JPS59140598U - Electromagnetic acoustic transducer - Google Patents

Electromagnetic acoustic transducer

Info

Publication number
JPS59140598U
JPS59140598U JP3355583U JP3355583U JPS59140598U JP S59140598 U JPS59140598 U JP S59140598U JP 3355583 U JP3355583 U JP 3355583U JP 3355583 U JP3355583 U JP 3355583U JP S59140598 U JPS59140598 U JP S59140598U
Authority
JP
Japan
Prior art keywords
acoustic transducer
electromagnetic acoustic
diaphragm
slit
outer 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.)
Pending
Application number
JP3355583U
Other languages
Japanese (ja)
Inventor
健二 松谷
Original Assignee
株式会社ナカヨ通信機
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社ナカヨ通信機 filed Critical 株式会社ナカヨ通信機
Priority to JP3355583U priority Critical patent/JPS59140598U/en
Publication of JPS59140598U publication Critical patent/JPS59140598U/en
Pending legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のこの種の電磁型音響変換器の要部断面説
明図、第２図は本考案の一実施例による電磁型音響変換
器の要部断面説明図、第３図は本考案の他の一実施例に
よる電磁型音響変換器の要部断面説明図。 １・・・振動板、２・・・外極、３・・−振動板背気室
、４−　・・・音響膜、１０・・・幅の狭いスリット、
１１・・・幅の狭いスリット１０を設けた薄板。Fig. 1 is a cross-sectional explanatory diagram of a main part of a conventional electromagnetic acoustic transducer of this type, Fig. 2 is a cross-sectional explanatory diagram of a main part of an electromagnetic acoustic transducer according to an embodiment of the present invention, and Fig. 3 is a cross-sectional explanatory diagram of a main part of an electromagnetic acoustic transducer according to an embodiment of the present invention. FIG. 6 is a cross-sectional explanatory diagram of a main part of an electromagnetic acoustic transducer according to another embodiment. 1... diaphragm, 2... outer pole, 3...-diaphragm back air chamber, 4-... acoustic membrane, 10... narrow slit,
11...Thin plate provided with narrow slits 10.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 振動板、内極、コイル、永久磁石および外極よりなる電
磁型音響変換器において、該外極の底面板厚方向に僅少
な狭い幅を有するスリット設け、該スリットにより振動
板の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, a slit having a slight narrow width is provided in the bottom plate thickness direction of the outer pole, and the slit allows the back air chamber acoustics of the diaphragm to be reduced. An electromagnetic acoustic transducer characterized by forming a resistance section.
JP3355583U 1983-03-10 1983-03-10 Electromagnetic acoustic transducer Pending JPS59140598U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3355583U JPS59140598U (en) 1983-03-10 1983-03-10 Electromagnetic acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3355583U JPS59140598U (en) 1983-03-10 1983-03-10 Electromagnetic acoustic transducer

Publications (1)

Publication Number Publication Date
JPS59140598U true JPS59140598U (en) 1984-09-19

Family

ID=30164338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3355583U Pending JPS59140598U (en) 1983-03-10 1983-03-10 Electromagnetic acoustic transducer

Country Status (1)

Country Link
JP (1) JPS59140598U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438215U (en) * 1977-08-23 1979-03-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438215U (en) * 1977-08-23 1979-03-13

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