EP2506663A1 - Dispositif d'appareil de cuisson - Google Patents

Dispositif d'appareil de cuisson Download PDF

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Publication number
EP2506663A1
EP2506663A1 EP12158059A EP12158059A EP2506663A1 EP 2506663 A1 EP2506663 A1 EP 2506663A1 EP 12158059 A EP12158059 A EP 12158059A EP 12158059 A EP12158059 A EP 12158059A EP 2506663 A1 EP2506663 A1 EP 2506663A1
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EP
European Patent Office
Prior art keywords
frequency
unit
time interval
heating
heating frequency
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
EP12158059A
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German (de)
English (en)
Other versions
EP2506663B1 (fr
Inventor
Claudio Carretero Chamarro
Oscar Gracia Campos
Sergio Llorente Gil
Paul Muresan
Ramon Peinado Adiego
Diego Puyal Puente
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.)
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Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2506663A1 publication Critical patent/EP2506663A1/fr
Application granted granted Critical
Publication of EP2506663B1 publication Critical patent/EP2506663B1/fr
Active 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
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils

Definitions

  • the invention is based on a cooking device device according to the preamble of claim 1.
  • the publication EP 1 951 003 A1 discloses an induction hob having at least two heating frequency units operated according to a particular method to at least substantially avoid intermodulation noise. According to this method, both heating-frequency units are operated at an identical and fixed first frequency in a first time interval. In a second time interval, a heating frequency unit is switched off, while the other heating frequency unit is operated at a fixed second frequency. The two frequencies and the relative lengths of the two time intervals are adjusted so that an average output power of each heating frequency unit corresponds to an operator selected heating power. At the same time a flicker characteristic is minimized.
  • the object of the invention is in particular to provide a generic Garellavorraum that allows an advantageously flexible adjustment of a mean output power.
  • the object is achieved by the features of claim 1 and the method claim 9, while advantageous embodiments and refinements of the invention can be taken from the dependent claims.
  • the invention is based on a cooking appliance device with at least one first and at least one second heating frequency unit and with at least one control unit, which is provided to operate the first heating frequency unit continuously and at least a first time interval with a fixed first frequency, the second heating frequency unit in the first To operate time interval and turn off in at least a second time interval and to minimize at least one Flickerkennharide.
  • control unit is provided to operate the second heating frequency unit in the first time interval with at least one frequency differing by at least 14 kHz, preferably by at least 15 or 16 kHz and particularly advantageously by at least 17 kHz from the first frequency. It can be provided in particular to operate the first heating frequency unit in the second time interval with a changing frequency. Preferably, however, it is provided to operate the first heating frequency unit in the second time interval likewise with a fixed frequency and preferably at a frequency different from the first frequency. It can be provided in particular to operate the second heating frequency unit in the first time interval with a changing frequency. Preferably, however, it is provided to operate the second heating frequency unit in the first time interval with a fixed frequency.
  • the cooking device device is preferably designed as a hob device and particularly advantageously as an induction hob device.
  • a "first time interval” and a “second” time interval are to be understood as meaning, in particular, two temporally successive time intervals of a length greater than 0.
  • the designations "first” and “second” time intervals are intended exclusively for distinguishing the time intervals and, in particular, no statement about a time interval
  • the term "provided” should in particular be understood to mean specially programmed and / or designed and / or equipped.
  • heating frequency unit should in particular be understood to mean an electrical unit which generates an oscillating electrical current, preferably with a frequency of at least 1 kHz, in particular of at least 10 kHz and advantageously of at least 20 kHz, for operation of at least one heating unit.
  • a “heating unit” is to be understood in particular as meaning a unit which is intended to convert electrical energy into heat, at least to a large extent, and thus in particular to heat a food to be cooked.
  • the heating unit comprises a radiant heater, a resistance heater and / or preferably an induction heater provided for this purpose is to convert electrical energy into heat indirectly via induced eddy currents.
  • the heating frequency unit comprises in particular at least one inverter, which preferably comprises two switching units.
  • a “switching unit” is to be understood in particular as meaning a unit which is intended to interrupt a conduction path comprising at least part of the switching unit.
  • the switching unit is a bidirectional unipolar switch which in particular allows a current flow through the switch along the conduction path in both directions and in particular short-circuits an electrical voltage in at least one polarity direction.
  • the inverter comprises at least two bipolar transistors with insulated gate electrode and particularly advantageously at least one damping capacitor.
  • a “conduction path” is to be understood as meaning, in particular, an electrically conductive conductor piece between two points.
  • electrically conductive is to be understood in particular with a specific electrical resistance of at most 10 -4 ⁇ m, in particular of at most 10 -5 ⁇ m, advantageously of at most 10 -6 ⁇ m and particularly advantageously of not more than 10 -7 ⁇ m at 20 ° C.
  • control unit is to be understood in particular as meaning an electronic unit which is preferably at least partially integrated in a control and / or regulating unit of a cooking appliance, in particular an induction hob, and which preferably has an arithmetic unit and in particular in addition to the arithmetic unit a storage unit with a stored therein
  • Control program includes.
  • the control unit is provided to control and / or regulate the heating frequency units by means of control signals and preferably electrical control signals.
  • a "control signal” should be understood in particular to mean a signal which, in particular in at least one operating state, triggers a switching operation of a heating frequency unit, in particular also indirectly.
  • an “electrical control signal” is to be understood in particular to mean a control signal having an electrical potential of at most 30 V, preferably of at most 20 V, particularly advantageously of at most 10 V and in particular of at least 5 V relative to a reference potential.
  • the control signal has a periodicity at least at times, in particular with a period of at most 1 ms, in particular of at most 0.1 ms and advantageously of at most 0.05 ms.
  • the control signal is at least substantially a rectangular signal, which in particular has two discrete values, preferably a switch-on value and a switch-off value.
  • each of the two values corresponds to a switching position of the heating frequency units and in particular their inverter.
  • a "frequency" of a heating frequency unit is to be understood in particular as the frequency of the control signal controlling the heating frequency unit.
  • a heating frequency unit is "operated” should be understood in particular that the frequency of the heating frequency unit is different from zero.
  • a heating frequency unit is operated “continuously” should be understood in particular that the heating frequency unit is operated continuously during a heating mode, wherein the non-zero frequency of the control signal can change.
  • the fact that a heating frequency unit is operated with a "fixed” frequency should in particular be understood to mean that the heating frequency unit is operated with a frequency that is at least substantially constant during a heating mode.
  • An “at least largely immutable frequency” should be understood in particular to mean a frequency which during the heating mode has a fluctuation of at most 10%, in particular of at most 5%, preferably of at most 1% and particularly advantageously of 0%.
  • a "at least substantially negligibly low output power in the relevant time interval” shall be understood to mean in particular an output power which is at most 100 W, in particular at most 50 W, preferably at most 25 W and particularly advantageously 0 W, and / or during the time interval exclusively during a period of time not more than 50%, in particular not more than 25%, preferably not more than 15%. and most advantageously corresponds to at most 10% of a length of the time interval.
  • the control unit is provided to control and / or regulate the at least two heating frequency units by means of the control signals in such a way that an average output power of one of the at least two heating frequency units corresponds at least largely to a nominal power selected by an operator.
  • a relative deviation of the set by the control unit average output power of the target power should be at most 20%, preferably at most 10% and more preferably at most 5%.
  • An "output power" of one of the at least two heating-frequency units should in particular be understood to mean a power which is supplied by the heating-frequency unit in at least one heating operating state.
  • a "mean output power" is to be understood in particular a time-averaged output power.
  • the control unit is in particular provided to make an adjustment of the average output power to the desired power while largely avoiding Intermodulationsgehoffschen.
  • a "substantial avoidance of intermodulation noise” is to be understood in particular as meaning that intermodulation noises having a frequency of less than 17 kHz, in particular less than 16 kHz and preferably less than 14 kHz at a distance of 1 m from the cooking appliance device have a maximum sound pressure level 20 dB, in particular of at most 10 dB, preferably of at most 5 dB, and particularly advantageously have a maximum of 0 dB.
  • the intermodulation sounds are inaudible by an average hearing operator.
  • a “flicker characteristic” is to be understood in particular as a parameter that represents a measure of flicker.
  • flicker is meant, in particular, a subjective impression of an instability of a visual perception, which is caused in particular by a light stimulus whose luminance and / or spectral distribution varies with time.
  • flicker can be caused by a voltage drop of a mains voltage.
  • the patch parameter is a total output power difference, preferably between two points in time of two time intervals and particularly advantageously two adjacent time intervals.
  • a “total output” is understood to mean, in particular, a sum of output powers of all heating-frequency units at a particular point in time.
  • a “total output power difference” is to be understood in particular as a difference of the total output powers at two different points in time.
  • the control unit is provided to lower the flicker characteristic below a threshold.
  • the limit value is preferably a value defined by at least one statutory requirement and / or standard, in particular the standard DIN EN 61000-3-3.
  • an advantageously flexible adjustment of the average output powers of the heating frequency units can be achieved, in particular since the frequency of the second heating frequency unit in the first time interval can be selected to be greater or smaller than the first frequency and the frequency of the first heating frequency unit in the second time interval and the frequency the second heating frequency unit may be variable in the first time interval.
  • a further control option can be provided, which can additionally be used in combination with other known control options.
  • control unit is provided to operate the first heating frequency unit in the second time interval at least temporarily with a frequency which is smaller than the first frequency.
  • control unit is provided to operate the first heating frequency unit during the entire second time interval with a preferably fixed frequency, which is smaller than the first frequency.
  • the frequencies are at least 14 kHz, preferably at least 17 kHz and particularly advantageously at least 20 kHz. This can be intermodulation noises be minimized. Furthermore, switching losses in the heating frequency units can be reduced.
  • control unit is provided to continuously operate the heating frequency unit with the highest setpoint power.
  • a minimization of the patch characteristic can be achieved particularly advantageously.
  • ease of use can be increased advantageously, since just as possible for the heating frequency unit with the highest target power as even as possible power output.
  • control unit is provided in at least one operating state to periodically operate the at least two Schufrequenzajien with a period corresponding to a sum of a length of the first time interval and a length of the second time interval.
  • control unit is provided to control and / or regulate the at least two heating frequency units in each case by means of a control signal and to adapt a duty cycle of at least one of the control signals in at least one operating state.
  • a ratio of a time duration in which the control signal assumes the switch-on value within a period duration to the period duration of the control signal is to be understood as a "duty cycle”.
  • an output of the heating frequency unit can be changed.
  • control unit is intended to "adapt a duty cycle of at least one of the control signals"
  • control unit is provided to change the duty cycle of at least one of the control signals, preferably thereby changing a power output at fixed frequency of a heating frequency unit to reach.
  • the control unit is provided by changing the duty cycle of at least one control signal of at least two Schufrequenzappelen a total output of the at least two Schufrequenzüen in at least one operating state temporally as constant as possible and particularly advantageous a maximum difference of total output power at two different times under a statutory and / or value prescribed by standards. In this way, further adjustment options for the control unit can be developed, whereby an ease of use can be advantageously increased.
  • control unit is provided to adapt the time intervals to desired powers of the at least two heating frequency units after a selection of the frequencies that minimize the flicker characteristic. It is intended, in particular, that a "length of the time intervals is adapted, so that the average output power of one of the at least two heating frequency units comes as close as possible to the nominal power of this heating frequency unit, and preferably identical to this one. This ensures that legal requirements and / or standards regarding flicker are complied with.
  • control unit is provided to prioritize in favor of minimizing intermodulation noise and / or flicker, if operation of the at least two heating frequency units with selected target powers while largely avoiding Intermodulationsgehoffschen and / or flicker is impossible.
  • control unit is intended to "prioritize in favor of minimizing intermodulation noise and / or flicker", if operation of the at least two Schufrequenzöen with selected target powers while largely avoiding Intermodulationsgehoffschen and / or flicker is impossible, should be understood in particular that is provided, an operation of at least one of the at least two Heat frequency units with a different average output power from a target power, thereby minimizing intermodulation noise and / or flicker.
  • the average output power is always less than or equal to the target power. As a result, unsafe operating conditions can be avoided.
  • a method is proposed with a cooking device device with at least one first and at least one second heating frequency unit in which the first heating frequency unit is operated continuously and in at least a first time interval with a fixed first frequency, the second heating frequency unit operated in the first time interval and in at least one second Time interval is turned off and at least a flicker characteristic is minimized, wherein the second heating frequency unit is operated in the first time interval with a by at least 14 kHz, preferably at least 16 kHz and more preferably at least 17 kHz from the first frequency different frequency.
  • a cooking appliance in particular a hob, proposed with a Garellavorraum invention.
  • the hob is an induction hob.
  • FIG. 1 shows a trained as induction hob 16 cooking appliance.
  • the induction hob 16 comprises a hob plate 18, in particular of a glass ceramic, on the two heating zones 20, 22 are marked in a known manner.
  • the hob plate 18 is arranged horizontally in an operational state of the induction hob 16 and provided for setting up cooking utensils.
  • touch-sensitive operating elements 26 and display elements 28 of an operating and display unit 30 of the induction hob 16 are marked on the hob plate 18 in a known manner.
  • the induction hob 16 further comprises a cooking device device having a first and a second heating frequency unit 10, 12 arranged below the hob plate 18 and having a control unit 14 arranged underneath the hob plate 18 FIG.
  • the control unit 14 is integrated in a control and regulation unit 32 of the induction hob 16.
  • One of the heating zone 20 associated and disposed below this induction heating unit is powered by the first heating frequency unit 10 with energy.
  • One of the heating zone 22 associated and arranged below this induction heating unit is powered by the second heating frequency unit 12 with energy.
  • An operator can by means of the operating and Display unit 30 select a heating stage for each of the heating zones 20, 22, resulting in each case a target power P obj1 , P obj2 for the two heating frequency units 10, 12 results.
  • the control unit 14 is provided to adapt a respective average output power P ave1 , P ave2 of the heating frequency units 10, 12 to the desired powers P obj1 , P obj2 while largely avoiding intermodulation noise, so that the selected heating levels of the heating zones 20, 22 can be achieved.
  • the control unit 14 is provided to minimize a flicker characteristic F.
  • P 1 (t) designates the output power of the first heating frequency unit 10 at time t and P 2 (t) the output power of the second heating frequency unit 12 at time t.
  • the control unit 14 controls the first heating frequency unit 10 by means of a control signal V 1 (t) and the second heating frequency unit 12 by means of a control signal V 2 (t).
  • FIG. 2 shows by way of example a not to scale control signal V 2 (t) of the second heating frequency unit 12 in a Cartesian coordinate system.
  • An ordinate axis 36 has a control voltage V 2 and an abscissa axis 38 a time t.
  • the control signal V 2 (t) is during a first time interval T A a period T a square wave signal with a switch-V 0 and a switch-off of 0 volts.
  • the switch-on value V 0 is held during a switch-on time t 0 .
  • a period of the rectangular signal is T 0 .
  • the turn-off value is held.
  • a frequency f 2A of the control signal V 2 (t) is calculated from a reciprocal of the period T 0 .
  • the frequency f 2A is usually between 20 kHz and 100 kHz.
  • a duty cycle D 2A of the control signal V 2 (t) is calculated from a quotient of the switch-on time t 0 divided by the period T 0 .
  • V 2 (t) is the shape the square wave signal is assumed is periodically switched in accordance with a periodic change of the switch-on value V 0 and the Ausschaltwerts a first of the two switching units of the second Schufrequenzappel 12th
  • a second switching unit of the second heating frequency unit 12 is periodically switched in an analogous, but time-shifted manner, so that a high-frequency alternating current to an operation of the heating zone 22 associated induction heating unit arises.
  • T B T -T A
  • the control signal V 2 (t) is identical to zero.
  • a time x separates the first time interval T A and the second time interval T B. After the period T has elapsed, the control signal V 2 (t) is repeated.
  • FIG. 3 shows in a Cartesian coordinate system by way of example two not-to-scale power frequency curves P 1 (f) and P 2 (f).
  • the output powers P 1 and P 2 of the heating frequency units 10, 12 are plotted on an ordinate axis 42. On an abscissa axis 44, the frequency f is plotted.
  • the target powers P obj1 and P obj2 of the heating frequency units 10, 12 are set by an operator. Without limiting the generality, let it be assumed that the first heating frequency unit 10 has the highest setpoint power P obj1 .
  • the second heating frequency unit 12 is operated by the control unit 14 in the first time interval T A with a fixed first frequency f 1A and in the second time interval T B with a fixed second frequency f 1B .
  • the second heating frequency unit 12 is operated by the control unit 14 in the first time interval T A with a fixed frequency f 2A , which is higher by at least 17 kHz than the first frequency f 1A . Since the output power P 2 of the second heating frequency unit 12 at the frequency f 2A exceeds the setpoint power P obj2 of the second heating frequency unit 12, the second heating frequency unit 12 is switched off in the second time interval T B.
  • the frequencies f 1A , f 2A and f 1B are each at least 20 kHz.
  • FIG. 4 shows in a Cartesian coordinate system by way of example two not-to-scale power-time curves P 1 (t) and P 2 (t).
  • the output powers P 1 and P 2 of the heating frequency units 10, 12 are plotted on an ordinate axis 46.
  • the time t is plotted on an abscissa axis 48.
  • One in figure 4 illustrated course of the power-time curves P 1 (t) and P 2 (t) is in a heating operating state of the heating frequency units 10, 12 periodically through the period T.
  • the control unit 14 sets the frequencies f 1A , f 2A and f 1B and the lengths of the time intervals T A and T B so that the average output powers P ave1 and P ave2 of the two heating frequency units 10, 12 respectively the desired power P obj1 and P obj2 correspond, intermodulation noises are largely avoided and the flicker characteristic F identically becomes zero.
  • the last condition takes into account additional limits for the frequencies f 1A , f 2A and f 1B .
  • a curve-specific minimum frequency f min1 and f min2 and thus a maximum achievable output power P 1 , P 2 for each heating frequency unit 10, 12.
  • a maximum frequency f max given by electronic restrictions and thus minimal in a continuous operation achievable output power P 1 , P 2 for each heating frequency unit 10, 12.
  • the second condition is that the first heating frequency unit 10 is to operate in the second time interval T B with a frequency f 1B , which is smaller than the frequency f 1A , with the first heating frequency unit 10 in the first time interval T A is operated.
  • the time intervals T A and T B are adjusted until the average output powers P ave1 and P ave2 of the two heating-frequency units 10, 12 respectively correspond to the target powers P obj1 and P obj2 .
  • a correction can be made in real time, in order to respond to power fluctuations caused, for example, by heating.
  • the output power P 2 of the second heating frequency unit 12 is plotted.
  • the frequency f is plotted.
  • the control unit 14 may additionally be provided to adapt the duty cycles D 1A , D 2A and D 1B to fulfill the above conditions.
  • the conditions are: P 2 0 ⁇ t ⁇ x . D 2 ⁇ A ⁇ P obj ⁇ 2 . P 1 0 ⁇ t ⁇ x . D 1 ⁇ A ⁇ P obj ⁇ 1 ⁇ P 1 x ⁇ t ⁇ T .
  • the control unit 14 is provided, at least one of the two heating frequency units 10, 12 with a lower the setpoint power P obj1 , P obj2 lying average output power P ave1 , P ave2 in order to avoid intermodulation noise and to keep flicker under a limit prescribed by the DIN EN 61000-3-3 standard. That is, at least one of the target powers P obj1 , P obj2 is lowered by the control unit 14 to satisfy the above conditions.
  • an induction hob can also have more than two induction heating units, wherein a plurality of induction heating units can be connected via a switching unit with a heating frequency unit.
  • frequencies of Schufrequenzüen always differ in a first time interval by exactly 17 kHz.
  • the control method described here can be combined with other control methods which are known to a person skilled in the art and appear reasonable.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
EP12158059.1A 2011-03-28 2012-03-05 Dispositif d'appareil de cuisson Active EP2506663B1 (fr)

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ES201130457 2011-03-28

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EP2506663B1 EP2506663B1 (fr) 2017-05-10

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3618568A1 (fr) * 2018-08-30 2020-03-04 LG Electronics Inc. -1- Dispositif de chauffage par induction et procédé de commande de dispositif de chauffage par induction
EP2911472B1 (fr) * 2013-12-20 2020-03-11 BSH Hausgeräte GmbH Dispositif d'appareil de cuisson, en particulier dispositif de plaque de cuisson, doté d'une pluralité d'onduleurs
CN113885615A (zh) * 2020-07-03 2022-01-04 九阳股份有限公司 一种间歇加热的控制方法及烹饪器具
EP3846586A4 (fr) * 2018-08-30 2022-06-22 LG Electronics Inc. Appareil de chauffage par induction et procédé de commande d'appareil de chauffage par induction
EP4044767A4 (fr) * 2019-10-07 2023-11-08 LG Electronics Inc. Dispositif de chauffage par induction et procédé de commande de dispositif de chauffage par induction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3845032A4 (fr) * 2018-08-30 2022-05-11 LG Electronics Inc. Dispositif de chauffage par induction et son procédé de commande
DE102021211480A1 (de) * 2021-10-12 2023-04-13 BSH Hausgeräte GmbH Bedienvorrichtung für ein Gerät

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WO2005043737A2 (fr) * 2003-11-03 2005-05-12 BSH Bosch und Siemens Hausgeräte GmbH Procede d'utilisation d'un circuit de convertisseur
WO2006117182A1 (fr) * 2005-05-04 2006-11-09 E.G.O. Elektro-Gerätebau GmbH Procede et dispositif d'alimentation electrique de plusieurs bobines d'induction d'un appareil d'induction
US20060289489A1 (en) * 2005-05-09 2006-12-28 Dongyu Wang Induction cooktop with remote power electronics
EP1951003A1 (fr) 2007-01-23 2008-07-30 Whirlpool Corporation Procédé de commande d'induction d'une plaque de cuisson et d'induction d'une plaque de cuisson adaptée à un tel procédé
US20100237065A1 (en) * 2009-03-18 2010-09-23 Delta Electronics, Inc. Heating device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005043737A2 (fr) * 2003-11-03 2005-05-12 BSH Bosch und Siemens Hausgeräte GmbH Procede d'utilisation d'un circuit de convertisseur
WO2006117182A1 (fr) * 2005-05-04 2006-11-09 E.G.O. Elektro-Gerätebau GmbH Procede et dispositif d'alimentation electrique de plusieurs bobines d'induction d'un appareil d'induction
US20060289489A1 (en) * 2005-05-09 2006-12-28 Dongyu Wang Induction cooktop with remote power electronics
EP1951003A1 (fr) 2007-01-23 2008-07-30 Whirlpool Corporation Procédé de commande d'induction d'une plaque de cuisson et d'induction d'une plaque de cuisson adaptée à un tel procédé
US20100237065A1 (en) * 2009-03-18 2010-09-23 Delta Electronics, Inc. Heating device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2911472B1 (fr) * 2013-12-20 2020-03-11 BSH Hausgeräte GmbH Dispositif d'appareil de cuisson, en particulier dispositif de plaque de cuisson, doté d'une pluralité d'onduleurs
EP3618568A1 (fr) * 2018-08-30 2020-03-04 LG Electronics Inc. -1- Dispositif de chauffage par induction et procédé de commande de dispositif de chauffage par induction
EP3846587A4 (fr) * 2018-08-30 2022-06-22 LG Electronics Inc. Appareil de chauffage par induction et procédé de commande d'appareil de chauffage par induction
EP3846586A4 (fr) * 2018-08-30 2022-06-22 LG Electronics Inc. Appareil de chauffage par induction et procédé de commande d'appareil de chauffage par induction
US11540360B2 (en) 2018-08-30 2022-12-27 Lg Electronics Inc. Induction heating device and method for controlling induction heating device
EP4044767A4 (fr) * 2019-10-07 2023-11-08 LG Electronics Inc. Dispositif de chauffage par induction et procédé de commande de dispositif de chauffage par induction
CN113885615A (zh) * 2020-07-03 2022-01-04 九阳股份有限公司 一种间歇加热的控制方法及烹饪器具

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EP2506663B1 (fr) 2017-05-10
ES2632582T3 (es) 2017-09-14

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