CN203313399U - Capacitance-type microphone with omnidirectional electret - Google Patents
Capacitance-type microphone with omnidirectional electret Download PDFInfo
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- CN203313399U CN203313399U CN2013204273742U CN201320427374U CN203313399U CN 203313399 U CN203313399 U CN 203313399U CN 2013204273742 U CN2013204273742 U CN 2013204273742U CN 201320427374 U CN201320427374 U CN 201320427374U CN 203313399 U CN203313399 U CN 203313399U
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- cavity
- shell
- capacitance
- omnidirectional electret
- omnidirectional
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- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model relates to a microphone, and in particular relates to a capacitance-type microphone with an omnidirectional electret. The capacitance-type microphone with the omnidirectional electret comprises a housing, wherein a cavity is formed in the housing; a sound transmission hole is formed in the bottom of the housing; a tube core is arranged in the cavity; a circuit board is arranged on the upper part of the cavity; a electrode plate connected with the bottom of the cavity in an embedding manner is arranged in the bottom of the cavity; the tube core is connected with the circuit board and the electrode plate respectively. The capacitance-type microphone with the omnidirectional electret is simple in structure, good in use effect, and long in service life.
Description
Technical field
The utility model patent relates to a kind of microphone, relates in particular to a kind of omnidirectional electret capacitive microphone.
Background technology
The microphone of currently available technology, complex structure, and also of low quality, result of use is poor.
Chinese patent CN201020670348.9, a kind of minisize electret microphone is disclosed, comprise shell and the diaphragm unit, insulation spacer, backplane assembly and the circuit board assemblies that set gradually in the enclosure, in addition, this minisize electret microphone also comprises the electric connection backplane assembly that is arranged between backplane assembly and circuit board assemblies and the conductive coating of circuit board assemblies.This complex structure, and result of use is poor.
Summary of the invention
The utility model is mainly to solve the deficiencies in the prior art, provides a kind of simple in structure, and the outstanding omnidirectional electret capacitive microphone of result of use.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of omnidirectional electret capacitive microphone, comprise shell, in described shell, be provided with cavity, the bottom of described shell is provided with sound transmission aperture, in described cavity, be provided with tube core, the top of described cavity is provided with wiring board, in the bottom of described cavity, is provided with the pole plate be halved together with it, and described tube core is connected with pole plate with wiring board respectively.
As preferably, between the bottom of described cavity and shell, be provided with diaphragm, between the bottom of described diaphragm and cavity, be provided with pad, the bottom phase crimping of the top of described pad and pole plate.
As preferably, the bottom of described shell is provided with Air Filter, the distribution corresponding with sound transmission aperture of described Air Filter, and the top of described wiring board is by the crimping of shell phase.
Therefore, omnidirectional electret capacitive microphone of the present utility model, simple in structure, result of use is good, long service life.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of omnidirectional electret capacitive microphone, comprise shell 1, in described shell 1, be provided with cavity 2, the bottom of described shell 1 is provided with sound transmission aperture 3, is provided with tube core 4 in described cavity 2, and the top of described cavity 2 is provided with wiring board 5, in the bottom of described cavity 2, be provided with the pole plate 6 be halved together with it, described tube core 4 is connected with pole plate 6 with wiring board 5 respectively.1, the bottom of described cavity 2 and shell are provided with diaphragm 7, are provided with pad 8 between the bottom of described diaphragm 7 and cavity 2, the bottom phase crimping of the top of described pad 8 and pole plate 6.The bottom of described shell 1 is provided with Air Filter 9, described Air Filter 9 and the corresponding distribution of sound transmission aperture 3, and the top of described wiring board 5 is by shell 1 phase crimping.
Claims (3)
1. omnidirectional electret capacitive microphone, it is characterized in that: comprise shell (1), in described shell (1), be provided with cavity (2), the bottom of described shell (1) is provided with sound transmission aperture (3), in described cavity (2), be provided with tube core (4), the top of described cavity (2) is provided with wiring board (5), in the bottom of described cavity (2), be provided with the pole plate (6) be halved together with it, described tube core (4) is connected with pole plate (6) with wiring board (5) respectively.
2. omnidirectional electret capacitive microphone according to claim 1, it is characterized in that: be provided with diaphragm (7) between the bottom of described cavity (2) and shell (1), between the bottom of described diaphragm (7) and cavity (2), be provided with pad (8), the bottom phase crimping of the top of described pad (8) and pole plate (6).
3. omnidirectional electret capacitive microphone according to claim 1 and 2, it is characterized in that: the bottom of described shell (1) is provided with Air Filter (9), described Air Filter (9) and the corresponding distribution of sound transmission aperture (3), the top of described wiring board (5) is by shell (1) phase crimping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204273742U CN203313399U (en) | 2013-07-18 | 2013-07-18 | Capacitance-type microphone with omnidirectional electret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204273742U CN203313399U (en) | 2013-07-18 | 2013-07-18 | Capacitance-type microphone with omnidirectional electret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203313399U true CN203313399U (en) | 2013-11-27 |
Family
ID=49619566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204273742U Expired - Fee Related CN203313399U (en) | 2013-07-18 | 2013-07-18 | Capacitance-type microphone with omnidirectional electret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203313399U (en) |
-
2013
- 2013-07-18 CN CN2013204273742U patent/CN203313399U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131127 Termination date: 20160718 |