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EP2034800B1 - Commutateur de dispositif de cuisson - Google Patents

Commutateur de dispositif de cuisson Download PDF

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Publication number
EP2034800B1
EP2034800B1 EP08104968.6A EP08104968A EP2034800B1 EP 2034800 B1 EP2034800 B1 EP 2034800B1 EP 08104968 A EP08104968 A EP 08104968A EP 2034800 B1 EP2034800 B1 EP 2034800B1
Authority
EP
European Patent Office
Prior art keywords
heating
unit
units
cooking device
group
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
EP08104968.6A
Other languages
German (de)
English (en)
Other versions
EP2034800A1 (fr
Inventor
Luis Angel Barragan Perez
Ignacio Garde Aranda
Pablo Jesus Hernandez Blasco
Sergio Llorente Gil
Denis Navarro Tabernero
Daniel Palacios Tomas
Ramon Peinado Adiego
Armando Roy Yarza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP2034800A1 publication Critical patent/EP2034800A1/fr
Application granted granted Critical
Publication of EP2034800B1 publication Critical patent/EP2034800B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food
    • H05B1/0266—Cooktops
    • 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
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • 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
    • 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
    • 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
    • H05B2213/05—Heating plates with pan detection means

Definitions

  • the invention is based on a cooking device circuit according to the preamble of claim 1.
  • a cooking apparatus comprising a cooking plate for laying a preparation utensil and a set of induction coils forming a contiguous cooking area of the cooking plate.
  • the heating of the preparation harness is carried out by means of a heating group of induction coils, which is formed depending on a selection position of the preparation dishes in the cooking area.
  • the object of the invention is, in particular, to provide a cooking device circuit for a generic cooking device with improved properties in terms of effective heating operation with a heating group.
  • the invention is based on a cooking device circuit having a plurality of heating units and a heating group formation unit, which is provided to form a heating group of heating units adapted to a selection position of a preparation tableware.
  • the cooking device circuit has a synchronization unit which is provided to synchronize at least two heating units with each other. It can thereby be an effective heating operation, which is carried out by means of the synchronized heating units, can be achieved.
  • a heating operation of a heating group formed by means of the heating group formation unit advantageously a time reference for the heating group can be created.
  • a "heating unit” is to be understood as meaning, in particular, a unit which is provided for the purpose of transmitting a heat energy to a preparation tableware.
  • the heating unit has at least one heating body, which may be e.g. is designed as an inductive heating means or as a radiation body.
  • a heating unit for transmitting the heating energy is expediently supplied with electric power by means of a power unit.
  • a “selection position” is to be understood, in particular, as a position of the preparation utensil that can be arbitrarily selected by an operator within a continuous cooking area for heating a preparation utensil.
  • a "cooking area for heating a cooking utensil” is to be understood in this context, in particular a range of cooking appliance, which is suitable for a cooking operation of the cooking utensil.
  • the cooking area preferably corresponds to a portion of a cooking plate of the cooking device, which is stretched by all the heating units.
  • the cooking area coherently constitutes a substantial part, in particular more than 50%, advantageously more than 75% and preferably more than 90% of the total surface the hotplate, which is suitable for a cooking operation, whereby a particularly high degree of flexibility in the choice of a cooking position of the cooking utensil can be achieved.
  • the cooking device circuit preferably has at least 10, advantageously at least 20 and preferably at least 40 heating units.
  • the heating group formation unit is provided in particular for forming the heating group of heating units for heating the preparation tableware in a selection position of the preparation tableware in the cooking area.
  • a position of the cooking utensil "in the cooking area" is to be understood in particular to mean a position of the cooking utensil relative to the cooking area in which the cooking utensil floor is arranged completely in the cooking area.
  • a "synchronization" of two heating units in this context should be understood in particular to mean a process in which a relative phase relationship between a periodic process, which is carried out with a first heating unit, and a periodic process, which is carried out with a second heating unit at least one time a desired value is assigned.
  • the Synchronization unit designed so that at the time the relative phase position reaches the zero value.
  • the periodic processes of the heating units are typically carried out each time by means of a timing unit. If a clocking unit for the first heating unit is independent of a clocking unit for the second heating unit, the synchronization unit can advantageously reduce a phase shift between the periodic processes, which can occur due to deviations in the timing of the various clocking units.
  • the heating units each have an inductive heating means, in a heating operation the heating units are preferably supplied with an alternating current, the synchronization unit preferably serving to set the relative phase position of two alternating currents for supplying the heating units to a predetermined value, in particular to zero to put.
  • the synchronization unit preferably serving to set the relative phase position of two alternating currents for supplying the heating units to a predetermined value, in particular to zero to put.
  • the synchronization unit is provided to synchronize heating units, in particular all heating units of a heating group formed, with each other, whereby in a heating operation of the heating group unwanted mutual disturbances of the heating units can be reduced.
  • the cooking device circuit comprises a plurality of heating modules, the heating modules each having at least one heating unit and each having a different heating module control unit for controlling the heating unit.
  • a structurally simple cooking device circuit can be achieved if the heating modules each have a heating module group of heating units and a respective different heating module control unit for controlling the heating module group.
  • a heating module preferably comprises in each case at least one power unit which is provided for supplying at least one heating unit with power.
  • a different power unit can be provided for each heating unit in a heating module.
  • the power unit preferably has an inverter with switching means, such as transistors, which provides by means of switching operations of the switching means in a known manner a heating power for the heating means.
  • the respective heating module control unit advantageously serves to control switching operations of at least one power unit.
  • the various heating modules with their respective heating module control unit are in particular each arranged on a different printed circuit board.
  • the respective heating module control unit and preferably power units for supplying power to the respective heating module group are advantageously arranged on a common printed circuit board.
  • the cooking device circuit has a total number of heating units, wherein the heating module groups in cooperation preferably form this total number.
  • a heating group formed by means of the heating group formation unit is typically composed of heating units that belong to different heating modules.
  • the synchronization unit has a timing unit which is designed differently from the heating modules.
  • a heating group is formed by means of the heating group formation unit
  • one of the heating module control units preferably serves as a heating group line unit which is provided for controlling a heating operation of the heating group.
  • Various heating module control units may be designed as a heating group line unit in various cooking operations of a cooking device.
  • two heating groups can be formed for simultaneously heating two preparation utensils, wherein the heating groups are preferably controlled by a different heating group conduction unit.
  • the synchronization unit has a clocking unit which is provided to supply the heating modules in parallel with a clocking signal, whereby a particularly fast supply of the heating modules can be achieved with the clocking signal, since the heating modules simultaneously supply the clocking signal can be.
  • a "parallel Supply” of two heating modules should be understood a supply in which for each heating module, an electrical connection of this heating module is made to a clocking means of the clocking unit, wherein the course of the electrical connection is formed differently from the other heating module.
  • the heating modules each have a Bankmodultakt nowadaysshim for generating a Bankmodultaktetcals for a control process of the heating module and the synchronization unit comprises a clocking unit for generating a timing signal for at least two different Schumodultakt stylessakuen, whereby a particularly simple design Kochvoriquessscnies can be achieved ,
  • the heating module timing units may be e.g. be designed as an internal clock. If the heating modules each have power units for generating power by means of switching operations, then the respective heating module clocking unit advantageously provides a time reference which is internal to the heating module and which can be used to carry out the switching operations. It is advantageous if the Bankmodultakt concernedsech a heating module is formed as part of the respective Schumoduleberichtmaschine.
  • the timing signal be used to synchronize at least two Wienmodultakt nowadaysshimen, whereby a favorable regular synchronization of internal to the various heating modules time references can be achieved.
  • the synchronization unit is provided to synchronize at least two heating units of different heating modules with each other, whereby significant phase shifts between heating units can be avoided.
  • Various Schumodultakt nowadayssakuen can particularly easily form the synchronization unit in cooperation with a heating modules superordinate clocking unit, by means of which heating units of different heating modules can be synchronized with each other.
  • the synchronization unit is intended to synchronize at least two heating units during a synchronization period.
  • This can be advantageous in contrast to one by means of an electrical pulse achieved synchronization process, a continuous transition to a synchronized operation of the heating units can be achieved, whereby unwanted interference frequencies can be avoided in the transition.
  • This can be achieved particularly easily if, in an operating mode, a heating unit serves to generate a heating signal with a heating frequency and the synchronization unit is provided to change the heating frequency during the synchronization period.
  • the synchronization unit has a timing unit which is provided to generate a timing signal in response to a mains power supply parameter, whereby a clocking can be achieved by simple means.
  • the mains power supply parameter can be designed as a mains voltage.
  • a particularly effective timing can be achieved if the clocking unit is intended to generate the clocking signal by means of a zero point of the mains power supply parameter. If the mains power supply characteristic is designed as a mains voltage, inrush pulses can advantageously be reduced by synchronization at a zero point of the mains voltage.
  • a "zero point" of a parameter may, in particular, be understood as an interval centered around a zero value of the parameter whose upper limit is in particular at most 10%, advantageously at most 5% and preferably at most 1% of the maximum amplitude of the parameter.
  • FIG. 1 shows a trained as an induction cooktop cooking device 10.
  • the cooking device 10 has a mounting frame 12 for attachment to a countertop, a cooking plate 14 for placing cookware and a control panel 16 for starting, stopping and setting a heating operation.
  • Two cooking utensils 18, 20 designed as a pot are arranged on the cooking plate 14, of which in each case a preparation dish bottom is represented schematically by a continuous circular line.
  • the arrangement of the radiator 24, which are shown schematically in the figure by a dashed rectangle, is designed as a matrix arrangement. This radiator 24 different columns and different rows are covered by the preparation dishes 18.
  • a group of 48 heating units 22, each with a radiator 24 is shown by way of example. Further embodiments of the cooking device 10 are each possible with a different number of heating units 22.
  • a heating signal H designed as a magnetic alternating field is generated by the corresponding heating element 24 (see FIG FIG. 2 ), which has a heating frequency f H.
  • the heating signal H induces electrical currents in the metallic bottom of the preparation harnesses 18, 20. These electrical currents heat up due to ohmic losses in the preparation dishes 18, 20 food.
  • a radiator 24 in operation of the corresponding heating unit 22 is supplied to generate the heating signal H with an alternating electrical current which oscillates at the heating frequency f H (see Figures 5 and 6 ).
  • To generate this alternating current are designed as an inverter power units 26 are provided which serve to supply the heating units 22 with electrical power. These power units 26 are in FIG. 2 shown.
  • a cooking device circuit 28 of the cooking device 10 is off FIG. 1 shown schematically.
  • the group of heating units 22 is subdivided into subgroups of a plurality of, in particular, six heating units 22.
  • Each subset of heating units 22 is each assigned a different control unit, which is provided for controlling the subgroup.
  • a subgroup forms a heating module 30 with the respective control unit.
  • a subgroup is referred to as a heating module group 32
  • the control unit that controls the subgroup is referred to as a heating module control unit 34.
  • the cooking device circuit 28 includes a plurality of heating modules 30.1, 30.2 to 30.8.
  • the heating modules 30 each have several, in particular six heating units 22, each comprising a designed as an induction coil radiator 24.
  • a heating unit 24 is assigned in each case a power unit 26 for supplying power to the heating unit 24.
  • the heating modules 30 further each have a plurality of sensor means 35 for pot detection, by means of which it can be detected whether the corresponding radiator 24 is covered by one of the preparation harnesses 18, 20 at least partially.
  • the heating module control units 34 are designed as microcontrollers and have a microprocessor, not shown.
  • the heating module control units 34 may be designed as DSP (Digital Signal Processor or Digital Signal Processing).
  • the power units 26 of a heating module 30 and the associated heating module control unit 34 are each mounted on a common printed circuit board 36.
  • the printed circuit boards 36.1 to 36.8, which are each assigned to a different heating module 30.1 or 30.8, are formed separately from each other.
  • the cooking device 10 thus has a number of different printed circuit boards 36, which corresponds to the number of heating modules 30. For the sake of clarity, only two heating modules 30.1, 30.2 with the corresponding circuit boards 36.1 and 36.2 have been illustrated in the figure.
  • the cooking device circuit 28 is further provided with a timing unit 38, the operation of which will be described in more detail below.
  • the clocking unit 38 has a clocking means 39 different from the heating module control units 34. It is with a mains power supply 40 on the one hand and connected to each of the heating modules 30 on the other. Furthermore, the clocking unit 38 has a clocking line 42, on which the clocking means 39 provides a clocking signal S and is branched off from the supply lines 44 to a respective one of the heating module control units 34.
  • the timing unit 38 having the timing means 39 and the timing line 42 is formed differently from the heater modules 30, and the timing signal S is distributed in parallel to the heater modules 30 by the timing unit 38.
  • the power units 26 are each designed as inverters.
  • a power unit 26 preferably comprises at least one pair of switching means 48, which are formed as semiconductor components. Regardless of the topology of the power unit 26, the switching means 48 of the power units 26 are indicated schematically by means of a transistor symbol.
  • the switching means 48 are formed as an IGBT (Insulated Gate Bipolar Transistor or Insulated Gate Bipolar Transistor).
  • An alternative embodiment of the switching means 48 such as Mosfet (Metal Oxide Semiconductor Field Effect Transistor or metal-oxide-semiconductor field effect transistor), or other, the expert appear useful sense switching means are conceivable.
  • the power units 26 are supplied with an electrical signal 50 having a DC voltage V.
  • the power units 26 generate the alternating current from this electrical signal 50 by means of switching operations of the switching means 48, which are controlled by the heating module control unit 34 of the corresponding heating module 30.
  • the electrical signal 50 is generated by means of rectifying a mains power signal 52.
  • the cooking device circuit 28 is provided with a rectifier 54, which is shown schematically by means of a diode symbol.
  • the rectifier 54 is connected to the circuit boards 36 via a DC bus 56.
  • Supply lines 58 for supplying the electrical signal 50 to one of the printed circuit boards 36 or to the power units 26 arranged on this printed circuit board 36 are branched off from this DC bus 56.
  • the heating module control units 34 are interconnected by means of a line 60, via which a data traffic between the heating module control units 34 can be made.
  • the cooking apparatus 10 is provided for heating the cooking utensils 18, 20 by means of a group operation of the heating units 22. This is based on FIG. 3 explained in more detail.
  • the arrangement of the heating units 22 is shown, wherein the distribution of the heating units 22 in the different Bankmodulopathy 32.1 to 32.8 is shown schematically by solid lines.
  • the heating module control units 34.1 to 34.8 can be seen, which are each provided for controlling one of the heating module groups 32.1 to 32.8 and are connected to one another for data exchange by means of the line 60.
  • first by means of the sensor means 35 examines whether the radiator 24 corresponding to the respective sensor means 35 is at least partially covered by one of the preparation harnesses 18, 20.
  • the radiator 24 are fed in a known manner with a test current, which is evaluated by the sensor means 35.
  • a heating group formation unit 62 see FIG. 2
  • Heating groups 64, 66 formed which are adapted to the dial positions of the preparation utensils 18, 20 shown by means of dash-dotted circular lines.
  • heating groups of heating units 22 are adapted or newly formed on the basis of the new arrangement of cooking utensils to be heated relative to the radiators 24.
  • the heating units 64 and 66 forming this heating group 22 are preferably operated at the same heating frequency f H.
  • the heating frequency f H of the heating group 64 may be different from the heating frequency f H of the heating group 66.
  • a heating group line unit serving for the central control of the heating groups 64 and 66 is provided.
  • one of the Schumodul horrineren 34 assumes the role of such a central control unit for the heating group 64 and 66.
  • the cooking device circuit 28 with a in FIG. 2 shown unit 68, which is provided to select a Walker weaknessleitsmaschine among the heating module control units 34, which is used to control the heating group 64 or 66 is used.
  • a heating module control unit 34 associated with a minimum number of covered heating units 22 can be selected among the heating module control units 34 belonging to heating modules 30, which have heating units 22 of a heating group 64 or 66.
  • the heating module control unit 34.6 of the heating module 30.6 can be selected as a heating group line unit for controlling the heating group 64.
  • control connections are made between the heating group line unit and the heating units 22 forming the heating group 64.
  • the heating group line unit is indirectly connected via the line 60 and one or more other heating module control units 34, which are assigned to the heating group 64, with radiators 24 different heating modules 30.
  • These heating module control units 34 are subordinated to the heating group line unit.
  • the heating group line unit makes a decision about the operating strategy for controlling the heating group 64.
  • the heating element 64 and 66 forming radiator 24 designed as a magnetic alternating field heating signal H, which oscillates with the heating frequency f H.
  • the heating modules 30 are supplied with an alternating current by means of switching operations of the power units 26.
  • the heating modules are each provided with a Schumodultakt nowadayssaku 70.1, 70.2, etc. (see FIG. 2 ).
  • the Schumodultakt nowadayssakuen 70 each correspond to an internal clock of a Schumoduleberichtmaschinetician 34.
  • heating units 22 of different heating modules 30 are typically involved in the formation of a heating group, such as heating groups 64, 66. It is therefore advantageous if heating units 22, which belong to different heating modules 30 or are assigned to different heating module clocking units 70, are synchronized with one another.
  • the cooking device circuit 28, the clocking unit 38 This is formed separately from the heating module control units 34, in particular from the heating module clocking units 70, and is intended to to provide the timing signal S for the heating modules 30.
  • the timing unit 38 is in operative connection with each of the heater module timing units 70 and is provided to synchronize the heater module timing units 70 with each other by means of the timing signal S.
  • a synchronization unit 72 which serves to synchronize heating units 22 of different heating modules 30 with one another by means of the clocking signal S provided by the clocking unit 38.
  • the synchronization unit 72 it can be achieved by the synchronization unit 72 that the heating units 22, which form the heating group 64 or 66, are synchronized with one another during operation of the heating group 64 or 66.
  • a synchronization process of the heating units 64 and 66 forming heating units 22 by means of the synchronization unit 72 is based on the FIGS. 4 to 6 described in more detail.
  • FIG. 4 the generation of the timing signal S is shown in response to a mains power signal.
  • the course of a designed as a mains power supply voltage supply characteristic value V N of the mains power supply 40 is shown as a function of time t.
  • the clocking unit 38 generates a pulse 74 at a zero point of the mains supply parameter V N.
  • the timing signal S corresponds to a train of pulses 74.
  • These pulses 74 are generated at a timing frequency f T , which in this example corresponds to twice the frequency of the mains power supply 40, in particular 110 Hz.
  • FIG. 5 shows a synchronization process of heating units 22 belonging to different heating modules 30 which are involved in the formation of the heating group 64.
  • the heating modules 30.1, 30.2, 30.5 and 30.6 involved in the formation of the heating group 64.
  • the uppermost parts of the FIG. 5 Curve diagrams shown represent the course of the alternating current, which is fed in each case in a radiator 24 of a different heating module 30, as a function of time t.
  • alternating currents are respectively generated by means of a power unit 26 of the different heating modules 30.1, 30.2, 30.5, and the switching operations of a power unit 26 are controlled with the corresponding heating module control unit 34.1, 34.2 and 34.5.
  • These switching operations generate a heating frequency f H , which is identical for the heating modules 30.1, 30.2, 30.5 and 30.6 involved in the heating group 64 and, for example, is 25 kHz.
  • the heating group 66 in which the synchronization of the heating units takes place analogously to the heating group 64, can be operated with this value of the heating frequency f H or with another value of the heating frequency f H.
  • the period of the timing signal S corresponds to at least a multiple, such as at least a tenfold, in particular at least a hundred times the period of the heating signal H.
  • the lowest part of the diagram in FIG. 5 shows the course of the timing signal S as a function of time t.
  • a pulse 74 is generated by the timing unit 38.
  • the alternating currents in different heating modules 30 have slight phase shifts ⁇ relative to one another.
  • the different Schumodultakt nowadayssakuen 70.1, 70.2, 70.5 and 70.6 are synchronized with each other. This synchronization of the various Schumodultakt concernedsakuen 70 causes new cycles of switching operations of power units 26 are initialized simultaneously in the heating modules 30.1, 30.2, 30.5 and 30.6 at the time of the pulse 74.
  • FIG. 6 an alternative embodiment of a synchronization process of three heating units 22 of three different heating modules 30.1, 30.2 and 30.5 is shown.
  • this alternative synchronizing mode which can be carried out by means of the synchronization unit 72, the heating units 22 are synchronized with each other during a synchronization period ⁇ t.
  • the timing unit 38 generates a timing signal S 'at which an electric voltage at zero of the utility power V N transits from zero to a value maintained during a period corresponding to the synchronization time ⁇ t.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Control Of Resistance Heating (AREA)

Claims (12)

  1. Circuit de dispositif de cuisson avec une multiplicité d'unités de chauffage (22) et avec une unité de formation de groupe de chauffage (62), qui est prévue pour former un groupe de chauffage (64, 66) d'unités de chauffage (22) adapté à une position choisie d'une vaisselle de préparation (18, 20), et avec une unité de synchronisation (72), qui est prévue pour synchroniser l'une avec l'autre au moins deux unités de chauffage (22), caractérisé en ce que l'unité de synchronisation (72) présente une unité d'impulsion d'horloge (38), qui est prévue pour produire un signal d'impulsion d'horloge (S) en fonction d'une grandeur caractéristique (VN) de l'alimentation en courant de réseau au moyen d'une position zéro de la grandeur caractéristique (VN) de l'alimentation en courant de réseau.
  2. Circuit de dispositif de cuisson selon la revendication 1, caractérisé en ce que l'unité de synchronisation (72) est prévue pour synchroniser les unes avec les autres des unités de chauffage (22) d'un groupe de chauffage formé (64, 66).
  3. Circuit de dispositif de cuisson selon la revendication 1 ou 2, caractérisé par une multiplicité de modules de chauffage (30.1 - 30.8), qui présentent respectivement au moins une unité de chauffage (22) et respectivement une unité de commande de module de chauffage différente (34.1 - 34.8) pour la commande de l'unité de chauffage (22).
  4. Circuit de dispositif de cuisson selon la revendication 3, caractérisé en ce que les modules de chauffage (30.1 - 30.8) présentent respectivement un groupe de modules de chauffage (32.1 - 32.8) d'unités de chauffage (22) et respectivement au moins une commande de modules de chauffage différente (34.1 - 34.8) pour la commande du groupe de modules de chauffage (32.1 - 32.8).
  5. Circuit de dispositif de cuisson selon la revendication 3 ou 4, caractérisé en ce que l'unité de synchronisation (72) présente une unité d'impulsion d'horloge (38), qui est configurée différemment des modules de chauffage (30).
  6. Circuit de dispositif de cuisson selon l'une quelconque des revendications 3 à 5, caractérisé en ce que l'unité de synchronisation (72) présente une unité d'impulsion d'horloge (38), qui est prévue pour fournir aux modules de chauffage (30) un signal d'impulsion d'horloge (S).
  7. Circuit de dispositif de cuisson selon l'une quelconque des revendications 3 à 6, caractérisé en ce que les modules de chauffage (30.1 - 30.8) présentent respectivement une unité d'impulsion d'horloge de module de chauffage (70.1 - 70.8) pour produire un signal d'impulsion d'horloge de module de chauffage pour un processus de commande du module de chauffage (30.1 - 30.8) et l'unité de synchronisation (72) présente une unité d'impulsion d'horloge (38) pour produire un signal d'impulsion d'horloge (S) pour au moins deux unités d'impulsion d'horloge de module de chauffage différentes (70.1 - 70.8).
  8. Circuit de dispositif de cuisson selon la revendication 7, caractérisé en ce que le signal d'impulsion d'horloge (S) assure la synchronisation d'au moins deux unités d'impulsion d'horloge de module de chauffage (70.1 - 70.8).
  9. Circuit de dispositif de cuisson selon l'une quelconque des revendications 3 à 8, caractérisé en ce que l'unité de synchronisation (72) est prévue pour synchroniser l'une avec l'autre au moins deux unités de chauffage (22) de modules de chauffage différents (30.1 - 30.8).
  10. Circuit de dispositif de cuisson selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de synchronisation (72) est prévue pour synchroniser au moins deux unités de chauffage (22) pendant un laps de temps de synchronisation (Δt).
  11. Circuit de dispositif de cuisson selon la revendication 10, caractérisé en ce que, dans un mode de fonctionnement, une unité de chauffage (22) assure la production d'un signal de chauffage (H) avec une fréquence de chauffage (fH) et l'unité de synchronisation (72) est prévue pour modifier la fréquence de chauffage (fH) pendant le laps de temps de synchronisation (ait).
  12. Dispositif de cuisson comportant un circuit de dispositif de cuisson selon l'une quelconque des revendications précédentes.
EP08104968.6A 2007-08-07 2008-08-06 Commutateur de dispositif de cuisson Active EP2034800B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200702292A ES2329211B1 (es) 2007-08-07 2007-08-07 Circuito de dispositivo de coccion.

Publications (2)

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EP2034800A1 EP2034800A1 (fr) 2009-03-11
EP2034800B1 true EP2034800B1 (fr) 2015-05-27

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ES (2) ES2329211B1 (fr)

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US10605464B2 (en) 2012-10-15 2020-03-31 Whirlpool Corporation Induction cooktop
US10893579B2 (en) 2017-07-18 2021-01-12 Whirlpool Corporation Method for operating an induction cooking hob and cooking hob using such method
US10993292B2 (en) 2017-10-23 2021-04-27 Whirlpool Corporation System and method for tuning an induction circuit
US11140751B2 (en) 2018-04-23 2021-10-05 Whirlpool Corporation System and method for controlling quasi-resonant induction heating devices
US11212880B2 (en) 2012-10-15 2021-12-28 Whirlpool Emea S.P.A. Induction cooking top

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EP3771288B1 (fr) 2009-10-05 2021-12-15 Whirlpool Corporation Procédé de fourniture de puissance à des zones de cuisson par induction d'une plaque de cuisson par induction dotée d'une pluralité de convertisseurs de puissance, et plaque de cuisson par induction utilisant ledit procédé
KR20110092891A (ko) 2010-02-10 2011-08-18 삼성전자주식회사 유도가열조리기
FR2966691B1 (fr) * 2010-10-21 2016-12-30 Fagorbrandt Sas Procede de controle de signaux de commande periodiques, notamment pour une table de cuisson a induction.
ES2586583T3 (es) * 2011-02-21 2016-10-17 Mitsubishi Electric Corporation Cocina de calentamiento por inducción
ES2432235B1 (es) * 2012-05-30 2014-11-04 Bsh Electrodomésticos España, S.A. Dispositivo de calentamiento por inducción
EP2914058A4 (fr) * 2012-10-25 2015-11-04 Panasonic Ip Man Co Ltd Dispositif de chauffage à induction
WO2014064931A1 (fr) * 2012-10-25 2014-05-01 パナソニック株式会社 Dispositif de chauffage à induction
EP2779788B1 (fr) * 2013-03-11 2015-08-19 Electrolux Appliances Aktiebolag Procédé permettant d'attribuer des bobines d'induction d'une table de cuisson par induction et table de cuisson par induction
EP2846607B1 (fr) * 2013-09-05 2016-05-18 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
DE102014116787A1 (de) * 2014-11-17 2016-05-19 Miele & Cie. Kg Verfahren zum Betreiben einer Kochfeldeinrichtung und Kochfeldeinrichtung
KR102713158B1 (ko) * 2016-12-08 2024-10-07 삼성전자주식회사 조리 장치
ES2673130B1 (es) * 2016-12-19 2019-03-28 Bsh Electrodomesticos Espana Sa Dispositivo de aparato domestico de coccion por induccion con una matriz de elementos de calentamiento
ES2719130A1 (es) * 2018-01-08 2019-07-08 Bsh Electrodomesticos Espana Sa Dispositivo de campo de coccion
DE102018221521A1 (de) * 2018-12-12 2020-06-18 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betrieb eines Induktionskochfelds
EP4106490A1 (fr) * 2021-06-15 2022-12-21 Aktiebolaget Electrolux Appareil de cuisson par induction

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US6693262B2 (en) * 2001-10-17 2004-02-17 Whirlpool Corporation Cooking hob with discrete distributed heating elements
EP1404154B1 (fr) * 2002-09-26 2006-09-13 MTECH Holding AB Dispositif de chauffage magnétique
FR2863039B1 (fr) * 2003-11-27 2006-02-17 Brandt Ind Procede de chauffage d'un recipient pose sur une table de cuisson a moyens de chauffage associe a des inducteurs
DE102004003126B4 (de) * 2004-01-14 2012-02-23 E.G.O. Elektro-Gerätebau GmbH Ansteuerungsverfahren für Heizelemente und Vorrichtung
ES2300168B1 (es) * 2005-10-27 2009-05-08 Bsh Electrodomesticos España, S.A. Encimera de cocina y procedimiento para el funcionamiento de una encimera de cocina.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10605464B2 (en) 2012-10-15 2020-03-31 Whirlpool Corporation Induction cooktop
US11212880B2 (en) 2012-10-15 2021-12-28 Whirlpool Emea S.P.A. Induction cooking top
US11655984B2 (en) 2012-10-15 2023-05-23 Whirlpool Corporation Induction cooktop
US10893579B2 (en) 2017-07-18 2021-01-12 Whirlpool Corporation Method for operating an induction cooking hob and cooking hob using such method
US10993292B2 (en) 2017-10-23 2021-04-27 Whirlpool Corporation System and method for tuning an induction circuit
US11140751B2 (en) 2018-04-23 2021-10-05 Whirlpool Corporation System and method for controlling quasi-resonant induction heating devices
US12245348B2 (en) 2018-04-23 2025-03-04 Whirlpool Corporation System and method for controlling quasi-resonant induction heating devices

Also Published As

Publication number Publication date
ES2329211B1 (es) 2010-08-30
ES2538988T3 (es) 2015-06-25
EP2034800A1 (fr) 2009-03-11
ES2329211A1 (es) 2009-11-23

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