EP2506669B2 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

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Publication number
EP2506669B2
EP2506669B2 EP12160496.1A EP12160496A EP2506669B2 EP 2506669 B2 EP2506669 B2 EP 2506669B2 EP 12160496 A EP12160496 A EP 12160496A EP 2506669 B2 EP2506669 B2 EP 2506669B2
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EP
European Patent Office
Prior art keywords
heating
power supply
unit
units
power
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
EP12160496.1A
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German (de)
English (en)
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EP2506669A3 (fr
EP2506669A2 (fr
EP2506669B1 (fr
Inventor
Daniel Anton Falcon
Alfonso Lorente Perez
David Ortiz Sainz
Oscar Pallares Zaera
Jose Joaquin Paricio Azcona
Ramon Peinado Adiego
Carmelo Pina Gadea
Diego Puyal Puente
Julio Rivera Peman
Miguel Angel BUÑUEL MAGDALENA
David Cros Querol
Diego Cuartielles Ruiz
Jose-Ramon Garcia Jimenez
Jose Andres Garcia Martinez
Ignacio Garde Aranda
Pablo Jesus Hernandez Blasco
Sergio Llorente Gil
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2506669A2 publication Critical patent/EP2506669A2/fr
Publication of EP2506669A3 publication Critical patent/EP2506669A3/fr
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Publication of EP2506669B1 publication Critical patent/EP2506669B1/fr
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils

Definitions

  • the invention is based on a circuit device according to the preamble of claim 1.
  • Circuit devices for induction hobs which include two heating frequency units for supplying three or four independent induction heating units with high-frequency alternating current.
  • the object of the invention is, in particular, to provide a cost-effective generic circuit device which is advantageously easy to implement.
  • the object is achieved according to the invention by the features of patent claim 1, while advantageous refinements and developments of the invention can be found in the subclaims.
  • the invention is based on a circuit device with at least two heating frequency units for supplying energy to at least three independent heating units.
  • the circuit device comprises a power supply unit whose outputs only have a single reference potential.
  • the term “intended” is intended to mean, in particular, specifically designed and/or equipped and/or programmed.
  • a “heating frequency unit” is to be understood in particular as 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 operating the at least three heating units.
  • the heating frequency unit in particular comprises at least one inverter, which preferably comprises two switching units.
  • a “switching unit” is to be understood in particular as a unit which is intended to interrupt a line path comprising at least part of the switching unit in one of at least two switching positions.
  • a “line path” is to be understood in particular as an electrically conductive connection unit between two points.
  • “Electrically conductive” is to be understood in particular as having a specific electrical resistance of at most 10 -4 ⁇ m, in particular at most 10 -5 ⁇ m, advantageously at most 10 -6 ⁇ m and particularly advantageously at most 10 -7 ⁇ m at 20 ° C.
  • the switching unit is a bidirectional unipolar switch, which in particular enables current to flow through the switch along the line path in both directions and which, in particular, short-circuits an electrical voltage in at least one polarity direction.
  • the inverter preferably comprises at least two bipolar transistors with insulated gate electrodes and particularly advantageously at least one damping capacitor.
  • heating unit is intended to mean, in particular, a unit that is intended to convert at least a large part of electrical energy into heat and thus in particular to heat a food item to be cooked.
  • the heating unit comprises a radiant heater, a resistance heater and/or preferably an induction heater, which is intended to convert electrical energy into heat indirectly via induced eddy currents.
  • At least three independent heating units should be understood to mean, in particular, heating units through which electrical currents of different effective current flow in at least one operating state.
  • a “power supply unit” is intended to mean, in particular, an electronic unit that is intended to supply energy to at least one further unit that requires a voltage other than a voltage provided by a power supply network. In at least one operating state, a direct voltage is provided at at least one output of the power supply unit.
  • the power supply unit has several outputs from which different DC voltages can be tapped.
  • the power supply unit is part of a power module.
  • the power supply unit is for supplying energy to at least one control unit and/or 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 at least a cooling fan is provided.
  • control unit is to be understood in particular as an electronic unit which comprises a computing unit and, in particular, in addition to the computing unit, a storage unit with a control program stored therein.
  • control unit is at least intended to control and/or regulate the at least one heating frequency unit with the aid of control signals.
  • the control unit is preferably part of the power assembly.
  • a cost-effective circuit device can be provided, which is particularly advantageously easy to implement.
  • potential isolation can be dispensed with.
  • the circuit device is advantageously provided for connection to a maximum of two conductors of a power supply network.
  • a “conductor of a power supply network” should in particular be understood to mean either an external conductor or a neutral conductor, in particular a neutral conductor which is designed differently from a pure protective conductor.
  • the fact that the circuit device is "intended to be connected to a maximum of two conductors of a power supply network” should be understood in particular to mean that the circuit device is designed in such a way that operation is possible either only on exactly one external conductor and exactly one neutral conductor or only on exactly two external conductors of a power supply network is possible.
  • a switching device that can be operated on more than two conductors, in particular on at least two external conductors and at least one neutral conductor, but only on two conductors of a power supply network, should in particular be provided for a connection to at least two conductors of a power supply network.
  • By connecting to a maximum of two conductors of a power supply network further cost savings can be achieved because a filter assembly, the control unit and the power supply unit can be optimized accordingly.
  • the circuit device has exactly two heating frequency units, a particularly cost-effective circuit device can be provided. Since the circuit device is intended to be connected to only two conductors of a power supply network, two heating frequency units are sufficient to achieve a maximum power that can be obtained from the two conductors.
  • the circuit device comprises a power assembly which has the at least two heating frequency units and the power supply unit.
  • An “assembly” is intended to mean, in particular, an assembly unit with several components that are intended to be pre-assembled into a unit, in particular to be assembled as a whole into a further unit.
  • the assembly is a printed circuit board equipped with electronic components.
  • a “power assembly” is intended to mean, in particular, an assembly that is intended to supply the at least three heating units with electrical power and preferably to adjust the electrical power of the at least three heating units.
  • the power module preferably carries out a frequency conversion in at least one operating state and in particular converts a low-frequency alternating voltage on the input side into a high-frequency alternating voltage on the output side.
  • a “low-frequency alternating voltage” should be understood to mean an alternating voltage with a frequency of at most 100 Hz.
  • a “high-frequency alternating voltage” should be understood to mean an alternating voltage with a frequency of at least 1000 Hz.
  • the power assembly is preferably intended to adjust the electrical power of the at least three heating units at least by adjusting the high-frequency alternating voltage.
  • the power assembly further comprises at least one rectifier.
  • assembly effort can be advantageously reduced, since pre-assembly of the power module can take place.
  • advantageous electronic and thermal properties can be achieved when power electronic components are combined in a power assembly.
  • advantageous cooling of the power electronic components, in particular the rectifier and the at least two heating frequency units can be achieved.
  • the circuit device comprises a filter assembly which is intended for connection to a maximum of two conductors of a power supply network.
  • a “filter assembly” is to be understood in particular as an assembly which, in at least one operating state, takes on at least one filter function, preferably a low-pass filter function to minimize high-frequency noise.
  • the filter assembly also takes on an overvoltage protection function, preferably by means of a varistor.
  • the filter assembly in particular comprises at least one choke, in particular a current-compensated choke, and/or at least one capacitor and/or at least one varistor.
  • the filter assembly is preferably arranged between a connection to the power supply network and the rectifier.
  • the filter assembly is preferably intended to carry out filtering of the power assembly.
  • the fact that "the filter assembly is intended to be connected to a maximum of two conductors of a power supply network" should be understood in particular to mean that the filter assembly is designed in such a way that operation is possible either only on exactly one external conductor and exactly one neutral conductor or only on exactly two external conductors of a power supply network is possible.
  • a filter assembly which can be operated on more than two conductors, in particular on two external conductors and one external conductor and a neutral conductor, but is only operated on two conductors of a power supply network, should in particular be provided for connection to at least two conductors of a power supply network. As a result, assembly effort can be advantageously reduced. Furthermore, costs can be reduced because a commercially available filter assembly can be used.
  • the circuit device advantageously has at most two equipotential connection paths between the filter assembly and the power assembly, which are provided for transmitting at least a large part of the energy from the filter assembly to the at least three heating units.
  • An “equipotential connection path” is intended to mean, in particular, a totality of all line paths with at least essentially the same potential between two assemblies, in particular between the filter assembly and the power assembly.
  • a "totality of all line paths with at least essentially the same potential” includes in particular all line paths whose electrical potentials differ from one another at any time by a maximum of 10%, preferably by a maximum of 5% and particularly advantageously a maximum of 2%.
  • a “potential difference” is to be understood in particular as a difference between two potentials.
  • a “potential of an equipotential connection path” at a point in time is intended to mean, in particular, a spatially averaged potential of the equipotential connection path at this point in time.
  • the fact that the maximum two equipotential connection paths "are provided for the transmission of at least a large part of the energy from the filter assembly to the at least three heating units" should be understood in particular to mean that in any operating state in which at least one of the at least three heating units is operated A current of the same effective current flows through the maximum two equipotential connection paths, whereby a product of the effective current and an effective value of a potential difference between the maximum two equipotential connection paths, minus a power which is supplied to other consumers different from the heating units operated, is at most 20%, preferably differs by a maximum of 10% and particularly advantageously by a maximum of 5% from a sum of time-averaged heating outputs of the operated heating units.
  • a “time-averaged heating output” of an operated heating unit is to be understood in particular as a product of an
  • the filter assembly is provided for connection to two outer conductors of a power supply network. This allows a higher operating voltage to be achieved.
  • the power assembly has exactly two rectified equipotential busbars, between which a supply voltage for the at least three independent heating units is tapped in at least one operating state.
  • An “equipotential busbar” is intended to mean, in particular, a totality of all line paths with at least essentially the same electrical potential.
  • “Two rectified equipotential busbars” should be understood to mean, in particular, two equipotential busbars with a potential difference between their potentials, which has the same sign for every point in time.
  • a “potential of an equipotential busbar” at a point in time should be understood to mean, in particular, a spatially averaged potential of the equipotential busbar at that point in time.
  • the circuit device and preferably the power module of the circuit device comprises exactly one rectifier, preferably a bridge rectifier, which in at least one operating state carries out a rectification of the potential difference of the equipotential connection paths and provides a rectified voltage between the equipotential busbars.
  • a bridge rectifier which in at least one operating state carries out a rectification of the potential difference of the equipotential connection paths and provides a rectified voltage between the equipotential busbars.
  • the power assembly advantageously has a switching arrangement which is intended 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 a unit which has at least one input and at least two outputs and which is intended to electrically connect the input in at least one operating state to at least one of the at least two outputs, in particular by means of 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, in a first of at least two switching positions, forms a first line path, in particular from 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, from first line path forms a different line path, in particular from the at least one input to the other of the at least two outputs.
  • Any switching unit that appears useful to a person skilled in the art can be used as a switching unit, but preferably an electromagnetic relay and/or a semiconductor relay.
  • the switching arrangement is part of the power assembly.
  • the switching arrangement is intended 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" should be understood in particular to mean that the switching arrangement is intended, depending on an operating state, to connect one or more heating frequency units with one or several heating units to be electrically connected. In this way, costs can be reduced particularly advantageously, since a number of heating frequency units can be smaller than a number of heating units. Furthermore, new operating modes can be developed, especially when two heating frequency units work together to supply a single heating unit with energy in parallel.
  • the power assembly has at most one one-piece heat sink.
  • a “heat sink” is intended to mean, in particular, a unit that is specifically designed to cool 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 a surface area that is at least 5 times, in particular at least 10 times and advantageously at least 20 times larger than a cube of the same volume and in particular comprises at least 3 and preferably at least 5 cooling fins.
  • cooling fin there should be an elongated, especially wall or Rod-shaped, component made of a heat-conducting material can be understood, which is connected at least at one point to a base body of the heat sink, in particular in one piece.
  • a “base body of the heat sink” is intended to mean, in particular, a component made of a heat-conducting material that has at least one surface that is in thermal contact and preferably in direct mechanical contact with a component to be cooled.
  • the entire heat sink preferably consists of a heat-conducting material and in particular has a plate-shaped base body from which cooling fins extend, preferably only on one side of the base body.
  • the heat sink can be designed specifically for heat transfer to an air flow flowing along at least one of the surfaces of the heat sink and can preferably have air flow channels through which an air flow is guided to cool the heat sink.
  • a “heat-conducting material” is intended to mean, in particular, a material with a thermal conductivity of at least 5 W/m/K, in particular at least 15 W/m/K, advantageously at least 100 W/m/K and particularly advantageously at least 200 W/m/K become.
  • “In one piece” should in particular be understood to be at least materially connected, for example by a welding process and/or an adhesive process and/or a molding process and/or another process that appears sensible to a person skilled in the art, and/or advantageously be understood to be formed in one piece, such as, for example, through production from a single casting and/or through production in a single- or multi-component injection molding process and advantageously from a single blank.
  • the heat sink is preferably provided for cooling the at least two heating frequency units and is in particular thermally contacted with them.
  • the heat sink and at least one further component in particular a heating frequency unit, are "thermally contacted” should be understood in particular to mean 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 thermal energy between the heat sink and the other component via an air gap.
  • the heat sink and the further component are in direct mechanical contact and, in particular, lie directly against one another at least in a partial area and are preferably firmly connected to one another, so that at least 60%, in particular at least 70%, particularly advantageously at least 80% and particularly advantageously at least 90 % of the thermal energy is transferred via one solid-state contact point or several solid-state contact points. This can advantageously reduce costs because only one heat sink is used. Furthermore, weight can be advantageously reduced, which can also minimize transport costs.
  • the circuit device advantageously has at most one cooling fan, which is provided for cooling the one-piece heat sink. In this way, costs can be reduced particularly advantageously. Furthermore, energy requirements can be reduced in at least one operating state.
  • the hob is preferably an induction hob.
  • FIG 1 shows a cooking appliance designed as an induction hob 50a.
  • the induction hob 50a comprises a hob plate 52a, in particular made of a glass ceramic, on which heating zones 54a, 56a, 58a, 60a are marked in a known manner.
  • the hob plate 52a is arranged horizontally in an operational state of the induction hob 50a and is intended 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 with four independent heating units 14a, 16a, 18a, 20a designed as inductor coils (cf. Figure 2 ).
  • the heating unit 14a is arranged below the heating zone 54a.
  • the heating unit 16a is arranged below the heating zone 56a.
  • the heating unit 18a is arranged 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 intended to be connected to exactly two conductors 28a, 29a of a power supply network 26a.
  • the two conductors 28a, 29a are an external 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.
  • One between the external conductor 68a and the neutral conductor 70a, 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 circuit board equipped with electronic components.
  • the filter assembly 10a is intended to be connected 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.
  • a structure of the filter unit 72a for example, refer to the international application WO 2010/069616 A1 referred.
  • the induction hob 50a and in particular the circuit device also comprise exactly one power assembly 12a designed as a populated circuit board.
  • the power assembly 12a includes exactly one rectifier 48a, exactly one bus capacitor unit 74a made 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 one-piece heat sink 44a.
  • the heat sink 44a is made of aluminum.
  • the two heating frequency units 34a and rectifier diodes of the rectifier 48a are thermally contacted with the heat sink 44a by adhesive bonding.
  • 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 and in particular the circuit device comprise exactly two equipotential connection paths 22a, 24a, which connect the filter assembly 10a and the power assembly 12a to one another in an electrically conductive manner.
  • all of the energy transmitted from the filter assembly 10a to the heating units 14a, 16a, 18a, 20a is transmitted via the equipotential connection paths 22a, 24a.
  • the filter unit 72a and the rectifier 48a are electrically conductively connected to one another 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 one another via the equipotential connection paths 22a, 24a.
  • the rectifier 48a rectifies the electrical alternating 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 busbars 30a, 32a of the power module 12a.
  • the bus capacitor unit 74a is arranged between the equipotential busbars 30a, 32a.
  • the two heating frequency units 34a pick up this rectified bus voltage on the two equipotential busbars 30a, 32a in at least one operating state.
  • the heating frequency units 34a each include an inverter which, in a known manner, generates a high-frequency alternating voltage with a frequency of at least 15 kHz from the rectified bus voltage for operation of the heating units 14a, 16a, 18a, 20a. Outputs of the two heating frequency units 34a are connected to the heating units 14a, 16a, 18a, 20a via the switching arrangement 36a.
  • the switching arrangement 36a allows one of the heating frequency units 34a to be assigned to one or more of the heating units 14a, 16a, 18a, 20a. Furthermore, the switching arrangement 36a allows both heating frequency units 34a to be assigned to one of the heating units 14a, 16a, 18a, 20a in order to increase performance during a parboiling process.
  • the switching arrangement 36a is intended to carry out a time division multiplex operation.
  • one of the heating frequency units 34a is assigned to a period duration of a first group of heating units 14a, 16a, 18a, 20a during a first subinterval of a period and to a second group of the first group during a second subinterval of the period duration, which is designed differently from the first subinterval assigned to differently designed groups of heating units 14a, 16a, 18a, 20a.
  • the switching arrangement 36a includes six electromagnetic relays. Alternatively, the electromagnetic relays can be replaced by solid-state relays. Alternatively or additionally, the switching arrangement 36a can also enable the two heating frequency units 34a to be assigned to several heating units 14a, 16a, 18a, 20a at the same time.
  • heating units 14a, 16a, 18a, 20a are thus supplied with energy in a known manner.
  • the heating units 14a, 16a, 18a, 20a are in Figure 2 only shown schematically, with no representation of the resonance capacitors assigned to the heating units 14a, 16a, 18a, 20a.
  • the power supply unit 38a is intended to transform and rectify the alternating voltage of the power supply network 26a.
  • the power supply unit 38a has several outputs at which different DC voltages are provided in at least one operating state to supply further electrical consumers.
  • the power supply unit 38a is at least intended to supply the control unit 40a with energy.
  • the control unit 40a comprises a microprocessor and is intended for controlling and regulating the induction hob 50a and in particular components of the circuit device, as in Figure 2 shown schematically by dashed lines.
  • the power supply unit 38a is intended to supply the operator interface 66a, driver units of the two heating frequency units 34a, temperature, voltage and current measuring units as well as the cooling fan 46a with energy (not shown in Figure 2 ).
  • the power supply unit 38a can be provided for supplying energy to further consumers that appear useful to a person skilled in the art. All outputs of the power supply unit 38a have a common reference potential 42a, which corresponds to a potential of the equipotential busbar 32a.
  • the circuit device can be significantly simplified, since, for example, potential isolation that would otherwise be necessary can be dispensed with.
  • FIG. 3 Another embodiment of the invention is shown.
  • the following description is essentially limited to the differences between the exemplary embodiments, with regard to the same components, features and functions being referred to the description of the other exemplary embodiment, in particular the Figures 1 and 2 , can be referenced.
  • the letter a is in the reference numerals of the exemplary embodiment in the Figures 1 and 2 by the letter b in the reference numbers of the exemplary embodiment Figure 3 replaced.
  • components with the same designation in particular with regard to components with the same reference numerals, one can in principle also refer to the drawings and/or the description of the exemplary embodiment 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 intended 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 present 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 exemplary embodiment.
  • the electronic components of the circuit device are simply adapted to the higher alternating voltage between the two conductors 28b, 29b of the power supply network 26b.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Eye Examination Apparatus (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)
  • General Induction Heating (AREA)

Claims (8)

  1. Dispositif de commutation avec au moins deux unités de fréquence de chauffe (34a ; 34b) pour l'alimentation en énergie d'au moins trois unités de chauffe indépendantes (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b), caractérisé par une unité d'alimentation en courant électrique (38a ; 38b) dont les sorties présentent un seul potentiel de référence (42a ; 42b) et par un module de puissance (12a ; 12b) qui présente les au moins deux unités de fréquence de chauffe (34a ; 34b) et l'unité d'alimentation en courant électrique (38a ; 38b), dans lequel le module de puissance (12a ; 12b), qui est un circuit imprimé équipé de composants électroniques, présente exactement deux barres conductrices équipotentielles redressées (30a, 32a ; 30b, 32b), entre lesquelles une tension d'alimentation pour les au moins trois unités de chauffe indépendantes (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b) est prélevée dans au moins un état de fonctionnement, dans lequel l'unité d'alimentation en courant électrique (38a) présente plusieurs sorties, auxquelles sont mis à disposition, dans au moins un état de fonctionnement, différents courants continus pour l'alimentation d'autres consommateurs électriques, et dans lequel toutes les sorties de l'unité d'alimentation en courant électrique (38a) présentent un potentiel de référence commun (42a), lequel correspond à un potentiel de l'une des barres conductrices équipotentielles (32a).
  2. Dispositif de commutation selon la revendication 1, caractérisé par un module de filtration (10a ; 10b) prévu au niveau d'un raccordement à au plus deux conducteurs (28a, 29a ; 28b, 29b) d'un réseau d'alimentation en courant électrique (26a ; 26b).
  3. Dispositif de commutation selon la revendication 2, caractérisé par au plus deux liaisons équipotentielles (22a, 24a ; 22b, 24b) entre le module de filtration (10a ; 10b) et le module de puissance (12a ; 12b), prévues afin de transmettre au moins une grande partie de l'énergie du module de filtration (10a ; 10b) vers les aux moins trois unités de chauffe (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b).
  4. Dispositif de commutation selon la revendication 2 ou 3, caractérisé en ce que le module de filtration (10b) est prévu au niveau d'un raccordement à deux conducteurs externes (68b, 69b) d'un réseau d'alimentation en courant électrique (26b).
  5. Dispositif de commutation selon l'une des revendications précédentes, caractérisé en ce que le module de puissance (12a ; 12b) présente un ensemble de commutation (36a ; 36b) prévue afin de relier l'au moins une unité de fréquence de chauffe (34a ; 34b) au choix avec au moins une des au moins trois unités de chauffe (14a, 16a, 18a, 20a ; 14b, 16b, 18b, 20b).
  6. Dispositif de commutation selon l'une des revendications précédentes, caractérisé en ce que le module de puissance (12a ; 12b) présente au plus un dissipateur thermique en une seule pièce (44a ; 44b).
  7. Dispositif de commutation selon la revendication 6, caractérisé par au plus un ventilateur de refroidissement (46a ; 46b) prévu afin de refroidir le dissipateur thermique en une seule pièce (44a ; 44b).
  8. Appareil de cuisson, en particulier champ de cuisson, avec un dispositif de commutation selon l'une des revendications précédentes.
EP12160496.1A 2011-03-29 2012-03-21 Dispositif de commutation Active EP2506669B2 (fr)

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Publication number Priority date Publication date Assignee Title
ES2643136T3 (es) 2011-03-29 2017-11-21 BSH Hausgeräte GmbH Dispositivo de conmutación
ES2673693B1 (es) * 2016-12-23 2019-04-09 Bsh Electrodomesticos Espana Sa Horno de coccion y procedimiento para el funcionamiento de un horno de coccion
EP3977815A1 (fr) * 2019-05-29 2022-04-06 BSH Hausgeräte GmbH Dispositif formant appareil de cuisson

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WO2008061908A1 (fr) † 2006-11-21 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Circuit de dispositif chauffant
EP2200400A1 (fr) † 2008-12-22 2010-06-23 FagorBrandt SAS Dispositif d'alimentation d'un appareil de cuisson

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FR2792157B1 (fr) 1999-04-09 2001-07-27 Jaeger Regulation Table de cuisson par induction comportant des foyers a induction alimentes par des generateurs
FR2839605B1 (fr) 2002-05-07 2004-09-10 Elka Module de cuisson electrique a induction et procede de commande du module
DE10314690A1 (de) 2003-03-27 2004-10-07 E.G.O. Elektro-Gerätebau GmbH Heizungseinrichtung für eine flächige Beheizung mit Induktions-Heizelementen
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EP1951003B2 (fr) 2007-01-23 2022-11-16 Whirlpool Corporation Procédé de commande d'induction d'une plaque de cuisson et d'induction d'une plaque de cuisson adaptée à un tel procédé
ES2323837B1 (es) 2007-06-21 2010-05-25 Bsh Electrodomesticos España, S.A. Circuito de dispositivo de coccion y procedimeinto para el calentamiento de un objeto.
ES2353890B1 (es) 2008-12-19 2012-01-26 Bsh Electrodomesticos España, S.A. Campo de cocción con al menos tres zonas de calentamiento.
EP2200398B1 (fr) 2008-12-22 2011-08-10 FagorBrandt SAS Procédé d'alimentation en puissance de deux inducteurs et appareil de cuisson mettant en oeuvre ledit procédé
DE102009018134A1 (de) 2009-04-15 2010-09-16 E.G.O. Elektro-Gerätebau GmbH Induktionsheizeinrichtung und Verfahren zum Betrieb einer Induktionsheizeinrichtung

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WO2008061908A1 (fr) † 2006-11-21 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Circuit de dispositif chauffant
EP2200400A1 (fr) † 2008-12-22 2010-06-23 FagorBrandt SAS Dispositif d'alimentation d'un appareil de cuisson

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ES2602489T3 (es) 2017-02-21
EP2506669A3 (fr) 2012-11-07
ES2602489T5 (es) 2024-04-30
EP2506669A2 (fr) 2012-10-03
EP2506669B1 (fr) 2016-10-12

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