EP1217873B1 - Procédé et dispositif de détection de la température d'un ustensile de cuisine - Google Patents

Procédé et dispositif de détection de la température d'un ustensile de cuisine Download PDF

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Publication number
EP1217873B1
EP1217873B1 EP01128793A EP01128793A EP1217873B1 EP 1217873 B1 EP1217873 B1 EP 1217873B1 EP 01128793 A EP01128793 A EP 01128793A EP 01128793 A EP01128793 A EP 01128793A EP 1217873 B1 EP1217873 B1 EP 1217873B1
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EP
European Patent Office
Prior art keywords
measuring element
cooking
hotplate
temperature
cooking vessel
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.)
Expired - Lifetime
Application number
EP01128793A
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German (de)
English (en)
Other versions
EP1217873A3 (fr
EP1217873A2 (fr
Inventor
Ralf Dr. Dorwarth
Martin Baier
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
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP1217873A2 publication Critical patent/EP1217873A2/fr
Publication of EP1217873A3 publication Critical patent/EP1217873A3/fr
Application granted granted Critical
Publication of EP1217873B1 publication Critical patent/EP1217873B1/fr
Anticipated expiration legal-status Critical
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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
    • 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
    • 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
    • F24C15/08—Foundations or supports plates; Legs or pillars; Casings; Wheels
    • F24C15/083—Anti-tip arrangements
    • 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
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to a method and a device for detecting the temperature of a cooking vessel according to the preamble of claim 1 and 8 and claim 9.
  • the cooking vessel is advantageously on a cooking or heating plate, for example a glass ceramic plate, preferably a thermally operated heating device in the region of a heating zone of the heater set up.
  • Heating appliances are commonly used today with usually consisting of glass ceramic cooking plates on which one or more cooking or heating zones are defined, each arranged below the cooking plate Heating devices are heated.
  • the heating devices may, for example, in the form of electric radiant heaters or in the form of induction devices with one or more induction coils for inductive Be heated the set up on the associated cooking zone cooking vessels be formed.
  • a cooking operation is controlled by pre-set by means of a cooking zone associated control element for the desired cooking performance level of the cooking zone and the cooking process is then monitored by an operator.
  • the quality of the cooking result depends essentially on the experience of the operator, which usually no accurate detection of the temperature of the cooking vessel or the heating material contained therein is performed.
  • US-A-3 742 179 shows a temperature sensor which may be formed as a thermistor and is arranged in a mobile, portable mat.
  • the mat contains a complex electrical structure with a resonant circuit, a rectifier and coils and. It is to be regarded as an active device with a power supply via the coil.
  • the mat is placed on a cooktop with inductive heating so that it is in good thermal contact with an installed inductively heated cooking vessel.
  • the signal of the temperature detection of the sensor is transmitted through a coil to a further coil arranged below the cooktop, from which the signals for temperature evaluation can be tapped.
  • GB-A 2 072 334 describes how, by means of an IR-sensitive photodiode, which is connected via light guides to a reflector on which an IR-transparent glass plate can rest, the temperature at the bottom of a cooking vessel can be interrogated. Measuring elements or the like are not present here at all, since the bottom of the cooking vessel is queried directly.
  • the invention has for its object to provide a method and an apparatus for detecting the temperature of cooking plates set on cooking plates, which avoid the disadvantages of the prior art. In particular, should be possible without restriction in the handling of the cooking vessels accurate temperature detection.
  • the invention proposes a device with the features of claim 1 and 8 and a method with the features of claim 9. Preferred developments are specified in the dependent claims. The wording of all claims is incorporated by express reference into the content of the description.
  • At least one flat measuring element is provided in the region of a heating zone to be monitored on the top of the cooking vessel facing the top of a cooking vessel to be set up and in contact with the bottom of the cooking vessel, whose surface is normally a fraction of the total area corresponds to the associated heating zone.
  • the temperature of this measuring element is determined, for which purpose usually at least one sensor is provided for detecting the temperature of the measuring element. Since the measuring element is formed so that the normally largely flat or slightly curved bottom of a raised cooking vessel under the influence of the cooking vessel weight over a large area on the measuring element is pressed, the temperature of the measuring element is due to heat conduction usually quickly on the temperature of the cooking vessel bottom.
  • the measuring element expediently consists of a good heat-conducting material and has a low heat capacity.
  • a certain wear resistance or scratch resistance or abrasion resistance is advantageous so that even after many years of operation no wear-related functional impairments are to be feared.
  • the determination of the temperature of the measuring element is carried out from below through the cooking plate.
  • This makes it possible to accommodate devices for detecting the temperature of the external measuring elements protected, for example, in the largely hermetically sealed space below the glass ceramic plate of a cooktop.
  • On lines or the like, which lead to the top of the plate to the measuring element can be dispensed with.
  • a measuring resistor element for example by printing, with the utilization of the heat conduction through the hotplate, the Meßelementtemperatur can be determined.
  • At least one infrared sensor below the cooking plate possibly at a distance therefrom be arranged, with the aid of which the temperature of the cooking plate facing bottom of the measuring element can be detected.
  • the material of the cooking plate in this case should have sufficient transmission for the heat radiation used for the measurement. Since the Meßelementunterseite regardless of the Kochgefäßeigenschaften a certain of the type of the measuring element and possibly the hob surface, defined emissivity for thermal radiation, such a system with any type of cooking vessels can work exactly without the cooking vessel itself special precautions to secure a particular Abstrahldite must be made. This allows users of such systems without special investment in the purchase of cooking vessels to take advantage of a temperature measurement using infrared sensors.
  • a measuring element according to the invention is formed either by a material layer applied to the top of the hotplate in a self-adhesive manner, for example by a material layer applied in a thin-layer process or thick-film process, in particular a temperature-resistant ink layer.
  • a material layer applied in a thin-layer process or thick-film process in particular a temperature-resistant ink layer.
  • a particularly good adhesion of the measuring element can be achieved on the cooking plate top, also shape and / or thickness of the measuring element can be adapted by the process control in the coating in a simple manner to the desired Meßelementdesign.
  • suitable color layers can be used, as they are also used in the conventional decoration of glass ceramic surfaces. The order can be made in the same process step. If necessary, metal particles can be added.
  • At least one measuring element is formed by a separate piece of material, for example a piece of a metal foil, which by means of suitable fastening means, for example by gluing, on the hotplate top side can be attached.
  • suitable fastening means for example by gluing
  • the top of the measuring element slightly surmounted the top of the cooking plate, that is raised relative to the cooking plate top.
  • small protrusion heights of less than about 0.2 mm are preferred in order to keep the height of any resulting air gap between the top of the cooking plate and cooking vessel underside low.
  • the supernatant heights between about 0.05 mm and about 0.2 mm, in particular about 0.1 mm.
  • the cooking zone may be expedient if several, laterally spaced measuring elements are provided in the cooking zone, which can be ensured that even at Kochgefäßstiln that are not optimally suitable for the size of the cooking zone, always at least one measuring element accurate Temperaturmeßhong supplies.
  • a triangular arrangement of three normally identical measuring elements by which it can be ensured that a cooking vessel sufficient floor space is supported tip over three points and can not wobble.
  • an arrangement of several measuring elements on a circle will be advantageous, the diameter of which is slightly smaller or approximately equal to the diameter of typical alsforder cooking vessels on the corresponding heating zone, so that a support in the outer edge region of a cooking vessel bottom is ensured.
  • the invention which proposes in preferred embodiments, one or more Referenzmeß vom for infrared temperature measurement from the inside of a glass ceramic hob out, also relates to heat appliances, which are equipped with a temperature detection device according to the invention, in particular electric heaters. It is particularly advantageous for use in induction cookers, where the heat for heating up-arranged cooking vessels in the wall material of the cooking vessel itself, in particular in the cooking vessel bottom, is carried out by inductively generated eddy currents. Especially in such electric heaters, the accurate determination of the cooking vessel temperature is useful because an indirect temperature monitoring, for example, by monitoring the cooking plate temperature, may be inaccurate, possibly because of large temperature differences between cooking plate and cooking vessel exist.
  • Inductive cooking systems are compared to also possible radiation heating systems also particularly suitable because in radiant heating systems normally the at least one measuring element is heated directly from below by thermal radiation, so that, if necessary, temperature differences can result to the cooking vessel temperature. Furthermore, it is usually easier in inductive cooking systems, below the hot plate, for example in the vicinity of an induction coil to install protected one or more heat-sensitive infrared sensors, since in this area compared to radiant heating systems normally prevail significantly lower temperatures, which the functionality and life of Can improve infrared sensors.
  • the material of the hotplate can be chosen so that it can be at a maximum of 250 ° C to 300 ° C, especially in the temperature range of typical pot bottom temperatures, which are normally below 140 ° for cooking, and for example when frying for the appropriate heat radiation especially is permeable.
  • a transmission capability at higher temperatures, ie at shorter wavelengths of heat radiation, as required, for example, for glass ceramic panels in radiant heating systems, is not absolutely necessary, so that the hob material can be optimally matched to the requirements of temperature detection in terms of its transmission properties.
  • FIG. 1 shows a schematic representation of a preferred embodiment of a temperature detecting device according to the invention, which is installed at an induction cooking.
  • Fig. 2 shows a plan view of the induction cooking on Fig. 1st
  • the schematic vertical section of Fig. 1 shows a section of an electric cooker whose top or work surface is defined by a horizontal glass ceramic plate 2, which may have a single or more spaced cooking or cooking or heating zones 3.
  • the heaters 4 provided for the individual heating zones are arranged opposite the inside or underside 5 of the plate 2 and are shown in the inductive Electric heater formed by Mowindige in the example shown, planar induction coils 6, which are each secured at a small distance below the glass ceramic plate 2.
  • the induction coil 6 shown by way of example is connected to a high-frequency generator, not shown, of the cooking appliance.
  • cylindrical and downwardly funnel-shaped widening heat shields 7 are attached in their plate-facing area, which ensure that the electromagnetic alternating field generated by the coil 6 is strongly attenuated inside and below the shield 7 and the area the plate 2 is largely shielded down radiant heat.
  • the shielded area 5 are shown with visual contact to the underside of the plate schematically illustrated infrared sensors 8, for example, with an infrared-sensitive diode arranged, which are connected to a transmitter 9 for processing the voltage provided by the infrared sensors voltage signals.
  • the transmitter 9 may be arranged on a printed circuit board which is fixed in the hermetically sealed space below the glass ceramic plate 2 and carries the electronic components of an electronic control device for the electrical device 1.
  • the shape and size of the induction coil 6 associated, in the example circular heating zone 3 is defined in the interior of the cooktop by a induction coil with radial distance surrounding, reaching down to the bottom 5 of the glass ceramic plate 2 ring 10, which consists of a electromagnetic radiation of the coil. 2 shielding, electrically conductive material, such as aluminum may exist.
  • the outer boundary of the round heating zone 3 may be marked by a ring of printed decorative ink, not shown, in order to provide a correct position for a user, To allow the most centric installation of cooking vessels.
  • hotplates 2 made of a transparent material for light in the visible spectrum material, the boundary of the cooking zone can be seen through the visible in this case from above ring 10.
  • three flat, circular ink layer areas 15, 16, 17 are applied on the hotplate top side 11, the diameter of which is in each case a fraction, for example about one tenth of the diameter of the cooking zone.
  • the color layer circuits can be used, for example, in thin-film or thick-film technology, e.g. be applied by printing and have typical thicknesses in the range of about 0.1 mm, so that the substantially flat top sides 18, 19, 20 of the color circles relative to the top plate 11 are evenly raised.
  • the centers of the color circles 15, 16, 17 lie evenly spaced on a circle whose diameter may be about 10% to 30% smaller than the cooking zone diameter.
  • the raised color layers form a triangular arrangement, to which a cooking vessel 25, adapted in size to the size of the cooking zone 3, can be set up in a tilt-proof and wobble-free manner. If the cooking vessel 25 is placed more or less centrally in the cooking zone, the largely flat or slightly dome-shaped curved cooking vessel bottom 26, the tops 18, 19, 20 of the color dots 15, 16, 17 respectively over substantially the entire surface, so that under the weight of the cooking vessel and the cooking material therein a surface contact pressure between the ink layer elements 15, 16, 17 and the cooking vessel bottom 26 is ensured.
  • the ink layer circuits 15, 16, 17, which can be reliably adhered in a cost-effective manner, form measuring elements of a temperature-detecting device, which allows the temperature of the cooking vessel, in particular of the cooking vessel bottom 26, to be reduced in a cost-effective manner reliable and accurate.
  • at least one of the measuring elements 15, 16, 17 with respect to the located below the plate 2 infrared sensor 8 is arranged so that the standing in contact with the top plate 11 underside of the measuring element is in visual communication with the infrared sensor 8.
  • a heat radiation-conducting connection between the infrared sensor and the measuring element underside can also be created with the aid of one or more mirrors suitable for the reflection of infrared radiation and / or with the aid of heat radiation-conducting optical fibers.
  • a temperature detection according to the invention is particularly well suited for automatic, sensor-assisted cooking systems in which the heating power of the respective cooking zones associated heating devices depending on the Kochgut- or Cooking vessel temperature is controllable.
  • the detected temperature can also be displayed only to allow an operator a cooking food gently and effectively cooking, frying, frying o.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Electric Stoves And Ranges (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Cookers (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Control Of Resistance Heating (AREA)

Claims (10)

  1. Dispositif pour détecter la température d'un récipient de cuisson (25), qui est posé sur une plaque de cuisson, en particulier une plaque vitrocéramique (2), d'un appareil de chauffage (1) dans la région d'une zone chauffante (3), dans lequel, dans la région de la zone chauffante (3) sur la face supérieure (11) de la plaque de cuisson (2) est agencé au moins un élément de mesure plat (15, 16, 17) qui possède une surface supérieure (18, 19, 20) prévue pour venir en contact physique avec un fond (26) du récipient de cuisson (25), et dans lequel est prévu un système (8) pour déterminer la température de l'élément de mesure, caractérisé en ce qu'au moins un élément de mesure (15, 16, 17) est formé par une couche de matériau autocollante appliquée sur la face supérieure (11) de la plaque de cuisson (2), ou par un morceau de matériau séparé fixé sur la face supérieure (11) de la plaque de cuisson, et dans lequel au moins un détecteur est agencé au-dessous de la plaque de cuisson (2) pour détecter la température de l'élément de mesure (15, 16, 17).
  2. Dispositif selon la revendication 1, caractérisé en ce que ledit au moins un détecteur est un détecteur à infrarouges (8).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'au moins un élément de mesure (15, 16, 17) est formé par une couche colorée imprimée.
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'au moins un élément de mesure (15, 16, 17) est formé par une feuille métallique séparée fixée sur la face supérieure (11) de la plaque de cuisson.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la face supérieure (18, 19, 20) de l'élément de mesure (15, 16, 17) dépasse légèrement au-dessus de la face supérieure (11) de la plaque de cuisson, de préférence de moins de 0,2 mm, en particulier environ entre 0,05 mm et 0,15 mm.
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu plusieurs éléments de mesure (15, 16, 17) dans la région de la zone de cuisson (3), en particulier trois éléments de mesures agencés suivant un triangle.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'au moins un élément de mesure (15, 16, 17) est agencé de façon excentrique par rapport à un centre de la zone de cuisson (3) et/ou en ce qu'aucun élément de mesure n'est agencé au centre de la zone de cuisson.
  8. Appareil de chauffage électrique comprenant une plaque de cuisson, en particulier une plaque vitrocéramique sur laquelle est définie au moins une zone chauffante susceptible d'être chauffée au moyen d'un dispositif de chauffage agencé au-dessous de la plaque de cuisson, et comprenant un dispositif pour détecter la température d'un récipient de cuisson posée sur la zone de cuisson, caractérisé en ce que le dispositif pour détecter la température du récipient de cuisson (25) est réalisé selon l'une des revendications 1 à 7.
  9. Procédé pour détecter la température d'un récipient de cuisson (25) qui est posé sur une plaque de cuisson, en particulier une plaque vitrocéramique (2) d'un appareil de chauffage (1), de préférence électrique, dans la région d'une zone chauffante (3), caractérisé par les étapes suivantes :
    - on fournit au moins un élément de mesure plat (15, 16, 17) avec une face supérieure (18, 19, 20) prévue pour venir en contact physique avec un fond (26) du récipient de cuisson (25) dans la région de la zone de cuisson (3), au moins un élément de mesure (15, 16, 17) est formé par une couche de matériau autocollant appliqué sur la face supérieure (11) de la plaque de cuisson (2) ou par un morceau de matériau séparé fixé sur la face supérieure (11) de la plaque de cuisson, et au-dessous de la plaque de cuisson (2) est agencé au moins un capteur pour détecter la température de l'élément de mesure (15, 16, 17) ;
    - on pose un récipient de cuisson (25) dans la région de la zone de cuisson de telle manière qu'une surface de fond du récipient de cuisson entre en contact physique avec la face supérieure de l'élément de mesure ;
    - on détermine la température de l'élément de mesure.
  10. Procédé selon la revendication 9, caractérisé en ce que la détermination de la température de l'élément de mesure (15, 16, 17) a lieu depuis le dessous à travers la plaque de cuisson, et en ce que l'on saisit de préférence le rayonnement thermique rayonné à travers la plaque de cuisson depuis la face inférieure (21, 22,23) de l'élément de mesure.
EP01128793A 2000-12-21 2001-12-04 Procédé et dispositif de détection de la température d'un ustensile de cuisine Expired - Lifetime EP1217873B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10064621A DE10064621A1 (de) 2000-12-21 2000-12-21 Verfahren und Vorrichtung zur Erfassung der Tenperatur eines Kochgefäßes
DE10064621 2000-12-21

Publications (3)

Publication Number Publication Date
EP1217873A2 EP1217873A2 (fr) 2002-06-26
EP1217873A3 EP1217873A3 (fr) 2003-11-05
EP1217873B1 true EP1217873B1 (fr) 2006-06-28

Family

ID=7668701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128793A Expired - Lifetime EP1217873B1 (fr) 2000-12-21 2001-12-04 Procédé et dispositif de détection de la température d'un ustensile de cuisine

Country Status (6)

Country Link
US (1) US20030206572A1 (fr)
EP (1) EP1217873B1 (fr)
AT (1) ATE332071T1 (fr)
AU (1) AU781345B2 (fr)
DE (2) DE10064621A1 (fr)
ES (1) ES2267657T3 (fr)

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JP4125646B2 (ja) * 2003-07-04 2008-07-30 松下電器産業株式会社 誘導加熱装置
EP2096897B1 (fr) * 2006-12-18 2017-11-22 Panasonic Corporation Dispositif de cuisson à chauffage par induction
CA2745432C (fr) * 2008-12-03 2017-07-18 Oy Halton Group Ltd. Systeme et procede de commande d'ecoulement d'echappement
ES2356442B1 (es) * 2009-01-13 2012-03-13 Bsh Electrodomesticos España, S.A Campo de cocción con una placa de cubierta.
ES2361106B1 (es) * 2009-04-17 2012-04-20 Bsh Electrodomesticos España S.A Placa de cubierta para un campo de cocción.
FR2965330A1 (fr) * 2010-09-23 2012-03-30 Jaeger Capteur pour inducteur ameliore
WO2013034528A1 (fr) * 2011-09-05 2013-03-14 BSH Bosch und Siemens Hausgeräte GmbH Dispositif pour appareil électroménager pourvu d'un capteur d'infrarouge
BR112014030580B1 (pt) * 2012-06-07 2020-12-01 Oy Halton Group Ltd método e sistema de detecção de uma condição em um sistema de ventilação de exaustão
DE102012213831A1 (de) * 2012-08-03 2014-05-22 E.G.O. Elektro-Gerätebau GmbH Messeinrichtung und System
DE102013102112A1 (de) * 2013-03-04 2014-09-18 Miele & Cie. Kg Kocheinrichtung
DE102013102107A1 (de) * 2013-03-04 2014-09-18 Miele & Cie. Kg Kocheinrichtung und Verfahren zum Betreiben
ES2526622B1 (es) * 2013-07-09 2015-10-26 Bsh Electrodomésticos España, S.A. Dispositivo de aparato doméstico
ES2597752B1 (es) * 2015-07-20 2017-10-25 Bsh Electrodomésticos España, S.A. Dispositivo de campo de cocción
ITUB20154671A1 (it) * 2015-10-14 2017-04-14 Alessandro Condini Metodo per il controllo di una sorgente di calore appartenente a un apparato di cottura e apparato di cottura configurato per attuare detto metodo
CN107289470B (zh) * 2016-04-11 2019-06-14 众智光电科技股份有限公司 具有温度感测功能的瓦斯炉
US20180199401A1 (en) * 2017-01-09 2018-07-12 Nuwave, Llc Induction Wok

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GB8709051D0 (en) * 1987-04-15 1987-05-20 Emi Plc Thorn Thermochromic temperature sensor
DE19500351A1 (de) * 1995-01-07 1996-07-11 Philips Patentverwaltung Kochgerät
DE19546386A1 (de) * 1995-12-12 1997-06-19 Bosch Siemens Hausgeraete Topf für eine sensorgesteuerte Garungseinheit
DE19734960A1 (de) * 1997-08-13 1999-02-18 Ako Werke Gmbh & Co Kochzone
DE19820108C2 (de) * 1998-05-06 2001-03-15 Schott Glas Anordnung eines wärmeleitenden keramischen Trägers mit einem Heizkörper als Kochzone in einer Aussparung einer Kochfläche

Also Published As

Publication number Publication date
DE50110327D1 (de) 2006-08-10
EP1217873A3 (fr) 2003-11-05
DE10064621A1 (de) 2002-06-27
EP1217873A2 (fr) 2002-06-26
US20030206572A1 (en) 2003-11-06
AU781345B2 (en) 2005-05-19
ATE332071T1 (de) 2006-07-15
AU9725901A (en) 2002-08-22
ES2267657T3 (es) 2007-03-16

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