EP3085201B1 - Dispositif pour plaque de cuisson - Google Patents

Dispositif pour plaque de cuisson Download PDF

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Publication number
EP3085201B1
EP3085201B1 EP14830884.4A EP14830884A EP3085201B1 EP 3085201 B1 EP3085201 B1 EP 3085201B1 EP 14830884 A EP14830884 A EP 14830884A EP 3085201 B1 EP3085201 B1 EP 3085201B1
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EP
European Patent Office
Prior art keywords
switch
connection
configuration unit
heating elements
contact
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.)
Active
Application number
EP14830884.4A
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German (de)
English (en)
Other versions
EP3085201A1 (fr
Inventor
Daniel Anton Falcon
Ignacio Garde Aranda
Oscar Gracia Campos
Ignacio Millan Serrano
Daniel Palacios Tomas
Oscar Pallares Zaera
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
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BSH Hausgeraete GmbH
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Publication of EP3085201A1 publication Critical patent/EP3085201A1/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
    • 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
    • H05B6/04—Sources of current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—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 a hob device according to the preamble of claim 1.
  • a hob device designed as an induction hob device which comprises a configuration unit.
  • the configuration unit has two input connections, each of which is provided for connection to at least one heating frequency unit.
  • the configuration unit has two output connections, each of which is provided for connection to a plurality of heating elements.
  • a switch of the configuration unit is arranged between a first of the input connections and a first of the output connections and also between a second of the input connections and a second of the output connections. The switches are intended to connect the two heating frequency units in parallel.
  • the object of the invention is in particular to provide a generic device with improved properties with regard to high efficiency.
  • the object is achieved by the features of claim 1, while advantageous refinements and developments of the invention can be found in the subclaims.
  • the invention is based on a hob device, in particular an induction hob device, with at least one configuration unit, the at least two input connections, which are each provided for connection to at least one inverter, at least two output connections, each provided for connection to at least one heating element, and has at least one switch, which is connected to a first input connection of the at least two input connections and at least to a first output connection of the at least two output connections, and which is provided for connecting the at least two inverters in parallel in at least one operating state, in particular in at least one boost mode to operate on at least one of the at least two heating elements.
  • the at least one configuration unit has at least one bridging element, which is provided for connecting the first input connection and a second output connection of the at least two output connections to one another, independently of a switching position of the at least one switch.
  • a “hob device” is to be understood in particular to mean at least a part, in particular a subassembly, of a hob, in particular an induction hob.
  • the cooktop device can also comprise the entire cooktop, in particular the entire induction cooktop.
  • a “configuration unit” is to be understood in particular to mean a unit which is intended to assume different switching positions in at least two mutually different operating states.
  • the at least one configuration unit has, in particular, at least one control contact, which is advantageously provided for receiving control signals generated in particular by a control unit and via which a switching position of the at least one configuration unit can be changed, in particular in at least one operating state.
  • An “inverter” is to be understood in particular to mean an electrical unit which generates an oscillating electrical signal, preferably with a frequency of at least 1 kHz, in particular of at least 10 kHz, advantageously of at least 20 kHz and in particular of at most 100 kHz for at least one heating element .
  • the inverter is provided to provide a maximum electrical power of at least 100 W, in particular at least 500 W, advantageously at least 1000 W and preferably at least 1500 W, which is required by the at least one heating element.
  • the cooktop device includes in particular the at least two inverters.
  • a first object "is provided for a connection to a second object" is to be understood in particular to mean that an electrically conductive connection exists between the first object and the second object in at least one operating state, advantageously independently of at least one switching unit in the in particular electrically conductive connection, which is arranged in particular between the first object and the second object.
  • a “heating element” is to be understood in particular to mean an element which is provided in at least one operating state for induction heating of a cookware, in particular with a maximum heating power of at least 100 W, in particular at least 500 W, preferably at least 1000 W and particularly advantageous of at least 1500 W.
  • the Hob device in particular the at least two heating elements, the hob device advantageously having a total of at least four, in particular at least six, advantageously at least eight and particularly advantageously a plurality of heating elements.
  • a “switch” is to be understood in particular to mean an element which is intended to establish and / or separate an electrically conductive connection between at least two points, in particular contacts of the switch.
  • the switch is designed in particular as an electrical element and preferably has at least one control contact for receiving a control signal, the switch being operable via the control contact and in particular switchable between the at least two contacts, in particular depending on a control signal generated by a control unit.
  • the phrase that a first object is "connected" to a second object is to be understood in particular to mean that there is at least one operating state in which the first object and the second object are in contact with one another by means of an electrically conductive connection, in particular in the at least one operating state flows via the electrically conductive connection of electrical current between the first object and the second object.
  • the at least one configuration unit is intended to operate the at least two inverters "in parallel on at least one of the at least two heating elements" in at least one operating state should in particular mean that the at least one configuration unit is provided in which at least one operating state to connect the at least two inverters at the same time to the at least one heating element, in particular by changing a switching position of the at least one switch, and in particular to transmit an energy generated by the at least two inverters to the at least one heating element at the same time, in particular in order to achieve a high and advantageously higher output power to achieve the at least one heating element.
  • the configuration unit comprises in particular an electrical connection between the second input connection and the first output connection, which is in particular electrically switchable.
  • a “bridging element” is to be understood in particular as an electrically conductive element which is intended to connect at least two contact points, in particular in an electrically conductive manner, to one another at least in an assembled state, in particular independently of an operating state and advantageously independently of switching positions of any switching units and / or any switch.
  • the at least one bridging element could be designed as a permanent connection between the at least two contact points, wherein the at least one bridging element could in particular be arranged fixedly on at least one printed circuit board.
  • the at least one bridging element is designed to be removable, wherein the at least one bridging element in particular enables different topologies and / or arrangements on the at least one printed circuit board.
  • “Provided” is to be understood in particular to be specially programmed, designed and / or equipped. The fact that an object is provided for a specific function should in particular be understood to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
  • the configuration according to the invention in particular enables high efficiency to be achieved, advantageously high electrical and / or in particular high economic efficiency.
  • a high output power can advantageously be achieved, in particular since the at least one configuration unit is provided for high electrical currents.
  • a low electrical current can advantageously be achieved through the switch, as a result of which in particular a switch with low requirements and / or with a small size can be used.
  • low costs can preferably be achieved.
  • the at least one switch could, for example, be connected exclusively to the first output connection, it being possible for there to be exactly one electrical connection between the first input connection and the second output connection, which according to the invention would be formed by the at least one bridging element.
  • the at least one switch is preferably additionally connected to the second output connection, in particular a "normally closed” contact of the at least one switch being connected to the second output connection.
  • a "normally open” contact of the at least one switch is connected to the second output connection.
  • the at least one bridging element could not be provided for bridging the "normally open" contact of the at least one switch.
  • the at least one bridging element is provided for bridging a "normally closed" contact of the at least one switch, as a result of which, in particular, a high output power and / or a high current strength can be provided at the second output connection.
  • the at least one configuration unit has at least one second switch, which is connected to a second input connection of the at least two input connections and at least to the second output connection, as a result of which, in particular, high flexibility can be achieved.
  • the at least one second switch could only be connected to the second output connection, it being possible for the one switchable electrical connection between the second input connection and the first output connection to advantageously exist.
  • the at least one second switch is preferably additionally connected to the first output connection, the at least one second switch being able to form an electrical connection, which is in particular switchable.
  • Various connection options of the at least one second switch to the first output connection that appear to be useful to a person skilled in the art are conceivable.
  • the at least one configuration unit has at least one second bridging element, which is provided to connect a second input connection of the at least two input connections and the first output connection to one another, as a result of which, in particular, high electrical and / or economic efficiency can be achieved.
  • the at least one second bridging element is provided for bridging a "normally closed" contact of the at least one second switch, a component with low requirements can be used in particular for the at least one second switch, as a result of which low costs and / or a low-cost for a customer-obtainable hob device can be reached.
  • the cooktop device comprises a switching unit which is connected between the at least one configuration unit and the at least two heating elements.
  • a “switching unit” is to be understood in particular to mean an electronic unit which is provided to establish and / or separate an electrically conductive connection at least between two contact points.
  • the switching unit preferably has at least one control contact via which the switching unit can advantageously be switched in at least one operating state and via which the switching unit receives at least one control signal, which is advantageously generated by a control unit, in particular in at least one operating state.
  • the switching unit is connected "between" the at least one configuration unit and the at least two heating elements is to be understood in particular to mean that in every operating state in which the at least two heating elements are supplied with electrical current by the configuration unit, the electrical current flows through the switching unit flows.
  • the switching unit is advantageously switched in front of the at least two heating elements, starting from the configuration unit. A high degree of flexibility can be achieved in this way.
  • the switching unit could have exactly one further switch, which in particular could be provided, advantageously in the event of a faulty switching position of the configuration unit, to disconnect the connection between the at least one configuration unit and the at least two heating elements and, in particular, to carry out an emergency shutdown.
  • the switching unit preferably has at least two further switches, each of which is provided for individually connecting one of the at least two heating elements to the configuration unit, a number of further switches and a number of heating elements advantageously being at least substantially the same.
  • Fig. 1 shows a hob 44a, which is designed as an induction hob, with a hob device 10a, which is designed as an induction hob device.
  • the hob device 10a has a hob plate 46a for setting up cookware.
  • the cooktop device 10a comprises a plurality of heating elements 26a, 28a for heating cookware set up (cf. Fig. 2 ).
  • the heating elements 26a, 28a are designed as induction heating elements. They are in an installed position Heating elements 26a, 28a arranged below the hob plate 46a. In an assembled state, the heating elements 26a, 28a are arranged in the form of a hob matrix. In the assembled state, the heating elements 26a, 28a are arranged in a half-bridge circuit.
  • the heating elements 26a, 28a are divided into two groups. Here, a first group has the heating elements 26a and a second group has the heating elements 28a.
  • the heating elements are designed as movably mounted heating elements and are provided to be moved beneath the hob plate in directions oriented essentially parallel to the hob plate. It is also conceivable that the heating elements form a classic hob, in which each heating element in particular defines an independent, separate heating zone, which is advantageously marked on the hob plate.
  • the cooktop device 10a comprises an operating unit 48a for entering and / or selecting operating parameters, for example a heating power and / or a heating power density and / or a heating zone (cf. Fig. 1 ).
  • the control unit 48a is provided for outputting a value of an operating parameter to an operator.
  • the cooktop device 10a comprises a control unit 50a which executes actions and / or changes settings as a function of operating parameters entered by the operating unit 48a. In one operating state, the control unit 50a operates the heating elements 26a, 28a in dependence on operating parameters entered by means of the operating unit 48a.
  • the cooktop device 10a comprises a rectifier 52a, which is provided for connection to a phase 54a of a household network (cf. Fig. 2 ).
  • the cooktop device 10a comprises two inverters 18a, 20a, which are each connected to the rectifier 52a.
  • the inverters 18a, 20a are provided for generating a high-frequency alternating current.
  • the heating elements 26a, 28a are supplied in the operating state by means of the high-frequency alternating current generated by the inverters 18a, 20a.
  • the control unit 50a controls the inverters 18a, 20a as a function of the operating parameters entered by means of the operating unit 48a.
  • the inverters 18a, 20a are essentially identical, which is why only one of the inverters 18a, 20a is considered in this section.
  • the Inverter 18a has two bidirectional unipolar switches connected in series. The switches are formed by a transistor and a diode connected in parallel.
  • the inverter 18a has a damping capacitor connected in parallel with the bidirectional unipolar switches. A voltage tap of the inverter 18a is arranged at a common contact point between two bidirectional unipolar switches.
  • the hob device 10a comprises a configuration unit 12a, which is connected between the inverters 18a, 20a and the heating elements 26a, 28a.
  • the configuration unit 12a has two input connections 14a, 16a, which are each provided for connection to one of the inverters 18a, 20a.
  • a first input connection 14a of the input connections 14a, 16a is connected to a first inverter 18a of the inverters 18a, 20a.
  • a second input connection 16a of the input connections 14a, 16a is connected to a second inverter 20a of the inverters 18a, 20a.
  • the configuration unit 12a has two output connections 22a, 24a.
  • a first output connection 22a of the output connections 22a, 24a is provided for connection to the heating elements 26a.
  • a second output connection 22a of the output connections 22a, 24a is provided for connection to the heating elements 28a.
  • the configuration unit 12a has a switch 30a and a second switch 32a.
  • the switches 30a, 32a are designed as changeover switches (cf. Fig. 2 ).
  • the switches 30a, 32a are designed as relays.
  • the switch 30a is connected to the first input connection 14a and the first output connection 22a.
  • the switch 30a has a "change-over” contact.
  • the "change-over” contact of the switch 30a is connected to the first input connection 14a.
  • the switch 30a has a "normally open” contact and a "normally closed” contact.
  • the "normally open” contact of the switch 30a is connected to the first output terminal 22a.
  • the “normally open” contact of the switch 30a is connected to the first output terminal 22a.
  • a “normally closed” contact of the switch 30a is free-standing, in particular connectionless.
  • the second switch 32a is connected to the second input connection 16a and the second output connection 24a.
  • the second Switch 32a has a "change-over” contact.
  • the “change-over” contact of the second switch 32a is connected to the second input connection 16a.
  • the second switch 32a has a "normally open” contact and a "normally closed” contact.
  • the "normally open” contact of the second switch 32a is connected to the second output terminal 24a.
  • the "normally closed” contact of the second switch 32a is free-standing, in particular connectionless.
  • the configuration unit 12a has a bridging element 34a and a second bridging element 36a.
  • the bridging element 34a connects the first input connection 14a and the second output connection 24a to one another irrespective of a switch position of the switches 30a, 32a. Regardless of a switch position of the switches 30a, 32a, the configuration unit 12a has an electrically conductive connection between the first inverter 18a and the second output connection 24a.
  • the electrically conductive connection between the first inverter 18a and the second output connection 24a is formed by the first bridging element 34a.
  • the second bridging element 36a connects the second input connection 16a and the first output connection 22a to one another regardless of a switch position of the switches 30a, 32a.
  • the configuration unit 12a has an electrically conductive connection between the second inverter 20a and the first output connection 22a, regardless of a switch position of the switches 30a, 32a.
  • the electrically conductive connection between the second inverter 20a and the first output connection 22a is formed by the second bridging element 36a.
  • the configuration unit 12a In the operating state, the configuration unit 12a is provided to operate the inverters 18a, 20a in parallel on a group of the heating elements 26a, 28a.
  • the configuration unit 12a could switch a switch position of the switch 30a from the "normally closed” contact into the "normally open” contact, as a result of which the inverters 18a, 20a are operated in parallel on the heating elements 28a.
  • the configuration unit 12a could switch a switch position of the second switch 32a from the "normally closed” contact into the "normally open” contact, as a result of which the inverters 18a, 20a are operated in parallel on the heating elements 26a.
  • the operating state in which the inverters 18a, 20a are operated in parallel on a group of the heating elements 26a, 28a is as Boost mode.
  • Boost mode In a further operating mode, it is conceivable to operate the first group of heating elements 26a on second inverter 20a. It is also possible to operate the second group of heating elements 28a on the first inverter 18a in the further operating mode.
  • the cooktop device 10a comprises a switching unit 38a, which is connected between the configuration unit 12a and the heating elements 26a, 28a.
  • the switching unit 38a has two input connections 56a, 58a.
  • a first input connection 56a of the input connections 56a 58a of the switching unit 38a is connected to the second output connection 24a of the configuration unit 12a.
  • a second input connection 58a of the input connections 56a 58a of the switching unit 38a is connected to the first output connection 22a of the configuration unit 12a.
  • the switching unit 38a has a plurality of output connections 60a.
  • a number of output connections 60a of the switching unit 38a is substantially equal to a number of heating elements 26a, 28a.
  • the switching unit 38a has a plurality of further switches 40a, 42a, which are each provided to connect one of the heating elements 26a, 28a individually to the configuration unit 12a.
  • the further switches 40a, 42a are divided into two groups.
  • a first group has the further switches 40a, which are assigned to the first group of heating elements 26a.
  • a further switch 40a of the first group is connected to a heating element 26a of the first group and is provided to connect the respective heating element 26a individually to the configuration unit 12a.
  • a second group has the further switches 42a, which are assigned to the second group of heating elements 28a.
  • a further switch 42a of the second group is connected to a heating element 28a of the second group and is provided for individually connecting the respective heating element 28a to the configuration unit 12a.
  • the cooktop device 10a comprises a plurality of resonance capacitances 62a.
  • Each resonance capacitance 62a is assigned to one of the heating elements 26a, 28a.
  • a number of resonance capacitances 62a is essentially the same as a number of heating elements 26a, 28a.
  • the cooktop device has exactly one resonance capacitance per group of heating elements, wherein the cooktop device in the present exemplary embodiment could in particular have two resonance capacities, each of which is a group of heating elements could be assigned.
  • each resonance capacitance 62a has two capacitors.
  • configurations with a different number of capacitors are conceivable.
  • Fig. 5 shows a hob device 10b, which is designed as an induction hob device, of a hob which is designed as an induction hob.
  • the cooktop device 10b comprises a configuration unit 12b which has two input connections 14b, 16b.
  • the input connections 14b, 16b are each provided for connection to an inverter 18b, 20b of the cooktop device 10b.
  • the configuration unit 12b has two output connections 22b, 24b.
  • a first output connection 22b of the output connections 22b, 24b is provided for connection to heating elements 26b of the cooktop device 10b.
  • a second output connection 22b of the output connections 22b, 24b is provided for connection to heating elements 28b of the hob device 10b.
  • a switch 30b of the cooktop device 10b is connected to a first input connection 14b of the input connections 14b, 16b and the first output connection 22b.
  • a "normally open” contact of the switch 30a is connected to the first output terminal 22b.
  • the switch 30b is additionally connected to the second output terminal 24b.
  • a "normally closed” contact of the switch 30b is connected to the second output terminal 22b.
  • the configuration unit could have exactly one switch (cf. Fig. 6 ), whereby further switches, in particular a second switch, could be dispensed with.
  • the configuration unit 12b preferably has a second switch 32b (cf. Fig. 5 ), the one with is connected to the second input connection 16b and the second output connection 24b.
  • a "normally open” contact of the second switch 32b is connected to the second output terminal 24b.
  • the second switch 32b is additionally connected to the first output terminal 22b.
  • a "normally closed” contact of the second switch 32a is connected to the first output terminal 22b.
  • the configuration unit could have exactly one second switch, it being possible to dispense with the switch.
  • the configuration unit 12b has a bridging element 34b, which connects the first input connection 14b and the second output connection 24b to one another regardless of a switch position of the switches 30b, 32b.
  • the bridging element 34b bridges the "normally closed” contact of the switch 30b.
  • the configuration unit 12b has a second bridging element 36b, which connects the second input connection 16b and the first output connection 22b to one another regardless of a switch position of the switches 30b, 32b.
  • the second bridging element 34b bridges the "normally closed” contact of the second switch 32b.
  • a switching unit 38b of the cooktop device 10b is connected between the configuration unit 12b and the heating elements 26b, 28b and has a plurality of further switches 40b, 42b.
  • the respective further switches 40b, 42b are provided to individually connect one of the heating elements 26b, 28b to the configuration unit 12b.
  • the further switches 40b, 42b are designed as changeover switches (cf. Fig. 5 ).
  • the further switches 30b, 32b are designed as relays.
  • Each further switch 40b, 42b has a "change-over" contact, a "normally-open” contact and a "normally-closed” contact.
  • the “change-over” contact of the further switches 40b, 42b is in each case arranged on a side of the further switches 40b, 42b facing away from the configuration unit 12b.
  • Each "change-over” contact of the further switches 40b, 42b is connected to one of the heating elements 26b, 28b.
  • Each further switch 40b, 42b is connected to the configuration unit 12b via the "normally open” contact.
  • each further switch 40b, 42b is connected to the configuration unit 12b via the "normally closed” contact — as is shown, for example, in FIG Fig. 8 is shown.
  • each further switch 40b, 42b could be connected to one of the heating elements 26b, 28b via the "normally open” contact (cf. Fig. 9 ).
  • each further switch 40b, 42b could also be connected to one of the heating elements 26b, 28b via the "normally closed” contact.
  • each further switch 40b, 42b is designed as on-switches (cf. Fig. 11 and 12th ).
  • each further switch 40b, 42b could have a "change-over” contact and a "normally-open” contact.
  • each further switch 40b, 42b has a "change-over” contact and a "normally closed” contact (not shown).
  • each further switch 40b, 42b could be connected to the configuration unit 12b via the "normally open” contact.
  • each further switch 40b, 42b would be connected to one of the heating elements 26b, 28b via the "change-over" contact.
  • each further switch 40b, 42b could be connected to one of the heating elements 26b, 28b via the "normally open” contact (cf. Fig. 12 ).
  • Each further switch 40b, 42b could be connected to the configuration unit 12b via the "change-over" contact.
  • a switching position of the configuration unit 12b and a switching position of the switching unit 38b are coupled to one another.
  • This should take the example of Fig. 5 are explained.
  • a switching position of the "normally closed” contacts of the further switches 40a, 42a could be coupled to a switching position of the "normally open” contacts of the switches 30b, 32b of the configuration unit 12b.
  • the configuration unit 12b and the switching unit 38b are designed independently of one another.
  • switching positions of the configuration unit 12b and switching positions of the switching unit 38b can be set independently of one another.
  • the configuration unit 12b is provided by means of the switches 30b, 32b to operate the inverters 18b, 20b in parallel on a group of the heating elements 26b, 28b. It is conceivable here that the configuration unit 12b in the operating mode operates the inverters 18b, 20b in parallel on exactly one heating element 26b, 28b of a group of the heating elements 26b, 28b. Alternatively, the configuration unit 12b in the operating mode could operate the inverters 18b, 20b in parallel on a plurality and / or all the heating elements 26b, 28b of a group of the heating elements 26b, 28b. It is also conceivable that the configuration unit 12b operates each of the inverters 18b, 20b on one of the groups of heating elements 26b, 28b in a further operating mode, a large part and advantageously all heating elements 26b, 28b being operated together.
  • the cooktop device 10b comprises a plurality of resonance capacitances 62b.
  • Each resonance capacitance 62b has capacitors. Alternatively, configurations with a different number of capacitors are conceivable.
  • Each resonance capacitance 62b is assigned to one of the heating elements 26b, 28b, a number of resonance capacitances 62b being essentially the same as a number of heating elements 26b, 28b.
  • the cooktop device 10b has exactly one resonance capacitance 62b per group of heating elements 26b, 28b.
  • the cooktop device 10b could in particular have two resonance capacitances 62b, each of which could be assigned to a group of heating elements 26b, 28b.
  • configurations with a different number of inverters are possible, in particular with more than two inverters, which could each be connected to the rectifier.
  • a number of switches of the configuration unit would be adapted accordingly, wherein in particular an algorithm could be used to calculate a minimally required number of switches.

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

Claims (9)

  1. Dispositif pour table de cuisson, avec au moins une unité de configuration (12a-b), laquelle comprend au moins deux bornes d'entrée (14a-b, 16a-b) qui sont prévues respectivement pour une liaison à au moins un onduleur (18a-b, 20a-b), au moins deux bornes de sortie (22a-b, 24a-b) qui sont prévues respectivement pour une liaison à au moins un élément chauffant (26a-b, 28a-b), et au moins un commutateur (30a-b), qui est relié à une première borne d'entrée (14a-b) des au moins deux bornes d'entrée (14a-b, 16a-b) et au moins à une première borne de sortie (22a-b) des au moins deux bornes de sortie (22a-b, 24a-b), et qui est prévu pour faire fonctionner les au moins deux onduleurs (18a-b, 20a-b) dans au moins un état de fonctionnement parallèlement à au moins l'un des au moins deux éléments chauffants (26a-b, 28a-b), caractérisé en ce que l'au moins une unité de configuration (12a-b) comprend au moins un élément de pontage (34a-b), lequel est prévu, indépendamment d'une position de commutation de l'au moins un commutateur, pour relier l'une à l'autre la première borne d'entrée (14a-b) et une deuxième borne de sortie (24a-b) des au moins deux bornes de sortie (22a-b, 24a-b) et pour ponter un contact « Normally-Closed » de l'au moins un commutateur (30b).
  2. Dispositif pour table de cuisson selon la revendication 1, caractérisé en ce que l'au moins un commutateur (30b) est relié de plus à la deuxième borne de sortie (24b).
  3. Dispositif pour table de cuisson selon l'une des revendications précédentes, caractérisé en ce que l'au moins une unité de configuration (12a-b) comprend au moins un deuxième commutateur (32a-b), lequel est relié à une deuxième borne d'entrée (16a-b) des au moins deux bornes d'entrée (14a-b, 16a-b) et au moins à la deuxième borne de sortie (24a-b).
  4. Dispositif pour table de cuisson selon la revendication 3, caractérisé en ce que l'au moins un deuxième commutateur (32b) est relié de plus à la première borne de sortie (22b).
  5. Dispositif pour table de cuisson selon l'une des revendications précédentes, caractérisé en ce que l'au moins une unité de configuration (12a-b) comprend au moins un deuxième élément de pontage (36a-b), lequel est prévu pour relier l'une à l'autre une deuxième borne d'entrée (16a-b) des au moins deux bornes d'entrée (14a-b, 16a-b) et la première borne de sortie (22a-b).
  6. Dispositif pour table de cuisson selon les revendications 3 et 5, caractérisé en ce que l'au moins un deuxième élément de pontage (36b) est prévu pour ponter un contact « Normally-Closed » de l'au moins un deuxième commutateur (32b).
  7. Dispositif pour table de cuisson selon l'une des revendications précédentes, caractérisé par une unité de commutation (38a-b), laquelle est commutée entre l'au moins une unité de configuration (12a-b) et les au moins deux éléments chauffants (26a-b, 28a-b).
  8. Dispositif pour table de cuisson selon la revendication 7, caractérisé en ce que l'unité de commutation (38a-b) comprend au moins deux commutateurs supplémentaires (40a-b, 42a-b), lesquels sont prévus respectivement pour relier l'un des au moins deux éléments chauffants (26a-b, 28a-b) individuellement à l'unité de configuration (12a-b).
  9. Table de cuisson avec au moins un dispositif pour table de cuisson (10a-b) selon l'une des revendications 1 à 8.
EP14830884.4A 2013-12-20 2014-12-17 Dispositif pour plaque de cuisson Active EP3085201B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201331877A ES2538605B1 (es) 2013-12-20 2013-12-20 Dispositivo de campo de cocción
PCT/IB2014/067014 WO2015092704A1 (fr) 2013-12-20 2014-12-17 Dispositif pour plaque de cuisson

Publications (2)

Publication Number Publication Date
EP3085201A1 EP3085201A1 (fr) 2016-10-26
EP3085201B1 true EP3085201B1 (fr) 2020-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14830884.4A Active EP3085201B1 (fr) 2013-12-20 2014-12-17 Dispositif pour plaque de cuisson

Country Status (4)

Country Link
US (1) US10321521B2 (fr)
EP (1) EP3085201B1 (fr)
ES (1) ES2538605B1 (fr)
WO (1) WO2015092704A1 (fr)

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WO2019045322A1 (fr) 2017-08-31 2019-03-07 엘지전자 주식회사 Appareil de transmission d'énergie sans fil et de chauffage par induction à algorithme de commande amélioré
KR102413858B1 (ko) * 2017-08-31 2022-06-28 엘지전자 주식회사 제어 알고리즘이 개선된 유도 가열 및 무선 전력 전송 장치
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Also Published As

Publication number Publication date
US20160323937A1 (en) 2016-11-03
EP3085201A1 (fr) 2016-10-26
US10321521B2 (en) 2019-06-11
ES2538605B1 (es) 2016-04-15
WO2015092704A1 (fr) 2015-06-25
ES2538605A1 (es) 2015-06-22

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