earphone case 1 uni-directional microphone 3 is installed, uni-directional microphone 3 is installed in the inside, lower end of earphone case 1, also be provided with the preceding sound hole 101 and the back sound hole 102 that are used to transmit voice signal on the described earphone case 1, the direction of preceding sound hole 101 and back sound hole 102 is consistent with the sound hole transmission direction on the uni-directional microphone 3, thereby guarantees the unidirectivity of earphone.
In described earphone case 1, positioning tube 5 is installed, described positioning tube 5 is for setting in advance the plastic bushing in described earphone case 1 inside, plastic bushing plays the effect of sound insulation and location, has guaranteed that effectively voice signal imports uni-directional microphone 3 through preceding sound hole 101 and back sound hole 102.
In the described positioning tube 5 microphone pedestal 4 is installed, on the described microphone pedestal 4 uni-directional microphone 3 is installed, described microphone pedestal 4 both ends opens with preceding sound hole, the sound hole, back that guarantees that described microphone pedestal 4 can shutoff microphone 3, are convenient to importing into of voice signal.Owing to have nothing in common with each other in the preceding sound Kong Yuhou sound hole site of different uni-directional microphones 3, therefore, should be noted that sound hole site design microphone pedestal 4 specifications according to uni-directional microphone 3.The effect of microphone pedestal 4 is protection uni-directional microphones 3; reduce the vibrations generating noise as far as possible; assurance has stable received signal; the microphone pedestal 4 of present embodiment is set to the tubular plastics gum cover that TPE flexible glue plastics are made; TPE is known flexible glue plastics; full name is a thermoplastic elastomer (TPE), also claims TPR.Simultaneously, because microphone pedestal 4 itself also needs to play the function of location uni-directional microphone 3, therefore can not adopt the too big material of hardness, in addition, microphone pedestal 4 itself also can provide the function of sound insulation, add the effect of positioning tube 5, make the location of one-way microphone 3 more firm, the voice signal that it is received is more accurate.
The openend of the described positioning tube 5 of described earphone case 1 shutoff, the two ends of described positioning tube 5 inner chambers are equipped with the porous denoising device, specifically the porous denoising device is filled in the space that the two ends of described positioning tube 5 inner chambers and earphone case 1 and uni-directional microphone 3 and microphone pedestal 4 surround, and extend in the preceding sound hole 101 and back sound hole 102 on the described earphone case 1, reduce the effect that wind is made an uproar thereby play; Described porous denoising device is the porous plastics body, and the porous plastics body of present embodiment is set to porous plastics, and porous plastic materials is generally by making the direct high temperature pressing of plastic powders.Therefore the diameter of the material of the porous plastic materials that adopts and corresponding performance and plastic grain all can and fall the wind effect of making an uproar to directive property obvious influence, the hole of the porous plastic materials that adopts in the present embodiment is 30um-65um, porosity 40%, density 0.4-0.8g/cm3, toughness 5N/m
2, can under the prerequisite that does not influence earphone directive property, reduce wind and make an uproar.Because preceding sound hole 101 and the porous plastic materials at sound hole 102 places, back and the surface combination of earphone case 1 at earphone case 1, therefore in order to reduce at junction turbulization noise as far as possible, necessarily require the seamless and concordant combination of trying one's best of porous plastic materials and earphone case 1 surface.Can certainly be set to the porous plastics body that other porous materials such as sponge are made.
Also be provided with the signal line leads passage between described uni-directional microphone 3 and the described earphone case 1, described signal line leads passage comprises the lead-in wire groove 41 that is arranged on the described microphone pedestal 4, and the fairlead 11 that is arranged on the described positioning tube 5 and extends along described lead-in wire groove 41, the signal line leads 12 of uni-directional microphone 3 is passed lead-in wire groove 41 and is electrically connected wiring board 8 and the power supply 9 that is arranged in the earphone case 1 with fairlead 11 on the positioning tube 5, and described signal line leads 12 sealing and fixing are in described lead-in wire groove 41, prevented to produce other the point that advances, present embodiment is to utilize some glue sealing and fixing signal line leads 12, thereby avoid producing tangible sound travel phenomenon, the ground lead-in wire point of uni-directional microphone 3 in earphone case 1 also should be noted that its sealing.
The utility model not only can be applied in the bluetooth earphone; in some common earphones or other electronic products, also can use; the scope of application of the present utility model is that the technical staff is known in the present technique field; use in the different electronic products does not influence protection range of the present utility model.
Claims (8)
1. the wind erecting device of making an uproar falls in microphone, be arranged between uni-directional microphone and the electronic product, it is characterized in that: comprise the positioning tube that is installed in the electronic product casing, the microphone pedestal is installed in the described positioning tube, on the described microphone pedestal uni-directional microphone is installed, the openend of the described positioning tube of housing shutoff of described electronic product, sound hole and back sound hole before the described electronic product casing of the described positioning tube openend of shutoff is provided with, the two ends of described positioning tube inner chamber are equipped with the porous denoising device; Be provided with the signal line leads passage between described uni-directional microphone and the described electronic product.
2. the wind erecting device of making an uproar falls in microphone as claimed in claim 1, and it is characterized in that: described microphone pedestal is the tubular plastics gum cover that TPE flexible glue plastics are made.
3. the wind erecting device of making an uproar falls in microphone as claimed in claim 1, and it is characterized in that: described porous denoising device is the porous plastics body.
4. the wind erecting device of making an uproar falls in microphone as claimed in claim 3, and it is characterized in that: the hole of described porous plastics body is 30um-65um, porosity 40%, density 0.4-0.8g/cm3, toughness 3-7N/m
2
5. the wind erecting device of making an uproar falls in microphone as claimed in claim 3, it is characterized in that: described porous plastics body extends and is filled in the preceding sound hole and back sound hole on the described electronic product casing.
6. the wind erecting device of making an uproar falls in microphone as claimed in claim 1, and it is characterized in that: described positioning tube is the tubular plastic bushing that sets in advance in described electronic product inside.
7. as the described microphone of the arbitrary claim of claim 1 to 6 the wind erecting device of making an uproar falls, it is characterized in that: described signal line leads passage comprises the lead-in wire groove that is arranged on the described microphone pedestal, the fairlead that is arranged on the described positioning tube and extends along described lead-in wire groove.
8. the wind erecting device of making an uproar falls in microphone as claimed in claim 7, it is characterized in that: described signal line leads by some glue sealing and fixing in described lead-in wire groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202249672U CN201479339U (en) | 2009-08-18 | 2009-08-18 | Microphone wind-noise reduction installation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202249672U CN201479339U (en) | 2009-08-18 | 2009-08-18 | Microphone wind-noise reduction installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479339U true CN201479339U (en) | 2010-05-19 |
Family
ID=42415594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202249672U Expired - Lifetime CN201479339U (en) | 2009-08-18 | 2009-08-18 | Microphone wind-noise reduction installation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479339U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404656A (en) * | 2010-09-16 | 2012-04-04 | 潍坊歌尔电子有限公司 | Blind hole type microphone |
| WO2013131366A1 (en) * | 2012-03-07 | 2013-09-12 | 福兴达科技实业（深圳）有限公司 | Wind noise reduction apparatus of microphone |
| CN105959837A (en) * | 2016-05-30 | 2016-09-21 | 歌尔股份有限公司 | Wind noise prevention microphone and earphone line control device |
| CN106602676A (en) * | 2017-02-21 | 2017-04-26 | 广东小天才科技有限公司 | Portable power supply device having sound-absorbing function |
| CN109600692A (en) * | 2017-09-30 | 2019-04-09 | 山东共达电声股份有限公司 | A kind of noise-eliminating earphone |
-
2009
- 2009-08-18 CN CN2009202249672U patent/CN201479339U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404656A (en) * | 2010-09-16 | 2012-04-04 | 潍坊歌尔电子有限公司 | Blind hole type microphone |
| CN102404656B (en) * | 2010-09-16 | 2016-01-20 | 潍坊歌尔电子有限公司 | Blind-hole-type microphone |
| WO2013131366A1 (en) * | 2012-03-07 | 2013-09-12 | 福兴达科技实业（深圳）有限公司 | Wind noise reduction apparatus of microphone |
| CN105959837A (en) * | 2016-05-30 | 2016-09-21 | 歌尔股份有限公司 | Wind noise prevention microphone and earphone line control device |
| CN106602676A (en) * | 2017-02-21 | 2017-04-26 | 广东小天才科技有限公司 | Portable power supply device having sound-absorbing function |
| CN109600692A (en) * | 2017-09-30 | 2019-04-09 | 山东共达电声股份有限公司 | A kind of noise-eliminating earphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |