EP0786923A3 - Switching system for the overtemperature protection of a glass ceramic plate of a cooktop - Google Patents

Switching system for the overtemperature protection of a glass ceramic plate of a cooktop Download PDF

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Publication number
EP0786923A3
EP0786923A3 EP96103542A EP96103542A EP0786923A3 EP 0786923 A3 EP0786923 A3 EP 0786923A3 EP 96103542 A EP96103542 A EP 96103542A EP 96103542 A EP96103542 A EP 96103542A EP 0786923 A3 EP0786923 A3 EP 0786923A3
Authority
EP
European Patent Office
Prior art keywords
glass ceramic
ceramic plate
control device
temperature
cooktop
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.)
Withdrawn
Application number
EP96103542A
Other languages
German (de)
French (fr)
Other versions
EP0786923A2 (en
Inventor
Jürgen Dipl.-Ing. Luther
Jürgen Dipl.-Ing. Leikam
Bernd Dipl.-Ing. Gehrke
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG Hausgeraete GmbH
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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0786923A2 publication Critical patent/EP0786923A2/en
Publication of EP0786923A3 publication Critical patent/EP0786923A3/en
Withdrawn legal-status Critical Current

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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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • 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
    • H05B2213/04—Heating plates with overheat protection means
    • 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
    • H05B2213/07—Heating plates with temperature control means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Control Of Temperature (AREA)
  • Protection Of Static Devices (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

Ein Schaltungssystem für den Schutz der durch einen elektrischen Heizkörper (1) aufzuheizenden Glaskeramikplatte eines Kochfeldes gegen Übertemperaturen enthält mindestens einen elektronischen Sensor (5,6) und eine Steuereinrichtung (3). Der Sensor (5,6) mißt an der Glaskeramikplatte deren Temperatur und gibt sie an die Steuereinrichtung (3) ab. Die Steuereinrichtung (3) verarbeitet das Sensorsignal und vergleicht es mit einer vorbestimmten höchstzulässigen Glaskeramiktemperatur (Tv) derart, daß die Steuereinrichtung (3) den Laststromkreis (2) des Heizkörpers (1) elektronisch ansteuert und die dem Heizkörper (1) zugeführte Leistung reduziert bzw. unterbricht, wenn die gemessene Temperatur die vorbestimmte Temperatur (Tv) erreicht bzw. überschreitet.

Figure 00000001
A circuit system for protecting the glass ceramic plate of a hob to be heated by an electric heater (1) against excess temperatures contains at least one electronic sensor (5, 6) and a control device (3). The sensor (5, 6) measures the temperature of the glass ceramic plate and outputs it to the control device (3). The control device (3) processes the sensor signal and compares it with a predetermined maximum permissible glass ceramic temperature (T v ) in such a way that the control device (3) electronically controls the load circuit (2) of the radiator (1) and reduces the power supplied to the radiator (1) or interrupts when the measured temperature reaches or exceeds the predetermined temperature (T v ).
Figure 00000001
EP96103542A 1996-01-26 1996-03-07 Switching system for the overtemperature protection of a glass ceramic plate of a cooktop Withdrawn EP0786923A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602649 1996-01-26
DE19602649 1996-01-26

Publications (2)

Publication Number Publication Date
EP0786923A2 EP0786923A2 (en) 1997-07-30
EP0786923A3 true EP0786923A3 (en) 1998-01-07

Family

ID=7783670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103542A Withdrawn EP0786923A3 (en) 1996-01-26 1996-03-07 Switching system for the overtemperature protection of a glass ceramic plate of a cooktop

Country Status (1)

Country Link
EP (1) EP0786923A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2151805B1 (en) * 1998-03-16 2001-08-16 Santis Danilo De ELECTRONIC POWER CONTROL SYSTEM FOR KITCHEN VITROCERAMIC PLATES WITH OPTICAL SENSOR OF PRESENCE OF POT.
DE19828052A1 (en) 1998-06-24 1999-12-30 Cherry Gmbh Device for limiting the temperature of a glass ceramic hob
DE19906115C1 (en) * 1999-02-13 2000-08-31 Schott Glas Method for recognizing the empty cooking of dishes in hobs with a glass ceramic hob and associated device
DE102005056708A1 (en) * 2005-11-28 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Circuit arrangement for e.g. electric stove, has fuse switch operated based on temperature of cooking device, so that power supply at heating units is interruptible via coupler switch during exceeding of marginal temperature of device
DE102006037712A1 (en) * 2006-08-08 2008-02-14 E.G.O. Elektro-Gerätebau GmbH Switching device for a heating device
BRPI0605541A (en) * 2006-12-01 2008-07-15 Whirlpool Sa device and method for controlling a heating element of a glass ceramic cooking plate

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060329A (en) * 1979-10-11 1981-04-29 Thorn Domestic Appliances Ltd Cooking hobs
GB2138659A (en) * 1980-01-14 1984-10-24 Johnson Matthey Plc Glass Ceramic Hob including Temperature Sensor
EP0138314A1 (en) * 1983-08-31 1985-04-24 THORN EMI Appliances Limited Heating apparatus
US4740664A (en) * 1987-01-05 1988-04-26 General Electric Company Temperature limiting arrangement for a glass-ceramic cooktop appliance
DE3736005A1 (en) * 1987-10-23 1989-05-03 Bosch Siemens Hausgeraete Control unit for electronically controlling the hob temperature with a temperature sensor
EP0471171A2 (en) * 1990-07-18 1992-02-19 Schott Glaswerke Device for regulating and limiting the power of a heating plate of ceramic or similar material
EP0481162A2 (en) * 1990-10-15 1992-04-22 Lancet S.A. Domestic cooking apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060329A (en) * 1979-10-11 1981-04-29 Thorn Domestic Appliances Ltd Cooking hobs
GB2138659A (en) * 1980-01-14 1984-10-24 Johnson Matthey Plc Glass Ceramic Hob including Temperature Sensor
EP0138314A1 (en) * 1983-08-31 1985-04-24 THORN EMI Appliances Limited Heating apparatus
US4740664A (en) * 1987-01-05 1988-04-26 General Electric Company Temperature limiting arrangement for a glass-ceramic cooktop appliance
DE3736005A1 (en) * 1987-10-23 1989-05-03 Bosch Siemens Hausgeraete Control unit for electronically controlling the hob temperature with a temperature sensor
EP0471171A2 (en) * 1990-07-18 1992-02-19 Schott Glaswerke Device for regulating and limiting the power of a heating plate of ceramic or similar material
EP0481162A2 (en) * 1990-10-15 1992-04-22 Lancet S.A. Domestic cooking apparatus

Also Published As

Publication number Publication date
EP0786923A2 (en) 1997-07-30

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