EP2440012A2 - 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
EP2440012A2
EP2440012A2 EP11184065A EP11184065A EP2440012A2 EP 2440012 A2 EP2440012 A2 EP 2440012A2 EP 11184065 A EP11184065 A EP 11184065A EP 11184065 A EP11184065 A EP 11184065A EP 2440012 A2 EP2440012 A2 EP 2440012A2
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EP
European Patent Office
Prior art keywords
heating
inductors
hob
induction
control
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
EP11184065A
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English (en)
French (fr)
Other versions
EP2440012A3 (de
EP2440012B1 (de
Inventor
M. Xavier Andre
M. Didier Gouardo
Jean-Marc Bugeia
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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FagorBrandt SAS
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Publication date
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Publication of EP2440012A2 publication Critical patent/EP2440012A2/de
Publication of EP2440012A3 publication Critical patent/EP2440012A3/de
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Publication of EP2440012B1 publication Critical patent/EP2440012B1/de
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • 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 present invention relates to a control method in operation of a set of inductors of an induction hob.
  • an induction hob comprising a set of inductors distributed in a two-dimensional grid in a hob of said induction hob, adapted to implement the control method according to the invention.
  • the invention relates to the control in operation of the inductors in an induction hob having no predefined heating zones.
  • each heating zone is constituted on a case-by-case basis as a function of the position and the size of the container placed on the cooking surface under the hob. to a subset of inductors.
  • such an induction hob has the disadvantage of controlling each heating zone consisting of a subset of inductors as a function of a heating setpoint value requested by the user for heating the container disposed. on the heating zone.
  • the heating setpoint applied to each heating zone must be selected by the user even when the heating setpoint value to be applied is identical.
  • Such an operating mode of an induction hob is not very ergonomic and takes a long time to the user when the heating set point to be applied to each of the heating zones is identical.
  • the same set heating value to be applied to the different heating zones can be of interest especially when the food contained in each container on the hob requires an identical heat input, especially to grasp these foods or to simmer these foods. .
  • This time of selection of the heating setpoint value at each zone of heaters can not be used to take care of the preparation of dishes in progress.
  • JP 2010 205 720 A which describes an induction hob where the inductors are distributed in a two-dimensional grid in a hob of the induction hob.
  • An inductor pattern having one or more inductors that are turned on and one or more inductors that are turned off is selected by selection means.
  • a control unit controls the inductor (s) designated as activatable by the selected inductor pattern through the selection means in accordance with an indication entered by means of the control keyboard.
  • the present invention aims to solve the aforementioned drawbacks and to provide a control method in operation of a set of inductors of an induction hob, and an associated induction hob, for controlling the inductors by means of a single power control in a simple and fast way.
  • the present invention aims, in a first aspect, a control method in operation of a set of inductors of an induction hob, said inductors being distributed in a two-dimensional grid in a cooking hob of said induction hob, and each inductor being powered by an inverter supply device, said inductors forming means for heating a container and means for detecting the presence of a container.
  • the operating method of operating a set of inductors of an induction hob enables the drivers to be controlled by means of a single power control simply and quickly.
  • Such a control method in operation of a set of inductors of an induction hob makes it possible to control all the heating zones constituted respectively by a subset of inductors as a function of the same setpoint value.
  • the same determined heating rate is used so as to simplify the use of the induction hob and to minimize the time required to assign the same heating setpoint value to all the heating zones.
  • Such a control method in operation of a set of inductors of an induction hob makes it possible to control all the heating zones by a single power control, and consequently not to have to control each heating zone. independently.
  • the inductors distributed in a two-dimensional grid in the hob of the induction hob represent a single cooking zone to which a single heating setpoint is assigned to heat different containers arranged on the plane. Cooking.
  • each new heating zone detected on the hob following the addition of a new container on the hob is controlled power identically with respect to said at least one heating zone initially present on the hob. hob so as to avoid any new user command to apply the same heating setpoint value to this new heating zone.
  • the present invention aims, in a second aspect, an induction hob, comprising a set of inductors distributed in a two-dimensional grid in a cooking plane of said induction hob, each inductor being powered by a device of inverter power supply.
  • the induction hob includes control means adapted to implement the control method.
  • This induction hob has characteristics and advantages similar to those described above in relation to the control method according to the invention.
  • the hob 1 comprises heating means consisting of a set of inductors 2. These inductors 2 are distributed in a two-dimensional grid in a hob 3 of the induction hob 1.
  • the induction hob 1 comprises a plurality of elementary inductors 2 arranged under the cooking plane 3 so as to cover the entire surface of the latter.
  • the inductors 2 are here of circular shape and of equal diameter, which can be of the order of 80 millimeters.
  • the inductors can be of different shape and size, such as for example triangular, rectangular, or octagonal.
  • the inductors 2 are arranged in line in a direction, for example horizontal as illustrated in FIG. figure 1 , and the inductors 2 of each line are themselves arranged in staggered rows with the inductors 2 of the adjacent lines so as to best cover the hob 3.
  • the arrangement of the inductors in the hob is not limiting and may be different.
  • the hob 3 thus formed via the inductors 2 can be of any shape, for example square as illustrated in FIG. figure 1 .
  • the shape of the hob is not limiting and may be different, including rectangular, circular or oval.
  • Such an induction hob 1 does not have predefined delimited heating zones, each heating zone being determined case by case depending on the position and the size of a container placed on the hob 3 and covering a subset of inductors 2.
  • Each inductor 2 can be fed in a conventional manner by an inverter supply device (not shown), composed of a half-bridge power electronic structure or a quasi-resonant circuit power electronics structure.
  • the container presence detection can be implemented by measuring the effective current flowing in each inductor 2 since it is dependent on the surface covered by said inductor 2 by a container.
  • the inductors 2 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 1, comprising at least one or more microcontrollers, are able to control one or more containers placed on the hob 3 and apply operating powers to each zone. different or identical heaters which are dependent on the desired power demanded by the user for each container.
  • the induction hob 1 comprises a control keyboard 4 comprising at least selection means 5, such as for example touch keys or a touch screen, and display means 6, such as for example one or more lights made by means of light-emitting diodes and / or one or more displays that can be of the LCD type (acronym for the term Liquid Crystal Display).
  • selection means 5 such as for example touch keys or a touch screen
  • display means 6 such as for example one or more lights made by means of light-emitting diodes and / or one or more displays that can be of the LCD type (acronym for the term Liquid Crystal Display).
  • the control method in operation of a set of inductors of an induction hob is implemented following the operation of the induction hob 1, for example by pressing on a touch pad on-off.
  • the operating control method of a set of inductors 2 of an induction cooktop 1 makes it possible to control the inductors 2 by means of a single power control simply and quickly.
  • Such a control method in operation of a set of inductors 2 of an induction hob 1 makes it possible to control all the heating zones Z1 constituted respectively by a subset of inductors 2 as a function of a same identical heating set point value so as to simplify the use of the induction hob 1 and to minimize the time required to assign the same heating set point value to all the heating zones Z1.
  • Such a control method in operation of a set of inductors 2 of an induction cooktop 1 makes it possible to control all the heating zones Z1 by a single power control, and consequently not to have to control each heating zone Z1 independently.
  • the inductors 2 distributed in a two-dimensional grid in the hob 3 of the induction hob 1 represent a single cooking zone to which a heating set point is assigned to heat different containers arranged on the hob 3.
  • the step of detecting at least one heating zone Z1 is preceded by a step of acquiring an input signal triggering said detection step so as to search for the presence of at least one container disposed on the plane cooking 3.
  • the step of acquiring a control input signal from all the heating zones Z1 of the hob 3 to an identical determined heating setpoint value is input through control means 4, 5, 6 of the induction hob 1.
  • the control means 4, 5, 6 of the induction hob 1 making it possible to select this operating mode in which all the heating zones Z1 of the hob 3 are controlled at an identical predetermined heating set point can for example be one or more sensitive keys, or the sensitive part of a touch screen.
  • control means of the induction hob for acquiring a control input signal of all the heating zones of the hob to an identical determined heating set point are in no way limiting. and can be different.
  • the heating setpoint value corresponds to a setpoint value entered through the control means 4, 5, 6 of the induction cooktop 1 making it possible to control the inductors of each heating zone Z1 in power.
  • the power value applied at the level of each inductor 2 of a heating zone Z1 can be different, in particular, depending on the size and / or position of the corresponding container disposed on the hob 3.
  • the acquisition of a command input signal from all the heating zones Z1 of the hob 3 to an identical determined heating setpoint value is input through control means 4, 5, 6 of the induction hob 1 when a menu for selecting different operating modes is displayed on at least one display 6 of the induction hob 1.
  • the step of acquiring a control input signal from all of the heating zones Z1 of the hob 3 to an identical determined heating setpoint may be preceded by a step of acquiring an operating mode change input signal of the induction hob 1 through the selection means 5 of the control keyboard 4.
  • said at least one display means 6 can display the various operating modes of the induction hob 1 so as to allow the user to select one of the operating modes, in particular one where all the zones of Z1 heaters are controlled with the same set heating value.
  • said at least one heating zone Z1 is controlled by means of the control unit of the Induction hob 1 to an identical heating set point applied for all heating zones Z1 of the hob 3.
  • the method also comprises at least the following step: modification of the identical heating setpoint value applied for all the heating zones Z1 of the hob 3.
  • this step of modifying the identical heating setpoint value applied for all the heating zones Z1 of the hob 3 makes it possible to adjust this heating set point value to that desired by the user according to his need.
  • the modification of the identical heating set point value applied for all the heating zones Z1 of the hob 3 can be performed from the stored heating setpoint value during the factory setting of the heating unit. control of the induction hob 1, or from a heating set point previously stored by the user in the control unit of the induction hob 1.
  • step of modifying the identical heating set point value applied to all of the heating zones Z1 is input through control means 4, 5, 6 of the induction hob 1.
  • the control means 4, 5, 6 of the induction hob 1 making it possible to modify the identical heating set point value applied to all the heating zones Z1 can be for example one or more sensitive keys, or else the sensitive part of a touch screen.
  • control means of the induction hob for changing the identical heating set value applied to all the heating zones are in no way limiting and may be different.
  • the method also comprises at least the following step: storage of the identical heating setpoint value modified.
  • the last identical heating setpoint value applied for all the heating zones Z1 of the hob 3 is kept in a memory of the control unit of the induction hob 1, especially at the level of at least one microcontroller, so as to allow the user to use the last identical heating setpoint value modified at the next use of this operating mode.
  • This storage step can be implemented automatically by means of the control unit of the induction hob 1 after each modification of the identical heating set point value, or manually by a control of the hob. user through the selection means 5 of the control keyboard 4.
  • each new heating zone Z2 detected on the hob 3 following the addition of a new container on the hob 3 is controlled in power identically with respect to said at least one Z1 heating zone present initially on the cooking plane 3 so as to avoid any new command from the user to apply the same heating setpoint value to this new heating zone Z2.
  • the step of detecting at least one new heating zone Z2 on said cooking plane 3 may be preceded by a step of acquiring an input signal of adding a new container so as to start a step of searching for a new heating zone Z2.
  • This step of acquiring an input signal for adding a new container can be implemented through the selection means 5 of the control keyboard 4.
  • the method also comprises at least the following step: displaying the identical heating setpoint value applied to all the heating zones Z1 on at least one display means 6.
  • the user can view the heating setpoint value applied to all of the heating zones Z1 of the induction hob 1.
  • This identical heating setpoint value applied to all of the heating zones Z1 of the induction hob 1 can be displayed on said at least one display means 6 in a unique manner for all the heating zones Z1. , or depending on each heating zone Z1.
  • Said at least one display means 6 is preferably a graphical type of display, such as for example the LCD (acronym for the English term Liquid Crystal Display) which can be monochrome or color.
  • LCD liquid crystal Display
  • This graphic display device allows the representation of graphic objects, such as, for example, the heating zone (s) Z1 of the hob 3, from the information collected by a control unit of the induction hob 1 comprising at least one microcontroller, where the information collected may include the presence or absence of one or more containers on the cooking plane 3, the position and / or the size of the container or containers detected.
  • the method may comprise a step of representing said at least one heating zone Z1 detected on at least one display means 6 following the step of detecting at least one heating zone Z1.
  • the user can visualize the location of said at least one heating zone Z1 on said at least one display means 6 with respect to the position of the corresponding container disposed on the hob 3.
  • the acquisition of a control input signal from each heating zone Z1 of the hob 3 to a heating setpoint value allocated independently with respect to the other heating zones Z1 of the hob 3 allows to switch from an operating mode in which all the heating zones Z1 are controlled with a heating setpoint value identical to an operating mode in which each heating zone Z1 is controlled with a heating setpoint value of its own. so to return to a traditional mode of operation.
  • heating Z1 of the hob 3 is followed by a step of controlling said at least one heating zone Z1 detected with a heating setpoint value previously assigned in the operating mode where each heating zone Z1 of the hob 3 is controlled at a heating setpoint value assigned independently with respect to the other heating zones Z1 of the hob 3.
  • the default heating setpoint assigned to each heating zone Z1 is that of this operating mode during a previous use.
  • heating Z1 of the hob 3 is followed by a step of controlling said at least one heating zone Z1 detected with the same previous heating setpoint value.
  • the heating setpoint value assigned by default to each heating zone Z1 is that of the previous operating mode in which all the heating zones Z1 are controlled with an identical heating setpoint value.
  • the heating setpoint value assigned to each heating zone Z1 can then be modified through the selection means. 5 of the control keyboard 4 according to the wishes of the user.
  • This step of acquiring a control input signal from each heating zone Z1 of the hob 3 to a heating setpoint value allocated independently with respect to the other heating zones Z1 of the hob 3 may be preceded by a step of acquiring an operating mode change input signal of the induction hob 1 through the selection means 5 of the control keyboard 4.
  • said at least one display means 6 can display the various operating modes of the induction hob 1 so as to allow the user to select a different operating mode, in particular one where each heating zone Z1 of the hob 3 is controlled to a heating setpoint value assigned independently with respect to the other heating zones Z1 of the hob 3 of the one being executed, in particular that where all the heating zones Z1 are controlled with an identical heating setpoint.
  • the induction hob 1 comprises control means provided with a control unit.
  • the control unit comprises at least one electronic card provided with at least one microcontroller capable of implementing the control method in operation of an induction hob according to the invention.
  • control unit in particular controls the inductors 2 so as to apply a heating setpoint value identical to all the heating zones of the induction hob in a dedicated operating mode, as described above.
  • the method of operating a set of inductors of an inductive hob makes it possible to control all the heating zones constituted respectively by a subset of inductors as a function of the same identical heating set point value so as to simplify the use of the induction hob and to minimize the time required to assign the same heating set point value to all the heating zones.
  • the present invention is neither limited in the number of inductors distributed in a two-dimensional grid in the hob of the induction hob, nor in the number of heating zones that can be defined on the hob. from the position of a container covering a subset of inductors.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)
  • General Induction Heating (AREA)
EP11184065.8A 2010-10-07 2011-10-06 Steuerverfahren bei Betrieb einer Reihe von Induktoren eines Induktionskochfeldes, und zugehöriges Induktionskochfeld Active EP2440012B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1003984A FR2966005B1 (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
EP2440012A2 true EP2440012A2 (de) 2012-04-11
EP2440012A3 EP2440012A3 (de) 2012-11-07
EP2440012B1 EP2440012B1 (de) 2016-08-03

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EP11184065.8A Active EP2440012B1 (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) EP2440012B1 (de)
ES (1) ES2600875T3 (de)
FR (1) FR2966005B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2941091A1 (de) * 2014-04-30 2015-11-04 Electrolux Appliances Aktiebolag Kochfeld mit frei konfigurierbarer Heizanordnung und Berührungsbildschirmsteuerung, Verfahren zum Betreiben eines Kochfelds mit frei konfigurierbarer Heizanordnung und Berührungsbildschirmsteuerung und Computerprogrammprodukt
US11064574B2 (en) 2013-09-05 2021-07-13 Electrolux Appliances Aktiebolag Induction cooking hob including a cooking area with three or more induction coils and a method for controlling a cooking area
FR3118389A1 (fr) * 2020-12-22 2022-06-24 Groupe Brandt Procédé de fonctionnement d’une table de cuisson à induction sur laquelle est posé un élément ferromagnétique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2719651B2 (es) * 2018-01-08 2019-12-18 Bsh Electrodomesticos Espana Sa Dispositivo de campo de coccion
ES2719650A1 (es) * 2018-01-08 2019-07-11 Bsh Electrodomesticos Espana Sa Dispositivo de campo de coccion

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863039A1 (fr) 2003-11-27 2005-06-03 Brandt Ind Procede de chauffage d'un recipient pose sur une table de cuisson a moyens de chauffage associe a des inducteurs
JP2010205720A (ja) 2009-02-06 2010-09-16 Panasonic Corp 加熱調理器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872258B1 (fr) * 2004-06-25 2006-11-10 Brandt Ind Sas Table de cuisson a plusieurs zones de cuisson
FR2895639B1 (fr) * 2005-12-27 2008-02-29 Brandt Ind Sas Foyer de cuisson par induction de taille variable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863039A1 (fr) 2003-11-27 2005-06-03 Brandt Ind Procede de chauffage d'un recipient pose sur une table de cuisson a moyens de chauffage associe a des inducteurs
JP2010205720A (ja) 2009-02-06 2010-09-16 Panasonic Corp 加熱調理器

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11064574B2 (en) 2013-09-05 2021-07-13 Electrolux Appliances Aktiebolag Induction cooking hob including a cooking area with three or more induction coils and a method for controlling a cooking area
US11700675B2 (en) 2013-09-05 2023-07-11 Electrolux Appliances Aktiebolag Induction cooking hob including a cooking area with three or more induction coils and a method for controlling a cooking area
EP2941091A1 (de) * 2014-04-30 2015-11-04 Electrolux Appliances Aktiebolag Kochfeld mit frei konfigurierbarer Heizanordnung und Berührungsbildschirmsteuerung, Verfahren zum Betreiben eines Kochfelds mit frei konfigurierbarer Heizanordnung und Berührungsbildschirmsteuerung und Computerprogrammprodukt
WO2015165694A1 (en) * 2014-04-30 2015-11-05 Electrolux Appliances Aktiebolag Hob with free configurable heating array and touchscreen control, method for operating a hob with free configurable heating array and touchscreen control and computer program product
CN106233074A (zh) * 2014-04-30 2016-12-14 伊莱克斯家用电器股份公司 具有可自由配置的加热阵列和触摸屏控制装置的灶具、用于操作具有可自由配置加热阵列和触摸屏控制装置的灶具的方法及计算机程序产品
US10136479B2 (en) 2014-04-30 2018-11-20 Electrolux Appliances Aktiebolag Hob with free configurable heating array and touchscreen control, method for operating a hob with free configurable heating array and touchscreen control and computer program product
FR3118389A1 (fr) * 2020-12-22 2022-06-24 Groupe Brandt Procédé de fonctionnement d’une table de cuisson à induction sur laquelle est posé un élément ferromagnétique
EP4021144A1 (de) * 2020-12-22 2022-06-29 Groupe Brandt Verfahren zum betrieb eines induktionskochfelds mit einem darauf platzierten ferromagnetischen element

Also Published As

Publication number Publication date
FR2966005A1 (fr) 2012-04-13
EP2440012A3 (de) 2012-11-07
EP2440012B1 (de) 2016-08-03
FR2966005B1 (fr) 2015-11-06
ES2600875T3 (es) 2017-02-13

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