EP0831675A1 - System for exploiting the total vitroceramic cooking surface - Google Patents

System for exploiting the total vitroceramic cooking surface Download PDF

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Publication number
EP0831675A1
EP0831675A1 EP97908299A EP97908299A EP0831675A1 EP 0831675 A1 EP0831675 A1 EP 0831675A1 EP 97908299 A EP97908299 A EP 97908299A EP 97908299 A EP97908299 A EP 97908299A EP 0831675 A1 EP0831675 A1 EP 0831675A1
Authority
EP
European Patent Office
Prior art keywords
plate
waves
receptacle
resistances
base
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Withdrawn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
EP97908299A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ventura Vale Lato
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0831675A1 publication Critical patent/EP0831675A1/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Withdrawn legal-status Critical Current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
    • 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
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate
    • 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

Definitions

  • the system to make good use or availability of the whole surface of vitroceramic plates for cookers, as proposed by the invention, constitutes per se an evident novelty in its application field, since a total good use of the plate surface is obtained, as well as an energetic saving when turning it on or when acting only and exclusively on the plate area having a circular surface corresponding to the base of a receptacle placed on it, and only and exclusively when said receptacle is placed on the vitroceramic plate, ceasing heating when the own receptable is not placed on said area.
  • This invention will find application in the industry destined to the manufacture of vitroceramic plates or similar.
  • vitroceramic plates usually formed starting from four heat emitting sources having different sizes are known.
  • the turning on of the vitroceramics of the last generation is made by induction, when a receptacle is placed on the vitroceramic plate surface, with the special feature that said receptacle must contain iron in its composition, that is to said, Fe, to be detected by magnets situated under the plate, and the heating area being also delimited.
  • the system to make good use of the whole surface of vitroceramic plates for cookers of the invention is constituted starting from a plate of vitroceramic material, under which a number of adequate electric resistances are placed, which are distributed among a plurality of sites, so that the whole plate surface can heat a receptacle placed on any spot of same.
  • Each resistance operates through wave detection, which can be electromagnetic, radiofrequency or audio-frequency waves, or light waves whichever their spectrum may be; por example, infrared, ultraviolet, visible light or laser.
  • the waves are detected to be reflected upon rebounding against the lower wall of the base of the receptacle to be placed on the vitroceramic plate.
  • the wave emission must be performed from several sites separated in order to avoid shadows on the plate; for example, those produced by the receptacle handles or grips.
  • the vitroceramic plate can be divided, for example, into four portions or connection and control zones of temperature to independently use, only and exclusively, a part of the plate, if it is not necessary to utilize more surfaces, or else to use, in each zone, a different heat power.
  • a solution is that the utilized wave emitters do not act simultaneously, but in a stepped way, or in groups or rows, with an appropiate circuit such as, for example, a digital counter or a microprocessor- or microcontroller-controlled counter.
  • the invention allows the vitroceramic plates, by means of an adequate connection, to operate in a similar manner as those existing at present in the - market, manually operating a determined zone of the plate, which normally has a circular shape, composed of several resistance..
  • An additional safety system would be to place a timing device between the moment of detecting the waves or the receiver, till the turning on of the resistance on which it acts.
  • the invention has the advantage of being able to use receptacles having large base dimensions, heating it uniformly at all - points of same, and any other location of the vitroceramic plate being used, at the same time, if not occupied, if necessary.
  • An additional advantage is configured by using this vitroceramic system by sightless persons, as it is only necessary to place the receptacle on any location of the plate and to act on a main control, so connecting the invention with a high degree of safety and - comfort, this high degree being increased by the possibility of placing a timing device between the moment of the detection by the receiver, till the turning on of the resistance on which it acts.
  • the invention uses multiemitters (3) and multireceivers (4) of infrared (8), and each emitter (3) and receiver (4) assembly is only related to a resistance (2), having a circular configuration, located under the vitroceramic plate (1) for cookers.
  • the vitroceramic plate (1) is divided into four areas which are equal with regard to surface and number of resistances or heat spots. Each of these areas can be connected, independently, by a switch or a potentiometer, and, also, the four areas can be connected, in turn, by a fifth main control.
  • the emitters (3) and the receivers (4) are divided by means of insulating walls (7), suitably distributed, which delimit the direction of the waves (8) emitted, and the reception of them by the receiver (5).
  • the emitters (3) send infrared light (8) upwards, passing through the vitroceramic plate (1), and expanding if no obstable is encountered and not receiving the waves the receiver (4) corresponding to that emitter (3), this being the reason for which the resistance (2), with which it forms an assembly, cannot be connected.
  • the infrared light (8) bounces on this base (6) downwards, being received by the receiver (4), which sends a command of turning on this resistance (2) under the base of the receptacle (6).
  • timing device the function of which is to delay the fulfilment of the above mentioned command, if the receiver has giving it to its resistance, until certain time has elapsed, for example, 7 seconds, as a safety measure.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Ovens (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)
  • Induction Heating Cooking Devices (AREA)
EP97908299A 1996-03-20 1997-03-20 System for exploiting the total vitroceramic cooking surface Withdrawn EP0831675A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES9600676 1996-03-20
ES9600676A ES2115525B1 (es) 1996-03-20 1996-03-20 Sistema de aprovechamiento de la superficie total de vitroceramica para cocina.
PCT/ES1997/000073 WO1997035455A1 (es) 1996-03-20 1997-03-20 Sistema de aprovechamiento de la superficie total de vitroceramica para cocina

Publications (1)

Publication Number Publication Date
EP0831675A1 true EP0831675A1 (en) 1998-03-25

Family

ID=8294252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97908299A Withdrawn EP0831675A1 (en) 1996-03-20 1997-03-20 System for exploiting the total vitroceramic cooking surface

Country Status (3)

Country Link
EP (1) EP0831675A1 (es)
ES (1) ES2115525B1 (es)
WO (1) WO1997035455A1 (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1206164A2 (en) * 2000-11-08 2002-05-15 Whirlpool Corporation Device for determining the location of cooking utensils on a cooking hob comprising discrete distributed heating elements
EP1253382A1 (de) * 2001-04-25 2002-10-30 Rational AG Garverfahren und Gargerät mit automatischer Garguterkennung
EP2852248A1 (de) * 2013-09-20 2015-03-25 E.G.O. Elektro-Gerätebau GmbH Vorrichtung und Verfahren zur Topferkennung
WO2018178785A1 (de) * 2017-03-28 2018-10-04 BSH Hausgeräte GmbH Kochfeldvorrichtung
ES2689374R1 (es) * 2017-03-28 2018-11-16 BSH Electrodomésticos España S.A. Dispositivo de campo de cocción

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2284322B1 (es) * 2005-04-25 2008-09-01 Ildefonso Orozco Espinosa Vitroceramica multizonal por induccion, con activacion automatica y ajustada de la zona operativa.
ES2321467B1 (es) * 2007-08-24 2010-03-04 Bsh Electrodomesticos España, S.A. Disposicion de dispositivo de coccion.
ES2606635T5 (es) * 2012-09-13 2024-02-29 Bsh Hausgeraete Gmbh Dispositivo de campos de cocción
EP2709423B1 (de) * 2012-09-13 2017-05-10 BSH Hausgeräte GmbH Kochfeldvorrichtung
ES2683880B1 (es) * 2017-03-28 2019-07-12 Bsh Electrodomesticos Espana Sa dispositivo de campo de cocción

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953711A (en) * 1973-11-06 1976-04-27 E.G.O. Elektro-Geraete Blanc Und Fischer Cooking units
DE3327622A1 (de) * 1983-07-30 1985-02-07 Blanc Gmbh & Co, 7519 Oberderdingen Elektrische heizplatte fuer ein glaskeramik-kochfeld
ES2006115A6 (es) * 1988-03-18 1989-04-01 Goicoechea Celaya Juan Jose Sistema de cocina.
GB8827611D0 (en) * 1988-11-25 1988-12-29 Gerard Gamble Ltd Food service system
DE4007680A1 (de) * 1990-03-10 1991-09-19 Grass Ag Heizplatte
DE9106849U1 (de) * 1991-05-07 1992-06-11 Grass AG, Höchst, Vorarlberg Kochzonen mit Keramikplatte
DE9105672U1 (de) * 1991-05-07 1991-06-20 Grass AG, Höchst, Vorarlberg Kochzone mit Keramikplatten
DE59509878D1 (de) * 1994-06-27 2002-01-10 Bsh Bosch Siemens Hausgeraete Infrarotgesteuerte Garungseinheit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9735455A1 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1206164A2 (en) * 2000-11-08 2002-05-15 Whirlpool Corporation Device for determining the location of cooking utensils on a cooking hob comprising discrete distributed heating elements
EP1206164A3 (en) * 2000-11-08 2003-11-26 Whirlpool Corporation Device for determining the location of cooking utensils on a cooking hob comprising discrete distributed heating elements
EP1253382A1 (de) * 2001-04-25 2002-10-30 Rational AG Garverfahren und Gargerät mit automatischer Garguterkennung
EP2852248A1 (de) * 2013-09-20 2015-03-25 E.G.O. Elektro-Gerätebau GmbH Vorrichtung und Verfahren zur Topferkennung
WO2018178785A1 (de) * 2017-03-28 2018-10-04 BSH Hausgeräte GmbH Kochfeldvorrichtung
ES2689374R1 (es) * 2017-03-28 2018-11-16 BSH Electrodomésticos España S.A. Dispositivo de campo de cocción

Also Published As

Publication number Publication date
ES2115525A1 (es) 1998-06-16
WO1997035455A1 (es) 1997-09-25
ES2115525B1 (es) 1999-02-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19991001