CA2276304A1 - Cooktop with a non-metallic hotplate - Google Patents

Cooktop with a non-metallic hotplate Download PDF

Info

Publication number
CA2276304A1
CA2276304A1 CA002276304A CA2276304A CA2276304A1 CA 2276304 A1 CA2276304 A1 CA 2276304A1 CA 002276304 A CA002276304 A CA 002276304A CA 2276304 A CA2276304 A CA 2276304A CA 2276304 A1 CA2276304 A1 CA 2276304A1
Authority
CA
Canada
Prior art keywords
heating
measurement sensor
cooktop
metallic
alternating field
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
CA002276304A
Other languages
French (fr)
Other versions
CA2276304C (en
Inventor
Andreas Borrmann
Dieter Munkes
Kurt Schaupert
Harry Engelmann
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.)
Schott AG
Original Assignee
Schott Glas
Andreas Borrmann
Dieter Munkes
Kurt Schaupert
Harry Engelmann
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 Schott Glas, Andreas Borrmann, Dieter Munkes, Kurt Schaupert, Harry Engelmann filed Critical Schott Glas
Publication of CA2276304A1 publication Critical patent/CA2276304A1/en
Application granted granted Critical
Publication of CA2276304C publication Critical patent/CA2276304C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/106—Tops, e.g. hot plates; Rings electrically heated electric circuits
    • 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
    • H05B2213/05—Heating plates with pan detection means

Abstract

A device for recognising the presence and/or size of metallic pots on a heating or cooking zone of a non-metallic hotplate or cooking plate, in particular of a vitroceramic cooktop, has a measurement sensor (3) arranged in the area of the heating or cooking zone and an evaluation unit (5) connected to the measurement sensor. The measurement sensor has a primary coil (8) for generating a magnetic alternating field and a secondary coil (9) arranged in such a way that it is crossed by the magnetic alternating field of the primary coil. The evaluation unit (5) monitors the voltage induced in the secondary coil (9) by the magnetic alternating field. When a pot is set on the heating or cooking zone, this causes the induction voltage to change, the intensity of the induction voltage being dependent on the size of the pot.
CA002276304A 1997-01-11 1998-01-07 Cooktop with a non-metallic hotplate Expired - Fee Related CA2276304C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19700753.8 1997-01-11
DE19700753A DE19700753C2 (en) 1997-01-11 1997-01-11 Hob with a non-metallic hotplate
PCT/EP1998/000194 WO1998031198A1 (en) 1997-01-11 1998-01-07 Cooktop with a non-metallic hotplate

Publications (2)

Publication Number Publication Date
CA2276304A1 true CA2276304A1 (en) 1998-07-16
CA2276304C CA2276304C (en) 2003-12-09

Family

ID=7817179

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002276304A Expired - Fee Related CA2276304C (en) 1997-01-11 1998-01-07 Cooktop with a non-metallic hotplate

Country Status (8)

Country Link
US (1) US6242721B1 (en)
EP (1) EP0951805B1 (en)
AT (1) ATE217471T1 (en)
CA (1) CA2276304C (en)
DE (2) DE19700753C2 (en)
DK (1) DK0951805T3 (en)
ES (1) ES2176953T3 (en)
WO (1) WO1998031198A1 (en)

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* Cited by examiner, † Cited by third party
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DE19930830A1 (en) * 1999-07-03 2001-01-18 Dold Gmbh Mes Und Regeltechnik Sensor device and method for detecting and recording the size of a pan bottom's area over a heating area uses a wire loop integrated into a heating area in a radiated heating unit.
US6184501B1 (en) * 1999-09-23 2001-02-06 Cherry Gmbh Object detection system
IT1313966B1 (en) * 1999-12-24 2002-09-26 Whirlpool Co POTS AND SIMILAR PRESENCE DETECTOR ON COOKING APPLIANCES
ES2164595B1 (en) * 2000-03-24 2003-04-01 Eika S Coop CIRCUIT FOR THE DETECTION OF CONTAINER IN A KITCHEN PLATE.
DE10023179C2 (en) * 2000-05-11 2002-07-18 Schott Glas Device and its use Control of cooktops with glass ceramic cooktops
DE10048254C1 (en) * 2000-09-29 2001-09-20 Schott Glas Pot detection system, for hotplates on ceramic hob, comprises individual conductors which run to plates from common connection and conductive layer insulated from individual conductors positioned over them in area between plates
DE10135270A1 (en) * 2001-07-13 2003-01-23 Ego Elektro Geraetebau Gmbh Electric radiant heater with an active sensor for cooking vessel detection
EP1289339A3 (en) * 2001-08-28 2005-09-28 Cherry GmbH Process and device to detect a spatial proximity of an electrical conductive item and use of this device as system to detect cooking vessels
DE10232710B4 (en) * 2001-08-28 2007-07-12 Cherry Gmbh Cooking area with cooking vessel detection system
US6815648B2 (en) * 2002-12-31 2004-11-09 General Electric Company Contact sensor arrangements for glass-ceramic cooktop appliances
EP1847019A1 (en) * 2005-02-08 2007-10-24 Firma Pepperl + Fuchs GmbH Inductive proximity switch based on a transformer coupling factor principle
KR101261645B1 (en) * 2006-12-14 2013-05-08 엘지전자 주식회사 Cooker and control method of the same of
CN101430370B (en) * 2008-10-27 2011-06-08 西安西工大思强科技有限公司 Thermostatic control zero-drift fluxgraph
EP2194754A1 (en) * 2008-12-05 2010-06-09 Electrolux Home Products Corporation N.V. Sensor arrangement for cookware detection
ES2356441B1 (en) * 2008-12-19 2012-03-13 Bsh Electrodomésticos España, S.A. COOKING FIELD WITH AN INDUCTOR, AN INVESTOR AND A CONNECTION DEVICE.
ES2356780B1 (en) 2009-01-20 2012-03-13 Bsh Electrodomésticos España, S.A. COOKING FIELD WITH AT LEAST ONE HEATING AREA OF VARIOUS HEATING ELEMENTS.
DE102009007363A1 (en) 2009-02-04 2010-08-12 Saint-Gobain Deutsche Glas Gmbh Kitchen worktop with induction hob
DE102009020905A1 (en) 2009-05-12 2010-12-09 Diehl Ako Stiftung & Co. Kg Hob for use in cookware, has multiple heating elements, which are arranged in or below hot plate for cooking zone, such that each heating element is assigned detection unit for pan detection
US20130175254A1 (en) * 2012-01-10 2013-07-11 General Electric Company Cook top appliance having spill and boil-over detection and response
US10605464B2 (en) * 2012-10-15 2020-03-31 Whirlpool Corporation Induction cooktop
DE102013201386A1 (en) * 2013-01-29 2014-07-31 BSH Bosch und Siemens Hausgeräte GmbH Hob with a hob plate and a trace as area boundary for electronic components
EP2779787B1 (en) 2013-03-11 2015-06-17 Electrolux Appliances Aktiebolag Method of detecting cookware on an induction hob, induction hob and cooking appliance
DE102014214795A1 (en) * 2014-07-28 2016-01-28 E.G.O. Elektro-Gerätebau GmbH Method and device for detecting the position of a pot on an induction hob
US20160227609A1 (en) * 2015-01-30 2016-08-04 Schott Corporation Multi function glass or glass-ceramic cooktop system and method of cooking thereon
WO2017174630A1 (en) * 2016-04-06 2017-10-12 Arcelik Anonim Sirketi Induction heating cooktop comprising a dual coil heating zone
GB2593468B (en) * 2020-03-23 2022-04-13 Equip Line Ltd An apparatus for heating a pot of food or beverage

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AT238331B (en) * 1963-03-26 1965-02-10 Burger Eisenwerke Ag Cooking area with switching device operated by the cooking vessel
US3763424A (en) * 1971-07-15 1973-10-02 Sperry Rand Corp Metal detector for identifying and discriminating between objects of different size, shape, orientation and ferrous content and including an auto nulling circuit
ZA733467B (en) * 1972-06-01 1974-04-24 Gillette Co Hair drying and styling apparatus
DE2831858A1 (en) * 1978-07-20 1980-02-07 Licentia Gmbh Hotplate switched on by presence of cooking utensil - measures voltage across AC-supplied capacitors and operates heating-circuit switch
US4319109A (en) * 1979-12-28 1982-03-09 General Electric Company Centered utensil sensor for induction surface units
JPS56116142A (en) * 1980-02-18 1981-09-11 Toshiba Corp Detection system for electro magnetic page
US4334135A (en) * 1980-12-22 1982-06-08 General Electric Company Utensil location sensor for induction surface units
DE3327622A1 (en) 1983-07-30 1985-02-07 Blanc Gmbh & Co, 7519 Oberderdingen Electrical hotplate for a glass-ceramic cooking plate
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DE3533997A1 (en) 1985-09-24 1987-03-26 Licentia Gmbh Cooking top with a number of cooking points
DE3711589A1 (en) * 1987-04-06 1988-10-27 Kueppersbusch Cooking appliance
DE3733108C1 (en) * 1987-09-30 1989-02-23 Bosch Siemens Hausgeraete Circuit arrangement for a pot (saucepan) recognition system with a pot recognition sensor
DE3843460A1 (en) * 1988-12-23 1990-06-28 Klaschka Ind Elektronik COOKING AREA
IT1243760B (en) * 1989-11-17 1994-06-23 Eurodomestici Ind Riunite DEVICE SUITABLE TO DETECT THE PRESENCE IN A COOKING CONTAINER FOR FOOD PLACED ON A COOKING HOB, FOR EXAMPLE IN CERAMIC GLASS.
DE4004129A1 (en) * 1990-02-10 1991-08-14 Ego Elektro Blanc & Fischer DEVICE FOR RECOGNIZING A COOKING VESSEL SET UP IN A HEATING ZONE OF A COOKING OR HEATING APPLIANCE
DE4022846C2 (en) * 1990-07-18 1994-08-11 Schott Glaswerke Device for power control and limitation in a heating surface made of glass ceramic or a comparable material
DE59009967D1 (en) * 1990-08-02 1996-01-25 Oskar Loches Ag Method and device for controlling heating elements of a cooker
GB2249634A (en) * 1990-11-07 1992-05-13 Gec Ferranti Defence Syst Security system for a vehicle
IT1260456B (en) * 1992-01-28 1996-04-09 Whirlpool Italia METHOD AND DEVICE TO DETECT A POT ON A GLASS-CERAMIC HOB IN THE PRESENCE OF A BODY IN CORRESPONDENCE WITH A HEATING ELEMENT ASSOCIATED WITH THAT PLAN
DE4224934C2 (en) * 1992-07-28 2003-05-15 Bsh Bosch Siemens Hausgeraete Radiator with sensor technology for a pan detection system
IT1272028B (en) * 1993-03-15 1997-06-10 Whirlpool Italia DEVICE TO DETECT THE PRESENCE OF A FOOD CONTAINER, SUCH AS A POT, A BAKER OR SIMILAR, ON A GLASS-CERAMIC HOB.
DE19603845B4 (en) * 1996-02-05 2010-07-22 E.G.O. Elektro-Gerätebau GmbH Electric radiant heater with an active sensor for cooking vessel detection

Also Published As

Publication number Publication date
DE59804050D1 (en) 2002-06-13
WO1998031198A1 (en) 1998-07-16
US6242721B1 (en) 2001-06-05
ATE217471T1 (en) 2002-05-15
EP0951805B1 (en) 2002-05-08
DE19700753C2 (en) 2000-09-14
DK0951805T3 (en) 2002-07-29
EP0951805A1 (en) 1999-10-27
DE19700753A1 (en) 1998-07-16
ES2176953T3 (en) 2002-12-01
CA2276304C (en) 2003-12-09

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EEER Examination request
MKLA Lapsed