JPS5479843A - Safety device for electric heater - Google Patents

Safety device for electric heater

Info

Publication number
JPS5479843A
JPS5479843A JP14744277A JP14744277A JPS5479843A JP S5479843 A JPS5479843 A JP S5479843A JP 14744277 A JP14744277 A JP 14744277A JP 14744277 A JP14744277 A JP 14744277A JP S5479843 A JPS5479843 A JP S5479843A
Authority
JP
Japan
Prior art keywords
heater
resistance
container
electric heater
safety device
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.)
Granted
Application number
JP14744277A
Other languages
Japanese (ja)
Other versions
JPS6032957B2 (en
Inventor
Jun Iguchi
Masaki Nakamura
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.)
Panasonic Holdings Corp
Original Assignee
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14744277A priority Critical patent/JPS6032957B2/en
Publication of JPS5479843A publication Critical patent/JPS5479843A/en
Publication of JPS6032957B2 publication Critical patent/JPS6032957B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Resistance Heating (AREA)

Abstract

PURPOSE: To adapt a heater for safety by measuring the insulation resistance between a heater and a container to intercept the supply of electricity to the heater when the insulation is deteriorated.
CONSTITUTION: When the insulation resistance between a heater 26 and a container 38 is small, the output of an oscillator 31 is given to the both ends of a resistance 36 as it is through a heater 26 and a container 38. Since the voltage on the both ends of this resistance 36 is greater than the reference voltage to be divided by resistances 32 and 33 and the output of a comparator 34 is reduced into a low level, a relay coil 39 is not driven and switches 24 and 28 are kept opened without giving electricity to the heater 26.
COPYRIGHT: (C)1979,JPO&Japio
JP14744277A 1977-12-07 1977-12-07 Electric heater safety device Expired JPS6032957B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14744277A JPS6032957B2 (en) 1977-12-07 1977-12-07 Electric heater safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14744277A JPS6032957B2 (en) 1977-12-07 1977-12-07 Electric heater safety device

Publications (2)

Publication Number Publication Date
JPS5479843A true JPS5479843A (en) 1979-06-26
JPS6032957B2 JPS6032957B2 (en) 1985-07-31

Family

ID=15430423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14744277A Expired JPS6032957B2 (en) 1977-12-07 1977-12-07 Electric heater safety device

Country Status (1)

Country Link
JP (1) JPS6032957B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58185156U (en) * 1982-06-01 1983-12-09 象印マホービン株式会社 electric water heater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03122861U (en) * 1990-03-26 1991-12-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58185156U (en) * 1982-06-01 1983-12-09 象印マホービン株式会社 electric water heater
JPS638375Y2 (en) * 1982-06-01 1988-03-14

Also Published As

Publication number Publication date
JPS6032957B2 (en) 1985-07-31

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