SE9003448L - PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode - Google Patents

PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode

Info

Publication number
SE9003448L
SE9003448L SE9003448A SE9003448A SE9003448L SE 9003448 L SE9003448 L SE 9003448L SE 9003448 A SE9003448 A SE 9003448A SE 9003448 A SE9003448 A SE 9003448A SE 9003448 L SE9003448 L SE 9003448L
Authority
SE
Sweden
Prior art keywords
polymer composition
free contact
ptc element
associated electrode
makes free
Prior art date
Application number
SE9003448A
Other languages
Swedish (sv)
Other versions
SE9003448D0 (en
Inventor
T Hansson
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE9003448A priority Critical patent/SE9003448L/en
Publication of SE9003448D0 publication Critical patent/SE9003448D0/en
Priority to US07/783,118 priority patent/US5382938A/en
Priority to JP3283174A priority patent/JPH04266001A/en
Priority to CA002054487A priority patent/CA2054487C/en
Priority to EP91118512A priority patent/EP0487920B1/en
Priority to ES91118512T priority patent/ES2094180T3/en
Priority to DE69122216T priority patent/DE69122216T2/en
Priority to AT91118512T priority patent/ATE143169T1/en
Publication of SE9003448L publication Critical patent/SE9003448L/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/022—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient mainly consisting of non-metallic substances

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

The PTC element comprises one body (10) provided with two parallel large surfaces, of an electrically conductive polymer composition with a positive temperature coefficient. Each body is provided with two large preferably parallel surfaces. If a body contacts an electrode, one of its surfaces makes free contact with its associated electrode (11). When there are two or more bodies which contact each other via their large surfaces, one pair of these contacting surfaces make free contact with each other and/or one of the surfaces which contact an electrode makes free contact with its associated electrode. A pressured device is adapted to exert on the electrodes a pressure directed perpendicular to the large surfaces on the bodies. The parallel surfaces on the body of polymer composition may be concentric.
SE9003448A 1990-10-30 1990-10-30 PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode SE9003448L (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE9003448A SE9003448L (en) 1990-10-30 1990-10-30 PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode
US07/783,118 US5382938A (en) 1990-10-30 1991-10-25 PTC element
JP3283174A JPH04266001A (en) 1990-10-30 1991-10-29 Ptc element
CA002054487A CA2054487C (en) 1990-10-30 1991-10-29 Ptc element
EP91118512A EP0487920B1 (en) 1990-10-30 1991-10-30 PTC element
ES91118512T ES2094180T3 (en) 1990-10-30 1991-10-30 COMPONENT WITH POSITIVE TEMPERATURE COEFFICIENT.
DE69122216T DE69122216T2 (en) 1990-10-30 1991-10-30 Component with positive temperature coefficients
AT91118512T ATE143169T1 (en) 1990-10-30 1991-10-30 COMPONENT WITH POSITIVE TEMPERATURE COEFFICIENTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9003448A SE9003448L (en) 1990-10-30 1990-10-30 PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode

Publications (2)

Publication Number Publication Date
SE9003448D0 SE9003448D0 (en) 1990-10-30
SE9003448L true SE9003448L (en) 1992-05-01

Family

ID=20380762

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9003448A SE9003448L (en) 1990-10-30 1990-10-30 PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode

Country Status (1)

Country Link
SE (1) SE9003448L (en)

Also Published As

Publication number Publication date
SE9003448D0 (en) 1990-10-30

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