JPH0252010U - - Google Patents
Info
- Publication number
- JPH0252010U JPH0252010U JP13137388U JP13137388U JPH0252010U JP H0252010 U JPH0252010 U JP H0252010U JP 13137388 U JP13137388 U JP 13137388U JP 13137388 U JP13137388 U JP 13137388U JP H0252010 U JPH0252010 U JP H0252010U
- Authority
- JP
- Japan
- Prior art keywords
- output
- protection circuit
- control protection
- level value
- relay contact
- 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
- 239000004020 conductor Substances 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Central Heating Systems (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
実施例のタイマ回路の結線図、第３図はタイマ回
路による保護動作の説明図、第４図ａは１線式ヒ
ータ、ｂはその等価回路を示す図、第５図は従来
例の回路図、第６図は異常な短絡事故に対する説
明図である。
１１……ヒユーズ、１２……１線式ヒータ、１
２Ａ……内側導体、１２Ｂ……中間絶縁体、１２
Ｃ……外側導体、１３……保護抵抗Ｒ０、１６…
…比較回路、２０……タイマ回路、１８……リレ
ー、１８Ａ……リレー接点。
Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a wiring diagram of a timer circuit of the embodiment, Fig. 3 is an explanatory diagram of protection operation by the timer circuit, Fig. 4a is a one-wire heater, b is a diagram showing the equivalent circuit, FIG. 5 is a circuit diagram of a conventional example, and FIG. 6 is an explanatory diagram for an abnormal short circuit accident. 11... Fuse, 12... 1-wire heater, 1
2A...Inner conductor, 12B...Intermediate insulator, 12
C...Outer conductor, 13...Protective resistance R 0 , 16...
... Comparison circuit, 20 ... Timer circuit, 18 ... Relay, 18A ... Relay contact.
Claims (1)
て、２本の導体を有し、導体の一方に電流を流し
て発熱し、他方の導体に表われる電圧を温度情報
として、前記発熱導体の電流経路にあるリレー接
点を、リレー駆動回路を動作して、オンオフ制御
させる制御保護回路において、 前記制御保護回路の出力を入力し、該入力がリ
レー接点をオンとする第１レベル値であるときに
動作を開始し、リレー接点をオフとする第２レベ
ル値であるときに動作をリセツトするタイマ回路
と、前記制御保護回路の出力が第１レベル値であ
る状態が異常に継続する場合に、タイマ回路の出
力に一定時間後に現れる規定出力により、前記制
御保護回路の出力を反転し、第２レベル値とする
手段とを有することを特徴とする暖房器具の制御
保護回路。[Claims for Utility Model Registration] One wire has two conductors inside it, with a heat-sensitive insulator in between, and when a current is passed through one of the conductors, heat is generated, which is generated in the other conductor. In a control protection circuit that uses voltage as temperature information to operate a relay drive circuit to control on/off of a relay contact in the current path of the heat generating conductor, the output of the control protection circuit is input, and the input controls the relay contact in the current path of the heat generating conductor. A timer circuit that starts operation when the relay contact is at a first level value that turns it on and resets the operation when it is a second level value that turns off the relay contact, and an output of the control protection circuit that is at the first level value. A heating appliance characterized by having means for inverting the output of the control protection circuit to a second level value by a prescribed output that appears after a certain period of time in the output of the timer circuit when a certain condition continues abnormally. control protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13137388U JPH0252010U (en) | 1988-10-08 | 1988-10-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13137388U JPH0252010U (en) | 1988-10-08 | 1988-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0252010U true JPH0252010U (en) | 1990-04-13 |
Family
ID=31387378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13137388U Pending JPH0252010U (en) | 1988-10-08 | 1988-10-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0252010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014114985A (en) * | 2012-12-07 | 2014-06-26 | Panasonic Corp | Electric warmer |
-
1988
- 1988-10-08 JP JP13137388U patent/JPH0252010U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014114985A (en) * | 2012-12-07 | 2014-06-26 | Panasonic Corp | Electric warmer |
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