EP1758431A2 - Plaque de cuisson commandée électroniquement comportant plusieurs feux et le procédé de commande de tels feux - Google Patents

Plaque de cuisson commandée électroniquement comportant plusieurs feux et le procédé de commande de tels feux Download PDF

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Publication number
EP1758431A2
EP1758431A2 EP06017019A EP06017019A EP1758431A2 EP 1758431 A2 EP1758431 A2 EP 1758431A2 EP 06017019 A EP06017019 A EP 06017019A EP 06017019 A EP06017019 A EP 06017019A EP 1758431 A2 EP1758431 A2 EP 1758431A2
Authority
EP
European Patent Office
Prior art keywords
cooking
hob
cooking vessel
operating
sensor
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
EP06017019A
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German (de)
English (en)
Other versions
EP1758431B1 (fr
EP1758431A3 (fr
Inventor
Georg Fischer
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.)
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Publication date
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Priority to PL06017019T priority Critical patent/PL1758431T3/pl
Publication of EP1758431A2 publication Critical patent/EP1758431A2/fr
Publication of EP1758431A3 publication Critical patent/EP1758431A3/fr
Application granted granted Critical
Publication of EP1758431B1 publication Critical patent/EP1758431B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • 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 an electronically controlled cooktop with a plurality of cooking zones according to the preamble of claim 1 and a method for operating such a cooktop.
  • hobs To operate, for example, hobs, it is known to use as controls various switches, such as mechanical pressure switch or so-called touch switch. This makes it possible, on the one hand, to switch the entire hob on or off. Furthermore, operating functions can be carried out on the cooktop with it, for example a selection of a hotplate or a change of their power level.
  • switches such as mechanical pressure switch or so-called touch switch.
  • the invention is based on the object to provide an aforementioned cooktop and an aforementioned method with which problems and disadvantages of the prior art can be avoided and hobs and their operation can be further developed advantageous, in particular an operating function on the hob improved way can be done.
  • the hob has a control and at least one actuation sensor, wherein the actuation sensor recognizes the setting up of a cooking vessel or touching a cooking vessel erected on the hob or a cooking area.
  • This recognition advantageously takes place in that an operator touches the cooking vessel, which must be metallic for this purpose, and thus makes electrical contact, or thus, so to speak, switches in series to the cooking vessel.
  • the actuation sensor and the controller are designed such that the touch of a cooking vessel on a hotplate, regardless of whether the cooking vessel was already on it or has just been set up, is detected by an operator and interpreted as an operation on the hob or is valued. This forms the set up on a hotplate Cooking vessel together with the actuation sensor on the hob a touch switch for an operator, as it can be used to operate the hob with a corresponding operating function or is known in other ways from the prior art.
  • the invention it is possible by the invention to turn on by the novel touch of the cooking vessel, the hob or certain functions to cause or trigger and not only by special and usual provided on the hob switches or other controls. It is also very comfortable possible, for example, by setting up a cooking vessel on a particular hob of the off cooktop this turn on. It may be secondary, whether the cooking vessel must first be placed on the hotplate or an already placed cooking vessel is touched. Finally, the hob or actuator detects that a cooking vessel is being touched. If this is done according to a possibly provided pattern, it is understood as an operating function in the sense of switching on the hob. Likewise, it is possible, alternatively to switching on the hob by touching a set-up cooking vessel or setting up such to a hotplate to select or select this hotplate.
  • a switch on or a selection of the cooking zones to be changed happens almost automatically or by itself.
  • an operator can be facilitated the operation in many cases.
  • actuation sensors 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 and in which DE 196 03 845 A is 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, in addition to conventional methods described above, by optical sensors or the like. Above the hob and sensors for vibration or acceleration can be detected under the hob.
  • an actuation sensor may simultaneously be a so-called cooking vessel detection sensor, also known as cooking vessel detection or pan detection.
  • cooking vessel detection sensor also known as cooking vessel detection or 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 odgl from deterioration such as pollution. protected.
  • a hob plate is advantageously made of glass ceramic, which is permeable to the aforementioned sensors.
  • even more actuation sensors may be provided 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.
  • the hob or the controller are designed so that several or different operating functions of the hob can be made via the operating sensor with contact of the cooking vessel by an operator. This concerns, for example, the switching on of the hob as well as possibly a selection function of a hotplate for subsequent, hob-specific settings such as power, additional heaters or timer functions.
  • common operating elements are provided for the operator-dependent change of the operating state of the cooking area, 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 one minus control, with which the power can be increased or decreased continuously or in steps. If the hob is switched on by setting up a cooking vessel or touching a raised cooking vessel, it is ready for use. If a hotplate is subsequently selected by touching the cooking vessel placed thereon, then the common operating elements are aligned with this hotplate or their function changes the operating state of this hotplate. It can also be provided that by setting up or touching a cooking vessel, the hob is turned on and at the same time, so without further contact, the hotplate on which the touched cooking vessel is selected.
  • a feedback is issued to an operator indicating a selection state or a change in the operating state of a cooking station. If, for example, the hob is switched on, feedback can be sent to the operator. This can be optical or acoustic, advantageously both.
  • a cooking vessel must be touched several times.
  • it can also be provided to encode or mark, as it were, different operating functions by means of a different number of necessary contacts or their type, for example via long or short contact times and pauses of varying lengths, and trigger them differently.
  • it is possible, for example, to be able to switch on the hob according to the invention only when a placed cooking vessel is touched twice or three times.
  • such a multiple touch occurs within a certain predetermined maximum time. This makes it possible to rule out incorrect operation.
  • a safety measure it is possible to monitor, via the control or the actuation sensors, whether the cooking vessel has been moved while the cooking vessel is being touched or when it is touched several times between touching operations.
  • Such a movement of the cooking vessel may mean that the cooking vessel is merely installed or moved, but no operating function is to be triggered.
  • the method according to the invention is characterized in that a cooking vessel is placed on a cooking area or already set up for the operation of a cooking hob described above. If it is touched by an operator within the scope of this, then this is evaluated via the actuation sensor as an actuation of a control element for inputting an operating command of an operating function and the hob responds accordingly.
  • 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 depending on the evaluation method of the frequency measurement, for example, in the range of 2 MHz to 30 MHz, preferably between 8 MHz and 20 MHz.
  • the resonant circuit capacity of, for example, about 5 pF by touching the cooking vessel, it is necessary to operate the resonant circuit in the vicinity of the self-resonance of the sensor.
  • FIG. 1 shows a schematic oblique view of a hob according to the invention with four cooking zones and a cooking vessel recognition serving as an operating device, as well as various methods of operation.
  • a hob 11 is shown schematically 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 prints 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 as the type of heater used for the invention is irrelevant in this respect.
  • 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.
  • 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 may, for example, be designed as capacitive touch switches and be so-called touch switches. In addition to capacitive operating principles and optical or other can be used, as well as mechanical switches or the like .. By placing a finger 27, the touch switch 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.
  • two cooking vessel detection sensors 22d which are not formed in coil form, but form two individual surfaces which are arranged at the edge of the cooking area 14d and approximately opposite one another, are arranged below the cooking point 14d.
  • 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 they are used there for a different operating principle. However, the purpose is the same, namely the detection of the presence, training and possibly also the size of an attached to the cooking vessel detection sensor cooking vessel placed here with the additional function of detecting the touch of the cooking vessel by an operator 27th
  • the hob Since only the two touch switches 21 are provided in the cooking hob 11 according to the invention for adjusting the power of all the cooking zones 14a-d, the hob must also be able to be switched on. If a cooking vessel 25 is or is being set up at a certain cooking location, the cooking vessel detection sensor 22 recognizes this together with the controller 18. According to the invention, it is recognized that the cooking vessel 25 is touched with a finger 27, ie a capacitive coupling takes place , As part of In fact, the invention has shown that it is possible to ascertain, with a correspondingly accurate tuning and evaluation of the signals of the cooking vessel detection sensor 22, whether a cooking vessel is being touched. For this purpose, metallic cooking vessels are necessary.
  • the capacity of an operator is added, for example, parallel to the resonant circuit capacitance of the sensors. This can be recognized by the signal of the cooking vessel detection sensor 22. In order to detect this contact of the cooking vessel, it is necessary to shift the operating frequency of the cooking vessel detection sensor to the above-mentioned very high values. Alternatively, capacitive leakage currents can also be measured on the finger 27 via similar sensors with capacitive coupling.
  • a cooking vessel 25c can also be set up to switch on, as shown on the right by the large movement arrow.
  • the cooking vessel 25c is touched by the hands 28. This corresponds to the detection thus approximately touching an already established cooking vessel.
  • selection also called selection. This is used to determine at which hotplate 14 in a subsequent process, the cooking or power level is changed. 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.
  • 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. So, especially when switching on can be signaled. It is not necessary to continue to touch the cooking vessel 25 while changing the state of the hotplate via the touch switches 21. A single touch, possibly with a minimum of time required, may be considered sufficient.
  • this means that touching or touching a cooking vessel is recognized by the hob or the actuation sensor and is taken as an actuation corresponding to another actuation via known switches.
  • some input elements or controls such as ON-switch or circuit breaker or the like. be waived.
  • an instinctive operation by touching an erected cooking vessel is possible.
  • a touch of the cooking vessel for example, when setting up a cooking vessel with contents to be heated, when lifting the lid or while stirring with simultaneous holding takes place. In practice, these actions are often followed by changes to the switch-on state of the hob or to the power setting of the hotplate.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
EP06017019A 2005-08-23 2006-08-16 Plaque de cuisson commandée électroniquement comportant plusieurs feux et le procédé de commande de tels feux Not-in-force EP1758431B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06017019T PL1758431T3 (pl) 2005-08-23 2006-08-16 Elektronicznie sterowana płyta grzewcza z kilkoma powierzchniami gotowania i sposób eksploatacji takiej płyty grzewczej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005041028A DE102005041028A1 (de) 2005-08-23 2005-08-23 Elektronisch gesteuertes Kochfeld mit mehreren Kochstellen und Verfahren zum Betrieb eines solchen Kochfeldes

Publications (3)

Publication Number Publication Date
EP1758431A2 true EP1758431A2 (fr) 2007-02-28
EP1758431A3 EP1758431A3 (fr) 2009-01-07
EP1758431B1 EP1758431B1 (fr) 2012-10-10

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ID=37547493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06017019A Not-in-force EP1758431B1 (fr) 2005-08-23 2006-08-16 Plaque de cuisson commandée électroniquement comportant plusieurs feux et le procédé de commande de tels feux

Country Status (4)

Country Link
EP (1) EP1758431B1 (fr)
DE (1) DE102005041028A1 (fr)
ES (1) ES2396717T3 (fr)
PL (1) PL1758431T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2276322A1 (fr) * 2009-07-16 2011-01-19 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé de fonctionnement d'un champ de cuisson
EP2763500A1 (fr) * 2013-01-29 2014-08-06 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson comprenant une plaque et une piste conductrice comme limitation de surface des composants électroniques
WO2018200974A1 (fr) * 2017-04-27 2018-11-01 Meyer Intellectual Properties Ltd. Système de commande de cuisson
US10720077B2 (en) 2016-02-18 2020-07-21 Meyer Intellectual Properties Ltd. Auxiliary button for a cooking system
US11766151B2 (en) 2016-02-18 2023-09-26 Meyer Intellectual Properties Ltd. Cooking system with error detection
EP4324362A1 (fr) * 2022-08-16 2024-02-21 Miele & Cie. KG Ustensile de cuisson fonctionnel et procédé de fonctionnement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022339A1 (de) * 2009-05-14 2010-11-18 E.G.O. Elektro-Gerätebau GmbH Bedienvorrichtung für ein Elektrogerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0967839A2 (fr) 1998-06-05 1999-12-29 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson munie d'une unité de commande dans le but de déterminer le niveau de puissance fournie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224934C2 (de) * 1992-07-28 2003-05-15 Bsh Bosch Siemens Hausgeraete Heizkörper mit einer Sensortechnik für ein Topferkennungssystem
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
DE10211047B4 (de) * 2002-03-13 2005-10-06 Cherry Gmbh Anordnung zur Steuerung eines Kochfeldes
DE102004011749A1 (de) * 2004-03-02 2005-09-15 E.G.O. Elektro-Gerätebau GmbH Elektronisch gesteuertes Kochfeld mit mehreren Kochstellen und Verfahren zum Betrieb eines solchen Kochfeldes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0967839A2 (fr) 1998-06-05 1999-12-29 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson munie d'une unité de commande dans le but de déterminer le niveau de puissance fournie

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2276322A1 (fr) * 2009-07-16 2011-01-19 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé de fonctionnement d'un champ de cuisson
EP2763500A1 (fr) * 2013-01-29 2014-08-06 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson comprenant une plaque et une piste conductrice comme limitation de surface des composants électroniques
US10720077B2 (en) 2016-02-18 2020-07-21 Meyer Intellectual Properties Ltd. Auxiliary button for a cooking system
US11766151B2 (en) 2016-02-18 2023-09-26 Meyer Intellectual Properties Ltd. Cooking system with error detection
WO2018200974A1 (fr) * 2017-04-27 2018-11-01 Meyer Intellectual Properties Ltd. Système de commande de cuisson
EP4324362A1 (fr) * 2022-08-16 2024-02-21 Miele & Cie. KG Ustensile de cuisson fonctionnel et procédé de fonctionnement
BE1030778B1 (de) * 2022-08-16 2024-03-18 Miele & Cie Funktionsgargeschirr und Verfahren zum Betreiben

Also Published As

Publication number Publication date
PL1758431T3 (pl) 2013-03-29
ES2396717T3 (es) 2013-02-25
EP1758431B1 (fr) 2012-10-10
DE102005041028A1 (de) 2007-03-01
EP1758431A3 (fr) 2009-01-07

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