JPS5633712A - Temperature control device - Google Patents

Temperature control device

Info

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
Application number
JP10897579A
Other languages
Japanese (ja)
Inventor
Hirotoshi Takeuchi
Tatsu Hatano
Jun Iimura
Masakazu Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Panasonic Holdings Corp
Original Assignee
Mitsubishi Heavy Industries Ltd
Matsushita Electric Industrial Co Ltd
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 Mitsubishi Heavy Industries Ltd, Matsushita Electric Industrial Co Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP10897579A priority Critical patent/JPS5633712A/en
Publication of JPS5633712A publication Critical patent/JPS5633712A/en
Pending legal-status Critical Current

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  • 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
JP10897579A 1979-08-27 1979-08-27 Temperature control device Pending JPS5633712A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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