CN201094162Y - Condenser microphone - Google Patents
Condenser microphone Download PDFInfo
- Publication number
- CN201094162Y CN201094162Y CNU2007201772137U CN200720177213U CN201094162Y CN 201094162 Y CN201094162 Y CN 201094162Y CN U2007201772137 U CNU2007201772137 U CN U2007201772137U CN 200720177213 U CN200720177213 U CN 200720177213U CN 201094162 Y CN201094162 Y CN 201094162Y
- Authority
- CN
- China
- Prior art keywords
- mentioned
- housing
- condenser microphone
- acoustic pressure
- back pole
- 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 - Lifetime
Links
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 239000012212 insulator Substances 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 4
- 238000009423 ventilation Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 210000002683 foot Anatomy 0.000 description 10
- 239000012528 membrane Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- SXZSFWHOSHAKMN-UHFFFAOYSA-N 2,3,4,4',5-Pentachlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC(Cl)=C(Cl)C(Cl)=C1Cl SXZSFWHOSHAKMN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/01—Electrostatic transducers characterised by the use of electrets
- H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/04—Structural association of microphone with electric circuitry therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
- H04R2201/029—Manufacturing aspects of enclosures transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The utility model relates to a capacitance microphone, which removes a dredge groove used for ventilation from a shell in order to improve the flatness of the surface of the shell, thereby enhancing the property of timbre. The capacitance microphone provided by the utility model is composed of the following parts: the shell, an opening ring, a vibration board, a divider, an insulation pedestal, a back plate, a conducting base and a PCB, wherein, the shell is a cylindricality with one side opening, the bottom surface is flat so as to form an audio hole; the opening ring is a gasket shape with one side chapped, the opening ring is arranged on the bottom surface of the shell and used for playing ventilation function; the vibration board is arranged on the opening ring; the insulation pedestal is arranged in the shell and is positioned above the divider; the back plate forms an audio hole which is insulated form the back plate by dint of small space between the divider and the vibration board, and is insulated from the shell by the dint of the insulation pedestal; the conducting base is inserted into the inner side of the insulation pedestal, and is electrically insulated from the shell, and is also used for enabling the back plate to conducting electricity.
Description
Technical field
The utility model relates to condenser microphone, in more detail, relates to following condenser microphone, removes the mediation groove that is used for circulation of air from housing, improving the flatness of housing basal surface, thereby improves the tonequality characteristic.
Background technology
Typical condenser microphone is by constituting as the lower part: biased element (being formed by electret usually); Vibrating membrane/back pole plate is right, and it is used to form the capacitor (C) that changes accordingly with acoustic pressure (sound pressure); And junction field effect transistor (JFET), it is used for the buffer memory output signal., form electret on electret capacitor microphone any one in vibrating membrane or back pole plate herein, this electret is by forcing iunjected charge to form to organic membrane.
Fig. 1 is the side cross-sectional view of existing condenser microphone assembly, and Fig. 1 (a) is the side cross-sectional view of condenser microphone integral body, and Fig. 1 (b) is the local amplification sectional view of the microphone shown in Fig. 1 (a).
With reference to Fig. 1, the structure of existing condenser microphone assembly is as follows: the basal surface at housing 102 forms sound hole 102a, after oscillating plate 104, sept 106, insulator foot 108, back pole plate 110 and conductive seat 112 that housing 102 inner insertions are formed by vibrating membrane and polar ring (polar ring), be installed at last on the PCB114, with the end curling (curling) of housing.
At this moment, conductive seat 112 not only plays the electrical signal transfer that will send from microphone unit (oscillating plate/back of the body electret) to being installed on the JFET on the PCB114 or the effect of amplifier, also plays to be inserted into the inner parts effect of mechanical fixation securely.
And, finish by curling under the situation of microphone assembling, in order to shield the circulation of air between back of the body chamber and the leading space, shown in the enlarged drawing of Fig. 1 (b), basal surface to housing 102 carries out embossment (embossing) processing, to be formed for the mediation groove 102b of circulation of air.But, as mentioned above, under the situation of the mediation groove 102b that is formed for circulation of air on the basal surface of housing, the flatness of housing basal surface descends, cause tonequality characteristic variation, air mass flow is indefinite, raw-material thin thickness, be difficult to revise the embossment position to adjust air mass flow, the bad phenomenon that the basal surface of housing breaks might take place.
The utility model content
The utility model proposes in order to address the above problem, and its purpose is, a kind of condenser microphone is provided, and wherein, removes the mediation groove that is used for circulation of air from housing, improving the flatness of housing basal surface, thereby improves the tonequality characteristic.
In order to achieve the above object, condenser microphone of the present utility model is by constituting as the lower part: housing, and it is the tubular of an opening, basal surface is smooth and form sound hole; Split ring (silt ring), it is the packing ring shape that a side is split, and is arranged at the basal surface of above-mentioned housing, the function of performance mediation air; Oscillating plate, it is arranged on the above-mentioned split ring; Sept; Insulator foot, it is built in the above-mentioned housing and is positioned on the above-mentioned sept; Back pole plate, it forms sound hole, by means of above-mentioned sept and above-mentioned oscillating plate be separated by short space and with its electric insulation, and by means of above-mentioned insulator foot and above-mentioned housing electric insulation; Conductive seat, it is inserted in the inboard of above-mentioned insulator foot, with above-mentioned housing electric insulation, is used to make above-mentioned back pole plate conduction; And PCB, on it, be equipped with and be used to handle by above-mentioned oscillating plate and back pole plate semiconductor element to the change signal of the electrostatic capacitance that forms, and this PCB finally is installed to above-mentioned housing in the mode that is positioned at above-mentioned conductive seat top, and the terminal of curling and above-mentioned housing that passes through above-mentioned housing closely contacts, on this PCB, be formed with conductive pattern and splicing ear, this conductive pattern is used for above-mentioned semiconductor element and above-mentioned oscillating plate and back pole plate being electrically connected, and this splicing ear is used for the signal that above-mentioned semiconductor element is handled is delivered to the outside.
Description of drawings
Fig. 1 is the figure that existing condenser microphone is shown.
Fig. 2 is the figure that condenser microphone of the present utility model is shown.
Fig. 3 is the vertical view that split ring of the present utility model is shown.
Symbol description
102,202 housings; 204 split rings; 104 oscillating plates; 106 septs; 108 insulator foots; 110 back pole plates; 112 conductive seats; 114 PCB
Embodiment
Below, with reference to accompanying drawing, describe preferred embodiment of the present utility model in detail.
Fig. 2 is the figure that condenser microphone of the present utility model is shown, Fig. 2 (a) is the side cross-sectional view of condenser microphone integral body, Fig. 2 (b) is the local amplification sectional view of the microphone shown in Fig. 2 (a), and Fig. 3 is the expression vertical view that is used for the split ring of circulation of air of the present utility model.
As shown in Figure 2, condenser microphone of the present utility model is by constituting as the lower part: housing 202, and it is the tubular of an opening, basal surface is smooth and form sound hole; Split ring 204, it is the packing ring shape that a side is split, and is arranged at the basal surface of housing, the function of performance mediation air; Oscillating plate 104, it is arranged on the split ring 204; Sept 106; Insulator foot 108; Back pole plate 110; Conductive seat 112; And PCB114.This condenser microphone of the present utility model is assembled in the following way: after being inserted into split ring 204, oscillating plate 104, sept 106, insulator foot 108, back pole plate 110, conductive seat 112 and PCB 114 in the housing 202 successively, the end of housing is curled, assemble.
With reference to Fig. 2, shown in the enlarged drawing of Fig. 2 (b), housing 202 is the tubular that basal surface does not form the flat structures of mediation groove, and inside is equipped with various parts, by end is curled and bending, with the supporting internal part.As shown in Figure 3, split ring 204 is a side opening with the packing ring shape of the slit 204a that is formed for dredging air, closely contact with the basal surface of housing 202, thereby the conductivity of providing, so that the polar ring of oscillating plate 104 is electrically connected with housing 202, and by slit 204a, the air in back of the body chamber can be dredged the place ahead.
Oscillating plate 104 forms the structure that is pasted with vibrating membrane on the polar ring, this oscillating plate 104 is arranged on the split ring 204, sept 106 makes the small space of formation between back pole plate 110 and the oscillating plate 104, and performance function that back pole plate 110 and oscillating plate 104 are electrically insulated from each other.
Insulator foot 108 is arranged on the sept 106, and be inserted between housing 202 and back pole plate 110 and the conductive seat 112, the function that performance is insulated from each other with housing 202 and back pole plate 110 and conductive seat 112, back pole plate 110 forms in pressing on the metallic plate to be had organic membrane and is formed with the structure of electret on the organic membrane, and this back pole plate 110 is opposed across sept 106 and oscillating plate 104.
Conductive seat 112 closely contacts with the metallic plate of back pole plate 110, play the effect that back pole plate 110 is electrically connected with PCB substrate 114, PCB114 with face that conductive seat 112 is connected on be formed with conductive pattern, and, installed inside has not shown semiconductor devices such as JFET, on the outer peripheral face in the outside, be formed with and be used for the conductive pattern that is connected with housing 202, and, be formed with in medial side and be used for and outside connection terminals.
In the above-mentioned condenser microphone of the present utility model, need not on the basal surface of housing 202, to be formed for the mediation groove of circulation of air, therefore, make housing easily, and, the housing defective can be prevented, the flatness of housing is good, can improve the tonequality characteristic of the microphone of finishing assembling.
Then, the action of the microphone of the present utility model that constitutes in the above described manner of following explanation.
Usually, condenser microphone has utilized following characteristic: oscillating plate and back pole plate to interposed structure in, oscillating plate vibrates by means of external sound source, the distance between oscillating plate and the back pole plate changes thereupon, electrostatic capacitance changes.
And, consider the tonequality characteristic of condenser microphone oscillating plate is reacted to vibrate to external sound source delicately that for this reason, the circulation of air of enclosure interior is particularly important.Especially, must make the air pressure of leading space at the air pressure that is formed at the back of the body cavity space between back pole plate and conductive seat and the PCB and oscillating plate place identical, for this reason, provide particularly important to the air communication channel of oscillating plate front from back of the body chamber.
In the condenser microphone of the present utility model, the basal surface of housing 202 is smooth, even internal part curls situation about closely contacting because of housing under, also can provide the air communication channel between back of the body chamber and the place ahead by the slit 204a of split ring 204.Promptly, the acoustic pressure that flows into from the outside by the sound hole 202a that is formed at housing 202 makes oscillating plate 104 vibrations, the acoustic pressure that produces in inside along with the vibration of oscillating plate 104 is delivered to back of the body chamber by the sound hole that is formed at back pole plate 110, the acoustic pressure in back of the body chamber is by being formed at the slit between conductive seat 112 and the PCB114, flow out to the space between housing 202 and the insulator foot 108, the slit by insulator foot 108 both sides and the slit 204a of split ring of the present utility model 204 flow out to the sound hole 202a in the place ahead.
And the signal of telecommunication that electrostatic capacitance change produced between oscillating plate 104 and the back pole plate 110 is delivered on the not shown circuit element of PCB substrate 114 by circuit, and this circuit comprises: by the circuit of oscillating plate 104 and split ring 204, housing 202; And the circuit that passes through back pole plate 110 and conductive seat 112.
As mentioned above, in the condenser microphone of the present utility model, need not on housing, to be formed for dredging the groove of air, therefore, make housing easily, and, can prevent the housing defective, the flatness of housing is good, can more significantly improve the tonequality characteristic of the microphone of finishing assembling.
Claims (5)
1. a condenser microphone is characterized in that, this condenser microphone is by constituting as the lower part:
Housing, it is the tubular of an opening, basal surface is smooth and form sound hole;
Split ring, it is the packing ring shape that a side is split, and is arranged at the basal surface of above-mentioned housing, the function of performance mediation air;
Oscillating plate, it is arranged on the above-mentioned split ring;
Sept;
Insulator foot, it is built in the above-mentioned housing and is positioned on the above-mentioned sept;
Back pole plate, it forms sound hole, by means of above-mentioned sept and above-mentioned oscillating plate be separated by short space and with its electric insulation, and by means of above-mentioned insulator foot and above-mentioned housing electric insulation;
Conductive seat, it is inserted in the inboard of above-mentioned insulator foot, with above-mentioned housing electric insulation, is used to make above-mentioned back pole plate conduction; And
PCB, on it, be equipped with and be used to handle by above-mentioned oscillating plate and back pole plate semiconductor element to the change signal of the electrostatic capacitance that forms, and this PCB finally is installed to above-mentioned housing in the mode that is positioned at above-mentioned conductive seat top, and the terminal of curling and above-mentioned housing that passes through above-mentioned housing closely contacts, on this PCB, be formed with conductive pattern and splicing ear, this conductive pattern is used for above-mentioned semiconductor element and above-mentioned oscillating plate and back pole plate being electrically connected, and this splicing ear is used for the signal that above-mentioned semiconductor element is handled is delivered to the outside.
2. condenser microphone according to claim 1 is characterized in that, above-mentioned split ring is circular rings or four square rings.
3. condenser microphone according to claim 1, it is characterized in that, when utilizing the acoustic pressure that flows into by the sound Kong Ercong outside that is formed at above-mentioned housing to make above-mentioned vibration plate vibrates, the acoustic pressure that produces in inside along with the vibration of above-mentioned oscillating plate is delivered to back of the body chamber by the sound hole that is formed at above-mentioned back pole plate, the acoustic pressure in above-mentioned back of the body chamber is via the part between above-mentioned conductive seat and the PCB, by the slit of above-mentioned insulator foot both sides and the opening of above-mentioned split ring, flow out to the sound hole of above-mentioned housing.
4. condenser microphone, this condenser microphone is made of the right mechanical component of involving vibrations plate and back pole plate in housing, and this condenser microphone is characterised in that,
Above-mentioned housing is the tubular of an opening, and basal surface is smooth and form sound hole,
Above-mentioned condenser microphone possesses the acoustic pressure deliverying unit, this acoustic pressure deliverying unit is installed on the basal surface of above-mentioned housing, be used for inner acoustic pressure is discharged to once more the sound hole of above-mentioned housing, wherein, to be above-mentioned oscillating plate by means of the external sound pressure of going into by the sound orifice flow of above-mentioned housing vibrate above-mentioned inner acoustic pressure produces.
5. condenser microphone according to claim 4 is characterized in that, above-mentioned acoustic pressure deliverying unit is a split ring, and this split ring is that a side is split with the packing ring shape of the slit that is formed for dredging air, and is arranged at the basal surface of above-mentioned housing, and can dredge air.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070035531 | 2007-04-11 | ||
| KR1020070035531A KR20080092101A (en) | 2007-04-11 | 2007-04-11 | Condenser microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201094162Y true CN201094162Y (en) | 2008-07-30 |
Family
ID=39902127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201772137U Expired - Lifetime CN201094162Y (en) | 2007-04-11 | 2007-09-29 | Condenser microphone |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20080092101A (en) |
| CN (1) | CN201094162Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300362A (en) * | 2019-07-18 | 2019-10-01 | 东莞市瑞勤电子有限公司 | Electret bone conduction vibrates microphone |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101074732B1 (en) * | 2010-12-14 | 2011-10-18 | 주식회사 비에스이 | Vacuum adsorption mounted condenser microphone structure and its mounting method |
-
2007
- 2007-04-11 KR KR1020070035531A patent/KR20080092101A/en not_active Ceased
- 2007-09-29 CN CNU2007201772137U patent/CN201094162Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300362A (en) * | 2019-07-18 | 2019-10-01 | 东莞市瑞勤电子有限公司 | Electret bone conduction vibrates microphone |
| CN110300362B (en) * | 2019-07-18 | 2024-06-07 | 东莞市瑞勤电子有限公司 | Electret bone conduction vibration microphone |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080092101A (en) | 2008-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8842858B2 (en) | Electret condenser microphone | |
| US8023670B2 (en) | Stray capacitance reduced condenser microphone | |
| KR101276353B1 (en) | Multi-function microphone assembly and method of making the same | |
| CN201197187Y (en) | Vibration plate forming air groove and capacitance microphone using the same | |
| US20080037815A1 (en) | Condenser microphone | |
| JP2011114506A (en) | Microphone unit | |
| CN201207729Y (en) | Seat integrated case and capacitive microphone using the case | |
| CN202135311U (en) | Microphone | |
| CN202135313U (en) | Microphone | |
| CN201094162Y (en) | Condenser microphone | |
| TW200814831A (en) | Electret condenser microphone | |
| CN201118978Y (en) | electret microphone | |
| KR20130062569A (en) | Microphone assembly having ear set function and method of making the same | |
| CN102075841B (en) | Electret microphone | |
| JP2009260573A (en) | Microphone unit and its manufacturing method | |
| CN201042076Y (en) | Capacitance type microphone | |
| CN101257736B (en) | Miniature capacitor type microphone | |
| US10939192B2 (en) | Electret condenser microphone and manufacturing method thereof | |
| KR100606165B1 (en) | Multiple diaphragm for microphone and condenser microphone using same | |
| KR100526022B1 (en) | Condenser microphone | |
| KR100797438B1 (en) | Microphone which does not require a currying process and its assembly method | |
| KR101704516B1 (en) | An insert electric conductor for silicon condenser microphone | |
| CN201577197U (en) | condenser microphone | |
| KR100608461B1 (en) | Condenser microphone for smooth air flow and its manufacturing method | |
| CN101888583B (en) | Headphones with capacitive actuators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |