CN208258072U - A kind of electret capacitor microphone resistant to high temperature - Google Patents
A kind of electret capacitor microphone resistant to high temperature Download PDFInfo
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- CN208258072U CN208258072U CN201820596286.8U CN201820596286U CN208258072U CN 208258072 U CN208258072 U CN 208258072U CN 201820596286 U CN201820596286 U CN 201820596286U CN 208258072 U CN208258072 U CN 208258072U
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- microphone
- magnetite
- slot
- electrode pin
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- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model discloses a kind of electret capacitor microphones resistant to high temperature, including microphone body, Air Filter, first magnetite, first electrode pin, second electrode pin, exhaust vent, radiating seat, first electrode slot, micromotor, first electrode bar, flabellum, second electrode bar, second electrode slot, air inlet hole and the second magnetite, the top of microphone body is equipped with Air Filter, the middle part of microphone body is equipped with exhaust vent, the bottom end of microphone body is equipped with the first magnetite, one end of first magnetite is equipped with first electrode pin, the other end of first magnetite is equipped with second electrode pin, the bottom end of radiating seat is equipped with air inlet hole, the side of air inlet hole is equipped with first electrode bar, the other side of air inlet hole is equipped with second electrode bar.The device can quickly radiate to electret microphone, and not influence the normal use of electret microphone, improve the service life of electret microphone, bring conveniently, structure is simple, facilitates popularization.
Description
Technical field
The utility model relates to a kind of electret capacitor microphones, and in particular to a kind of electret capacitor type resistant to high temperature
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 heat dissipation performance is bad, and the temperature for often resulting in electronic component is excessively high
And electronic component is damaged, it causes electret microphone service life low, brings inconvenience.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of electret capacitor type resistant to high temperature
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 resistant to high temperature, including microphone body, Air Filter,
First magnetite, first electrode pin, second electrode pin, exhaust vent, radiating seat, first electrode slot, micromotor, first electrode bar,
Flabellum, second electrode bar, second electrode slot, air inlet hole and the second magnetite, the top of the microphone body are equipped with described dust-proof
Net, the middle part of the microphone body are equipped with the exhaust vent, and the bottom end of the microphone body is equipped with first magnetite, institute
The one end for stating the first magnetite is equipped with the first electrode pin, and the other end of first magnetite is equipped with the second electrode pin, institute
The bottom end for stating radiating seat is equipped with the air inlet hole, and the side of the air inlet hole is equipped with the first electrode bar, the air inlet hole
The other side is equipped with the second electrode bar, and the center bottom of the radiating seat is equipped with the micromotor, on the micromotor
Equipped with the flabellum, the side of the micromotor is equipped with the first electrode slot, and the other side of the micromotor is equipped with institute
Second electrode slot is stated, the top of the radiating seat is equipped with second magnetite.
As a kind of optimal technical scheme of the utility model, the microphone body passes through the first electrode pin and institute
State second electrode pin on the radiating seat the first electrode slot and the second electrode slot be connected.
As a kind of optimal technical scheme of the utility model, the first electrode bar and the second electrode bar with it is described
Spring shim in first electrode slot and the second electrode slot is electrically connected, the spring shim and the first electrode pin and
The second electrode pin is electrically connected, the temperature inside the first electrode pin and the second electrode pin and the microphone body
Sensor is spent to be electrically connected, the temperature sensor and electric machine controller are electrically connected, the electric machine controller with it is described miniature
Electrical connection of motor.
As a kind of optimal technical scheme of the utility model, the micromotor is fixed by screws in the radiating seat
On, the microphone body and the radiating seat are connected with each other by first magnetite and second magnetite.
As a kind of optimal technical scheme of the utility model, it is equipped on the exhaust vent and the air inlet hole dust-proof
Cloth, the Air Filter are connected with the microphone body by screw thread.
The utility model beneficial effect achieved is: the device is a kind of electret capacitor microphone resistant to high temperature,
The device can quickly radiate to electret microphone, and not influence the normal use of electret microphone, and raising is stayed
The service life of Electret microphone is brought conveniently, and structure is simple, facilitates 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；
In figure: 1, microphone body；2, Air Filter；3, the first magnetite；4, first electrode pin；5, second electrode pin；6, go out
Air holes；7, radiating seat；8, first electrode slot；9, micromotor；10, first electrode bar；11, flabellum；12, second electrode bar；13,
Second electrode slot；14, air inlet hole；15, the second magnetite.
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 Figure 1, the utility model provides a kind of electret capacitor microphone resistant to high temperature, including microphone body
1, Air Filter 2, the first magnetite 3, first electrode pin 4, second electrode pin 5, exhaust vent 6, radiating seat 7, first electrode slot 8, miniature
Motor 9, first electrode bar 10, flabellum 11, second electrode bar 12, second electrode slot 13, air inlet hole 14 and the second magnetite 15, Mike
The top of wind ontology 1 is equipped with Air Filter 2, and the middle part of microphone body 1 is equipped with exhaust vent 6, and the bottom end of microphone body 1 is equipped with the
One magnetite 3, one end of the first magnetite 3 are equipped with first electrode pin 4, and the other end of the first magnetite 3 is equipped with second electrode pin 5, heat dissipation
The bottom end of seat 7 is equipped with air inlet hole 14, and the side of air inlet hole 14 is equipped with first electrode bar 10, and the other side of air inlet hole 14 is equipped with second
Electrode stem 12, the center bottom of radiating seat 7 are equipped with micromotor 9, and micromotor 9 is equipped with flabellum 11, the side of micromotor 9
Equipped with first electrode slot 8, the other side of micromotor 9 is equipped with second electrode slot 13, and the top of radiating seat 7 is equipped with the second magnetite
15。
Microphone body 1 passes through the first electrode slot 8 and second on first electrode pin 4 and second electrode pin 5 and radiating seat 7
Slot electrode 13 is connected.
Spring shim in first electrode bar 10 and second electrode bar 12 and first electrode slot 8 and second electrode slot 13 is electrical
Connection, spring shim and first electrode pin 4 and the electric connection of second electrode pin 5, first electrode pin 4 and second electrode pin 5 and wheat
Temperature sensor inside gram wind ontology 1 is electrically connected, and temperature sensor and electric machine controller are electrically connected, electric machine controller with
Micromotor 9 is electrically connected.
Micromotor 9 is fixed by screws on radiating seat 7, microphone body 1 and radiating seat 7 by the first magnetite 3 and
Second magnetite 15 is connected with each other.
Dustcloth is equipped on exhaust vent 6 and air inlet hole 14, Air Filter 2 is connected with microphone body 1 by screw thread.
The device is a kind of electret capacitor microphone resistant to high temperature, including microphone body 1, Air Filter 2, the first magnetic
Stone 3, first electrode pin 4, second electrode pin 5, exhaust vent 6, radiating seat 7, first electrode slot 8, micromotor 9, first electrode bar
10, flabellum 11, second electrode bar 12, second electrode slot 13, air inlet hole 14 and the second magnetite 15, use when, pass through microphone
Temperature sensor in ontology 1 detects the electronic component in microphone body 1, when the temperature is excessively high, temperature sensor
The micromotor 9 on radiating seat 7 can be controlled by controller to be powered on, flabellum 11 is driven to rotate, so that extraneous wind is led to
It crosses air inlet hole 14 to be drawn into inside microphone body 1, the external world is then discharged to by exhaust vent 6, it is intermediate only to pass through microphone sheet
Electronic component in body 1 will not generate any influence to the work of microphone body 1, bring conveniently.
The utility model beneficial effect achieved is: the device is a kind of electret capacitor microphone resistant to high temperature,
The device can quickly radiate to electret microphone, and not influence the normal use of electret microphone, and raising is stayed
The service life of Electret microphone is brought conveniently, and structure is simple, facilitates 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. a kind of electret capacitor microphone resistant to high temperature, including microphone body (1), Air Filter (2), the first magnetite (3),
First electrode pin (4), second electrode pin (5), exhaust vent (6), radiating seat (7), first electrode slot (8), micromotor (9),
One electrode stem (10), flabellum (11), second electrode bar (12), second electrode slot (13), air inlet hole (14) and the second magnetite (15),
It is characterized in that, the top of the microphone body (1) is equipped with the Air Filter (2), set in the middle part of the microphone body (1)
Have the exhaust vent (6), the bottom end of the microphone body (1) is equipped with first magnetite (3), first magnetite (3)
One end is equipped with the first electrode pin (4), and the other end of first magnetite (3) is equipped with the second electrode pin (5), described to dissipate
The bottom end of hot seat (7) is equipped with the air inlet hole (14), and the side of the air inlet hole (14) is equipped with the first electrode bar (10), institute
The other side for stating air inlet hole (14) is equipped with the second electrode bar (12), and the center bottom of the radiating seat (7) is equipped with described micro-
Type motor (9), the micromotor (9) are equipped with the flabellum (11), and the side of the micromotor (9) is equipped with described first
The other side of slot electrode (8), the micromotor (9) is equipped with the second electrode slot (13), and the top of the radiating seat (7) is set
There is second magnetite (15).
2. a kind of electret capacitor microphone resistant to high temperature according to claim 1, which is characterized in that the microphone
Ontology (1) passes through first electricity on the first electrode pin (4) and the second electrode pin (5) and the radiating seat (7)
Pole slot (8) is connected with the second electrode slot (13).
3. a kind of electret capacitor microphone resistant to high temperature according to claim 1, which is characterized in that first electricity
Spring pad in pole bar (10) and the second electrode bar (12) and the first electrode slot (8) and the second electrode slot (13)
Piece is electrically connected, the spring shim and the first electrode pin (4) and the second electrode pin (5) electric connection, and described the
One electrode pin (4) and the second electrode pin (5) and the temperature sensor of the microphone body (1) inside are electrically connected, institute
It states temperature sensor and electric machine controller is electrically connected, the electric machine controller and the micromotor (9) are electrically connected.
4. a kind of electret capacitor microphone resistant to high temperature according to claim 1, which is characterized in that the micro electric
Machine (9) is fixed by screws on the radiating seat (7), and the microphone body (1) and the radiating seat (7) pass through described the
One magnetite (3) and second magnetite (15) are connected with each other.
5. a kind of electret capacitor microphone resistant to high temperature according to claim 1, which is characterized in that the exhaust vent
(6) and on the air inlet hole (14) it is equipped with dustcloth, the Air Filter (2) passes through screw thread phase with the microphone body (1)
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596286.8U CN208258072U (en) | 2018-04-25 | 2018-04-25 | A kind of electret capacitor microphone resistant to high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596286.8U CN208258072U (en) | 2018-04-25 | 2018-04-25 | A kind of electret capacitor microphone resistant to high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208258072U true CN208258072U (en) | 2018-12-18 |
Family
ID=64638042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820596286.8U Expired - Fee Related CN208258072U (en) | 2018-04-25 | 2018-04-25 | A kind of electret capacitor microphone resistant to high temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208258072U (en) |
-
2018
- 2018-04-25 CN CN201820596286.8U patent/CN208258072U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20210425 |