EP3484242B1 - Dispositif formant appareil de cuisson inductif - Google Patents

Dispositif formant appareil de cuisson inductif Download PDF

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Publication number
EP3484242B1
EP3484242B1 EP18200586.8A EP18200586A EP3484242B1 EP 3484242 B1 EP3484242 B1 EP 3484242B1 EP 18200586 A EP18200586 A EP 18200586A EP 3484242 B1 EP3484242 B1 EP 3484242B1
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EP
European Patent Office
Prior art keywords
time interval
induction
induction heating
heating elements
phase shift
Prior art date
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Application number
EP18200586.8A
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German (de)
English (en)
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EP3484242A1 (fr
Inventor
Andres Abellanas Sanchez
Claudio Carretero Chamarro
Jorge Gaston Puig
Pablo Jesus Hernandez Blasco
Ignacio Lope Moratilla
Antonio Muñoz Fumanal
Ramon Peinado Adiego
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP3484242A1 publication Critical patent/EP3484242A1/fr
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    • 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
    • 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
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them

Definitions

  • the invention relates to an induction cooking device according to the preamble of claim 1 and a method for operating an induction cooking device according to the preamble of claim 10.
  • An induction cooking appliance device with two induction heating elements which form a common heating zone is already known from the prior art.
  • a control unit operates the induction heating elements in an operating state with the same frequency and with a fixed phase shift, which remains unchanged throughout the entire cooking process.
  • JP 2007 080553 A and EP 2 445 307 A1 disclose an induction cooker device according to the preamble of claim 1.
  • the object of the invention is in particular to provide a device of the generic type with improved properties with regard to heating.
  • the object is achieved according to the invention by the features of claims 1 and 10, while advantageous configurations and developments of the invention can be found in the subclaims.
  • the invention is based on an induction cooking device, in particular an induction hob device, with at least two induction heating elements and with at least one control unit, which operates the induction heating elements in at least one first time interval with a first phase shift in at least one operating state.
  • the control unit in the operating state, operates the induction heating elements in at least one second time interval different from the first time interval with a second phase shift different from the first phase shift.
  • the configuration according to the invention makes it possible, in particular, to achieve advantageous and / or optimal and / or symmetrical heating of cookware that has been set up in particular.
  • asymmetrical heating in the first time interval can be compensated for by complementary asymmetrical heating in the second time interval, as a result of which optimally symmetrical heating can be provided in particular when the time intervals overlap.
  • a better heat distribution can in particular be made possible than in the case of an embodiment with an essentially unchanged phase shift.
  • can a dependency on contacting the induction heating elements can be minimized and advantageously completely averaged out.
  • a distribution of an available power to the induction heating elements can be optimized in particular by the various phase shifts in the time intervals, whereby in particular an advantageous heat distribution can be made possible.
  • an “induction cooking device”, in particular an “induction hob device”, should be understood to mean in particular at least a part, in particular a subassembly, of an induction cooking device, in particular an induction hob.
  • the induction cooking appliance device could, for example, be designed as an induction baking oven device and / or an induction grill device.
  • the induction cooking appliance device is advantageously designed as an induction hob device.
  • an “induction heating element” is to be understood in this context in particular as an element which is preferably provided to provide an electromagnetic alternating field, in particular with a frequency between 20 kHz and 100 kHz, which is in particular provided in an erected, in particular metallic, preferably ferromagnetic cookware base to be converted into heat by eddy current induction and / or magnetic reversal effects.
  • control unit is to be understood in particular as an electronic unit which is preferably at least partially integrated in a control and / or regulating unit of an induction cooking appliance and which is preferably provided to control and / or at least the induction heating elements and / or at least one heating frequency unit to regulate.
  • the control unit preferably comprises a computing unit and, in particular, in addition to the computing unit, a memory unit with a control and / or regulating program stored therein which is provided to be executed by the computing unit.
  • the induction cooking appliance device has in particular at least one heating frequency unit which supplies at least one of the induction heating elements with energy in the operating state.
  • a "heating frequency unit” is to be understood in particular as an electrical unit that generates an oscillating electrical signal, preferably at a frequency of at least 1 kHz, in particular at least 10 kHz, advantageously at least 20 kHz, and in particular at maximum 100 kHz for an induction heating unit.
  • the heating frequency unit is provided to provide a maximum electrical power of at least 1000 W, in particular at least 2000 W, advantageously at least 3000 W and preferably at least 3500 W, required by at least one of the induction heating elements.
  • the heating frequency unit has in particular at least one inverter, which preferably has at least two, preferably series-connected, bidirectional unipolar switches, which are in particular formed by a transistor and a diode connected in parallel, and particularly advantageously each have at least one damping capacitance connected in parallel to the bidirectional unipolar switches, which is in particular formed by at least one capacitor.
  • a voltage tap of the heating frequency unit is arranged in particular at a common contact point of two bidirectional unipolar switches.
  • the induction cooking appliance device advantageously has at least two heating frequency units which are in particular assigned to the at least two induction heating elements.
  • a first heating frequency unit is assigned to a first induction heating element of the induction heating elements and a second heating frequency unit different from the first heating frequency unit is assigned to a second induction heating element of the induction heating elements different from the first induction heating element.
  • the expression that a heating frequency unit is "assigned" to an induction heating element is to be understood in particular as meaning that the heating frequency unit supplies the induction heating element with energy in at least one operating state in which the induction heating element in particular heats cookware and provides an alternating electromagnetic field.
  • control unit opertes at least one induction heating element
  • the control unit controls at least one heating frequency unit assigned to the induction heating element and supplies energy to the induction heating element by means of the heating frequency unit.
  • the induction heating elements could be arranged in a full bridge circuit in at least one assembled state.
  • the induction heating elements are advantageously arranged in at least one assembled state in a half-bridge circuit.
  • phase shift between two induction heating elements is to be understood in particular as meaning that an oscillation, in particular a sinusoidal oscillation, a voltage applied to a first induction heating element of the induction heating elements and an oscillation, in particular a sinusoidal oscillation, of a voltage applied to a second induction heating element of the induction heating elements are spaced zero crossings exhibit.
  • the phase shift assumes an amount which corresponds to a distance between the zero crossings of the voltages.
  • the first time interval and the second time interval are in particular free of time overlap and in particular have at most one point in time in common, which in particular could be a transition and / or change between the time intervals.
  • a power output by the induction heating elements in the first time interval and / or a power output by the induction heating elements in the second time interval advantageously a power output by the induction heating elements in the first time interval and a power output by the induction heating elements in the second time interval, are unequal Zero and in particular greater than zero.
  • Provided is to be understood in particular as specifically programmed, designed and / or equipped.
  • the fact that an object is provided for a specific function should be understood in particular to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
  • control unit could, for example, periodically repeat the first time interval and the second time interval and in particular dispense with a third time interval.
  • a sum of a duration of the first time interval and a duration of the second time interval could result in a period duration.
  • control unit preferably operates the induction heating elements in at least one third time interval different from the first time interval and from the second time interval with a third phase shift different from the first phase shift and from the second phase shift.
  • control unit could provide a number of x different time intervals in the operating state and, in these time intervals, operate the induction heating elements with a number of y different phase shifts, with the parameters x and y in particular being integers greater than three and where in particular the parameter x could be greater than or equal to the parameter y.
  • the parameters x and y in particular being integers greater than three and where in particular the parameter x could be greater than or equal to the parameter y.
  • a high degree of flexibility can thereby be achieved.
  • the control unit repeats the first time interval and the second time interval periodically in the operating state.
  • the expression that the control unit repeats at least one of the time intervals "periodically" in the operating state is to be understood in particular to mean that the control unit repeats and / or at least one of the time intervals in the operating state at regular, predefined time intervals and in particular in the same sequence executes.
  • a power output by the induction heating elements in the third time interval could be zero.
  • the control unit could in particular deactivate the induction heating elements in the third time interval.
  • a sum of a duration of the first time interval and / or a duration of the second time interval and / or a duration of the third time interval results in a period duration. This can in particular over a longer period of time a uniform and / or advantageous heat distribution can be made possible, whereby in particular optimal cooking results can be achieved.
  • At least one of the time intervals in particular the first time interval and / or the second time interval and / or the third time interval, be an integral multiple of half a period of a mains voltage.
  • at least one of the time intervals could have a value of 2 times, in particular 3 times, advantageously 4 times, particularly advantageously 6 times and preferably 8 times half the period of the mains voltage.
  • at least one of the time intervals, in particular the first time interval and / or the second time interval and / or the third time interval could be a fraction of half a period duration of a mains voltage, the fraction could be determined, for example, by a number of different time intervals.
  • a high level of efficiency and / or a high level of operator convenience can be achieved as a result.
  • the control unit could change the phase shift in a range of the mains voltage, which in particular could be spaced apart in time from a zero crossing of the mains voltage.
  • the control unit could change a phase shift, in particular at least one time interval, and determine this interval in particular by means of a quotient of half the period of the mains voltage and an integer number n greater than zero.
  • the control unit preferably changes the phase shift in a range of a zero crossing of the mains voltage.
  • the control unit could change a phase shift in particular at a time interval of n times half the period of the mains voltage, where n could in particular be an integer number greater than zero.
  • a "range" of a zero crossing of the mains voltage is to be understood in particular as a time segment which includes the zero crossing of the mains voltage and which in particular has at least one limit, in particular a beginning and / or an end, which in time by a maximum of 25%, in particular around a maximum of 15%, advantageously a maximum of 10%, particularly advantageous a maximum of 5%, preferably a maximum of 5% and particularly preferably a maximum of 2% of a duration of half the period of the mains voltage from the zero crossing of the mains voltage.
  • flicker can be avoided and / or minimized, as a result of which a high level of operating convenience can be achieved in particular.
  • phase shifts that are "complementary" to one another should be understood to mean, in particular, phase shifts which can be determined from the first phase shift if a first phase shift of the phase shifts is known and / or which the control unit determines from the first phase shift in the operating state if a first phase shift of the phase shifts is known.
  • uneven heat distributions that occur in the first time interval with a first phase shift can be averaged out by heat distributions that occur in the second time interval with a second phase shift, whereby a uniform heat distribution can be achieved averaged over the time intervals.
  • the control unit could operate the induction heating elements in the first time interval with a first phase shift and in the second time interval with a second phase shift, which the control unit in the operating state in particular by adding a constant phase angle, such as 30 ° and / or 45 ° ° and / or 90 ° and / or 180 °, could determine the first phase shift.
  • a constant phase angle such as 30 ° and / or 45 ° ° and / or 90 ° and / or 180 °
  • a possibly faulty contacting of the induction heating elements could in particular be averaged out.
  • simple and / or rapid contacting of the induction heating elements could thereby be made possible, as a result of which, in particular, low costs can be achieved.
  • the control unit preferably determines the second phase shift from a difference of 360 ° and / or 0 ° and the first phase shift.
  • a symmetrical and / or optimized heating of cookware and / or a particularly advantageous and / or uniform heat distribution can be made possible.
  • a heat distribution between at least two induction heating elements, which are arranged in particular adjacent to one another and in particular form a common heating zone can be optimized and / or selected as desired.
  • a power of a respective heating frequency unit which is assigned to a respective one of the induction heating elements, can be compensated averaged over the time intervals, whereby in particular all heating frequency units can provide the same power and / or be used equally, whereby in particular wear is distributed at least substantially evenly and / or premature failure of one of the heating frequency units can be avoided.
  • a good compromise between optimal heat distribution and balanced utilization of the heating frequency units can be made possible, in particular while maintaining the greatest possible flexibility.
  • control unit could operate a first induction heating element of the induction heating elements at a first frequency and a second induction heating element of the induction heating elements that is different from the first induction heating element at a second frequency, which in particular could be an integral multiple of the first frequency.
  • the integer multiple could assume a value of at least two and, in particular, unequal to zero and / or unequal to one.
  • the control unit preferably operates the induction heating elements with at least substantially and in particular with exactly the same frequency.
  • At least essentially the same frequency should be understood to mean in particular at least two frequencies at which a quotient of a smaller frequency of the frequencies and a larger frequency of the frequencies has a value of at least 0.9, in particular of at least 0.95, advantageously of at least 0.97, particularly advantageously at least 0.98 and preferably at least 0.99. Intermodulation hum, in particular, can thereby be avoided.
  • the induction heating elements form a common heating zone in the operating state and, in particular, heat the same cookware.
  • the induction heating elements could be arranged concentrically to one another when viewed perpendicularly on a main plane of extension at least one of the induction heating elements.
  • a first induction heating element of the induction heating elements could be surrounded concentrically by a second induction heating element of the induction heating elements when viewed perpendicularly on a main plane of extent of at least one of the heating elements.
  • the induction heating elements could, when viewed perpendicularly on a main plane of extent, at least one of the induction heating elements, in particular be arranged directly adjacent to one another, with in particular a single cookware being arranged above the induction heating elements in an installed position and, when viewed perpendicularly on a main plane of extent, at least one of the Induction heating elements could in particular extend over the induction heating elements.
  • the induction heating elements could in particular be part of a matrix of induction heating elements, which in particular by at least three, in particular by at least four, advantageously by at least five, particularly advantageously by at least eight, preferably by at least twelve and particularly preferably could be formed by a plurality of induction heating elements.
  • the induction heating elements could in particular be arranged in a row, which in particular could be part of the matrix or in the form of an independent row.
  • the cooking utensil which the induction heating elements heat in particular in the operating state extends, in particular, at least for the most part over an extension and / or over a surface extension of the induction heating elements.
  • “At least to a large extent” should be understood to mean in particular a proportion, in particular a mass proportion and / or volume proportion, of at least 70%, in particular at least 80%, advantageously at least 90% and preferably at least 95%. In this way, in particular, symmetrical heating of heating zones can be made possible, which are formed by at least two induction heating elements, whereby in particular even large cookware can be optimally heated.
  • the invention is further based on a method for operating an induction cooking appliance device according to claim 10.
  • a particularly optimal heating of cookware and / or a particularly advantageous heat distribution can be achieved in particular if the induction heating elements are operated in the operating state in at least one second time interval different from the first time interval with a second phase shift different from the first phase shift.
  • the induction cooking appliance device should not be restricted to the application and embodiment described above.
  • the induction cooking appliance device can have a number of individual elements, components and units that differs from a number of individual elements, components and units mentioned herein in order to fulfill a mode of operation described herein.
  • Fig. 1 shows an induction cooking appliance 28 with an induction cooking appliance device 10.
  • the induction cooking appliance 28 could, for example, be designed as an induction baking oven and / or as an induction cooker and / or as an induction cooking oven.
  • the induction cooking appliance 28 is designed as an induction hob.
  • the induction cooking appliance device 10 is designed as an induction hob device in the present exemplary embodiment.
  • the induction cooking appliance device 10 has a cooking appliance plate 30.
  • the cooking device plate 30 forms part of an external device housing, in particular of the induction cooking device 28.
  • the cooking appliance plate 30 forms a part of the external appliance housing that faces an operator.
  • the cooking appliance plate 30 could, for example, be designed as a front plate and / or cover plate of the appliance outer housing, in particular an induction cooking appliance 28 designed as an induction oven and / or as an induction cooker and / or as an induction oven.
  • the cooking appliance plate 30 is designed as a hob plate.
  • the cooking appliance plate 30 is provided for setting up cooking utensils 34 (cf. Fig. 1 ).
  • the induction cooking appliance device 10 has a user interface 32 for inputting and / or selecting operating parameters (cf. Fig. 1 ), for example a heating power and / or a heating power density and / or a heating zone 26.
  • the operator interface 32 is provided for outputting a value of an operating parameter to an operator.
  • the operator interface 32 could visually and / or acoustically output the value of the operating parameter to an operator.
  • the induction cooking appliance device 10 has a control unit 14.
  • the control unit 14 is provided to carry out actions and / or to change settings as a function of the operating parameters entered by means of the operator interface 32.
  • the induction cooking appliance device 10 has six induction heating elements 12 in the present exemplary embodiment. In the figures, only one object of multiple existing objects is provided with a reference symbol. In each case two of the induction heating elements 12 form a common heating zone 26 in one operating state. In the following, only the two induction heating elements 12 are described, which form a common heating zone 26 in the operating state.
  • the induction heating elements 12, which are arranged adjacent to one another, are described below by way of example. A description of induction heating elements 12, which are arranged in a different form relative to one another and form a common heating zone 26 for heating, in particular, a single cookware 34, is made analogously.
  • the induction heating elements 12 are provided to heat cooking utensils 34 placed on the cooking appliance plate 30 above the induction heating elements 12. In the operating state, the induction heating elements 12 supply energy to the cookware 34 that has been set up. In the operating state, the control unit 14 regulates an energy supply to the induction heating elements 12. In an installation position, the induction heating elements 12 are arranged below the cooking appliance plate 30.
  • the induction cooking appliance device 10 has a supply unit 36 (cf. Fig. 2 ), which supplies the induction heating elements 12 with energy in the operating state, specifically as a function of activation by the control unit 14.
  • the supply unit 36 has a heating frequency unit 38 for each induction heating element 12.
  • Each heating frequency unit 38 is assigned to one of the induction heating elements 12 and, in the operating state, provides, in particular, a particularly high-frequency alternating current to supply the induction heating element 12.
  • Each heating frequency unit 38 has an inverter.
  • the induction heating elements 12 are each arranged in a half-bridge circuit, as is widely known in the prior art. A circuit of the induction heating elements 12 is therefore not described further below.
  • the control unit 14 operates the induction heating elements 12 in a first time interval 16 with a first phase shift 40 (cf. Fig. 3 and 4th ).
  • the first time interval 16 is an integral multiple of half a period 46 of a mains voltage 24.
  • the first time interval 16 is half a period 46 of the mains voltage 24.
  • the control unit 14 operates the induction heating elements 12 in a second time interval 18 different from the first time interval 16 with a second phase shift 42 different from the first phase shift 40.
  • the second time interval 18 is an integral multiple of half a period 46 of a mains voltage 24 In the present exemplary embodiment, the second time interval 18 is half a period 46 of the mains voltage 24.
  • the second time interval 18 directly follows the first time interval 16.
  • the control unit 14 repeats the first time interval 16 and the second time interval 18 periodically.
  • a transition between the time intervals 16, 18 is in a region of a zero crossing 22 of the mains voltage 24.
  • the control unit 14 changes the phase shift 40, 42 in the region of a zero crossing 22 of the mains voltage 24.
  • the control unit 14 In the operating state, the control unit 14 operates the induction heating elements 12 with essentially the same frequency (cf. Fig. 3 ). In the operating state, the control unit 14 operates the induction heating elements 12 in the time intervals 16, 18 with two mutually complementary phase shifts 40, 42. In the operating state, the control unit 14 determines the second phase shift 42 from a difference of 360 ° and the first phase shift 40.
  • the control unit 14 operates the induction heating elements 12, for example in the first time interval 16 with a first phase shift 40 of substantially 90 °.
  • the control unit 14 determines the second phase shift 42 from a difference of 360 ° and the first phase shift 40.
  • the control unit 14 operates the induction heating elements 12 in the second time interval 18 with a second phase shift 42 of essentially 270 °, which corresponds to a second phase shift 42 of essentially -90 °.
  • the induction heating elements 12 are operated in the first time interval 16 with a first phase shift 40 in the operating state. In the operating state, the induction heating elements 12 are operated in a second time interval 18 different from the first time interval 16 with a second phase shift 42 different from the first phase shift 40.
  • the control unit 14 operates the induction heating elements 12 in a first time interval 16 with a first phase shift 40 and in a second time interval 18 different from the first time interval 16 with a second phase shift 42 different from the first phase shift 40
  • the third time interval 20 is an integer multiple of half a period 46 of a mains voltage 24.
  • Each of the time intervals 16, 18, 20 is an integer multiple of half a period 46 of a mains voltage 24.
  • each of the time intervals 16, 18, 20 is half a period 46 of the mains voltage 24.
  • the second time interval 18 directly follows the first time interval 16.
  • the third time interval 20 directly follows the second time interval 18.
  • the control unit 14 repeats the first time interval 16 and the second time interval 18 and the third time interval 20 periodically.
  • the control unit 14 operates the induction heating elements 12 in a first time interval 16 with a first phase shift 40 and in a second time interval 18 different from the first time interval 16 with a second phase shift 42 different from the first phase shift 40
  • the third time interval 48 is an integer multiple of half a period 46 of a mains voltage 24.
  • Each of the time intervals 16, 18, 48 is an integer multiple of half a period 46 of a mains voltage 24.
  • each of the time intervals 16, 18, 48 is half a period 46 of the mains voltage 24.
  • the second time interval 18 directly follows the first time interval 16.
  • the third time interval 48 directly follows the second time interval 18. In the operating state, the control unit 14 repeats the first time interval 16 and the second time interval 18 and the third time interval 48 periodically.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (10)

  1. Dispositif d'appareil de cuisson à induction, notamment dispositif de table de cuisson à induction, comprenant au moins deux éléments chauffants à induction (12) et comprenant au moins une unité de commande (14) laquelle, dans au moins un état de fonctionnement, fait fonctionner les éléments chauffants à induction (12) avec un décalage de phase (40) pendant au moins un premier intervalle de temps (16), caractérisé en ce que l'unité de commande (14), dans l'état de fonctionnement, fait fonctionner les éléments chauffants à induction (12) avec un deuxième décalage de phase (42) différent du premier décalage de phase (40) pendant au moins un deuxième intervalle de temps (18) différent du premier intervalle de temps (16), et répète périodiquement le premier intervalle de temps (16) et le deuxième intervalle de temps (18).
  2. Dispositif d'appareil de cuisson à induction selon la revendication 1, caractérisé en ce que l'unité de commande (14), dans l'état de fonctionnement, fait fonctionner les éléments chauffants à induction (12) avec un troisième décalage de phase (44) différent du premier décalage de phase (40) et du deuxième décalage de phase (42) pendant au moins un troisième intervalle de temps (20) différent du premier intervalle de temps (16) et du deuxième intervalle de temps (18).
  3. Dispositif d'appareil de cuisson à induction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un des intervalles de temps (16, 18, 20) est un multiple entier d'une demi-durée périodique (46) d'une tension de réseau (24).
  4. Dispositif d'appareil de cuisson à induction selon la revendication 3, caractérisé en ce que l'unité de commande (14), dans l'état de fonctionnement, modifie le décalage de phase (40, 42, 44) dans une plage d'un passage par zéro (22) de la tension de réseau (24).
  5. Dispositif d'appareil de cuisson à induction selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (14), dans l'état de fonctionnement, fait fonctionner les éléments chauffants à induction (12) avec au moins deux décalages de phase (40, 42, 44) complémentaires les uns aux autres pendant les intervalles de temps (16, 18, 20).
  6. Dispositif d'appareil de cuisson à induction selon la revendication 5, caractérisé en ce que l'unité de commande (14), dans l'état de fonctionnement, détermine le deuxième décalage de phase (42) à partir d'une différence entre 360° et le premier décalage de phase (40).
  7. Dispositif d'appareil de cuisson à induction selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (14), dans l'état de fonctionnement, fait fonctionner les éléments chauffants à induction (12) avec au moins essentiellement une même fréquence.
  8. Dispositif d'appareil de cuisson à induction selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments chauffants à induction (12), dans l'état de fonctionnement, forment une zone de chauffage commune (26).
  9. Appareil de cuisson à induction, notamment table de cuisson à induction, comprenant au moins un dispositif d'appareil de cuisson à induction (10) selon l'une quelconque des revendications précédentes.
  10. Procédé pour un fonctionnement d'un dispositif d'appareil de cuisson à induction (10), notamment selon l'une quelconque des revendications 1 à 8, comprenant au moins deux éléments chauffants à induction (12) lesquels, dans au moins un état de fonctionnement, fonctionnement avec un premier décalage de phase (40) pendant au moins un premier intervalle de temps (16), caractérisé en ce que les éléments chauffants à induction (12), dans l'état de fonctionnement, fonctionnement avec un deuxième décalage de phase (42) différent du premier décalage de phase (40) pendant au moins un deuxième intervalle de temps (18) différent du premier intervalle de temps (16), et en ce que le premier intervalle de temps (16) et le deuxième intervalle de temps (18) sont répétés périodiquement.
EP18200586.8A 2017-11-08 2018-10-16 Dispositif formant appareil de cuisson inductif Active EP3484242B1 (fr)

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ES201731304A ES2716422A1 (es) 2017-11-08 2017-11-08 Dispositivo de aparato de cocción por inducción.

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EP3484242B1 true EP3484242B1 (fr) 2021-07-21

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WO2021115871A1 (fr) * 2019-12-13 2021-06-17 BSH Hausgeräte GmbH Dispositif à induction

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ES2716422A1 (es) 2019-06-12
ES2886592T3 (es) 2021-12-20

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