EP4203608A1 - Procédé de fonctionnement d'une plaque de cuisson et plaque de cuisson - Google Patents

Procédé de fonctionnement d'une plaque de cuisson et plaque de cuisson Download PDF

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Publication number
EP4203608A1
EP4203608A1 EP22210287.3A EP22210287A EP4203608A1 EP 4203608 A1 EP4203608 A1 EP 4203608A1 EP 22210287 A EP22210287 A EP 22210287A EP 4203608 A1 EP4203608 A1 EP 4203608A1
Authority
EP
European Patent Office
Prior art keywords
heating devices
heaters
relative
cooking vessel
determined
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.)
Pending
Application number
EP22210287.3A
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German (de)
English (en)
Inventor
Kay David Bäumges
Stephane Lomp
Etienne Fuchs
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 EP4203608A1 publication Critical patent/EP4203608A1/fr
Pending legal-status Critical Current

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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
    • H05B6/10—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
    • 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
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/108—Mounting of hot plate on worktop
    • 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
    • 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
    • F24C7/06—Arrangement or mounting of electric heating elements
    • 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
    • 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
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1272—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with more than one coil or coil segment per heating zone
    • 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 operating a hob and a hob that is designed to carry out this method.
  • Hobs with a so-called pan recognition function are known in the prior art and are also available on the market, see for example DE 10 2006 054 973 A1 or the EP 2 833 967 A1 .
  • several heating devices in the form of induction heating coils are arranged along a straight line or row, for example six to eight in the first line and four in the second line.
  • a pan detection device is provided in each case, formed in particular by the induction heating coils themselves, which can determine whether a cooking vessel has been placed above it. If necessary, a corresponding number of induction heating coils can then be operated together in order to heat this cooking vessel.
  • the invention is based on the object of creating a method as mentioned at the outset and a hob as mentioned at the outset, with which problems of the prior art can be solved and in particular it is possible to identify very simply and in a practical manner what the covering situation is on the hob and in particular to operate at least partially automatically heating devices for heating a cooking vessel.
  • the cooktop comprises a cooktop plate and at least three heaters, advantageously at least three identical heaters, arranged along a straight line and adjacent.
  • these heaters are directly adjacent to each other with no other heaters in between.
  • Their distance from each other can be a maximum of 20 mm, advantageously a maximum of 10 mm.
  • the arrangement along a straight line is preferably to be understood in such a way that their central regions lie in a straight line around a centroid, these central regions occupying approximately 10% to 20% of the total area of the heating device. Further explanations on this are given below.
  • the hob has a pot detection device that is designed to determine whether each of the heating devices is covered relative to each other by a cooking vessel that is positioned above the heating devices on the hob plate.
  • the heating devices are in the form of induction heating coils and can then themselves be part of this pot detection device; they preferably form the only sensors for the pot detection device.
  • separate pan detection sensors are provided that fulfill this task.
  • this step is performed only for heaters arranged along a straight line.
  • the above definition of the arrangement of heating devices along a straight line can be used as a basis.
  • the pot detection device is also used to determine how large a relative coverage of each heating device is by a cooking vessel over which such a cooking vessel has been recognized at all. Both for this step and for the preceding step, it is in principle irrelevant whether such a covering is provided by a single cooking vessel or by a plurality of cooking vessels. What matters is how large the relative coverage of a heating device is by at least one cooking vessel placed above it or by a plurality of cooking vessels placed above it, ie the percentage by which the heating device is covered.
  • a 1. case is determined when it is determined for the at least three heaters arranged along the straight line that the relative coverage of the central heater, i.e. between the two other heaters, is less than the relative coverage of the other two adjacent heaters heating devices. In this 1st case, it is determined that there is no cooking vessel placed over the three heaters, covering all three heaters continuously, or even more heaters. At least two cooking vessels must therefore be placed above the three heating devices, provided that a cooking vessel or part of a cooking vessel has been identified above all three heating devices, i.e. all three are at least partially covered.
  • this first case it can be the case, for example, that two cooking vessels are placed above the three heating devices and both cooking vessels together cover the central heating device, but to a lesser extent, i.e. it is covered relatively less than the other two outer heating devices. It can be assumed that when all three heating devices are covered with a single cooking vessel, the middle heating device would have to be covered at least as much as the two adjacent ones, or even more or relatively more covered. If this is not the case, because the middle heating device has a smaller relative coverage, it is not possible to provide a single cooking vessel that covers all three heating devices. Here it can be advantageously assumed for the method that such a case is somehow possible. However, it is considered to be so rare or impractical that it is not considered as an eventuality.
  • the pot detection device has at least three pot detection sensors. Exactly one pan detection sensor is advantageously assigned to each heating device of the hob.
  • This pot detection sensor is particularly advantageously integrated in the heating device, advantageously in such a way that the heating device is an induction heating coil and is itself controlled and evaluated in such a way that it detects a cooking vessel placed above it and also a relative coverage caused thereby.
  • the heating device is an induction heating coil and is itself controlled and evaluated in such a way that it detects a cooking vessel placed above it and also a relative coverage caused thereby.
  • the induction heating coils as pot detection sensors are the only sensors for such a pot detection. Then the design effort and the effort for control and evaluation can be reduced in the hob.
  • the relative coverage of all heating devices is determined by means of the pot detection device and the pot detection sensors before the aforementioned case distinction, ie in a preceding step.
  • the aim is to determine which heating devices are actually covered by a cooking vessel, regardless of how large the number of cooking vessels is. This is then only the result after the case differentiation has been carried out. Furthermore, it can be determined to what extent each heating device is covered by a cooking vessel placed above it or by a plurality of cooking vessels, ie how large their relative coverage is.
  • the case distinction can have a 2nd case, which starts from the 1st case.
  • An assignment to this second case is made when it is determined for the middle heating device between the two adjacent heating devices that it has a relative coverage greater than zero, ie that there is at least one cooking vessel placed above it.
  • the relative coverage of the other two adjacent heating devices is the same, so they are also covered by at least one cooking vessel.
  • it is determined that the three heating devices are covered by exactly two cooking vessels, with one of the two adjacent heating devices being covered by exactly one first cooking vessel, that is to say no more.
  • the other two heating devices, ie the central heating device and the other adjacent heating device are jointly covered by another second cooking vessel. The probability that a large roaster or the like.
  • roasters are oval in shape so that the narrower ends would at least partially overlie the outer adjacent heaters, so that these would then have less relative coverage than the central heater.
  • a heating device particularly if it is an induction heating coil, is advantageously carried out with predetermined power densities, ie power per area.
  • predetermined power densities ie power per area.
  • a 3rd case is provided in which it is determined for the three heating devices arranged along the straight line that the relative coverage of the central heating device is greater than the relative coverage of the other two adjacent heating devices, specifically greater than that of the one adjacent heater and also larger than that of the other adjacent heater. It can be provided, in particular, that the relative coverages of the two other adjacent heating devices are different from one another. This is advantageous but only differs by a maximum of 20%. In this 3rd case, it is then determined that a single cooking vessel is placed over the three heaters, continuously covering all three heaters.
  • the three heating devices can advantageously be bridged, so to speak, and then automatically operated together by a hob controller, so that an operator only has to enter or specify a power level once, which then applies to all three heating devices.
  • the only cooking vessel is a very large cooking pot or what is known as a roasting dish, which has an elongated oval shape.
  • the exact shape of this single cooking vessel is irrelevant, since no further distinction is necessary.
  • a fourth case in which a relative coverage of less than 30% is determined for the central heating device, in particular less than 20% or even less than 10%.
  • a relative coverage of more than 30% each, advantageously more than 50%, is determined for the two other adjacent heating devices. Then it is determined that no cooking vessel is placed above the central heating device or a cooking vessel that is placed has only a very small coverage to this heating device. Rather, one cooking vessel is placed above each of the other two adjacent heating devices. From this, the cooktop control can draw the conclusion or determine that none of the three heating devices is operated in a bridged manner with one of the others, but that the power is set separately in each case. Possibly one of the two adjacent, ie the outer, heating devices can be operated in a bridged manner with yet another neighboring heating device. However, this must then be judged according to other criteria.
  • a 5th case can be provided in which it is determined for the three aforementioned heating devices and then for a fourth, which is also in a straight line with the other three heating devices, that each of them is covered by a cooking vessel or has a relative coverage which is advantageously greater than 5% or greater than 10%. Then the relative coverages of the two middle heaters are compared to the relative coverages of the two outer heaters, respectively. In a 1st sub-case, that the relative coverages of the two central heating devices are each greater than the relative coverages of the two outer heating devices, it is determined that a single, very large cooking vessel is placed over all four heating devices, which covers all four heating devices continuously. In this way, the four heating devices can be operated in a bridged manner by one cooktop control, i.e. they can be connected together automatically and operated with the common power or power level. No separate operating procedure is necessary for this bridging.
  • the relative coverages of the two central heating devices are each smaller than the relative coverages of the two outer heating devices.
  • a cooking vessel is placed above each of the two outer heating devices and the central heating device directly adjacent thereto, which cookware covers these two heating devices together. It is thus determined that the four heating devices are covered by two cooking vessels, namely two directly adjacent heating devices from a common cooking vessel.
  • the relative coverages of the respective heating devices are set in relation to one another. This is made advantageous for the at least three heaters along the straight line, particularly advantageous for all heaters arranged along a straight line under the above criteria.
  • heating devices with a relative coverage of more than 50% are assigned to one group of widely covered heating devices. Heaters with a relative coverage of less than 50% are classified in the other group, i.e. less than 50% coverage. A group formation of the heating devices can be achieved in this way.
  • a state of the hob can be analyzed when cooking vessels are set up as soon as the hob has been switched on.
  • the point in time at which cooking vessels are set up or have been recognized as set up can be disregarded.
  • the method is only carried out when the pot detection device or the pot detection sensors detect no movement of a cooking vessel on the hob plate. Then the procedure can be interrupted, so to speak. Only when static or temporally unchanged conditions prevail again does the preceding and then the following step start again.
  • each of the two maxima of relative coverage can be found over a single heater or over two heaters.
  • determining the minimum between two maxima it is determined that above the one heating device and above the heating devices with a minimum of the relative coverage only cover edge areas of cooking vessels placed next to them above the maxima, so that an intermediate area between these two cooking vessels above the at least a heater with minimum relative coverage is determined. From this it can be concluded that, depending on the amount of relative coverage, the at least one heater with the minimum relative coverage contributes to the heating or not. This can be done depending on the amount of relative coverage.
  • this relative coverage of the at least one heating device is less than 20% and this is probably also generated by two cooking vessels together, it can be assumed that these two cooking vessels are only set up to a very small extent over this minimally relatively covered heating device or heating devices are. Then they don't have to heat up. If, on the other hand, the relative coverage is more than 50%, heating can be advantageous or even necessary under certain circumstances. Then it is recommended that at least one power level of that neighboring heating device, which has the lower of the maximum relatively covered heating devices, is heated.
  • a seventh case in which a heating device is determined with a maximum of its relative coverage between two heating devices with a minimum of their relative coverage.
  • a heating device is determined with a maximum of its relative coverage between two heating devices with a minimum of their relative coverage.
  • two cooking vessels are set up above the at least three heating devices.
  • a cooking vessel is set up over the intermediate heating device with the maximum of the relative coverage and over one of the adjacent heating devices together.
  • the other cooking vessel is positioned above the other adjacent heating device, advantageously it does not cover the intermediate heating device at all.
  • it can be particularly advantageously determined that the cooking vessel that covers the two heating devices together is larger than the other cooking vessel that is placed above the individual heating device.
  • the heating devices are not designed to be round or circular, but square or rectangular.
  • the heating devices are advantageously of identical design. They can have a length and a width, the length being greater than the width.
  • the width should be less than 20 cm, especially it should be less than 15 cm, but especially more than 8 cm.
  • the length is advantageously greater than 15 cm, particularly advantageously even greater than 20 cm, but in particular less than 30 cm. In this way it can be achieved that two heating devices are arranged with their longitudinal sides lying side by side and the area formed by these two heating devices resembles a square or does not deviate too much from a square shape. As a result, it can be achieved that a usually round cooking vessel can be heated very well.
  • a cooktop in a cooktop according to the invention, at least three heaters can be arranged along the straight line below a cooktop plate, advantageously in a front-to-back direction.
  • Four heating devices with a width of 10 cm to 12 cm are particularly advantageous.
  • the length of the heating devices can then be 20 cm to 24 cm, ie approximately twice the aforementioned width.
  • the length of the heating devices runs in a direction parallel to the width direction of the hob.
  • three such lines of heating devices advantageously four heating devices each, can be provided.
  • a hob can also be very wide and have a depth of only one or two heating devices in a row. Then the straight line of heaters is not front to back but left to right.
  • pot detection and the case distinction only function are carried out if a maximum of two cooking vessels are set up along a straight line along heating devices. Otherwise the distinction becomes too difficult.
  • the hob also has the pot detection device.
  • the heating devices are induction heating coils, this is advantageously formed by the converter required for driving them.
  • This converter recognizes the relative coverage of the induction heating device based on the curves of current and voltage.
  • This pot detection device then sends the information on the relative coverage to the hob controller, which makes the case distinction.
  • the hob controller can then interconnect or bridge adjacent heating devices for joint heating and for joint power setting.
  • a plan view of a hob 11 according to the invention is shown, which has a hob plate 12 .
  • the operating device 14 is advantageously arranged below the hob plate 12 and its display can be seen and operated through the hob plate 12, as is known from the prior art.
  • the hob 11 has a controller 17 connected to the operating device 14 . This can implement operating commands and also control a display.
  • the controller 17 in turn is connected to a converter 19 for the hob 11 and gives this commands.
  • the converter 19 in turn controls the induction heating coils I of the hob 11 in a known manner.
  • These induction coils I are divided into a left row or group and a right row or group, four induction heating coils each. On the left are the induction heating coils IL1, IL2, IL3 and IL4. On the right are the induction heating coils IR1, IR2, IR3 and IR4. In other configurations there could also be only three induction heating coils I or five or even more.
  • induction heating coils I are arranged along a straight line running from front to back. Here they are arranged exactly one behind the other, but could alternatively also be offset slightly to the left or to the right, for example 1 cm to 3 cm or even 5 cm.
  • the dimensions of the induction heating coils I are such that they have a left to right length of about 22 cm and a front to back width of about 10 cm. They could also have a trapezoidal shape, in particular be arranged in a varyingly offset manner with respect to one another.
  • the induction heating coils I are advantageously of generally identical design.
  • the induction heating coils I together with the converter 19, form not only the heating for the pots T placed on the hob plate 12 as the aforementioned cooking vessels, but at the same time the pot recognition device.
  • This function of pot detection via the induction heating coils I itself is known to the person skilled in the art from the prior art. In principle, additional separate pan detection sensors could also be provided, which are small induction coils, for example. But they are not necessary.
  • this pot detection device formed by the induction heating coils I and the converter 19, in which the induction heating coils I act as pot detection sensors can be designed to determine the relative coverage of each induction heating coil I with a pot T or a corresponding one To determine object or cooking vessel. This can be seen from the current and voltage of the activation of each induction heating coil I. This is also known from the prior art for a person skilled in the art.
  • the front pot TL1 stands above the two front induction heating coils IL1 and IL2, being offset slightly to the front. This may be due to an operator putting it on like this because it is more convenient.
  • the rear pot TL2 stands above the two rear induction heating coils IL3 and IL4, with it also being pulled slightly forward and thus covering the front induction heating coil IL3 somewhat more than the rear induction heating coil IL4.
  • the pot detection device determines on the one hand that a pot is placed above all induction heating coils IL, to a considerable extent, which can mean here that the relative coverage is over 5% or even over 10 % lies. Specifically, it is over 60%.
  • the pan detection device can be used to determine that the induction heating coils IL1 and IL3 have a somewhat higher relative coverage than the induction heating coils IL2 and IL4. It is thus established for the induction heating coil IL2 that, corresponding to the 1st case, it has a relative coverage which is less than that of the two induction heating coils IL1 and IL3 arranged next to it.
  • the difference may not be huge, but it is noticeable and is at least 10% in the present case.
  • the pan detection device together with the controller 17, recognizes that the rearmost induction heating coil IL4 also has a relative coverage of about 50%, it determines that the relative coverage of the induction heating coils IL3 and IL4 does not come from a single cooking vessel, which would then be rather small , but of a cooking vessel altogether. Because of the somewhat smaller relative coverage of the induction heating coil IL2 compared to the two adjacent cooking vessels, it cannot be a cooking vessel that covers all four or all three front induction heating coils IL.
  • a pot TL1 is set up above the two front induction heating coils IL1 and IL2 and a pot TL2 is set up above the two rear induction heating coils IL3 and IL4. But more pots are not placed over the left induction heating coils either.
  • the exact location of each pot i.e. whether or that it covers one induction heating coil IL a little more than the other, can be determined, but it is irrelevant here and is not used.
  • the controller 17 can bridge the two induction heating coils IL1 and IL2 with one another, as well as bridge the two induction heating coils IL3 and IL4 with one another. This means that an operation with one of the operating elements 15 effects a power level for both induction heating coils, which are bridged together, simultaneously and in the same way. This allows for easier and more convenient operation.
  • a slightly smaller sized pot TR1 e.g. about 15 cm in diameter, is placed mainly over the induction heating coil IR2 and covers the front induction heating coil IR1 only very slightly, e.g. only about 10% relative coverage.
  • the induction heating coil IR2 is about 60% relatively covered.
  • the two rear induction heating coils IR3 and IR4 is a large pot TR2 with a diameter of about 18 cm, which is slightly shifted backwards or covers the rear induction heating coil IR4 with a larger relative coverage than the induction heating coil IR3.
  • the relative coverage of the induction heating coil IR3 is less than that of the two adjacent induction heating coils IR2 and IR4.
  • the second case is recognized because the middle induction heating coil IR3 has a relative coverage greater than zero and the relative coverages of the two adjacent induction heating coils IR2 and IR4 are approximately the same size. Accordingly, it is determined, which actually also applies to the left-hand row of induction heating coils IL, that according to this second case, the induction heating coil IR2 is covered by a single cooking vessel, namely the pot TR1. This can also be substantiated by the fact that for the foremost induction heating coil IR1 it is recognized that the relative coverage is very small and it can therefore be said that this relative coverage must come from the pot TR1 placed above the induction heating coil IR2. On the other hand, the two rear induction heating coils IR3 and IR4 are jointly covered by a single large cooking vessel, namely the pot TR2, which is shifted somewhat to the rear, and can be operated in a bridged manner.
  • a large roaster TL1 with a length of about 30 cm is set up above the front three induction heating coils IL1 to IL3, which completely covers them along the direction from the front to the rear.
  • the large roaster TL1 causes the relative coverage over the middle induction heating coil IL2 to be greater than over the two adjacent induction heating coils IL1 in front of it and IL3 behind it. Their relative coverage is in turn relatively similar to one another, so that the presence of the 3rd case mentioned at the outset is recognized or determined.
  • the three induction heating coils IL1 to IL3 are bridged by the controller 17 for easier operation.
  • the three front induction heating coils IR1 to IR3 are also covered by a common single cooking vessel TR1, shown here as a round pot TR1.
  • the relative coverage of the middle induction heating coil IR2 is clearly the largest, namely 100%.
  • the relative coverage of the other two induction heating coils IR1 and IR3 is again the same and is around 60%. From this it is determined that the 3rd case is present. Similar to what was described for the left-hand row of induction heating coils IL1, the three induction heating coils IR1 to IR3 are also bridged or interconnected by the controller 17 for a common setting of a power level.
  • a small pot TL1 is placed over the second induction heating coil IL2 and very slightly covers the third induction heating coil IL3, for example only 5%. It does not cover the foremost induction heating coil IL1 at all.
  • a small pot TL2 with a similar diameter is set up above the rearmost induction heating coil IL4, which relatively covers the induction heating coil IL3 in front of it by only about 3%.
  • the two pots TL1 and TL2 have a diameter of about 13 cm.
  • the very low relative coverage of the induction heating coil IL3 and the lack of coverage of the foremost induction heating coil IL1 causes the pot detector and controller to determine that the pots TL1 and TL2 are positioned just above the induction heating coils IL2 and IL4. This is the 4th case.
  • the pot detection device cannot detect whether the small relative coverage of the induction heating coils IL3 comes from one pot or from two pots, and if so, towards which of the neighboring induction heating coils. However, since the relative coverage is so small here, this does not play a role either. None of the induction heating coils, in particular not the induction heating coils IL2 and IL4, are bridged with one another or operated together. So your power setting is done separately. Furthermore, no power is released at all for the induction heating coil IL3 or it is not operated.
  • the hob 11 is on the left 3
  • the 6th case also occurs, since a minimum of the relative coverage is determined over the induction heating coil IL3. A maximum of the relative coverage occurs over the two adjacent induction heating coils IL2 and IL4 determined. Also in view of this 6th case, the controller 17 determines that exactly one pot TL1 or TL2 is set up only above the two induction heating coils IL2 and IL4.
  • a slightly larger pot TR1 is placed over the induction heating coils IR2 and IR3, the diameter of which can be around 16 cm. It mainly overlies the induction heating coil IR2 or its relative coverage is about 65% and is greater than the relative coverage of the induction heating coil IR3 which is about 25% covered.
  • a small pot TR2, approximately 13 cm in diameter, is placed over the rear induction heating coil IR4 and only very slightly overlaps or covers the induction heating coil IR3. A relative coverage of about 45% is determined for the induction heating coil IR4.
  • TL1 covers all four left induction heating coils IL1 to IL4.
  • This TL1 roaster is even bigger than the one from 2 .
  • the pan detection device determines a relative coverage of approximately 90% for the two central induction heating coils IL2 and IL3, while the induction heating coils IL1 and IL4 have a relative coverage of only approximately 50% to 60%. Therefore, the existence of the aforementioned 5th case is determined, namely with the 1st sub-case. As a result, it is determined that the four induction heating coils IL1 to IL4 are bridged to each other and operated together at the same power level.
  • the 2nd sub-case 5.2 of the 5th case is determined, so that the 1st sub-case 5.1 shown on the left with the single, very large cooking vessel continuously covering all four induction heating coils is not determined. Furthermore, since the relative coverages of the two middle induction heating coils IR2 and IR3 are less than the two outer induction heating coils IR1 and IR4, and thus exactly the inverse case to the left representation according to the 1st subcase 5.1, it is determined here that a total of two pots TR1 and TR2 are set up. Thus, the two front induction heating coils IR1 and IR2 are operated in common and bridged, and the two rear induction heating coils IR3 and IR4 as well.
  • a power setting can therefore take place jointly for both. From the comparison of the relative coverages to one another, the pot detection device can also determine that the front pot TR1 is placed more above the frontmost induction heating coil IR1 and the rear pot TR2 is placed more above the rear induction heating coil IR4.
  • a small pot TL1 is placed on the left above the induction heating coil IL2 in such a way that it only covers this induction heating coil and none of the two neighboring induction heating coils IL1 or IL3. Its diameter is even smaller than that in 3 and can be around 10 cm.
  • the relative coverage of the induction heating coil IL2 is found to be around 40%.
  • a slightly larger pot TL2 with a diameter of about 18 cm is set up above the two rear induction heating coils IL3 and IL4.
  • the relative coverage of the induction heating coil IL3 is found to be about 65% and the rear induction heating coil IL4 is found to be about 45% relative coverage.
  • the aforementioned 7th case is determined from this information, that is to say two cooking vessels TL1 and TL2 are set up above the three induction heating devices IL2 to IL4. At the same time, however, it is not possible to determine more precisely over which two induction heating coils a single pot is placed together. This is due to the fact that here the relative coverages of the outer induction heating coils IL2 and IL4 are equal and again smaller than the relative coverage of the induction heating coil IL3 in between. The controller 17 therefore refrains from operating two induction heating coils IL in a bridged manner and with one another, since the distinction is not correspondingly possible.
  • the controller 17 can determine that the relative coverage of the intermediate induction heating coil IL3 is less than in the 3rd case in FIG 2 Left. Therefore, not a single large cooking vessel in the form of a roaster or the like. cover all three induction heating coils.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
EP22210287.3A 2021-12-21 2022-11-29 Procédé de fonctionnement d'une plaque de cuisson et plaque de cuisson Pending EP4203608A1 (fr)

Applications Claiming Priority (1)

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DE102021214821.2A DE102021214821B3 (de) 2021-12-21 2021-12-21 Verfahren zum Betrieb eines Kochfelds und Kochfeld

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KR (1) KR20230095004A (fr)
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054973A1 (de) 2006-11-15 2008-05-29 E.G.O. Elektro-Gerätebau GmbH Induktive Kochzone, Induktionskochfeld und Ansteuerverfahren
DE102009018134A1 (de) * 2009-04-15 2010-09-16 E.G.O. Elektro-Gerätebau GmbH Induktionsheizeinrichtung und Verfahren zum Betrieb einer Induktionsheizeinrichtung
US20120024835A1 (en) * 2009-04-17 2012-02-02 BSH Bosch und Siemens Hausgeräte GmbH Cooktop having a detection assembly and method for operating a cooktop
EP2833967A1 (fr) 2012-04-02 2015-02-11 Medical Development Technologies S.A. Dispositif d'implant et système d'ablation d'une paroi artérielle rénale depuis l'intérieur
EP2688366B1 (fr) * 2012-07-20 2017-01-18 BSH Hausgeräte GmbH Dispositif de champ de cuisson
EP3028535B1 (fr) * 2013-07-31 2019-09-11 BSH Hausgeräte GmbH Système de table de cuisson
EP3028536B1 (fr) * 2013-07-31 2020-04-22 BSH Hausgeräte GmbH Système de table de cuisson

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3270661A1 (fr) 2011-03-28 2018-01-17 Samsung Electronics Co., Ltd. Procédé de commande d'appareil de cuisson à chauffage par induction
ES2634872T3 (es) 2013-07-31 2017-09-29 BSH Hausgeräte GmbH Dispositivo de encimera de cocción
DE102017212216A1 (de) 2017-07-17 2019-01-17 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betrieb eines Kochfeldes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054973A1 (de) 2006-11-15 2008-05-29 E.G.O. Elektro-Gerätebau GmbH Induktive Kochzone, Induktionskochfeld und Ansteuerverfahren
DE102009018134A1 (de) * 2009-04-15 2010-09-16 E.G.O. Elektro-Gerätebau GmbH Induktionsheizeinrichtung und Verfahren zum Betrieb einer Induktionsheizeinrichtung
US20120024835A1 (en) * 2009-04-17 2012-02-02 BSH Bosch und Siemens Hausgeräte GmbH Cooktop having a detection assembly and method for operating a cooktop
EP2833967A1 (fr) 2012-04-02 2015-02-11 Medical Development Technologies S.A. Dispositif d'implant et système d'ablation d'une paroi artérielle rénale depuis l'intérieur
EP2688366B1 (fr) * 2012-07-20 2017-01-18 BSH Hausgeräte GmbH Dispositif de champ de cuisson
EP3028535B1 (fr) * 2013-07-31 2019-09-11 BSH Hausgeräte GmbH Système de table de cuisson
EP3028536B1 (fr) * 2013-07-31 2020-04-22 BSH Hausgeräte GmbH Système de table de cuisson

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US20230199920A1 (en) 2023-06-22
KR20230095004A (ko) 2023-06-28
CN116293842A (zh) 2023-06-23

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