CN202444619U - Spring connection type electret microphone - Google Patents
Spring connection type electret microphone Download PDFInfo
- Publication number
- CN202444619U CN202444619U CN2012200352473U CN201220035247U CN202444619U CN 202444619 U CN202444619 U CN 202444619U CN 2012200352473 U CN2012200352473 U CN 2012200352473U CN 201220035247 U CN201220035247 U CN 201220035247U CN 202444619 U CN202444619 U CN 202444619U
- Authority
- CN
- China
- Prior art keywords
- contact electrode
- spring
- metal shell
- electrically connected
- pole plate
- 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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Abstract
The utility model discloses a spring connection type electret microphone, which comprises a metal shell with an opening, a capacitor assembly and a connection assembly, wherein the capacitor assembly and the connection assembly are mounted inside the metal shell. The capacitor assembly comprises a diaphragm, an insulated gasket and a back electrode plate, wherein the diaphragm, the insulated gasket and the back electrode plate are sequentially arranged inside the metal shell. The connection assembly further comprises a contact electrode mounted in a containing hole. One end of the contact electrode is provided with a contact end face used for being electrically connected with a grid electrode of a field-effect tube, and the other end of the contact electrode is provided with a spring in a sleeved mode. The spring is electrically connected with the back electrode plate. Due to the contact electrode, one end of the contact electrode penetrates through a support body and a damper to be electrically connected with the back electrode plate, and the end face of the other end of the contact electrode is electrically connected with the grid electrode of the field-effect tube on a circuit board. The spring connection type electret microphone is convenient to assemble and stable in structure and has less parts compared with a traditional microphone so that consistency of products is easy to control. The contact electrode and the spring sleeved on the contact electrode are easy to process and low in cost.
Description
Technical field
The utility model relates to electroacoustic conversion field, relates in particular to a kind of spring interconnection system electret microphone.
Background technology
Existing directive property electret microphone uses grating ring with the grid shell back pole plate to be connected with fet gate mostly, and the microphone in some size range then directly is crimped on the grid of FET on the pole plate; For the microphone of some large-sizes, can't the grid of FET directly be crimped on the back pole plate during installation, and not only cost is very high to use grating ring and grid shell, and assembles more complicated, obtain relatively difficulty of desirable frequency response curve.Therefore, need be under the prerequisite of saving cost and assurance properties of product, also the grid and the back pole plate of FET couple together to adopt a kind of reliable connected mode flexibly.
Summary of the invention
The utility model technical problem to be solved is: a kind of spring interconnection system electret microphone is provided, and this microphone is easy to assembling and good product performance.
For solving the problems of the technologies described above, the technical scheme of the utility model is: spring interconnection system electret microphone comprises:
Metal shell with opening, the opening part of said metal shell is equipped with wiring board, and the inboard of said wiring board is provided with FET, and the bottom of said metal shell is provided with hole, and the inner bottom surface of said metal shell is provided with Air Filter;
Be installed in the inner capacitance component of said metal shell, said capacitance component comprises vibrating diaphragm, insulation spacer and the back pole plate that sets gradually from bottom to top;
Coupling assembling, said coupling assembling comprise damping and the supporter that is successively set on the said back pole plate, and said supporter is arranged on the inboard of said wiring board, and the medium position of said damping and supporter correspondence respectively is provided with containing hole;
Said coupling assembling also comprises the contact electrode that is installed in the said containing hole, and said contact electrode one end is provided with and is used for contacting end face with the grid of said FET is electrically connected, and the other end is arranged with spring, and said spring is electrically connected with said back pole plate.
As a kind of improvement, be equipped with several through holes on said wiring board, supporter and the back pole plate.
Owing to adopted technique scheme, the beneficial effect of the utility model is: owing to be provided with contact electrode, contact electrode one end is electrically connected with back pole plate; The grid of FET is electrically connected on the end face of the other end and the wiring board, and easy to assembly, structure is firm; Compare with traditional microphone, accessory is less, and consistency of product is easy to control; Contact electrode be set in the spring on the contact electrode, be easy to processing and cost low.
Because wiring board, supporter and back pole plate are provided with through hole; Microphone one side noise passes the through hole on the wiring board, the through hole on the supporter; Arrive vibrating diaphragm through overdamp and back pole plate; And the opposite side noise arrives vibrating diaphragm through the sound hole on the metal shell, and the noise of both sides is cancelled out each other, and the utility model noise jamming is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the explosive view of the utility model embodiment;
Fig. 2 is the structure cutaway view of the utility model embodiment;
Among the figure: the 1-metal shell; The 10-FET; The 11-wiring board; 12-sound hole; The 2-Air Filter; The 3-vibrating diaphragm; The 4-insulation spacer; The 5-back pole plate; The 6-spring; The 7-damping; The 8-supporter; The 9-contact electrode.
Embodiment
As shown in the figure, spring interconnection system electret microphone comprises:
Have the metal shell 1 of opening, the opening part of metal shell 1 is equipped with wiring board 11, and the inboard of wiring board 11 is provided with FET 10, and the bottom of metal shell 1 is provided with hole 12, and the inner bottom surface of metal shell 1 is provided with Air Filter 2;
Be installed in the capacitance component of metal shell 1 inside, capacitance component comprises vibrating diaphragm 3, insulation spacer 4 and the back pole plate 5 that sets gradually from bottom to top;
Coupling assembling, coupling assembling comprise the damping 7 and supporter 8 that is successively set on the back pole plate 5, and supporter 8 is arranged on the inboard of wiring board 11, and the medium position of damping 7 and supporter 8 correspondence respectively is provided with containing hole;
Coupling assembling also comprises the contact electrode 9 that is installed in the containing hole, and contact electrode 9 one ends are provided with and are used for contacting end face with the grid of FET 10 is electrically connected, and the other end is arranged with spring 6, and spring 6 is electrically connected with back pole plate 5.
Be equipped with several through holes on wiring board 11, the supporter 8 and on the back pole plate 5.
Owing to be provided with contact electrode 9, contact electrode 9 one ends are electrically connected with back pole plate 5, and the grid of FET 10 is electrically connected on the end face of the other end and the wiring board 11; Easy to assembly, structure is firm, compares with traditional microphone; Accessory is less; Consistency of product is easy to control, contact electrode 9 be set in the spring 6 on the contact electrode 9, it is low to be easy to processing and cost.
Because wiring board 11, supporter 8 and back pole plate 5 are provided with through hole; Microphone one side noise passes the through hole on the wiring board, the through hole on the supporter 8; Arrive vibrating diaphragm 3 through overdamp 7 and back pole plate 5; And the opposite side noise arrives vibrating diaphragm 3 through the sound hole 12 on the metal shell 1, and the noise of both sides is cancelled out each other, and the utility model noise jamming is low.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (2)
1. spring interconnection system electret microphone comprises:
Metal shell with opening, the opening part of said metal shell is equipped with wiring board, and the inboard of said wiring board is provided with FET, and the bottom of said metal shell is provided with hole, and the inner bottom surface of said metal shell is provided with Air Filter;
Be installed in the inner capacitance component of said metal shell, said capacitance component comprises vibrating diaphragm, insulation spacer and the back pole plate that sets gradually from bottom to top;
Coupling assembling, said coupling assembling comprise damping and the supporter that is successively set on the said back pole plate, and said supporter is arranged on the inboard of said wiring board, and the medium position of said damping and supporter correspondence respectively is provided with containing hole; It is characterized in that:
Said coupling assembling also comprises the contact electrode that is installed in the said containing hole, and said contact electrode one end is provided with and is used for contacting end face with the grid of said FET is electrically connected, and the other end is arranged with spring, and said spring is electrically connected with said back pole plate.
2. spring interconnection system electret microphone as claimed in claim 1 is characterized in that: be equipped with several through holes on said wiring board, supporter and the back pole plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200352473U CN202444619U (en) | 2012-02-03 | 2012-02-03 | Spring connection type electret microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200352473U CN202444619U (en) | 2012-02-03 | 2012-02-03 | Spring connection type electret microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444619U true CN202444619U (en) | 2012-09-19 |
Family
ID=46826049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200352473U Expired - Fee Related CN202444619U (en) | 2012-02-03 | 2012-02-03 | Spring connection type electret microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202444619U (en) |
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 |
| CN111225327A (en) * | 2019-11-27 | 2020-06-02 | 湖南声仪测控科技有限责任公司 | Simple microphone |
-
2012
- 2012-02-03 CN CN2012200352473U patent/CN202444619U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN111225327A (en) * | 2019-11-27 | 2020-06-02 | 湖南声仪测控科技有限责任公司 | Simple microphone |
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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: 20120919 Termination date: 20140203 |