JPS5633712A - Temperature control device - Google Patents
Temperature control deviceInfo
- Publication number
- JPS5633712A JPS5633712A JP10897579A JP10897579A JPS5633712A JP S5633712 A JPS5633712 A JP S5633712A JP 10897579 A JP10897579 A JP 10897579A JP 10897579 A JP10897579 A JP 10897579A JP S5633712 A JPS5633712 A JP S5633712A
- Authority
- JP
- Japan
- Prior art keywords
- thermistor
- disconnection
- conduction
- break
- flows
- 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
Landscapes
- Control Of Temperature (AREA)
Abstract
PURPOSE: To prevent assuredly the accident such as a fire or the like, by securing a safe control of the control circuit in case a disconnection occurs to the thermistor or its connecting circuit.
CONSTITUTION: With no disconnection of the thermistor 2, the electromagnetic clutch 24 works when the resistance value of the thermistor 2 becomes higher than a fixed level and then stops when the resistance value becomes lower than the fixed level. And with disconnection of the thermistor 2, no base current of the transistor (TR)28 flows to break the conduction of the TR28. Thus the base current of the TR29 flows through the resistance 27 to make the TR29 conduct. As a result, the base potential of the TR19 becomes lower than the emitter potential to break the conduction of the TR19. Accordingly, the conduction of the TR20 and 21 are interrupted to open the relay contact 23, and then the clutch 24 discontinues its working. In such way, the danger can be prevented even in case the detection of temperature becomes impossible due to the disconnection of the termistor and with installation of the thermistor disconnection detecting circuit.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10897579A JPS5633712A (en) | 1979-08-27 | 1979-08-27 | Temperature control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10897579A JPS5633712A (en) | 1979-08-27 | 1979-08-27 | Temperature control device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5633712A true JPS5633712A (en) | 1981-04-04 |
Family
ID=14498389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10897579A Pending JPS5633712A (en) | 1979-08-27 | 1979-08-27 | Temperature control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5633712A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6582119B2 (en) * | 2000-03-13 | 2003-06-24 | Toyoda Koki Kabushiki Kaisha | Wire breaking detection method for temperature sensor and temperature sensing apparatus for using the method |
US7390049B2 (en) | 2004-01-30 | 2008-06-24 | Hirotec Corporation | Vehicle door |
-
1979
- 1979-08-27 JP JP10897579A patent/JPS5633712A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6582119B2 (en) * | 2000-03-13 | 2003-06-24 | Toyoda Koki Kabushiki Kaisha | Wire breaking detection method for temperature sensor and temperature sensing apparatus for using the method |
US7390049B2 (en) | 2004-01-30 | 2008-06-24 | Hirotec Corporation | Vehicle door |
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