JPS61219299A - Electret condenser microphone - Google Patents
Electret condenser microphoneInfo
- Publication number
- JPS61219299A JPS61219299A JP6112285A JP6112285A JPS61219299A JP S61219299 A JPS61219299 A JP S61219299A JP 6112285 A JP6112285 A JP 6112285A JP 6112285 A JP6112285 A JP 6112285A JP S61219299 A JPS61219299 A JP S61219299A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- fet
- insulator
- electret condenser
- condenser 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.)
- Pending
Links
- 239000012212 insulator Substances 0.000 claims abstract description 17
- 239000002775 capsule Substances 0.000 claims abstract description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 238000005476 soldering Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000007740 vapor deposition 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はエレクトレットコンデンサマイクロホンに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electret condenser microphone.
従来の技術
第６図は従来のエレクトレットコンデンサマイクロホン
のカプセルの断面図を示すものである。BACKGROUND OF THE INVENTION FIG. 6 shows a sectional view of a capsule of a conventional electret condenser microphone.
第６図において、１はケース、２は振動膜リング、３は
金属蒸着等による金属面を有する振動膜、４はギャップ
スペーサ、５はエレクトレット材料５ａを片面に有する
固定電極、６は絶縁体、７は音響抵抗材、８は固定電極
５に電気的に８ａ部により接触等による接続を行ないカ
プセルの出力を取り出すホット端子であり、Ｂｂ部に絶
縁体６と接着等により固定されている。前述の各部材は
ケース１へ挿入後、カシメ部１ａにより固定される。In FIG. 6, 1 is a case, 2 is a diaphragm ring, 3 is a diaphragm having a metal surface formed by metal vapor deposition, 4 is a gap spacer, 5 is a fixed electrode having an electret material 5a on one side, 6 is an insulator, 7 is an acoustic resistance material, 8 is a hot terminal that is electrically connected to the fixed electrode 5 by contact or the like through a portion 8a and takes out the output of the capsule, and is fixed to a portion Bb with an insulator 6 by adhesive or the like. After each of the above-mentioned members is inserted into the case 1, they are fixed by the caulking portion 1a.
発明が解決しようとする問題点
一般的にエレクトレットコンデンサマイクロホンはＦＥ
ゴを内蔵し、インピーダンス変換される構造となってい
るが、第６図の様にＦＥＴを外部材とするマイクロホン
カプセル単体のものは特殊用途（高級型等）であり、生
産数量も少ない。Problems to be solved by the invention Generally, electret condenser microphones are FE
However, as shown in Fig. 6, a single microphone capsule with an FET as an external material is for special purposes (high-end models, etc.) and is produced in small quantities.
従って、専用構造となるので、絶縁体等の専用金型等が
必要であり、又、ホット出力の取り出し等も複雑化する
のでコストアップは免かれない欠点があった。Therefore, since it has a dedicated structure, a special mold such as an insulator is required, and the process of extracting the hot output becomes complicated, resulting in an unavoidable increase in cost.
本発明は以上の様な欠点を除去し、安価で高性能なエレ
クトレットコンデンサマイクロホンを提供することを目
的とするものである。It is an object of the present invention to eliminate the above-mentioned drawbacks and provide an inexpensive and high-performance electret condenser microphone.
問題点を解決するための手段
本発明は、上記目的を達成するために、空間部を有する
絶縁体を用いて、ＦＥＴとほぼ同一形状を有する接続端
子をこの空間部に収容し、接続端子によりマイクロホン
カプセルの出力を取り出す様に構成したものである。Means for Solving the Problems In order to achieve the above object, the present invention uses an insulator having a space, accommodates a connection terminal having almost the same shape as the FET in this space, and allows the connection terminal to It is configured to take out the output of the microphone capsule.
作用
したがって本発明によれば一般的量産品の絶縁体等の部
品を共用でき安価なエレクトレットコンデンサマイクロ
ホンを作成できるものである。Therefore, according to the present invention, it is possible to make an inexpensive electret condenser microphone by using common mass-produced parts such as insulators.
実施例
以下に本発明の一実施例の構成について、図面とともに
説明する。EXAMPLE Below, the configuration of an example of the present invention will be explained with reference to the drawings.
第１図及び第２図は本発明の一実施例であり、１〜５及
び７は第６図と同様である。1 and 2 show one embodiment of the present invention, and 1 to 5 and 7 are the same as in FIG. 6.
第１図、第２図において６８はＦＥＴを内蔵できる空間
部６ｂを有する絶縁体、９はＦＥＴとほぼ同一形状を有
し空間部６ｂにに収容された接＃！端子であり、第３図
に示す如（、ゲート端子に相当する部分９ａとドレイン
端子及びソース端子に相当する部分９ｂ、９ｃが内部の
チップを廃し、金線９ｄ等により電気的に接続されてい
る。又、部分９ａは固定電極５と接触等により接続され
ており、部分９ｂ、９ｃはプリント基板ｌＯの１０ａ部
に半田付等による接続固定が行なわれている。又、ホッ
ト出力端子１１もプリント基板１０のｌＯａ部に半田付
等により接続固定されている。従って、マイクロホンカ
プセルの出力を電気的に取り出すことが可能である。In FIGS. 1 and 2, 68 is an insulator having a space 6b in which an FET can be built, and 9 is an insulator having almost the same shape as the FET, and a contact point accommodated in the space 6b. As shown in FIG. 3, the portion 9a corresponding to the gate terminal and the portions 9b and 9c corresponding to the drain and source terminals are electrically connected by a gold wire 9d etc. without the internal chip. Further, the portion 9a is connected to the fixed electrode 5 by contact or the like, and the portions 9b and 9c are connected and fixed to the portion 10a of the printed circuit board IO by soldering or the like. It is connected and fixed to the lOa portion of the printed circuit board 10 by soldering or the like.Therefore, it is possible to electrically take out the output of the microphone capsule.
以上の如く構成した場合、絶縁体６ａは一般に大量生産
されているＦＥＴ内蔵の絶縁体を流用できる。又、プリ
ント基板１０も絶縁抵抗の大きい、例えば、ガラスエポ
キシ材等を使えば、ホットとアースの出力端子の絶縁性
も充分なので、ホット出力端子１１の固定に接着等を必
要とせず、半田付等により固定できるので製造上有利で
ある。In the case of the above structure, an insulator with a built-in FET, which is generally mass-produced, can be used as the insulator 6a. In addition, if the printed circuit board 10 is made of a material with high insulation resistance, such as glass epoxy, the hot and ground output terminals will have sufficient insulation, so there is no need for adhesive or the like to fix the hot output terminal 11, and it can be soldered. It is advantageous in terms of manufacturing because it can be fixed by means such as.
第１図の実施例では、第３図の様なＦＥＴを利用した接
続端子を用いた場合について述べたが、ＦＥＴとほぼ同
一形状の専用端子を作成してもよい。又、第３図ではゲ
ートに相当する部分９ａとドレインに相当する部分９ｂ
及びソースに相当する部分９ｃの両方を金線９ｄ等によ
り接続しているが、どちらか一方の接続においても本主
旨と同一である。In the embodiment shown in FIG. 1, a connection terminal using an FET as shown in FIG. 3 is used, but a dedicated terminal having almost the same shape as the FET may be created. In addition, in FIG. 3, a portion 9a corresponding to the gate and a portion 9b corresponding to the drain are shown.
Although the portion 9c corresponding to the source and the portion 9c corresponding to the source are connected by a gold wire 9d or the like, the main idea is the same even if either one is connected.
第４図、第５図は本発明の他の実施例であり、６ｃは第
１図の絶縁体６ａと形状の興なる絶縁体であり、空間部
６ｄを有している。この空間部６ｄにはＦＥＴとほぼ同
一形状を有する接続端子９が収容されている。そして接
続端子９のゲートに相当する部分９ａとドレインに相当
する部分９ｂもしくはソースに相当する部分９Ｃのどち
らか一方を金線９ｄ等により接続し、その接続した部分
を直接ホット端子、他方をアース端子としてプリント基
板１０の１０ａ部に半田付等により固定し、ホット出力
端子１１を廃し、直接、部分９ｂ、９ｃを利用すること
により出力を取り出している。もちろん、アース端子に
相当する方は部分９ｃにより取り出さず、ケース１を用
いても本主旨と同一である。4 and 5 show other embodiments of the present invention, and 6c is an insulator having a shape similar to that of the insulator 6a in FIG. 1, and has a space 6d. A connecting terminal 9 having substantially the same shape as the FET is accommodated in this space 6d. Then, connect either the part 9a corresponding to the gate and the part 9b corresponding to the drain or the part 9C corresponding to the source of the connection terminal 9 with a gold wire 9d, etc., and connect the connected part directly to the hot terminal and the other to ground. The hot output terminal 11 is fixed to the portion 10a of the printed circuit board 10 by soldering or the like as a terminal, and the output is taken out directly by using the portions 9b and 9c. Of course, the main idea is the same even if the case 1 is used without removing the part corresponding to the ground terminal due to the portion 9c.
―明の効果
以上の如く、本発明によれば、高級型等の特殊用途量で
も量産品の構造を用いて、内部々品の共用化が可能であ
るとともに、マイクロホンカプセルの出力端子の取り出
し構造が簡略化されるので、高性能でありながら、安価
なエレクトレットコンデンサマイクロホンを提供できる
利点を有する。- As described above, according to the present invention, it is possible to use the structure of a mass-produced product even in special purpose quantities such as high-end models, and to share the internal parts, and the structure for taking out the output terminal of the microphone capsule is also improved. Since this simplifies the process, it has the advantage of providing a high-performance, yet inexpensive electret condenser microphone.
第１図は本発明の一実施例におけるエレクトレットコン
デンサマイクロホンの断面図、第２図は同底面図、第３
図は′第１図における要部拡大７図、第４図は本発明の
他の実施例を示す断面図、第５図は同底面図、第６図は
従来のエレクトレットコンデンサマイクロホンを示す断
面図である。
３・・・・・・振動膜、４・・・・・・ギヤ・ンプスベ
ーサ、５・・・・・・固定電極、６ａ・・・・・・絶縁
体、６ｂ・・・・・・空間部、９・・・・・・接続端子
、１０・・・・・・プリント基板、１１・・・・・・ホ
ット出力端子。
代理人の氏名 弁理士 中足敏男ｃ壬力Ａ１名５ｄ／。
？Ｃ
σ
Ｇｃ
−危
・ｔｏ６１
□
＼ｎFIG. 1 is a cross-sectional view of an electret condenser microphone according to an embodiment of the present invention, FIG. 2 is a bottom view of the same, and FIG.
The figures are '7 enlarged view of the main parts in Fig. 1, Fig. 4 is a sectional view showing another embodiment of the present invention, Fig. 5 is a bottom view of the same, and Fig. 6 is a sectional view showing a conventional electret condenser microphone. It is. 3...Vibration membrane, 4...Gear pump baser, 5...Fixed electrode, 6a...Insulator, 6b...Space part , 9... Connection terminal, 10... Printed circuit board, 11... Hot output terminal. Agent's name: Patent attorney Toshio Nakatashi C Jinriki A1 person 5d/. ? C σ Gc -Crisis・to61 □ \n
Claims (3)
とほぼ同一形状を有する接続端子を収容し、前記接続端
子によりマイクロホンカプセルの出力を取り出す如く構
成したエレクトレットコンデンサマイクロホン。(1) Use an insulator with a space and place an FET in the space.
An electret condenser microphone is configured to house a connecting terminal having substantially the same shape as the electret condenser microphone and to take out an output from a microphone capsule through the connecting terminal.
子とドレイン又はソースに相当する端子を金線等により
接続した接続端子を有する特許請求の範囲第１項記載の
エレクトレットコンデンサマイクロホン。(2) The electret condenser microphone according to claim 1, which eliminates the internal chip of the FET and has a connection terminal in which a terminal corresponding to a gate and a terminal corresponding to a drain or source are connected by a gold wire or the like.
スに相当する端子を直接ホット又はアースのリード端子
として構成した特許請求の範囲第１項または第２項記載
のエレクトレットコンデンサマイクロホン。(3) The electret condenser microphone according to claim 1 or 2, wherein the terminal corresponding to the drain or source of the connecting terminal having the same shape as the FET is configured as a direct hot or ground lead terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6112285A JPS61219299A (en) | 1985-03-26 | 1985-03-26 | Electret condenser microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6112285A JPS61219299A (en) | 1985-03-26 | 1985-03-26 | Electret condenser microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61219299A true JPS61219299A (en) | 1986-09-29 |
Family
ID=13161953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6112285A Pending JPS61219299A (en) | 1985-03-26 | 1985-03-26 | Electret condenser microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61219299A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0397975A2 (en) * | 1989-05-19 | 1990-11-22 | Gentex Corporation | Method of making a variable capacitor microphone |
| JP2008072583A (en) * | 2006-09-15 | 2008-03-27 | Audio Technica Corp | Unidirectional condenser microphone unit |
| JP2008160625A (en) * | 2006-12-26 | 2008-07-10 | Audio Technica Corp | Electret condenser microphone unit and electret condenser microphone |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829678U (en) * | 1981-08-18 | 1983-02-25 | リンフオ−ス工業株式会社 | flush toilet |
-
1985
- 1985-03-26 JP JP6112285A patent/JPS61219299A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829678U (en) * | 1981-08-18 | 1983-02-25 | リンフオ−ス工業株式会社 | flush toilet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0397975A2 (en) * | 1989-05-19 | 1990-11-22 | Gentex Corporation | Method of making a variable capacitor microphone |
| JP2008072583A (en) * | 2006-09-15 | 2008-03-27 | Audio Technica Corp | Unidirectional condenser microphone unit |
| JP2008160625A (en) * | 2006-12-26 | 2008-07-10 | Audio Technica Corp | Electret condenser microphone unit and electret condenser microphone |
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