CN2834073Y - Thin-type electret capacitor microphone - Google Patents
Thin-type electret capacitor microphone Download PDFInfo
- Publication number
- CN2834073Y CN2834073Y CN 200520056025 CN200520056025U CN2834073Y CN 2834073 Y CN2834073 Y CN 2834073Y CN 200520056025 CN200520056025 CN 200520056025 CN 200520056025 U CN200520056025 U CN 200520056025U CN 2834073 Y CN2834073 Y CN 2834073Y
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- pole plate
- back pole
- utility
- capacitor microphone
- 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
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- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model belongs to the condenser microphone field.Place in the enclosure a surface paste the back pole plate of punching in the middle of the fep film, then put into a pad, put into ambroin ring, vibrating diaphragm again and put in the middle of the ambroin ring, cover the wiring board group at last, then shell is sealed.The utility model has following advantage compared to existing technology: interference free performance height, particularly frequency electromagnetic waves; Wide frequency range, frequency response are 50～20KHz; Adopt high-gain ECM application-specific integrated circuit chip amplifying circuit, more common single the sensing more than the high 10dB of product of sensitivity; Advantages such as product structure is simple, volume is small and exquisite, dependable performance.
Description
Technical field
The utility model belongs to the condenser microphone field.
Background technology
Microphone is widely used in people's every field such as life, particularly modern communication device miniaturization such as mobile phone, bluetooth earphone, also have electro-acoustic product such as hearing aids to do littler and littler, its weak point is that common condenser microphone volume is bigger, the sensitivity height that is not easy to do, product reliability and life-span are lower, and particularly small-sized sensitivity of microphone difficulty is especially done height.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and the less interference free performance height of a kind of volume that provides, life-span are long, wide frequency range and highly sensitive microphone.
The purpose of this utility model can realize by following measure:
Place in the enclosure a surface paste the back pole plate of punching in the middle of the fep film, then put into a pad, put into ambroin ring, vibrating diaphragm again and put in the middle of the ambroin ring, cover the wiring board group at last, then shell is sealed.
Above-mentioned vibrating diaphragm group is made up of vibrating diaphragm and connecting ring, and vibrating diaphragm is attached on the connecting ring.
The middle punching of fep film is pasted on above-mentioned back pole plate surface.
Binding IC chip and 2PCS electric capacity in the wiring board group.
The utility model has following advantage compared to existing technology:
1, interference free performance height, particularly frequency electromagnetic waves;
2, wide frequency range, frequency response are 50～20KHz;
3, adopt high-gain ECM application-specific integrated circuit chip amplifying circuit, more common single the sensing more than the high 10dB of product of sensitivity;
Advantages such as 4, product structure is simple, volume is small and exquisite, dependable performance.
Description of drawings
Fig. 1 is the utility model structure chart;
Fig. 2 is the utility model circuit theory diagrams.
Embodiment
Be described in further detail to closing accompanying drawing (embodiment) below the utility model:
With reference to accompanying drawing 1, the utility model is made up of wiring board group 1, vibrating diaphragm group 2, dead ring 3, pad 4, back pole plate 5, shell 6, Air Filter 7, one back pole plate (5) is set in the enclosure, in back pole plate (5) lining pad (4) is set, put into dead ring (3) again, vibrating diaphragm group (2) is put in the middle of the dead ring (3), cover wiring board group (1), then shell (6) is sealed, the bottom is pasted and is put dirt net (7), vibrating diaphragm group 2 is made up of vibrating diaphragm 21, connecting ring 22, and vibrating diaphragm 21 is attached on the connecting ring 22, and the middle punching of fep film is pasted on back pole plate 5 surfaces.
With reference to accompanying drawing 2, binding IC chip and 2PCS electric capacity in wiring board group 1.
Claims (3)
1. slim electret capacitor microphone of forming by wiring board group (1), pad (4), back pole plate (5), shell (6), Air Filter (7), it is characterized in that this slim electret capacitor microphone also is made up of vibrating diaphragm group (2), dead ring (3), one back pole plate (5) is set in the enclosure, in back pole plate (5) lining pad (4) is set, put into dead ring (3) again, vibrating diaphragm group (2) is put in the middle of the dead ring (3), cover wiring board group (1), then shell (6) is sealed, the bottom is pasted and is put dirt net (7).
2. slim electret capacitor microphone according to claim 1 is characterized in that vibrating diaphragm group (2) also is made up of vibrating diaphragm (21), connecting ring (22), and vibrating diaphragm (21) is attached on the connecting ring (22).
3. slim electret capacitor microphone according to claim 1 is characterized in that the middle punching of back pole plate (5) surface subsides fep film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056025 CN2834073Y (en) | 2005-03-25 | 2005-03-25 | Thin-type electret capacitor microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056025 CN2834073Y (en) | 2005-03-25 | 2005-03-25 | Thin-type electret capacitor microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2834073Y true CN2834073Y (en) | 2006-11-01 |
Family
ID=37198383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520056025 Expired - Fee Related CN2834073Y (en) | 2005-03-25 | 2005-03-25 | Thin-type electret capacitor microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2834073Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547907A (en) * | 2019-01-23 | 2019-03-29 | 东莞泉声电子有限公司 | Lesser electret capacitor microphone of noise coefficient and preparation method thereof |
-
2005
- 2005-03-25 CN CN 200520056025 patent/CN2834073Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547907A (en) * | 2019-01-23 | 2019-03-29 | 东莞泉声电子有限公司 | Lesser electret capacitor microphone of noise coefficient and preparation method thereof |
| CN109547907B (en) * | 2019-01-23 | 2024-01-05 | 东莞泉声电子有限公司 | Electret capacitor microphone and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061101 Termination date: 20120325 |