CN206118018U - Electret -type capacitor microphone - Google Patents
Electret -type capacitor microphone Download PDFInfo
- Publication number
- CN206118018U CN206118018U CN201621000172.XU CN201621000172U CN206118018U CN 206118018 U CN206118018 U CN 206118018U CN 201621000172 U CN201621000172 U CN 201621000172U CN 206118018 U CN206118018 U CN 206118018U
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- sound
- electret
- ring
- shell
- type capacitor
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Abstract
The utility model discloses an electret -type capacitor microphone, which comprises an outer shell, the dead ring piece, the sound membrane, the insulating pad, back electrode plate, the damping fin, the damping sheet, go -between and circuit board, this shell has a holding chamber, be equipped with a plurality of sound holes that advance in this holding chamber bottom, this dead ring piece is cyclic annular vertical the installation in the holding chamber, this sound membrane, insulating pad and back electrode plate stack gradually and install in the holding chamber, and all be located the dead ring piece, formant chamber between sound membrane and back electrode plate, be provided with a plurality of sound holes on back electrode plate, above -mentioned damping fin, the damping sheet, go -between and circuit board stack gradually to be installed in the back electrode plate top, and be provided with the through -hole on damping sheet and circuit board. By this, separating sound membrane, back electrode plate and shell through adopt the dead ring piece in the microphone, playing and prevent the short circuit effect, this dead ring piece is wider in temperature resistant degree performance, insulating properties last selection space, and it is more convenient that processing is makeed, and the space that the part occupy is littleer.
Description
Technical field
This utility model is related to acoustic-electric conversion art technology, refers in particular to a kind of electret-type capacitor microphone.
Background technology
Microphone is a kind of electronic device of transmission sound, is mainly used in for acoustical signal being converted to the signal of telecommunication, and tradition is passed
Sound device mainly includes electret-type microphone and silicon sheet type microphone, and wherein electret-type microphone mainly includes shell, dust-proof
Net, diaphragm, annular gasket, back pole plate, connection ring and circuit board.Annular gasket makes certain distance is kept between back pole plate and diaphragm
Plane-parallel capacitor is formed, when sound waves are transmitted to diaphragm by the sound hole on shell, by the vibration of diaphragm, changes film
The distance of the plane-parallel capacitor formed between piece and back pole plate, is allowed to produce a current signal, realizes the mesh of acoustic-electric conversion
's.But, cavity is suppressed using plastic mould in this kind of microphone, insulated cavity is formed, above-mentioned each part is installed on into insulated cavity
In, to avoid being short-circuited with shell, this insulated cavity complex manufacturing, high cost, also, traditional microphones noise is big,
Damping is unstable, for the signal conversion tool of microphone has a significant impact.Therefore, tackle existing microphone to be improved, to solve
Certainly the problems referred to above.
Utility model content
In view of this, disappearance of this utility model for prior art presence, its main purpose are to provide a kind of electret
Formula condenser microphone, by being separated sound film, back pole plate and shell using insulation ring plate in microphone, is played anti-short circuit and is made
With selection space of the insulation ring plate in temperature resistance energy, insulating properties is wider, and processing and fabricating is more convenient, what part took
Space is less.
For achieving the above object, this utility model is using such as purgation technical scheme：
A kind of electret-type capacitor microphone, include shell, the Air Filter being installed in shell, insulation ring plate, sound film,
Insulation spacer, back pole plate, damping fin, damping sheet, connection ring and circuit board, the shell have a containing cavity, in the containing cavity bottom
Portion is provided with a plurality of sound inlets, and the Air Filter is installed on containing cavity bottom, and covers above-mentioned a plurality of sound inlets；The insulation
Ring plate is annularly vertically arranged in containing cavity, and sound film, insulation spacer and the back pole plate are stacked gradually and be installed in containing cavity, and
It is respectively positioned in insulation ring plate, sound chamber is formed between sound film and back pole plate, a plurality of senders are provided with back pole plate, it is above-mentioned
Damping fin, damping sheet, connection ring and circuit board are stacked gradually and are installed on above back pole plate, and are provided with damping sheet a plurality of
The a plurality of first through hole being connected with above-mentioned sender, on circuit board, corresponding first through hole is provided with a plurality of second and leads to
Hole.
As a kind of preferred version：The insulation ring plate is macromolecule membrane material.
As a kind of preferred version：Sponge and back cavity pad are disposed between the back pole plate and damping fin, and after this
Chamber pad is in a ring.
As a kind of preferred version：It is wholely set below the sound film for sound film to be tightened the taut film ring for strutting, should
Taut film ring is located above Air Filter.
As a kind of preferred version：The ring plate lamellar in a ring that insulate.
As a kind of preferred version：The shell is cylindrical.
This utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology
Knowable to scheme, by being separated sound film, back pole plate and shell using insulation ring plate in microphone, anti-short circuit effect is played, is somebody's turn to do
Insulation ring plate suppresses cavity relative to traditional plastic mould, and the selection space on temperature resistance energy, insulating properties in material is more
Extensively, processing and fabricating is more convenient, and the space that part takes is less, and design has more motility；Also, damping fin is set in microphone
Make microphone acoustic damping more careful stable with damping sheet, tonequality is more preferable.
More clearly to illustrate architectural feature of the present utility model and effect, come right with specific embodiment below in conjunction with the accompanying drawings
Which is described in detail.
Description of the drawings
Microphone schematic perspective views of the Fig. 1 for this utility model；
Microphone cross-sectional schematics of the Fig. 2 for this utility model；
Microphone decomposing schematic representations of the Fig. 3 for this utility model；
Fig. 4 is enlarged diagram at the M of Fig. 2.
Accompanying drawing identifier declaration：
10th, shell 11, containing cavity
12nd, sound inlet 20, insulation ring plate
30th, Air Filter 40, sound film
41st, stretch tight film ring 50, insulation spacer
60th, back pole plate 61, sender
70th, sponge 80, back cavity pad
90th, damping fin 100, damping sheet
101st, first through hole 110, connection ring
120th, circuit board 121, the second through hole
130th, sound chamber.
Specific embodiment
As shown in Figures 1 to 4, a kind of electret-type capacitor microphone includes shell 10, is installed on outward this utility model
Insulation ring plate 20, Air Filter 30 in shell 10, sound film 40, insulation spacer 50, back pole plate 60, sponge 70, back cavity pad 80, damping fin
90th, damping sheet 100, connection ring 110 and circuit board 120, wherein：
The shell 10 is cylindrical, and which has a containing cavity 11, is provided with 11 bottom of containing cavity a plurality of for receiving
The sound inlet 12 of collection sound.
The Air Filter 30 is installed on 11 bottom of containing cavity, and covers above-mentioned a plurality of sound inlets 12.The Air Filter 30 is adopted
With metal material, sound inlet 12 takes micropore to enter sound design, you can meet sound head waterproof and dustproof function, while taking into account screen
Function is covered, shield effectiveness can be obviously improved.
The insulation ring plate 20 is macromolecule membrane material, and which is laminar in a ring, is vertically arranged in accommodating cavity 11, will
Sound film 40 and back pole plate 60 are kept apart with shell 10, and the insulation ring plate 20 is abandoned using traditional plastic mould compacting cavity, is adopted
High molecular film material replaces, and the selection space on temperature resistance energy, insulating properties in material is wider, makes processing and fabricating more square
Just, the space that part takes is less, and design has more motility.
The sound film 40, insulation spacer 50 and back pole plate 60 are stacked gradually and are installed in containing cavity 11, and are respectively positioned on dead ring
In piece 20, sound chamber 130 is formed between sound film 40 and back pole plate 60, has been wholely set below the sound film 40 for sound film 40 is stretched tight
The taut film ring 41 for tightly strutting, the taut film ring 41 are located above above-mentioned Air Filter 30；Be provided with back pole plate 60 it is a plurality of go out sound
Hole 61, above-mentioned sponge 70, annular back cavity pad 80, damping fin 90, damping sheet 100, connection ring 110 and circuit board 120 stack gradually
It is installed on above back pole plate 60, and a plurality of first through hole being connected with above-mentioned sender 61 is provided with damping sheet 100
101, on circuit board 120, corresponding first through hole 101 is provided with the second through hole 121；Microphone Bian air dampings and gap
The modular design that damping combines, makes acoustic damping more careful stable.
Design focal point of the present utility model is, by microphone using insulation ring plate by sound film, back pole plate with it is outer
Shell separates, and plays anti-short circuit effect, and the insulation ring plate suppresses cavity relative to traditional plastic mould, in the temperature resistance of material
Selection space in energy, insulating properties is wider, and processing and fabricating is more convenient, and the space that part takes is less, and design has more motility；
Also, damping fin and damping sheet are arranged in microphone makes microphone acoustic damping more careful stable, and tonequality is more preferable.
The above, is only preferred embodiment of the present utility model, and not technical scope of the present utility model is made
Any restriction, thus it is every according to technical spirit of the present utility model to any trickle amendment made for any of the above embodiments, equivalent become
Change and modification, still fall within the range of technical solutions of the utility model.
Claims (6)
1. a kind of electret-type capacitor microphone, it is characterised in that：Include shell, the Air Filter being installed in shell, insulation
Ring plate, sound film, insulation spacer, back pole plate, damping fin, damping sheet, connection ring and circuit board, the shell have a containing cavity, in
The containing cavity bottom is provided with a plurality of sound inlets, and the Air Filter is installed on containing cavity bottom, and cover it is above-mentioned it is a plurality of enter
Sound hole；The insulation ring plate is annularly vertically arranged in containing cavity, and sound film, insulation spacer and the back pole plate are stacked gradually and be installed on
In containing cavity, and it is respectively positioned in insulation ring plate, sound chamber is formed between sound film and back pole plate, is provided with back pole plate a plurality of
Sender, above-mentioned damping fin, damping sheet, connection ring and circuit board are stacked gradually and are installed on above back pole plate, and on damping sheet
A plurality of a plurality of first through hole being connected with above-mentioned sender are provided with, corresponding first through hole is provided with multiple on circuit board
Several second through holes.
2. electret-type capacitor microphone according to claim 1, it is characterised in that：The insulation ring plate is that macromolecule is thin
Membrane material.
3. electret-type capacitor microphone according to claim 1, it is characterised in that：Between the back pole plate and damping fin
Sponge and back cavity pad are disposed with, and the back cavity pad is in a ring.
4. electret-type capacitor microphone according to claim 1, it is characterised in that：It has been wholely set below the sound film
For sound film to be tightened the taut film ring for strutting, the taut film ring is located above Air Filter.
5. electret-type capacitor microphone according to claim 1, it is characterised in that：The ring plate piece in a ring that insulate
Shape.
6. electret-type capacitor microphone according to claim 1, it is characterised in that：The shell is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621000172.XU CN206118018U (en) | 2016-08-31 | 2016-08-31 | Electret -type capacitor microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621000172.XU CN206118018U (en) | 2016-08-31 | 2016-08-31 | Electret -type capacitor microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206118018U true CN206118018U (en) | 2017-04-19 |
Family
ID=58515670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621000172.XU Active CN206118018U (en) | 2016-08-31 | 2016-08-31 | Electret -type capacitor microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206118018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510796A (en) * | 2020-05-25 | 2020-08-07 | 杭州迪喾软件科技有限公司 | Prevent short circuit equipment based on network switch circuit board after weing |
-
2016
- 2016-08-31 CN CN201621000172.XU patent/CN206118018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510796A (en) * | 2020-05-25 | 2020-08-07 | 杭州迪喾软件科技有限公司 | Prevent short circuit equipment based on network switch circuit board after weing |
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