EP2380395A1 - Table de cuisson avec au moins trois zones de cuisson - Google Patents

Table de cuisson avec au moins trois zones de cuisson

Info

Publication number
EP2380395A1
EP2380395A1 EP09779563A EP09779563A EP2380395A1 EP 2380395 A1 EP2380395 A1 EP 2380395A1 EP 09779563 A EP09779563 A EP 09779563A EP 09779563 A EP09779563 A EP 09779563A EP 2380395 A1 EP2380395 A1 EP 2380395A1
Authority
EP
European Patent Office
Prior art keywords
inductors
power
inverters
hob according
hob
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.)
Granted
Application number
EP09779563A
Other languages
German (de)
English (en)
Other versions
EP2380395B1 (fr
Inventor
Daniel Anton Falcon
José Miguel Burdio Pinilla
Jose-Ramon Garcia Jimenez
Sergio Llorente Gil
Oscar Lucia Gil
Fernando Monterde Aznar
Diego Puyal Puente
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 Bosch und Siemens 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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2380395A1 publication Critical patent/EP2380395A1/fr
Application granted granted Critical
Publication of EP2380395B1 publication Critical patent/EP2380395B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H05B6/10—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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/04—Sources of current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate

Definitions

  • the invention is based on a hob with a plurality of inductors and at least three heating zones, which are operable by the inductors.
  • EP 0 971 562 B1 discloses an induction hob with inductor heating elements which are designed to operate at least three or four heating zones of the induction hob.
  • the induction hob comprises two power electronics modules, which - as usual in the field of hobs - each comprise a rectifier for rectifying a supplied from a phase of a household power supply AC voltage.
  • Cooktops are usually connected to three-phase systems with three independent phases, of which, in the case of cooktops with three or four heating zones, two phases are tapped.
  • the invention is therefore in particular the object of reducing the production cost of a generic hob.
  • the invention is based on a hob with a plurality of inductors and at least three heating zones, which are operable by the inductors.
  • the inductors be supplied with heating currents from a single power electronics module having a rectifier commonly used for the inductors for rectifying an AC voltage supplied from a single phase of a household electrical network.
  • the second power level commonly used in large induction hobs with three or four heating zones Electronic module can be saved.
  • the technical prejudice that the power that can be generated from one phase of a household power network is sufficient for operating only two heating zones, hardly a practical test withstand.
  • the power electronics assembly may include a plurality of boards, such as a single-layer board for the filter components and a four-layer or multi-layer board for the control electronics.
  • the sum of the inductor nominal powers of all inductors may be more than 1.3 times the nominal power of the power electronics module.
  • the advantages of the invention are particularly relevant in connection with induction hobs.
  • Power electronics assemblies of such induction hobs include costly inverters, the number and performance of which can be reduced by the inventive limitation of the nominal power of the induction hob.
  • the inverters are preferably integrated in the power electronics module or mounted together with the rectifier on a common board.
  • a complex power management may be enabled by a switching device for connecting the inductors to one of the inverters.
  • the switching device preferably connects in different switching positions at least one of the inductors with different inverters and / or connects at least one of the inductors in at least one switching position with a plurality of inverters.
  • the required number of inverters can be reduced by a flexible applicability of the inverters and, on the other hand, the power of two inverters can be focused on one of the inductors, resulting in very diverse control options for the hob.
  • the heating powers or heating currents of all inverters can be concentrated on a single inductor, if the switching device in at least one switching position connects this inductor simultaneously with all inverters.
  • the switching device comprises at least one semiconductor switch, in particular a triac switch, arranged between an inductor and an inverter.
  • An output of a triac switch can be connected to two or more in parallel switchable inductors and / or two or more parallel switchable inverters.
  • the invention can be used in particular in hobs with substantially square cover plates with an edge length of about 60 - 80 cm.
  • a particularly advantageous embodiment of the invention can be used as a power electronics module regular, designed for connection to a phase of a three-phase household power power electronics module with a nominal power of at most 5400 W or a maximum current of 25 amps at 220 W or 230 Weinset.
  • This value allows sufficient heating power and yet does not overload the household electricity grids in the great majority of countries.
  • Another conceivable value would be a maximum power of 4600 A.
  • the hob according to the invention is particularly advantageous part of a series with at least two different hob models that serve different price segments of the market. In this case, the two hob types differ in particular by the number of power electronics modules used and by the distribution of the heating currents generated by the power electronics modules on the various inductors. While the distribution can be realized by suitable software in a control unit which actuates the switching unit, the hardware of the more elaborate cooktop differs from the hardware of the cooktop according to the invention by at least one further power electronics module.
  • the hob according to the invention with only one power electronics module therefore has advantageous free space for installing a further power electronics module that can be connected to a further phase of the household power grid.
  • a further power electronics module that can be connected to a further phase of the household power grid.
  • an additional counselelekt- ronik assembly such as screw holes, tabs or the like may be provided.
  • the hob can be upgraded in a simple manner and the different hob types can be realized without changing a cooktop housing or a mounting frame that holds the power electronics assemblies.
  • the hob comprises a plurality of preassembled modules, each having a plurality of inductors. Due to the modular design, the flexibility in the design of the hob can be further increased and the various modules and power electronics modules can be used in a wide variety of possible hob types.
  • heating zones should also be defined as flexibly definable heating zones in so-called matrix cooktops, in which the control unit combines different inductors depending on a detected position and size of a cookware element into heating zones.
  • the hob comprises more than three simultaneously operable and flexibly definable heating zones.
  • the tax be designed to operate three or more such heating zones simultaneously, in particular such that the user can select the desired heating powers of the different heating zones independently.
  • Target heating power or power level was last increased is limited to an available residual heat output.
  • the residual heating power is the difference between the heating power currently consumed by the remaining heating zones and the nominal power of the power electronics module. Further, the user may be informed that the sum of the requested desired heating powers exceeds the available heating power. This can be done for example by a lighting element or by a display on a display. Alternatively or additionally, acoustic signals are also conceivable.
  • the hob comprises a display element for displaying a fraction of the currently claimed nominal power of the power electronics module.
  • the user can therefore recognize when a performance limit has been reached and estimate whether the heating of another cookware element, such as a pot or a pan would overburden the performance of the hob, or to a reduction of the heating power of the other heating zones by a necessary redistribution Heat output would result.
  • another cookware element such as a pot or a pan
  • the fraction of the nominal power can be given as a percentage, for example. This can be done for example on a display or by lighting elements on a linear scale.
  • FIG. 1 shows an induction hob with four heating zones, a switching device and a power electronics module
  • Fig. 2 is a block diagram of a cooking hob according to the invention with four
  • Heating zones, multiple inverters and a switching device Heating zones, multiple inverters and a switching device
  • FIG. 3 shows a schematic representation of the topology of inverters of a power electronics module according to the invention
  • FIG. 4 shows a schematic representation of a power management for the simultaneous supply of two heating zones, wherein the activation phases of different heating zones are synchronized by zeroing a control voltage
  • FIG. 5 shows a schematic representation of the power management for the simultaneous supply of two heating zones, wherein the activation phases of different heating zones are synchronized by detecting a distance between the activation phases
  • FIG. 6 shows a schematic representation of an interconnection of inductors and triac switches of a cooktop according to the invention
  • FIG. 7 shows a topology of a cooktop according to the invention with a plurality of preassembled modules, each comprising groups of several inductors;
  • FIG. 8 shows a display element for displaying an available fraction of a nominal power of the power electronics module of a cooktop according to the invention
  • FIG. 10 shows a topology of an induction hob with a plurality of inductors operable in parallel by a half-bridge inverter according to a further embodiment of the invention
  • 11 shows a topology of an induction hob with two pairs of inductors operable in parallel by a half-bridge inverter according to a further embodiment of the invention
  • 12 shows a topology of an induction hob with two rectifiers and a plurality of filter circuits according to a further embodiment of the invention
  • FIG. 13 shows a switching element for use in a hob according to the invention
  • Fig. 14 shows a filter circuit for use in a device according to the invention
  • FIG. 15 shows the topology of an induction hob according to a further embodiment of the invention.
  • Fig. 1 shows an induction hob with a matrix of inductors 10, each comprising an induction coil and an inductor carrier made of aluminum. Four of these inductors 10 are combined to form a pre-assembled module 26.
  • the induction hob comprises four such modules 26, which are identical. In alternative embodiments of the invention, each of the modules 26 comprises only one inductor.
  • the hob is substantially square with an edge length of about 60 cm and the inductors 10 are covered by a square cover plate (not shown) on which cookware elements 28 such as pots or pans can be placed.
  • the cooktop comprises a control unit 32, a single power electronics module 14 with two inverters 20 and a switching device 22, via which a connection between the inverters 20 and the inductors 10 can be made or interrupted.
  • each of the inductors 10 can be connected to a plurality of inverters 20 and each of the inverters 20 can be connected to a plurality of inductors 10. Further, it is possible to switch a plurality of inverters 20 in parallel and simultaneously to connect with a single inductor 10 so as to increase a heating power of this inductor. In various embodiments of the invention, this switching device 22 connects either each
  • the control unit 32 can set via a control line both a frequency of an alternating current generated by the inverters 20 and an amplitude thereof AC vary.
  • the amplitude is varied by a pulse-width-modulated control of the inverters 20 or by a variation of pulse widths of a gate input signal generated by the control unit 32 of insulated gate bipolar transistors (IGBTs) of the inverters 20.
  • IGBTs insulated gate bipolar transistors
  • the switching device 22 comprises a complex system of relays and / or semiconductor switches 24, in particular triac switches (FIG. 3), which each have inputs for control signals generated by the control unit 32, wherein the switching position of the switching device 22 can be changed by means of these control signals ,
  • the power electronics module comprises a rectifier 16, which is connected to a phase 18 of a household power network 34.
  • the household power supply 34 supplies a three-phase three-phase current with an amplitude of 220-230 V and is limited by a household fuse to a maximum current of 16 A.
  • the power electronics module can therefore achieve a maximum power of approx. 3.5-3.7 kW.
  • a nominal power of the power electronics module 14 is approximately 4.5 kW.
  • FIG. 2 shows a block diagram of the hob according to the invention according to an alternative embodiment of the invention, in which the modules 26 each have an inductor 10.
  • the four modules 26 each include inductors with a nominal power of 2 x 1, 8 kW, 1, 4 kW and 2.2 kW, so that the total nominal power of the hob is 7.2 kW.
  • the inductors 10 may comprise separate inductor carriers shared by two inductors.
  • Each of the modules 26 may operate a heating zone 12 of the hob.
  • the control unit 32 which detects the cooking utensils 28 placed on the hob, collects the inductors located below a bottom of the cooking utensil 28 into a flexible definable heating zone 12.
  • the individual heating zones 12 may be limited to the modules 26 or comprise inductors 10 of different modules 26.
  • the power electronics module 14 includes the inverters 20 and the switching device 22, which accordingly in the Power electronics module 14 is integrated. All elements of the power electronics module 14 are mounted on a common board, which comprises a terminal 36 for clamping the phase 18 of the household power network 34 and another terminal (not shown) for clamping a zero potential of the household power network 34.
  • the control unit 32 To prevent audible and disturbing intermodulation hum by operating adjacent inductors 10 at similar frequencies or by operating inverters 20 with common supply or control lines, the control unit 32 simultaneously operates the inverters 20 only at frequencies that are either equal or different of at least 17 kHz. Since the different modules 26 of the cooktop are mechanically largely independent, the control unit 32 uses this intermodulation humming prevention strategy only if the respective heating zones 12 include inductors 10 of the same module 26. If the heating zones 12 are formed by inductors of different modules 26, the frequencies of the heating current with which the heating zones 12 are operated can be varied independently of each other.
  • the switching device comprises two semiconductor switches 24 with connections 38 for control lines in the control unit 32.
  • IGBTs with diodes triacs or thyristors may be used become.
  • the semiconductor switch 24 and conventional electromechanical relays can be used.
  • the inductors 10, of which only two are shown for the sake of simplicity, are connected in parallel and each of the inductors 10 is assigned a capacitor 40, which forms a resonant circuit together with the respective inductor 10.
  • FIG. 3 shows an inverter 20, which is constructed in a half-bridge topology from two IGBTs 52. Between the inverter 20 and the phase 18 of the household power network 34, a plurality of rectifier diodes 42 of the rectifier 16 and a damping capacitor 44 are arranged. An EMC filter commonly used for all heating zones is not shown.
  • FIGS. 4 and 5 When multiple heating zones 12 are to be operated by a single inverter 20, a time division multiplexing control method of the type illustrated in FIGS. 4 and 5 may be used.
  • the examples in the Figures 4 and 5 limited to two heating zones 12 and to a control period T with a length of three half-waves of the supply voltage.
  • FIG. 4 shows the case of a non-complementary multiplexing method
  • FIG. 5 shows the case of a complementary multiplexing method.
  • the advantage of the complementary multiplexing method is that multiple inductors 10 can be operated during the same supply voltage half cycle.
  • An essential aspect is that for each inductor 10, the number of half waves within a control period T during which this inductor 10 is operated is odd. As a result, flicker standards can be adhered to.
  • control unit 32 uses a power management scheme shown in Fig. 4.
  • a synchronization AC voltage Vbus which may be derived from the voltage generated by the rectifier 16, is used to trigger a control period T.
  • a duration of the control period T is three half-cycles of the synchronization AC voltage Vbus.
  • the control unit 32 activates the inductors of two different heating zones 12 in different activation phases P1, P2, the duration of which ton1, ton2 and their distance tD1, tD2 of zero crossings of the synchronization AC voltage Vbus is determined depending on a set for the relevant heating zone 12 power level ,
  • the activation phases P1, P2 are preferably chosen to be non-overlapping in order to avoid flicker.
  • a timing of the first activation phase P1 is determined by the distance tD1 from a zero crossing of the synchronization voltage Vbus
  • the timing of the second activation phase P2 is determined by the distance tD2 from a second zero crossing of the synchronization voltage Vbus within the control period T.
  • Fig. 5 shows an alternative embodiment of the invention in which the timing of the second activation phase P2 is determined by a distance tD2 from one end of the first activation phase P1.
  • Fig. 6 shows a schematic representation of an interconnection of the hob according to the invention, in parallel to the semiconductor switches 24 of the various modules 26 of the hob each have a relay 46 is provided with which the semiconductor switches 24 can be bridged when not in an operating mode based on Fig. 5 and Fig. 6 explained alternating operation of the inductors 10 is carried out, but the inverter 20, the corresponding inductor 10 continuously supply with heating current.
  • the switching device 22 comprises a booster relay, with which an inverter 20 mainly associated with a first module can be linked to another module 26, so that the inductors 10 of the modules 26 can be supplied simultaneously by a plurality of inverters 20 of different modules 26. The total current flowing through the inductors 10 is measured with an ammeter 80.
  • FIG. 7 shows a generalized block diagram of a cooktop according to the invention, in which k modules 26 each having m inductors 10 are supplied by a single power electronics module 14 with n inverters 20 and I switching elements 50 of the switching device 22.
  • the switching device 22 is combined with the rectifier 16 and the inverters 20 to the power electronics module 14.
  • the inverters 20 have a total nominal power of 4.6 kW and the sum of the nominal powers of the inductors 10 is 7.2 kW.
  • the nominal power of the power electronics module 14 depends on the parameters of the local household power grid. For 230V and 2OA, 4.6 kW, for other current values, which may be 16A, 2OA, 25A or 32A, depending on the country, different values.
  • FIG. 8 schematically shows a display element 30 arranged in a transparent region of the cover plate of the cooktop, which displays a fraction of the currently claimed nominal power of the power electronics module 14 in percent.
  • the user can thus recognize whether there is still power available for increasing a heating power of one of the heating zones 12 and / or if there is still further heating power for heating another one Cooking utensils in a further heating zone 12 can be provided.
  • the display element 30 displays 100%, the nominal power of the power electronics assembly 14 is exhausted.
  • the display element 30 is formed by a serigraphy on the back of the cover plate and a number of light-emitting diodes, which are turned on or off by the control unit 32 depending on the currently consumed power.
  • control unit 32 then distributes the available power according to the ratios of the power levels set for the heating zones 12 across the various heating zones.
  • the control unit 32 may for example use the power management described in connection with FIGS. 4 and 5.
  • FIG. 9 shows schematically the construction of an induction hob with a plurality of inductors 10 connected in parallel, which are operated via an inverter 20 consisting of only a single semiconductor switch.
  • Each of the inductors 10 is connected in series with an inverter 20.
  • Parallel to the inductor 10 a capacitor 40 is arranged, which supplements the inductor 10 to a closed resonant circuit.
  • the cooktop is connected to a single phase 18 of the household power network, from which an input current for a rectifier 16 is obtained. Between the rectifier 16 and the phase 18, a filter circuit 52 is arranged.
  • the filter circuit 52 eliminates high-frequency noise and is essentially a low-pass filter.
  • FIG. 10 shows a further alternative embodiment of the invention with a plurality of inductors 10 which can be switched in parallel via switching elements 50 and which are connected to a half-bridge inverter 20 and can be operated in a time-division multiplex method. Via the inverter 20, a plurality of inductors 10 can be operated simultaneously, wherein the maximum power of the inverter 20 must be designed accordingly.
  • Fig. 1 1 shows a further alternative embodiment, in which two inductors 10 are connected to an inverter 20. About a switch 54, the both inverters 20 are connected in parallel to increase the power. Both inverters 20 are fed via a single rectifier 16.
  • FIG. 12 shows the structure of a further alternative cooktop with inductors 10, which are each operated via a single-switch inverter 20.
  • the current from a single phase 18 of the household power grid is rectified by two rectifiers 16, each associated with a pair of inductors 10.
  • a filter circuit 52 connected directly to the phase 18 of the household power network is supplemented by further filter circuits 56a, 56b, each of which low-pass filters the input current of one of the rectifiers 16.
  • the inverters 20 and the inductors 10 may have different nominal powers as shown in FIG.
  • the nominal powers are determined by the maximum powers of the semiconductor switches of the inverters 20 and the passive components, such as the snubber capacitors and smoothing inductors.
  • the semiconductor switches are preferably formed as insulated gate bipolar transistors (IGBT).
  • IGBT insulated gate bipolar transistors
  • care must be taken in the design of the inverter 20 and the inductors to a certain power on the cooling.
  • a blower or a heat sink not shown here must be dimensioned according to the maximum power.
  • the power limitation is monitored by suitable firmware in microcontrollers of the cooktop.
  • Semiconductor switching elements for switching on and off the inductors 10 are preferably used in the invention.
  • Fig. 13 shows an alternative embodiment of a switching element 50 for use in a hob according to the invention.
  • a semiconductor switch 58 for example a triac or two antiparallel IGBT's, is supplemented by a parallel arranged electromechanical relay 60, which can be closed when high-frequency switching operations are not necessary. As a result, in operating states in which the switching element 50 remains closed for longer, power losses in the semiconductor switch 58 can be avoided.
  • Fig. 14 shows a filter circuit 52 for use in an induction hob according to the invention.
  • the filter circuit 52 includes a varistor 62, a first snubber capacitor 64, an input relay 60, a smoothing choke 66 for smoothing common vibrations of the input lines, another capacitor array 68 for damping oscillations in the individual input lines, the two capacitors of the capacitor array 68 are each grounded, a fuse 70, another snubber capacitor 72 and two differential smoothing reactors 74, 76 in the different lines.
  • the filter circuit 52 is terminated by a further capacitor arrangement 77 and by a further varistor 78.
  • FIG. 15 shows the topology of an induction hob according to a further embodiment of the invention.
  • the power from the household power network 34 is filtered in a filter circuit 52 used in common for all heating zones, inverters 20 and inductors 10 rectified in a rectifier 16 and two inverters 20 supplied.
  • Each of the inverters 20 may be connected to each of the inductors 10 via switching elements 50 and a switch 54 of a switching device 22. In particular, by closing the switch 54 and closing only a single one of the switching elements 50, it is also possible to concentrate the total power of both inverters 20 onto a single inductor 10.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne une table de cuisson avec plusieurs inducteurs (10) et avec au moins trois zones de cuisson (12) formées par les inducteurs (10). Afin de pouvoir réaliser une table de cuisson économique, il est proposé que les inducteurs (10) soient alimentés en courant de chauffage par un unique module électronique de puissance (14) avec un redresseur (16) utilisé en commun pour les inducteurs (10), destiné à redresser une tension alternative fournie par une phase unique (18) d'un réseau électrique domestique (34).
EP09779563.7A 2008-12-19 2009-05-27 Table de cuisson avec au moins trois zones de cuisson Active EP2380395B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200803708A ES2353890B1 (es) 2008-12-19 2008-12-19 Campo de cocción con al menos tres zonas de calentamiento.
PCT/EP2009/056475 WO2010069616A1 (fr) 2008-12-19 2009-05-27 Table de cuisson avec au moins trois zones de cuisson

Publications (2)

Publication Number Publication Date
EP2380395A1 true EP2380395A1 (fr) 2011-10-26
EP2380395B1 EP2380395B1 (fr) 2020-04-22

Family

ID=40887860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09779563.7A Active EP2380395B1 (fr) 2008-12-19 2009-05-27 Table de cuisson avec au moins trois zones de cuisson

Country Status (6)

Country Link
US (1) US9113502B2 (fr)
EP (1) EP2380395B1 (fr)
KR (1) KR101570896B1 (fr)
CN (1) CN102257876B (fr)
ES (2) ES2353890B1 (fr)
WO (1) WO2010069616A1 (fr)

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Publication number Publication date
KR101570896B1 (ko) 2015-11-20
WO2010069616A1 (fr) 2010-06-24
ES2353890A1 (es) 2011-03-08
CN102257876B (zh) 2016-03-02
ES2353890B1 (es) 2012-01-26
CN102257876A (zh) 2011-11-23
KR20110099746A (ko) 2011-09-08
US9113502B2 (en) 2015-08-18
US20110240632A1 (en) 2011-10-06
ES2798173T3 (es) 2020-12-09
EP2380395B1 (fr) 2020-04-22

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