EP3612002A1 - Procédé de commande d'un dispositif de chauffage d'un champ de cuisson et champ de cuisson - Google Patents

Procédé de commande d'un dispositif de chauffage d'un champ de cuisson et champ de cuisson Download PDF

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Publication number
EP3612002A1
EP3612002A1 EP19188304.0A EP19188304A EP3612002A1 EP 3612002 A1 EP3612002 A1 EP 3612002A1 EP 19188304 A EP19188304 A EP 19188304A EP 3612002 A1 EP3612002 A1 EP 3612002A1
Authority
EP
European Patent Office
Prior art keywords
power
cooking vessel
decision time
operator
heating
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
EP19188304.0A
Other languages
German (de)
English (en)
Other versions
EP3612002B1 (fr
Inventor
Tilo Fucik
Gabriel Rupp
Aylin Schoeffler
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
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Publication of EP3612002A1 publication Critical patent/EP3612002A1/fr
Application granted granted Critical
Publication of EP3612002B1 publication Critical patent/EP3612002B1/fr
Active 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • 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
    • 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
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to a method for controlling a heating device of a cooktop and a corresponding cooktop.
  • the cooktop has a plurality of heating devices under a cooktop plate and pan detection means in order to recognize a position of a cooking vessel on the cooktop plate.
  • the invention has for its object to provide an initially mentioned method and an above-mentioned cooktop with which problems of the prior art can be avoided and in particular it is possible to control the cooktop in a practical and advantageous manner or to enable convenient use, in particular when moving a cooking vessel.
  • the hob which can be operated with the method according to the invention and which is designed to carry it out, has a hob plate and at least two heating devices under the hob plate.
  • These are advantageous induction heating coils, which can be operated individually or together, in order to be able to heat an erected cooking vessel.
  • the hob has pan detection means in order to be able to recognize a position of a cooking vessel on the hob plate.
  • These pot detection means can be generally designed, for example formed by the aforementioned induction heating coils themselves or by additional sensor coils, for example according to the DE 10 2014 224 051 A1 , Alternatively, a camera or the like. be arranged above the cooktop and optically record the state or processes on the cooktop.
  • the cooktop also has an operating device with control elements and at least one display and a controller for the cooktop.
  • the method according to the invention can be carried out particularly well with such a hob.
  • a cooking vessel is set up over a first heating device of the hob, possibly also over a plurality of heating devices or over a plurality of heating elements, which together can form a heating device corresponding to the cooking vessel.
  • This heating device heats it with a relatively high first power, this relatively high first power being at least 50% of the permanently maximum possible power of the first heating device, ie at least 50% of a permanent nominal power.
  • This is particularly important in the case of induction heating coils, which can also be operated in a so-called boost mode with a higher output than this nominal continuous output, for example up to 50% higher. With this power, they can only be operated for a few minutes.
  • the relatively high first power mentioned can also be such a boost power.
  • the first output mentioned is even at least 70% of the permanently maximum possible output. For cooking levels, this can be from level 8.
  • the cooking vessel is moved by at least 4 cm, possibly also so far that it no longer covers this first heating device.
  • This shifting is recognized by a control of the hob, advantageously with the aid of the aforementioned pan detection means.
  • the cooking vessel is heated with a second power, this second power being reduced compared to the first power.
  • This second output is advantageously at least 10% to 50% lower than the first output.
  • a counter begins to count a predetermined decision time.
  • This counting is signaled to an operator optically and / or acoustically as a process so that they can see it clearly.
  • Counting down a time is advantageously indicated optically as a countdown.
  • the operator does not react during the decision time, which in this case means that he does not change the heating output for this cooking vessel or on the previous first heating device or a new heating device which is now covered by the cooking vessel due to the displacement , It can therefore be provided that the operator makes an operating input for other cooking vessels or other cooking points formed for the cooking vessels, which should not count for the displaced cooking vessel.
  • the operator reacts during the decision time and changes the performance, advantageously into a third performance.
  • This third power is particularly advantageous compared to the first power, but this need not necessarily be the case. It can be at least 10% to 50% lower.
  • the cooking vessel is heated again permanently with the first power after the decision time has expired, this advantageously taking place in such a way that the cooking vessel is heated again in absolute terms with the same power as previously corresponding to the first power. It does not matter whether this is done by a single heating device or by several, especially in the case of induction heating coils.
  • the cooking vessel is permanently heated with the changed power after the power has changed, in particular to the third power mentioned, or after the decision time has expired, that is to say either immediately or only after the decision time has expired. This is preferred with the third service.
  • This shifting also has the advantage that the cooking vessel is then not only no longer or only slightly above the previously heating heating device, but also stands with a certain probability additionally on a cold area of the hob plate. This makes it a bit cooler, so that the water stops boiling relatively quickly, which corresponds to this instinctive reaction of the operator.
  • the goal can be achieved here that the water in the cooking vessel stops boiling or boiling over as quickly as possible.
  • the operator wants the water to actually continue to boil, this is done automatically after the decision time has elapsed, for example after a few seconds. The operator then no longer has to do anything about this, he may be able to remove a lid from the cooking vessel, which also reliably prevents boiling over.
  • an operator can be informed with the invention on the one hand about the change or reduction in performance. At the same time, she is asked to do so or has it in her hand to make the service valid again without intervention. Alternatively, it can determine the power setting through direct intervention.
  • the minimum displacement mentioned can advantageously be greater than 4 cm, particularly advantageously greater than 10 cm. This means that a very slight displacement of the cooking vessel, for example by 1 cm to 4 cm, which can also happen unintentionally, should have no effect and the cooking vessel is then heated as before, without intervention by a control of the hob. A direction of displacement can generally be neglected. It can thus be taken into account that several cooking vessels can stand on the hob when in use and a shift is not always possible or takes place to the rear, which is probably the most common and simplest case, but may also have to be carried out diagonally to the rear, possibly also to the front.
  • the method is particularly advantageous when the cooking vessel is clearly displaced such that the cooking vessel is completely removed from the first heating device and is moved over at least one second heating device. At this point, the cooking vessel should then be heated with the second power by at least the second heating device, at least for the decision time.
  • a third case can also be provided in the invention, namely that the operator reacts during the decision time, that is to say before it expires, and actuates an operating element.
  • This can advantageously be a specific control element provided for this purpose. Then the decision time is aborted immediately, so it is no longer counted. Furthermore, the cooking vessel is then immediately heated again with the original first output. This covers the aforementioned option that the operator wants the cooking vessel to continue to be heated at the first power. Furthermore, in this third case, the possibility is also to be covered that the operator moves the cooking vessel back to the original position, that is to say shifts the cooking vessel again, so to speak.
  • the second power is reduced by approximately 25% to 40% compared to the first power.
  • it is not quite as much reduced, but still so strong, for example, to briefly interrupt a boiling process of water in the cooking vessel and thus to avoid boiling over.
  • the aforementioned relatively high power is a surface power density of more than 3.5 W / cm 2 . It can also be more than 5 W / cm 2 or even more than 7 W / cm 2 , corresponding to a level 8 or 9 as a power level or cooking level.
  • a visual display of the counting as the decision time has elapsed can also be done with a flashing.
  • a aforementioned number or a progress bar can flash, which ensures particularly well that the operator notices this.
  • the operator reacts during the decision time and, by actuating an operating element, in particular a specially provided operating element, permanently adjusts the output to the second output in order to further heat the cooking vessel ,
  • an operating element in particular a specially provided operating element, permanently adjusts the output to the second output in order to further heat the cooking vessel .
  • the operator can set the second service as a permanent additional service even before the decision time has expired, for example because the operator considers this service to be advantageous.
  • the power currently used for heating the cooking vessel is displayed as a number or as a power indicator. This then advantageously corresponds to a power level. This means that the operator always knows at a glance how strongly the cooking vessel is being heated at all times.
  • a heating device can be understood in the context of the invention in such a way that it does not have only a single heating element.
  • two to four induction heating coils can be used together to heat a single cooking vessel and can then be viewed as a heating device with the same power, at least the same area power and / or absolute power.
  • a hob with which the above-described method can advantageously be carried out advantageously has more than the usual four or six heating devices for four or six discrete hotplates. For example, at least two times three or two times four heating devices can be provided, in particular three times four heating devices. Their arrangement should be regular so that the cooktop is well covered.
  • FIG. 1 a top view of an induction hob 11 according to the invention for carrying out the method according to the invention, which has a hob plate 12, is shown.
  • the rear and by far the largest part of the cooktop plate 12 forms a heating area 13 in order to be able to use it to heat cooking vessels or pots that have been set up.
  • Eight induction heating coils 15 are arranged below the heating region 13, here denoted by HE10 to HE23.
  • the left half of the heating area 13 has four induction heating coils 15 and the right half also. However, this division is not absolutely necessary; fewer and, above all, even more induction heating coils could be provided for the entire heating area 13.
  • a pot T1 as a cooking vessel is placed on the induction hob 11 at the front left. It largely covers the front left induction heating coils HE10. On the right a larger oval pot T2 is set up as a cooking vessel corresponding to a roasting pan, approximately in the middle between the two induction heating coils HE20 and HE23 and on top of them.
  • the induction hob 11 has an operating device 17, advantageously arranged below the same hob plate 12 and realized with touch switches, advantageously with capacitive sensor elements and light indicators or LEDs.
  • the operating device 17 has four horizontally running so-called sliders 19a to 19d in a special distribution, which does not play a significant role here.
  • Each slider has ten light segments 20, a separate sensor element also being provided on each light segment 20.
  • Such a slider 19 is thus a type of illuminated touch strip.
  • a display 21 is arranged to the right of each slider 19, so four displays 21a to 21d are also provided.
  • the displays 21 each have two seven-segment displays for representing corresponding numbers and letters or symbols, as shown in the following 2 to 4 is easy to see.
  • the target power with the power level 8 is set on the lower left slider 19a.
  • the power setting or power setting in stages is usual for hobs. This can be done by wiping a finger above the slider 19a, alternatively via direct operation. If a finger is placed on the slider 19a from the right over the second light segment 20a, which is the ninth light segment when seen from the left, the power level 8 can also be set directly. In any case, the display 21a with the right digit indicates the power level 8 by lighting, advantageously by constant lighting.
  • the eight left light segments 20a light up and thus also illustrate the set high power level as the target power for the pot T1.
  • the setting up of the pots T1 and T2 may have been recognized by the induction heating coils HE themselves. Alternatively, other sensors may have detected it.
  • the power level 8 corresponds to an area power density of approximately 5 W / cm 2 for the pot T1. So this first achievement is a great achievement. If the first performance were significantly smaller than 3.5 W / cm 2 or less than 3 W / cm 2 or less than a power level of "7" or "6" or below, the method according to the invention would not be used, and in particular no reduction in the power in the new one second position.
  • a target power can be set for the right pot T2 and displayed on the slider 19d and on the display 21a.
  • the pot T1 is pushed back by the operator into the new second position T1 '. This should serve as a quick reaction to the fact that the water in the pot T1 threatens to boil over or is already boiling over something that is not desired by the operator. Moving the pot T1 is then at least subjectively or intuitively faster and more direct and reliable for many operators than is the reduction of the power by means of the operating device.
  • this position of the pot T1' is recognized again position T1 as before. If the distance d were smaller than the minimum displacement mentioned at the beginning, no action would take place.
  • the pot T1 ' is operated with reduced power as a new second power.
  • the performance is reduced, and significantly.
  • the display 21a shows the power level 4 with the right digit.
  • a predetermined decision time begins or is counted down on a counter in the aforementioned control of the induction hob 11. It is advantageously chosen to be 10 seconds. The course of this decision time should be visually displayed to an operator, this is in the Fig. 4 clarified. On the left it is shown how only ten of these light segments on a slider 19 with the ten light segments 20 shine, as shown at the very top. Then only nine light segments light up, then eight light segments 20, etc. Another light segment is advantageously deleted per second, so that the decision time is optically counted down.
  • the numerical counting of the decision time can be shown on the display 21 with the seven-segment displays as a kind of countdown. At the very bottom, if the light segment 20 no longer lights up in the slider 19 shown on the left, a "0" would light up accordingly on the right.
  • the reduction in power can be shown on the display 21, for example by a letter such as a "U”.
  • the reduced second power can be shown on the display 21, ie the number 4 accordingly Fig. 3 , as the actually used power.
  • the decision time is advantageously optically counted on the slider 19.
  • the expiration of the decision time can according to the Fig. 4 are also represented by flashing on the slider 19 or on its light segments 20 and / or on the display 21.
  • the operator can now react as previously described. If it does not react at all within the decision time, the pot T1 'in the new position is operated again immediately after the decision time has elapsed with the original first power, that is with power level 8. This is shown in FIG. 6.
  • the operator reacts during the decision time of 10 seconds and changes the power with a control element or with the slider 19, which is still active despite displaying the expiry of the decision time, into a third power.
  • This third benefit may be reduced compared to the first, but need not be.
  • the third service can also correspond to the second service.
  • the pot T1 'in the new position is heated permanently with this third power immediately after changing to the third power. Alternatively, this can only take place after the decision time has expired, but this is considered disadvantageous.
  • the operator reacts while counting the decision time, he can operate an operating element in the third case mentioned, advantageously a certain operating element provided for this purpose. This causes the decision time to be aborted immediately and the decision time to be counted, and the pot T1 'is then immediately heated again with the first output.
  • the operator also reacts while counting the decision time and actuates an operating element, advantageously a specially provided operating element.
  • an operating element advantageously a specially provided operating element.
  • she can permanently set the power to the second power for heating the pot T1 ', for example because she has seen that this corresponds to the desire to heat the pot T1' in the new position.
  • the pot T2 as described above when it is moved to the new position T2 '. It covers two induction heating coils in both positions, once as pot T2 the induction heating coils HE20 and HE23 and as pot T2 'in the shifted position the induction heating coils HE21 and HE22.
  • the pot is heated with a correspondingly high first output, the output is first reduced after moving by the distance d.
  • the two induction heating coils are treated as one. It would also be the case if a pot were moved from two induction heating coils to a single one, or if a pot was moved from previously one induction heating coil to two.
  • absolute power or a power level it should change for the pot as described above, regardless of the number of induction heating coils required. This applies at least as long as the desired service can be provided.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)
EP19188304.0A 2018-08-14 2019-07-25 Procédé de commande d'un dispositif de chauffage d'un champ de cuisson et champ de cuisson Active EP3612002B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018213655.6A DE102018213655A1 (de) 2018-08-14 2018-08-14 Verfahren zur Ansteuerung einer Heizeinrichtung eines Kochfelds und Kochfeld

Publications (2)

Publication Number Publication Date
EP3612002A1 true EP3612002A1 (fr) 2020-02-19
EP3612002B1 EP3612002B1 (fr) 2022-03-09

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EP19188304.0A Active EP3612002B1 (fr) 2018-08-14 2019-07-25 Procédé de commande d'un dispositif de chauffage d'un champ de cuisson et champ de cuisson

Country Status (5)

Country Link
EP (1) EP3612002B1 (fr)
KR (1) KR20200019580A (fr)
DE (1) DE102018213655A1 (fr)
ES (1) ES2913797T3 (fr)
PL (1) PL3612002T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3945749A1 (fr) * 2020-07-30 2022-02-02 E.G.O. Elektro-Gerätebau GmbH Procédé de fonctionnement d'une plaque de cuisson et plaque de cuisson

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4250872A1 (fr) * 2022-03-25 2023-09-27 Electrolux Appliances Aktiebolag Table de cuisson à induction
BE1031072B1 (de) * 2022-11-25 2024-06-24 Miele & Cie Kochfeld
US20240295325A1 (en) * 2023-03-03 2024-09-05 Whirlpool Corporation Multi-function cooktop slider controls

Citations (5)

* 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
DE102004044355A1 (de) 2004-09-09 2006-03-30 E.G.O. Elektro-Gerätebau GmbH Verfahren zur optischen Kennzeichnung eines Berührungsschalters und ein solcher Berührungsschalter
EP2211591A1 (fr) 2009-01-22 2010-07-28 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fonctionnement d'un champ de cuisson doté d'une multitude d'éléments de chauffage
DE102014224051A1 (de) 2014-11-25 2016-05-25 E.G.O. Elektro-Gerätebau GmbH Induktionskochfeld und Verfahren zur Steuerung eines Induktionskochfelds
EP3297397A1 (fr) * 2016-09-16 2018-03-21 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé de fonctionnement d'une plaque de cuisson dotée d'une pluralité de dispositifs de chauffage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014105161B4 (de) * 2014-04-11 2023-03-23 Miele & Cie. Kg Verfahren zum Betreiben einer Kochfeldeinrichtung und Kochfeldeinrichtung

Patent Citations (5)

* 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
DE102004044355A1 (de) 2004-09-09 2006-03-30 E.G.O. Elektro-Gerätebau GmbH Verfahren zur optischen Kennzeichnung eines Berührungsschalters und ein solcher Berührungsschalter
EP2211591A1 (fr) 2009-01-22 2010-07-28 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fonctionnement d'un champ de cuisson doté d'une multitude d'éléments de chauffage
DE102014224051A1 (de) 2014-11-25 2016-05-25 E.G.O. Elektro-Gerätebau GmbH Induktionskochfeld und Verfahren zur Steuerung eines Induktionskochfelds
EP3297397A1 (fr) * 2016-09-16 2018-03-21 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé de fonctionnement d'une plaque de cuisson dotée d'une pluralité de dispositifs de chauffage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3945749A1 (fr) * 2020-07-30 2022-02-02 E.G.O. Elektro-Gerätebau GmbH Procédé de fonctionnement d'une plaque de cuisson et plaque de cuisson

Also Published As

Publication number Publication date
ES2913797T3 (es) 2022-06-06
DE102018213655A1 (de) 2020-02-20
EP3612002B1 (fr) 2022-03-09
KR20200019580A (ko) 2020-02-24
PL3612002T3 (pl) 2022-08-08

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