CN108632691A - A kind of antistatic microphone - Google Patents

A kind of antistatic microphone Download PDF

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Publication number
CN108632691A
CN108632691A CN201710930571.9A CN201710930571A CN108632691A CN 108632691 A CN108632691 A CN 108632691A CN 201710930571 A CN201710930571 A CN 201710930571A CN 108632691 A CN108632691 A CN 108632691A
Authority
CN
China
Prior art keywords
transmission line
antistatic
electrostatic
gooseneck
audio transmission
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.)
Pending
Application number
CN201710930571.9A
Other languages
Chinese (zh)
Inventor
彭宇龙
李文杰
韩杰
王艳辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Visionvera International Information Technology Co Ltd
Original Assignee
Beijing Visionvera International Information Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Visionvera International Information Technology Co Ltd filed Critical Beijing Visionvera International Information Technology Co Ltd
Priority to CN201710930571.9A priority Critical patent/CN108632691A/en
Publication of CN108632691A publication Critical patent/CN108632691A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/08Mouthpieces; Microphones; Attachments therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00Details of connection covered by H04R, not provided for in its groups
    • H04R2420/03Connection circuits to selectively connect loudspeakers or headphones to amplifiers

Abstract

The present invention provides a kind of antistatic microphones, including wheat head, pedestal and the gooseneck for connecting wheat head and pedestal;It is provided through audio transmission line inside the gooseneck, one end of the audio transmission line is electrically connected with wheat head, the circuit board electrical connection of the other end and the pedestal is provided with anti-static circuit on the circuit board, and the electrostatic come to audio transmission line transmission is released.Anti-static circuit is set on the circuit board of microphone base plate, the electrostatic from audio transmission line can be released, be efficiently avoided electrostatic and audio signal is impacted, is also possible to prevent electrostatic and the rear end equipment of microphone is damaged.

Description

A kind of antistatic microphone
Technical field
The present invention relates to audio mining technique fields, more particularly to a kind of antistatic microphone.
Background technology
Gooseneck type microphone is a kind of microphone widely used in various meetings, but due to physical activity, unavoidably Electrostatic is will produce, especially under dry environment, it is easier to generate electrostatic, human body can incite somebody to action oneself when contacting microphone at this time The electrostatic of body passes to microphone.
In general, human body generates the ranging from 2-5KV of electrostatic, and so high voltage can be to the audio collection circuit of microphone It affects, in some instances it may even be possible to electrostatic be transmitted to the audio frequency apparatus of microphone rear end, and then audio frequency apparatus is caused to damage It is bad.In addition, if in a meeting, the problem of electrostatic causes, may be such that meeting interrupts, and seriously affect being smoothed out for meeting.
The design of Gooseneck type microphone in the prior art usually not antistatic, relies primarily on the audio of microphone rear end The anti-static function of equipment itself carries out Electro-static Driven Comb, but antistatic electricity that the audio frequency apparatus of rear end is not generally also special Road, directly accesses rear end audio frequency apparatus by microphone, and electrostatic may lead to the badly damaged of rear end equipment.
Invention content
An embodiment of the present invention provides a kind of antistatic microphones, are caused to audio collection with solving electrostatic in the prior art The problem of influencing and rear end equipment is damaged.
To solve the above-mentioned problems, the invention discloses a kind of side's electrostatic microphone, including wheat head, pedestal with connect wheat head With the gooseneck of pedestal;
Audio transmission line is provided through inside the gooseneck, one end of the audio transmission line is electrically connected with wheat head It connects, the circuit board electrical connection of the other end and the pedestal is provided with anti-static circuit on the circuit board, is passed to the audio The electrostatic that defeated line transmission comes is released.
Optionally, Acquisition Circuit is additionally provided on the circuit board, the Acquisition Circuit includes acquisition module, described to adopt The first end of collection module is electrically connected with the audio transmission line, and the second end of the acquisition module and the interface of the pedestal are electrically connected It connects.
Optionally, the anti-static circuit includes electrostatic leakage module, the first end of the electrostatic leakage module with it is described The interface of pedestal is electrically connected, and the second end ground connection of the electrostatic leakage module, the electrostatic transmitted to the Acquisition Circuit is let out It puts.
Optionally, the electrostatic leakage module includes a Transient Suppression Diode, the cathode of the Transient Suppression Diode It is electrically connected with the interface of the pedestal, the plus earth of the Transient Suppression Diode.
Optionally, the acquisition module includes the first capacitance, the second capacitance, first resistor, second resistance and first node, The first end of first capacitance is connect with the audio transmission line, the second end of first capacitance, second capacitance First end, the first end of the first end of the first resistor and the second resistance are connected at the first node, and described the The second end of two capacitances and the second end of the first resistor are grounded, and the second end of the second resistance inhibits with the transient state The cathode of diode connects.
Optionally, megohmite insulant is filled with inside the gooseneck, shell and the audio transmission for the gooseneck The isolation of line.
Optionally, the megohmite insulant is epoxy resin.
Optionally, the internal diameter of the gooseneck is 5~7mm, and the outer diameter of the gooseneck is 6~9mm, and the length of the gooseneck is 150~200mm.
Optionally, the audio transmission line has two, respectively left channel audio transmission line and right audio channel transmission line.
Compared with prior art, the present invention has the following advantages:
Anti-static circuit is set on the circuit board of microphone base plate, the electrostatic from audio transmission line can be let out It puts, efficiently avoids electrostatic and audio signal is impacted, be also possible to prevent electrostatic and the rear end equipment of microphone is caused to damage It is bad.
Description of the drawings
Fig. 1 is a kind of microphone structure schematic diagram of the embodiment of the present invention;
Fig. 2 is a kind of circuit diagram of the embodiment of the present invention being located on microphone circuit plate;
Fig. 3 is another circuit diagram of the embodiment of the present invention being located on microphone circuit plate;
Fig. 4 is another microphone structure schematic diagram of the embodiment of the present invention;
Fig. 5 is the portions the A enlarged diagram of Fig. 4.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is described in further detail.
Embodiment one
Referring to Fig.1, it is the antistatic microphone structure schematic diagram, which includes wheat head 2, pedestal 3 and connection wheat head 2 With the gooseneck 1 of pedestal 3;Audio transmission line 11, one end and 2 electricity of wheat head of audio transmission line 11 are provided through inside gooseneck 1 Connection, the circuit board electrical connection of the other end and pedestal 3 is provided with anti-static circuit on the circuit board of pedestal 3, when there is electrostatic biography When to microphone, electrostatic reaches anti-static circuit along audio transmission line 11, by electrostatic leakage.
With reference to shown in Fig. 2, for a kind of circuit diagram on foregoing circuit plate, acquisition electricity is additionally provided on foregoing circuit plate Road is acquired for the audio to microphone, which includes acquisition module 31, the first end of acquisition module 31 and wheat Audio transmission line 11 in gram wind gooseneck 1 is electrically connected, and second end is electrically connected with the interface 33 on pedestal 3, which has Body can be a card agriculture interface, and microphone is facilitated to be connect with rear end equipment.
Anti-static circuit specifically includes electrostatic leakage module 32, first end and the microphone base plate 3 of electrostatic leakage module 32 Interface 33 be electrically connected, second end ground connection, the electrostatic that can transmit Acquisition Circuit is released, in this way, in audio signal transmission To before interface 33, by electrostatic leakage module 32, the electrostatic being entrained in audio signal can be released, prevent its right The rear end equipment being connected with interface 33 impacts.
It can be seen from the above content that the embodiment of the present invention includes following advantages:
Anti-static circuit is set on the circuit board of microphone base plate, in this way, when electrostatic reaches microphone, along tone frequency channel wire It is transmitted with Acquisition Circuit, electrostatic can be efficiently avoided electrostatic leakage and believe audio by being finally transmitted to anti-static circuit It number impacts, is also possible to prevent electrostatic and the rear end equipment of microphone is damaged.
Embodiment two
It is another circuit diagram of the embodiment of the present invention being located on microphone circuit plate, in conjunction with Fig. 3 with reference to shown in Fig. 3 It elaborates to the particular circuit configurations of the embodiment of the present invention.
Electrostatic leakage module 32 includes a Transient Suppression Diode TVS, cathode and the pedestal 3 of Transient Suppression Diode TVS Interface 33 be electrically connected, plus earth can be by the electrostatic leakage from acquisition module 31 to greatly.
Acquisition module 31 includes the first capacitance C1, the second capacitance C2, first resistor R1, second resistance R2 and first node P, The first end of first capacitance C1 is connect with audio transmission line 11, the second end of the first capacitance C1, the first end of the second capacitance C2, The first end of one resistance R1 and the first end of second resistance R2 are connected to first node P at, the second end of the second capacitance C2 and the The second end of one resistance R1 is grounded, and the second end of second resistance R2 is connect with the cathode of Transient Suppression Diode TVS.
The audio signal entered in microphone is transmitted along audio transmission line 11, after being transmitted to acquisition module 31, through first Capacitance C1 is filtered, and the flip-flop of audio signal carries out impedance matching, then pass through through the second capacitance C2, first resistor R1 Second resistance R2 is crossed so that the audio signal of transmission matches with rear end equipment.When in the audio signal of transmission doped with electrostatic When, the electric current of audio signal is larger, when by being arranged in the Transient Suppression Diode TVS of the rear ends second resistance R2, makes transient state Inhibit the conducting of diode TVS reverse phases, by current drain to greatly, meanwhile, utilize the clamper electricity of Transient Suppression Diode TVS itself Pressure, it is ensured that normal audio signal passes through, and final audio signal can smoothly be transmitted to rear end equipment by interface 33.
It can be seen from the above content that the embodiment of the present invention includes following advantages:
Anti-static circuit is set on the circuit board of microphone base plate, in this way, when electrostatic reaches microphone, along tone frequency channel wire It is transmitted with Acquisition Circuit, electrostatic can be efficiently avoided electrostatic leakage and believe audio by being finally transmitted to anti-static circuit It number impacts, is also possible to prevent electrostatic and the rear end equipment of microphone is damaged.
Embodiment three
It is another microphone structure schematic diagram of the embodiment of the present invention with reference to Fig. 4 and Fig. 5, Fig. 4, Fig. 5 is the portions A of Fig. 4 The circuit structure of enlarged diagram, the microphone of the embodiment is identical as above-mentioned two embodiment, and details are not described herein, only introduces The difference of itself and above-described embodiment.
The microphone includes wheat head 2, pedestal 3 and the gooseneck 1 for connecting wheat head 2 and pedestal 3.Run through in the inside of gooseneck 1 and sets It is equipped with audio transmission line 11, one end of audio transmission line 11 is electrically connected with wheat head 2, the circuit board electrical connection of the other end and pedestal 3.
It is filled with megohmite insulant 12 in the inside of gooseneck 1, for being isolated the shell of gooseneck 1 and audio transmission line.Absolutely Edge substance 12 is specifically as follows epoxy resin, can also be other insulating materials.
The internal diameter of gooseneck 11 is 5~7mm, and outer diameter is 6~9mm, and length is 150~200mm, and occupied space is smaller, convenient Meeting uses.
It is understood that the audio transmission line 11 in microphone has two, respectively left channel audio transmission line and the right side Channel audio transmission line, two audio transmission lines and each circuit being attached thereto are identical setting.
Further include following advantages it can be seen from the above content that other than the embodiment of the present invention is in addition to above-described embodiment the advantages of:
Megohmite insulant is filled in gooseneck, the shell of gooseneck is made to be isolated with audio transmission line, in source to microphone First of protection is carried out, prevents electrostatic to be transmitted to audio transmission line, has completely cut off a part of electrostatic, remaining electrostatic can be by follow-up Anti-static circuit release to greatly, efficiently avoiding electrostatic audio signal impacted, be also possible to prevent electrostatic to wheat The rear end equipment of gram wind damages.
A kind of antistatic microphone provided by the present invention is described in detail above, it is used herein specifically a Principle and implementation of the present invention are described for example, and the explanation of above example is only intended to help to understand the present invention's Method and its core concept;Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, in specific embodiment party There will be changes in formula and application range, in conclusion the content of the present specification should not be construed as limiting the invention.

Claims (9)

1. a kind of antistatic microphone, which is characterized in that including wheat head, pedestal and the gooseneck for connecting wheat head and pedestal;
Audio transmission line is provided through inside the gooseneck, one end of the audio transmission line is electrically connected with wheat head, separately The circuit board electrical connection of one end and the pedestal is provided with anti-static circuit on the circuit board, to the audio transmission line The electrostatic that transmission comes is released.
2. antistatic microphone according to claim 1, which is characterized in that be additionally provided with acquisition electricity on the circuit board Road, the Acquisition Circuit include acquisition module, and the first end of the acquisition module is electrically connected with the audio transmission line, described to adopt The second end of collection module is electrically connected with the interface of the pedestal.
3. antistatic microphone according to claim 2, which is characterized in that the anti-static circuit includes electrostatic leakage mould The first end of block, the electrostatic leakage module is electrically connected with the interface of the pedestal, the second termination of the electrostatic leakage module Ground, the electrostatic transmitted to the Acquisition Circuit are released.
4. antistatic microphone according to claim 3, which is characterized in that the electrostatic leakage module presses down including a transient state Diode processed, the cathode of the Transient Suppression Diode are electrically connected with the interface of the pedestal, the Transient Suppression Diode Plus earth.
5. antistatic microphone according to claim 4, which is characterized in that the acquisition module includes the first capacitance, the The first end of two capacitances, first resistor, second resistance and first node, first capacitance is connect with the audio transmission line, The second end of first capacitance, the first end of second capacitance, the first end of the first resistor and the second resistance First end be connected at the first node, the second end of second capacitance connects with the second end of the first resistor Ground, the second end of the second resistance are connect with the cathode of the Transient Suppression Diode.
6. antistatic microphone according to claim 1, which is characterized in that be filled with insulant inside the gooseneck Matter is used for the shell of the gooseneck and being isolated for the audio transmission line.
7. antistatic microphone according to claim 6, which is characterized in that the megohmite insulant is epoxy resin.
8. antistatic microphone according to claim 1, which is characterized in that the internal diameter of the gooseneck is 5~7mm, described The outer diameter of gooseneck is 6~9mm, and the length of the gooseneck is 150~200mm.
9. according to claim 1-8 any one of them antistatic microphones, which is characterized in that the audio transmission line has two Item, respectively left channel audio transmission line and right audio channel transmission line.
CN201710930571.9A 2017-10-09 2017-10-09 A kind of antistatic microphone Pending CN108632691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710930571.9A CN108632691A (en) 2017-10-09 2017-10-09 A kind of antistatic microphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710930571.9A CN108632691A (en) 2017-10-09 2017-10-09 A kind of antistatic microphone

Publications (1)

Publication Number Publication Date
CN108632691A true CN108632691A (en) 2018-10-09

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CN201710930571.9A Pending CN108632691A (en) 2017-10-09 2017-10-09 A kind of antistatic microphone

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110753432A (en) * 2019-11-30 2020-02-04 济宁中科先进技术研究院有限公司 Multi-state new energy automobile atmosphere lamp system and control method thereof
CN114222215A (en) * 2021-12-01 2022-03-22 北京百度网讯科技有限公司 Anti-static microphone
CN110753432B (en) * 2019-11-30 2024-04-05 济宁中科智能科技有限公司 Atmosphere lamp system of multi-state new energy automobile and control method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101304618A (en) * 2007-05-08 2008-11-12 欧力天工股份有限公司 Microphone
CN101389156A (en) * 2007-09-11 2009-03-18 谢小明 Impedance convertor having antistatic and wave-filtering functions for electronic capatitance micphone
CN202026459U (en) * 2010-12-17 2011-11-02 美律电子(深圳)有限公司 Radio frequency interference-free capacitance microphone apparatus
CN204929186U (en) * 2015-08-13 2015-12-30 深圳市冠旭电子有限公司 Drive -by -wire earphone
CN105307083A (en) * 2015-11-16 2016-02-03 北京兴科迪科技有限公司 Vehicular microphone system
CN106101885A (en) * 2016-08-05 2016-11-09 上海柏莱特视听设备服务有限公司 Meeting mike
CN106817644A (en) * 2017-02-21 2017-06-09 上海青橙实业有限公司 A kind of mobile terminal and head circuit
CN206516800U (en) * 2017-01-12 2017-09-22 深圳市金立通信设备有限公司 Earphone jack seat and its terminal, the earphone extended line of application

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101304618A (en) * 2007-05-08 2008-11-12 欧力天工股份有限公司 Microphone
CN101389156A (en) * 2007-09-11 2009-03-18 谢小明 Impedance convertor having antistatic and wave-filtering functions for electronic capatitance micphone
CN202026459U (en) * 2010-12-17 2011-11-02 美律电子(深圳)有限公司 Radio frequency interference-free capacitance microphone apparatus
CN204929186U (en) * 2015-08-13 2015-12-30 深圳市冠旭电子有限公司 Drive -by -wire earphone
CN105307083A (en) * 2015-11-16 2016-02-03 北京兴科迪科技有限公司 Vehicular microphone system
CN106101885A (en) * 2016-08-05 2016-11-09 上海柏莱特视听设备服务有限公司 Meeting mike
CN206516800U (en) * 2017-01-12 2017-09-22 深圳市金立通信设备有限公司 Earphone jack seat and its terminal, the earphone extended line of application
CN106817644A (en) * 2017-02-21 2017-06-09 上海青橙实业有限公司 A kind of mobile terminal and head circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110753432A (en) * 2019-11-30 2020-02-04 济宁中科先进技术研究院有限公司 Multi-state new energy automobile atmosphere lamp system and control method thereof
CN110753432B (en) * 2019-11-30 2024-04-05 济宁中科智能科技有限公司 Atmosphere lamp system of multi-state new energy automobile and control method thereof
CN114222215A (en) * 2021-12-01 2022-03-22 北京百度网讯科技有限公司 Anti-static microphone
CN114222215B (en) * 2021-12-01 2023-03-10 北京百度网讯科技有限公司 Anti-static microphone

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Application publication date: 20181009

RJ01 Rejection of invention patent application after publication