CN208258006U - A kind of electret capacitor microphone reducing noise - Google Patents
A kind of electret capacitor microphone reducing noise Download PDFInfo
- Publication number
- CN208258006U CN208258006U CN201820596287.2U CN201820596287U CN208258006U CN 208258006 U CN208258006 U CN 208258006U CN 201820596287 U CN201820596287 U CN 201820596287U CN 208258006 U CN208258006 U CN 208258006U
- Authority
- CN
- China
- Prior art keywords
- hearing aid
- electrode
- slot electrode
- microphone
- bar
- 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 - Fee Related
Links
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model discloses the electret capacitor microphones that one kind can reduce noise, including microphone body, Air Filter, first electrode bar, second electrode bar, hearing aid, threaded post, first hearing aid electrode stem, second hearing aid electrode stem, first hearing aid slot electrode, second hearing aid slot electrode, magnetite, dust-proof steel wire, dustcloth and waterproof membrane, one end of microphone body is equipped with first electrode bar, the bottom end of first electrode bar is equipped with second electrode bar, the other end of microphone body is equipped with the first hearing aid slot electrode, the bottom end of first hearing aid slot electrode is equipped with the second hearing aid slot electrode, the outside of first hearing aid slot electrode and the second hearing aid slot electrode is equipped with magnetite.The device can reduce the ambient noise of electret microphone, be amplified by sound of the amplifier to speaker, to weaken noise, and installation and maintenance are quite convenient to, and are improved efficiency, and the time is saved, it is brought convenience to people's use, structure is simple, facilitates popularization.
Description
Technical field
The utility model relates to a kind of electret capacitor microphones, and in particular to one kind can reduce the electret electricity of noise
Capacitance-type microphone.
Background technique
Electret microphone is also known as Electret condenser microphone, is converted two parts by acoustic-electric conversion and impedance and is formed.Acoustic-electric conversion
Key element is electret vibrating membrane.It is a piece of very thin plastic film, evaporates one layer of proof gold film on one side wherein.So
Afterwards using high voltage electric field electret after, the charges of different polarity are had on two sides stationed respectively.The steaming gold of diaphragm faces out, and is connected with metal shell
It is logical.Kept apart between the another side and metal polar plate of diaphragm with thin insulation lining ring.In this way, steaming between golden film and metal polar plate just
Form a capacitor.When electret diaphragm encounters acoustic vibration, the electric field at capacitor both ends is caused to change, to produce
The alternating voltage for changing with sound wave and changing.Capacitance between electret diaphragm and metal polar plate is smaller, and generally tens
pF.Thus its impedance values are very high (Xc=1/2 ~ tfc), and about tens megaohms or more.Impedance high in this way be cannot directly with
What audio-frequency amplifier matched.So a junction field effect transistor triode is accessed in microphone to carry out impedance transformation.?
The characteristics of effect pipe is that input impedance is high, noise coefficient is low.Common field-effect tube source (S), grid (G) and drain electrode (D)
Three poles.Used herein is the dedicated field-effect tube of a compound diode again between internal source and grid.Connect diode
Purpose be that scene effect pipe shields when being impacted by strong signal.The grid of field-effect tube connects metal polar plate.In this way, electret
The output line of body microphone just has three.That is source S, general blue modeling line, drain D, generally with red plastic line and connection gold
Belong to the braid shielded line of shell.Existing electret microphone using very extensive, is especially being made a phone call in life, Huo Zheyan
When saying speech, but existing electret microphone causes to will appear when speech many there are the defect of noise
Noise brings inconvenience, although the prior art is unobvious to electret microphone progress noise-proofing processing effect, gives
People's use brings puzzlement.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of electret electricity that can reduce noise
Capacitance-type microphone, to solve the above problems.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
The utility model provides a kind of electret capacitor microphone that can reduce noise, including microphone body, anti-
Dirt net, first electrode bar, second electrode bar, hearing aid, threaded post, the first hearing aid electrode stem, the second hearing aid electrode stem,
One hearing aid slot electrode, the second hearing aid slot electrode, magnetite, dust-proof steel wire, dustcloth and waterproof membrane, the microphone body
One end be equipped with the first electrode bar, the bottom end of the first electrode bar is equipped with the second electrode bar, the microphone sheet
The other end of body is equipped with the first hearing aid slot electrode, and the bottom end of the first hearing aid slot electrode is equipped with second hearing aid
The outside of device slot electrode, the first hearing aid slot electrode and the second hearing aid slot electrode is equipped with the magnetite, described to help
One end of device is listened to be equipped with the threaded post, the other end of the hearing aid is equipped with the first hearing aid electrode stem and described second
The side of hearing aid electrode stem, the hearing aid is equipped with the Air Filter.
As a kind of optimal technical scheme of the utility model, the Air Filter is by the dust-proof steel wire, described dust-proof
Cloth and the waterproof membrane are constituted, and the bottom end of the dust-proof steel wire is equipped with the dustcloth, and the bottom end of the dustcloth is equipped with institute
State waterproof membrane.
As a kind of optimal technical scheme of the utility model, the first hearing aid slot electrode and second hearing aid
The inside of slot electrode is equipped with silica gel, and the hearing aid passes through the first hearing aid electrode stem and the second hearing aid electrode stem
It is connected with the first hearing aid slot electrode and the second hearing aid slot electrode.
As a kind of optimal technical scheme of the utility model, the Air Filter and the hearing aid pass through the threaded post
It is connected, the hearing aid leads to the magnetite with the microphone body and is connected.
As a kind of optimal technical scheme of the utility model, the first hearing aid slot electrode and second hearing aid
The inside of slot electrode is equipped with spring shim, and the spring shim is electrical with the first electrode bar and the second electrode bar respectively
Connection.
The utility model beneficial effect achieved is: the device is a kind of electret capacitor type Mike that can reduce noise
Wind, the device can reduce the ambient noise of electret microphone, be amplified by sound of the amplifier to speaker, thus
Weaken noise, and installation and maintenance are quite convenient to, and are improved efficiency, saves the time, brought convenience to people's use, structure letter
It is single, facilitate popularization.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the deployed configuration schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the cross-sectional view of the utility model Air Filter；
Fig. 4 is the top view of the utility model Air Filter；
In figure: 1, microphone body；2, Air Filter；3, first electrode bar；4, second electrode bar；5, hearing aid；6, screw thread
Column；7, the first hearing aid electrode stem；8, the second hearing aid electrode stem；9, the first hearing aid slot electrode；10, the second hearing aid electrode
Slot；11, magnetite；12, dust-proof steel wire；13, dustcloth；14, waterproof membrane.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figs 1-4, the utility model provides a kind of electret capacitor microphone that can reduce noise, including Mike
Wind ontology 1, Air Filter 2, first electrode bar 3, second electrode bar 4, hearing aid 5, threaded post 6, the first hearing aid electrode stem 7,
It is two hearing aid electrode stems 8, the first hearing aid slot electrode 9, the second hearing aid slot electrode 10, magnetite 11, dust-proof steel wire 12, dust-proof
Cloth 13 and waterproof membrane 14, one end of microphone body 1 are equipped with first electrode bar 3, and the bottom end of first electrode bar 3 is equipped with second electrode
Bar 4, the other end of microphone body 1 are equipped with the first hearing aid slot electrode 9, and the bottom end of the first hearing aid slot electrode 9 is equipped with second
The outside of hearing aid slot electrode 10, the first hearing aid slot electrode 9 and the second hearing aid slot electrode 10 is equipped with magnetite 11, hearing aid 5
One end be equipped with threaded post 6, the other end of hearing aid 5 is equipped with the first hearing aid electrode stem 7 and the second hearing aid electrode stem 8, helps
The side of device 5 is listened to be equipped with Air Filter 2.
Air Filter 2 is made of dust-proof steel wire 12, dustcloth 13 and waterproof membrane 14, and the bottom end of dust-proof steel wire 12 is equipped with anti-
The bottom end of dirt cloth 13, dustcloth 13 is equipped with waterproof membrane 14.
The inside of first hearing aid slot electrode 9 and the second hearing aid slot electrode 10 is equipped with silica gel, and hearing aid 5 is helped by first
Device electrode stem 7 and the second hearing aid electrode stem 8 is listened to be connected with the first hearing aid slot electrode 9 and the second hearing aid slot electrode 10.
Air Filter 2 is connected with hearing aid 5 by threaded post 6, and hearing aid 5 leads to magnetite 11 with microphone body 1 and is connected.
The inside of first hearing aid slot electrode 9 and the second hearing aid slot electrode 10 is equipped with spring shim, spring shim difference
It is electrically connected with first electrode bar 3 and second electrode bar 4.
The device is a kind of electret capacitor microphone that can reduce noise, including microphone body 1, Air Filter 2, the
One electrode stem 3, second electrode bar 4, hearing aid 5, threaded post 6, the first hearing aid electrode stem 7, the second hearing aid electrode stem 8,
One hearing aid slot electrode 9, the second hearing aid slot electrode 10, magnetite 11, dust-proof steel wire 12, dustcloth 13 and waterproof membrane 14, should
Microphone body 1 is made of Air Filter 2, hearing aid 5 and microphone electronic component, and hearing aid 5 is positioned by magnetite 11, allows first
Hearing aid electrode stem 7 and the second hearing aid electrode stem 8 are inserted into the first hearing aid slot electrode 9 and the second hearing aid slot electrode 10,
To allow hearing aid 5 to power on, when people are made a speech by Air Filter 2, sound can be sent to wheat by hearing aid 5 by sound
Electronic component in gram wind reduces noise, and the more preferable very simple of hearing aid 5, passes through to improve the sound of spokesman
Air Filter 2 is rotated, hearing aid 5 is extracted, the hearing aid 5 more renewed is brought convenience to people's maintenance.
The utility model beneficial effect achieved is: the device is a kind of electret capacitor type Mike that can reduce noise
Wind, the device can reduce the ambient noise of electret microphone, be amplified by sound of the amplifier to speaker, thus
Weaken noise, and installation and maintenance are quite convenient to, and are improved efficiency, saves the time, brought convenience to people's use, structure letter
It is single, facilitate popularization.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. one kind can reduce the electret capacitor microphone of noise, including microphone body (1), Air Filter (2), first electrode
Bar (3), second electrode bar (4), hearing aid (5), threaded post (6), the first hearing aid electrode stem (7), the second hearing aid electrode stem
(8), the first hearing aid slot electrode (9), the second hearing aid slot electrode (10), magnetite (11), dust-proof steel wire (12), dustcloth
(13) and waterproof membrane (14), which is characterized in that one end of the microphone body (1) is equipped with the first electrode bar (3), described
The bottom end of first electrode bar (3) is equipped with the second electrode bar (4), and the other end of the microphone body (1) is equipped with described the
The bottom end of one hearing aid slot electrode (9), the first hearing aid slot electrode (9) is equipped with the second hearing aid slot electrode (10),
The outside of the first hearing aid slot electrode (9) and the second hearing aid slot electrode (10) is equipped with the magnetite (11), described
One end of hearing aid (5) is equipped with the threaded post (6), and the other end of the hearing aid (5) is equipped with the first hearing aid electrode
The side of bar (7) and the second hearing aid electrode stem (8), the hearing aid (5) is equipped with the Air Filter (2).
2. the electret capacitor microphone that one kind according to claim 1 can reduce noise, which is characterized in that described anti-
Dirt net (2) is made of the dust-proof steel wire (12), the dustcloth (13) and the waterproof membrane (14), the dust-proof steel wire
(12) bottom end is equipped with the dustcloth (13), and the bottom end of the dustcloth (13) is equipped with the waterproof membrane (14).
3. the electret capacitor microphone that one kind according to claim 1 can reduce noise, which is characterized in that described
The inside of one hearing aid slot electrode (9) and the second hearing aid slot electrode (10) is equipped with silica gel, and the hearing aid (5) passes through institute
State the first hearing aid electrode stem (7) and the second hearing aid electrode stem (8) and the first hearing aid slot electrode (9) and described
Second hearing aid slot electrode (10) is connected.
4. the electret capacitor microphone that one kind according to claim 1 can reduce noise, which is characterized in that described anti-
Dirt net (2) is connected with the hearing aid (5) by the threaded post (6), the hearing aid (5) and the microphone body (1)
Lead to the magnetite (11) to be connected.
5. the electret capacitor microphone that one kind according to claim 1 can reduce noise, which is characterized in that described
The inside of one hearing aid slot electrode (9) and the second hearing aid slot electrode (10) is equipped with spring shim, the spring shim point
It is not electrically connected with the first electrode bar (3) and the second electrode bar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596287.2U CN208258006U (en) | 2018-04-25 | 2018-04-25 | A kind of electret capacitor microphone reducing noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596287.2U CN208258006U (en) | 2018-04-25 | 2018-04-25 | A kind of electret capacitor microphone reducing noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208258006U true CN208258006U (en) | 2018-12-18 |
Family
ID=64638153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820596287.2U Expired - Fee Related CN208258006U (en) | 2018-04-25 | 2018-04-25 | A kind of electret capacitor microphone reducing noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208258006U (en) |
-
2018
- 2018-04-25 CN CN201820596287.2U patent/CN208258006U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203504716U (en) | Three-terminal noise-reduction microphone | |
| CN207070253U (en) | A kind of mobile terminal, ear-micro phone and its Electret condenser microphone circuit | |
| CN203072150U (en) | Noise-reduction electret microphone | |
| CN105979438A (en) | Wind noise-prevention microphone single body and earphone | |
| CN208258006U (en) | A kind of electret capacitor microphone reducing noise | |
| CN103458333B (en) | A kind of high anti-noise type dynamic microphones of high-fidelity with good Electro Magnetic Compatibility | |
| CN205793138U (en) | A kind of Radix Saposhnikoviae is made an uproar mike monomer and earphone | |
| CN205123998U (en) | MEMS microphone and radio reception device | |
| CN206413137U (en) | A kind of easy-to-dismount Novel receiver | |
| CN206977686U (en) | A kind of vehicle loudspeaker | |
| CN205160786U (en) | Capacitive microphone | |
| CN201967086U (en) | Microphone | |
| CN205666067U (en) | Microphone array speech enhancement circuit | |
| CN204465850U (en) | A kind of Anti-interference earphone circuit | |
| CN202435606U (en) | Single-direction electret microphone | |
| CN208863046U (en) | A kind of earphone front cover device with noise reduction microphone call function | |
| CN208924504U (en) | One kind can be realized bar microphone apparatus if high anti-noise | |
| CN209234005U (en) | It returns sound functional component and assists the sound insulation feedback earphone of Foreigh-language oral-speech training | |
| CN205105359U (en) | Cylindricality contact microphone | |
| CN205785498U (en) | A kind of shadow rocket projectile high-altitude explosion subsonics harvester | |
| CN208258072U (en) | A kind of electret capacitor microphone resistant to high temperature | |
| CN109348340A (en) | A kind of earphone front cover device with noise reduction microphone call function | |
| CN205385583U (en) | Meeting microphone of conveniently hand -carrying and can translating | |
| CN204836574U (en) | Anti -interference speaker | |
| CN204145747U (en) | A kind of structural bone conduction microphone of supporting type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20210425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |