JPH0214686U - - Google Patents
Info
- Publication number
- JPH0214686U JPH0214686U JP9155288U JP9155288U JPH0214686U JP H0214686 U JPH0214686 U JP H0214686U JP 9155288 U JP9155288 U JP 9155288U JP 9155288 U JP9155288 U JP 9155288U JP H0214686 U JPH0214686 U JP H0214686U
- Authority
- JP
- Japan
- Prior art keywords
- thermistor
- abnormality
- aperture surface
- detection
- positive
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
Description
第１図は本考案に係る正特性サーミスタ装置の
構成を示す図、第２図は正特性サーミスタ装置の
断面図、第３図は従来の正特性サーミスタ保護回
路を示す回路図である。
１……正特性サーミスタ、７……第１の検出端
、８……第２の検出端、９……検知回路。
FIG. 1 is a diagram showing the configuration of a PTC thermistor device according to the present invention, FIG. 2 is a sectional view of the PTC thermistor device, and FIG. 3 is a circuit diagram showing a conventional PTC thermistor protection circuit. DESCRIPTION OF SYMBOLS 1... Positive characteristic thermistor, 7... First detection end, 8... Second detection end, 9... Detection circuit.
Claims (1)
電極を形成した正特性サーミスタと、前記正特性
サーミスタの開口面における面内抵抗を測定して
前記正特性サーミスタの異常を検知する異常検知
装置とを備えることを特徴とするサーミスタ装置
。 (2) 前記異常検知装置は、前記正特性サーミス
タの開口面の中央部付近に設定された第１の検出
端と、開口面の外周付近に設定された第２の検出
端と、前記検出端間における前記開口面の面内抵
抗を測定して異常を検知する検知回路とを有する
ことを特徴とする実用新案登録請求の範囲第１項
に記載の正特性サーミスタ装置。[Claims for Utility Model Registration] (1) A positive temperature coefficient thermistor in which a number of through holes are formed in an element body and electrodes are formed on both opening faces, and the in-plane resistance at the opening faces of the positive coefficient thermistor is measured. 1. A thermistor device comprising: an abnormality detection device for detecting an abnormality in a positive characteristic thermistor. (2) The abnormality detection device includes a first detection end set near the center of the aperture surface of the PTC thermistor, a second detection end set near the outer periphery of the aperture surface, and the detection end 2. The positive temperature coefficient thermistor device according to claim 1, further comprising a detection circuit for detecting an abnormality by measuring the in-plane resistance of the aperture surface between the openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9155288U JPH0214686U (en) | 1988-07-11 | 1988-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9155288U JPH0214686U (en) | 1988-07-11 | 1988-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0214686U true JPH0214686U (en) | 1990-01-30 |
Family
ID=31316024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9155288U Pending JPH0214686U (en) | 1988-07-11 | 1988-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0214686U (en) |
-
1988
- 1988-07-11 JP JP9155288U patent/JPH0214686U/ja active Pending
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