JPS6237394U - - Google Patents

Info

Publication number
JPS6237394U
JPS6237394U JP12905885U JP12905885U JPS6237394U JP S6237394 U JPS6237394 U JP S6237394U JP 12905885 U JP12905885 U JP 12905885U JP 12905885 U JP12905885 U JP 12905885U JP S6237394 U JPS6237394 U JP S6237394U
Authority
JP
Japan
Prior art keywords
electrode
circuit board
printed circuit
insulating block
internal
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
JP12905885U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP12905885U priority Critical patent/JPS6237394U/ja
Publication of JPS6237394U publication Critical patent/JPS6237394U/ja
Pending legal-status Critical Current

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  • Fire-Detection Mechanisms (AREA)

Description

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

第１図は、本考案の実施例を示す縦断面図、第
２図は、第１図の要部拡大図で絶縁ブロツクを示
す図である。 １……イオン化式煙感知器、３……プリント基
板、４……内部イオン室、５……外部イオン室、
８……内部電極、７……中間電極、９……放射線
源、１２……絶縁ブロツク、１５……凸部、１６
……支柱、１８……凹部。 FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is an enlarged view of the main part of FIG. 1, showing an insulating block. 1... Ionization type smoke detector, 3... Printed circuit board, 4... Internal ion chamber, 5... External ion chamber,
8... Internal electrode, 7... Intermediate electrode, 9... Radiation source, 12... Insulating block, 15... Convex portion, 16
...Strut, 18...Recess.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内部イオン室の内部電極に設けられた放射線源
が中間電極の通孔を介して外部イオン室にも放射
されるイオン化式煙感知器において、上記内部電
極を支持し、中央に貫通孔を有する凸部と、その
外周に上記中間電極を支持する支柱と、これらの
支柱の外側の反対面に電界効果トランジスタを収
容する凹部とを備えた絶縁ブロツクが、プリント
基板に重ねられ又、貫通孔に内部電極取付用のロ
ツドが挿入され、プリント基板に固定されている
ことを特徴とするイオン化式煙感知器の絶縁ブロ
ツク。 In an ionization type smoke detector in which a radiation source provided in an internal electrode of an internal ion chamber is also emitted to an external ion chamber via a through hole in an intermediate electrode, a convex portion supporting the internal electrode and having a through hole in the center is used. An insulating block is stacked on the printed circuit board and has a column supporting the intermediate electrode on its outer periphery, and a recess for accommodating a field effect transistor on the opposite surface of the outer side of these columns. An insulating block for an ionization smoke detector, characterized in that an electrode attachment rod is inserted and fixed to a printed circuit board.
JP12905885U 1985-08-24 1985-08-24 Pending JPS6237394U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12905885U JPS6237394U (en) 1985-08-24 1985-08-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12905885U JPS6237394U (en) 1985-08-24 1985-08-24

Publications (1)

Publication Number Publication Date
JPS6237394U true JPS6237394U (en) 1987-03-05

Family

ID=31025292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12905885U Pending JPS6237394U (en) 1985-08-24 1985-08-24

Country Status (1)

Country Link
JP (1) JPS6237394U (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4960787A (en) * 1972-10-12 1974-06-12
JPS526080A (en) * 1975-07-03 1977-01-18 Mitsubishi Electric Corp Production method of semiconductor wafer
JPS5241678A (en) * 1975-09-30 1977-03-31 Toyo Rubber Chemical Ind Co Method of manufacturing composite cushion material
JPS589354U (en) * 1981-07-10 1983-01-21 木下　晴美 sealed cap
JPS58171660A (en) * 1982-03-31 1983-10-08 Matsushita Electric Works Ltd Ionization type smoke sensor
JPS5914763U (en) * 1982-07-22 1984-01-28 インタ−レヂン株式会社 Rust-proof simple trolley

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4960787A (en) * 1972-10-12 1974-06-12
JPS526080A (en) * 1975-07-03 1977-01-18 Mitsubishi Electric Corp Production method of semiconductor wafer
JPS5241678A (en) * 1975-09-30 1977-03-31 Toyo Rubber Chemical Ind Co Method of manufacturing composite cushion material
JPS589354U (en) * 1981-07-10 1983-01-21 木下　晴美 sealed cap
JPS58171660A (en) * 1982-03-31 1983-10-08 Matsushita Electric Works Ltd Ionization type smoke sensor
JPS5914763U (en) * 1982-07-22 1984-01-28 インタ−レヂン株式会社 Rust-proof simple trolley

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