EP3085201B1 - Hob apparatus - Google Patents

Hob apparatus 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
Other languages
German (de)
French (fr)
Other versions
EP3085201A1 (en
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/en
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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)

Description

Die Erfindung geht aus von einer Kochfeldvorrichtung nach dem Oberbegriff des Anspruchs 1.The invention is based on a hob device according to the preamble of claim 1.

Aus dem Dokument EP 2 515 608 A2 ist bereits eine als Induktionskochfeldvorrichtung ausgebildete Kochfeldvorrichtung bekannt, die eine Konfigurationseinheit umfasst. Die Konfigurationseinheit weist zwei Eingangsanschlüsse auf, die jeweils zu einer Verbindung mit zumindest einer Heizfrequenzeinheit vorgesehen sind. Zudem weist die Konfigurationseinheit zwei Ausgangsanschlüsse auf, die jeweils zu einer Verbindung mit mehreren Heizelementen vorgesehen sind. Zwischen einem ersten der Eingangsanschlüsse und einem ersten der Ausgangsanschlüsse als auch zwischen einem zweiten der Eingangsanschlüsse und einem zweiten der Ausgangsanschlüsse ist jeweils ein Schalter der Konfigurationseinheit angeordnet. Die Schalter sind dazu vorgesehen, die beiden Heizfrequenzeinheiten parallel zu schalten.From the document EP 2 515 608 A2 a hob device designed as an induction hob device is already known, 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. In addition, 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.

Die Aufgabe der Erfindung besteht insbesondere darin, eine gattungsgemäße Vorrichtung mit verbesserten Eigenschaften hinsichtlich einer hohen Effizienz bereitzustellen. Die Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst, während vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung den Unteransprüchen entnommen werden können.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.

Die Erfindung geht aus von einer Kochfeldvorrichtung, insbesondere einer Induktionskochfeldvorrichtung, mit zumindest einer Konfigurationseinheit, die zumindest zwei Eingangsanschlüsse, die jeweils zu einer Verbindung mit zumindest einem Wechselrichter vorgesehen sind, zumindest zwei Ausgangsanschlüsse, die jeweils zu einer Verbindung mit zumindest einem Heizelement vorgesehen sind, und zumindest einen Schalter aufweist, der mit einem ersten Eingangsanschluss der zumindest zwei Eingangsanschlüsse und wenigstens mit einem ersten Ausgangsanschluss der zumindest zwei Ausgangsanschlüsse verbunden ist, und die dazu vorgesehen ist, die zumindest zwei Wechselrichter in wenigstens einem Betriebszustand, insbesondere in zumindest einem Boostmodus, parallel an wenigstens einem der zumindest zwei Heizelemente zu betreiben.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.

Es wird vorgeschlagen, dass die zumindest eine Konfigurationseinheit zumindest ein Überbrückungselement aufweist, das dazu vorgesehen ist, unabhängig von einer Schaltstellung des zumindest einen Schalters den ersten Eingangsanschluss und einen zweiten Ausgangsanschluss der zumindest zwei Ausgangsanschlüsse miteinander zu verbinden. Unter einer "Kochfeldvorrichtung" soll insbesondere zumindest ein Teil, insbesondere eine Unterbaugruppe, eines Kochfelds, insbesondere eines Induktionskochfelds, verstanden werden. Insbesondere kann die Kochfeldvorrichtung auch das gesamte Kochfeld, insbesondere das gesamte Induktionskochfeld, umfassen. Unter einer "Konfigurationseinheit" soll insbesondere eine Einheit verstanden werden, die dazu vorgesehen ist, in zumindest zwei voneinander verschiedenen Betriebszuständen unterschiedliche Schaltstellungen anzunehmen. Die zumindest eine Konfigurationseinheit weist insbesondere zumindest einen Steuerkontakt auf, welcher vorteilhaft zu einem Empfang von insbesondere von einer Steuereinheit erzeugten Steuersignalen vorgesehen ist und über welchen insbesondere in wenigstens einem Betriebszustand eine Schaltstellung der zumindest einen Konfigurationseinheit veränderbar ist. Unter einem "Wechselrichter" soll insbesondere eine elektrische Einheit verstanden werden, die ein oszillierendes elektrisches Signal, vorzugsweise mit einer Frequenz von zumindest 1 kHz, insbesondere von wenigstens 10 kHz, vorteilhaft von mindestens 20 kHz und insbesondere von maximal 100 kHz für wenigstens ein Heizelement erzeugt. Insbesondere ist der Wechselrichter dazu vorgesehen, eine, von dem wenigstens einen Heizelement geforderte, maximale elektrische Leistung von zumindest 100 W, insbesondere zumindest 500 W, vorteilhaft zumindest 1000 W und vorzugsweise zumindest 1500 W bereitzustellen. Hierbei umfasst die Kochfeldvorrichtung insbesondere die zumindest zwei Wechselrichter. Unter der Wendung, dass ein erstes Objekt "zu einer Verbindung mit einem zweiten Objekt vorgesehen" ist, soll insbesondere verstanden werden, dass in wenigstens einem Betriebszustand eine elektrisch leitende Verbindung zwischen dem ersten Objekt und dem zweiten Objekt existiert, vorteilhaft unabhängig von zumindest einer Schalteinheit in der insbesondere elektrisch leitenden Verbindung, die insbesondere zwischen dem ersten Objekt und dem zweiten Objekt angeordnet ist. Unter einem "Heizelement" soll insbesondere ein Element verstanden werden, welches in wenigstens einem Betriebszustand zu einem insbesondere induktiven Beheizen eines Gargeschirrs vorgesehen ist, insbesondere mit einer maximalen Heizleistung von wenigstens 100 W, insbesondere von zumindest 500 W, vorzugsweise von mindestens 1000 W und besonders vorteilhaft von wenigstens 1500 W. Hierbei umfasst die Kochfeldvorrichtung insbesondere die zumindest zwei Heizelemente, wobei die Kochfeldvorrichtung vorteilhaft insgesamt zumindest vier, insbesondere zumindest sechs, vorteilhaft zumindest acht und besonders vorteilhaft eine Vielzahl an Heizelementen aufweist. Unter einem "Schalter" soll insbesondere ein Element verstanden werden, das dazu vorgesehen ist, zwischen zumindest zwei Punkten, insbesondere Kontakten des Schalters, eine elektrisch leitende Verbindung herzustellen und/oder zu trennen. Hierbei ist der Schalter insbesondere als elektrisches Element ausgebildet und weist vorzugsweise zumindest einen Steuerkontakt zu einem Empfang eines Steuersignals auf, wobei der Schalter über den Steuerkontakt betätigbar und insbesondere zwischen den zumindest zwei Kontakten schaltbar ist, insbesondere in Abhängigkeit eines von einer Steuereinheit erzeugten Steuersignals. Unter der Wendung, dass ein erstes Objekt mit einem zweiten Objekt "verbunden" ist, soll insbesondere verstanden werden, dass wenigstens ein Betriebszustand existiert, in welchem das erste Objekt und das zweite Objekt mittels einer elektrisch leitfähigen Verbindung miteinander in Kontakt stehen, wobei insbesondere in dem wenigstens einen Betriebszustand über die elektrisch leitfähige Verbindung elektrischer Strom zwischen dem ersten Objekt und dem zweiten Objekt fließt. Unter der Wendung, dass die zumindest eine Konfigurationseinheit dazu vorgesehen ist, die zumindest zwei Wechselrichter in wenigstens einem Betriebszustand "parallel an wenigstens einem der zumindest zwei Heizelemente zu betreiben", soll insbesondere verstanden werden, dass die zumindest eine Konfigurationseinheit dazu vorgesehen ist, in dem wenigstens einen Betriebszustand die zumindest zwei Wechselrichter insbesondere durch Änderung einer Schaltstellung des zumindest einen Schalters zeitgleich an das wenigstens eine Heizelement anzuschließen und insbesondere eine von den zumindest zwei Wechselrichtern erzeugte Energie zeitgleich an das zumindest eine Heizelement zu übertragen, insbesondere um eine hohe und vorteilhaft höhere Ausgangsleistung des zumindest einen Heizelements zu erreichen. Hierbei umfasst die Konfigurationseinheit insbesondere eine elektrische Verbindung zwischen dem zweiten Eingangsanschluss und dem ersten Ausgangsanschluss, die insbesondere elektrisch schaltbar ist. Unter einem "Überbrückungselement" soll insbesondere ein elektrisch leitfähiges Element verstanden werden, das dazu vorgesehen ist, wenigstens in einem montierten Zustand zumindest zwei Kontaktstellen insbesondere direkt elektrisch leitend miteinander zu verbinden, insbesondere unabhängig von einem Betriebszustand und vorteilhaft unabhängig von Schaltstellungen beliebiger Schalteinheiten und/oder beliebiger Schalter. Es sind verschiedene, einem Fachmann als sinnvoll erscheinende Ausgestaltungen des zumindest einen Überbrückungselements denkbar. Beispielsweise könnte das zumindest eine Überbrückungselement als permanente Verbindung zwischen den zumindest zwei Kontaktstellen ausgebildet sein, wobei das zumindest eine Überbrückungselement insbesondere fest an zumindest einer Leiterplatte angeordnet sein könnte. Ebenfalls denkbar ist, dass das zumindest eine Überbrückungselement abnehmbar ausgebildet ist, wobei das zumindest eine Überbrückungselement insbesondere unterschiedliche Topologien und/oder Anordnungen an der zumindest einen Leiterplatte ermöglicht. Unter "vorgesehen" soll insbesondere speziell programmiert, ausgelegt und/oder ausgestattet verstanden werden. Darunter, dass ein Objekt zu einer bestimmten Funktion vorgesehen ist, soll insbesondere verstanden werden, dass das Objekt diese bestimmte Funktion in zumindest einem Anwendungs- und/oder Betriebszustand erfüllt und/oder ausführt.It is proposed that 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. In particular, 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 . In particular, 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. Here, the cooktop device includes in particular the at least two inverters. The phrase that 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. Here, 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. Here, 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 phrase that 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. Here, 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. There are different ones to one skilled in the art Configurations of the at least one bridging element that appear sensible are conceivable. For example, 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. It is also conceivable that 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.

Durch die erfindungsgemäße Ausgestaltung kann insbesondere eine hohe Effizienz erreicht werden, vorteilhaft eine hohe elektrische und/oder insbesondere eine hohe wirtschaftliche Effizienz. Es kann vorteilhaft eine hohe Ausgangsleistung erreicht werden, insbesondere da die zumindest eine Konfigurationseinheit für hohe elektrische Ströme vorgesehen ist. Aufgrund des zumindest einen Überbrückungselements kann vorteilhaft ein geringer elektrischer Strom durch den Schalter erreicht werden, wodurch insbesondere ein Schalter mit geringen Anforderungen und/oder mit geringer Größe verwendet werden kann. Hierdurch können vorzugsweise geringe Kosten erreicht werden. Der zumindest eine Schalter könnte beispielsweise ausschließlich mit dem ersten Ausgangsanschluss verbunden sein, wobei genau eine elektrische Verbindung zwischen dem ersten Eingangsanschluss und dem zweiten Ausgangsanschluss existieren könnte, die gemäss der Erfindung von dem zumindest einen Überbrückungselement gebildet wäre. Vorzugsweise ist der zumindest eine Schalter jedoch zusätzlich mit dem zweiten Ausgangsanschluss verbunden, wobei insbesondere ein "Normally-Closed"-Kontakt des zumindest einen Schalters mit dem zweiten Ausgangsanschluss verbunden ist. Alternativ ist denkbar, dass ein "Normally-Opened"-Kontakt des zumindest einen Schalters mit dem zweiten Ausgangsanschluss verbunden ist. Dadurch kann insbesondere eine hohe Flexibilität erreicht werden.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. Because of the at least one bridging element, 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. As a result, 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. However, 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. Alternatively, it is conceivable that a "normally open" contact of the at least one switch is connected to the second output connection. A high degree of flexibility can be achieved in this way.

Nicht gemäss der Erfindung könnte das zumindest eine Überbrückungselement dazu vorgesehen sein, den "Normally-Opened"-Kontakt des zumindest einen Schalters zu überbrücken.According to the invention, the at least one bridging element could not be provided for bridging the "normally open" contact of the at least one switch.

Gemäss der Erfindung ist das zumindest eine Überbrückungselement jedoch dazu vorgesehen, einen "Normally-Closed"-Kontakt des zumindest einen Schalters zu überbrücken, wodurch an dem zweiten Ausgangsanschluss insbesondere eine hohe Ausgangsleistung und/oder eine hohe Stromstärke bereitgestellt werden kann.According to the invention, however, 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.

Weiterhin wird vorgeschlagen, dass die zumindest eine Konfigurationseinheit zumindest einen zweiten Schalter aufweist, der mit einem zweiten Eingangsanschluss der zumindest zwei Eingangsanschlüsse und wenigstens mit dem zweiten Ausgangsanschluss verbunden ist, wodurch insbesondere eine hohe Flexibilität erreicht werden kann. Beispielsweise könnte der zumindest eine zweite Schalter ausschließlich mit dem zweiten Ausgangsanschluss verbunden sein, wobei vorteilhaft genau die eine insbesondere schaltbare elektrische Verbindung zwischen dem zweiten Eingangsanschluss und dem ersten Ausgangsanschluss existieren könnte. Vorzugsweise ist der zumindest eine zweite Schalter jedoch zusätzlich mit dem ersten Ausgangsanschluss verbunden, wobei der zumindest eine zweite Schalter die eine insbesondere schaltbare elektrische Verbindung ausbilden könnte. Es sind verschiedene, einem Fachmann als sinnvoll erscheinende Verbindungsmöglichkeiten des zumindest einen zweiten Schalters mit dem ersten Ausgangsanschluss denkbar. Beispielsweise könnte ein "Normally-Opened"-Kontakt des zumindest einen Schalters mit dem ersten Ausgangsanschluss verbunden sein. Vorteilhaft ist jedoch ein "Normally-Closed"-Kontakt des zumindest einen Schalters mit dem ersten Ausgangsanschluss verbunden. Dadurch kann insbesondere auf weitere Schalter verzichtet werden, wodurch vorteilhaft geringe Kosten erreicht werden können. Zudem wird vorgeschlagen, dass die zumindest eine Konfigurationseinheit zumindest ein zweites Überbrückungselement aufweist, das dazu vorgesehen ist, einen zweiten Eingangsanschluss der zumindest zwei Eingangsanschlüsse und den ersten Ausgangsanschluss miteinander zu verbinden, wodurch insbesondere eine hohe elektrische und/oder wirtschaftliche Effizienz erreicht werden kann.It is further proposed that 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. For example, 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. However, 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. For example, a "normally open" contact of the at least one switch could be connected to the first output connection. However, a "normally closed" contact of the at least one switch is advantageously connected to the first output connection. This makes it possible, in particular, to dispense with further switches, which can advantageously achieve low costs. In addition, it is proposed that 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.

Ist das zumindest eine zweite Überbrückungselement dazu vorgesehen, einen "Normally-Closed"-Kontakt des zumindest einen zweiten Schalters zu überbrücken, kann insbesondere für den zumindest einen zweiten Schalter ein Bauteil mit geringen Anforderungen verwendet werden, wodurch geringe Kosten und/oder eine preisgünstig für einen Kunden erwerbbare Kochfeldvorrichtung erreicht werden kann.If 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.

Ferner wird vorgeschlagen, dass die Kochfeldvorrichtung eine Schalteinheit umfasst, die zwischen der zumindest einen Konfigurationseinheit und den zumindest zwei Heizelementen geschalten ist. Unter einer "Schalteinheit" soll insbesondere eine elektronische Einheit verstanden werden, die dazu vorgesehen ist, zumindest zwischen zwei Kontaktstellen eine elektrisch leitende Verbindung herzustellen und/oder zu trennen. Die Schalteinheit weist vorzugsweise zumindest einen Steuerkontakt auf, über welchen die Schalteinheit vorteilhaft in wenigstens einem Betriebszustand schaltbar ist und über welchen die Schalteinheit insbesondere in wenigstens einem Betriebszustand wenigstens ein Steuersignal, das vorteilhaft von einer Steuereinheit erzeugt ist, empfängt. Unter der Wendung, dass die Schalteinheit "zwischen" der zumindest einen Konfigurationseinheit und den zumindest zwei Heizelementen geschalten ist, soll insbesondere verstanden werden, dass in jedem Betriebszustand, in welchen die zumindest zwei Heizelemente durch die Konfigurationseinheit elektrischen Strom zugeleitet bekommen, der elektrische Strom durch die Schalteinheit fließt. Bei Betrachtung in Richtung eines Leitungspfads ist die Schalteinheit vorteilhaft ausgehend von der Konfigurationseinheit vor den zumindest zwei Heizelementen geschalten. Dadurch kann insbesondere eine hohe Flexibilität erreicht werden.It is further proposed that 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 phrase "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. When viewed in the direction of a line path, 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.

Beispielsweise könnte die Schalteinheit genau einen weiteren Schalter aufweisen, der insbesondere dazu vorgesehen sein könnte, und zwar vorteilhaft im Falle einer fehlerhaften Schaltstellung der Konfigurationseinheit, die Verbindung zwischen der zumindest einen Konfigurationseinheit und den zumindest zwei Heizelementen zu trennen und insbesondere eine Notabschaltung auszuführen. Vorzugsweise weist die Schalteinheit jedoch zumindest zwei weitere Schalter auf, die jeweils dazu vorgesehen sind, eines der zumindest zwei Heizelemente einzeln mit der Konfigurationseinheit zu verbinden, wobei eine Anzahl an weiteren Schaltern und eine Anzahl an Heizelementen vorteilhaft zumindest im Wesentlichen gleich ist. Dadurch kann insbesondere eine hohe Betriebssicherheit erreicht werden.For example, 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. However, 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. As a result, high operational reliability can be achieved in particular.

Es zeigen:Show it:

Fig. 1Fig. 1
ein erfindungsgemäßes Kochfeld mit einer erfindungsgemäßen Kochfeldvorrichtung in einer schematischen Draufsicht,an inventive hob with an inventive hob device in a schematic plan view,
Fig. 2Fig. 2
die Kochfeldvorrichtung des Kochfelds in einer schematischen Darstellung,the cooktop device of the cooktop in a schematic representation,
Fig. 3Fig. 3
eine abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung,a modified cooktop device in a schematic representation,
Fig. 4Fig. 4
eine weitere abgewandelte Kochfeldvorrichtung in einer schematischen Darstellunganother modified cooktop device in a schematic representation
Fig. 5Fig. 5
eine alternative Kochfeldvorrichtung in einer schematischen Darstellung,an alternative cooktop device in a schematic representation,
Fig. 6Fig. 6
eine abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung,a modified cooktop device in a schematic representation,
Fig. 7Fig. 7
eine weitere abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung,another modified cooktop device in a schematic representation,
Fig. 8Fig. 8
eine weitere abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung,another modified cooktop device in a schematic representation,
Fig. 9Fig. 9
eine alternative abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung,an alternative modified cooktop device in a schematic representation,
Fig. 10Fig. 10
eine weitere alternative abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung,another alternative modified cooktop device in a schematic representation,
Fig. 11Fig. 11
eine weitere alternative Kochfeldvorrichtung in einer schematischen Darstellung,another alternative cooktop device in a schematic representation,
Fig. 12Fig. 12
eine weitere abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung unda further modified cooktop device in a schematic representation and
Fig. 13Fig. 13
eine alternative abgewandelte Kochfeldvorrichtung in einer schematischen Darstellung.an alternative modified cooktop device in a schematic representation.

Fig. 1 zeigt ein Kochfeld 44a, das als Induktionskochfeld ausgebildet ist, mit einer Kochfeldvorrichtung 10a, die als Induktionskochfeldvorrichtung ausgebildet ist. Die Kochfeldvorrichtung 10a weist eine Kochfeldplatte 46a zu einem Aufstellen von Gargeschirr auf. Zudem umfasst die Kochfeldvorrichtung 10a mehrere Heizelemente 26a, 28a zu einer Erhitzung von aufgestelltem Gargeschirr (vgl. Fig. 2). Die Heizelemente 26a, 28a sind als Induktionsheizelemente ausgebildet. In einer Einbaulage sind die Heizelemente 26a, 28a unterhalb der Kochfeldplatte 46a angeordnet. In einem montierten Zustand sind die Heizelemente 26a, 28a in Form einer Kochfeldmatrix angeordnet. Die Heizelemente 26a, 28a sind in dem montierten Zustand in Halbbrückenschaltung angeordnet. Die Heizelemente 26a, 28a sind in zwei Gruppen unterteilt. Hierbei weist eine erste Gruppe die Heizelemente 26a und eine zweite Gruppe die Heizelemente 28a auf. Alternativ zu einer Kochfeldmatrix ist denkbar, dass die Heizelemente als beweglich gelagerte Heizelemente ausgebildet und dazu vorgesehen sind, unterhalb der Kochfeldplatte in im Wesentlichen parallel zu der Kochfeldplatte ausgerichteten Richtungen bewegt zu werden. Zudem ist denkbar, dass die Heizelemente ein klassisches Kochfeld ausbilden, bei welchem jedes Heizelement insbesondere eine eigenständige, separate Heizzone definiert, die vorteilhaft auf der Kochfeldplatte markiert ist. 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. In addition, 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. As an alternative to a hob matrix, it is conceivable that 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.

Die Kochfeldvorrichtung 10a umfasst eine Bedieneinheit 48a zu einer Eingabe und/oder Auswahl von Betriebsparametern, beispielsweise einer Heizleistung und/oder einer Heizleistungsdichte und/oder einer Heizzone (vgl. Fig. 1). Die Bedieneinheit 48a ist zu einer Ausgabe eines Werts eines Betriebsparameters an einen Bediener vorgesehen. Die Kochfeldvorrichtung 10a umfasst eine Steuereinheit 50a, die in Abhängigkeit von mittels der Bedieneinheit 48a eingegebener Betriebsparameter Aktionen ausführt und/oder Einstellungen verändert. Die Steuereinheit 50a betreibt in einem Betriebszustand die Heizelemente 26a, 28a in Abhängigkeit von mittels der Bedieneinheit 48a eingegebener Betriebsparameter.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.

Die Kochfeldvorrichtung 10a umfasst einen Gleichrichter 52a, der zu einem Anschluss an eine Phase 54a eines Haushaltsnetzes vorgesehen ist (vgl. Fig. 2). Zudem umfasst die Kochfeldvorrichtung 10a zwei Wechselrichter 18a, 20a, die jeweils mit dem Gleichrichter 52a verbunden sind. Die Wechselrichter 18a, 20a sind zu einer Erzeugung eines hochfrequenten Wechselstroms vorgesehen. Mittels des von den Wechselrichtern 18a, 20a erzeugten hochfrequenten Wechselstroms werden in dem Betriebszustand die Heizelemente 26a, 28a versorgt. In Abhängigkeit von mittels der Bedieneinheit 48a eingegebener Betriebsparameter steuert die Steuereinheit 50a die Wechselrichter 18a, 20a an.The cooktop device 10a comprises a rectifier 52a, which is provided for connection to a phase 54a of a household network (cf. Fig. 2 ). In addition, 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.

Die Wechselrichter 18a, 20a sind im Wesentlichen identisch ausgebildet, weshalb in diesem Abschnitt lediglich einer der Wechselrichter 18a, 20a betrachtet wird. Der Wechselrichter 18a weist zwei, in Reihe geschaltete, bidirektionale unipolare Schalter auf. Die Schalter sind von einem Transistor und einer parallel geschalteten Diode gebildet. Zudem weist der Wechselrichter 18a jeweils einen parallel zu den bidirektionalen unipolaren Schaltern geschalteten Dämpfungskondensator auf. Ein Spannungsabgriff des Wechselrichters 18a ist an einer gemeinsamen Kontaktstelle zweier bidirektionaler unipolarer Schalter angeordnet.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. In addition, 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.

Die Kochfeldvorrichtung 10a umfasst eine Konfigurationseinheit 12a, die zwischen den Wechselrichtern 18a, 20a und den Heizelementen 26a, 28a geschalten ist. Die Konfigurationseinheit 12a weist zwei Eingangsanschlüsse 14a, 16a auf, die jeweils zu einer Verbindung mit einem der Wechselrichter 18a, 20a vorgesehen sind. Ein erster Eingangsanschluss 14a der Eingangsanschlüsse 14a, 16a ist mit einem ersten Wechselrichter 18a der Wechselrichter 18a, 20a verbunden. Ein zweiter Eingangsanschluss 16a der Eingangsanschlüsse 14a, 16a ist mit einem zweiten Wechselrichter 20a der Wechselrichter 18a, 20a verbunden. Die Konfigurationseinheit 12a weist zwei Ausgangsanschlüsse 22a, 24a auf. Ein erster Ausgangsanschluss 22a der Ausgangsanschlüsse 22a, 24a ist zu einer Verbindung mit den Heizelementen 26a vorgesehen. Ein zweiter Ausgangsanschluss 22a der Ausgangsanschlüsse 22a, 24a ist zu einer Verbindung mit den Heizelementen 28a vorgesehen.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.

Die Konfigurationseinheit 12a weist einen Schalter 30a und einen zweiten Schalter 32a auf. Alternativ zu einer Ausbildung der Konfigurationseinheit mit zwei Schaltern ist eine Ausgestaltung mit genau einem Schalter denkbar (vgl. Fig. 3 und 4). Die Schalter 30a, 32a sind als Wechselschalter ausgebildet (vgl. Fig. 2). Die Schalter 30a, 32a sind als Relais ausgebildet. Der Schalter 30a ist mit dem ersten Eingangsanschluss 14a und dem ersten Ausgangsanschluss 22a verbunden. Der Schalter 30a weist einen "Change-Over"-Kontakt auf. Der "Change-Over"-Kontakt des Schalters 30a ist mit dem ersten Eingangsanschluss 14a verbunden. Der Schalter 30a weist einen "Normally-Opened"-Kontakt und einen "Normally-Closed"-Kontakt auf. Der "Normally-Opened"-Kontakt des Schalters 30a ist mit dem ersten Ausgangsanschluss 22a verbunden. Der "Normally-Opened"-Kontakt des Schalters 30a ist mit dem ersten Ausgangsanschluss 22a verbunden. Ein "Normally-Closed"-Kontakt des Schalters 30a ist freistehend, insbesondere anschlusslos. Der zweite Schalter 32a ist mit dem zweiten Eingangsanschluss 16a und dem zweiten Ausgangsanschluss 24a verbunden. Der zweite Schalter 32a weist einen "Change-Over"-Kontakt auf. Der "Change-Over"-Kontakt des zweiten Schalters 32a ist mit dem zweiten Eingangsanschluss 16a verbunden. Der zweite Schalter 32a weist einen "Normally-Opened"-Kontakt und einen "Normally-Closed"-Kontakt auf. Der "Normally-Opened"-Kontakt des zweiten Schalters 32a ist mit dem zweiten Ausgangsanschluss 24a verbunden. Der "Normally-Closed"-Kontakt des zweiten Schalters 32a ist freistehend, insbesondere anschlusslos.The configuration unit 12a has a switch 30a and a second switch 32a. As an alternative to designing the configuration unit with two switches, a configuration with exactly one switch is conceivable (cf. 3 and 4 ). 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.

Die Konfigurationseinheit 12a weist ein Überbrückungselement 34a und ein zweites Überbrückungselement 36a auf. Das Überbrückungselement 34a verbindet unabhängig von einer Schaltstellung der Schalter 30a, 32a den ersten Eingangsanschluss 14a und den zweiten Ausgangsanschluss 24a miteinander. Unabhängig von einer Schaltstellung der Schalter 30a, 32a weist die Konfigurationseinheit 12a eine elektrisch leitfähige Verbindung zwischen dem ersten Wechselrichter 18a und dem zweiten Ausgangsanschluss 24a auf. Die elektrisch leitfähige Verbindung zwischen dem ersten Wechselrichter 18a und dem zweiten Ausgangsanschluss 24a ist durch das erste Überbrückungselement 34a gebildet. Das zweite Überbrückungselement 36a verbindet unabhängig von einer Schaltstellung der Schalter 30a, 32a den zweiten Eingangsanschluss 16a und den ersten Ausgangsanschluss 22a miteinander. Die Konfigurationseinheit 12a weist unabhängig von einer Schaltstellung der Schalter 30a, 32a eine elektrisch leitfähige Verbindung zwischen dem zweiten Wechselrichter 20a und dem ersten Ausgangsanschluss 22a auf. Hierbei ist die elektrisch leitfähige Verbindung zwischen dem zweiten Wechselrichter 20a und dem ersten Ausgangsanschluss 22a durch das zweite Überbrückungselement 36a gebildet.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. Here, the electrically conductive connection between the second inverter 20a and the first output connection 22a is formed by the second bridging element 36a.

In dem Betriebszustand ist die Konfigurationseinheit 12a dazu vorgesehen, die Wechselrichter 18a, 20a parallel an einer Gruppe der Heizelemente 26a, 28a zu betreiben. Beispielsweise könnte die Konfigurationseinheit 12a eine Schaltstellung des Schalters 30a von dem "Normally-Closed"-Kontakt in den "Normally-Opened"-Kontakt schalten, wodurch die Wechselrichter 18a, 20a parallel an den Heizelementen 28a betrieben sind. Alternativ könnte die Konfigurationseinheit 12a eine Schaltstellung des zweiten Schalters 32a von dem "Normally-Closed"-Kontakt in den "Normally-Opened"-Kontakt schalten, wodurch die Wechselrichter 18a, 20a parallel an den Heizelementen 26a betrieben sind. Der Betriebszustand, in welchem die Wechselrichter 18a, 20a gemeinsam parallel an einer Gruppe der Heizelemente 26a, 28a betrieben sind, ist als Boostmodus bezeichnet. In einem weiteren Betriebsmodus ist denkbar, die erste Gruppe der Heizelemente 26a an dem zweiten Wechselrichter 20a zu betreiben. Ebenfalls möglich ist, in dem weiteren Betriebsmodus die zweite Gruppe der Heizelemente 28a an dem ersten Wechselrichter 18a zu betreiben.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. For example, 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. Alternatively, 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. 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.

Die Kochfeldvorrichtung 10a umfasst eine Schalteinheit 38a, die zwischen der Konfigurationseinheit 12a und den Heizelementen 26a, 28a geschalten ist. Die Schalteinheit 38a weist zwei Eingangsanschlüsse 56a, 58a auf. Ein erster Eingangsanschluss 56a der Eingangsanschlüsse 56a 58a der Schalteinheit 38a ist mit dem zweiten Ausgangsanschluss 24a der Konfigurationseinheit 12a verbunden. Ein zweiter Eingangsanschluss 58a der Eingangsanschlüsse 56a 58a der Schalteinheit 38a ist mit dem ersten Ausgangsanschluss 22a der Konfigurationseinheit 12a verbunden. Die Schalteinheit 38a weist mehrere Ausgangsanschlüsse 60a auf. Eine Anzahl an Ausgangsanschlüssen 60a der Schalteinheit 38a ist im Wesentlichen gleich einer Anzahl an Heizelementen 26a, 28a.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.

Die Schalteinheit 38a weist mehrere weitere Schalter 40a, 42a auf, die jeweils dazu vorgesehen sind, eines der Heizelemente 26a, 28a einzeln mit der Konfigurationseinheit 12a zu verbinden. Die weiteren Schalter 40a, 42a sind in zwei Gruppen unterteilt. Hierbei weist eine erste Gruppe die weiteren Schalter 40a auf, die der ersten Gruppe der Heizelemente 26a zugeordnet sind. Jeweils ein weiterer Schalter 40a der ersten Gruppe ist mit einem Heizelement 26a der ersten Gruppe verbunden und dazu vorgesehen, das jeweilige Heizelement 26a einzeln mit der Konfigurationseinheit 12a zu verbinden. Eine zweite Gruppe weist die weiteren Schalter 42a auf, die der zweiten Gruppe der Heizelemente 28a zugeordnet sind. Jeweils ein weiterer Schalter 42a der zweiten Gruppe ist mit einem Heizelement 28a der zweiten Gruppe verbunden und dazu vorgesehen, das jeweilige Heizelement 28a einzeln mit der Konfigurationseinheit 12a zu verbinden.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. Here, a first group has the further switches 40a, which are assigned to the first group of heating elements 26a. In each case 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. In each case 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.

Die Kochfeldvorrichtung 10a umfasst mehrere Resonanzkapazitäten 62a. Jede Resonanzkapazität 62a ist einem der Heizelemente 26a, 28a zugeordnet. Eine Anzahl an Resonanzkapazitäten 62a ist im Wesentlichen gleich wie eine Anzahl an Heizelementen 26a, 28a. Alternativ ist denkbar, dass die Kochfeldvorrichtung genau eine Resonanzkapazität pro Gruppe an Heizelementen aufweist, wobei die Kochfeldvorrichtung im vorliegenden Ausführungsbeispiel insbesondere zwei Resonanzkapazitäten aufweisen könnte, die jeweils einer Gruppe an Heizelementen zugeordnet sein könnten. Im vorliegenden Ausführungsbeispiel weist jede Resonanzkapazität 62a zwei Kondensatoren auf. Alternativ sind Ausgestaltungen mit einer unterschiedlichen Anzahl an Kondensatoren denkbar.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. Alternatively, it is conceivable that 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. In the present exemplary embodiment, each resonance capacitance 62a has two capacitors. Alternatively, configurations with a different number of capacitors are conceivable.

In Fig. 5 bis 13 sind weitere Ausführungsbeispiele der Erfindung gezeigt. Die nachfolgenden Beschreibungen beschränken sich im Wesentlichen auf die Unterschiede zwischen den Ausführungsbeispielen, wobei bezüglich gleich bleibender Bauteile, Merkmale und Funktionen auf die Beschreibung der Ausführungsbeispiele der Fig. 1 bis 4 verwiesen werden kann. Zur Unterscheidung der Ausführungsbeispiele ist der Buchstabe a in den Bezugszeichen der Ausführungsbeispiele in den Fig. 1 bis 4 durch den Buchstaben b in den Bezugszeichen der Ausführungsbeispiele der Fig. 5 bis 13 ersetzt. Bezüglich gleich bezeichneter Bauteile, insbesondere in Bezug auf Bauteile mit gleichen Bezugszeichen, kann grundsätzlich auch auf die Zeichnungen und/oder die Beschreibung der Ausführungsbeispiele der Fig. 1 bis 4 verwiesen werden.In 5 to 13 further exemplary embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the exemplary embodiments, with the components, features and functions remaining the same as in the description of the exemplary embodiments in FIG 1 to 4 can be referred. To distinguish the exemplary embodiments, the letter a is in the reference numerals of the exemplary embodiments in the 1 to 4 by the letter b in the reference numerals of the embodiments of the 5 to 13 replaced. With regard to components with the same designation, in particular with respect to components with the same reference symbols, it is also possible in principle to refer to the drawings and / or the description of the exemplary embodiments in 1 to 4 to get expelled.

Fig. 5 zeigt eine Kochfeldvorrichtung 10b, die als Induktionskochfeldvorrichtung ausgebildet ist, eines Kochfelds, das als Induktionskochfeld ausgebildet ist. Die Kochfeldvorrichtung 10b umfasst eine Konfigurationseinheit 12b, die zwei Eingangsanschlüsse 14b, 16b aufweist. Die Eingangsanschlüsse 14b, 16b sind jeweils zu einer Verbindung mit einem Wechselrichter 18b, 20b der Kochfeldvorrichtung 10b vorgesehen. Zudem weist die Konfigurationseinheit 12b zwei Ausgangsanschlüsse 22b, 24b auf. Ein erster Ausgangsanschluss 22b der Ausgangsanschlüsse 22b, 24b ist zu einer Verbindung mit Heizelementen 26b der Kochfeldvorrichtung 10b vorgesehen. Ein zweiter Ausgangsanschluss 22b der Ausgangsanschlüsse 22b, 24b ist zu einer Verbindung mit Heizelementen 28b der Kochfeldvorrichtung 10b vorgesehen. 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. In addition, 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.

Ein Schalter 30b der Kochfeldvorrichtung 10b ist mit einem ersten Eingangsanschluss 14b der Eingangsanschlüsse 14b, 16b und dem ersten Ausgangsanschluss 22b verbunden. Ein "Normally-Opened"-Kontakt des Schalters 30a ist mit dem ersten Ausgangsanschluss 22b verbunden. Der Schalter 30b ist zusätzlich mit dem zweiten Ausgangsanschluss 24b verbunden. Ein "Normally-Closed"-Kontakt des Schalters 30b ist mit dem zweiten Ausgangsanschluss 22b verbunden. Beispielsweise könnte die Konfigurationseinheit genau den einen Schalter aufweisen (vgl. Fig. 6), wobei auf weitere Schalter, insbesondere auf einen zweiten Schalter, verzichtet werden könnte. Vorzugsweise weist die Konfigurationseinheit 12b jedoch einen zweiten Schalter 32b auf (vgl. Fig. 5), der mit dem zweiten Eingangsanschluss 16b und dem zweiten Ausgangsanschluss 24b verbunden ist. Ein "Normally-Opened"-Kontakt des zweiten Schalters 32b ist mit dem zweiten Ausgangsanschluss 24b verbunden. Der zweite Schalter 32b ist zusätzlich mit dem ersten Ausgangsanschluss 22b verbunden. Ein "Normally-Closed"-Kontakt des zweiten Schalters 32a ist mit dem ersten Ausgangsanschluss 22b verbunden. Wie in Fig. 7 gezeigt, könnte die Konfigurationseinheit genau den einen zweiten Schalter aufweisen, wobei auf den Schalter verzichtet werden könnte.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. For example, the configuration unit could have exactly one switch (cf. Fig. 6 ), whereby further switches, in particular a second switch, could be dispensed with. However, 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. As in Fig. 7 shown, the configuration unit could have exactly one second switch, it being possible to dispense with the switch.

Die Konfigurationseinheit 12b weist ein Überbrückungselement 34b auf, das unabhängig von einer Schaltstellung der Schalter 30b, 32b den ersten Eingangsanschluss 14b und den zweiten Ausgangsanschluss 24b miteinander verbindet. Hierbei überbrückt das Überbrückungselement 34b den "Normally-Closed"-Kontakt des Schalters 30b. Die Konfigurationseinheit 12b weist ein zweites Überbrückungselement 36b auf, das unabhängig von einer Schaltstellung der Schalter 30b, 32b den zweiten Eingangsanschluss 16b und den ersten Ausgangsanschluss 22b miteinander verbindet. Das zweite Überbrückungselement 34b überbrückt den "Normally-Closed"-Kontakt des zweiten Schalters 32b.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. Here, 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.

Eine Schalteinheit 38b der Kochfeldvorrichtung 10b ist zwischen der Konfigurationseinheit 12b und den Heizelementen 26b, 28b geschalten und weist mehrere weitere Schalter 40b, 42b auf. Die jeweils weiteren Schalter 40b, 42b sind dazu vorgesehen, eines der Heizelemente 26b, 28b einzeln mit der Konfigurationseinheit 12b zu verbinden. Die weiteren Schalter 40b, 42b sind als Wechselschalter ausgebildet (vgl. Fig. 5). Die weiteren Schalter 30b, 32b sind als Relais ausgebildet. Jeder weitere Schalter 40b, 42b weist einen "Change-Over"-Kontakt, einen "Normally-Opened"-Kontakt und einen "Normally-Closed"-Kontakt auf. Im vorliegenden Ausführungsbeispiel ist der "Change-Over"-Kontakt der weiteren Schalter 40b, 42b jeweils an einer der Konfigurationseinheit 12b abgewandten Seite der weiteren Schalter 40b, 42b angeordnet. Jeder "Change-Over"-Kontakt der weiteren Schalter 40b, 42b ist mit einem der Heizelemente 26b, 28b verbunden. Jeder weitere Schalter 40b, 42b ist über den "Normally-Opened"-Kontakt mit der Konfigurationseinheit 12b verbunden. Alternativ ist denkbar, dass jeder weitere Schalter 40b, 42b über den "Normally-Closed"-Kontakt mit der Konfigurationseinheit 12b verbunden ist-wie dies beispielsweise in Fig. 8 gezeigt ist.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. In the present exemplary embodiment, 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. Alternatively, it is conceivable that 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.

In weiteren alternativen Anordnungen der weiteren Schalter 40b, 42b ist denkbar, dass der "Change-Over"-Kontakt der weiteren Schalter 40b, 42b mit der Konfigurationseinheit 12b verbunden ist (vgl. Fig. 9 und 10). Hierbei könnte jeder weitere Schalter 40b, 42b über den "Normally-Opened"-Kontakt mit einem der Heizelemente 26b, 28b verbunden sein (vgl. Fig. 9). Wie in Fig. 10 dargestellt, könnte jedoch auch jeder weitere Schalter 40b, 42b über den "Normally-Closed"-Kontakt mit einem der Heizelemente 26b, 28b verbunden sein.In further alternative arrangements of the further switches 40b, 42b, it is conceivable that the "change-over" contact of the further switches 40b, 42b is connected to the configuration unit 12b (cf. Fig. 9 and 10th ). Each further switch 40b, 42b could be connected to one of the heating elements 26b, 28b via the "normally open" contact (cf. Fig. 9 ). As in Fig. 10 However, each further switch 40b, 42b could also be connected to one of the heating elements 26b, 28b via the "normally closed" contact.

Alternativ zu einer Ausbildung der weiteren Schalter 40b, 42b als Wechselschalter ist denkbar, dass die weiteren Schalter 40b, 42b als Einschalter ausgebildet sind (vgl. Fig. 11 und 12). Hierbei könnte jeder weitere Schalter 40b, 42b einen "Change-Over"-Kontakt und einen "Normally-Opened"-Kontakt aufweisen. Ebenfalls denkbar ist, dass jeder weitere Schalter 40b, 42b einen "Change-Over"-Kontakt und einen "Normally-Closed"-Kontakt aufweist (nicht dargestellt). Wie in Fig. 11 gezeigt, könnte jeder weitere Schalter 40b, 42b über den "Normally-Opened"-Kontakt mit der Konfigurationseinheit 12b verbunden sein. Hierbei wäre jeder weitere Schalter 40b, 42b über den "Change-Over"-Kontakt mit einem der Heizelemente 26b, 28b verbunden. Alternativ hierzu könnte jeder weitere Schalter 40b, 42b über den "Normally-Opened"-Kontakt mit einem der Heizelemente 26b, 28b verbunden sein (vgl. Fig. 12). Dabei könnte jeder weitere Schalter 40b, 42b über den "Change-Over"-Kontakt mit der Konfigurationseinheit 12b verbunden sein.As an alternative to designing the further switches 40b, 42b as changeover switches, it is conceivable that the further switches 40b, 42b are designed as on-switches (cf. Fig. 11 and 12th ). In this case, each further switch 40b, 42b could have a "change-over" contact and a "normally-open" contact. It is also conceivable that each further switch 40b, 42b has a "change-over" contact and a "normally closed" contact (not shown). As in Fig. 11 As shown, each further switch 40b, 42b could be connected to the configuration unit 12b via the "normally open" contact. In this case, each further switch 40b, 42b would be connected to one of the heating elements 26b, 28b via the "change-over" contact. Alternatively, 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.

Weiterhin ist denkbar, dass eine Schaltstellung der Konfigurationseinheit 12b und eine Schaltstellung der Schalteinheit 38b aneinander gekoppelt sind. Dies soll am Beispiel von Fig. 5 erläutert werden. Beispielsweise könnte eine Schaltstellung der "Normally-Closed"-Kontakte der weiteren Schalter 40a, 42a an eine Schaltstellung der "Normally-Opened"-Kontakte der Schalter 30b, 32b der Konfigurationseinheit 12b gekoppelt sein. Hierbei wäre für den Fall, dass der "Change-Over"-Kontakt und der "Normally-Opened"-Kontakt des Schalters 30a miteinander verbunden sind, bei jedem weiteren Schalter 40a der ersten Gruppe der "Change-Over"-Kontakt mit dem "Normally-Closed"-Kontakt verbunden. Im vorliegenden Ausführungsbeispiel sind die Konfigurationseinheit 12b und die Schalteinheit 38b jedoch unabhängig voneinander ausgebildet. Insbesondere sind Schaltstellungen der Konfigurationseinheit 12b und Schaltstellungen der Schalteinheit 38b unabhängig voneinander einstellbar.It is also conceivable that 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. For example, 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. In this case, in the event that the "change-over" contact and the "normally-open" contact of the switch 30a are connected to one another, the "change-over" contact with the " Normally closed "contact connected. In the present exemplary embodiment, however, the configuration unit 12b and the switching unit 38b are designed independently of one another. In particular, switching positions of the configuration unit 12b and switching positions of the switching unit 38b can be set independently of one another.

Mittels der Schalter 30b, 32b ist die Konfigurationseinheit 12b in einem Betriebszustand dazu vorgesehen, die Wechselrichter 18b, 20b parallel an einer Gruppe der Heizelemente 26b, 28b zu betreiben. Hierbei ist denkbar, dass die Konfigurationseinheit 12b in dem Betriebsmodus die Wechselrichter 18b, 20b parallel an genau einem Heizelement 26b, 28b einer Gruppe der Heizelemente 26b, 28b betreibt. Alternativ könnte die Konfigurationseinheit 12b in dem Betriebsmodus die Wechselrichter 18b, 20b parallel an mehreren und/oder allen Heizelementen 26b, 28b einer Gruppe der Heizelemente 26b, 28b betreiben. Zudem ist denkbar, dass die Konfigurationseinheit 12b in einem weiteren Betriebsmodus jeden der Wechselrichter 18b, 20b an einer der Gruppen von Heizelementen 26b, 28b betreibt, wobei ein Großteil und vorteilhaft alle Heizelemente 26b, 28b gemeinsam in Betrieb sind.In one operating state, 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.

Die Kochfeldvorrichtung 10b umfasst mehrere Resonanzkapazitäten 62b. Jede Resonanzkapazität 62b weist Kondensatoren auf. Alternativ sind Ausgestaltungen mit einer unterschiedlichen Anzahl an Kondensatoren denkbar. Jede Resonanzkapazität 62b ist einem der Heizelemente 26b, 28b zugeordnet, wobei eine Anzahl an Resonanzkapazitäten 62b im Wesentlichen gleich ist wie eine Anzahl an Heizelementen 26b, 28b. Wie in Fig. 13 dargestellt ist alternativ denkbar, dass die Kochfeldvorrichtung 10b genau eine Resonanzkapazität 62b pro Gruppe an Heizelementen 26b, 28b aufweist. Hierbei könnte die Kochfeldvorrichtung 10b insbesondere zwei Resonanzkapazitäten 62b aufweisen, die jeweils einer Gruppe an Heizelementen 26b, 28b zugeordnet sein könnten.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. As in Fig. 13 it is alternatively conceivable that the cooktop device 10b has exactly one resonance capacitance 62b per group of heating elements 26b, 28b. Here, 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.

Alternativ zu einer Ausgestaltung mit zwei Wechselrichtern sind Ausgestaltungen mit einer anderen Anzahl an Wechselrichtern möglich, insbesondere mit mehr als zwei Wechselrichtern, die jeweils mit dem Gleichrichter verbunden sein könnten. Hierbei würde eine Anzahl an Schaltern der Konfigurationseinheit entsprechend angepasst, wobei insbesondere ein Algorithmus zu einer Berechnung einer minimal benötigten Anzahl an Schaltern verwendet werden könnte.As an alternative to a configuration with two inverters, configurations with a different number of inverters are possible, in particular with more than two inverters, which could each be connected to the rectifier. In this case, 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.

BezugszeichenReference numerals

1010th
KochfeldvorrichtungHob device
1212
KonfigurationseinheitConfiguration unit
1414
Erster EingangsanschlussFirst input port
1616
Zweiter EingangsanschlussSecond input port
1818th
WechselrichterInverter
2020th
WechselrichterInverter
2222
Erster AusgangsanschlussFirst output connector
2424th
Zweiter AusgangsanschlussSecond output connector
2626
HeizelementHeating element
2828
HeizelementHeating element
3030th
Schaltercounter
3232
Schaltercounter
3434
ÜberbrückungselementBridging element
3636
ÜberbrückungselementBridging element
3838
SchalteinheitSwitching unit
4040
Weiterer SchalterAnother switch
4242
Weiterer SchalterAnother switch
4444
KochfeldCooktop
4646
KochfeldplatteCooktop
4848
BedieneinheitControl unit
5050
SteuereinheitControl unit
5252
GleichrichterRectifier
5454
Phasephase
5656
Erster EingangsanschlussFirst input port
5858
Zweiter EingangsanschlussSecond input port
6060
AusgangsanschlussOutput connector
6262
ResonanzkapazitätResonance capacity

Claims (9)

  1. Hob device, having at least one configuration unit (12a-b) which has at least two input connections (14a-b, 16a-b) which are each provided for connection to at least one inverter (18a-b, 20a-b), at least two output connections (22a-b, 24a-b) which are each provided for connection to at least one heating element (26a-b, 28a-b), and at least one switch (30a-b) which is connected to a first input connection (14a-b) of the at least two input connections (14a-b, 16a-b) and at least to one first output connection (22a-b) of the at least two output connections (22a-b, 24a-b), and which is provided for this purpose to operate the at least two inverters (18a-b, 20a-b) in at least one operating state in parallel to at least one of the at least two heating elements (26a-b, 28a-b), characterised in that the at least one configuration unit (12a-b) has at least one bridging element (34a-b) which is provided, regardless of a switching position of the at least one switch, to connect the first input connection (14a-b) and a second output connection (24a-b) of the at least two output connections (22a-b, 24a-b) to each other and to bridge a normally closed contact of the at least one switch (30b).
  2. Hob device according to claim 1, characterised in that the at least one switch (30b) is additionally connected to the second output connection (24b).
  3. Hob device according to one of the preceding claims, characterised in that the at least one configuration unit (12a-b) has at least one second switch (32a-b) which is connected to a second input connection (16a-b) of the at least two input connections (14a-b, 16a-b) and at least to the second output connection (24a-b).
  4. Hob device according to claim 3, characterised in that the at least one second switch (32b) is additionally connected to the first output connection (22b).
  5. Hob device according to one of the preceding claims, characterised in that the at least one configuration unit (12a-b) has at least one second bridging element (36a-b) which is provided to connect a second input connection (16a-b) of the at least two input connections (14a-b, 16a-b) and the first output connection (22a-b) to each other.
  6. Hob device according to claims 3 and 5, characterised in that the at least one second bridging element (36b) is provided for bridging a normally closed contact of the at least one second switch (32b).
  7. Hob device according to one of the preceding claims, characterised by a switching unit (38a-b) which is connected between the at least one configuration unit (12a-b) and the at least two heating elements (26a-b, 28a-b).
  8. Hob device according to claim 7, characterised in that the switching unit (38a-b) has at least two further switches (40a-b, 42a-b), each of which is provided to connect one of the at least two heating elements (26a-b, 28a-b) individually to the configuration unit (12a-b).
  9. Hob having at least one hob device (10a-b) according to one of claims 1 to 8
EP14830884.4A 2013-12-20 2014-12-17 Hob apparatus Active EP3085201B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201331877A ES2538605B1 (en) 2013-12-20 2013-12-20 Cooking Field Device
PCT/IB2014/067014 WO2015092704A1 (en) 2013-12-20 2014-12-17 Hob apparatus

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EP3085201A1 EP3085201A1 (en) 2016-10-26
EP3085201B1 true EP3085201B1 (en) 2020-05-13

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WO (1) WO2015092704A1 (en)

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

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