JPS6119417U - Negative pressure detector for fluid filter - Google Patents

Negative pressure detector for fluid filter

Info

Publication number
JPS6119417U
JPS6119417U JP10367484U JP10367484U JPS6119417U JP S6119417 U JPS6119417 U JP S6119417U JP 10367484 U JP10367484 U JP 10367484U JP 10367484 U JP10367484 U JP 10367484U JP S6119417 U JPS6119417 U JP S6119417U
Authority
JP
Japan
Prior art keywords
light
negative pressure
receiving element
fluid filter
pressure chamber
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.)
Granted
Application number
JP10367484U
Other languages
Japanese (ja)
Other versions
JPS64987Y2 (en
Inventor
勝 雨宮
Original Assignee
東京濾器株式会社
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 東京濾器株式会社 filed Critical 東京濾器株式会社
Priority to JP10367484U priority Critical patent/JPS6119417U/en
Publication of JPS6119417U publication Critical patent/JPS6119417U/en
Application granted granted Critical
Publication of JPS64987Y2 publication Critical patent/JPS64987Y2/ja
Granted 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) [Abstract] 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 the drawing]

、 第１，図は従来の流体フィルタ用負圧検出器の回跨
図、第２図はこの考案の一実施例による流体フィルタ用
負圧検出器の構造図、第３図は本考案の一実施例による
流体フィルタ用負圧検出器の回路図、第４図は本考案の
他の実施例を示す回路図である。 １０・・・・・・フォトインクラプタ、１２・・・・・
・遮光体、２２・・・・・・表示ランプ、２４，２６・
・・・・・電源端子、２８・・・・・・出力端子、３０
・・・・・・ケーシング、３８・・・′・・・ダイヤフ
ラム、４０・・・・・・負圧室、４２・・・・・・大気
室、５８・・・・・・リレーコイル、５８ａ，５８ｂ・
・・・・・リレー接点、ＬＥＤ・・・・・・発光ダイオ
ード、ＰＴ・・・・・・フォトトランジスタ、ＳＣＲ・
・・・・・サイリス− タ。, Figure 1 is a circuit diagram of a conventional negative pressure detector for a fluid filter, Figure 2 is a structural diagram of a negative pressure detector for a fluid filter according to an embodiment of the present invention, and Figure 3 is a circuit diagram of a negative pressure detector for a fluid filter according to an embodiment of the present invention. FIG. 4 is a circuit diagram of a negative pressure detector for a fluid filter according to an embodiment. FIG. 4 is a circuit diagram showing another embodiment of the present invention. 10... Photo Inruptor, 12...
・Light shielding body, 22...Indication lamp, 24, 26・
...Power terminal, 28...Output terminal, 30
...Casing, 38...'...Diaphragm, 40...Negative pressure chamber, 42...Atmospheric chamber, 58...Relay coil, 58a ,58b・
...Relay contact, LED...Light emitting diode, PT...Phototransistor, SCR...
...Syris-ta.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ケーシングと、このケーシングの内部を流体フィルタの
負圧側に連通される負圧室ど大気に連通ずる大気圧室と
に区画するダイヤフラムと、このダイヤフラムに取付け
られ、上記負圧室の負圧を受けて撓むダイヤフラムに伴
って変位する尊光体−と、この遮光体を挾むように配置
さりた発光素子と受光素子の対を含み、常時は遮光体に
よってこの発光素子と受光素子間の光路が遮断されてい
て、上記負圧室の負圧が所定圧以上になったときめ上記
遮光体や変位で上記光路が形成されるフオ・ トインタ
ラプタと、電源が接碑される一対の電源端子と、上記電
源との間に検出出力報知用の負荷回路が接続される１つ
の出力端子と、上記発光素−子および受光素子と上記電
源端子とを結んでこれらの動作電源を印加する内部配線
と、上記受光素予の光検知出力を受けて上記出力端子の
レベルを反転させる出力回路とを備えた流体フィルタ用
負圧検出器。a diaphragm that partitions the inside of the casing into a negative pressure chamber that communicates with the negative pressure side of the fluid filter and an atmospheric pressure chamber that communicates with the atmosphere; It includes a light-emitting element and a light-receiving element arranged to sandwich the light-receiving element, which is displaced as the diaphragm bends, and the light-emitting element and the light-receiving element are placed in between. and when the negative pressure in the negative pressure chamber becomes equal to or higher than a predetermined pressure, the light path is formed by the light shielding member or the displacement, a pair of power supply terminals to which the power supply is connected; one output terminal to which a load circuit for detection output notification is connected to a power source; internal wiring that connects the light emitting element and light receiving element to the power terminal to apply operating power to them; A negative pressure detector for a fluid filter, comprising an output circuit that receives the light detection output of the light receiving element and inverts the level of the output terminal.
JP10367484U 1984-07-11 1984-07-11 Negative pressure detector for fluid filter Granted JPS6119417U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10367484U JPS6119417U (en) 1984-07-11 1984-07-11 Negative pressure detector for fluid filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10367484U JPS6119417U (en) 1984-07-11 1984-07-11 Negative pressure detector for fluid filter

Publications (2)

Publication Number Publication Date
JPS6119417U true JPS6119417U (en) 1986-02-04
JPS64987Y2 JPS64987Y2 (en) 1989-01-11

Family

ID=30663049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10367484U Granted JPS6119417U (en) 1984-07-11 1984-07-11 Negative pressure detector for fluid filter

Country Status (1)

Country Link
JP (1) JPS6119417U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622489U (en) * 1992-06-17 1994-03-25 日本フルハーフ株式会社 Seal structure around the peripheral wall of a refrigerated van type vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127924U (en) * 1978-02-28 1979-09-06
JPS5874120A (en) * 1982-09-30 1983-05-04 Tsuchiya Mfg Co Ltd Clogging detector for air cleaner
JPS58169151U (en) * 1982-04-19 1983-11-11 株式会社土屋製作所 automatic drain fuel filter device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127924U (en) * 1978-02-28 1979-09-06
JPS58169151U (en) * 1982-04-19 1983-11-11 株式会社土屋製作所 automatic drain fuel filter device
JPS5874120A (en) * 1982-09-30 1983-05-04 Tsuchiya Mfg Co Ltd Clogging detector for air cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0622489U (en) * 1992-06-17 1994-03-25 日本フルハーフ株式会社 Seal structure around the peripheral wall of a refrigerated van type vehicle

Also Published As

Publication number Publication date
JPS64987Y2 (en) 1989-01-11

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