EP1580487B1 - Plaque de cuisson controlé de manière électronique avec plusieurs plaques électriques et procédé pour son opération - Google Patents

Plaque de cuisson controlé de manière électronique avec plusieurs plaques électriques et procédé pour son opération Download PDF

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Publication number
EP1580487B1
EP1580487B1 EP05004406A EP05004406A EP1580487B1 EP 1580487 B1 EP1580487 B1 EP 1580487B1 EP 05004406 A EP05004406 A EP 05004406A EP 05004406 A EP05004406 A EP 05004406A EP 1580487 B1 EP1580487 B1 EP 1580487B1
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EP
European Patent Office
Prior art keywords
ring
hob
cooking vessel
selection
cooking
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.)
Not-in-force
Application number
EP05004406A
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German (de)
English (en)
Other versions
EP1580487A1 (fr
Inventor
Baier Martin
Knappe Gerd
Mathias Bellm
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau 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 EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP1580487A1 publication Critical patent/EP1580487A1/fr
Application granted granted Critical
Publication of EP1580487B1 publication Critical patent/EP1580487B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • 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
    • H05B2213/05—Heating plates with pan detection means

Definitions

  • the invention relates to a cooktop with a plurality of burners according to the preamble of claim 1 and a method for operating such a cooktop, which may be electronically controlled in particular.
  • the invention has for its object to provide an aforementioned cooktop and an aforementioned method with which the problems and disadvantages of the prior art can be avoided and hobs and their operation can be further developed, in particular a selection of a hotplate at any possible Operating conditions can be improved.
  • such a hob has a selection device for each hotplate, with which it can be selected in preparation for an operator initiated or desired change in the operating state of the hotplate.
  • a change of the operating state is preferably a change of the power.
  • the selection device has an actuation sensor or such a device.
  • the actuation sensor is designed such that it detects a touch of a cooking vessel on this hotplate by an operator. Such a touch evaluates the hob as a selection of this hotplate to allow depending on a user-dependent change in the operating state of the cooking position by further operator inputs.
  • a touch or a touch of a cooking vessel is detected by the hob and this cooking vessel or the relevant hotplate is assigned. From the point of view, this is regarded as a selection of the cooking area in order to change the operating state of this cooking area depending on known methods. So can be dispensed with further input elements or controls such as the aforementioned select buttons. Furthermore, an instinctive selection of a cooking position by touching the cooking vessel on top of it is possible. Finally, it has been found in the context of investigations of this invention that in many cases, a touch of the cooking vessel, for example when lifting the lid or while stirring with simultaneous holding takes place. In practice, these actions are often followed by changes, at least to the power setting of the hotplate, since the operating state is recognized as undesirable. Thus, the selection of cooking zones to be changed happens almost automatically or by itself. In addition to the savings effect of a so-called selection key, an operator can in many cases even be spared even the selection process itself.
  • an actuation sensor basically different types of sensors can be used, which detect the touching of the cooking vessel.
  • This can be a so-called capacitive sensor, as it is for example in the DE 42 24 934 A is described.
  • it may be an inductive sensor, which may, for example, have a coil shape.
  • Such an inductive sensor is for example in the DE 196 03 845 A disclosed.
  • an actuation sensor detects a slight movement of the cooking vessel, for example a slight back and forth by a few centimeters. Such a process can be detected in addition to the usual, above-described method by optical sensors or the like above the hob and sensors for vibration or acceleration under the hob.
  • an actuation sensor may simultaneously be a so-called cooking vessel detection sensor, also known as pan detection.
  • a cooking vessel detection sensor also known as pan detection.
  • the actuation sensor is arranged below the hob or a hob plate. So he does not disturb the appearance, is easy to install or provide on the hob and is also from impairment such as pollution or like protected.
  • a hob plate is advantageously made of glass ceramic, which is permeable to the aforementioned sensors.
  • even more actuation sensors can be provided per selection device or per hotplate. These are advantageously arranged at different positions. Thus, an adaptation to possible different sizes of a cooking vessel can take place on this cooking point, for example in a multi-circuit heating.
  • the plurality of actuation sensors can be arranged in cooperation with possible sizes of the cooking vessel so that depending on the size of the cooking vessel only one actuation sensor responds to the touch of a cooking vessel.
  • common control elements are provided for the operator-dependent change of the operating state of the hotplate, for example a setting of a power, which have the function assigned to them exactly the same for all cooking zones.
  • these are a so-called plus and minus control with which the power can be increased or decreased continuously or in stages. If a hotplate is selected by touching the cooking vessel placed on top of it, then the common operating elements are aligned with this hotplate or their function changes the operating state of this hotplate.
  • a feedback is issued to an operator, which indicates a selection state or a change in the operating state of a hotplate. If, for example, a selection is recognized as such, a feedback can be sent to the operator. This can be done visually or acoustically.
  • a hotplate for a certain time is maintained as such, so to speak to give the operator time to change the operating state.
  • Such a time period should be in the range of several seconds, for example a maximum of 10 seconds. Thus, incorrect operation can be avoided by too long selection times.
  • the selection of a cooking station is canceled immediately when an inappropriate operating state occurs or, for example, another cooking is selected. Either then this additional cooking area is selected or just the selection of the previous ones canceled.
  • a selection is recognized as such when a standing on the hob cooking vessel is touched for a certain time.
  • This time should also be in the range of seconds, preferably at least one second. It can thus be avoided that a selection takes place in the case of a fleeting contact, which, due to its short time, can actually only be unintentional.
  • a so-called inductive cooking vessel detection sensor used as an actuation sensor and evaluated with Schwingnikvertician, it can be operated at a higher frequency to detect a touch of the cooking vessel.
  • this frequency may be in the range of 2 MHz to 30 MHz, preferably between 8 MHz and 20 MHz. This is due to the applied evaluation method of frequency measurement.
  • FIG. 1 An embodiment of the invention is in different variants in the Fig. 1 shown schematically and will be described in more detail below. It shows Fig. 1 a schematic perspective view of a cooking hob according to the invention with four burners and serving as a selector cooking vessel detection.
  • a hob 11 is shown in an oblique view, in which the invention is implemented in two variants.
  • the hob 11 has a glass ceramic plate 12 which forms the surface.
  • On the glass ceramic plate 12 a plurality of hotplates 14a - d are provided, as in a conventional hob, namely approximately evenly distributed. They can be identified by corresponding markings on the upper side of the glass-ceramic plate 12, for example corresponding printing or the like.
  • switchable multi-circuit cooking be it in round or oblong shape.
  • a heater 16a-d is provided in each case. These are in particular in glass ceramic plates 12 so-called radiant heaters. Alternatively, induction heaters could be used, with the type of heater used for the invention not playing any role in this regard.
  • Each of the heaters 16a-d is controlled by a controller 18 and energized according to a selected cooking or power level.
  • the power switches 20a-d are provided, namely one for each heater 16.
  • touch switches 21 which are arranged on the right edge of the glass ceramic plate 12 and have corresponding markings on the top of the plate, the operation of the hob 11 can be done, for example, as setting a cooking or power level for the heater 16 a hob 14.
  • the touch switches 21 are provided with plus and minus symbols to increase or decrease the power.
  • the touch switches 21 can For example, be designed as a capacitive touch switch and be so-called touch buttons or switches. In addition to capacitive operating principles and optical or other can be used, as mechanical switches or the like are possible. By placing a finger 27, the touch switches 21 can be operated according to their function.
  • a cooking vessel recognition sensor 22a which has an approximately coil shape and is connected to the controller 18, is provided below the cooking point 14a.
  • a sensor is for example in the EP 788 293 A which is expressly referred to in terms of possible implementations.
  • Such a cooking vessel detection sensor 22a is usually used to detect the placement of a cooking vessel 25a on the cooking area 14a and only then to enable power to the heater 16a. Thus, a malfunction of a hotplate or an associated heater without attached cooking vessel from which either a risk of burn or at least energy loss would be avoided.
  • two cooking vessel detection sensors 22d which are not formed in coil form, are arranged underneath the cooking point 14d, but form two individual surfaces which are arranged approximately opposite one another with respect to the size of the cooking point 14d at its edge.
  • This cooking vessel detection sensors 22d may have a capacitive operating principle, as for example from the DE 42 24 934 A is known. Although another functional principle is used. However, the purpose is the same, namely the detection of presence, education and possibly also the size of a vessel placed on the cooking area associated with the cooking vessel detection sensor.
  • a so-called selection also referred to as selection, must take place. This is used to determine at which cooking point 14 the cooking or power level is changed during a subsequent process. If a cooking vessel 25 is set up, this is recognized by the cooking vessel detection sensor 22 together with the controller 18. The controller 18 evaluates this as a selection of the corresponding hotplate 14. This means that a subsequent actuation of the touch switch 21 for the state of this particular hotplate 14 and the associated heater 16 applies. This is in itself in this way from the prior art in the form of DE 102 11 047 known.
  • this selection state may be maintained a few seconds, for example 3 to 10 seconds after selecting a hotplate by touching the cooking vessel 25 thereon with a finger 27.
  • a user is given sufficient time to change their performance or condition after selecting a particular hotplate.
  • the selection of the hotplate advantageously switches to the last actuated or the selection of the cooking surface activated first is canceled.
  • a corresponding signal is output to a user, either optically or acoustically. It is not necessary to continue to touch the cooking vessel 25 during the change of the state of the hotplate via the touch switches 21. A single touch, possibly with a minimum of time required, may be considered sufficient.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Stoves And Ranges (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Claims (14)

  1. Plaque de cuisson (11) avec plusieurs zones de cuisson (14), sur lesquelles peut être posé respectivement un récipient de cuisson (25) pour chauffer le contenu du récipient, avec un dispositif de sélection pour chaque zone de cuisson pour la sélection préalable à une modification, par l'utilisateur, de l'état de marche, caractérisée en ce que le dispositif de sélection présente un capteur d'actionnement (22) conçu de telle manière qu'il détecte un contact exercé par un utilisateur sur un récipient de cuisson (25) se trouvant sur cette zone de cuisson (14), sachant que la plaque de cuisson (11) l'interprète comme une sélection de la zone de cuisson permettant la modification, par l'utilisateur, de l'état de marche de la zone de cuisson par une opération supplémentaire réalisée par l'utilisateur.
  2. Plaque de cuisson selon la revendication 1, caractérisée en ce que le capteur d'actionnement est un capteur d'actionnement capacitif, sachant qu'il présente en particulier une surface de détection (22d).
  3. Plaque de cuisson selon la revendication 1, caractérisée en ce que le capteur d'actionnement est un capteur (22a) fonctionnant de manière inductive, de préférence en forme de bobine.
  4. Plaque de cuisson selon l'une des revendications précédentes, caractérisée en ce que le capteur d'actionnement (22) est à la fois un capteur de détection de récipient de cuisson.
  5. Plaque de cuisson selon l'une des revendications précédentes, caractérisée en ce que le capteur d'actionnement (22) est disposé au-dessous de la plaque de cuisson (11) ou au-dessous d'une surface formant la plaque de cuisson (12) laquelle est composée de préférence de vitrocéramique.
  6. Plaque de cuisson selon l'une des revendications précédentes, caractérisée en ce que sont prévus plusieurs capteurs d'actionnement (22d) par dispositif de sélection et par zone de cuisson (14d) à différents endroits de la zone de cuisson, sachant que les différents capteurs d'actionnement (22d) sont respectivement activables en fonction de la taille du récipient de cuisson (25).
  7. Plaque de cuisson selon l'une des revendications précédentes, caractérisée en ce qu'elle présente plusieurs éléments de commande (21) communs pour la modification, par l'utilisateur, de l'état de marche de la zone de cuisson (14), en particulier le réglage d'une puissance de chacune des différentes zones de cuisson, de préférence un élément de commande d'augmentation et de réduction pour toutes les zones de cuisson, sachant qu'après sélection d'une zone de cuisson par le capteur d'actionnement (22) suite au contact d'un récipient de cuisson (25), la puissance de cette même zone de cuisson peut être modifiée en conséquence en actionnant de manière correspondante les éléments de commande.
  8. Procédé pour le fonctionnement d'une plaque de cuisson selon l'une des revendications précédentes, caractérisé en ce que le contact d'un récipient de cuisson (25) se trouvant sur une zone de cuisson (14) entraîne la sélection de cette même zone de cuisson pour la modification, par l'utilisateur, de son état de marche, sachant que l'état de marche est modifié en utilisant d'autres éléments de commande (21) de la plaque de cuisson, en particulier pour modifier la puissance.
  9. Procédé selon la revendication 8, caractérisé en ce qu'après la sélection d'une zone de cuisson (14) par contact d'un récipient de cuisson (25) se trouvant sur celle-ci, un message est délivré à un utilisateur, ce message étant de préférence optique et/ou acoustique.
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce qu'une zone de cuisson (14) n'est considérée comme sélectionnée que lorsque le récipient de cuisson (25) se trouvant dessus a été manipulé par un utilisateur pendant une certaine période de temps dans une plage de secondes, de préférence au moins une seconde.
  11. Procédé selon l'une des revendications 8 à 10, caractérisé en ce que la sélection de la zone de cuisson (14) est maintenue pendant un certain temps, de préférence 10 secondes au maximum.
  12. Procédé selon l'une des revendications 8 à 11, caractérisé en ce que la sélection d'une zone de cuisson (14) est immédiatement annulée lorsqu'une autre zone de cuisson a été sélectionnée par manipulation d'un récipient de cuisson (25) se trouvant sur celle-ci.
  13. Procédé selon l'une des revendications 8 à 12, caractérisé en ce qu'aucune sélection n'a lieu lorsque plusieurs récipients de cuisson (25) sont manipulés simultanément ou de manière coïncidente sur différentes zones de cuisson (14), sachant qu'un signal d'avertissement est de préférence émis à l'attention de l'utilisateur.
  14. Procédé selon une des revendications 8 à 13, caractérisé en ce qu'un capteur inductif de détection de récipient de cuisson (22) est utilisé en tant que capteur d'actionnement, sachant qu'il est utilisé de préférence avec une fréquence proche de la résonance propre.
EP05004406A 2004-03-02 2005-03-01 Plaque de cuisson controlé de manière électronique avec plusieurs plaques électriques et procédé pour son opération Not-in-force EP1580487B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004011749 2004-03-02
DE102004011749A DE102004011749A1 (de) 2004-03-02 2004-03-02 Elektronisch gesteuertes Kochfeld mit mehreren Kochstellen und Verfahren zum Betrieb eines solchen Kochfeldes

Publications (2)

Publication Number Publication Date
EP1580487A1 EP1580487A1 (fr) 2005-09-28
EP1580487B1 true EP1580487B1 (fr) 2009-07-01

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EP05004406A Not-in-force EP1580487B1 (fr) 2004-03-02 2005-03-01 Plaque de cuisson controlé de manière électronique avec plusieurs plaques électriques et procédé pour son opération

Country Status (4)

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EP (1) EP1580487B1 (fr)
AT (1) ATE435401T1 (fr)
DE (2) DE102004011749A1 (fr)
ES (1) ES2329379T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102644943A (zh) * 2012-03-19 2012-08-22 孙皓然 防溢漏电磁炉

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Publication number Priority date Publication date Assignee Title
FR2879724B1 (fr) 2004-12-21 2012-11-09 Brandt Ind Procede de commande d'une table de cuisson et table de cuisson associee
DE102005041028A1 (de) * 2005-08-23 2007-03-01 E.G.O. Elektro-Gerätebau GmbH Elektronisch gesteuertes Kochfeld mit mehreren Kochstellen und Verfahren zum Betrieb eines solchen Kochfeldes
DE102005047186A1 (de) * 2005-09-26 2007-03-29 E.G.O. Elektro-Gerätebau GmbH Schaltungsanordnung zur Auswertung eines Sensorzustands
DE102007034703A1 (de) 2007-07-18 2009-01-22 E.G.O. Elektro-Gerätebau GmbH Bedieneinrichtung für ein Elektrogerät wie ein Kochfeld odgl. und Anordnung derselben
FI122808B (fi) * 2009-02-24 2012-07-13 Marimils Oy Tasoelektrodijärjestelmä
DE102009034203A1 (de) 2009-07-16 2011-01-20 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betrieb eines Kochfelds
EP2741571B1 (fr) * 2012-12-05 2017-01-11 BSH Hausgeräte GmbH Dispositif de champ de cuisson
ES2948067T3 (es) * 2013-07-09 2023-08-30 Bsh Hausgeraete Gmbh Campo de cocción
DE102019128303B3 (de) 2019-10-21 2020-12-10 Miele & Cie. Kg Verfahren zum Betrieb eines Kochsystems sowie Kochfeld und Gargeschirr
DE202022106277U1 (de) 2022-11-09 2022-11-16 Termacook Gmbh Sensorgesteuertes Kochfeld
DE102022129549A1 (de) 2022-11-09 2024-05-16 Termacook Gmbh Sensorgesteuertes Kochfeld
DE202023103051U1 (de) 2023-06-02 2023-06-16 Termacook Gmbh Kochfeld mit integriertem Abzug und mit Beleuchtung, Verwendung des Kochfeldes zur Beleuchtung

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DE29521593U1 (de) * 1995-02-21 1997-10-16 Thielmann Ag Kg Herdmulde
DE19603845B4 (de) * 1996-02-05 2010-07-22 E.G.O. Elektro-Gerätebau GmbH Elektrischer Strahlungsheizkörper mit einem aktiven Sensor zur Kochgefäßerkennung
DE19825321C1 (de) * 1998-06-05 2000-02-10 Bsh Bosch Siemens Hausgeraete Kochfeld mit Bedieneinheit zur Vorgabe der Leistungsstufe und Verfahren zum Einstellen der Leistungsstufe eines Heizelementes eines Kochfeldes
DE10042775A1 (de) * 2000-08-31 2002-03-14 Diehl Ako Stiftung Gmbh & Co Topferkennung
ES2246000T3 (es) * 2001-05-07 2006-02-01 E.G.O. Elektro-Geratebau Gmbh Disposicion de interruptores tactiles y procedimiento de mando del interruptor tactil.
DE10211047B4 (de) * 2002-03-13 2005-10-06 Cherry Gmbh Anordnung zur Steuerung eines Kochfeldes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102644943A (zh) * 2012-03-19 2012-08-22 孙皓然 防溢漏电磁炉
CN102644943B (zh) * 2012-03-19 2016-08-10 孙皓然 防溢漏电磁炉

Also Published As

Publication number Publication date
ES2329379T3 (es) 2009-11-25
ATE435401T1 (de) 2009-07-15
DE502005007599D1 (de) 2009-08-13
DE102004011749A1 (de) 2005-09-15
EP1580487A1 (fr) 2005-09-28

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