EP2506671B1 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

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Publication number
EP2506671B1
EP2506671B1 EP12160770.9A EP12160770A EP2506671B1 EP 2506671 B1 EP2506671 B1 EP 2506671B1 EP 12160770 A EP12160770 A EP 12160770A EP 2506671 B1 EP2506671 B1 EP 2506671B1
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EP
European Patent Office
Prior art keywords
heating
power supply
unit
units
heat sink
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
EP12160770.9A
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German (de)
English (en)
Other versions
EP2506671A3 (fr
EP2506671A2 (fr
Inventor
Daniel Anton Falcon
Ramon Peinado Adiego
Carmelo Pina Gadea
Diego Puyal Puente
Julio Rivera Peman
Miguel Angel BUÑUEL MAGDALENA
Jose-Ramon Garcia Jimenez
Jose Andres Garcia Martinez
Ignacio Garde Aranda
Pablo Jesus Hernandez Blasco
Sergio Llorente Gil
Alfonso Lorente Perez
David Ortiz Sainz
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BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2506671A2 publication Critical patent/EP2506671A2/fr
Publication of EP2506671A3 publication Critical patent/EP2506671A3/fr
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1263—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using coil cooling arrangements

Definitions

  • the invention relates to a circuit device according to the preamble of claim 1.
  • WO 2010/069616 A1 a circuit device of an induction cooktop is known, which is provided for connection to two conductors of a power supply network and to an outer conductor and a neutral conductor.
  • the circuit device comprises two heating frequency units for supplying four independent heating units with high-frequency alternating current.
  • document EP 2 028 912 A2 discloses a cooker assembly in which a plurality of heating frequency units are in thermal contact with a common heat sink.
  • the object of the invention is in particular to provide a low-cost generic circuit device with an advantageously low weight. The object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.
  • the invention is based on a circuit device which is provided for connection to at most two conductors of a power supply network, with at least two heating frequency units for the power supply of at least three independent heating units.
  • the circuit device has at most a one-piece heat sink, with which the at least two heating frequency units are thermally contacted.
  • provided is intended to be understood in particular specifically designed and / or equipped and / or programmed.
  • a “conductor of a power supply network” is to be understood in particular as meaning either an outer conductor or a neutral conductor of different design, in particular of a pure protective conductor.
  • circuit device to a connection to at most two conductors of a power supply network is intended ", is to be understood in particular that the circuit device is designed such that an operation is possible either only on exactly one outer conductor and exactly one neutral conductor or only on exactly two outer conductors of a power supply network
  • a circuit device which on more than two conductors operable is, in particular at least two outer conductors and at least one neutral conductor, but is operated only on two conductors of a power supply network to be provided in particular for a connection to at least two conductors of a power supply network.
  • heating frequency unit is to be understood in particular as meaning an electrical unit which generates an oscillating electrical current, preferably with a frequency of at least 15 kHz, in particular of at least 17 kHz and advantageously of at least 20 kHz, for operation of the at least three heating units.
  • the heating frequency unit comprises in particular at least one inverter, which preferably comprises two switching units.
  • a "switching unit” is to be understood in particular as meaning a unit which is intended to interrupt a conduction path comprising at least part of the switching unit in one of at least two switching positions.
  • a “conduction path” is to be understood in particular as an electrically conductive connection unit between two points.
  • the term "electrically conductive" is to be understood in particular with a specific electrical resistance of at most 10 -4 ⁇ m, in particular of at most 10 -5 ⁇ m, advantageously of at most 10 -6 ⁇ m and particularly advantageously of not more than 10 -7 ⁇ m at 20 ° C.
  • the switching unit is a bidirectional unipolar switch which in particular allows a current flow through the switch along the conduction path in both directions and in particular short-circuits an electrical voltage in at least one polarity direction.
  • the inverter comprises at least two bipolar transistors with insulated gate electrode and particularly advantageously at least one damping capacitor.
  • heating unit is to be understood, in particular, as a unit which is intended to convert electrical energy, at least to a large extent, into heat and thus in particular to heat a food.
  • the heating unit comprises a radiant heater, a resistance heater and / or preferably an induction heater, which is intended to convert electrical energy indirectly via induced eddy currents into heat.
  • at least three independent heating units should be understood in particular heating units, which are traversed in at least one operating state of electric currents of different RMS current.
  • a "heat sink” is to be understood in particular as a unit which is designed specifically for cooling further components, in particular the at least one heating frequency unit, and is in particular in thermal and preferably in direct mechanical contact with these components.
  • the heat sink has in particular an at least 5-fold, in particular at least 10-fold, and advantageously at least 20-fold greater surface area than a cube of the same volume and in particular comprises at least 3 and preferably at least 5 cooling fins.
  • a “cooling fin” an elongated, in particular wall or rod-shaped, component made of a thermally conductive material, which is connected at least at one point with a main body of the heat sink, in particular in one piece.
  • a “main body of the heat sink” is to be understood in particular a component made of a heat-conducting material which has at least one surface which is in thermal contact and preferably in direct mechanical contact with a component to be cooled.
  • the entire heat sink consists of a heat-conducting material and in particular has a plate-shaped base body, from the cooling fins, preferably only on one side of the body go out.
  • the heat sink may be designed specifically for heat transfer to an air flow flowing along at least one of the surfaces of the heat sink and preferably have air flow passages through which an air flow is led to cool the heat sink.
  • in one piece is meant, in particular, at least materially bonded, for example by a welding process and / or an adhesive process and / or an injection process and / or another process that appears appropriate to a person skilled in the art, and / or advantageously shaped in one piece, as for example by a production from a casting and / or by a production in a one- or multi-component injection molding process and advantageously from a single blank.
  • the heat sink is provided for cooling the at least two Schufrequenzüen and is in particular thermally contacted with these.
  • the heat sink and at least one further component are "thermally contacted” should be understood in particular that the heat sink and the further component can exchange heat energy in an assembled state and that preferably a heat transfer coefficient of this exchange is greater than a heat transfer coefficient of an exchange of heat energy between the heat sink and the further component via an air gap.
  • the heat sink and the further component are in direct mechanical contact and are in particular directly connected to one another at least in a partial area and are preferably firmly connected to each other so that at least 60%, in particular at least 70%, particularly advantageously at least 80% and particularly advantageously at least 90 % of the heat energy is transferred via a solid state contact point or several solid state contact points.
  • the circuit device Since the circuit device is provided for connection to only two conductors of a power supply network, two heating frequency units are sufficient for attaining a maximum power obtainable from the two conductors. It has been found in cooking appliances, especially cooktops, that the maximum of two conductors, in particular an outer conductor and a neutral conductor of a power supply network available power for everyday operation of the cooking appliance is sufficient. Only in the rarest cases does a heater requested by an operator exceed the maximum available power from the power grid. Therefore, despite a reduction to two heating frequency units and a connection to only two conductors of a power supply network, an advantageously high ease of use can be achieved.
  • the circuit device has at most one cooling fan for cooling the heat sink. As a result, costs can be reduced particularly advantageous. Furthermore, in at least one operating state, an energy requirement can be reduced.
  • the circuit device comprises a power module which has the at least two heating frequency units and the heat sink.
  • An “assembly” is to be understood, in particular, as an assembly unit having a plurality of components which are intended to be preassembled into a unit in order in particular to be mounted as a whole in a further unit.
  • the assembly is a printed circuit board populated with electronic components.
  • a “power assembly” is to be understood in particular an assembly that is intended to at least supply three heating units with electrical power and preferably make an adjustment of the electrical power of the at least three heating units.
  • the power module preferably performs a frequency conversion in at least one operating state and, in particular, converts an input-side low-frequency AC voltage into an output-side high-frequency AC voltage.
  • a "low-frequency AC voltage” is to be understood as meaning an AC voltage having a frequency of at most 100 Hz.
  • a “high-frequency AC voltage” is to be understood as meaning an AC voltage having a frequency of at least 1000 Hz.
  • the power module is provided to make the setting of the electrical power of the at least three heating units, at least by adjusting the high-frequency AC voltage.
  • the power assembly further comprises at least one rectifier.
  • the circuit device has a filter assembly which is provided for connection to the at most two conductors of the power supply network.
  • a "filter assembly” is to be understood in particular as meaning an assembly which, in at least one operating state, adopts at least one filter function, preferably a low-pass filter function for minimizing high-frequency noise.
  • the filter assembly additionally assumes an overvoltage protection function, preferably by means of a varistor.
  • the filter assembly comprises in particular at least one throttle, in particular a current-compensated throttle, and / or at least one capacitor and / or at least one varistor.
  • the filter assembly is viewed in terms of line technology between a connection to the power supply network and the rectifier.
  • the filter assembly is provided to filter the power assembly.
  • the filter assembly is designed such that operation either only on exactly one outer conductor and exactly one neutral conductor or only on exactly two outer conductors a power supply network is possible.
  • a filter assembly which is operable on more than two conductors, in particular on two outer conductors and a neutral conductor, but is operated only on two conductors of a power supply network, should be provided in particular for connection to at least two conductors of a power supply network.
  • an assembly effort can be advantageously reduced.
  • costs can be reduced because a commercially available filter assembly can be used.
  • the circuit device has at most two equipotential bonding paths between the filter assembly and the power assembly, which are provided for transmitting at least a majority of the energy from the filter assembly to the at least three heating units.
  • An “equipotential connection path” is to be understood as meaning, in particular, an entirety of all the line paths with at least substantially the same potential between two subassemblies, in particular between the filter subassembly and the power subassembly.
  • a "totality of all conduction paths with at least substantially the same potential” comprises in particular all conduction paths whose electrical potentials differ from each other by at most 10%, preferably by a maximum of 5% and particularly advantageously by at most 2%.
  • a “potential difference” should be understood in particular a difference between two potentials.
  • a “potential of an equipotential connection path” at a time should in particular be understood to mean a spatially averaged potential of the equipotential connection path at this time.
  • Transmission of at least a majority of the energy from the filter assembly to the at least three heating units should be understood in particular that in any operating condition in which at least one of the at least three heating units is operated by the at most two equipotential bonding paths each a current of the same RMS current wherein a product of the RMS current and an RMS value of a potential difference between the at most two equipotential bonding paths minus a power supplied to other consumers other than the operated heating units is at most 20%, preferably at most 10%, and most preferably at most
  • time-averaged heating power" of an operated heating unit is intended to mean, in particular, a product made from one of the heating units operated by the heating medium Heating unit flowing RMS amperage and applied to the heating unit RMS voltage can be understood. As a result, an assembly effort can be advantageously reduced.
  • the power module has exactly two rectified equipotential busbars, between which in at least one operating state a supply voltage for the at least three heating units is tapped.
  • An “equipotential busbar” is to be understood as meaning, in particular, an entirety of all the conduction paths with at least substantially the same electrical potential.
  • the term “two rectified equipotential busbars” is intended in particular to mean two equipotential busbars with a potential difference of their potentials, which has the same sign for each time point.
  • a “potential of an equipotential busbar" at one time should, in particular, be understood to mean a spatially averaged potential of the equipotential busbar at this point in time.
  • the circuit device and preferably the power module of the circuit device, comprises precisely one rectifier, preferably a bridge rectifier, which, in at least one operating state, rectifies the potential difference of the equipotential connection paths and provides a rectified voltage between the equipotential bus bars.
  • a bridge rectifier which, in at least one operating state, rectifies the potential difference of the equipotential connection paths and provides a rectified voltage between the equipotential bus bars.
  • the circuit device comprises a switching arrangement which is provided to selectively connect at least one of the at least two heating frequency units to at least one of the at least three heating units.
  • a "switching arrangement" is to be understood in particular as meaning a unit which has at least one input and at least two outputs and which is intended to connect the input in at least one operating state optionally to at least one of the at least two outputs in an electrically conductive manner, in particular by a corresponding one Switching position of at least one switching unit and / or a switching unit.
  • a number of inputs of the switching arrangement corresponds to a number of heating frequency units of the switching device.
  • a number of outputs of the switching arrangement corresponds to a number of heating units.
  • a "switching unit” is to be understood in particular as a switching unit which forms a first conduction path in a first of at least two switching positions, in particular of the at least one input to one of the at least two outputs, and in a second of the at least two switching positions a second conduction path first conduction path different conduction path, in particular from the at least one input to the other of the at least two outputs forms.
  • any switchover unit which appears expedient to a person skilled in the art can be considered, but preferably an electromagnetic relay and / or a semiconductor relay.
  • the switching arrangement is part of the power assembly.
  • the switching arrangement is provided to "at least one of the at least two Wienrequenzajien selectively connect to at least one of the at least three heating units," should be understood in particular that the switching device is provided depending on an operating condition to one or more Walkerfrequenzajien with a or electrically connect a plurality of heating units.
  • costs can be reduced particularly advantageous since a number of heating frequency units can be smaller than a number of heating units.
  • new modes of operation can be developed, in particular if two heating frequency units collectively power a single heating unit in parallel.
  • the circuit device comprises exactly one power supply unit, which is provided at least for the power supply of a control unit.
  • the power supply unit is provided in addition to the power supply of at least one driver unit of the at least two heating frequency units and / or an operator interface and / or at least one measuring unit, in particular a temperature and / or voltage and / or current measuring unit, and / or the cooling fan.
  • a "power supply unit” is to be understood, in particular, as an electronic unit which is intended to supply at least one further unit with energy which requires a voltage other than that provided by a power supply network.
  • a DC voltage is provided at at least one output of the power supply unit.
  • the power supply unit has a plurality of outputs, on which, in particular, different electrical voltages, preferably direct voltages, can be tapped off.
  • the power supply unit is part of the power module.
  • a "control unit” is to be understood as meaning, in particular, an electronic unit which comprises a computing unit and, in particular in addition to the computing unit, a memory unit with a control program stored therein.
  • the control unit is preferably provided at least for controlling and / or regulating the at least one heating frequency unit with the aid of control signals.
  • the control unit is part of the power module.
  • a cooking appliance in particular a hob, proposed with a circuit device according to the invention.
  • the hob is an induction hob.
  • FIG. 1 shows a trained as induction hob 50a cooking appliance.
  • the induction hob 50a comprises a hob plate 52a, in particular of a glass ceramic, on which heating zones 54a, 56a, 58a, 60a are marked in a known manner.
  • the cooktop panel 52a is horizontally disposed in an operative state of the induction cooktop 50a and provided for setting up cooking utensils.
  • touch-sensitive operating elements 62a and display elements 64a of an operator interface 66a of the induction hob 50a are marked on the hob plate 52a in a known manner.
  • the induction hob 50a further comprises a circuit device having four independent heating units 14a, 16a, 18a, 20a designed as inductor coils (cf. FIG. 2 ).
  • the Heating unit 14a is disposed below the heating zone 54a.
  • the heating unit 16a is disposed below the heating zone 56a.
  • the heating unit 18a is disposed below the heating zone 58a.
  • FIG. 2 shows a schematic block diagram of the circuit device of the induction hob 50a.
  • the induction hob 50a and in particular the circuit device are provided for connection to exactly two conductors 28a, 29a of a power supply network 26a.
  • the two conductors 28a, 29a are an outer conductor 68a and a neutral conductor 70a of the power supply network 26a.
  • the induction hob 50a and in particular the circuit device comprise exactly one filter unit 72a.
  • a voltage applied between the outer conductor 68a and the neutral conductor 70a electrical AC voltage, which has an effective value of approximately 230 V in Europe, is supplied to the filter unit 72a.
  • the filter unit 72a is designed as a separate filter assembly 10a of the circuit device in the form of a printed circuit board equipped with electronic components.
  • the filter assembly 10a is provided for connection to the two conductors 28a, 29a of the power supply network 26a.
  • the filter unit 72a is essentially a low-pass filter that eliminates high-frequency noise in at least one operating state.
  • the induction hob 50a and in particular the circuit device further comprise exactly one power assembly 12a formed as a populated printed circuit board.
  • the power module 12a comprises exactly one rectifier 48a, exactly one bus capacitor unit 74a of one or more interconnected bus capacitors, exactly two heating frequency units 34a, exactly one switching arrangement 36a, exactly one power supply unit 38a, exactly one control unit 40a and exactly one integral heat sink 44a.
  • the heat sink 44a is made of aluminum.
  • the two Schufrequenzüen 34a and rectifier diodes of the rectifier 48a are thermally contacted with the heat sink 44a by gluing.
  • the induction hob 50a and in particular the circuit device comprise exactly one cooling fan 46a, which is intended to cool the heat sink 44a by means of a cooling air flow.
  • the induction hob 50a includes exactly two equipotential bonding paths 22a, 24a electrically connecting the filter assembly 10a and the power assembly 12a.
  • all the energy transferred from the filter assembly 10a to the heating units 14a, 16a, 18a, 20a is transferred via the equipotential connection paths 22a, 24a.
  • the filter unit 72a and the rectifier 48a are electrically conductively connected to each other via the equipotential connection paths 22a, 24a.
  • the filter unit 72a and an input of the power supply unit 38a are electrically conductively connected to each other via the equipotential connection paths 22a, 24a.
  • the rectifier 48a rectifies the AC electrical voltage from the power supply network 26a and provides it as a rectified bus voltage for the heating units 14a, 16a, 18a, 20a between exactly two rectified equipotential bus bars 30a, 32a of the power assembly 12a. Between the equipotential bus bars 30a, 32a, the bus capacitor unit 74a is arranged.
  • the two heating frequency units 34a grip this rectified bus voltage at the two equipotential current rails 30a, 32a in at least one operating state.
  • the heating frequency units 34a each comprise an inverter, which generates in a known manner from the rectified bus voltage a high-frequency alternating voltage with a frequency of at least 15 kHz for operation of the heating units 14a, 16a, 18a, 20a. Outputs of the two heating frequency units 34a are connected via the switching arrangement 36a to the heating units 14a, 16a, 18a, 20a.
  • the switching arrangement 36a allows an assignment of one of the heating frequency units 34a to one or more of the heating units 14a, 16a, 18a, 20a. Further, the switching arrangement 36a allows the two heating-frequency units 34a to be associated with one of the heating units 14a, 16a, 18a, 20a for increasing the power during a warm-up.
  • the switching arrangement 36a is intended to perform time division multiplexing.
  • one of the heating frequency units 34a is allocated during a first subinterval of a period of a first group of heating units 14a, 16a, 18a, 20a and during a second subinterval of the period duration of a second, of the first group differently formed by the first subinterval assigned differently formed group of heating units 14a, 16a, 18a, 20a.
  • the switching arrangement 36a comprises six electromagnetic relays. Alternatively, the electromagnetic relays may be replaced by solid state relays. Alternatively or additionally, the switching arrangement 36a can also allow a simultaneous allocation of the two heating-frequency units 34a to a plurality of heating units 14a, 16a, 18a, 20a.
  • heating units 14a, 16a, 18a, 20a are thus supplied with energy in a known manner.
  • the heating units 14a, 16a, 18a, 20a are in FIG. 2 only shown schematically, wherein a representation of the heating units 14a, 16a, 18a, 20a associated resonance capacitors was omitted.
  • the power supply unit 38a is provided to transform and rectify the AC voltage of the power supply network 26a.
  • the power supply unit 38a has a plurality of outputs at which different DC voltages are provided for supplying further electrical consumers in at least one operating state.
  • the power supply unit 38a is at least provided to power the control unit 40a.
  • the control unit 40a includes a microprocessor and is provided for controlling the induction hob 50a and, in particular, components of the circuit device as shown in FIG FIG. 2 schematically represented by dashed lines.
  • the power supply unit 38a is provided to power the user interface 66a, driver units of the two heating frequency units 34a, temperature, voltage and current measuring units and the cooling fan 46a (not shown in FIG FIG. 2 ).
  • the power supply unit 38a can be used to supply power to further, be provided to a professional appear reasonable consumer. All outputs of the power supply unit 38a have a common reference potential 42a, which corresponds to a potential of the equipotential current rail 32a.
  • the circuit device can be decisively simplified, since, for example, otherwise necessary potential separations can be dispensed with.
  • FIG. 3 a further embodiment of the invention is shown.
  • the following description is essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the other embodiment, in particular the Figures 1 and 2 , can be referenced.
  • the letter a in the reference numerals of the embodiment in the Figures 1 and 2 by the letter b in the reference numerals of the embodiment of FIG. 3 replaced.
  • With respect to identically designated components in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the embodiment of Figures 1 and 2 to get expelled.
  • FIG. 3 shows a schematic block diagram of another circuit device of an induction hob 50b.
  • the induction hob 50b and in particular the circuit device are also provided for connection to exactly two conductors 28b, 29b of a power supply network 26b.
  • the two conductors 28b, 29b are two outer conductors 68b, 69b of the three-phase power supply network 26b.
  • an electrical alternating voltage applied between the outer conductors 68b, 69b which in Europe has an effective value of approximately 400 V, is fed to a corresponding filter assembly 10b.
  • the basic structure of the induction hob 50b and the associated circuit device is identical to the basic structure of the previous embodiment.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Claims (9)

  1. Appareil de cuisson, en particulier table de cuisson, comprenant un dispositif de circuit qui est prévu, c'est-à-dire spécialement conçu et/ou équipé et/ou programmé, pour être connecté à au maximum deux conducteurs (28a, 29a ; 28b, 29b) d'un réseau d'alimentation électrique (26a ; 26b) et qui comprend au moins deux unités de fréquence de chauffe (34a ; 34b) pour l'alimentation en énergie d'au moins trois unités de chauffe (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b) indépendantes, caractérisé en ce que le dispositif de circuit comprend au maximum un dissipateur de chaleur (44a ; 44b) monobloc, avec lequel lesdites au moins deux unités de fréquence de chauffe (34a ; 34b) sont en contact thermique, un seul dissipateur de chaleur (44a ; 44b) étant utilisé.
  2. Appareil de cuisson selon la revendication 1, caractérisé en ce que le dispositif de circuit comprend exactement un ventilateur de refroidissement (46a ; 46b) pour le refroidissement du dissipateur de chaleur (44a ; 44b).
  3. Appareil de cuisson selon la revendication 1 ou 2, caractérisé en ce que le dispositif de circuit comprend un module de puissance (12a ; 12b) qui comprend lesdites au moins deux unités de fréquence de chauffe (34a ; 34b) et le dissipateur de chaleur (44a ; 44b).
  4. Appareil de cuisson selon une des revendications précédentes, caractérisé en ce que le dispositif de circuit comprend un module de filtrage (10a ; 10b) prévu pour être connecté auxdits au moins deux conducteurs (28a, 29a ; 28b, 29b) du réseau d'alimentation électrique (26a ; 26b).
  5. Appareil de cuisson selon les revendications 3 et 4, caractérisé en ce que le dispositif de circuit comprend au maximum deux chemins de liaison équipotentielle (22a, 24a ; 22b, 24b) entre le module de filtrage (10a ; 10b) et le module de puissance (12a ; 12b), qui sont prévus pour transmettre au moins une grande partie de l'énergie du module de filtrage (10a ; 10b) auxdits au moins trois unités de chauffe (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b).
  6. Appareil de cuisson selon la revendication 4 ou 5, caractérisé en ce que le module de puissance (12a ; 12b) comprend exactement deux barres conductrices équipotentielles (30a, 32a ; 30b, 32b) redressées, entre lesquelles est prélevée, dans au moins un état de fonctionnement, une tension d'alimentation pour lesdites au moins trois unités de chauffe (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b).
  7. Appareil de cuisson selon une des revendications précédentes, caractérisé en ce que le dispositif de circuit comprend un dispositif de commutation (36a ; 36b), prévu pour connecter au moins une desdites au moins deux unités de fréquence de chauffe (34a ; 34b) au choix à au moins une desdites au moins trois unités de chauffe (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b).
  8. Appareil de cuisson selon une des revendications précédentes, caractérisé en ce que le dispositif de circuit comprend exactement une unité d'alimentation électrique (38a, 38b), prévu au moins pour l'alimentation en énergie d'une unité de commande (40a ; 40b).
  9. Appareil de cuisson selon la revendication 8, caractérisé en ce que toutes les sorties de ladite unité d'alimentation électrique (38a ; 38b) n'ont qu'un seul potentiel de référence (42a ; 42b).
EP12160770.9A 2011-03-29 2012-03-22 Dispositif de commutation Active EP2506671B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201130477 2011-03-29

Publications (3)

Publication Number Publication Date
EP2506671A2 EP2506671A2 (fr) 2012-10-03
EP2506671A3 EP2506671A3 (fr) 2013-02-13
EP2506671B1 true EP2506671B1 (fr) 2017-09-13

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11856656B2 (en) * 2016-12-23 2023-12-26 BSH Hausgeräte GmbH Cooking appliance

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Publication number Priority date Publication date Assignee Title
EP3024300B1 (fr) 2013-09-05 2017-08-30 Electrolux Appliances Aktiebolag Table de cuisson par induction comprenant une zone de cuisson avec trois ou plusieurs bobines d'induction et procédé permettant de commander une zone de cuisson
EP3478026B1 (fr) * 2017-10-25 2021-06-30 Electrolux Appliances Aktiebolag Table de cuisson par induction comprenant un filtre d'interférence électromagnétique
EP4215021A1 (fr) * 2020-09-18 2023-07-26 BSH Hausgeräte GmbH Dispositif pour appareil de cuisson à induction

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DE4208249A1 (de) 1992-03-14 1993-09-16 Ego Elektro Blanc & Fischer Induktive kochstellenbeheizung und verfahren zu ihrem betrieb
DE10017175A1 (de) 1999-04-09 2000-11-30 Jaeger Regulation Chartres Hochfrequenzstrom gespeistes Heiz/Kochelement und sein Herstellungsverfahren
US20020170905A1 (en) 2001-04-03 2002-11-21 Peterson Gregory A. Heat sink for printed circuit board components
EP1445544A1 (fr) 2003-02-08 2004-08-11 Electrolux Home Products Corporation N.V. Plaque de cuisson en particulier à induction
DE10017176B4 (de) 1999-04-09 2005-03-03 Jaeger Régulation Induktionskochplatte mit von Generatoren gespeisten Induktionsheizelementen
WO2006092179A1 (fr) 2005-03-01 2006-09-08 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffe pour un appareil de cuisson a induction
WO2008061908A1 (fr) 2006-11-21 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Circuit de dispositif chauffant
WO2008064993A1 (fr) 2006-11-28 2008-06-05 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage
EP1931177A1 (fr) 2006-12-04 2008-06-11 BSH Bosch und Siemens Hausgeräte GmbH Circuit de dispositif de chauffage
EP2028912A2 (fr) 2007-08-24 2009-02-25 BSH Bosch und Siemens Hausgeräte GmbH Agencement de dispositif de cuisson
WO2010069616A1 (fr) 2008-12-19 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Table de cuisson avec au moins trois zones de cuisson
US20100219179A1 (en) 2009-03-02 2010-09-02 Delta Electronics, Inc. Electrical apparatus and air circulating system having such electrical apparatus
WO2011051856A1 (fr) 2009-10-26 2011-05-05 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson à au moins deux résistances, et dispositif électronique de puissance
WO2011086506A2 (fr) 2010-01-18 2011-07-21 BSH Bosch und Siemens Hausgeräte GmbH Appareil électroménager
EP2506669A2 (fr) 2011-03-29 2012-10-03 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commutation

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JP2007234623A (ja) * 2003-03-25 2007-09-13 Mitsubishi Electric Corp 電磁調理器
ES2366511B1 (es) * 2009-05-11 2012-10-09 Bsh Electrodomésticos España, S.A. Campo de cocción con un elemento de puente.
EP2292979B1 (fr) * 2009-09-03 2016-10-12 BSH Hausgeräte GmbH Dispositif de refroidissement pour un champ de cuisson à induction

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Publication number Priority date Publication date Assignee Title
DE4208249A1 (de) 1992-03-14 1993-09-16 Ego Elektro Blanc & Fischer Induktive kochstellenbeheizung und verfahren zu ihrem betrieb
DE10017175A1 (de) 1999-04-09 2000-11-30 Jaeger Regulation Chartres Hochfrequenzstrom gespeistes Heiz/Kochelement und sein Herstellungsverfahren
DE10017176B4 (de) 1999-04-09 2005-03-03 Jaeger Régulation Induktionskochplatte mit von Generatoren gespeisten Induktionsheizelementen
US20020170905A1 (en) 2001-04-03 2002-11-21 Peterson Gregory A. Heat sink for printed circuit board components
EP1445544A1 (fr) 2003-02-08 2004-08-11 Electrolux Home Products Corporation N.V. Plaque de cuisson en particulier à induction
WO2006092179A1 (fr) 2005-03-01 2006-09-08 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffe pour un appareil de cuisson a induction
WO2008061908A1 (fr) 2006-11-21 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Circuit de dispositif chauffant
WO2008064993A1 (fr) 2006-11-28 2008-06-05 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de chauffage
EP1931177A1 (fr) 2006-12-04 2008-06-11 BSH Bosch und Siemens Hausgeräte GmbH Circuit de dispositif de chauffage
EP2028912A2 (fr) 2007-08-24 2009-02-25 BSH Bosch und Siemens Hausgeräte GmbH Agencement de dispositif de cuisson
WO2010069616A1 (fr) 2008-12-19 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Table de cuisson avec au moins trois zones de cuisson
US20100219179A1 (en) 2009-03-02 2010-09-02 Delta Electronics, Inc. Electrical apparatus and air circulating system having such electrical apparatus
WO2011051856A1 (fr) 2009-10-26 2011-05-05 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson à au moins deux résistances, et dispositif électronique de puissance
WO2011086506A2 (fr) 2010-01-18 2011-07-21 BSH Bosch und Siemens Hausgeräte GmbH Appareil électroménager
EP2506669A2 (fr) 2011-03-29 2012-10-03 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commutation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11856656B2 (en) * 2016-12-23 2023-12-26 BSH Hausgeräte GmbH Cooking appliance

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ES2643136T3 (es) 2017-11-21
EP2506671A2 (fr) 2012-10-03

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