EP4108047A1 - Système de cuisson et procédé de fonctionnement - Google Patents

Système de cuisson et procédé de fonctionnement

Info

Publication number
EP4108047A1
EP4108047A1 EP21700558.6A EP21700558A EP4108047A1 EP 4108047 A1 EP4108047 A1 EP 4108047A1 EP 21700558 A EP21700558 A EP 21700558A EP 4108047 A1 EP4108047 A1 EP 4108047A1
Authority
EP
European Patent Office
Prior art keywords
cookware
induction
signals
devices
assignment
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
EP21700558.6A
Other languages
German (de)
English (en)
Inventor
Nils Marius GEHRING
Christoph Müller
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4108047A1 publication Critical patent/EP4108047A1/fr
Pending legal-status Critical Current

Links

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
    • H05B6/10—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
    • H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
    • 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
    • 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
    • H05B2213/06—Cook-top or cookware capable of communicating with each other

Definitions

  • the present invention relates to a cooking system and a method for operating such a cooking system.
  • the cooking system comprises at least one hob device, at least one cookware and at least one evaluation device, the hob device having at least one installation surface for placing cookware and at least two induction devices for heating the cookware placed on the installation surface.
  • the cookware is suitable and designed to be heated by means of at least one induction device.
  • at least one transmitting device is assigned to each of the induction devices of the hob device and the cookware comprises at least one receiving device. In this case, at least one transmitting device sends at least one electromagnetic signal at least temporarily, which signal is received by the receiving device of the cooking utensil when the cooking utensil is heated by the corresponding induction device.
  • the hob automatically detects where a pot is placed in order to activate the corresponding induction coils.
  • Various systems have become known for this purpose.
  • systems have also become known in which the induction coils emit signals which are recognized and further processed by the standing pot.
  • the method according to the invention is suitable for operating a cooking system comprising at least one hob device, at least one cookware and at least one evaluation device.
  • the hob device comprises at least one set-up area for setting up cookware and at least one generator device with at least two induction devices for heating the cookware set up on the set-up area.
  • the cookware is suitable and designed to be heated by means of at least one induction device.
  • At least one transmitting device is assigned to the induction devices of the hob device and the cookware comprises at least one receiving device.
  • the transmitting devices each send at least one electromagnetic signal, at least at times, which is received by the receiving device of the cooking utensil when the cooking utensil is heated by the corresponding induction device.
  • At least one sequence of electromagnetic signals as assignment signals encodes a signature for a specific induction device, so that an assignment of the cookware to at least one induction device is possible. Furthermore, at least one further electromagnetic signal is transmitted as an information signal at a predetermined time interval from at least one of the assignment signals, the distance from the assignment signal encoding a specific property.
  • the evaluation device is in particular in contact or in operative connection with the hob device and / or the cookware, the evaluation device preferably being part of the hob device or being able to be integrated into it.
  • the evaluation device can, however, also be assigned to the cookware and / or preferably be provided as a separate device which is connected to the cookware and / or the hob device.
  • the function of the evaluation device can also be made available by a central control device for several household appliances, which can be integrated separately from a household appliance or also into a household appliance.
  • the cookware preferably comprises at least one communication device by means of which information and / or the received assignment signals can be forwarded to the evaluation device.
  • a communication device can take place, for example, via Bluetooth, WLAN, radio or the like or comprise such communication means.
  • the generator device includes in particular the induction devices, each of which preferably includes at least one induction coil, by means of which the cookware can be excited or heated.
  • the generator device can preferably also comprise further components of the power electronics and / or be connected to them.
  • the information signal encodes at least one property.
  • This property can in particular be at least one state of the hob device, the generator and / or the induction devices. It is particularly advantageous if the operating mode of the hob device, the generator and / or the induction devices is transmitted as a property.
  • the type of hob device that is used can preferably also or exclusively be transmitted as a property. In particular, it can be transmitted that a fully integrated hob with a set-up area with certain properties or parameters is used.
  • the cooking process of the cookware can then preferably be adapted accordingly.
  • One A property is in particular the temperature, at least one operating parameter, a button status, the food to be prepared and / or the like.
  • the property is conveyed by the information signal.
  • certain properties and / or property combinations are stored in the cookware, the evaluation device and / or the hob device, which properties are recognized as a coded property depending on the distance between the information signal and an assignment signal.
  • the at least one information signal can preferably be sent before or after the assignment signals or before or after the assignment signature. Depending on the configuration, the information signal can also be sent within the assignment signature. Then, depending on the configuration, a suitable number of electromagnetic signals can preferably be selected in order to be able to differentiate between the assignment signals and the information signal or signals, for example via defined flanking signals or electromagnetic signals.
  • the information signal is preferably sent before the first or after the last assignment signal.
  • At least one transmission device is made available by at least one induction device. In this way, the design effort is minimized, since existing components can be used as the transmission device.
  • At least one receiving device preferably comprises at least one coil.
  • a receiving device for the signals transmitted by the transmitting device can be provided in a simple manner.
  • An electromagnetic signal is in particular at least one electromagnetic excitation which is output or transmitted by the transmitting device.
  • the method according to the invention offers many advantages.
  • a considerable advantage is that, in addition to the coding of the pot position, further information can be transmitted from the hob to the cookware via the electromagnetic signals.
  • a speed-optimized data transmission or the frequency of the data transmission can be adjusted.
  • Known cookware that can communicate with a hob device a so-called system cookware, usually sends information such as process data, TE signature ping, temperature, button status, etc. always at the same interval, even if this is for some applications could be longer.
  • longer intervals are sufficient than active in operation if an "exact" temperature is set in the cooking utensil or if, for example, milk must be prevented from boiling over.
  • z. B an application is conceivable when the induction devices are not built into a classic hob with a surface made of glass ceramic, but are built into a so-called fully integrated hob.
  • the induction devices can then be installed, for example, under and / or in a ceramic plate or also under or in a conventional worktop. Then it makes sense, as an information signal or property, the fully integrated installation of the generator device under z. B. to send a ceramic plate to the cookware. This information can then be recognized by the system cookware and sent to the process engineering. This in turn then limits z. B. surface-dependent the maximum temperature and / or the DT / 1, and / or other parameters or values.
  • selective data transmission can take place. This is useful, for example, when the cookware or the energy store or battery of the cookware is charged. In this case it is sufficient that the current state of charge and the software version are transmitted. If the software version is not up-to-date and the state of charge is sufficient, the process engineering board in the hob device carries out an update, depending on the design. Here, too, the power consumption of the electronics in the cookware can be reduced. All three applications described above preferably provide energy-optimized data transmission. With a lower power consumption, depending on the application, smaller charging systems can then be provided for the cookware.
  • intervals for a rechargeable battery or battery change can be extended considerably or changes can even be avoided.
  • the transmission of certain properties enables operation on alternative surfaces to glass ceramics, in particular without adapting the generator or the cookware.
  • the electromagnetic signals of the individual transmission devices are preferably transmitted with a predetermined time offset and / or the assignment signals and / or the information signals of the individual induction devices include different predetermined sequences of electromagnetic signals as a signature, so that the evaluation device transmits the electromagnetic signals detected by the receiving device to the individual induction devices can assign and so make an assignment of the cookware to at least one induction device and can assign a property. In this way, a clear assignment can be made even with several coils.
  • At least one interval and / or a frequency of the transmission of electromagnetic signals depend at least temporarily on at least one property recognized from at least one information signal. For example, by transmitting a certain operating state of the hob device, the generator device and / or the induction device, the frequency of the signal transmission can be reduced, for example in the preparation mode and / or when using residual heat. For example, when boiling milk, the food can be transferred as a property, which preferably leads to more frequent signal transmission.
  • At least one interval and / or a frequency of the transmission of electromagnetic signals depend at least temporarily on the energy state of at least one energy store. This ensures a kind of emergency operation, for example if the state of charge of the energy store, such as a rechargeable battery, would no longer be sufficient for the entire cooking process with normal data transmission.
  • at least one cooking process is adapted on the basis of at least one property recognized from at least one information signal. For example, depending on the worktop with fully integrated hobs or other properties such as the food, the cooking process can be adapted.
  • the assignment signals of the individual induction devices preferably include the same predetermined sequences of electromagnetic signals, which are distinguished by the time offset. In this way, induction devices can be clearly assigned to cookware.
  • At least two generator devices are particularly preferably provided and the assignment signals of the individual induction devices each include a predetermined sequence of at least three electromagnetic signals as a signature, with a first distance between the first electromagnetic signal and the second electromagnetic signal being coded by the generator device and a second distance between the second electromagnetic signal the induction device of the corresponding generator device encodes the third electromagnetic signal or vice versa.
  • the generator device and the induction device can be clearly assigned to a cookware.
  • the first distance from generator device to generator device becomes greater and the second distance from induction device to induction device of a respective generator device becomes smaller.
  • the information signal is preferably a fourth electromagnetic signal with a third distance from the third electromagnetic signal, the third distance encoding a property of the hob device, at least one generator device and / or at least one induction device.
  • the information signal can also be sent out as the first signal, the spacing of the assignment signals then being configured accordingly.
  • At least two induction devices of at least one generator device transmit an electromagnetic signal at least once at the same time. Even more information can be transmitted in a preferably 4-digit binary code in which up to 16 possible modes are then preferably possible.
  • the received electromagnetic signals are preferably translated into a unique identification number which corresponds to the coverage of certain induction devices and / or corresponds to a certain property.
  • the received predetermined sequences of electromagnetic excitations of the corresponding induction devices are entered in a common time curve, the identification number being determined on the basis of the signal pattern.
  • the intensity of at least one electromagnetic signal is preferably taken into account.
  • the intensity of the electromagnetic signals is particularly preferably taken into account in order to conclude that individual induction devices are covered by cooking utensils.
  • the cooking system comprises at least one hob device, at least one cookware and at least one evaluation device.
  • the hob device comprises at least one set-up area for setting up cookware and at least two induction devices for heating the cookware set up on the set-up area.
  • the cookware is suitable and designed to be heated by means of at least one induction device, with at least one transmission device being assigned to each of the induction devices of the hob device.
  • the cookware comprises at least one receiving device, the transmitting devices being suitable and designed to transmit at least one electromagnetic signal at least at times, and the receiving device being suitable and designed to receive an electromagnetic signal when the cookware is heated by the corresponding induction device.
  • the evaluation device is suitable and designed to recognize a signature for a specific induction device from at least one sequence of electromagnetic signals as assignment signals, so that an assignment of the cookware to at least one induction device is possible.
  • the evaluation device is suitable and designed to recognize at least one property of the hob device, a generator device and / or the corresponding induction device from at least one further electromagnetic signal with a predetermined time interval to at least one of the assignment signals as an information signal.
  • the cooking system according to the invention also offers the advantages that have already been stated above for the method according to the invention.
  • the cookware preferably comprises at least one energy store.
  • Such an energy store can be, for example, a permanently installed and / or exchangeable battery and / or a permanently installed and / or exchangeable rechargeable battery.
  • Other energy stores can also be used sensibly, depending on the configuration. Especially when using from accumulators, these can be charged inductively by the induction devices.
  • the interval and / or the frequency of the emission of the electromagnetic signals depend on a recognized property and / or the energy state of the energy store. This is particularly useful in preparation mode and / or when using residual heat.
  • An adapted transmission of signals depending on the application, conserves the energy storage device by reducing the number of signals sent and / or optimizing processes through the more frequent transmission of data.
  • Another method according to the application is suitable for operating a cooking system comprising at least one hob device, at least one cookware and at least one evaluation device.
  • the hob device has at least one set-up area for setting up cookware and at least one generator device with at least two induction devices for heating the cookware set up on the set-up area.
  • the cookware is suitable and designed to be heated by means of at least one induction device.
  • at least one transmitting device is assigned to each of the induction devices of the hob device, and the cookware includes at least one receiving device. The transmitting devices each send at least one assignment signal, at least at times, which is received by the receiving device of the cookware when it is heated by the corresponding induction device.
  • the assignment signals of the individual transmitting devices are sent out with a predetermined time offset so that the evaluation device can assign the assignment signals detected by the receiving device to the individual induction devices and thus assign the cookware to at least one induction device.
  • the assignment signals of the individual induction devices can include different predetermined sequences of electromagnetic excitations as a signature.
  • the evaluation device is in particular in contact or in operative connection with the hob device and / or the cookware, the evaluation device preferably being part of the hob device or being able to be integrated into it.
  • the evaluation device can, however, also be assigned to the cookware and / or preferably be provided as a separate device which is connected to the cookware and / or the hob device.
  • the function of the evaluation device can also be used by a central control device for several household appliances Are made available, which can be integrated separately from a household appliance or in a household appliance.
  • the cookware preferably comprises at least one communication device by means of which information and / or the received assignment signals can be forwarded to the evaluation device.
  • a communication device can take place, for example, via Bluetooth, WLAN, radio or the like or comprise such communication means.
  • the generator device includes in particular the induction devices, each of which preferably includes at least one induction coil, by means of which the cookware can be excited or heated.
  • the generator device can preferably also comprise further components of the power electronics and / or be connected to them.
  • This method also offers many advantages.
  • a considerable advantage is that the method according to the invention makes it possible to provide automatic detection of the pot position or the position of cookware on the hob device or on the installation surface of the hob device. It can thus be recognized which induction devices or which induction coils are covered by cookware.
  • the time-shifted sending of assignment signals creates the possibility of assigning the assignment signals to a specific induction device. A specific assignment to a specific coil can thus also take place with the same assignment signal and / or with the same signal components due to the time offset.
  • a cookware not only stands on an induction coil or is operated by an induction coil, but that, for example, a cookware only partially or completely covers several induction coils.
  • the assignment signals of the individual induction devices preferably include the same predetermined sequences of electromagnetic excitations, which are differentiated via the time offset.
  • a simple assignment signal can be made available via such signals, for example ping signals.
  • Such an electromagnetic excitation or such a ping signal can preferably be made available by at least one area of the electromagnetic excitation of an induction device, a specific section or area or value of the half-waves used for the excitation being used as the signal.
  • an unambiguous assignment to a coil can preferably be made via the type of electromagnetic signal of the individual coils.
  • the number of electromagnetic signals in the sequence or the number of ping signals and also the distance between the ping signals can be used as a distinguishing feature for predetermined sequences of electromagnetic excitations. Even with different signal sequences for the individual induction devices, the time offset can ensure that the signals from the individual coils do not overlap and can be evaluated separately.
  • At least two generator devices are preferably provided and the assignment signals of the individual induction devices each include a predetermined sequence of at least three electromagnetic excitations as a signature.
  • the first distance between the first electromagnetic excitation and the second electromagnetic excitation encodes the generator device of the corresponding induction device and a second distance between the second electromagnetic excitation and the third electromagnetic excitation encodes the corresponding induction device of the corresponding generator device, or vice versa.
  • the signal sequence contains the information on the corresponding generator device and on the corresponding induction device.
  • the first distance from generator device to generator device is preferably greater and the second distance from induction device to induction device of a respective generator device becomes smaller.
  • Such a system of the signal signatures enables a particularly advantageous, precise and unmistakable coding of the individual induction devices to take place even when several induction devices are covered.
  • the electromagnetic stimuli received are translated into a unique identification number which corresponds to the coverage of certain induction devices. Because the ping signature is translated into a specific identification number that is unique for the coverage of induction devices, information can be transmitted with a very small volume of data.
  • the method of binary adding can be used, for example and preferably, in order to convert the presence of signals or the absence of signals into a specific number.
  • the resulting identification numbers are unique for a certain signature or combination of signatures.
  • these identification numbers can be stored in a list, for example, with a specific, for example eight-digit, identification number being assigned a consecutive number, for example a two-digit number.
  • the entire processing of the data is preferably carried out in a chip in the cookware.
  • a table of the individual identification numbers for example, a concordance list for the 2-digit numbers can be stored on this chip.
  • information from cookware to the hob can be transmitted with extremely low data. This can be done, for example, via Bluetooth or another suitable data interface.
  • the received predetermined sequences of electromagnetic excitations of the corresponding induction devices are entered in a common time profile, the identification number being determined on the basis of the signal pattern resulting therefrom.
  • the received signals are brought into an overall context with all received signals, regardless of whether they belong to a specific induction device. Due to the uniqueness of the individual signatures, depending on the design, a unique signature composition is created, which can be translated into a specific identification number for the corresponding combination of specific induction devices or individual induction devices.
  • intensity is understood to mean, in particular, the amplitude of electromagnetic radiation or of the electromagnetic signal measured by the receiving device.
  • intensity is understood to mean, in particular, the amplitude of electromagnetic radiation or of the electromagnetic signal measured by the receiving device.
  • the intensity of the assignment signals is then taken into account in order to conclude that individual induction devices are covered by cooking utensils.
  • conclusions can be drawn that a coil is being covered by a cookware and, from the amplitude, the extent of the coverage.
  • At least one transmission device is preferably provided by at least one induction device.
  • at least one induction coil of at least one induction device is used as the transmission device.
  • At least one receiving device particularly preferably comprises at least one coil.
  • a coil can in particular be arranged in the base of the cookware.
  • At least two receiving devices are provided in the cookware. Either two separate receiving devices can be provided or only one receiving device with two receivers, the signals of the two receivers then preferably being able to be evaluated differently or separately.
  • two separate receiving devices or at least two separately evaluable receivers it is possible to recognize the orientation of the cookware and also movements of the cookware on the installation surface, whereby the translatory movement of the cookware over the installation surface is basically also possible with only one receiving device is.
  • At least one orientation of the cookware on the installation surface is preferably recognized. This is possible in particular if at least two receiving devices are provided in the cookware.
  • At least one operating parameter is preferably used an induction device set depending on the orientation of the cookware.
  • an induction device set can be made available by providing two receiving devices, for example in the bottom of the roasting pan.
  • the two receiving devices can be used to identify which of the two coils is pointing in the direction of the user.
  • the applicant reserves the right to use cookware with at least two reception devices.
  • At least one movement of the cookware on the installation surface is preferably recognized.
  • the movement of the cookware over the installation surface can be detected both with a coil and with several receiving devices in the cookware.
  • the movement of the cookware on the installation surface preferably includes at least one translational and / or at least one rotational movement. For example, it can be recognized whether the cookware is being pulled away from an original position and / or whether the cookware is rotated to the original position. Certain operating parameters can be changed or set by both actions, depending on the configuration.
  • a rotational movement is preferably recognized in a cookware which comprises two receiving devices.
  • At least one operating parameter of the hob device is preferably set on the basis of the movement. For example, by pulling a piece of cookware away from the induction device currently in use, the hob device can be automatically turned off, at least for this cookware.
  • the power of the corresponding induction device it is possible, for example, for the power of the corresponding induction device to be changed on the spot by turning the cookware. For example, depending on the configuration, turning clockwise can increase the power, while turning counterclockwise brings about a reduction in power.
  • At least one set operating parameter of at least one induction device that is set for a cookware is transmitted to the then relevant induction device or the relevant induction devices when the cookware is moved.
  • the setting for a cookware can be set by moving the pot on the installation surface be transferred to another induction device if the pot is pushed to another place, for example due to a lack of space or for other reasons.
  • the transmission devices preferably send the assignment signals during the operation of at least one induction device.
  • the electromagnetic radiation used to heat the cookware or areas thereof can also be used as an assignment signal.
  • the transmission devices also send the assignment signals when the hob device or the induction devices are not in operation.
  • relatively low electromagnetic radiation is used, in which case a pot position can also be detected when the hob device is switched off or none of the induction devices is in operation.
  • a display device on the cookware is preferably activated via the assignment signals and / or a change in the assignment signals.
  • the display of parameters or instructions to the user and / or the monitoring of a cooking process can be supported.
  • the applicant reserves the right to claim such cookware.
  • Another hob system comprises at least one hob device, at least one cookware and at least one evaluation device, the hob device comprising at least one installation surface for setting up cookware and at least two induction devices for heating the cookware placed on the installation surface.
  • the cookware is suitable and designed to be heated by means of at least one induction device.
  • the induction devices of the hob device are each assigned at least one transmitting device, the cookware comprising at least one receiving device.
  • the transmitting devices are suitable and designed to transmit at least one assignment signal at least at times, the receiving device being suitable and designed to receive these signals when the cookware is heated by the corresponding induction device.
  • the evaluation device is suitable and designed to use the assignment signals transmitted by the transmitting device with a time offset and detected by the receiving device and / or by the detected signatures to assign the cookware to at least one induction device from the predetermined sequences of electromagnetic excitations of the individual assignment signals of the individual induction devices.
  • This cooking system also offers the advantages already mentioned above for the method according to the invention.
  • At least one transmission device is preferably provided by at least one induction device or at least one induction coil of the at least one induction device.
  • at least one transmitting device is preferably provided by at least one primary coil.
  • At least one receiving device particularly preferably comprises at least one coil or at least one secondary coil.
  • At least two receiving devices are provided in the cookware.
  • either two separate receiving devices are preferably provided and / or one receiving device with at least two receivers that can be evaluated separately.
  • the cookware comprises at least one display device, which can be activated or supplied with information in particular by means of at least one assignment signal and / or at least one change in the assignment signal.
  • Figure 1 is a purely schematic representation of a cooking system according to the invention in a perspective view
  • FIG. 2 shows a purely schematic representation of the provision of assignment signals by means of an induction coil of an induction device
  • FIG. 3 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 4 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 5 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 6 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 7 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 8 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 9 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils
  • FIG. 10 shows a purely schematic representation of the use of a cookware with two receiving devices in two different orientations on the hob device
  • FIG. 11 shows a purely schematic representation of the arrangement of cookware with two receiving devices on a hob device
  • FIG. 12 shows a purely schematic representation of the assignment of cookware to specific induction devices or induction coils in accordance with a further exemplary embodiment
  • FIG. 13 shows a purely schematic representation of the conversion of ping signatures into identification numbers
  • FIG. 14 shows a further, purely schematic representation of the conversion of ping signatures into identification numbers
  • FIG. 15 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils by means of an exemplary embodiment of the method according to the invention
  • FIG. 16 shows a purely schematic representation of the assignment of cookware to certain induction devices or induction coils by means of a further exemplary embodiment of the method according to the invention.
  • FIG. 17 shows a purely schematic representation of the assignment of cooking utensils to certain induction devices or induction coils by means of another exemplary embodiment of the method according to the invention.
  • a cooking system 200 according to the invention is shown purely schematically in a perspective view.
  • the cooking system 200 comprises a hob device 1 which is built into the worktop 301 of a kitchen unit 300.
  • the hob device 100 comprises an installation surface 2 on which cookware 100 can be placed.
  • a plurality of induction devices 3, by means of which the cookware 100 standing on the installation surface 2 can be heated, are arranged uniformly below the installation surface 2.
  • only two induction devices 3 are indicated in FIG.
  • the cooking system 200 further comprises an evaluation device 50 which, in the exemplary embodiment shown here, is integrated into the hob device 1.
  • the hob device 1 comprises several transmission devices 4 for sending at least one assignment signal 5, via which the position of the cookware 100 on the installation surface 2 can be automatically recognized in interaction with the cookware 100 and the evaluation device 50. It is thus possible to assign the induction devices 3 to a cookware 100 standing on the installation surface 2.
  • the transmission devices 4 are integrated into the induction devices 3 or are made available by the induction coils of the induction devices 3.
  • the cookware 100 here has a receiving device 101 which, in the exemplary embodiment shown, is also provided by a coil 102 on or in the bottom 104 of the cookware 100. Depending on the configuration, more than one receiving device 101 and / or several receivers can also be provided.
  • the transmission devices 4 transmit at least temporarily assignment signals 5 which are received or detected by the receiving device 101 or, depending on the configuration, with a plurality of receiving devices 101 of the cookware 100 when the cookware 100 is arranged on the installation surface 2 in such a way that it is heated by these induction devices 3.
  • the received assignment signals 5 and / or a further processed signal are transmitted to the evaluation device 50 by means of a suitable communication device (not shown in detail).
  • the communication device can be integrated into the cookware 100 or, depending on the configuration, can also be made available as a separate assembly which can access the receiving device 101 of the cookware 100 via suitable functions.
  • the cookware 100 can also comprise a display device 103 which is activated by the assignment signals 5, by changes in the assignment signals or in some other way. It is thus also possible to transmit information to the cookware via the assignment signals and to display it on the display device 103.
  • a rechargeable battery 106 is provided as the energy store 105 in the exemplary embodiment shown here. In the exemplary embodiment shown, this can be charged in a charging station when not in use. The energy supply takes place here during the operation of the hob device 1 predominantly via the induction devices 3.
  • FIG. 4 The mode of operation of the method according to the invention is shown purely schematically in FIG.
  • Four induction devices 3 of a hob device 1 are shown, the induction coils of induction devices 3 functioning as transmission devices 4.
  • the half-waves are indicated in FIG. 2, which are emitted by the induction devices 3 or the induction coils of the induction devices 3 for heating a cookware 100.
  • the assignment signal 5 a range of these half-waves or a specific voltage value of the electromagnetic radiation is used as the assignment signal 5.
  • assignment signals 5 for induction devices 3 are shown below the row of half-waves. It is shown in the first rows 1-4 that a time-shifted assignment signal 5 is transmitted by the four induction devices 3 or the 4 transmission devices 4, the pattern of the assignment signals being identical. So-called ping signals are provided here, a transmission pattern comprising three signals with a specific time interval.
  • the time offset in the exemplary embodiment shown here is approximately 10 ms.
  • the time offset can, however, also be selected differently in suitable ranges.
  • a signal structure is thus formed here over the distance between the individual signals of the individual transmission devices, which is different and unambiguous for each induction device.
  • a specific induction device 3 or a specific transmission device 4 can thus be inferred from the structure of the assignment signals or the ping signals alone.
  • the assignment signals 5 received from a cookware are shown purely schematically, with a cookware 100 only covering the first induction coil 3 in the exemplary embodiment shown here.
  • the signal received and evaluated in the evaluation device 50 corresponds to the signal structure and the time component of the first induction device 3. It is thus possible to unambiguously infer the position of the cookware 100 on the installation surface 2.
  • FIG. 4 shows that the cookware 100 stands on the first and third induction device 3.
  • the corresponding signal is shown to the right, whereby an assignment to certain induction devices 3 can be made clearly via the signal structure and the temporal reception of the corresponding assignment signals 5 by the receiving device 101, so that the evaluation device 50 determines the exact position of the cookware 100 on the installation surface 2 recognizes.
  • FIGS. 5 and 6 a possibility is shown purely schematically to distinguish the assignment signals 5 from more than four induction devices 3 or the induction devices of several generators.
  • the induction devices 3 are divided into 2 groups of four, the distinction between the first and the second group being made by a phase shift. In this case, a phase shift of 120 ° has been achieved between the induction devices 3 of a first generator A and those of a second generator B.
  • FIG. 6 the same arrangement as in FIG. 5 is shown again, with the cookware 100 set up now covering four induction devices 3.
  • the data or signals received by the receiving device 101 of the cookware 100 and transferred to the evaluation device 50 are shown again.
  • FIGS. 7 to 9 it is shown purely schematically that the amplitude or the intensity of the received assignment signal 5 can contribute to the optimization of the position detection.
  • the percentage coverage of induction devices 3 by a cookware 100 the level or amplitude or intensity of the received assignment signals 5 can be determined unambiguously.
  • the received assignment signal 5 of the first induction device 3 is significantly higher than that of the second induction device 3.
  • the percentage coverage of the respective induction device can be inferred from the strength or amplitude or intensity of an assignment signal 5 received according to the coverage of an induction device 3.
  • the same arrangement as in FIG. 7 is shown again in FIG. 8, the first two induction devices 3 being evenly covered by a cookware 100.
  • the corresponding assignment signal 5 is shown next to it, the same amplitude or signal level of the assignment signals 5 here indicating approximately 50% coverage of the respective induction devices 3.
  • FIG. 9 like the two previous figures, it is shown that the percentage coverage can be inferred from the height or the amplitude or the intensity of an assignment signal 5.
  • the first four 4 induction devices 3 are covered differently by a cookware 100, the first and second induction devices 3 being covered equally and the third and fourth induction devices 3, the first and second induction devices being covered to a greater extent than the third and fourth induction devices the fourth.
  • the corresponding received assignment signals 5 are shown on the right.
  • a cookware 100 can also have more than one receiving device 101. Then, in addition to the position on the installation surface 2 of a hob device 1, the orientation of the cookware 100 on the installation surface 2 can also be recognized.
  • the direction in which the cookware 100 is located on the installation surface 2 is indicated purely schematically by the arrow.
  • the cookware 100 is shown purely schematically once again in the middle in order to show the two receiving devices 101 again.
  • a cookware 100 can be assigned a different operating mode. For this purpose, depending on the orientation of the cookware 100 on the installation surface 2 or depending on which receiving device 101 is facing or facing away from the user, different cooking zones are made available.
  • uniform heating of the cookware 100 can be provided, for example.
  • FIG. 11 it is indicated purely schematically that by moving the cookware 100 on the installation surface 2 of a hob device 1, for example, certain operating parameters can be set. This is possible both with only one receiving device 101 and with a plurality of receiving devices 101.
  • rotational movement on the installation surface 2 can also be recognized, so that operating parameters can be changed, for example, by rotating the cookware 100.
  • the power can be increased, with the power being reduced when it is rotated counterclockwise.
  • the assignment signals 5 can not only be transmitted offset in time, but can additionally or exclusively have a certain signal signature or ping signature .
  • a first generator 6 with four induction devices 3 or induction coils, a second generator 7 with four induction devices 3 and a third generator with four induction devices 3 are provided.
  • both temporally offset assignment signals 5 and signal signatures are used in the exemplary embodiment shown here.
  • an assignment signal 5 can either be transmitted or received or not.
  • each induction device sends out a predetermined sequence of electromagnetic excitations as a signature, the signal sequences from the induction devices 3 each being transmitted to a generator device 6, 7, 8 with a time offset.
  • the signal sequences are each started one signal block later.
  • the predetermined sequence of electromagnetic excitations as a signature has three excitations in the exemplary embodiment shown here, a first distance 9 between the first excitation and the second excitation defining the generator device 6, 7, 8. This first distance 9 is greater here from the first generator device 6 to the third generator device 8.
  • a second distance 10 defines the corresponding induction device 3, which, for the sake of clarity, is labeled A1, A2, A3, A4, B1, C3 and C4 according to its association with a specific generator device 6, 7, 8.
  • the distance 10 from induction device A1 to A4, B1 to B4 and C1 to C4 becomes smaller and smaller.
  • FIGS. 13 and 14 show the further processing of the signal sequences or signatures determined.
  • the determined signals are entered into the 23 signal blocks 12 provided here, regardless of whether they belong to a specific signal sequence of a specific induction device 3.
  • the signal pattern entered in this way is converted into an eight-digit number or
  • Identification number 11 converted by binary addition. Other methods can also be used to convert the pattern to a unique number. This identification number 11 corresponds to a specific coverage of induction devices 3 by a cookware 100.
  • This identification number 11 could be transmitted to the hob without an excessive volume of data.
  • a table is stored in a chip in the cookware 100, in which each identification number 11 is assigned a consecutive number, which in FIGS. 13 and 14 in the line next to the Identification number 11 is entered. In this way, the data volume during the transmission from the cookware 100 to the hob 1 can be reduced again.
  • FIG. 15 the functioning of the method according to the invention with a cooking system 200 according to the invention is shown purely schematically.
  • a hob device 1 with three generator devices 6, 7, 8 is provided, each of which has four induction coils 3.
  • a cookware 100 is placed on the installation surface 2 of the hob device 1 and covers the induction device A2 of the first generator device 6 and the induction device B1 of the generator device 7.
  • the signal coding and the different signatures of the induction devices 3 are shown below in FIG.
  • a first distance 9 is provided between the first allocation signal 5 and the second allocation signal, which encodes a specific generator device 6, 7, 8.
  • a second distance 10 is provided, which encodes a specific induction device 3. Because the starting point of the signals is not the same, the four induction devices 3 of three generator devices 6, 7, 8 in each case can be clearly differentiated or assigned in the exemplary embodiment shown here.
  • the first distance 9 in the induction devices 3 of a generator device 6, 7, 8 becomes the same in the exemplary embodiment shown here and increases more and more from generator device to generator device.
  • the different induction devices are each coded by a spacing 10 that is smaller.
  • the distances 10 for the respective induction devices 3 in the exemplary embodiment shown are the same for the three generator devices 6, 7, 8.
  • FIG. 15 a further signal block is provided in FIG. 15, which includes information signals 14.
  • These information signals 14 are transmitted at a predetermined distance 15 from one of the assignment signals 5 and code for a specific property of the hob 1, at least one generator device 6, 7, 8 and / or at least one induction device.
  • the information signal is a fourth signal which indicates a property.
  • several information signals 14 can also be transmitted.
  • a third distance 16 is provided between the third assignment signal 5 and the information signal 14, a specific property being coded via the time interval between the last assignment signal 5 and the information signal 14.
  • This property can in particular be at least one state of the hob device, at least one generator device and / or the induction devices. It is particularly advantageous if the operating mode of the hob device, the generator and / or the induction devices is transmitted as a property.
  • the type of hob device that is used can preferably also or exclusively be transmitted as a property.
  • it can be transmitted that a fully integrated hob with a set-up area with certain properties or parameters is used.
  • the cooking process of the cookware can then preferably be adapted accordingly.
  • a property can in particular also be the temperature, at least one operating parameter, a button status, the food to be prepared and / or the like.
  • the energy consumption of the energy store 105 or, in this case, a rechargeable battery 106 of the cookware 100 can be reduced considerably.
  • the induction devices A2 and B1 were recognized via the assignment signals 5.
  • the property “1”, which is defined by the first information signal 14, was transmitted for both induction devices A2 and B1.
  • the “preparation” operating mode is stored in the evaluation device 50 for this property, so that the frequency or the interval of the data transmission can be reduced here. This can save energy.
  • FIG. 16 a further exemplary embodiment of the mode of operation of the method according to the invention with a cooking system 200 according to the invention is shown purely schematically. The situation corresponds to the situation described for FIG. The difference to the previously described exemplary embodiment is that the information signals 14 are not provided after the assignment signals 5, but rather before them.
  • information signals are first sent which encode a specific property. This is followed by the assignment signals which are used for the correct assignment of the active induction devices 3 for a cookware 100.
  • the information signals 14 can, however, also be sent between the assignment signals 5.
  • an unnecessarily large number of electromagnetic signals 13 are necessary in order to form defined blocks, so that assignment signals 5 and information signals can be distinguished.
  • FIG. 15 A further exemplary embodiment is shown purely schematically in FIG. The same situation applies here as in FIGS. 15 and 16. In contrast to the exemplary embodiments shown above, however, the information signals are coded differently.
  • a cookware 100 covers several induction devices 3 of a generator device 6, 7, 8, a generator device 6, 7, 8 outputs two or more electromagnetic signals 13 at once.
  • the distance 15, 16 alone cannot make the information signals 14 to one
  • Assignment signal 5 can be inferred to a specific induction device 3. An overall signal for a property is output here.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

L'invention concerne un système de cuisson (100) et un procédé pour faire fonctionner un système de cuisson (200) comprenant un dispositif de plaque de cuisson (1), un article de batterie de cuisson (100) et un dispositif d'évaluation (50). Le dispositif de plaque de cuisson (1) comprend une surface de placement (2) pour placer des articles de batterie de cuisson (100) et deux dispositifs à induction (3) pour chauffer l'article de batterie de cuisson (100) placé sur la surface de placement (2). L'article de batterie de cuisson (100) est destiné à être chauffé au moyen d'un dispositif à induction (3). Les dispositifs à induction (3) du dispositif de plaque de cuisson (1) sont respectivement associés à un dispositif de transmission (4) et l'article de batterie de cuisson (100) est associé à un dispositif de réception (101), les dispositifs de transmission (4) transmettant chacun à des moments un signal électromagnétique (13) qui est reçu par le dispositif de réception (101) de l'article de batterie de cuisson (100) lorsque l'article de batterie de cuisson (100) est chauffé par le dispositif d'induction correspondant (3). Une séquence de signaux électromagnétiques (13) agissant en tant que signaux d'attribution (5) code une signature pour un dispositif à induction spécifique (3) de sorte qu'il est possible d'attribuer l'article de batterie de cuisson (100) à un dispositif à induction (3). En outre, un autre signal électromagnétique (13) est émis sous la forme d'un signal d'information (14) à un intervalle (15) prédéfini dans le temps à partir de l'un des signaux d'attribution (5), l'intervalle entre le signal d'information (14) et le signal d'affectation (5) codant une propriété spécifique.
EP21700558.6A 2020-02-18 2021-01-13 Système de cuisson et procédé de fonctionnement Pending EP4108047A1 (fr)

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DE102020104130.6A DE102020104130A1 (de) 2020-02-18 2020-02-18 Kochsystem und Verfahren zum Betreiben
PCT/EP2021/050553 WO2021164954A1 (fr) 2020-02-18 2021-01-13 Système de cuisson et procédé de fonctionnement

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EP (1) EP4108047A1 (fr)
KR (1) KR20220139390A (fr)
CN (1) CN115280899A (fr)
DE (1) DE102020104130A1 (fr)
WO (1) WO2021164954A1 (fr)

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DE102023200827B3 (de) 2023-02-02 2024-06-20 BORA - Vertriebs GmbH & Co KG Verfahren zum Betreiben eines Kochfelds, Verfahren zum Betreiben einer Garvorrichtung, Kochfeld und Garvorrichtung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009029253B4 (de) 2009-09-08 2023-03-16 BSH Hausgeräte GmbH Verfahren zum Zuordnen eines Aufsatzgeräts zu einer Basisstation eines Betriebsgeräts und Betriebsgerät
WO2013098240A1 (fr) * 2011-12-30 2013-07-04 Arcelik Anonim Sirketi Système de communication de table de cuisson chauffant par induction
DE102012200294A1 (de) * 2012-01-11 2013-07-11 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Vorrichtung zur Erkennung einer Zugehörigkeit eines Temperatursensors zu einer Kochzone
WO2015028076A1 (fr) 2013-08-29 2015-03-05 Arcelik Anonim Sirketi Appareil de cuisson à induction, appareil de cuisine sans fil et système de communication sans fil
DE102017112945B3 (de) * 2017-06-13 2018-10-25 Miele & Cie. Kg Verfahren zum Betrieb eines induktiven Kochsystems, zugehöriges induktives Kochsystem sowie Kochfeld und Kochgeschirr für ein derartiges induktives Kochsystem
US11064575B2 (en) * 2017-10-19 2021-07-13 Lg Electronics Inc. Induction heating device having improved target object detection accuracy and induction heating system including the same
DE102018221521A1 (de) 2018-12-12 2020-06-18 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betrieb eines Induktionskochfelds

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DE102020104130A1 (de) 2021-08-19
KR20220139390A (ko) 2022-10-14
WO2021164954A1 (fr) 2021-08-26
US20230116143A1 (en) 2023-04-13

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