JPS6057258U - Electromagnetic acoustic transducer - Google Patents
Electromagnetic acoustic transducerInfo
- Publication number
- JPS6057258U JPS6057258U JP11230583U JP11230583U JPS6057258U JP S6057258 U JPS6057258 U JP S6057258U JP 11230583 U JP11230583 U JP 11230583U JP 11230583 U JP11230583 U JP 11230583U JP S6057258 U JPS6057258 U JP S6057258U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic transducer
- circular part
- outer pole
- electromagnetic acoustic
- circular
- 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
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Telephone Set Structure (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
′第１図は従来のこの種の電磁型音響変換器の要部断面
図、第２図は本考案の一実施例による電磁型音響変換の
要部断面図、第３図は本考案の外極 ′ブツシュバック
構造の断面説明図、第４図は本考案の他の実施例による
電磁型音響変換器の要部断面図。
１・・・振動板、２・・・外極（２ａ・・・円形状部品
、２ｂ・・・円環状部品）、３・・・振動板背気室、４
・・・音響膜、１０・・・シェービング部、１１・・・
シェービング未加工部、１２・・・スリット、１３・・
・つぶし加工部。'Figure 1 is a cross-sectional view of a main part of a conventional electromagnetic acoustic transducer of this type, Figure 2 is a cross-sectional view of a main part of an electromagnetic acoustic transducer according to an embodiment of the present invention, and Figure 3 is a cross-sectional view of a main part of an electromagnetic acoustic transducer according to an embodiment of the present invention. FIG. 4 is a sectional view of a main part of an electromagnetic acoustic transducer according to another embodiment of the present invention. 1... Vibration plate, 2... Outer pole (2a... circular part, 2b... circular part), 3... diaphragm back air chamber, 4
...Acoustic membrane, 10...Shaving part, 11...
Shaving unprocessed part, 12...Slit, 13...
・Crushing processing section.
Claims (1)
磁型音響変換器において、環状の壁部を有して凹状に形
成された外極と、該外極凹状底面の中央部を同心円状に
打抜いて円形状部品と円環状部品に分離し、該円形状部
品の外周側縁部円周方向に所要の間隔をおいてシェービ
ングを施し、該シェービング加工を施した円形状部品を
再び円環状部品にブツシュバックすることにより、外極
底面に板厚方向で板厚より小さな値を有する幅の狭いス
リットを設け、該スリットにより振動板背気室音響抵抗
部を形成してなることを特徴とする電磁型音響変換器。In an electromagnetic acoustic transducer consisting of a diaphragm, an inner pole, a coil, a permanent magnet, and an outer pole, the outer pole is formed into a concave shape with an annular wall, and the center part of the concave bottom surface of the outer pole is formed into a concentric circle. The circular part is punched out to separate it into a circular part and an annular part, the outer edge of the circular part is shaved at a required interval in the circumferential direction, and the shaved circular part is shaped into a circular part again. By bushing back the annular part, a narrow slit having a width smaller than the plate thickness in the plate thickness direction is provided on the bottom surface of the outer pole, and the slit forms the diaphragm back air chamber acoustic resistance part. Features of electromagnetic acoustic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11230583U JPS6057258U (en) | 1983-07-21 | 1983-07-21 | Electromagnetic acoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11230583U JPS6057258U (en) | 1983-07-21 | 1983-07-21 | Electromagnetic acoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6057258U true JPS6057258U (en) | 1985-04-22 |
Family
ID=30260393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11230583U Pending JPS6057258U (en) | 1983-07-21 | 1983-07-21 | Electromagnetic acoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057258U (en) |
-
1983
- 1983-07-21 JP JP11230583U patent/JPS6057258U/en active Pending
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