EP2670213A2 - Dispositif de chauffage à induction - Google Patents

Dispositif de chauffage à induction Download PDF

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Publication number
EP2670213A2
EP2670213A2 EP13168774.1A EP13168774A EP2670213A2 EP 2670213 A2 EP2670213 A2 EP 2670213A2 EP 13168774 A EP13168774 A EP 13168774A EP 2670213 A2 EP2670213 A2 EP 2670213A2
Authority
EP
European Patent Office
Prior art keywords
induction heating
heating
groups
induction
supply
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
EP13168774.1A
Other languages
German (de)
English (en)
Other versions
EP2670213B1 (fr
EP2670213A3 (fr
Inventor
Manuel Almolda Fandos
Daniel Anton Falcon
Jesús CEAMANOS GAYA
David Ortiz Sainz
Carmelo Pina Gadea
Diego Puyal Puente
María Valencia Betran
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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL13168774T priority Critical patent/PL2670213T3/pl
Publication of EP2670213A2 publication Critical patent/EP2670213A2/fr
Publication of EP2670213A3 publication Critical patent/EP2670213A3/fr
Application granted granted Critical
Publication of EP2670213B1 publication Critical patent/EP2670213B1/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
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate

Definitions

  • the invention is based on an induction heating device according to the preamble of claim 1.
  • the object of the invention is in particular to provide a generic device with improved properties in terms of space savings at acceptable performance.
  • the object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
  • the invention is based on an induction heating device, in particular a domestic appliance induction heating device, advantageously an induction hob device, having at least five independent induction heating groups and an electronic unit which is provided to supply the induction heating groups.
  • the electronics unit be provided to supply the induction heating groups of a maximum of two different energy sources.
  • induction heating group is to be understood, in particular, as a group of at least one induction heating element to which a heating level, in particular a heating power, can be assigned by an operator.
  • induction heating elements of an induction heating group are operated in parallel, in particular connected in parallel.
  • adjacent induction heating elements of an induction heating group have a maximum spacing of 10 cm, in particular not more than 5 cm, advantageously not more than 2 cm, and / or are arranged encompassing one another, in particular concentrically.
  • the induction heating device has at least one induction heating element, which is intended to be flexible, in particular as a function of at least one sensor parameter, in particular a position, shape and / or size of a heating means, in particular a Gargeschirrs to be assigned by a control and / or operating unit different induction heating.
  • "Independent" heating groups are to be understood in particular heating groups, which are intended to be assigned by an operator on the control and / or operating unit independent of each other Schutschstryn.
  • an “induction heating element” is to be understood in particular as a heating element which is provided in at least one operating state of high-frequency alternating current, in particular with a frequency between 1 kHz and 150 kHz, advantageously with a frequency between 20 kHz and 100 kHz, and / or with a current strength of at least 0.5 A, in particular at least 1A, advantageously at least 2 A, particularly advantageously at least 5 A, preferably at least 10 A, to be traversed.
  • the induction heating element has at least one induction heating conductor, which is designed in particular as a stranded conductor.
  • the induction heating conductor is designed as an inductance, in particular as a flat coil, advantageously with a round shape, alternatively with a rectangular or oval shape.
  • the induction heating is intended to convert in at least one operating state, a power of at least 100 W, preferably at least 1000 W, preferably at least 1000 W, preferably at least 2000 W, in a magnetic alternating field, which is provided in a, preferably metallic and / or ferromagnetic heating means, in particular an oven heating element and / or a cooking utensil, advantageously a cooking utensil base, to be converted into heat by induction and / or remagnetization effects.
  • the induction heating device is designed as a hob device and has at least one hob plate, under which the induction heating elements are arranged, which form the five induction heating.
  • the induction heating groups are intended to heat independent cooking zones.
  • a smallest imaginary cuboid, which completely surrounds the hob plate has a maximum edge length of at most 89 cm, in particular a maximum of 85 cm, advantageously of not more than 83 cm, preferably of not more than 81 cm.
  • a "control and / or operating unit” is to be understood in particular as a unit which is provided to control and / or regulate functions of the induction heating device, to process operator inputs and / or to output information to the operator.
  • control and / or operating unit has at least one arithmetic unit and advantageously at least one memory unit in which preferably at least one operating program is stored which is intended to be executed by the arithmetic unit.
  • control and / or operating unit has at least one user interface which has at least one input element, in particular an advantageously touch-sensitive operating key, and at least one output element, in particular a screen, alternatively a segment display.
  • the control and / or operating unit is provided to allocate and regulate the independent heating zones by means of power levels entered by the operator.
  • the control and / or operating unit is part of the electronic unit.
  • the electronic unit has at least one, advantageously at least two, preferably at least three inverters, which are provided to generate high-frequency alternating current, which is intended to supply the induction heating groups or their induction heating elements.
  • An "energy source” is to be understood as meaning, in particular, a single-phase alternating current source which is intended to supply current having a frequency between 1 Hz and 200 Hz, in particular between 10 Hz and 100 Hz, advantageously between 40 Hz and 70 Hz, a current intensity of up to 5 A, advantageously up to 10 A, preferably up to 16 A, and a voltage between 50 V and 500 V, in particular between 100 V and 300 V, advantageously between 200 V and 250 V.
  • the energy source is formed by a phase of a multi-phase, in particular three-phase, house connection.
  • DC voltage sources are conceivable.
  • energy sources differ in a provided voltage, and / or a provided frequency by at least 10%.
  • different energy sources differ at least in a phase position of an AC voltage provided by at least 20 °, advantageously by at least 60 °, preferably by at least 100 °, and in particular by a maximum of 130 °.
  • the electronic unit has at least two power converters, which in particular have at least one rectifier, a transformer and / or a switched-mode power supply, which are intended to convert in each case powers of different energy sources.
  • the electronic unit has at least two connection points for one of the energy sources.
  • a component and / or cost savings can be achieved.
  • a reduced size can be achieved since it is possible to dispense with a power converter for a third energy source.
  • sufficient power can be obtained from two sources of energy to operate five independent induction heating groups.
  • the electronics unit is provided to supply at least two of the induction heating groups from different ones of the energy sources in at least one operating mode.
  • an improved energy distribution can be achieved.
  • a heating frequency module should in particular be understood to mean a part of the electronic unit which has at least one heating frequency unit, in particular at least one inverter, advantageously an inverter intended for operation in half or full bridge circuit, which is intended to supply an alternating current with a frequency between 1 kHz and 200 kHz, advantageously between 10 kHz and 150 kHz, preferably between 20 kHz and 100 kHz, which is preferably intended to be supplied to at least one induction heating element.
  • the heating frequency module has at least two, preferably exactly two, heating frequency units.
  • a heating frequency module has at least one power converter, which is intended to receive energy from one of the energy sources and to supply it to the heating frequency unit.
  • the heating frequency module has at least one resonance unit, which in particular has at least one resonance capacitance, which is provided to form a resonant circuit with at least one of the induction heating elements.
  • Each of the heating frequency modules advantageously has at least one separate circuit board on which at least the at least one heating frequency unit and in particular at least one of the power converters are arranged.
  • the Wienfrequenzmodule have at least one common board on which at least one Kirschner both Walkerfrequenzmodule is arranged.
  • a "part" of the induction heating groups should in particular be understood as meaning at least one of the induction heating groups, which should advantageously be at least two of the induction heating groups.
  • the part is to be understood as meaning an amount of the induction heating groups whose number deviates at most 1, in particular at most 0.5, from one half of the number of induction heating groups.
  • the Wienfrequenzmodule are provided to different Supplying quantities of the induction heating groups, wherein in particular each induction heating group, which is supplied in at least one operating state of one of the Schwarzfrequenzmodule, is supplied in any operating condition of the other Schufrequenzmodul.
  • an improved variability can be achieved, wherein, in particular, different heating frequency modules, which are designed in particular for different numbers of induction heating groups to be supplied, can be combined with one another.
  • the first heating frequency module is provided to supply at least three of the induction heating groups.
  • the first heating frequency module has at least three heating frequency units.
  • the control and / or operating unit is provided, in an operating mode in which for a number of three induction heating simultaneously heating power is required, which is smaller than a number of Schufrequenzönen the first Schufrequenzmoduls to assign each of the active induction heating a separate heating frequency unit.
  • the first heating frequency module is provided for operating at least the three induction heating groups in a multiplex mode in at least one operating mode.
  • the first heating frequency module has at least two, in particular exactly two, alternatively at most one, heating frequency units.
  • the first heating frequency module has at least one switching unit which is formed in particular by at least one, advantageously at least four, preferably at least six, switching elements and is intended to connect different configurations of the at least three induction heating groups with the Schufrequenzüen in different switching states.
  • the control and / or operating unit is provided to set switching states of the switching unit.
  • a multiplex mode is to be understood, in particular, as an operating mode in which a first number of induction heating groups, for which a non-zero heating power is requested, are supplied with heating frequency units with a second number, which is smaller than the first number, wherein the control and heating units / or operating unit is provided to connect the different induction heating in each case corresponding to the requested heating power for different lengths of at least one of the heating frequency units.
  • a multiplex mode is conceivable in which at least two of the heating-frequency units are connected in parallel, at least temporarily. to operate one of the induction heating groups in a boost mode.
  • the control and / or operating unit is provided, the induction heating groups cyclically, advantageously periodically, in particular with a period of a maximum of 2 minutes, in particular a maximum of 1 min, preferably a maximum of 30 s, more preferably a maximum of 10 s, preferably a maximum of 2 s, with to connect the heating frequency units.
  • a time interval between two switching state changes, in which the control and / or operating unit changes between two switching states of the switching unit at least 20 ms, advantageously at least 50 ms, preferably at least 100 ms.
  • a flexible heating zone allocation can be achieved.
  • a component and / or cost savings can be achieved since additional heating frequency units can be dispensed with.
  • local markets may be taken into account, wherein a number of heating frequency units may be made dependent on a statistical quantity indicating how many of the induction heating groups are being used simultaneously by a typical operator.
  • the second heating frequency module has at least two heating frequency units.
  • the second heating frequency module is provided to supply at least the at least two induction heating groups in at least one operating mode and to operate at least one, in particular exactly one, of the at least two induction heating groups in a boost mode in at least one further operating mode.
  • the second heating frequency module has at least one switching unit, which is formed in particular by at least one relay and which is provided to switch between the operating modes.
  • a boost mode is to be understood in particular as an operating mode in which an induction heating group is supplied by at least two heating frequency units connected in parallel and / or the induction heating group is supplied with a heating power which is at least 110%, advantageously at least 130%, preferably at least 150%, of a nominal one Heating power of the induction heating is.
  • the control and / or operating unit is provided to switch off a boost mode at the latest after a maximum time, which is in particular a maximum of 15 minutes, advantageously a maximum of 10 minutes, in order to avoid overheating.
  • the nominal power of an induction heating group describes a heating power with which Induction heating continuously, preferably without damage, in particular below a threshold temperature, in particular below 500 ° C, advantageously below 300 ° C, preferably below 200 ° C, can be operated.
  • the second Induzzyscreammodul is provided to operate in strongly divergent heating outputs of the at least two induction heating, these in a multiplex mode.
  • a high heating power and / or a flexible heat power allocation can be achieved.
  • FIG. 1 shows an induction hob designed as cooking appliance 10 with an induction heating device designed as an induction heating device 12.
  • the induction heating device 12 has five independent induction heating 20, 22, 24, 26, 28 on.
  • the induction heating groups 20, 22, 24, 26, 28 are each formed by an induction heating element 21, 23, 25, 27, 29.
  • the induction heating groups 20, 22, 24, 26, 28 are arranged on an underside of a hob plate 14.
  • a first of the induction heating groups 20 has a diameter of 15 cm.
  • a second of the induction heating groups 22 has a diameter of 18 cm.
  • a third of the induction heating groups 24 has a diameter of 25 cm.
  • a fourth of the induction heating groups 26 has a diameter of 15 cm.
  • a fifth of the induction heating groups 28 has a diameter of 21 cm.
  • the third, so the largest of the induction heating 24 is disposed between the other four induction heating 20, 22, 26, 28, wherein the first and second induction heating 20, 22 left of the third induction heating 24 and the fourth and fifth induction heating 26, 28 right of the third induction heating 24 are arranged.
  • the cooktop panel 14 has a width of 80 cm and a depth of 51 cm.
  • the induction heating device 12 has an electronics unit 16 which is provided to supply the induction heating groups 20, 22, 24, 26, 28 ( FIG. 2 . FIG. 3 ).
  • the electronics unit 16 is arranged in a housing 18 which is open on one side and which is intended to be closed on the open side with the hob plate 14.
  • the housing 18 has holding elements which are provided to hold the components of the electronics unit 16.
  • the electronics unit 16 is provided to supply the induction heating groups 20, 22, 24, 26, 28 of two different energy sources 30, 40 formed as phases of a multi-phase house connection.
  • the electronics unit 16 is provided, in operating modes in which at connection points 31, 41 of the electronics unit 16 different energy sources 30, 40 are connected to supply the first, second and third induction heating 20, 22, 24 from a different energy source 30, as the fourth and fifth induction heating groups 26, 28.
  • the electronics unit 16 has two heating frequency modules 32, 42, which are intended to receive energy from different ones of the energy sources 30, 40, and to supply a part of the induction heating groups 20, 22, 24, 26, 28 ( FIG. 3 wherein the induction heating groups are symbolized by circuit diagrams for inductors).
  • a first one of the heating frequency modules 32 is intended to receive energy from a first of the energy sources 30 and thus to supply the first, second and third induction heating groups 20, 22, 24 when a heating power is requested for them.
  • the first heating frequency module 32 has two Schufrequenzillon, each of two series-connected, formed as IGBTs, switching elements are formed, wherein between the switching elements, a high-frequency alternating current can be tapped.
  • the first heating frequency module 32 has a switching unit which is provided to connect any two of the three induction heating groups 20, 22, 24 simultaneously with one of the heating frequency units. Furthermore, the switching unit is provided to connect any of the three induction heating groups 20, 22, 24 simultaneously with both heating frequency units in order to operate them in a boost mode. The first heating frequency module 32 is provided to operate the three induction heating groups 20, 24, 26 in a multiplex mode in an operating mode in which non-zero heating powers are required for the three induction heating groups 20, 22, 24.
  • a second of the heating frequency modules 42 is intended to receive energy from a second of the energy sources 40 and thus to supply the fourth and fifth induction heating groups 26, 28.
  • the second heating frequency module 42 has two heating frequency units.
  • the second heating frequency module 42 is provided to simultaneously supply the two induction heating groups 26, 28 in one operating mode and to operate the fifth induction heating group 28 in a boost mode in a further operating mode.
  • the second heating frequency module 42 has a switching unit with a single switching element, which is intended to connect a first of the heating frequency units to either the fifth or the fourth induction heating group 26, 28, wherein the fifth induction heating group 28 is continuously connected to a second one of the heating frequency units ,
  • the electronic unit 16 has a control and / or operating unit 15, which is intended to accept operator inputs relating to heating power requirements for the induction heating 20, 22, 24, 26, 28 and operating modes of Electronic unit 16 and the Schufrequenzmodule 32, 42 to control.
  • the control and / or operating unit 15 is connected by means of a holder 17, which is arranged in a front region, with the housing 18 and arranged below the hob plate 14.
  • the Schufrequenzmodule 32, 42 each have their own board 34, 44, on each of which the heating frequency units are arranged.
  • the first Schufrequenzmodul 32 has a heat sink 36, against which the switching elements of the heating frequency units of the first Schufrequenzmoduls 32, to deliver heat loss.
  • the second Schufrequenzmodul 42 has a heat sink 46 to which the switching elements of the heating frequency units of the second Schufrequenzmoduls 42 abut to give off heat loss.
  • the heat sinks 36, 46 of the two differently shaped heating frequency modules 32, 42 are arranged next to one another and together with formations of the housing 18 form a cooling channel.
  • the housing 18 has an exhaust opening 19.
  • the first heating frequency module 32 has a further circuit board 38.
  • the further board 38 has filter elements, ie inductors and / or capacitors, and is intended to intercept voltage and current fluctuations that occur during switching operations of the switching unit, for example in multiplex mode, before they feed back into the power grid and cause, for example, flicker.
  • filter elements ie inductors and / or capacitors
  • the own board 34 and the further board 38 are integrally formed.
  • the own board 34 of the first heating frequency module 32, including the heat sink 36 has a width of 24.5 cm and a depth of 28 cm.
  • the own board 44 of the second heating frequency module 42, including the heat sink 46 has a width of 21 cm and a depth of 36.5 cm.
  • the heat sinks 36, 46 each have a depth of 15.5 cm and are 4.5 cm in width across the respective own board 34, 44 via.
  • the own boards 34, 44 and the other board 38 are arranged within a rectangle with a width of 52 cm and a depth of 37 cm, so that the electronics unit 16 also for cooktop panels with a size smaller than 80 cm, for example 60 cm, suitable is.
  • FIGS. 4 to 9 Six further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, with respect to constant components, Features and functions on the description of the other embodiments, in particular the FIGS. 1 . 2 and 3 , can be referenced. To distinguish the embodiments, the letters a to f to the reference numerals of the embodiments in the FIGS. 4 to 9 added. With regard to identically designated components, in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the other embodiments, in particular the FIGS. 1 . 2 and 3 , to get expelled.
  • FIG. 4 shows a designed as an induction hob cooking device 10a with an induction hob as trained induction heating device 12a.
  • the induction heater 12a has five independent induction heating groups 20a, 22a, 24a, 26a, 28a.
  • the induction heater 12a has an electronic unit analog FIG. 2 to supply the induction heating groups from two different energy sources.
  • a first, second and third of the induction heating groups 20a, 22a, 24a each have a single induction heating element 21a, 23a, 25a.
  • the first, second and third induction heating groups 20a, 22a, 24a are designed to be supplied by a first heating frequency module which is intended to receive energy from a first energy source.
  • the first heating frequency module is provided to operate the three induction heating groups 20a, 22a, 24a in a mode of operation in which a heating power is requested for all three induction heating groups 20a, 22a, 24a in a multiplex mode.
  • the fourth and fifth induction heating groups 26a, 28a are formed by a variable cooking area 50a.
  • the variable cooking area 50a has four oval induction heating elements 27a, 27a ', 29a, 29a'.
  • the variable cooking area 50a is disposed in a right portion of a cooking plate 14a of the induction heater 12a.
  • the four induction heating elements 27a, 27a ', 29a, 29a' of the variable cooking area 50a each have a width of 20.5 cm and a depth of 9.5 cm.
  • the induction heating elements 27a, 27a ', 29a, 29a' of the variable cooking area 50a are arranged alongside one another.
  • the electronics unit has a second heating frequency module which is provided to supply the fourth and fifth induction heating groups 26a, 28a.
  • the second Schufrequenzmodul has next to its own board on which the Schufrequenzüen are arranged, another board 48 a (dashed lines indicated in FIG.
  • FIG. 5 shows an alternative variant of an electronics unit 16b for supplying five independent induction heating groups 20b, 22b, 24b, 26b, 28b of an induction heater 12b.
  • the electronics unit 16b has a first heating frequency module 32b, which is provided to supply four of the induction heating groups 20b, 22b, 26b, 28b from a first energy source 30b.
  • the first heating frequency module 32b has two heating frequency units, which are provided, the induction heating groups 20b, 22b, 26b, 28b in an operating mode in which is required for more than two of the induction heating 20b, 22b, 26b, 28b, a heating power greater than zero, to operate them in a multiplex mode.
  • the electronics unit 16b has a second heating frequency module 42b, which is intended to receive energy from a second energy source 40b and to supply the single induction heating group 24b.
  • the second heating frequency module 42b has two heating frequency units which are permanently connected in parallel to supply a large induction heating group 24b. In comparison, a better energy distribution is achieved in the first proposed variant.
  • FIG. 6 shows a variant of an electronics unit 16c for supplying six independent induction heating groups 20c, 22c, 24c, 26c, 28c, 52c of an induction heater 12c.
  • the electronic unit 16c has a first heating frequency module 32c, which is provided to supply three of the induction heating groups 20c, 22c, 24c from a first power source 30c.
  • the first heating frequency module 32c has two heating frequency units, which are provided, the induction heating groups 20c, 22c, 24c in an operating mode in which is required for more than two of the induction heating 20c, 22c, 24c, a heating power greater than zero, this in a multiplex mode to operate.
  • the electronics unit 16c has a second heating frequency module 42c, which is provided to supply three of the induction heating groups 26c, 28c, 52c from a second energy source 40c.
  • the second heating frequency module 42c has two heating frequency units, which are provided, the induction heating 26c, 28c, 52c in an operating mode in which is required for more than two of the induction heating 26c, 28c, 52c, a heating power greater than zero, this in a multiplex mode to operate.
  • FIG. 7 shows an alternative variant of an electronics unit 16d for supplying six independent induction heating 20d, 22d, 24d, 26d, 28d, 52d of an induction heater 12d.
  • the electronics unit 16d has a first heating frequency module 32d, which is provided to supply four of the induction heating groups 20d, 22d, 24d, 26d from a first energy source 30d.
  • the first heating frequency module 32d has two heating frequency units, which are provided, the induction heating groups 20d, 22d, 24d, 26d in an operating mode in which is required for more than two of the induction heating 20d, 22d, 24d, 26d, a heating power greater than zero, to operate them in a multiplex mode.
  • the electronics unit 16d has a second heating frequency module 42d, which is provided to supply two of the induction heating groups 28d, 52d from a second energy source 40d.
  • the second heating frequency module 42d has two heating frequency units, which are provided to simultaneously supply the two induction heating groups 28d, 52d in one operating mode and to operate the induction heating group 52d in a boost mode in a further operating mode.
  • FIG. 8 shows a variant of an electronics unit 16e for supplying seven independent induction heating groups 20e, 22e, 24e, 26e, 28e, 52e, 54e of an induction heater 12e.
  • the electronics unit 16e has a first heating frequency module 32e, which is provided to supply four of the induction heating groups 20e, 22e, 24e, 26e from a first energy source 30e.
  • the first heating frequency module 32e has two heating frequency units which are provided for requesting the induction heating groups 20e, 22e, 24e, 26e in an operating mode in which a heating power greater than zero is required for more than two of the induction heating groups 20e, 22e, 24e, 26e. to operate them in a multiplex mode.
  • the electronics unit 16e has a second heating frequency module 42e, which is provided to supply three of the induction heating groups 28e, 52e, 54e from a second energy source 40e.
  • the second heating frequency module 42e has two heating frequency units which are provided to heat the induction heating groups 28e, 52e, 54e in an operating mode in which a heating power greater than zero is requested for more than two of the induction heating groups 28e, 52e, 54e, in a multiplex mode to operate.
  • FIG. 9 shows a variant of an electronics unit 16f for supplying eight independent induction heating groups 20f, 22f, 24f, 26f, 28f, 52f, 54f, 56f of an induction heater 12f.
  • the electronics unit 16f has a first one Heating frequency module 32f provided to supply four of the induction heating groups 20f, 22f, 24f, 26f from a first power source 30f.
  • the first heating frequency module 32f has two heating frequency units, which are provided, the induction heating groups 20f, 22f, 24f, 26f in an operating mode in which is required for more than two of the induction heating 20f, 22f, 24f, 26f, a heating power greater than zero, to operate them in a multiplex mode.
  • the electronics unit 16f has a second heating frequency module 42f which is provided to supply four of the induction heating groups 28f, 52f, 54f, 56f from a second power source 40f.
  • the second heating frequency module 42f has two heating frequency units which are provided for requesting the induction heating groups 28f, 52f, 54f, 56f in an operating mode in which a heating power greater than zero is required for more than two of the induction heating groups 28f, 52f, 54f, 56f. to operate them in a multiplex mode.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • General Induction Heating (AREA)
EP13168774.1A 2012-05-30 2013-05-22 Dispositif de chauffage à induction Active EP2670213B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13168774T PL2670213T3 (pl) 2012-05-30 2013-05-22 Indukcyjny układ grzewczy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201230821A ES2432235B1 (es) 2012-05-30 2012-05-30 Dispositivo de calentamiento por inducción

Publications (3)

Publication Number Publication Date
EP2670213A2 true EP2670213A2 (fr) 2013-12-04
EP2670213A3 EP2670213A3 (fr) 2014-07-09
EP2670213B1 EP2670213B1 (fr) 2021-03-17

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EP (1) EP2670213B1 (fr)
ES (1) ES2432235B1 (fr)
PL (1) PL2670213T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3026982A1 (fr) * 2014-11-26 2016-06-01 Samsung Electronics Co., Ltd. Appareil de cuisson et son procédé de contrôle
CN113508640A (zh) * 2019-03-04 2021-10-15 伊莱克斯家用电器股份公司 用于烹饪设备的电源电路以及烹饪设备
WO2023211910A1 (fr) * 2022-04-28 2023-11-02 Electrolux Appliances Aktiebolag Plaque de cuisson à induction comprenant trois bobines d'induction
WO2024051998A1 (fr) * 2022-09-09 2024-03-14 BSH Hausgeräte GmbH Table de cuisson et dispositif de table de cuisson

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EP3026982A1 (fr) * 2014-11-26 2016-06-01 Samsung Electronics Co., Ltd. Appareil de cuisson et son procédé de contrôle
US10455647B2 (en) 2014-11-26 2019-10-22 Samsung Electronics Co., Ltd. Cooking apparatus and method for controlling the same
US11006486B2 (en) 2014-11-26 2021-05-11 Samsung Electronics Co., Ltd. Cooking apparatus and method for controlling the same
EP3026982B1 (fr) 2014-11-26 2021-07-07 Samsung Electronics Co., Ltd. Appareil de cuisson et son procédé de contrôle
EP3911117A1 (fr) * 2014-11-26 2021-11-17 Samsung Electronics Co., Ltd. Appareil de cuisson et son procédé de contrôle
CN113508640A (zh) * 2019-03-04 2021-10-15 伊莱克斯家用电器股份公司 用于烹饪设备的电源电路以及烹饪设备
CN113508640B (zh) * 2019-03-04 2024-05-10 伊莱克斯家用电器股份公司 用于烹饪设备的电源电路以及烹饪设备
WO2023211910A1 (fr) * 2022-04-28 2023-11-02 Electrolux Appliances Aktiebolag Plaque de cuisson à induction comprenant trois bobines d'induction
WO2024051998A1 (fr) * 2022-09-09 2024-03-14 BSH Hausgeräte GmbH Table de cuisson et dispositif de table de cuisson

Also Published As

Publication number Publication date
PL2670213T3 (pl) 2021-10-04
ES2432235A2 (es) 2013-12-02
EP2670213B1 (fr) 2021-03-17
ES2432235R1 (es) 2014-01-23
EP2670213A3 (fr) 2014-07-09
ES2432235B1 (es) 2014-11-04

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