FR2430679A1 - Safety circuit for induction heated hotplates - has bimetallic switches protecting circuitry and utensil bearing surfaces - Google Patents

Safety circuit for induction heated hotplates - has bimetallic switches protecting circuitry and utensil bearing surfaces

Info

Publication number
FR2430679A1
FR2430679A1 FR7819936A FR7819936A FR2430679A1 FR 2430679 A1 FR2430679 A1 FR 2430679A1 FR 7819936 A FR7819936 A FR 7819936A FR 7819936 A FR7819936 A FR 7819936A FR 2430679 A1 FR2430679 A1 FR 2430679A1
Authority
FR
France
Prior art keywords
safety circuit
oscillator
induction heated
bearing surfaces
bimetallic switches
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
FR7819936A
Other languages
French (fr)
Other versions
FR2430679B3 (en
Inventor
Daniel Grandjean
Charles Teyssier
Jean-Pierre Gentric
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.)
Orega Electronique et Mecanique
Original Assignee
Orega Electronique et Mecanique
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 Orega Electronique et Mecanique filed Critical Orega Electronique et Mecanique
Priority to FR7819936A priority Critical patent/FR2430679A1/en
Publication of FR2430679A1 publication Critical patent/FR2430679A1/en
Application granted granted Critical
Publication of FR2430679B3 publication Critical patent/FR2430679B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/047—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a temperature responsive switch
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/05—Heating plates with pan detection means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)

Abstract

The induction heated hot plate safety circuit (100) is used esp., for limiting the max. obtained temp. for the cooking utensils and for the semiconductor switching components. The oscillator thyristors and diodes are mounted on a heat sink, and a radiator. The bridge rectifier supplying the oscillator land induction heating coil are mounted to one side of the insulating plate supporting the cooking utensil. The supply to the oscillator is made via a triac or similar switch whose gate bias is controlled by two bimetallic switches, one in close contact with the radiator and one with the utensils plate.
FR7819936A 1978-07-04 1978-07-04 Safety circuit for induction heated hotplates - has bimetallic switches protecting circuitry and utensil bearing surfaces Granted FR2430679A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7819936A FR2430679A1 (en) 1978-07-04 1978-07-04 Safety circuit for induction heated hotplates - has bimetallic switches protecting circuitry and utensil bearing surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7819936A FR2430679A1 (en) 1978-07-04 1978-07-04 Safety circuit for induction heated hotplates - has bimetallic switches protecting circuitry and utensil bearing surfaces

Publications (2)

Publication Number Publication Date
FR2430679A1 true FR2430679A1 (en) 1980-02-01
FR2430679B3 FR2430679B3 (en) 1981-01-30

Family

ID=9210317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819936A Granted FR2430679A1 (en) 1978-07-04 1978-07-04 Safety circuit for induction heated hotplates - has bimetallic switches protecting circuitry and utensil bearing surfaces

Country Status (1)

Country Link
FR (1) FR2430679A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495876A1 (en) * 1980-12-05 1982-06-11 Scholtes Ets Eugen ELECTRONIC INDUCTION HEATING DEVICE
EP0102796A2 (en) * 1982-08-19 1984-03-14 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus utilizing output energy for powering switching operation
EP0216361A2 (en) * 1985-09-27 1987-04-01 Honeywell Inc. Temperature control system
EP0628975A2 (en) * 1993-06-01 1994-12-14 Koninklijke Philips Electronics N.V. Spark suppressor circuit for protection of an electrical switch, and electrical thermal appliance comprising such a circuit
US5576919A (en) * 1993-06-01 1996-11-19 U.S. Philips Corporation Spark suppressor circuit for protection of an electrical switch, and electrical thermal appliance comprising such a circuit

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495876A1 (en) * 1980-12-05 1982-06-11 Scholtes Ets Eugen ELECTRONIC INDUCTION HEATING DEVICE
EP0054445A1 (en) * 1980-12-05 1982-06-23 Etablissements Eugene Scholtes Electronic induction heating arrangememt
EP0102796A2 (en) * 1982-08-19 1984-03-14 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus utilizing output energy for powering switching operation
EP0102796A3 (en) * 1982-08-19 1985-03-13 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus utilizing output energy for powering switching operation
US4595814A (en) * 1982-08-19 1986-06-17 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus utilizing output energy for powering switching operation
EP0216361A2 (en) * 1985-09-27 1987-04-01 Honeywell Inc. Temperature control system
EP0216361A3 (en) * 1985-09-27 1988-11-09 Honeywell Inc. Temperature control system
EP0628975A2 (en) * 1993-06-01 1994-12-14 Koninklijke Philips Electronics N.V. Spark suppressor circuit for protection of an electrical switch, and electrical thermal appliance comprising such a circuit
EP0628975A3 (en) * 1993-06-01 1995-08-23 Philips Electronics Nv Spark suppressor circuit for protection of an electrical switch, and electrical thermal appliance comprising such a circuit.
US5576919A (en) * 1993-06-01 1996-11-19 U.S. Philips Corporation Spark suppressor circuit for protection of an electrical switch, and electrical thermal appliance comprising such a circuit

Also Published As

Publication number Publication date
FR2430679B3 (en) 1981-01-30

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