EP1379105A3 - Sensor for cooking vessel detection - Google Patents

Sensor for cooking vessel detection Download PDF

Info

Publication number
EP1379105A3
EP1379105A3 EP03022466A EP03022466A EP1379105A3 EP 1379105 A3 EP1379105 A3 EP 1379105A3 EP 03022466 A EP03022466 A EP 03022466A EP 03022466 A EP03022466 A EP 03022466A EP 1379105 A3 EP1379105 A3 EP 1379105A3
Authority
EP
European Patent Office
Prior art keywords
sensor
cooking vessel
vessel detection
radiant element
heater zones
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Withdrawn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
EP03022466A
Other languages
German (de)
French (fr)
Other versions
EP1379105A2 (en
Inventor
Martin Gross
Nils Platt
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7784387&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1379105(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP1379105A2 publication Critical patent/EP1379105A2/en
Publication of EP1379105A3 publication Critical patent/EP1379105A3/en
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

A sensor (30) has a single-wind loop that consists of a tube or thick wire and fits over the sensor near heater zones (18,19) and tightly under a glass ceramic plate. In the case of a two-circuit electric radiant element, the sensor loop is shaped in the heater zones with concise peripheral areas (37,38). An Independent claim is also included for a radiant element.
EP03022466A 1996-02-05 1997-01-18 Sensor for cooking vessel detection Withdrawn EP1379105A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19603845 1996-02-05
DE19603845A DE19603845B4 (en) 1996-02-05 1996-02-05 Electric radiant heater with an active sensor for cooking vessel detection
EP97100766A EP0788293B1 (en) 1996-02-05 1997-01-18 Electric radiant heater with active sensor for cooking vessel detection
EP99123892A EP0982973B2 (en) 1996-02-05 1997-01-18 Sensor for cooking vessel detection

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP99123892A Division-Into EP0982973B2 (en) 1996-02-05 1997-01-18 Sensor for cooking vessel detection
EP99123892A Division EP0982973B2 (en) 1996-02-05 1997-01-18 Sensor for cooking vessel detection

Publications (2)

Publication Number Publication Date
EP1379105A2 EP1379105A2 (en) 2004-01-07
EP1379105A3 true EP1379105A3 (en) 2004-11-03

Family

ID=7784387

Family Applications (3)

Application Number Title Priority Date Filing Date
EP97100766A Expired - Lifetime EP0788293B1 (en) 1996-02-05 1997-01-18 Electric radiant heater with active sensor for cooking vessel detection
EP03022466A Withdrawn EP1379105A3 (en) 1996-02-05 1997-01-18 Sensor for cooking vessel detection
EP99123892A Expired - Lifetime EP0982973B2 (en) 1996-02-05 1997-01-18 Sensor for cooking vessel detection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97100766A Expired - Lifetime EP0788293B1 (en) 1996-02-05 1997-01-18 Electric radiant heater with active sensor for cooking vessel detection

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99123892A Expired - Lifetime EP0982973B2 (en) 1996-02-05 1997-01-18 Sensor for cooking vessel detection

Country Status (6)

Country Link
US (1) US5893996A (en)
EP (3) EP0788293B1 (en)
JP (1) JPH09223572A (en)
AT (2) ATE204114T1 (en)
DE (3) DE19603845B4 (en)
ES (2) ES2162136T3 (en)

Families Citing this family (61)

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DE19907596A1 (en) * 1999-02-22 2000-08-24 Patrick Leidenberger Device which detects position of cooking vessel and guarantees that cooking vessel and heating element automatically agree has heating element slid under cooking vessel or cooking vessel
GB2349471B (en) * 1999-04-27 2003-08-06 Ceramaspeed Ltd Electric heater assembly
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.
DE19945297A1 (en) 1999-09-22 2001-03-29 Diehl Ako Stiftung Gmbh & Co Pot detection
US6184501B1 (en) * 1999-09-23 2001-02-06 Cherry Gmbh Object detection system
US6140617A (en) * 1999-10-22 2000-10-31 General Electric Company Cooktop control and monitoring system including detecting properties of a utensil through a solid-surface cooktop
US6737617B1 (en) 2000-01-24 2004-05-18 General Electric Company Methods and apparatus for a signal distortion based detection system
DE10023179C2 (en) * 2000-05-11 2002-07-18 Schott Glas Device and its use Control of cooktops with glass ceramic cooktops
DE10035745B4 (en) 2000-07-22 2004-02-05 E.G.O. Elektrogerätebau GmbH Temperature detection device for an electric radiant heater
IT1319292B1 (en) * 2000-11-08 2003-10-10 Whirlpool Co DEVICE TO DETECT THE PLACEMENT OF COOKING TOOLS ON A COOKING HOB WITH DISCRETE AND DISTRIBUTED HEATING ELEMENTS.
US6350971B1 (en) 2000-12-04 2002-02-26 General Electric Company Apparatus and method for detecting vessel movement on a cooktop surface
US6452136B1 (en) 2000-12-13 2002-09-17 General Electric Company Monitoring and control system and method for sensing of a vessel and other properties of a cooktop
US6417496B1 (en) 2000-12-22 2002-07-09 Emerson Electric Co. Modular heating unit for cooktops
US6403932B1 (en) 2001-01-09 2002-06-11 Emerson Electric Co. Controller for a heating unit in a cooktop and methods of operating same
DE10129175A1 (en) * 2001-06-12 2003-01-09 Ego Elektro Geraetebau Gmbh Electrical radiation heating body for cooker hobs has sensor for cooking pot detection in form of radiation heating element, preferably corrugated flat metal strip
GB0115831D0 (en) * 2001-06-28 2001-08-22 Ceramaspeed Ltd Radiant electric heater
GB0116884D0 (en) * 2001-07-11 2001-09-05 Ceramaspeed Ltd Temperature sensor assembly and radiant electric heater incorporating the same
DE10135270A1 (en) 2001-07-13 2003-01-23 Ego Elektro Geraetebau Gmbh Electric radiant heater with an active sensor for cooking vessel detection
US6492627B1 (en) 2001-07-26 2002-12-10 Emerson Electric Co. Heating unit and control system for cooktops having capability to detect presence of a pan and methods of operating same
DE10232710B4 (en) * 2001-08-28 2007-07-12 Cherry Gmbh Cooking area with cooking vessel detection system
DE10150949A1 (en) * 2001-10-10 2003-04-24 Hubert Eric Walter Identification system for pre-packaged food container module inserted in induction oven or refrigeration device coupled to control system for operation of latter
US6894255B2 (en) * 2002-03-22 2005-05-17 Matsushita Electric Industrial Co., Ltd. Induction heating apparatus
DE10231122A1 (en) * 2002-07-05 2004-01-22 E.G.O. Elektro-Gerätebau GmbH Method of measuring the temperature of a metal cooking vessel
GB2392499B (en) * 2002-08-24 2005-10-05 Ceramaspeed Ltd Electric heater
GB0301164D0 (en) * 2003-01-18 2003-02-19 Ceramaspeed Ltd Temperature-responsive device
DE10305788A1 (en) 2003-02-06 2004-09-02 E.G.O. Elektro-Gerätebau GmbH Inductive sensor arrangement, especially for detecting pots on cooker hobs, has a control circuit connected to the sensors via MOSFET switches with low drain-source resistance
GB0314929D0 (en) * 2003-06-26 2003-07-30 Ceramaspeed Ltd Electric heater incorporating a device for detecting a cooking utensil
ITMI20031602A1 (en) * 2003-08-04 2005-02-05 Whirlpool Co COOKING PLAN WITH RANDOM PLACING WITH USER INTERFACE
DE10337543A1 (en) * 2003-08-05 2005-02-24 E.G.O. Elektro-Gerätebau GmbH Temperature measuring device for heater of hob has longitudinal sensor made from ferromagnetic material running along active region of heating device connected to evaluation unit
DE102004003119A1 (en) * 2004-01-21 2005-08-11 BSH Bosch und Siemens Hausgeräte GmbH Device for heating food by means of inductive coupling and device for transmitting energy
DE102004011749A1 (en) * 2004-03-02 2005-09-15 E.G.O. Elektro-Gerätebau GmbH A method for controlling heating zones of a hob unit has inductive heating elements and sensing elements to select a zone for use and a single heating level control switch for all zones
DE102004059822B4 (en) * 2004-12-03 2011-02-24 E.G.O. Elektro-Gerätebau GmbH Method for operating an induction hob
DE102005041028A1 (en) * 2005-08-23 2007-03-01 E.G.O. Elektro-Gerätebau GmbH Electronically controlled hob with several cooking zones and method for operating such a hob
DE102005047186A1 (en) * 2005-09-26 2007-03-29 E.G.O. Elektro-Gerätebau GmbH Switching arrangement for evaluating sensor state, has microcontroller arranged so that it forms oscillating circuit in capacitor and sensor to detect cooking vessel and another circuit in inductor and sensor to detect vessel contact
FR2895639B1 (en) * 2005-12-27 2008-02-29 Brandt Ind Sas VARIABLE SIZE INDUCTION COOKING FIREPLACE
KR101261645B1 (en) * 2006-12-14 2013-05-08 엘지전자 주식회사 Cooker and control method of the same of
EP1937032B1 (en) * 2006-12-20 2020-11-04 Electrolux Home Products Corporation N.V. Household appliance
KR20080068775A (en) * 2007-01-20 2008-07-24 삼성전자주식회사 Pan sensor and radiant heater having the same and heating cooker having the radiant heater and control method thereof
ES2321467B1 (en) * 2007-08-24 2010-03-04 Bsh Electrodomesticos España, S.A. COOKING DEVICE PROVISION.
CN101971698B (en) * 2008-03-10 2013-04-17 松下电器产业株式会社 Induction heating cooking device
US20100147832A1 (en) * 2008-12-16 2010-06-17 Barker Iii Charles R Induction cookware identifying
DE102009034203A1 (en) 2009-07-16 2011-01-20 E.G.O. Elektro-Gerätebau GmbH Method for operating a hob
ES2382431B1 (en) * 2009-07-29 2013-05-08 BSH Electrodomésticos España S.A. COOKING DEVICE WITH AT LEAST TWO HEATING AREAS
WO2012075092A2 (en) 2010-11-30 2012-06-07 Bose Corporation Induction cooking
DE102012201236A1 (en) 2011-02-25 2012-08-30 BSH Bosch und Siemens Hausgeräte GmbH Calibrating device for calibrating home appliance e.g. matrix induction hob, has control unit calibrating reference value of sensing unit designed as matrix sensor and controlling inductance characteristics of inductor in induction hob
US20130175254A1 (en) * 2012-01-10 2013-07-11 General Electric Company Cook top appliance having spill and boil-over detection and response
DE102012200342B4 (en) 2012-01-11 2017-03-23 E.G.O. Elektro-Gerätebau GmbH Method for controlling a plurality of gas burners of a gas hob
DE102012215744A1 (en) 2012-09-05 2014-03-06 E.G.O. Elektro-Gerätebau GmbH Operating procedure for a hob and hob
DE102013201070A1 (en) 2013-01-23 2014-02-06 E.G.O. Elektro-Gerätebau GmbH Method of controlling cooking appliance e.g. microwave oven, has controller to enable function unit in off state according to maximum time of cooking appliance for preparation of cooking material
DE102013218339A1 (en) 2013-09-12 2015-03-12 E.G.O. Elektro-Gerätebau GmbH Method for pot detection and gas hob
US9470423B2 (en) 2013-12-02 2016-10-18 Bose Corporation Cooktop power control system
JP6219229B2 (en) * 2014-05-19 2017-10-25 東京エレクトロン株式会社 Heater feeding mechanism
EP3001771B1 (en) 2014-09-29 2017-04-05 E.G.O. ELEKTRO-GERÄTEBAU GmbH Method for detecting the identity of a pot on a cooking point of a hob and system of a hob with a pot
DE102015203316A1 (en) 2015-02-24 2016-08-25 E.G.O. Elektro-Gerätebau GmbH Hob and method for positioning a heater on a hob
US10228144B2 (en) 2015-05-28 2019-03-12 Whirlpool Corporation Method of pan detection and cooktop adjustment for multiple heating sections
EP3324163A1 (en) * 2016-11-22 2018-05-23 Whirlpool Corporation Temperature probe for domestic oven and domestic oven using such probe
US10323556B2 (en) * 2016-12-16 2019-06-18 Gates Corporation Electric immersion heater for diesel exhaust fluid reservoir
CN111869318B (en) * 2018-03-23 2022-08-26 日本碍子株式会社 Multi-zone heater
GB2593468B (en) * 2020-03-23 2022-04-13 Equip Line Ltd An apparatus for heating a pot of food or beverage
US11598530B2 (en) 2020-07-10 2023-03-07 Haier Us Appliance Solutions, Inc. Cooktop appliance and heating element having a thermostat

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0442275A2 (en) * 1990-02-10 1991-08-21 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Device for detecting a vessel put in the heating zone of a cooking or heating apparatus
EP0469189A2 (en) * 1990-08-02 1992-02-05 Oskar Locher Ag Method and apparatus for controlling heating elements of a cooking oven
EP0490289A1 (en) * 1990-12-11 1992-06-17 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Electric heater particularly radiant heater
DE4235085A1 (en) * 1991-10-20 1993-04-22 Klaschka Ind Elektronik Coil for inductive sensor or emitter esp. for detecting vessel on cooker hob - composed of high temp. resistant coil e.g. mica and individual high temp. resistant alloy wires e.g. nickel@-chromium@-silicon@ alloy
DE4224934A1 (en) * 1992-07-28 1994-02-03 Bosch Siemens Hausgeraete Sensor device for cooking plate pan detection system - uses at least two sensor elements at outer edge of heating element used to detect size of pan to select correct heating zone

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US3796850A (en) * 1973-05-31 1974-03-12 Westinghouse Electric Corp Pan detector for induction heating cooking unit
US4013859A (en) * 1975-06-04 1977-03-22 Environment/One Corporation Induction cooking unit having cooking load sensing device and essentially zero stand-by power loss
US4319109A (en) * 1979-12-28 1982-03-09 General Electric Company Centered utensil sensor for induction surface units
DE3007037A1 (en) * 1980-02-26 1981-09-03 Ego Elektro Blanc & Fischer GLASS CERAMIC COOKER
DE8133341U1 (en) * 1980-11-17 1982-03-25 Micropore International Ltd., Droitwich, Worcestershire ELECTRIC RADIATION HEATER FOR COOKERS WITH GLASS CERAMIC COVER PANELS
US4334135A (en) * 1980-12-22 1982-06-08 General Electric Company Utensil location sensor for induction surface units
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.
DE4142872A1 (en) * 1991-12-23 1993-06-24 Thomson Brandt Gmbh METHOD AND DEVICE FOR INDUCTIVE HEATING OF CONTAINERS OF DIFFERENT SIZES
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0442275A2 (en) * 1990-02-10 1991-08-21 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Device for detecting a vessel put in the heating zone of a cooking or heating apparatus
EP0469189A2 (en) * 1990-08-02 1992-02-05 Oskar Locher Ag Method and apparatus for controlling heating elements of a cooking oven
EP0490289A1 (en) * 1990-12-11 1992-06-17 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Electric heater particularly radiant heater
DE4235085A1 (en) * 1991-10-20 1993-04-22 Klaschka Ind Elektronik Coil for inductive sensor or emitter esp. for detecting vessel on cooker hob - composed of high temp. resistant coil e.g. mica and individual high temp. resistant alloy wires e.g. nickel@-chromium@-silicon@ alloy
DE4224934A1 (en) * 1992-07-28 1994-02-03 Bosch Siemens Hausgeraete Sensor device for cooking plate pan detection system - uses at least two sensor elements at outer edge of heating element used to detect size of pan to select correct heating zone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WHITAKKER J C: "THE ELECTRONICS HANDBOOK", ELECTRONICS HANDBOOK, XX, XX, 1996, pages 1343 - 1344, XP002968664 *

Also Published As

Publication number Publication date
EP0788293A3 (en) 1998-01-07
DE19603845B4 (en) 2010-07-22
EP0982973B1 (en) 2004-03-31
DE19603845A1 (en) 1997-08-07
EP1379105A2 (en) 2004-01-07
DE59711476D1 (en) 2004-05-06
US5893996A (en) 1999-04-13
DE59704217D1 (en) 2001-09-13
ES2218941T5 (en) 2009-06-01
ES2218941T3 (en) 2004-11-16
EP0982973A2 (en) 2000-03-01
EP0982973B2 (en) 2009-02-11
JPH09223572A (en) 1997-08-26
EP0788293B1 (en) 2001-08-08
ATE204114T1 (en) 2001-08-15
EP0982973A3 (en) 2000-05-03
ATE263475T1 (en) 2004-04-15
ES2162136T3 (en) 2001-12-16
EP0788293A2 (en) 1997-08-06

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