JPS61114792U - - Google Patents

Info

Publication number
JPS61114792U
JPS61114792U JP20118784U JP20118784U JPS61114792U JP S61114792 U JPS61114792 U JP S61114792U JP 20118784 U JP20118784 U JP 20118784U JP 20118784 U JP20118784 U JP 20118784U JP S61114792 U JPS61114792 U JP S61114792U
Authority
JP
Japan
Prior art keywords
line
detection
electrode
heating element
feed line
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
JP20118784U
Other languages
English (en)
Other versions
JPS643191Y2 (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 JP20118784U priority Critical patent/JPS643191Y2/ja
Publication of JPS61114792U publication Critical patent/JPS61114792U/ja
Application granted granted Critical
Publication of JPS643191Y2 publication Critical patent/JPS643191Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Resistance Heating (AREA)

Description

【図面の簡単な説明】
第1図は本考案の1実施例に係る電気回路展開
図である。 2……発熱体、3……電極、4……検知線、6
A,6B……給電線、7……高抵抗、10……電
圧検知部、11……保護回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 断線、接触不良などの異常を検知する検知線4
    を、発熱体2の端部に接続した電極3に近接させ
    て有する面状発熱体において、電極3の一端と検
    知線4の一端とを接続し、電極3の他端を一方の
    給電線に接続して、前記検知線4の他端を、前記
    給電線とは対向極となる他方の給電線に対し高抵
    抗7を介して接続すると共に、前記一方の給電線
    と検知線4の前記他端との間に、微小電圧の発生
    によつて作動する電圧検知部10を設ける一方、
    この電圧検知部10の作動に応動して給電線への
    通電を断たせる保護回路11を設けたことを特徴
    とする面状発熱体の保護装置。
JP20118784U 1984-12-28 1984-12-28 Expired JPS643191Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20118784U JPS643191Y2 (ja) 1984-12-28 1984-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20118784U JPS643191Y2 (ja) 1984-12-28 1984-12-28

Publications (2)

Publication Number Publication Date
JPS61114792U true JPS61114792U (ja) 1986-07-19
JPS643191Y2 JPS643191Y2 (ja) 1989-01-26

Family

ID=30762738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20118784U Expired JPS643191Y2 (ja) 1984-12-28 1984-12-28

Country Status (1)

Country Link
JP (1) JPS643191Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02172176A (ja) * 1988-11-04 1990-07-03 Ppg Ind Inc 電気で加熱できる透明体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02172176A (ja) * 1988-11-04 1990-07-03 Ppg Ind Inc 電気で加熱できる透明体

Also Published As

Publication number Publication date
JPS643191Y2 (ja) 1989-01-26

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