CN2854991Y - Vehicle handfree microphone - Google Patents
Vehicle handfree microphone Download PDFInfo
- Publication number
- CN2854991Y CN2854991Y CN 200520142875 CN200520142875U CN2854991Y CN 2854991 Y CN2854991 Y CN 2854991Y CN 200520142875 CN200520142875 CN 200520142875 CN 200520142875 U CN200520142875 U CN 200520142875U CN 2854991 Y CN2854991 Y CN 2854991Y
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- CN
- China
- Prior art keywords
- electret
- housing
- output line
- circuit board
- sound
- 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 - Lifetime
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Abstract
The utility model relates to a car hands-free microphone comprising housing and built-in electret, and circuit board and its output line. A meshed film is disposed a sound-receiving plane of the housing and fixed in the end surface of peripheral lateral walls of the housing. A cavity is disposed in the front of the electret. The surface of circuit board is vertical to a sound-receiving plane of the electret. The output line is parallel or vertical to the sound-receiving plane of the electret. Shield covers are disposed in the interior of the housing and meshed film respectively. The utility model has reasonable arrangement and is superior in good performances including conduction, reception and response of sound signal, prevention against dust and moisture and interference resistance. Additionally, the utility model is easy to install and safe and reliable for use and provides an approach to hands-free communication and voice operation and control in car.
Description
Technical field
The utility model relates to automotive interior equipment, relates to a kind of car handsfree microphone particularly.
Background technology
At present, the general vehicle hands-free microphone also has many and problem that will solve as audio frequency input/output unit commonly used, such as: the position of electret and direction, when voice signal directly imports electret into, easily electret is caused damage, and influence frequency response curve, so electret to be avoided directly importing into of acoustical signal; The and for example position of circuit board and output line thereof and direction, circuit board will be easy to install, and the circuit board good stability after the installation can not break away from housing, i.e. good integrity, safety, reliable and firmly; Simultaneously, circuit board is rationally distributed, and its output line does not take more space, and the layout of lead-in wire is also very crucial.In addition, car handsfree microphone ubiquity is dustproof fails effectively to solve with anti-interference problem.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, and a kind of voice signal response, dustproof and good in anti-interference performance are provided, and is easy to install and safe, reliable and shockproof car handsfree microphone.
The utility model car handsfree microphone comprises housing and built-in electret, circuit board and output line thereof, and nethike embrane is equipped with on the plane of housing reception sound, and nethike embrane is fixed on the end face of housing wall; The dead ahead of electret is provided with cavity, and it is vertical mutually that the plate face of circuit board and electret receive the plane of sound, the plane parallel of output line and electret reception sound or vertical; Be provided with radome in housing and the nethike embrane.
The utility model car handsfree microphone, wherein said circuit board is provided with signal converter, and the input of signal converter links to each other with output line with electret respectively with output.
The utility model car handsfree microphone, wherein said pad adopt colloid to be bonded on the end face of sidewall around the housing.
The utility model car handsfree microphone, wherein said output line adopts shielded type cable.
The utility model car handsfree microphone, wherein said radome adopt Copper Foil to make.
The utility model car handsfree microphone, wherein said radome replaces with the metal coating that is positioned at inner walls.
The utility model car handsfree microphone, wherein said housing are positioned at output line one side and are provided with inserted sheet.
The utility model car handsfree microphone is because rationally distributed, nethike embrane and radome have been adopted simultaneously, its beneficial technical effects is: voice signal conduction, receive and response, dustproof, protection against the tide and good in anti-interference performance, be easy to install and safety, reliable, for application such as automotive interior hand-free call, speech control and sound monitoring provide convenience, help the popularization and application on automobile.
Describe the technical scheme of the utility model car handsfree microphone in detail below in conjunction with embodiment.
Description of drawings
Fig. 1 is the structural representation of the utility model car handsfree microphone;
Fig. 2 is the cutaway view one of the utility model car handsfree microphone;
Fig. 3 is the cutaway view two of the utility model car handsfree microphone;
Fig. 4 is the system block diagram of the utility model car handsfree microphone;
Fig. 5 is the location drawing one of output line in the utility model car handsfree microphone;
Fig. 6 is the location drawing two of output line in the utility model car handsfree microphone.
Embodiment
With reference to Fig. 1-Fig. 3, the car handsfree microphone comprises housing 8 and built-in electret 1, circuit board 4 and output line 7 thereof, and housing 8 is positioned at output line 7 one sides and is provided with inserted sheet 5.Nethike embrane 2 is equipped with on the plane that housing 8 receives sound, and nethike embrane 2 is fixed on the end face of housing wall.Be provided with radome 3 in housing 8 and the nethike embrane 2, radome 3 adopts Copper Foil to make.The dead ahead of electret 1 is provided with cavity 10, and circuit board 4 places the groove 6 of housing 8 bottoms.
When voice signal directly imports electret into, easily electret is caused damage, and influence frequency response curve, therefore to avoid the electret acoustical signal directly to import into, so take the plane of housing 8 reception sound vertical mutually with the plane that electret 1 receives sound.Electret 1 is packed into behind the housing 8, and there is a cavity 10 in the dead ahead of electret 1, when sound imports into, imports electret 1 into after three faces reflections through cavity 10.Like this, the collection of signal is relatively more even, stable.
In the side of circuit board 4 with electret 1 welding, the diameter approximately equal of the width in the cross section of circuit board 4 and electret 1, circuit board 4 is vertical mutually with electret 1.Like this, circuit board 4 good stabilities that install can not break away from housing 8, and promptly good integrity is safe, reliable, shockproof.Simultaneously, also be easy to install, because circuit board 4 and housing 8 vertical installations cooperate than being easier to inserted sheet 5 again.
In order to make the rationally distributed of circuit, and output line does not take more space, so output line 7 is placed on the afterbody of circuit board 4, both be easy to install, helping output line 7 again draws from the bottom or the side of housing 8, adopt interference fit between wire harness and the shell aperture, guarantee that microphone can not pull circuit board in the assembling and dissembling process onboard.
The direction of soldered circuit board output line 7 has two kinds: with reference to Fig. 2 and Fig. 5, output line 7 and electret 1 receive the plane parallel of sound; With reference to Fig. 3 and Fig. 6, output line 7 is vertical with the plane that electret 1 receives sound, and lead-in wire is drawn from housing bottom or side.Output line 7 adopts shielded type cable.
With reference to Fig. 4, circuit board 4 is provided with signal converter, is used for the faint signal of telecommunication is amplified.The input of signal converter links to each other with electret 1, and its output links to each other with output line 7.
In other embodiment of the utility model car handsfree microphone, nethike embrane 2 peripheries can adopt colloid to be bonded on the end face of housing wall.Radome 3 can replace with the metal coating that is positioned at housing 8 inwalls.
Claims (7)
1. car handsfree microphone, comprise housing (8) and built-in electret (1), its output line of circuit board (4) (7), it is characterized in that: nethike embrane (2) is equipped with on the plane that described housing (8) receives sound, and described nethike embrane (2) is fixed on described housing (8) all around on the end face of sidewall; The dead ahead of described electret (1) is provided with cavity (10), described circuit board (4) places the groove (6) of described housing (8) bottom, it is vertical mutually that the plate face of described housing (8) and described electret (1) receive the plane of sound, and described output line (7) is positioned at the rear portion of described circuit board (4) and receives the plane parallel of sound or vertical with described electret (1); Be provided with radome (3) in described housing (8) and the described nethike embrane (2).
2. car handsfree microphone according to claim 1, it is characterized in that: wherein said circuit board (4) is provided with signal converter, the input of described signal converter links to each other with described electret (1), and the output of described signal converter links to each other with described output line (7).
3. according to claim 1 or 2 car handsfree microphones, it is characterized in that: wherein said nethike embrane (2) periphery adopts colloid to be bonded in described housing (8) all around on the end face of sidewall.
4. car handsfree microphone according to claim 3 is characterized in that: wherein said output line (7) adopts shielded type cable.
5. car handsfree microphone according to claim 4 is characterized in that: wherein said radome (2) adopts conductive foil to make.
6. car handsfree microphone according to claim 5 is characterized in that: wherein said radome (2) replaces with the metal coating that is positioned at described housing (8) inwall.
7. car handsfree microphone according to claim 6 is characterized in that: wherein said housing (8) is positioned at described output line (7) one sides and is provided with the inserted sheet of being convenient to assemble (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142875 CN2854991Y (en) | 2005-12-09 | 2005-12-09 | Vehicle handfree microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142875 CN2854991Y (en) | 2005-12-09 | 2005-12-09 | Vehicle handfree microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854991Y true CN2854991Y (en) | 2007-01-03 |
Family
ID=37581628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142875 Expired - Lifetime CN2854991Y (en) | 2005-12-09 | 2005-12-09 | Vehicle handfree microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854991Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7986800B2 (en) | 2007-02-20 | 2011-07-26 | Fortemedia, Inc. | Device with acoustic guard |
| CN102724612A (en) * | 2012-06-29 | 2012-10-10 | 北京德天泉机电设备有限公司 | Vehicle-mounted microphone with casing adopting bi-color injection molding |
| CN104427422A (en) * | 2013-09-03 | 2015-03-18 | 派卡阿库斯蒂克公司 | Electronic unit used for a microphone unit, the microphone unit, tool used for manufacturing the electronic unit and method for manufacturing the microphone unit |
| CN105554596A (en) * | 2016-02-02 | 2016-05-04 | 北京兴科迪科技有限公司 | Shell insertion sheet structure and vehicular microphone with shell insertion sheet structure |
| CN105681940A (en) * | 2016-02-02 | 2016-06-15 | 北京兴科迪科技有限公司 | Shell cavity structure and a vehicle-mounted microphone with shell cavity structure |
| CN109741558A (en) * | 2019-01-11 | 2019-05-10 | 重庆电子工程职业学院 | Warning device is used in a kind of identification of domestic intelligent |
-
2005
- 2005-12-09 CN CN 200520142875 patent/CN2854991Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7986800B2 (en) | 2007-02-20 | 2011-07-26 | Fortemedia, Inc. | Device with acoustic guard |
| CN101252791B (en) * | 2007-02-20 | 2012-06-20 | 美商富迪科技股份有限公司 | Device avoiding reflected sound wave interference |
| CN102724612A (en) * | 2012-06-29 | 2012-10-10 | 北京德天泉机电设备有限公司 | Vehicle-mounted microphone with casing adopting bi-color injection molding |
| CN102724612B (en) * | 2012-06-29 | 2014-11-12 | 北京兴科迪科技有限公司 | Vehicle-mounted microphone with casing adopting bi-color injection molding |
| CN104427422A (en) * | 2013-09-03 | 2015-03-18 | 派卡阿库斯蒂克公司 | Electronic unit used for a microphone unit, the microphone unit, tool used for manufacturing the electronic unit and method for manufacturing the microphone unit |
| CN104427422B (en) * | 2013-09-03 | 2018-04-17 | 派卡阿库斯蒂克公司 | For the electronic unit of microphone unit, microphone unit, the apparatus for manufacturing electronic unit and the method for manufacturing microphone unit |
| CN105554596A (en) * | 2016-02-02 | 2016-05-04 | 北京兴科迪科技有限公司 | Shell insertion sheet structure and vehicular microphone with shell insertion sheet structure |
| CN105681940A (en) * | 2016-02-02 | 2016-06-15 | 北京兴科迪科技有限公司 | Shell cavity structure and a vehicle-mounted microphone with shell cavity structure |
| CN105554596B (en) * | 2016-02-02 | 2019-02-05 | 北京兴科迪科技有限公司 | A kind of shell plate-inserting structure and the car microphone with shell plate-inserting structure |
| CN105681940B (en) * | 2016-02-02 | 2019-04-09 | 北京兴科迪科技有限公司 | A kind of housing hollow structure and the car microphone with housing hollow structure |
| CN109741558A (en) * | 2019-01-11 | 2019-05-10 | 重庆电子工程职业学院 | Warning device is used in a kind of identification of domestic intelligent |
| CN109741558B (en) * | 2019-01-11 | 2021-02-12 | 重庆电子工程职业学院 | Household intelligent recognition alarm device |
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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: 20070103 |
|
| EXPY | Termination of patent right or utility model |