EP2440008B1 - Steuerverfahren bei Betrieb einer Reihe von Induktoren eines Induktionskochfeldes, und zugehöriges Induktionskochfeld - Google Patents

Steuerverfahren bei Betrieb einer Reihe von Induktoren eines Induktionskochfeldes, und zugehöriges Induktionskochfeld Download PDF

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Publication number
EP2440008B1
EP2440008B1 EP11184070.8A EP11184070A EP2440008B1 EP 2440008 B1 EP2440008 B1 EP 2440008B1 EP 11184070 A EP11184070 A EP 11184070A EP 2440008 B1 EP2440008 B1 EP 2440008B1
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EP
European Patent Office
Prior art keywords
cooking
hob
zones
heating elements
container
Prior art date
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Application number
EP11184070.8A
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English (en)
French (fr)
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EP2440008A2 (de
EP2440008A3 (de
Inventor
Xavier Andre
Jean-Marc Bugeia
Emmanuel Pouzin
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.)
Groupe Brandt SAS
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Groupe Brandt SAS
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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
    • 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 present invention relates to a control method in operation of the heating elements of a hob.
  • the present invention relates to a control method in operation of a set of heating elements of a hob.
  • a hob it comprises separate heating elements forming distinct cooking heaters and clearly identified by a screen printing on the hob, or it comprises a set of heating elements distributed in a two-dimensional grid in a cooking plane of said hob, adapted to implement the control method according to the invention.
  • Cooking hobs are already known comprising independent cooking hobs whose number, position and size of the cooking hobs are defined by the hob manufacturer.
  • the cooking hobs are symbolized on the hob of the hobs by a marking made by screen printing for the electric radiant or induction tables, or by the heating element itself for the electric tables with cast iron fireplace or for the table gas.
  • Each cooking zone is respectively associated with one or more display elements of the control means.
  • the data required to control one of the cooking stoves are displayed by means of this or these respective display elements.
  • an induction hob comprising inductors arranged in a matrix manner in the hob, each cooking hob is constituted case by case depending on the position and the size of the container placed on the hob in vis-à-vis a subset of inductors.
  • hobs equipped with timers that allow to assign a running time to one or more hobs used.
  • the control means of the hob stop the heating elements of the home to which the time elapsed.
  • the user operates a cooking chamber after positioning a container to be heated, then selects the timer corresponding to the cooking stove and adjusts the cooking time it wishes to achieve.
  • the setting of at least one timer can be different and generate a stop of the heating at an inopportune moment.
  • FR 2 758 934 A1 which describes a multipurpose cooking hearth which comprises at least two standard inductors external to each other, each fed by a standard generator, the area occupied by at least two inductors being substantially equal to the area of at least part of the containers to be heated.
  • each inductor heats respectively each container.
  • a different cooking time timer can be assigned to each container.
  • several inductors are assigned to the heating of this container.
  • a cooking time timer can be assigned to the heating of this container.
  • EP 2 144 480 A1 which describes a method of controlling at least one heating means of a cooking appliance, said cooking appliance having at least one timer.
  • the method allows the user to obtain the display of the operating time of at least one heating means since it is put into operation and / or since the acquisition of a modification of at least one operating parameter of said at least one heating means, without having set at least one operating duration of a timer.
  • the method further allows the remaining operating time or the total operating time to be adjusted.
  • EP 2 166 290 A1 which describes a method of controlling a hob comprising at least two independent cooking hobs associated with control means.
  • the method of controlling a cooktop facilitates the movement of a cooking vessel from a cooking hearth initially covered by said cooking vessel to a recipient cooking hearth all maintaining the cooking of the contents of said cooking vessel under similar conditions without having to re-tune the recipient hearth and extinguish the initially covered cooking chamber.
  • the present invention aims to solve the aforementioned drawbacks and to provide a control method in operation of a set of heating elements of a hob, and an associated hob, for setting a timer and of assign the selected duration to multiple homes at a time.
  • the operating control method of a set of inductors of an induction hob allows to assign a cooking time identical to at least two cooking hobs. And it allows that cooking on at least two cooking stoves ends at the same time, allowing for example to serve the same moment the dishes heated by said at least two cooking stoves.
  • said operating time of said at least two cooking stoves is entered on control means of a timer of said hob.
  • the present invention aims, in a second aspect, a hob, comprising a set of heating elements, each heating element forming a heating means of a container.
  • the hob includes control means adapted to implement the control method according to the invention.
  • This hob has characteristics and advantages similar to those described above in connection with the control method according to the invention.
  • a hob adapted to implement the control method in operation of a set of heating elements according to an embodiment of the invention.
  • a hob according to a first embodiment.
  • FIG 1 a schematic top view of a hob.
  • Such a hob can be embedded or be an integral part of a work plan. It can also be associated with other cooking devices, such as an oven arranged at the bottom.
  • the hob may include adjacent other cooking hobs of the same type or different type.
  • each cooking stove consists of one or more induction heating elements.
  • a single disk-shaped inductor can materialize each cooking zone.
  • each cooking zone may comprise several concentric inductors and, for example, three concentric inductors to adapt the size of the cooking zone to the size of the container to be heated.
  • This type of concentric inductor is well known and described in particular in the document FR 2,728,132 .
  • we have illustrated on the figure 1 four cooking zones F1, F2, F3 and F4 successively disposed from an edge 11 to an edge 12 of the hob 10.
  • the hob 10 has a front edge 13 corresponding to the front face of the cooktop 10 at which is traditionally positioned the user of the table.
  • the different cooking zones F1 to F4 are successively arranged from a left lateral edge 11 to a right lateral edge 12 of the hob.
  • the number of cooking zones here equal to 4, is not limiting.
  • the arrangement of the cooking zones could be different.
  • a cooking zone could be arranged in the center of the table, different cooking zones being arranged around this central cooking zone, at the periphery of the hob.
  • a control panel 14 is generally provided near the front edge 13 of the cooktop to allow the user to control the operation and change various parameters associated with the cooktop.
  • This control panel 14 may comprise different sensory keys.
  • the heating powers Pi can be between 100 and 3000 W.
  • a hob according to a second embodiment.
  • the hob is thus shown schematically from above.
  • this hob can be embedded or be an integral part of a worktop and possibly be associated with other cooking devices, such as an oven or other cooking stoves arranged in the same plane.
  • the hob comprises a multitude of heating elements, and for example several small induction heating elements arranged in a matrix manner in the hob.
  • the heating elements 21 are thus distributed along a two-dimensional grid in the cooking plane of the table 20.
  • This hob thus has a large cooking zone, up to the size of the hob and for heating one or more containers without predetermined location of the cooking chamber.
  • Each heating element 21 consists of a small winding or elementary inductor.
  • these heating elements 21 are of circular shape and staggered in the cooking plane, so as to cover the entire surface of the hob.
  • the size of the inductors 21 is small enough that any container size covers at least one elementary inductor.
  • the diameter of each elementary inductor 21 may be equal to 70 or 80 mm.
  • the inductors can be of different shape and size, such as for example triangular, rectangular, or octagonal.
  • the inductors 21 are arranged in line in one direction, for example horizontal, and the inductors 21 of each line are themselves arranged in staggered rows with the inductors 21 of the adjacent lines so as to best cover the plane Cooking.
  • the arrangement of the inductors in the hob is not limiting and may be different.
  • the hob thus formed through the inductors 21 can be of any shape, for example rectangular.
  • each inductor is independently powered and has independent heating power control means.
  • the maximum power supplied by each inductor is of the order of 700 W. It is thus possible to obtain a total power of approximately 2800 W for a container 9 of medium size, of about 18 cm. diameter, which would recover four inductors 21.
  • the traditional control system of such a hob can manage one or more containers 9 placed on the hob and apply different powers, depending on the desired power required by the user, for each container 9.
  • the hob 20 comprises a control and display touch screen 30.
  • Each heating element 21 is associated with means for detecting the presence of a container 9 placed on the cooking surface in line with this heating element 21.
  • the elementary inductors 21 constitute both the heating means of the container and the means for detecting the presence of a container 9.
  • the measurement of the effective current passing through each inductor is dependent on the surface of this inductor covered by a container.
  • the control of this effective current thus makes it possible to determine the recovery rate of this inductor by a container placed on the hob.
  • the position of the container on the cooking surface can be determined and a cooking zone consisting of one or more adjacent inductors can thus be defined.
  • the hob 20 comprises, as before, control means which make it possible to control the operation of the power control means of each inductor so that the heating power associated with a heating zone detected cooking is equal to a predefined value.
  • Such an induction hob 20 does not include predefined defined cooking hob, each cooking hob being determined case by case depending on the position and the size of a container 9 placed on the hob 22 and covering a subset of inductors 21.
  • Each inductor 21 may be supplied in the conventional manner by an inverter supply device (not shown), composed for example of a half-bridge power electronic structure or of a quasi-resonant circuit power electronics structure. .
  • an inverter supply device (not shown), composed for example of a half-bridge power electronic structure or of a quasi-resonant circuit power electronics structure.
  • the type of electronic power structure is not limiting and may be different.
  • the presence detection of the container can be implemented by measuring the effective current passing through each inductor 21. since it is dependent on the surface covered by said inductor 21 by a container.
  • the inductors 21 thus constitute both the heating means of a container and the means for detecting the presence of a container.
  • the control means (not shown) of the induction hob 20, comprising at least one or more microcontrollers, are able to control one or more containers placed on the hob 22 and apply operating powers to each home different, or identical, which are dependent on the desired power demanded by the user for each container.
  • the control means cancels the current timer for this cooking stove and maintains in operation for the remaining operating time said at least one cooking zone that has been operated for a predetermined operating time.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Stoves And Ranges (AREA)
  • Induction Heating Cooking Devices (AREA)
  • General Induction Heating (AREA)
  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Claims (8)

  1. Verfahren zur Betriebssteuerung einer Einheit von Heizelementen (21) einer Kochplatte (10, 20), wobei die Heizelemente (21) Mittel zum Erhitzen eines Behälters (9) bilden, wobei die Platte Kochherde (Z, F1, F2, F3, F4) umfasst, die von einem oder mehreren Heizelementen (21) gebildet werden, wobei die Kochherde (Z, F1, F2, F3, F4) entweder unabhängig auf dem Kochfeld (5) sind, oder individuell in Abhängigkeit von der Position und der Größe eines Behälters (9), der auf das Kochfeld (22) gestellt wird, bestimmt werden,
    wobei das Verfahren mindestens folgende Schritte umfasst:
    - Inbetriebsetzen von mindestens zwei Kochherden, wobei jeder Kochherd einem Kochbehälter zugeordnet ist, und wobei jeder Kochherd mit einem unterschiedlichen Leistungssollwert gesteuert werden kann;
    - Darstellen der mindestens zwei Kochherde (Z, F1, F2, F3, F4) auf mindestens einem Anzeigemittel (30);
    dadurch gekennzeichnet, dass das Verfahren ebenfalls mindestens folgende Schritte umfasst:
    - Auswählen ausschließlich jener Kochherde (Z, F1, F2, F3, F4), die während einer gleichen Dauer in Betrieb zu setzen sind, über Auswahlmittel einer Steuertastatur je nach Wunsch des Benutzers;
    - Erfassen einer Betriebsdauer;
    - Zuordnen der Betriebsdauer zu den ausgewählten Kochherden (Z, F1, F2, F3, F4).
  2. Verfahren zur Betriebssteuerung einer Einheit von Heizelementen (21) einer Kochplatte (10, 20) nach Anspruch 1, dadurch gekennzeichnet, dass die Betriebsdauer der mindestens zwei Kochherde (Z, F1, F2, F3, F4) auf Steuermitteln einer Zeitschaltuhr der Kochplatte (10, 20) eingegeben wird.
  3. Verfahren zur Betriebssteuerung einer Einheit von Heizelementen (21) einer Kochplatte (10, 20) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Verfahren ebenfalls mindestens folgende Schritte umfasst:
    - Inbetriebsetzen eines zusätzlichen Kochherds (Z, F1, F2, F3, F4);
    - Darstellen des zusätzlichen Kochherds (Z, F1, F2, F3, F4) auf mindestens einem Anzeigemittel (30);
    - Auswählen des zusätzlichen Kochherds (Z, F1, F2, F3, F4) und mindestens eines der mindestens zwei Kochherde (Z, F1, F2, F3, F4);
    - Erfassen einer neuen Betriebsdauer;
    - Zuordnen der neuen Betriebsdauer zu den ausgewählten Kochherden (Z, F1, F2, F3, F4).
  4. Verfahren zur Betriebssteuerung einer Einheit von Heizelementen (21) einer Kochplatte (10, 20) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Verfahren ebenfalls mindestens folgende Schritte umfasst:
    - Abschalten von einem der Kochherde (Z, F1, F2, F3, F4) vor dem Ende der vorausbestimmten Betriebsdauer, für die der Kochherd (Z, F1, F2, F3, F4) in Betrieb gesetzt wurde;
    - Löschen der Darstellung des Kochherds (Z, F1, F2, F3, F4) auf mindestens einem Anzeigemittel (30);
    - Abbrechen der restlichen Betriebsdauer für den abgeschalteten Kochherd (Z, F1, F2, F3, F4);
    - Aufrechterhalten des Betriebs für die restliche Betriebsdauer eines anderen der Kochherde (Z, F1, F2, F3, F4), der für die vorausbestimmte Betriebsdauer in Betrieb gesetzt wurde.
  5. Verfahren zur Betriebssteuerung einer Einheit von Heizelementen (21) einer Kochplatte (10, 20) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass, falls einer der auf dem Kochfeld (5) angeordneten Behälter, der zu einem der Kochherde (Z, F1, F2, F3, F4) gehört, die beim Schritt des Zuordnens der Betriebsdauer herangezogen wurden, in Bezug auf das Kochfeld (5) angehoben wird, das Verfahren einen Schritt des Unterbrechens der Betriebsdauer der Zeitschaltuhr umfasst, die dem Kochherd (Z, F1, F2, F3, F4) zugeordnet ist.
  6. Verfahren zur Betriebssteuerung einer Einheit von Heizelementen (21) einer Kochplatte (10, 20) nach Anspruch 5, dadurch gekennzeichnet, dass im Anschluss an das Feststellen des Behälters auf dem Kochherd (Z, F1, F2, F3, F4) das Verfahren einen Schritt der Wiederaufnahme des Ablaufens der Betriebsdauer der Zeitschaltuhr umfasst, die dem Kochherd (Z, F1, F2, F3, F4) zugeordnet ist.
  7. Kochplatte (20), umfassend eine Einheit von Heizelementen (21), die gemäß einem zweidimensionalen Raster in einem Kochfeld (22) der Kochplatte (20) verteilt sind, wobei jedes Heizelement (21) ein Mittel zum Erhitzen eines Behälters (9) bildet, wobei die Platte Kochherde (Z) umfasst, die von einem oder mehreren Heizelementen (21) gebildet werden, wobei die Kochherde (Z) individuell in Abhängigkeit von der Position und der Größe eines Behälters (9), der auf das Kochfeld (22) gestellt wird, bestimmt werden, dadurch gekennzeichnet, dass sie Steuermittel umfasst, die angepasst sind, um das Steuerungsverfahren nach einem der Ansprüche 1 bis 6 anzuwenden.
  8. Kochplatte (10), umfassend Heizelemente in einem Kochfeld (5) der Kochplatte (10), wobei jedes Heizelement ein Mittel zum Erhitzen eines Behälters bildet, wobei die Platte Kochherde (F1, F2, F3, F4) umfasst, die von einem oder mehreren Heizelementen gebildet werden, wobei die Kochherde (F1, F2, F3, F4) unabhängig auf dem Kochfeld (5) sind, dadurch gekennzeichnet, dass sie Steuermittel umfasst, die angepasst sind, um das Steuerungsverfahren nach einem der Ansprüche 1 bis 6 anzuwenden.
EP11184070.8A 2010-10-07 2011-10-06 Steuerverfahren bei Betrieb einer Reihe von Induktoren eines Induktionskochfeldes, und zugehöriges Induktionskochfeld Active EP2440008B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1003985A FR2966006B1 (fr) 2010-10-07 2010-10-07 Procede de commande en fonctionnement d'un ensemble d'inducteurs d'une table de cuisson a induction et table de cuisson a induction associee

Publications (3)

Publication Number Publication Date
EP2440008A2 EP2440008A2 (de) 2012-04-11
EP2440008A3 EP2440008A3 (de) 2012-11-14
EP2440008B1 true EP2440008B1 (de) 2016-08-03

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EP11184070.8A Active EP2440008B1 (de) 2010-10-07 2011-10-06 Steuerverfahren bei Betrieb einer Reihe von Induktoren eines Induktionskochfeldes, und zugehöriges Induktionskochfeld

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EP (1) EP2440008B1 (de)
ES (1) ES2600606T3 (de)
FR (1) FR2966006B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2846607B1 (de) 2013-09-05 2016-05-18 Electrolux Appliances Aktiebolag Induktionskochfeld mit einer Kochstelle mit drei oder mehr Induktionsspulen und Verfahren zur Steuerung einer Kochstelle
BE1028866B1 (de) * 2020-12-09 2022-07-12 Miele & Cie Vorrichtung zum Steuern einer Matrixsegmentanzeige für ein Haushaltsgerät, Haushaltsgerät mit Kochfeld, Matrixsegmentanzeige und Verfahren zum Steuern einer Matrixsegmentanzeige

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728132A1 (fr) 1994-12-09 1996-06-14 Bonnet Sa Dispositif de chauffage par induction de recipient et procede de commande d'un tel dispositif
FR2758934B1 (fr) * 1997-01-24 1999-04-23 Europ Equip Menager Foyer de cuisson par induction multi-usages
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
ES2331037B1 (es) * 2007-10-25 2010-09-21 Bsh Electrodomesticos España, S.A. Campo de coccion y procedimiento para el accionamiento de un campo de coccion.
FR2933840B1 (fr) * 2008-07-11 2014-09-26 Fagorbrandt Sas Procede de commande d'au moins un moyen de chauffage d'un appareil de cuisson
FR2936041B1 (fr) * 2008-09-18 2012-12-28 Fagorbrandt Sas Procede de commande d'une table de cuisson

Also Published As

Publication number Publication date
EP2440008A2 (de) 2012-04-11
ES2600606T3 (es) 2017-02-10
FR2966006A1 (fr) 2012-04-13
FR2966006B1 (fr) 2015-11-06
EP2440008A3 (de) 2012-11-14

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