EP1854337B1 - Dispositif de chauffe pour un appareil de cuisson a induction - Google Patents

Dispositif de chauffe pour un appareil de cuisson a induction Download PDF

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Publication number
EP1854337B1
EP1854337B1 EP05825303A EP05825303A EP1854337B1 EP 1854337 B1 EP1854337 B1 EP 1854337B1 EP 05825303 A EP05825303 A EP 05825303A EP 05825303 A EP05825303 A EP 05825303A EP 1854337 B1 EP1854337 B1 EP 1854337B1
Authority
EP
European Patent Office
Prior art keywords
circuit
heating
inductors
inductor
resonant circuit
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.)
Revoked
Application number
EP05825303A
Other languages
German (de)
English (en)
Other versions
EP1854337A1 (fr
Inventor
Sergio Llorente Gil
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35886329&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1854337(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL05825303T priority Critical patent/PL1854337T3/pl
Publication of EP1854337A1 publication Critical patent/EP1854337A1/fr
Application granted granted Critical
Publication of EP1854337B1 publication Critical patent/EP1854337B1/fr
Revoked legal-status Critical Current
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
    • 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
    • H05B6/04—Sources of current
    • 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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • 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
    • H05B6/36—Coil arrangements
    • H05B6/44—Coil arrangements having more than one coil or coil segment

Definitions

  • the invention relates to a heating device for a Indutationsgarêt according to the preamble of claim 1.
  • an induction cooker having a plurality of inductors which is provided for heating a single heating element, for example a large pot, and arranged accordingly.
  • one or more inductors can be connected by a switching means to a generator, which excites these inductors to heat the heating element for oscillating.
  • the EP 0 926 926 A1 Induction cooking appliance which has a plurality of resonant circuits each having a single inductor and each having at least one capacitor.
  • the invention relates to a heating device for a Indutationsgarêt with a first resonant circuit comprising at least a first inductor for transmitting heat energy to a heating element to be heated and a first circuit for exciting the first resonant circuit and supplying the heating energy to the inductor.
  • the heating device comprises at least one second inductor for the transmission of heating energy to a heating element to be heated, which is part of the first resonant circuit, and a switching means by which the heating energy can be selectively connected to only one of the inductors or simultaneously two inductors in parallel ,
  • a switching means by which the heating energy can be selectively connected to only one of the inductors or simultaneously two inductors in parallel ,
  • the inductors do not necessarily have the same or at least similar impedances as for a serial circuit is appropriate, but it can, for example, a large main inductor and a much smaller secondary inductor can be used. Due to the relatively free choice of inductors a variety of differently designed Indudictionsgarieri can be developed with a uniform design.
  • the switching means By the switching means one of the two or both inductors, preferably directly connected to the circuit for exciting the first resonant circuit.
  • the induction cooking appliance can be held in a particularly simple manner if the supply of heating energy is effected by connecting voltage drawn from a power supply network. In this case, an additional resonant circuit can be dispensed with.
  • the circuit for exciting the first resonant circuit preferably comprises a half-bridge circuit.
  • the second inductor is operated exclusively with the first inductor together.
  • the two inductors are expediently used for heating a single heating element, for example a single pot. They are preferably arranged in the immediate vicinity of each other. Large or elongated cooking appliances can be heated particularly effectively when the inductors are arranged in a contiguous heating area for heating a single heating element.
  • both inductors can be connected by the switching means individually to the first circuit. Both inductors can be treated equally by an operator, and a small pot can e.g. optionally be placed on one or the other inductor for heating.
  • the heating device comprises a rectifier to which both the first resonant circuit and a second resonant circuit with a second circuit for exciting the second resonant circuit and a further inductor are turned on.
  • Unwanted noise when heating a cooking vessel can be avoided by a control unit which is prepared to control the circuits so that the first circuit always resonates the first resonant circuit at the same frequency as the second circuit stimulates the second resonant circuit.
  • the Gleichscnies the resonant circuits can be performed independently of an operation of Indutechnischsgarêts.
  • the heating device comprises a further circuit for exciting a further resonant circuit with a further inductor and a further switching means, wherein the further circuit is selectively connectable by the further switching means with the first or the further resonant circuit.
  • the first resonant circuit can be transmitted by both circuits for excitation a large power without this electrical components of one of the circuits would have to be particularly stressed.
  • the further circuit can support the first circuit by its performance.
  • the heating device comprises a means for measuring a property of the resonant circuit successively with the switching means open and closed and for detecting whether the heating element is arranged on only one or both inductors. It can be automatically recognized, for example by means of a control unit, whether the heating element should be sufficiently heated with an inductor or more uniformly with both inductors, and the switching means can be switched automatically according to the more effective variant. A decision as to whether either or both of the inductors are to be used to heat the heating element can be saved to an operator.
  • the heating device comprises a control unit which is provided for actuating the switching means at a moment at which no voltage is applied to the circuit for excitation of the resonant circuit is applied.
  • the control unit is prepared to interrupt the voltage before switching the switching means or to set to a predetermined value.
  • FIG. 1 shows a section through a pot 2 with a bottom of the pot, which is provided as a heating element 4 for a liquid located in the pot 2 or food.
  • the pot 2 stands on a support plate 6 of an induction hob of a Indumiesgarêts, under which a heater 8 for inductive heating of the heating element 4 is arranged.
  • the heater 8 comprises a plurality of winding blocks 10, each comprising an inner and an outer coil.
  • the inner coils are in this case combined to form a first inductor 12 and the outer coils are combined to form a second inductor 14.
  • the magnetic field generated by the two inductors 12, 14 is directed by a directional structure 16 to the heating element 4 and generates when flowing through the heating element 4 eddy currents that heat the heating element 4.
  • a control unit 18 the generation of the magnetic field is controlled.
  • FIG. 2 a circuit diagram of the heater 8 is shown, which is provided for connection to an AC voltage of a power supply network 20.
  • the heating device 8 comprises the two inductors 12, 14, a capacitive element 22 with two capacitors, a half-bridge circuit 24 having two power transistors 28 for applying a switching voltage to one or both of the inductors 12, 14 and a rectifier 26 comprising two diodes.
  • a switching means 30 the second inductor 14 in addition to the first inductor 12 are connected to the circuit 24.
  • the circuit 24, the capacitive element 22 and one or both of the inductors 12, 14 form a resonant circuit 32 which can be excited by the circuit 24 to oscillate, the circuit 24 heating energy to heat the heating element of one or both of the inductors 12, 14 4 feeds.
  • the first inductor 12 is disposed below a first heating portion 34 of the support plate 6, which in FIG. 3 is shown.
  • the second inductor 14 is disposed below a second heating portion 36.
  • the two heating sections 34, 36 are arranged directly next to each other and together form a heating area 38 for heating an oval or elongate heating element 4 of a cooking vessel, for example a casserole or a fish pot.
  • the switching means 30 only the first inductor 12 is connected to the circuit 24 for exciting the resonant circuit 32.
  • the second inductor 14 does not resonate with the excitation of the resonant circuit 32 by the circuit 24. Heat in the heating element 4 is thus generated only by the magnetic field caused by the first inductor 12.
  • This position of the switching means 30 is suitable for heating a small pot 2 with a small heating element 4, which stands on the first Schuteil Scheme 34.
  • the switching means 30 can be closed and the second inductor 14 are connected to the circuit 24. Now swing both inductors 12, 14, whereby the full heating area 38 is charged with a provided for heating the heating element 4 magnetic field.
  • the second inductor 14 may be dimensioned smaller in this example in its performance than the first inductor, since the second Schuteil Scheme 36 of the surface is slightly smaller than the first Schuteil Scheme 34.
  • the heating powers of the inductors 12, 14 always in a fixed, predetermined relationship to each other.
  • a heating area 40 with two concentrically arranged heating sections 42, 44, as in FIG. 3 is shown.
  • a smaller first Schuteil Complex 42 is surrounded by a larger second Schuteil Complex 44 annular.
  • the switching means 30 is opened, so that the first inductor 12 is connected to the circuit 24.
  • the switching means 30 is closed, and the second inductor 14, which is made more powerful in this example than the first inductor 12, is also connected to the circuit 24 for exciting the resonant circuit 32.
  • FIG. 4 shows a block diagram of the heater 8 from FIG. 2 ,
  • the heater 8 includes the rectifier 26, the circuit 24, the two inductors 12, 14, and the switching means 30.
  • FIG. 5 The block diagram shown shows an alternative heating device 46, to whose rectifier 48 two circuits 50, 52 for the excitation of each resonant circuit 54, 56 are connected.
  • the first resonant circuit 54 here comprises two inductors 58, 60, of which the inductor 60 can be connected to the first circuit 50 via a switching means 62.
  • the second resonant circuit 56 comprises only a single inductor 64.
  • Both circuits 50, 52 are individually controllable by the control unit 18, so that together with the switching means 62 one, two or three inductors 58, 60, 64 can be activated.
  • Such a heater 46 is particularly suitable for a like in FIG.
  • the two circuits 50, 52 are always controlled by the control unit 18 so that all excited inductors 58, 60, 64 are excited to oscillate at the same frequency in order to avoid interference oscillations in the pot 2.
  • FIG. 6 shows a heater 74, which is particularly suitable for heating areas 76, 78 as in FIG. 3 shown.
  • Two inductors 80, 82 are individually or jointly connectable via a respective switching means 84, 86 with the circuit 24 for exciting the resonant circuit 32.
  • the inductors 80, 82 have, for example, the same power ranges and are therefore particularly suitable for arrangement under the same Schuteil Schemeen 88, 90 or 92, 94 of the heating areas 76 and 78, each for heating a very small or small pot 2 or common heating a medium-sized or large elongated pot 2 are provided.
  • the inductors 80, 82 are individually connectable to the circuit 24.
  • both switching means 84, 86 are closed and both inductors 80, 82 are connected to the circuit 24 and thereby excited to transmit energy to the heating element 4.
  • FIG. 7 The diagram shown shows the power P of the inductors 12, 14 and 80, 82 plotted against the switching frequency f s of the circuit 24.
  • the power P is plotted with respect to the maximum power P max of the inductor 12 alone, or 80 or 82, and the switching frequency f s is normalized with respect to the resonant frequency f r of the resonant circuit 32 with only one inductor 12 or 80 or 82 connected.
  • the curve 96 indicates the power of an inductor 12 or 80 or 82 connected individually to the circuit 24.
  • the control unit 18 sets a switching frequency f s corresponding to the desired power P between, for example, 1.0 f r and 1.8 f r .
  • the power is variable in this example between P max and 0.2 P max .
  • FIG. 8 shows a further embodiment, with which this relative power loss can be counteracted.
  • a heating device 104 Shown is a heating device 104, whose components 8 to the heating device are always identified by the same reference numerals. Furthermore, with respect to the same features and functions on the description of the embodiment in the Figures 2 and 4 to get expelled.
  • the heating device 104 has a further circuit 106 for exciting a further oscillating circuit 108 with a further inductor 110.
  • the heating device 104 comprises two further switching means 112, 114, which - as well as the switching means 30 - are actuated by the control unit 18.
  • the inductor 110 may be connected to the circuit 106 and the inductors 12, 14 to the circuit 24 or the inductor 110 to the circuits 24 and 106 or the inductors 12, 14 to the circuits 24 and 106 ,
  • both circuits 24 and 106 can excite the inductors 12, 14 and thus - without a large load on the electrical components of the circuits 24, 106 - both inductors 12, 14 individually with the in FIG. 7 shown curve 96 or together with the power P to curve 98 are operated.
  • This is particularly suitable for use with the heating region 40, each with large heating portions 42, 44 for heating a very large pot 2. It is also possible to arrange all three inductors 12, 14, 110 for use with the heating region 66 immediately adjacent to each other Thompsonteil Schemee 68, 70 with particularly high power P or all three Walkerteil Schemee 68, 70, 72 with distributed power P to operate.
  • the control unit 18 is provided for determining a variable associated with the inductance of the oscillating circuit 32. By measuring this size both with the switching means 30 closed and with the switching means 30 open, the arrangement of a large or a small pot 2 in the heating area 40 can be concluded, and the switching means 30 for efficient heating of the pot 2 or its heating element 4 can be switched accordingly become.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Cookers (AREA)
  • General Induction Heating (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (9)

  1. Dispositif de chauffe (8; 46 ; 74 ; 104) pour un appareil de cuisson à induction comprenant un premier circuit oscillant (32, 54) qui comprend au moins un premier inducteur (12 ; 58 ; 80, 82) destiné au transfert d'énergie de chauffage sur un élément de chauffe (4) à échauffer et un premier circuit (24 ; 50) destiné à exciter le premier circuit oscillant (32, 54) et à alimenter l'énergie de chauffage vers l'inducteur (12 ; 58 ; 80, 82), caractérisé par au moins un deuxième inducteur (14, 60, 80, 82) destiné au transfert d'énergie de chauffage sur un élément de chauffe (4) à échauffer qui fait partie du premier circuit oscillant (32, 54), et par un moyen de commutation (30 ; 62 ; 84, 86) au moyen duquel l'énergie de chauffage peut être amenée de manière sélective seulement à l'un des inducteurs (12 ; 58 ; 80, 82) ou simultanément aux deux inducteurs (12, 14 ; 58, 60 ; 80, 82) par couplage en parallèle.
  2. Dispositif de chauffe (8; 46 ; 74 ; 104) selon la revendication 1, caractérisé en ce que les inducteurs (12, 14 ; 58, 60 ; 80, 82) sont disposés dans une zone de chauffe continue (38 ; 40 ; 66 ; 76 ; 78) pour échauffer un seul élément de chauffe (4).
  3. Dispositif de chauffe (8; 46 ; 74 ; 104) selon la revendication 1 ou 2, caractérisé en ce que les capacités de chauffe des inducteurs (12, 14 ; 58, 60 ; 80, 82) sont situées dans un rapport mutuel fixe prédéterminé.
  4. Dispositif de chauffe (74) selon l'une quelconque des revendications précédentes, caractérisé en ce que les deux inducteurs (80, 82) sont connectables individuellement au premier circuit (24) au moyen du moyen de commutation (84, 86).
  5. Dispositif de chauffe (46) selon l'une quelconque des revendications précédentes, caractérisé par un redresseur (48) auquel sont connectés aussi bien le premier circuit oscillant (54) qu'un deuxième circuit oscillant (56) comprenant un deuxième circuit (52) destiné à exciter le deuxième circuit oscillant (56) et un inducteur supplémentaire (64).
  6. Dispositif de chauffe (46) selon la revendication 5, caractérisé par une unité de commande (18) qui est préparée pour commander les circuits (50, 52) de manière à ce que le premier circuit (50) excite le premier circuit oscillant (54) pour osciller toujours avec la même fréquence que le fait le deuxième circuit (52) pour exciter le deuxième circuit oscillant (56).
  7. Dispositif de chauffe (104) selon l'une quelconque des revendications précédentes, caractérisé par un circuit supplémentaire (106) destiné à exciter un circuit oscillant supplémentaire (108) comprenant un inducteur supplémentaire (110) et par un moyen de commutation supplémentaire (112, 114), le circuit supplémentaire (106) étant connectable de manière sélective au premier circuit oscillant ou au circuit oscillant supplémentaire (108).
  8. Dispositif de chauffe (8 ; 46 ; 74 ; 104) selon l'une quelconque des revendications précédentes, caractérisé par un moyen qui est ménagé pour mesurer une propriété du circuit oscillant (32 ; 54, 56) successivement lorsque le moyen de commutation (30 ; 62 ; 84, 86) est ouvert et lorsqu'il est fermé et pour identifier si l'élément de chauffe (4) est disposé sur seulement un inducteur ou sur les deux inducteurs (12, 14 ; 58, 60 ; 80, 82).
  9. Dispositif de chauffe (8 ; 46 ; 74 ; 104) selon l'une quelconque des revendications précédentes, caractérisé par une unité de commande qui est ménagée pour activer le moyen de commutation (30 ; 62 ; 84, 86) à un moment auquel il n'y a pas de tension sur le circuit (24 ; 50, 52 ; 106) pour activer le circuit oscillant (32 ; 54, 56 ; 108).
EP05825303A 2005-03-01 2005-12-27 Dispositif de chauffe pour un appareil de cuisson a induction Revoked EP1854337B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05825303T PL1854337T3 (pl) 2005-03-01 2005-12-27 Urządzenie grzejne do kuchenki indukcyjnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200500543A ES2265758B1 (es) 2005-03-01 2005-03-01 Dispositivo de calentamiento para una cocina de induccion.
PCT/EP2005/057179 WO2006092179A1 (fr) 2005-03-01 2005-12-27 Dispositif de chauffe pour un appareil de cuisson a induction

Publications (2)

Publication Number Publication Date
EP1854337A1 EP1854337A1 (fr) 2007-11-14
EP1854337B1 true EP1854337B1 (fr) 2012-03-21

Family

ID=35886329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05825303A Revoked EP1854337B1 (fr) 2005-03-01 2005-12-27 Dispositif de chauffe pour un appareil de cuisson a induction

Country Status (7)

Country Link
US (1) US8030601B2 (fr)
EP (1) EP1854337B1 (fr)
AT (1) ATE550909T1 (fr)
DK (1) DK1854337T3 (fr)
ES (2) ES2265758B1 (fr)
PL (1) PL1854337T3 (fr)
WO (1) WO2006092179A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006016551U1 (de) * 2006-10-23 2008-03-06 E.G.O. Elektro-Gerätebau GmbH Induktionsheizeinrichtung
ES2310960B1 (es) * 2006-11-08 2009-11-05 Bsh Electrodomesticos España S.A. Circuito de dispositivo de calentamiento.
ES2335256B1 (es) 2008-01-14 2011-01-17 Bsh Electrodomesticos España, S.A. Campo de cocion por induccion con una pluralidad de cuerpos de calentamiento por induccion.
KR101353313B1 (ko) * 2008-02-25 2014-01-21 삼성전자주식회사 전기조리기기 및 이에 사용되는 유도코일유닛
DE102009018134A1 (de) * 2009-04-15 2010-09-16 E.G.O. Elektro-Gerätebau GmbH Induktionsheizeinrichtung und Verfahren zum Betrieb einer Induktionsheizeinrichtung
ES2366514B1 (es) * 2009-05-15 2012-10-09 Bsh Electrodomesticos España S.A. Dispositivo para colocar sobre un campo de cocción por inducción.
ES2362607B1 (es) * 2009-08-27 2012-06-05 Bsh Electrodomésticos España, S.A. Multiplexación de cargas de calentamiento por inducción.
EP3771288B1 (fr) * 2009-10-05 2021-12-15 Whirlpool Corporation Procédé de fourniture de puissance à des zones de cuisson par induction d'une plaque de cuisson par induction dotée d'une pluralité de convertisseurs de puissance, et plaque de cuisson par induction utilisant ledit procédé
ES2378607B1 (es) * 2009-11-05 2013-03-14 BSH Electrodomésticos España S.A. Campo de cocción con al menos dos inductores de calentamiento.
US20120261405A1 (en) * 2009-12-11 2012-10-18 Panasonic Corporation Induction heating apparatus and induction heating cooker provided with same
ES2388269B1 (es) 2010-03-03 2013-08-23 BSH Electrodomésticos España S.A. Encimera de cocción con al menos una zona de cocción, y procedimiento para accionar una encimera de cocción.
ES2388303B1 (es) 2010-03-03 2013-08-23 BSH Electrodomésticos España S.A. Encimera de cocción con al menos una zona de cocción, y procedimiento para accionar una encimera de cocción.
ES2388028B1 (es) 2010-03-03 2013-08-23 Bsh Electrodomésticos España, S.A. Encimera de cocción con al menos una zona de cocción y procedimiento para accionar una encimera de cocción.
ES2643136T3 (es) 2011-03-29 2017-11-21 BSH Hausgeräte GmbH Dispositivo de conmutación
FR2984038B1 (fr) * 2011-12-13 2018-09-21 Fagorbrandt Dispositif d'alimentation a onduleur, notamment pour appareil de cuisson a induction
CN110463344B (zh) * 2017-03-24 2021-09-24 三菱电机株式会社 感应加热烹调器
EP3603339B1 (fr) * 2017-03-30 2021-10-13 BSH Hausgeräte GmbH Dispositif à plaque de cuisson à induction
KR102071957B1 (ko) * 2018-04-19 2020-01-31 엘지전자 주식회사 제어 알고리즘 및 회로 구조가 개선된 유도 가열 장치
KR102082507B1 (ko) * 2018-05-16 2020-02-27 엘지전자 주식회사 제어 알고리즘 및 회로 구조가 개선된 유도 가열 장치

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EP0376760A1 (fr) * 1988-12-27 1990-07-04 Bonnet S.A. Plaque de cuisson par chauffage par induction
JP2722738B2 (ja) * 1989-12-20 1998-03-09 松下電器産業株式会社 誘導加熱装置
JP2943017B2 (ja) * 1991-01-16 1999-08-30 松下電器産業株式会社 誘導加熱調理器の鍋検知装置
FR2672763B1 (fr) * 1991-02-08 1993-05-07 Bonnet Sa Dispositif inducteur, destine au chauffage par induction de recipients pour la cuisine et procede de commande d'un tel dispositif.
FR2773014B1 (fr) 1997-12-23 2000-03-03 Europ Equip Menager Dispositif d'alimentation de plusieurs circuits resonants par un generateur de puissance a onduleur
FR2806868B1 (fr) 2000-03-21 2002-06-28 Brandt Cooking Dispositif de chauffage par induction de recipient culinaire
DE10231122A1 (de) * 2002-07-05 2004-01-22 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Messen der Temperatur eines metallischen Kochgefäßes
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JP2004296279A (ja) * 2003-03-27 2004-10-21 Hitachi Hometec Ltd 誘導加熱調理器
US7022952B2 (en) * 2003-08-26 2006-04-04 General Electric Company Dual coil induction heating system

Also Published As

Publication number Publication date
US8030601B2 (en) 2011-10-04
ES2265758A1 (es) 2007-02-16
EP1854337A1 (fr) 2007-11-14
DK1854337T3 (da) 2012-07-09
ES2383963T3 (es) 2012-06-27
US20080164249A1 (en) 2008-07-10
ES2265758B1 (es) 2007-11-16
PL1854337T3 (pl) 2012-08-31
WO2006092179A1 (fr) 2006-09-08
ATE550909T1 (de) 2012-04-15

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