EP3780906B1 - Inductive hob, system comprising an inductive hob and a setting device, and method for operating a system - Google Patents

Inductive hob, system comprising an inductive hob and a setting device, and method for operating a system Download PDF

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Publication number
EP3780906B1
EP3780906B1 EP20187098.7A EP20187098A EP3780906B1 EP 3780906 B1 EP3780906 B1 EP 3780906B1 EP 20187098 A EP20187098 A EP 20187098A EP 3780906 B1 EP3780906 B1 EP 3780906B1
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EP
European Patent Office
Prior art keywords
cooking hob
signal
heating coil
inductive
controller
Prior art date
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Application number
EP20187098.7A
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German (de)
French (fr)
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EP3780906A1 (en
EP3780906C0 (en
Inventor
Daniel Ebke
Volker Ennen
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
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Miele und Cie KG
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Publication of EP3780906C0 publication Critical patent/EP3780906C0/en
Publication of EP3780906B1 publication Critical patent/EP3780906B1/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/06Control, e.g. of temperature, of power
    • H05B6/062Control, e.g. of temperature, of power for cooking plates or the like
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/06Cook-top or cookware capable of communicating with each other

Definitions

  • the invention relates to a system of the type mentioned in the preamble of patent claim 1 and a method of the type mentioned in the preamble of patent claim 5.
  • a method for detecting the identity of a pot on a hotplate of a hob and a system of a hob with a pot are known.
  • the hob has a pot sensor means by which the presence of a pot on the hob is to be detected.
  • the pot has a temperature sensor and a transmitter, whereby the transmitter is intended to transmit at least two data sets to a receiver of a hob control.
  • the first data set should represent an identification device for an individual pot, while the second data set should concern the temperature state of the pot measured by the temperature sensor. If the pot sensor means has detected the presence of any pot, a heating element should be activated using a power profile template in order to bring about a temperature change in the pot placed on the hotplate.
  • the temperature information sent back to the hob control should then be used to determine whether the temperature profile detected by the temperature sensor on the pot corresponds to the template of the power profile generated by the heating element. If the temperature profile and the performance profile template correspond to one another, the pot should be recognized as being placed on this hotplate using the pot identification device.
  • the invention therefore faces the problem of improving a preparation process on an inductive hob.
  • the advantage that can be achieved with the invention is, in particular, that a preparation process on an inductive hob is improved. Due to the triggering of the wake-up signal by means of a motion sensor on the set-up device and/or a control element on the hob and/or a control element on a third-party device, the operation of the inductive hob and thus the preparation process on the inductive hob is significantly simplified without compromising safety. Accordingly, the system according to the invention and the method according to the invention also conform to standards and can therefore be approved for inductive hobs in accordance with today's safety requirements.
  • the inductive hob provides that the heating coil can be controlled in the standby mode by means of the hob control in such a way that a transfer of operating energy from the inductive hob to the set-up device, which is set up on the cooking area assigned to this heating coil, is made possible by means of the heating coil .
  • the set-up device requires no or only a very small and therefore space-saving energy source.
  • an advantageous development of the system according to the invention provides that the transmitting unit or the transmitting unit and the measuring unit can be supplied with operating energy at a voltage induced by means of the heating coil into the induction coil of the device set up on the cooking area assigned to this heating coil.
  • the heating coil is controlled in the standby mode by means of the hob control in such a way that a transmission of operating energy from the inductive hob to the set-up device, which is set up on the hob assigned to this heating coil, is made possible by means of the heating coil.
  • a particularly advantageous development of the inductive hob according to the invention provides that the inductive hob can be automatically transferred from the standby mode to the operating mode by means of the hob control and depending on a response signal received in the standby mode by means of the receiving unit.
  • the ease of use of the inductive hob according to the invention is further increased without the safety of operating the inductive hob being impaired.
  • an advantageous development of the method according to the invention provides that the inductive hob is controlled by means of the hob control and depending on the in The response signal received in the standby mode by means of the receiving unit is automatically transferred from the standby mode to the operating mode.
  • the wake-up signal for transferring the inductive hob from its standby mode to its standby mode can be freely selected within wide, suitable limits.
  • the wake-up signal can thus be generated by actuating a control element arranged on the set-up device and in signal transmission connection with the transmitting unit. In this way, the wake-up signal can be triggered, for example, using the set-up device.
  • a user could press a corresponding button on the setup device.
  • the wake-up signal is activated by means of a motion sensor arranged on the set-up device and in signal transmission connection with the transmitting unit and/or by actuation of a control element arranged on the inductive hob control and in signal transmission connection with the receiving unit of the hob control and/or by actuation of a is generated by a control element arranged on a third-party device and in signal transmission connection with the receiving unit of the hob control.
  • the wake-up signal can be triggered, for example, using the set-up device.
  • the alarm signal can be triggered using a third-party device, for example a smartphone.
  • the alarm signal can also be triggered by an operation on the inductive hob, for example by pressing a button on the inductive hob. Accordingly, there are a number of options for transferring the inductive hob from standby mode to standby mode.
  • the supply of electrical power to the heating coil can be freely selected depending on the type and mode of operation within wide, suitable limits.
  • a further advantageous development of the method according to the invention provides that the electrical power with which the hob control controls the heating coil in the standby mode has an average value of less than or equal to 30 W, preferably less than or equal to 15 W. This ensures that the electrical power supplied to the heating coil in the standby mode of the inductive hob is safe from a safety perspective.
  • the electrical power with which the hob control controls the heating coil in the standby mode has a pause-power ratio of greater than or equal to 1000:1.
  • the break i.e. the interruption of the electrical Power supply to the heating coil is 2 s
  • the time interval in which the electrical power is delivered to the heating coil is 160 ⁇ s.
  • the pause is therefore significantly longer than the time interval for power transmission.
  • a particularly advantageous development of the method according to the invention provides that in the standby mode, at least one set-up device is automatically assigned to at least one hotplate of the inductive hob with a plurality of hotplates each inductively heated by means of at least one heating coil. This makes it possible to determine during the standby mode whether a set-up device has been set up on a hotplate of the inductive hob or not. If the set-up device is set up on the hotplate, the inductive hob can then, for example, be automatically transferred from the standby mode to the operating mode, so that the set-up device can be effectively energized for a preparation process using this set-up device by means of the heating coil assigned to this hotplate. Otherwise, i.e. if there is no association between a set-up device and a hotplate of the inductive hob, the inductive hob remains in standby mode.
  • a further advantageous development of the method according to the invention according to claim 11 provides that the hob control controls the heating coils with an assignment signal and supplies the transmitting unit with operating energy at a voltage induced by at least one of the heating coils in the induction coil of the device set up on the cooking area assigned to this heating coil and the transmitting unit of the set-up device uses the operating energy to send a response signal that identifies the set-up device and correlates with the assignment signal induced into the induction coil of the set-up device by means of at least one of the heating coils assigned to this cooking place to the receiving unit of the hob control or a third-party device that is in signal transmission connection with the hob control and that Response signal in an evaluation unit of the hob control connected to the receiving unit for signal transmission or the third-party device with the assignment signal at least one heating coil of this hotplate is compared and, depending on this comparison, the identified set-up device is assigned to this hotplate.
  • the advantages that can be achieved with this development are, in particular, that, on the one hand, no energy source has to be provided on the set-up device for the transmitting unit of the at least one set-up device.
  • the energy required for the transmitter unit is generated from the voltage induced in the induction coil of the installation device.
  • the transmitting unit is supplied with operating energy at a voltage induced by at least one of the heating coils in the induction coil of the set-up device set up on the cooking zone assigned to this heating coil and is thereby controlled in such a way that the transmitting unit of the set-up device sends the response signal to the receiving unit using the operating energy.
  • the automatic assignment of the at least one set-up device to the at least one hotplate is realized in a simple manner by controlling the at least one heating coil of the hotplate on which the set-up device is set up with an assignment signal that simultaneously sends the device identifying the set-up device and to the by means of at least one of the heating coils assigned to this hotplate in the induction coil of the set-up device correlating response signal to the receiving unit of the hob control, which transmits signals to the evaluation unit, or to a third-party device connected to the hob control in a signal-transmitting manner.
  • one or more features of the respective assignment signal such as rising edges, falling edges, signal duration, maximums and/or minimums, trigger the response signal to be sent by means of the transmitting unit of the respective installation device. If there are several heating coils assigned to a hotplate, only one of these heating coils must be controlled with an assignment signal. Accordingly, the operating energy required for sending the response signal is generated by means of the voltage induced in the induction coil of the installation device and the sending process itself is triggered.
  • a faster automatic assignment of the at least one set-up device to the at least one hotplate of an inductively heated hob having a plurality of hotplates is made possible.
  • the response signal does not relate to a temperature measurement or the like, but rather correlates directly with the assignment signal.
  • the term “assignment signal” when controlling the heating coils of the hotplates as well as when inducing the induction coil of the at least one set-up device is to be understood in general terms. It can be accordingly the assignment signal is, for example, a performance profile.
  • the assignment signal can indicate that a predetermined limit value is exceeded or that the value falls below a predetermined limit value.
  • An interruption of the service as well as a reduction or an increase in the capacity are also conceivable.
  • more or less complex power profiles are also possible, for example, which have ramps and/or step functions and/or variable distances between power peaks/power dips and/or variable durations of power peaks/power dips.
  • an alternative advantageous development of the method according to the invention according to claim 11, which is alternative to the aforementioned embodiment, provides that the hob control controls the heating coils with at least one assignment signal and the measuring unit detects a vibration of the set-up device that correlates with the assignment signal induced in the induction coil and the transmitting unit detects a vibration that identifies the set-up device and sends a response signal correlating to the detected vibration of the set-up device to the receiving unit of the hob control or a third-party device in signal transmission connection with the hob control and the response signal is compared in an evaluation unit of the hob control or the third-party device connected to the receiving unit for signal transmission with the assignment signal of the at least one heating coil of this hotplate and depending on this comparison, the identified set-up device is assigned to this hotplate.
  • the advantage that can be achieved with this development of the method according to the invention is, in particular, that the automatic assignment of at least one set-up device to at least one hotplate of an inductive hob with a plurality of hotplates can also be done more quickly.
  • there is essentially no time delay in the automatic assignment due to properties of the at least one set-up device for example due to a temperature measurement on a set-up device designed as a pot that correlates to the induced power profile.
  • the response signal therefore does not relate to a temperature measurement or the like, but rather correlates more directly, namely without a significant time delay, with the assignment signal.
  • the term “vibration” here is synonymous with the terms “oscillation” or “shock”.
  • Vibrations that can be perceived by the human senses as well as those that cannot or only cannot be perceived by the human senses includes vibrations that are difficult to perceive.
  • the assignment signal is selected such that the vibration of the at least one set-up device is essentially not or only slightly perceptible to the human senses.
  • the measuring unit and the transmitting unit are controlled at a voltage induced by at least one of the heating coils in the induction coil of the set-up device set up on the cooking zone assigned to this heating coil in such a way that the measuring unit detects a vibration of the set-up device that correlates with the assignment signal induced in the induction coil of the set-up device and the transmitting unit of the installation device sends the response signal to the receiving unit.
  • the automatic assignment of the at least one set-up device to the at least one hotplate is thus realized in a simple manner by controlling the at least one heating coil of the hotplate on which the set-up device is set up, with an assignment signal, also measuring the vibration of the set-up device and sending it of the response signal identifying the set-up device and correlating to a vibration of the set-up device detected by the measuring unit of the set-up device is triggered to the receiving unit of the hob control that transmits signals to the evaluation unit or to a third-party device connected to the hob control in a signal-transmitting manner.
  • the respective assignment signal can be, for example, a performance profile.
  • the assignment signal can indicate that a predetermined limit value is exceeded or that the value falls below a predetermined limit value.
  • An interruption of the service as well as a reduction or an increase in the capacity are also conceivable.
  • more or less complex power profiles are also possible, for example, which have ramps and/or step functions and/or variable distances between power peaks/power dips and/or variable durations of power peaks/power dips.
  • the aforementioned statements regarding the power of an assignment signal designed as a power profile relate in an analogous manner to an assignment signal designed as a current or as a voltage.
  • the above statements are, analogous to above, merely exemplary and therefore not exhaustive.
  • the inductive hob is additionally operated in a demonstration mode by means of the hob control, the inductive hob being converted into the demonstration mode by means of a switching signal received from the receiving unit of the hob control, and the demonstration mode being essentially the same Standby mode corresponds, but an automatic transfer from demonstration mode to operating mode is not possible.
  • the functionality of the inductive hob in its standby mode for demonstration purposes, for example at trade fairs, without the risk of the inductive hob being switched to operating mode in an undesirable manner. Accordingly, safety is also fully guaranteed in the demonstration mode of the inductive hob.
  • a set-up device is, for example, a cooking container, a pot, a pan, a kettle, a roaster, a casserole dish, a cocotte, a cup, a bowl, a jug, a glass, a mug or a cooking device, an immersion heater, a heating target Mixer, a stirrer, or similar.
  • FIG. 1 an exemplary embodiment of the system 2 according to the invention for carrying out the method according to the invention is shown as an example and roughly schematically.
  • the system 2 has an inductively heated hob, i.e. an inductive hob 4, with a total of four cooking zones 6.
  • Each of the hotplates 6 is assigned a heating coil 8 for inductive heating of a set-up device placed on the respective hotplate 6 in a manner known to those skilled in the art.
  • the hob 4 has a hob control 10.
  • the inductive hob 4 is in a switch-off mode A.
  • the system 2 has a set-up device designed as a cooking pot 12.
  • the cooking pot 12 includes an induction coil 14 that can be inductively coupled to the heating coils 8 of the hob 4 and a transmitter unit 16.
  • the transmitter unit 16 is designed as a Bluetooth transmitter.
  • the inductive hob 4 thus comprises at least one hotplate 6, at least one heating coil 8 assigned to the hotplate 6 and a hob control 10 for controlling the heating coil 8 in an operating mode E of the inductive hob 2 for heating a set-up device 12 set up on the hotplate 6 with a transmitting unit 16
  • the hob control 10 is designed and set up in such a way that the inductive hob 4 can also be operated in a standby mode S, with the respective heating coil 8 not being able to be controlled in the standby mode S.
  • the hob control 10 is designed and set up in such a way that the inductive hob 4 can be operated in a standby mode B, the inductive hob 4 being able to be transferred from standby mode S to standby mode B by means of a wake-up signal received from a receiving unit 18 of the hob control 10 .
  • the respective heating coil 8 can be controlled in the standby mode B by means of the hob control 10 in such a way that, on the one hand, effective heating of the set-up device 12 for a preparation process is prevented and, on the other hand, signal transmission between the transmitting unit 16 and the receiving unit 18 by means of the heating coil 8 is made possible.
  • the heating coil 8 can be controlled in the standby mode B by means of the hob control 10 in such a way that a transfer of operating energy from the inductive hob 4 to the set-up device 12, which is on the hob 6 assigned to this heating coil 8 is set up, made possible by means of the heating coil 8.
  • the inductive hob 4 can be automatically transferred from the standby mode B to the operating mode E by means of the hob control 10 and depending on a response signal received in the standby mode B by means of the receiving unit 18.
  • the hob control 10 controls the individual heating coils 8 in the standby mode B of the inductive hob 4 with an individual assignment signal.
  • the respective assignment signals are designed as performance profiles.
  • the power profiles are not necessarily designed for heating the hotplates and thus for devices placed on the hotplates, but can also only be designed for the automatic assignment function.
  • the transmitting unit 16 designed as a Bluetooth transmitter is, as already explained above, supplied with the operating energy required for transmitting by means of a voltage induced in the induction coil 14.
  • the transmitting unit 16 is connected to the induction coil 14 to transmit energy.
  • the response signal sent by the transmitting unit 16 can be received by the receiving unit 18 of the hob control 10.
  • the response signal is in Fig. 1 symbolized by a lightning bolt symbol 20.
  • the response signal 20 received by the receiving unit 18 is by means of an evaluation unit 22 the hob control 10 is comparable to the performance profiles assigned to the individual heating coils 8.
  • FIG. 1 A diagram is shown in which the individual modes A, S, B and E of the inductive hob 4 are shown side by side.
  • FIG. 3 the method according to the invention is shown as an example using a time-signal diagram.
  • the method according to the invention basically works as follows: A user of the system 2, not shown, places the cooking pot 12 on the image plane of Fig. 1 The hotplate 6 of the hob 4 is located at the bottom right.
  • the user can use the inductive hob 4 of the system 2, for example by means of one from the prior art known operating intervention on the inductive hob 4, from the switch-off mode A directly into the operating mode E. See the Fig. 2 , top line.
  • the user can then carry out a preparation process, for example a cooking process, using the system 2 in a manner known to those skilled in the art.
  • the user can make a power setting L1 for the heating coil 8 on the inductive hob 4, for example by means of a number string Z1 displayed on the inductive hob 4, which is assigned to the hob 6 on which the user has set up the device 12 designed as a cooking pot.
  • the inductive hob 4 is in its standby mode S, i.e. in which the inductive hob 4 is not completely switched off, it is not technically possible to control the heating coils 8. To do this, the user would first have to transfer the inductive hob 4 to operating mode E, for example, in the manner explained above. Please refer Fig. 2 , middle row, top.
  • the inductive hob 4 of the system 2 is designed and set up to be automatically transferred from standby mode S to standby mode B. This requires a wake-up signal, which is received by the receiving unit 18 of the hob control 10. This wake-up signal can be generated in different ways.
  • the wake-up signal is activated by means of an actuation of a device arranged on the set-up device 12 and in signal transmission connection with the transmitting unit 16 Control element or by means of a motion sensor arranged on the set-up device 12 and in signal transmission connection with the transmitting unit 16 or by actuation of a control element arranged on the inductive hob 4 and in signal transmission connection with the receiving unit 18 of the hob control 10 or by actuation of a control element arranged on a third-party device and with the receiving unit 18 of the hob control 10 in signal transmission connection is generated.
  • the inductive hob 4 can be transferred from standby mode S to standby mode B in very different ways, which increases the ease of use of the system 2.
  • the control element of the set-up device 12, the motion sensor of the set-up device 12 designed as an acceleration sensor, the control element of the inductive hob 4 and the third-party device designed as a smartphone are not shown.
  • the wake-up signal is generated by actuating the control element of the set-up device 12 which is arranged on the set-up device 12 and is in signal transmission connection with the transmitting unit 16.
  • the user presses, for example, the control element of the set-up device 12, which is designed as a button, and places the set-up device 12 on the above-mentioned hotplate 6 of the inductive hob 4.
  • This keystroke is evaluated by the transmitting unit 16 of the set-up device 12 and converted into the wake-up signal.
  • the wake-up signal is then transmitted to the hob control 10 by means of the transmitting unit 16, the heating coil 8 and the receiving unit 18.
  • the hob control 10 then transfers the inductive hob 4 from standby mode S to standby mode B. See Fig. 2 , middle row, bottom.
  • the electrical power with which the hob control 10 controls the heating coil 8 in standby mode B has an average value of less than or equal to 30 W, preferably less than or equal to 15 W. Furthermore, the electrical power with which the hob control 10 controls the heating coil 8 in the standby mode B has a pause-power ratio of greater than or equal to 1000:1, namely an energization in a time interval of 160 ⁇ s compared to a pause interval of 2 s. On the one hand, this prevents effective heating of the set-up device 12 for a preparation process and, on the other hand, enables signal transmission between the transmitting unit 16 and the receiving unit 18 by means of the heating coil 8. Furthermore, a transfer of operating energy from the inductive hob 4 to the set-up device 12, which is set up on the cooking area 6 assigned to this heating coil 8, is made possible by means of the heating coil 8.
  • the hob control 10 automatically assigns it of the set-up device 12 to the above-mentioned hotplate 6 of the inductive hob 4, which is explained in more detail below:
  • the user of the system 2 has the hob 4 switched on and the set-up device 12, designed as a cooking pot, on the in the image plane of Fig. 1
  • the hotplate 6 of the hob 4 is placed at the bottom right, i.e. at the front right.
  • the hob control 10 controls the heating coils 8 of the individual hotplates 6 one after the other, i.e. successively, with their respective power profile.
  • This is in the Fig. 3 symbolized by the lines a, b, c and d, where the line a represents the control of the in the image plane of Fig. 1
  • the heating coil 8 corresponding to the hotplate 6 shown at the bottom left the line b the control of the heating coil 8 in the image plane of Fig. 1
  • the heating coil 8 corresponding to the hotplate 6 shown at the top right and the line d the control of the heating coil 8 in the image plane of Fig. 1
  • the heating coil 8 corresponding to the hotplate 6 shown at the top left is symbolized.
  • the cooking pot 12 Since on the in the image plane of Fig. 1 The cooking pot 12 is set up on the hotplate 6 shown at the bottom right, when the heating coil 8 assigned to this hotplate 6 is activated, a voltage is induced by this heating coil 8 in the induction coil 14 of the cooking pot 12. See line b in Fig. 3 . Due to the voltage induced in the induction coil 14, the transmitting unit 16 of the cooking pot 12, designed as a Bluetooth transmitter, is supplied with the operating energy required for transmission. In addition, the induced voltage simultaneously triggers transmission of the transmission unit 16, namely the transmission of the response signal 20. See Fig. 3 .
  • the response signal 20 includes, on the one hand, an identification that identifies the cooking pot 12 as precisely this individual cooking pot 12.
  • the response signal 20 includes at least one to which the heating coil 8 is located in the image plane Fig. 1
  • this size can be the performance profile as such.
  • this variable is at least one electrical and/or magnetic variable that characterizes the performance profile.
  • the response signal 20 is sent to the receiving unit 18 of the hob control 10.
  • the response signal 20 received by the receiving unit 18 is then transmitted in a manner known to those skilled in the art to the signal-transmitting signal connected to the receiving unit 18
  • Evaluation unit 22 of the hob control 10 is transmitted for evaluation.
  • the response signal 20 is, among other things, with the power profile of the in the image plane of Fig. 1 Cooking place 6 shown at the bottom right, on which the set-up device 12 designed as a cooking pot is placed, is compared to the heating coil 8 assigned to it, with which this heating coil 8 was controlled by means of the hob control 10.
  • the set-up device 12 Since the at least one variable correlating to this performance profile, which has been transmitted with the response signal 20 from the set-up device 12 to the hob control 10, corresponds to this performance profile, the set-up device 12 is in the image plane of Fig. 1
  • the hotplate 6 shown at the bottom right is automatically assigned to the hob control 10 by means of the evaluation unit 22.
  • the hob control 10 now knows that exactly this set-up device 12 is set up on this hotplate 6 and can, on this basis, control or regulate the cooking process, i.e. the preparation process, for this individual set-up device 12 by means of the control of the heating coil 8 assigned to this hotplate 6.
  • the response signal 20 is also combined in the evaluation unit 22 with the performance profiles of the remaining ones in the Fig.
  • the assignment of the installation device 12 was to that in the image plane of Fig. 1 hotplate 6 shown at the bottom right and thus to the heating coil 8 corresponding to this hotplate 6 successfully, so that the hob control 10 automatically transfers the inductive hob 4 of the system 2 from standby mode B to operating mode E.
  • the user can make a power setting L1 for this heating coil 8 on the inductive hob 4, for example using the number string Z1 mentioned above.
  • the controls Z2 of the set-up device 12 are not shown. The user can therefore adjust the power supplied to the aforementioned heating coil 8 directly on the inductive hob 4 and on the set-up device 12.
  • the hob control 10 automatically transfers the inductive hob 4 from the standby mode B back to the standby mode S, for example after a predetermined period of time stored in the hob control 10. See the Fig. 2 , middle row, bottom.
  • the individual heating coils 8 of the inductive hob 4 are activated with their respective power profile in standby mode B and in the operating mode E of the inductive hob 4, i.e. continuously depending on at least a predetermined time interval.
  • the inductive hob is additionally operated in a demonstration mode by means of the hob control, the inductive hob being converted into the demonstration mode by means of a switching signal received from the receiving unit of the hob control, and the demonstration mode essentially being the standby mode corresponds, but an automatic transfer from the demonstration mode to the operating mode does not is possible.
  • the inductive hob in its standby mode for demonstration purposes, for example at trade fairs, without the risk of the inductive hob being switched to operating mode in an undesirable manner. Accordingly, safety is also fully guaranteed in the demonstration mode of the inductive hob.
  • An alternative embodiment to the exemplary embodiment of the automatic assignment of at least one set-up device to at least one hotplate of the inductive hob provides, for example, that the hob control controls the heating coils with at least one assignment signal and the measuring unit detects and correlates a vibration of the set-up device with the assignment signal induced in the induction coil the transmitting unit sends a response signal identifying the set-up device and correlating to the detected vibration of the set-up device to the receiving unit of the hob control or a third-party device in signal transmission connection with the hob control and the response signal in an evaluation unit of the hob control or the third-party device connected to the receiving unit for signal transmission with the assignment signal at least one heating coil of this hotplate is compared and, depending on this comparison, the identified set-up device is assigned to this hotplate. See also the subsequently published German patent application DE 10 2018 119 969.4 the applicant.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Electric Stoves And Ranges (AREA)

Description

Die Erfindung betrifft ein System der im Oberbegriff des Patentanspruchs 1 genannten Art und ein Verfahren der im Oberbegriff des Patentanspruchs 5 genannten Art.The invention relates to a system of the type mentioned in the preamble of patent claim 1 and a method of the type mentioned in the preamble of patent claim 5.

Derartige Systeme und Verfahren sind aus dem Stand der Technik bereits in einer Vielzahl von Ausführungsformen bekannt.Such systems and methods are already known in a variety of embodiments from the prior art.

Gatungsgemäß ist das Dokument DE 2017 112 945 B3 bekannt.The document is appropriate DE 2017 112 945 B3 known.

Beispielsweise ist aus dem Dokument EP 3 001 771 B1 ein Verfahren zur Detektion der Identität eines Topfes auf einer Kochstelle eines Kochfelds und ein System eines Kochfelds mit einem Topf bekannt. Das Kochfeld weist ein Topfsensormittel auf, mittels dem das Vorhandensein eines Topfes auf der Kochstelle detektiert werden soll. Der Topf weist einen Temperatursensor und einen Sender auf, wobei der Sender mindestens zwei Datensätze an einen Empfänger einer Kochfeldsteuerung übertragen soll. Der erste Datensatz soll eine Identifizierungseinrichtung für einen einzelnen Topf darstellen, während der zweite Datensatz den mittels des Temperatursensors gemessenen Temperaturzustand des Topfes betreffen soll. Wenn das Topfsensormittel das Vorhandensein eines beliebigen Topfes detektiert hat, soll mittels einer Leistungsprofilvorlage ein Heizelement aktiviert werden, um eine Temperaturveränderung im auf der Kochstelle aufgestellten Topf zu bewirken. Aufgrund der thermischen Kapazität des Topfes liegt dabei immer eine Verzögerung der Temperaturveränderung zu der Leistungsprofilvorlage vor. Mittels der an die Kochfeldsteuerung zurückgesendeten Temperaturinformationen soll dann bestimmt werden, ob das vom Temperatursensor am Topf detektierte Temperaturprofil zu der vom Heizelement erzeugten Vorlage des Leistungsprofils korrespondiert. Falls Temperaturprofil und Leistungsprofilvorlage zueinander korrespondieren, soll der Topf mit der Topfidentifikationseinrichtung als auf diese Kochstelle aufgestellt erkannt werden.For example, from the document EP 3 001 771 B1 a method for detecting the identity of a pot on a hotplate of a hob and a system of a hob with a pot are known. The hob has a pot sensor means by which the presence of a pot on the hob is to be detected. The pot has a temperature sensor and a transmitter, whereby the transmitter is intended to transmit at least two data sets to a receiver of a hob control. The first data set should represent an identification device for an individual pot, while the second data set should concern the temperature state of the pot measured by the temperature sensor. If the pot sensor means has detected the presence of any pot, a heating element should be activated using a power profile template in order to bring about a temperature change in the pot placed on the hotplate. Due to the thermal capacity of the pot, there is always a delay in the temperature change compared to the power profile template. The temperature information sent back to the hob control should then be used to determine whether the temperature profile detected by the temperature sensor on the pot corresponds to the template of the power profile generated by the heating element. If the temperature profile and the performance profile template correspond to one another, the pot should be recognized as being placed on this hotplate using the pot identification device.

Der Erfindung stellt sich somit das Problem, einen Zubereitungsvorgang auf einem induktiven Kochfeld zu verbessern.The invention therefore faces the problem of improving a preparation process on an inductive hob.

Dieses Problem wird durch ein System mit den Merkmalen des Patentanspruchs 1 gelöst. Ferner wird dieses Problem durch ein Verfahren zum Betrieb dieses Systems mit den Merkmalen des Patentanspruchs 5 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.This problem is solved by a system with the features of patent claim 1. Furthermore, this problem is solved by a method for operating this system with the features of patent claim 5. Advantageous refinements and further developments of the invention result from the dependent claims.

Der mit der Erfindung erreichbare Vorteil besteht insbesondere darin, dass ein Zubereitungsvorgang auf einem induktiven Kochfeld verbessert ist. Aufgrund des Auslösens des Wecksignals mittels eines Bewegungssensors am Aufstellgerät und/oder einem Bedienelement an dem Kochfeld und/oder einem Bedienelement an einem Drittgerät ist die Bedienung des induktiven Kochfelds und damit der Zubereitungsvorgang auf dem induktiven Kochfeld wesentlich vereinfacht, ohne dabei die Sicherheit zu beeinträchtigen. Entsprechend sind das erfindungsgemäße System und das erfindungsgemäße Verfahren auch normgerecht und damit nach heutigen Sicherheitsanforderungen bei induktiven Kochfeldern zulassungsfähig.The advantage that can be achieved with the invention is, in particular, that a preparation process on an inductive hob is improved. Due to the triggering of the wake-up signal by means of a motion sensor on the set-up device and/or a control element on the hob and/or a control element on a third-party device, the operation of the inductive hob and thus the preparation process on the inductive hob is significantly simplified without compromising safety. Accordingly, the system according to the invention and the method according to the invention also conform to standards and can therefore be approved for inductive hobs in accordance with today's safety requirements.

Eine vorteilhafte Weiterbildung des induktiven Kochfelds sieht vor, dass die Heizspule in dem Bereitschaftsmodus mittels der Kochfeldsteuerung derart ansteuerbar ist, dass eine Übertragung einer Betriebsenergie von dem induktiven Kochfeld zu dem Aufstellgerät, das auf der dieser Heizspule zugeordneten Kochstelle aufgestellt ist, mittels der Heizspule ermöglicht ist. Auf diese Weise ist es möglich, das Aufstellgerät mittels des induktiven Kochfelds mit der für den Betrieb des Aufstellgeräts erforderlichen Betriebsenergie zu versorgen. Entsprechend benötigt das Aufstellgerät keine oder lediglich eine sehr kleine und damit platzsparende Energiequelle.An advantageous development of the inductive hob provides that the heating coil can be controlled in the standby mode by means of the hob control in such a way that a transfer of operating energy from the inductive hob to the set-up device, which is set up on the cooking area assigned to this heating coil, is made possible by means of the heating coil . In this way, it is possible to supply the set-up device with the operating energy required to operate the set-up device using the inductive hob. Accordingly, the set-up device requires no or only a very small and therefore space-saving energy source.

Entsprechend sieht eine vorteilhafte Weiterbildung des erfindungsgemäßen Systems sieht vor, dass die Sendeeinheit oder die Sendeeinheit und die Messeinheit bei einer mittels der Heizspule in die Induktionsspule des auf der dieser Heizspule zugeordneten Kochstelle aufgestellten Aufstellgeräts induzierten Spannung mit einer Betriebsenergie versorgbar ist/sind.Accordingly, an advantageous development of the system according to the invention provides that the transmitting unit or the transmitting unit and the measuring unit can be supplied with operating energy at a voltage induced by means of the heating coil into the induction coil of the device set up on the cooking area assigned to this heating coil.

Gleiches gilt für das erfindungsgemäße Verfahren, bei dem eine vorteilhafte Weiterbildung vorsieht, dass die Heizspule in dem Bereitschaftsmodus mittels der Kochfeldsteuerung derart angesteuert wird, dass eine Übertragung einer Betriebsenergie von dem induktiven Kochfeld zu dem Aufstellgerät, das auf der dieser Heizspule zugeordneten Kochstelle aufgestellt ist, mittels der Heizspule ermöglicht ist.The same applies to the method according to the invention, in which an advantageous development provides that the heating coil is controlled in the standby mode by means of the hob control in such a way that a transmission of operating energy from the inductive hob to the set-up device, which is set up on the hob assigned to this heating coil, is made possible by means of the heating coil.

Eine besonders vorteilhafte Weiterbildung des erfindungsgemäßen induktiven Kochfelds sieht vor, dass das induktive Kochfeld mittels der Kochfeldsteuerung und in Abhängigkeit von einem in dem Bereitschaftsmodus mittels der Empfangseinheit empfangenen Antwortsignal automatisch von dem Bereitschaftsmodus in den Betriebsmodus überführbar ist. Hierdurch ist der Bedienkomfort bei dem erfindungsgemäßen induktiven Kochfeld weiter gesteigert, ohne dass die Sicherheit bei der Bedienung des induktiven Kochfelds beeinträchtigt ist.A particularly advantageous development of the inductive hob according to the invention provides that the inductive hob can be automatically transferred from the standby mode to the operating mode by means of the hob control and depending on a response signal received in the standby mode by means of the receiving unit. As a result, the ease of use of the inductive hob according to the invention is further increased without the safety of operating the inductive hob being impaired.

Entsprechend sieht eine vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens vor, dass das induktive Kochfeld mittels der Kochfeldsteuerung und in Abhängigkeit von dem in dem Bereitschaftsmodus mittels der Empfangseinheit empfangenen Antwortsignal automatisch von dem Bereitschaftsmodus in den Betriebsmodus überführt wird.Accordingly, an advantageous development of the method according to the invention provides that the inductive hob is controlled by means of the hob control and depending on the in The response signal received in the standby mode by means of the receiving unit is automatically transferred from the standby mode to the operating mode.

Grundsätzlich ist das Wecksignal zur Überführung des induktiven Kochfelds von dessen Standby-Modus in dessen Bereitschaftsmodus in weiten geeigneten Grenzen frei wählbar. So kann das Wecksignal mittels einer Betätigung eines an dem Aufstellgerät angeordneten und mit der Sendeeinheit in Signalübertragungsverbindung stehenden Bedienelements erzeugt werden. Auf diese Weise ist das Wecksignal beispielsweise mittels des Aufstellgeräts auslösbar. Ein Benutzer könnte eine entsprechende Taste des Aufstellgeräts drücken.In principle, the wake-up signal for transferring the inductive hob from its standby mode to its standby mode can be freely selected within wide, suitable limits. The wake-up signal can thus be generated by actuating a control element arranged on the set-up device and in signal transmission connection with the transmitting unit. In this way, the wake-up signal can be triggered, for example, using the set-up device. A user could press a corresponding button on the setup device.

Erfindungsgemäß ist vorgesehen, dass das Wecksignal mittels eines an dem Aufstellgerät angeordneten und mit der Sendeeinheit in Signalübertragungsverbindung stehenden Bewegungssensors und/oder mittels einer Betätigung eines an dem induktiven Kochfeld angeordneten und mit der Empfangseinheit der Kochfeldsteuerung in Signalübertragungsverbindung stehenden Bedienelements und/oder mittels einer Betätigung eines an einem Drittgerät angeordneten und mit der Empfangseinheit der Kochfeldsteuerung in Signalübertragungsverbindung stehenden Bedienelements erzeugt wird. Auf diese Weise ist das Wecksignal beispielsweise mittels des Aufstellgeräts auslösbar.According to the invention, it is provided that the wake-up signal is activated by means of a motion sensor arranged on the set-up device and in signal transmission connection with the transmitting unit and/or by actuation of a control element arranged on the inductive hob control and in signal transmission connection with the receiving unit of the hob control and/or by actuation of a is generated by a control element arranged on a third-party device and in signal transmission connection with the receiving unit of the hob control. In this way, the wake-up signal can be triggered, for example, using the set-up device.

Denkbar ist auch, dass eine, beispielsweise mittels eines als Beschleunigungssensor ausgebildeten Bewegungssensors, detektierte Bewegung des Aufstellgeräts dazu verwendet wird, um das Wecksignal auszulösen. Darüber hinaus ist es möglich, dass das Wecksignal auch mittels eines Drittgeräts, beispielsweise mittels eines Smartphones, ausgelöst wird. Ferner ist auch das Auslösen des Wecksignals mittels einer Betätigung am induktiven Kochfeld, beispielsweise einer Betätigung einer Taste des induktiven Kochfelds, auslösbar. Entsprechend ergibt sich eine Vielzahl von Möglichkeiten, um das induktive Kochfeld von dessen Standby-Modus in den Bereitschaftsmodus zu überführen.It is also conceivable that a movement of the set-up device detected, for example by means of a motion sensor designed as an acceleration sensor, is used to trigger the wake-up signal. In addition, it is possible for the alarm signal to be triggered using a third-party device, for example a smartphone. Furthermore, the alarm signal can also be triggered by an operation on the inductive hob, for example by pressing a button on the inductive hob. Accordingly, there are a number of options for transferring the inductive hob from standby mode to standby mode.

Grundsätzlich ist die Versorgung der Heizspule mit elektrischer Leistung nach Art und Funktionsweise in weiten geeigneten Grenzen frei wählbar. Eine weitere vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass die elektrische Leistung, mit der die Kochfeldsteuerung die Heizspule in dem Bereitschaftsmodus ansteuert, einen Mittelwert von kleiner oder gleich 30 W, bevorzugt kleiner oder gleich 15 W, aufweist. Hierdurch ist gewährleistet, dass die der Heizspule in dem Bereitschaftsmodus des induktiven Kochfelds zugeführte elektrische Leistung sicherheitstechnisch unbedenklich ist.In principle, the supply of electrical power to the heating coil can be freely selected depending on the type and mode of operation within wide, suitable limits. A further advantageous development of the method according to the invention provides that the electrical power with which the hob control controls the heating coil in the standby mode has an average value of less than or equal to 30 W, preferably less than or equal to 15 W. This ensures that the electrical power supplied to the heating coil in the standby mode of the inductive hob is safe from a safety perspective.

Eine andere vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass die elektrische Leistung, mit der die Kochfeldsteuerung die Heizspule in dem Bereitschaftsmodus ansteuert, ein Pausen-Leistungs-Verhältnis von größer oder gleich 1000:1 aufweist. Beispielsweise könnte die Pause, also die Unterbrechung der elektrischen Leistungszufuhr zu der Heizspule, 2 s betragen, während das Zeitintervall, in dem die elektrische Leistung an die Heizspule abgegeben wird, 160 µs beträgt. Die Pause ist also wesentlich länger als das Zeitintervall für die Leistungsübertragung. Auf diese Weise ist alternativ oder zusätzlich zu der vorgenannten Ausführungsform gewährleistet, dass die der Heizspule in dem Bereitschaftsmodus des induktiven Kochfelds zugeführte elektrische Leistung sicherheitstechnisch unbedenklich ist.Another advantageous development of the method according to the invention provides that the electrical power with which the hob control controls the heating coil in the standby mode has a pause-power ratio of greater than or equal to 1000:1. For example, the break, i.e. the interruption of the electrical Power supply to the heating coil is 2 s, while the time interval in which the electrical power is delivered to the heating coil is 160 µs. The pause is therefore significantly longer than the time interval for power transmission. In this way, as an alternative or in addition to the aforementioned embodiment, it is ensured that the electrical power supplied to the heating coil in the standby mode of the inductive hob is safe from a safety perspective.

Eine besonders vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass in dem Bereitschaftsmodus eine automatische Zuordnung mindestens eines Aufstellgeräts zu mindestens einer Kochstelle des induktiven Kochfelds mit einer Mehrzahl von mittels jeweils mindestens einer Heizspule induktiv beheizten Kochstellen erfolgt. Hierdurch ist es möglich, während des Bereitschaftsmodus festzustellen, ob ein Aufstellgerät auf einer Kochstelle des induktiven Kochfelds aufgestellt worden ist oder nicht. Sofern das Aufstellgerät auf der Kochstelle aufgestellt ist, kann dann beispielsweise das induktive Kochfeld automatisch von dem Bereitschaftsmodus in den Betriebsmodus überführt werden, so dass das Aufstellgerät mittels der dieser Kochstelle zugeordneten Heizspule wirksam für einen Zubereitungsvorgang mittels dieses Aufstellgeräts bestromt werden kann. Anderenfalls, also wenn keine Zuordnung zwischen einem Aufstellgerät und einer Kochstelle des induktiven Kochfelds erfolgt, verbleibt das induktive Kochfeld in dem Bereitschaftsmodus.A particularly advantageous development of the method according to the invention provides that in the standby mode, at least one set-up device is automatically assigned to at least one hotplate of the inductive hob with a plurality of hotplates each inductively heated by means of at least one heating coil. This makes it possible to determine during the standby mode whether a set-up device has been set up on a hotplate of the inductive hob or not. If the set-up device is set up on the hotplate, the inductive hob can then, for example, be automatically transferred from the standby mode to the operating mode, so that the set-up device can be effectively energized for a preparation process using this set-up device by means of the heating coil assigned to this hotplate. Otherwise, i.e. if there is no association between a set-up device and a hotplate of the inductive hob, the inductive hob remains in standby mode.

Für die automatische Zuordnung mindestens eines Aufstellgeräts zu mindestens einer Kochstelle des induktiven Kochfelds sind grundsätzlich eine Vielzahl von voneinander verschiedenen Verfahren denkbar.In principle, a large number of different methods are conceivable for the automatic assignment of at least one set-up device to at least one hotplate of the inductive hob.

Beispielsweise sei hier auf die DE 2017 112 945 B3 sowie die nachveröffentlichte deutsche Patentanmeldung DE 10 2018 119 953.8 der Anmelderin verwiesen, deren Offenbarungsgehalt jeweils vollumfänglich in die vorliegende Anmeldung inkorporiert ist.For example, here is the DE 2017 112 945 B3 as well as the subsequently published German patent application DE 10 2018 119 953.8 of the applicant, the disclosure content of which is fully incorporated into the present application.

Eine weitere vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens nach Anspruch 11 sieht vor, dass die Kochfeldsteuerung die Heizspulen mit einem Zuordnungssignal ansteuert und die Sendeeinheit bei einer mittels mindestens einer der Heizspulen in die Induktionsspule des auf der dieser Heizspule zugeordneten Kochstelle aufgestellten Aufstellgeräts induzierten Spannung mit einer Betriebsenergie versorgt wird und die Sendeeinheit des Aufstellgeräts mittels der Betriebsenergie ein das Aufstellgerät identifizierendes und zu dem mittels mindestens einer der dieser Kochstelle zugeordneten Heizspulen in die Induktionsspule des Aufstellgeräts induzierten Zuordnungssignal korrelierendes Antwortsignal an die Empfangseinheit der Kochfeldsteuerung oder eines mit der Kochfeldsteuerung in Signalübertragungsverbindung stehenden Drittgeräts sendet und das Antwortsignal in einer mit der Empfangseinheit signalübertragend verbundenen Auswerteeinheit der Kochfeldsteuerung oder dem Drittgerät mit dem Zuordnungssignal der mindestens einen Heizspule dieser Kochstelle verglichen wird und in Abhängigkeit dieses Vergleichs das identifizierte Aufstellgerät dieser Kochstelle zugeordnet wird. Die mit dieser Weiterbildung erreichbaren Vorteile bestehen insbesondere darin, dass zum einen für die Sendeeinheit des mindestens einen Aufstellgeräts keine Energiequelle an dem Aufstellgerät vorgesehen sein muss. Die für die Sendeeinheit erforderliche Energie wird aus der in die Induktionsspule des Aufstellgeräts induzierten Spannung generiert. Bevorzugt wird die Sendeeinheit bei einer mittels mindestens einer der Heizspulen in die Induktionsspule des auf der dieser Heizspule zugeordneten Kochstelle aufgestellten Aufstellgeräts induzierten Spannung mit einer Betriebsenergie versorgt und dadurch derart angesteuert, dass die Sendeeinheit des Aufstellgeräts mittels der Betriebsenergie das Antwortsignal an die Empfangseinheit sendet. Somit wird die automatische Zuordnung des mindestens einen Aufstellgeräts zu der mindestens einen Kochstelle auf einfache Weise realisiert, in dem die Ansteuerung der mindestens einen Heizspule der Kochstelle, auf der das Aufstellgerät aufgestellt ist, mit einem Zuordnungssignal gleichzeitig das Senden des das Aufstellgerät identifizierenden und zu dem mittels mindestens einer der dieser Kochstelle zugeordneten Heizspulen in die Induktionsspule des Aufstellgeräts induzierten Zuordnungssignal korrelierenden Antwortsignals an die mit der Auswerteeinheit signalübertragende Empfangseinheit der Kochfeldsteuerung oder eines mit der Kochfeldsteuerung signalübertragend verbundenen Drittgeräts auslöst. Denkbar ist beispielsweise, dass eines oder mehrere Merkmale des jeweiligen Zuordnungssignals, wie beispielsweise ansteigende Flanken, abfallende Flanken, Signaldauer, Maxima und/oder Minima, ein Senden des Antwortsignals mittels der Sendeeinheit des jeweiligen Aufstellgeräts auslösen. Bei mehreren einer Kochstelle zugeordneten Heizspulen ist lediglich die Ansteuerung einer dieser Heizspulen mit einem Zuordnungssignal erforderlich. Entsprechend werden mittels der in die Induktionsspule des Aufstellgeräts induzierten Spannung die für das Senden des Antwortsignals erforderliche Betriebsenergie erzeugt wie auch der Sendevorgang selbst ausgelöst. Darüber hinaus ist durch das Senden eines zu dem in die Induktionsspule des Aufstellgeräts induzierten Zuordnungssignals, beispielsweise eines Leistungsprofils, korrelierenden Antwortsignals eine schnellere automatische Zuordnung des mindestens einen Aufstellgeräts zu der mindestens einen Kochstelle eines eine Mehrzahl von Kochstellen aufweisenden induktiv beheizten Kochfelds ermöglicht. Es ergibt sich im Wesentlichen keine zeitliche Verzögerung bei der automatischen Zuordnung aufgrund von Eigenschaften des mindestens einen Aufstellgeräts, beispielsweise aufgrund von einer zu dem induzierten Leistungsprofil korrelierenden Temperaturmessung an einem als Topf ausgebildeten Aufstellgerät. Das Antwortsignal betrifft also nicht eine Temperaturmessung oder dergleichen, sondern korreliert direkt mit dem Zuordnungssignal. Der Ausdruck "Zuordnungssignal" bei der Ansteuerung der Heizspulen der Kochstellen wie auch bei der Induktion der Induktionsspule des mindestens einen Aufstellgeräts ist allgemein zu verstehen. Entsprechend kann es sich bei dem Zuordnungssignal beispielsweise um ein Leistungsprofil handeln. Das Zuordnungssignal kann ein Überschreiten eines vorher festgelegten Grenzwertes oder ein Unterschreiten eines vorher festgelegten Grenzwertes aufweisen. Denkbar sind auch eine Unterbrechung der Leistung sowie ein Herabsetzen oder eine Erhöhung der Leistung. Darüber hinaus sind beispielsweise auch mehr oder weniger komplexe Leistungsprofile möglich, die Rampen und/oder Stufenfunktionen und/oder variable Abstände von Leistungsspitzen/Leistungssenken und/oder variable Dauern von Leistungsspitzen/Leistungssenken aufweisen. Die vorgenannten Ausführungen bezüglich der Leistung eines als Leistungsprofil ausgebildeten Zuordnungssignals beziehen sich in analoger Weise auf ein als ein Strom oder als eine Spannung ausgebildetes Zuordnungssignal. Die vorgenannten Ausführungen sind lediglich exemplarisch und damit nicht erschöpfend. Ferner wird hier auf die nachveröffentlichte deutsche Patentanmeldung DE 10 2018 119 965.1 der Anmelderin verwiesen, deren Offenbarungsgehalt vollumfänglich in die vorliegende Anmeldung inkorporiert ist.A further advantageous development of the method according to the invention according to claim 11 provides that the hob control controls the heating coils with an assignment signal and supplies the transmitting unit with operating energy at a voltage induced by at least one of the heating coils in the induction coil of the device set up on the cooking area assigned to this heating coil and the transmitting unit of the set-up device uses the operating energy to send a response signal that identifies the set-up device and correlates with the assignment signal induced into the induction coil of the set-up device by means of at least one of the heating coils assigned to this cooking place to the receiving unit of the hob control or a third-party device that is in signal transmission connection with the hob control and that Response signal in an evaluation unit of the hob control connected to the receiving unit for signal transmission or the third-party device with the assignment signal at least one heating coil of this hotplate is compared and, depending on this comparison, the identified set-up device is assigned to this hotplate. The advantages that can be achieved with this development are, in particular, that, on the one hand, no energy source has to be provided on the set-up device for the transmitting unit of the at least one set-up device. The energy required for the transmitter unit is generated from the voltage induced in the induction coil of the installation device. Preferably, the transmitting unit is supplied with operating energy at a voltage induced by at least one of the heating coils in the induction coil of the set-up device set up on the cooking zone assigned to this heating coil and is thereby controlled in such a way that the transmitting unit of the set-up device sends the response signal to the receiving unit using the operating energy. Thus, the automatic assignment of the at least one set-up device to the at least one hotplate is realized in a simple manner by controlling the at least one heating coil of the hotplate on which the set-up device is set up with an assignment signal that simultaneously sends the device identifying the set-up device and to the by means of at least one of the heating coils assigned to this hotplate in the induction coil of the set-up device correlating response signal to the receiving unit of the hob control, which transmits signals to the evaluation unit, or to a third-party device connected to the hob control in a signal-transmitting manner. It is conceivable, for example, that one or more features of the respective assignment signal, such as rising edges, falling edges, signal duration, maximums and/or minimums, trigger the response signal to be sent by means of the transmitting unit of the respective installation device. If there are several heating coils assigned to a hotplate, only one of these heating coils must be controlled with an assignment signal. Accordingly, the operating energy required for sending the response signal is generated by means of the voltage induced in the induction coil of the installation device and the sending process itself is triggered. In addition, by sending a response signal that correlates to the assignment signal induced in the induction coil of the set-up device, for example a power profile, a faster automatic assignment of the at least one set-up device to the at least one hotplate of an inductively heated hob having a plurality of hotplates is made possible. There is essentially no time delay in the automatic assignment due to properties of the at least one set-up device, for example due to a temperature measurement on a set-up device designed as a pot that correlates to the induced power profile. The response signal does not relate to a temperature measurement or the like, but rather correlates directly with the assignment signal. The term “assignment signal” when controlling the heating coils of the hotplates as well as when inducing the induction coil of the at least one set-up device is to be understood in general terms. It can be accordingly the assignment signal is, for example, a performance profile. The assignment signal can indicate that a predetermined limit value is exceeded or that the value falls below a predetermined limit value. An interruption of the service as well as a reduction or an increase in the capacity are also conceivable. In addition, more or less complex power profiles are also possible, for example, which have ramps and/or step functions and/or variable distances between power peaks/power dips and/or variable durations of power peaks/power dips. The aforementioned statements regarding the power of an assignment signal designed as a power profile relate in an analogous manner to an assignment signal designed as a current or as a voltage. The above statements are merely exemplary and therefore not exhaustive. Furthermore, reference is made here to the subsequently published German patent application DE 10 2018 119 965.1 of the applicant, the disclosure content of which is fully incorporated into the present application.

Eine zu der vorgenannten Ausführungsform alternative vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens nach Anspruch 11 sieht vor, dass die Kochfeldsteuerung die Heizspulen mit mindestens einem Zuordnungssignal ansteuert und die Messeinheit eine zu dem in die Induktionsspule induzierten Zuordnungssignal korrelierende Vibration des Aufstellgeräts detektiert und die Sendeeinheit ein das Aufstellgerät identifizierendes und zu der detektierten Vibration des Aufstellgeräts korrelierendes Antwortsignal an die Empfangseinheit der Kochfeldsteuerung oder eines mit der Kochfeldsteuerung in Signalübertragungsverbindung stehenden Drittgeräts sendet und das Antwortsignal in einer mit der Empfangseinheit signalübertragend verbundenen Auswerteeinheit der Kochfeldsteuerung oder dem Drittgerät mit dem Zuordnungssignal der mindestens einen Heizspule dieser Kochstelle verglichen wird und in Abhängigkeit dieses Vergleichs das identifizierte Aufstellgerät dieser Kochstelle zugeordnet wird. Der mit dieser Weiterbildung des erfindungsgemäßen Verfahrens erreichbare Vorteil besteht insbesondere darin, dass die automatische Zuordnung mindestens eines Aufstellgeräts zu mindestens einer Kochstelle eines induktiven Kochfelds mit einer Mehrzahl von Kochstellen ebenfalls schneller erfolgen kann. Wie bei der vorgenannten Ausführungsform des erfindungsgemäßen Verfahrens ergibt sich im Wesentlichen keine zeitliche Verzögerung bei der automatischen Zuordnung aufgrund von Eigenschaften des mindestens einen Aufstellgeräts, beispielsweise aufgrund von einer zu dem induzierten Leistungsprofil korrelierenden Temperaturmessung an einem als Topf ausgebildeten Aufstellgerät. Das Antwortsignal betrifft also nicht eine Temperaturmessung oder dergleichen, sondern korreliert direkter, nämlich ohne eine wesentliche zeitliche Verzögerung, mit dem Zuordnungssignal. Der Begriff "Vibration" ist hier gleichbedeutend mit den Begriffen "Schwingung" oder "Erschütterung". Dabei sind sowohl mit den menschlichen Sinnen wahrnehmbare Vibrationen wie auch mit den menschlichen Sinnen nicht oder nur schwer wahrnehmbare Vibrationen umfasst. Bevorzugterweise ist das Zuordnungssignal derart gewählt, dass die Vibration des mindestens einen Aufstellgeräts im Wesentlichen durch die menschlichen Sinne nicht oder nur gering wahrnehmbar ist. Bevorzugt wird die Messeinheit und die Sendeeinheit bei einer mittels mindestens einer der Heizspulen in die Induktionsspule des auf der dieser Heizspule zugeordneten Kochstelle aufgestellten Aufstellgeräts induzierten Spannung derart angesteuert, dass die Messeinheit eine zu dem in die Induktionsspule des Aufstellgeräts induzierten Zuordnungssignal korrelierende Vibration des Aufstellgeräts detektiert und die Sendeeinheit des Aufstellgeräts das Antwortsignal an die Empfangseinheit sendet. Somit wird die automatische Zuordnung des mindestens einen Aufstellgeräts zu der mindestens einen Kochstelle auf einfache Weise realisiert, in dem die Ansteuerung der mindestens einen Heizspule der Kochstelle, auf der das Aufstellgerät aufgestellt ist, mit einem Zuordnungssignal auch das Messen der Vibration des Aufstellgeräts und das Senden des das Aufstellgerät identifizierenden und zu einer mittels der Messeinheit des Aufstellgeräts detektierten Vibration des Aufstellgeräts korrelierenden Antwortsignals an die mit der Auswerteeinheit signalübertragende Empfangseinheit der Kochfeldsteuerung oder eines mit der Kochfeldsteuerung signalübertragend verbundenen Drittgeräts auslöst. Denkbar ist beispielsweise, dass eines oder mehrere Merkmale des jeweiligen Zuordnungssignals, wie beispielsweise ansteigende Flanken, abfallende Flanken, Signaldauer, Maxima und/oder Minima, das Messen der Vibration des Aufstellgeräts mittels der Messeinheit und das Senden des Antwortsignals mittels der Sendeeinheit des jeweiligen Aufstellgeräts auslösen. Bei mehreren einer Kochstelle zugeordneten Heizspulen ist lediglich die Ansteuerung einer dieser Heizspulen mit einem Zuordnungssignal erforderlich. Analog zu oben ist der Ausdruck "Zuordnungssignal" bei der Ansteuerung der Heizspulen der Kochstellen wie auch bei der Induktion der Induktionsspule des mindestens einen Aufstellgeräts allgemein zu verstehen. Entsprechend kann es sich bei dem Zuordnungssignal beispielsweise um ein Leistungsprofil handeln. Das Zuordnungssignal kann ein Überschreiten eines vorher festgelegten Grenzwertes oder ein Unterschreiten eines vorher festgelegten Grenzwertes aufweisen. Denkbar sind auch eine Unterbrechung der Leistung sowie ein Herabsetzen oder eine Erhöhung der Leistung. Darüber hinaus sind beispielsweise auch mehr oder weniger komplexe Leistungsprofile möglich, die Rampen und/oder Stufenfunktionen und/oder variable Abstände von Leistungsspitzen/Leistungssenken und/oder variable Dauern von Leistungsspitzen/Leistungssenken aufweisen. Die vorgenannten Ausführungen bezüglich der Leistung eines als Leistungsprofil ausgebildeten Zuordnungssignals beziehen sich in analoger Weise auf ein als ein Strom oder als eine Spannung ausgebildetes Zuordnungssignal. Die vorgenannten Ausführungen sind, analog zu oben, lediglich exemplarisch und damit nicht erschöpfend. Ferner wird hier auf die nachveröffentlichte deutsche Patentanmeldung DE 10 2018 119 969.4 der Anmelderin verwiesen, deren Offenbarungsgehalt vollumfänglich in die vorliegende Anmeldung inkorporiert ist.An alternative advantageous development of the method according to the invention according to claim 11, which is alternative to the aforementioned embodiment, provides that the hob control controls the heating coils with at least one assignment signal and the measuring unit detects a vibration of the set-up device that correlates with the assignment signal induced in the induction coil and the transmitting unit detects a vibration that identifies the set-up device and sends a response signal correlating to the detected vibration of the set-up device to the receiving unit of the hob control or a third-party device in signal transmission connection with the hob control and the response signal is compared in an evaluation unit of the hob control or the third-party device connected to the receiving unit for signal transmission with the assignment signal of the at least one heating coil of this hotplate and depending on this comparison, the identified set-up device is assigned to this hotplate. The advantage that can be achieved with this development of the method according to the invention is, in particular, that the automatic assignment of at least one set-up device to at least one hotplate of an inductive hob with a plurality of hotplates can also be done more quickly. As with the aforementioned embodiment of the method according to the invention, there is essentially no time delay in the automatic assignment due to properties of the at least one set-up device, for example due to a temperature measurement on a set-up device designed as a pot that correlates to the induced power profile. The response signal therefore does not relate to a temperature measurement or the like, but rather correlates more directly, namely without a significant time delay, with the assignment signal. The term “vibration” here is synonymous with the terms “oscillation” or “shock”. Vibrations that can be perceived by the human senses as well as those that cannot or only cannot be perceived by the human senses includes vibrations that are difficult to perceive. Preferably, the assignment signal is selected such that the vibration of the at least one set-up device is essentially not or only slightly perceptible to the human senses. Preferably, the measuring unit and the transmitting unit are controlled at a voltage induced by at least one of the heating coils in the induction coil of the set-up device set up on the cooking zone assigned to this heating coil in such a way that the measuring unit detects a vibration of the set-up device that correlates with the assignment signal induced in the induction coil of the set-up device and the transmitting unit of the installation device sends the response signal to the receiving unit. The automatic assignment of the at least one set-up device to the at least one hotplate is thus realized in a simple manner by controlling the at least one heating coil of the hotplate on which the set-up device is set up, with an assignment signal, also measuring the vibration of the set-up device and sending it of the response signal identifying the set-up device and correlating to a vibration of the set-up device detected by the measuring unit of the set-up device is triggered to the receiving unit of the hob control that transmits signals to the evaluation unit or to a third-party device connected to the hob control in a signal-transmitting manner. It is conceivable, for example, that one or more features of the respective assignment signal, such as rising edges, falling edges, signal duration, maximums and/or minimums, trigger the measurement of the vibration of the installation device by means of the measuring unit and the sending of the response signal by means of the transmission unit of the respective installation device . If there are several heating coils assigned to a hotplate, only one of these heating coils must be controlled with an assignment signal. Analogous to the above, the term “assignment signal” is to be understood generally when controlling the heating coils of the hotplates as well as when inducing the induction coil of the at least one set-up device. Accordingly, the assignment signal can be, for example, a performance profile. The assignment signal can indicate that a predetermined limit value is exceeded or that the value falls below a predetermined limit value. An interruption of the service as well as a reduction or an increase in the capacity are also conceivable. In addition, more or less complex power profiles are also possible, for example, which have ramps and/or step functions and/or variable distances between power peaks/power dips and/or variable durations of power peaks/power dips. The aforementioned statements regarding the power of an assignment signal designed as a power profile relate in an analogous manner to an assignment signal designed as a current or as a voltage. The above statements are, analogous to above, merely exemplary and therefore not exhaustive. Furthermore, reference is made here to the subsequently published German patent application DE 10 2018 119 969.4 of the applicant, the disclosure content of which is fully incorporated into the present application.

Eine andere vorteilhafte Weiterbildung des erfindungsgemäßen Verfahrens sieht vor, dass das induktive Kochfeld mittels der Kochfeldsteuerung zusätzlich in einem Demonstrationsmodus betrieben wird, wobei das induktive Kochfeld mittels eines von der Empfangseinheit der Kochfeldsteuerung empfangenen Umschaltsignals in den Demonstrationsmodus überführt wird, und wobei der Demonstrationsmodus im Wesentlichen dem Bereitschaftsmodus entspricht, jedoch eine automatische Überführung von dem Demonstrationsmodus in den Betriebsmodus nicht möglich ist. Auf diese Weise ist es möglich, die Funktionalität des induktiven Kochfelds in dessen Bereitschaftsmodus zu Demonstrationszwecken, beispielsweise auf Messen, nutzen zu können, ohne die Gefahr, dass das induktive Kochfeld in ungewünschter Weise in den Betriebsmodus überführt wird. Entsprechend ist die Sicherheit auch in dem Demonstrationsmodus des induktiven Kochfelds vollumfänglich gewährleistet.Another advantageous development of the method according to the invention provides that the inductive hob is additionally operated in a demonstration mode by means of the hob control, the inductive hob being converted into the demonstration mode by means of a switching signal received from the receiving unit of the hob control, and the demonstration mode being essentially the same Standby mode corresponds, but an automatic transfer from demonstration mode to operating mode is not possible. In this way, it is possible to use the functionality of the inductive hob in its standby mode for demonstration purposes, for example at trade fairs, without the risk of the inductive hob being switched to operating mode in an undesirable manner. Accordingly, safety is also fully guaranteed in the demonstration mode of the inductive hob.

Ein Aufstellgerät ist beispielsweise ein Garbehälter, ein Topf, eine Pfanne, ein Wasserkessel, ein Bräter, eine Kasserole, eine Kokotte, eine Tasse, eine Schale, ein Krug, ein Glas, ein Becher oder ein Gargerät, ein Tauchsieder, ein Erwärmungstarget, ein Mixer, ein Rührer, oder vergleichbares.A set-up device is, for example, a cooking container, a pot, a pan, a kettle, a roaster, a casserole dish, a cocotte, a cup, a bowl, a jug, a glass, a mug or a cooking device, an immersion heater, a heating target Mixer, a stirrer, or similar.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt

Figur 1
ein Ausführungsbeispiel des erfindungsgemäßen Systems,
Figur 2
ein Schaubild zu den unterschiedlichen Modi des erfindungsgemäßen induktiven Kochfelds des Systems aus Fig. 1 und
Figur 3
ein Ausführungsbeispiel des erfindungsgemäßen Verfahrens.
An exemplary embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows
Figure 1
an embodiment of the system according to the invention,
Figure 2
a diagram of the different modes of the inductive hob of the system according to the invention Fig. 1 and
Figure 3
an embodiment of the method according to the invention.

In Fig. 1 ist ein Ausführungsbeispiel des erfindungsgemäßen Systems 2 zur Durchführung des erfindungsgemäßen Verfahrens exemplarisch und grob schematisch dargestellt. Das System 2 weist ein induktiv beheiztes Kochfeld, also ein induktives Kochfeld 4, mit insgesamt vier Kochstellen 6 auf. Jeder der Kochstellen 6 ist eine Heizspule 8 zur induktiven Beheizung eines auf der jeweiligen Kochstelle 6 abgestellten Aufstellgeräts auf dem Fachmann bekannte Weise zugeordnet. Zur Ansteuerung der einzelnen Heizspulen 8 weist das Kochfeld 4 eine Kochfeldsteuerung 10 auf. In einem vollständig ausgeschalteten Zustand befindet sich das induktive Kochfeld 4 in einem Ausschaltmodus A. Ferner weist das System 2 ein als Kochtopf 12 ausgebildetes Aufstellgerät auf. Der Kochtopf 12 umfasst eine mit den Heizspulen 8 des Kochfelds 4 induktiv koppelbare Induktionsspule 14 und eine Sendeeinheit 16. Die Sendeeinheit 16 ist bei dem vorliegenden Ausführungsbeispiel als ein Bluetooth-Sender ausgebildet.In Fig. 1 an exemplary embodiment of the system 2 according to the invention for carrying out the method according to the invention is shown as an example and roughly schematically. The system 2 has an inductively heated hob, i.e. an inductive hob 4, with a total of four cooking zones 6. Each of the hotplates 6 is assigned a heating coil 8 for inductive heating of a set-up device placed on the respective hotplate 6 in a manner known to those skilled in the art. To control the individual heating coils 8, the hob 4 has a hob control 10. In a completely switched off state, the inductive hob 4 is in a switch-off mode A. Furthermore, the system 2 has a set-up device designed as a cooking pot 12. The cooking pot 12 includes an induction coil 14 that can be inductively coupled to the heating coils 8 of the hob 4 and a transmitter unit 16. In the present exemplary embodiment, the transmitter unit 16 is designed as a Bluetooth transmitter.

Das induktive Kochfeld 4 umfasst somit mindestens eine Kochstelle 6, mindestens eine der Kochstelle 6 zugeordnete Heizspule 8 und eine Kochfeldsteuerung 10 zur Ansteuerung der Heizspule 8 in einem Betriebsmodus E des induktiven Kochfelds 2 zur Beheizung eines auf der Kochstelle 6 aufgestellten Aufstellgeräts 12 mit einer Sendeeinheit 16. Die Kochfeldsteuerung 10 ist derart ausgebildet und eingerichtet, dass das induktive Kochfeld 4 zusätzlich in einem Standby-Modus S betreibbar ist, wobei eine Ansteuerung der jeweiligen Heizspule 8 in dem Standby-Modus S nicht ermöglicht ist. Ferner ist die Kochfeldsteuerung 10 derart ausgebildet und eingerichtet, dass das induktive Kochfeld 4 in einem Bereitschaftsmodus B betreibbar ist, wobei das induktive Kochfeld 4 mittels eines von einer Empfangseinheit 18 der Kochfeldsteuerung 10 empfangenen Wecksignals von dem Standby-Modus S in den Bereitschaftsmodus B überführbar ist. Die jeweilige Heizspule 8 ist in dem Bereitschaftsmodus B mittels der Kochfeldsteuerung 10 derart ansteuerbar, dass zum einen eine für einen Zubereitungsvorgang wirksame Beheizung des Aufstellgeräts 12 verhindert ist und zum anderen eine Signalübertragung zwischen der Sendeeinheit 16 und der Empfangseinheit 18 mittels der Heizspule 8 ermöglicht ist.The inductive hob 4 thus comprises at least one hotplate 6, at least one heating coil 8 assigned to the hotplate 6 and a hob control 10 for controlling the heating coil 8 in an operating mode E of the inductive hob 2 for heating a set-up device 12 set up on the hotplate 6 with a transmitting unit 16 The hob control 10 is designed and set up in such a way that the inductive hob 4 can also be operated in a standby mode S, with the respective heating coil 8 not being able to be controlled in the standby mode S. Furthermore, the hob control 10 is designed and set up in such a way that the inductive hob 4 can be operated in a standby mode B, the inductive hob 4 being able to be transferred from standby mode S to standby mode B by means of a wake-up signal received from a receiving unit 18 of the hob control 10 . The respective heating coil 8 can be controlled in the standby mode B by means of the hob control 10 in such a way that, on the one hand, effective heating of the set-up device 12 for a preparation process is prevented and, on the other hand, signal transmission between the transmitting unit 16 and the receiving unit 18 by means of the heating coil 8 is made possible.

Darüber hinaus ist es bei dem vorliegenden Ausführungsbeispiel vorgesehen, dass die Heizspule 8 in dem Bereitschaftsmodus B mittels der Kochfeldsteuerung 10 derart ansteuerbar ist, dass eine Übertragung einer Betriebsenergie von dem induktiven Kochfeld 4 zu dem Aufstellgerät 12, das auf der dieser Heizspule 8 zugeordneten Kochstelle 6 aufgestellt ist, mittels der Heizspule 8 ermöglicht ist.In addition, in the present exemplary embodiment it is provided that the heating coil 8 can be controlled in the standby mode B by means of the hob control 10 in such a way that a transfer of operating energy from the inductive hob 4 to the set-up device 12, which is on the hob 6 assigned to this heating coil 8 is set up, made possible by means of the heating coil 8.

Das induktive Kochfeld 4 ist mittels der Kochfeldsteuerung 10 und in Abhängigkeit von einem in dem Bereitschaftsmodus B mittels der Empfangseinheit 18 empfangenen Antwortsignal automatisch von dem Bereitschaftsmodus B in den Betriebsmodus E überführbar.The inductive hob 4 can be automatically transferred from the standby mode B to the operating mode E by means of the hob control 10 and depending on a response signal received in the standby mode B by means of the receiving unit 18.

Die Kochfeldsteuerung 10 steuert die einzelnen Heizspulen 8 in dem Bereitschaftsmodus B des induktiven Kochfelds 4 jeweils mit einem individuellen Zuordnungssignal an. Die jeweiligen Zuordnungssignale sind als Leistungsprofile ausgebildet. Die Leistungsprofile sind nicht zwingend für eine Beheizung der Kochstellen und damit von auf den Kochstellen aufgestellten Aufstellgeräten ausgebildet, sondern können auch lediglich für die Funktion der automatischen Zuordnung ausgebildet sein.The hob control 10 controls the individual heating coils 8 in the standby mode B of the inductive hob 4 with an individual assignment signal. The respective assignment signals are designed as performance profiles. The power profiles are not necessarily designed for heating the hotplates and thus for devices placed on the hotplates, but can also only be designed for the automatic assignment function.

Die als Bluetooth-Sender ausgebildete Sendeeinheit 16 wird, wie oben bereits ausgeführt, mittels einer in die Induktionsspule 14 induzierten Spannung mit einer für das Senden erforderlichen Betriebsenergie versorgt. Hierfür ist die Sendeeinheit 16 mit der Induktionsspule 14 energieübertragend verbunden. Das von der Sendeeinheit 16 gesendete Antwortsignal kann von der Empfangseinheit 18 der Kochfeldsteuerung 10 empfangen werden. Das Antwortsignal ist in Fig. 1 mittels eines Blitzsymbols 20 symbolisiert. Das mittels der Empfangseinheit 18 empfangene Antwortsignal 20 ist mittels einer Auswerteeinheit 22 der Kochfeldsteuerung 10 mit den einzelnen Heizspulen 8 zugeordneten Leistungsprofilen vergleichbar.The transmitting unit 16 designed as a Bluetooth transmitter is, as already explained above, supplied with the operating energy required for transmitting by means of a voltage induced in the induction coil 14. For this purpose, the transmitting unit 16 is connected to the induction coil 14 to transmit energy. The response signal sent by the transmitting unit 16 can be received by the receiving unit 18 of the hob control 10. The response signal is in Fig. 1 symbolized by a lightning bolt symbol 20. The response signal 20 received by the receiving unit 18 is by means of an evaluation unit 22 the hob control 10 is comparable to the performance profiles assigned to the individual heating coils 8.

Im Nachfolgenden wird das erfindungsgemäße Verfahren gemäß dem vorliegenden Ausführungsbeispiel des Systems 2 anhand der Fig. 1 bis 3 näher erläutert. In der Fig. 2 ist ein Schaubild dargestellt, in dem die einzelnen Modi A, S, B und E des induktiven Kochfelds 4 nebeneinander gezeigt sind. In der Fig. 3 ist das erfindungsgemäße Verfahren anhand eines Zeit-Signal-Diagramms exemplarisch dargestellt.The method according to the invention according to the present exemplary embodiment of the system 2 is described below using the Fig. 1 to 3 explained in more detail. In the Fig. 2 A diagram is shown in which the individual modes A, S, B and E of the inductive hob 4 are shown side by side. In the Fig. 3 the method according to the invention is shown as an example using a time-signal diagram.

Das erfindungsgemäße Verfahren funktioniert grundsätzlich wie folgt:
Ein nicht dargestellter Benutzer des Systems 2 stellt den Kochtopf 12 auf die in der Bildebene von Fig. 1 rechts unten angeordnete Kochstelle 6 des Kochfelds 4.
The method according to the invention basically works as follows:
A user of the system 2, not shown, places the cooking pot 12 on the image plane of Fig. 1 The hotplate 6 of the hob 4 is located at the bottom right.

Sofern sich das induktive Kochfeld 4 in dessen Ausschaltmodus A befindet, beispielsweise in dem das induktive Kochfeld 4 mittels eines nicht dargestellten Hauptschalters vollständig ausgeschaltet worden ist, kann der nicht dargestellte Benutzer das induktive Kochfeld 4 des Systems 2, beispielsweise mittels eines aus dem Stand der Technik bekannten Bedieneingriffs an dem induktiven Kochfeld 4, von dem Ausschaltmodus A direkt in den Betriebsmodus E überführen. Siehe hierzu die Fig. 2, oberste Zeile. Der Benutzer kann dann auf dem Fachmann bekannte Weise einen Zubereitungsvorgang, beispielsweise einen Kochvorgang, mittels des Systems 2 durchführen. Hierfür kann der Benutzer an dem induktiven Kochfeld 4, beispielsweise mittels eines auf dem induktiven Kochfeld 4 eingeblendeten Zahlenstrangs Z1 eine Leistungseinstellung L1 für die Heizspule 8 vornehmen, die der Kochstelle 6 zugeordnet ist, auf der dieser das als Kochtopf ausgebildete Aufstellgerät 12 aufgestellt hat.If the inductive hob 4 is in its switch-off mode A, for example in which the inductive hob 4 has been completely switched off by means of a main switch, not shown, the user, not shown, can use the inductive hob 4 of the system 2, for example by means of one from the prior art known operating intervention on the inductive hob 4, from the switch-off mode A directly into the operating mode E. See the Fig. 2 , top line. The user can then carry out a preparation process, for example a cooking process, using the system 2 in a manner known to those skilled in the art. For this purpose, the user can make a power setting L1 for the heating coil 8 on the inductive hob 4, for example by means of a number string Z1 displayed on the inductive hob 4, which is assigned to the hob 6 on which the user has set up the device 12 designed as a cooking pot.

Befindet sich das induktive Kochfeld 4 in dessen Standby-Modus S, also in dem das induktive Kochfeld 4 nicht vollständig ausgeschaltet ist, ist eine Ansteuerung der Heizspulen 8 technisch nicht ermöglicht. Dazu müsste der Benutzer das induktive Kochfeld 4 beispielsweise erst auf die oben erläuterte Weise in den Betriebsmodus E überführen. Siehe Fig. 2, mittlere Zeile, oben.If the inductive hob 4 is in its standby mode S, i.e. in which the inductive hob 4 is not completely switched off, it is not technically possible to control the heating coils 8. To do this, the user would first have to transfer the inductive hob 4 to operating mode E, for example, in the manner explained above. Please refer Fig. 2 , middle row, top.

Jedoch ist das induktive Kochfeld 4 des Systems 2 dazu ausgebildet und eingerichtet, um von dem Standby-Modus S automatisch in den Bereitschaftsmodus B überführt zu werden. Hierfür bedarf es eines Wecksignals, das mittels der Empfangseinheit 18 der Kochfeldsteuerung 10 empfangen wird. Dieses Wecksignal kann auf voneinander verschiedene Weise erzeugt werden. Bei dem vorliegenden Ausführungsbeispiel ist es vorgesehen, dass das Wecksignal mittels einer Betätigung eines an dem Aufstellgerät 12 angeordneten und mit der Sendeeinheit 16 in Signalübertragungsverbindung stehenden Bedienelements oder mittels eines an dem Aufstellgerät 12 angeordneten und mit der Sendeeinheit 16 in Signalübertragungsverbindung stehenden Bewegungssensors oder mittels einer Betätigung eines an dem induktiven Kochfeld 4 angeordneten und mit der Empfangseinheit 18 der Kochfeldsteuerung 10 in Signalübertragungsverbindung stehenden Bedienelements oder mittels einer Betätigung eines an einem Drittgerät angeordneten und mit der Empfangseinheit 18 der Kochfeldsteuerung 10 in Signalübertragungsverbindung stehenden Bedienelements erzeugt wird. Entsprechend ist das induktive Kochfeld 4 auf sehr unterschiedliche Weise von dem Standby-Modus S in den Bereitschaftsmodus B überführbar, was den Bedienkomfort des Systems 2 steigert. Das Bedienelement des Aufstellgeräts 12, der als Beschleunigungssensor ausgebildete Bewegungssensor des Aufstellgeräts 12, das Bedienelement des induktiven Kochfelds 4 und das als Smartphone ausgebildete Drittgerät sind nicht dargestellt.However, the inductive hob 4 of the system 2 is designed and set up to be automatically transferred from standby mode S to standby mode B. This requires a wake-up signal, which is received by the receiving unit 18 of the hob control 10. This wake-up signal can be generated in different ways. In the present exemplary embodiment, it is provided that the wake-up signal is activated by means of an actuation of a device arranged on the set-up device 12 and in signal transmission connection with the transmitting unit 16 Control element or by means of a motion sensor arranged on the set-up device 12 and in signal transmission connection with the transmitting unit 16 or by actuation of a control element arranged on the inductive hob 4 and in signal transmission connection with the receiving unit 18 of the hob control 10 or by actuation of a control element arranged on a third-party device and with the receiving unit 18 of the hob control 10 in signal transmission connection is generated. Accordingly, the inductive hob 4 can be transferred from standby mode S to standby mode B in very different ways, which increases the ease of use of the system 2. The control element of the set-up device 12, the motion sensor of the set-up device 12 designed as an acceleration sensor, the control element of the inductive hob 4 and the third-party device designed as a smartphone are not shown.

Beispielsweise wird das Wecksignal mittels einer Betätigung des an dem Aufstellgerät 12 angeordneten und mit der Sendeeinheit 16 in Signalübertragungsverbindung stehenden Bedienelements des Aufstellgeräts 12 generiert. Hierfür drückt der Benutzer beispielsweise das als Taste ausgebildete Bedienelement des Aufstellgeräts 12 und stellt das Aufstellgerät 12 auf die oben genannte Kochstelle 6 des induktiven Kochfelds 4 auf. Dieser Tastendruck wird mittels der Sendeeinheit 16 des Aufstellgeräts 12 ausgewertet und in das Wecksignal umgewandelt. Das Wecksignal wird dann mittels der Sendeinheit 16, der Heizspule 8 und der Empfangseinheit 18 in die Kochfeldsteuerung 10 übertragen. Die Kochfeldsteuerung 10 überführt das induktive Kochfeld 4 daraufhin von dem Standby-Modus S in den Bereitschaftsmodus B. Siehe Fig. 2, mittlere Zeile, unten.For example, the wake-up signal is generated by actuating the control element of the set-up device 12 which is arranged on the set-up device 12 and is in signal transmission connection with the transmitting unit 16. For this purpose, the user presses, for example, the control element of the set-up device 12, which is designed as a button, and places the set-up device 12 on the above-mentioned hotplate 6 of the inductive hob 4. This keystroke is evaluated by the transmitting unit 16 of the set-up device 12 and converted into the wake-up signal. The wake-up signal is then transmitted to the hob control 10 by means of the transmitting unit 16, the heating coil 8 and the receiving unit 18. The hob control 10 then transfers the inductive hob 4 from standby mode S to standby mode B. See Fig. 2 , middle row, bottom.

Die elektrische Leistung, mit der die Kochfeldsteuerung 10 die Heizspule 8 in dem Bereitschaftsmodus B ansteuert weist einen Mittelwert von kleiner oder gleich 30 W, bevorzugt kleiner oder gleich 15 W, auf. Ferner weist die elektrische Leistung, mit der die Kochfeldsteuerung 10 die Heizspule 8 in dem Bereitschaftsmodus B ansteuert ein Pausen-Leistungs-Verhältnis von größer oder gleich 1000:1 auf, nämlich eine Bestromung in einem Zeitintervall von 160 µs im Vergleich zu einem Pausenintervall von 2 s. Hierdurch ist zum einen eine für einen Zubereitungsvorgang wirksame Beheizung des Aufstellgeräts 12 verhindert und zum anderen eine Signalübertragung zwischen der Sendeeinheit 16 und der Empfangseinheit 18 mittels der Heizspule 8 ermöglicht. Ferner ist eine Übertragung einer Betriebsenergie von dem induktiven Kochfeld 4 zu dem Aufstellgerät 12, das auf der dieser Heizspule 8 zugeordneten Kochstelle 6 aufgestellt ist, mittels der Heizspule 8 ermöglicht.The electrical power with which the hob control 10 controls the heating coil 8 in standby mode B has an average value of less than or equal to 30 W, preferably less than or equal to 15 W. Furthermore, the electrical power with which the hob control 10 controls the heating coil 8 in the standby mode B has a pause-power ratio of greater than or equal to 1000:1, namely an energization in a time interval of 160 μs compared to a pause interval of 2 s. On the one hand, this prevents effective heating of the set-up device 12 for a preparation process and, on the other hand, enables signal transmission between the transmitting unit 16 and the receiving unit 18 by means of the heating coil 8. Furthermore, a transfer of operating energy from the inductive hob 4 to the set-up device 12, which is set up on the cooking area 6 assigned to this heating coil 8, is made possible by means of the heating coil 8.

Mit der Überführung des induktiven Kochfelds 4 von dessen Standby-Modus S in dessen Bereitschaftsmodus B wird mittels der Kochfeldsteuerung 10 die automatische Zuordnung des Aufstellgeräts 12 zu der oben genannten Kochstelle 6 des induktiven Kochfelds 4 gestartet, die nachfolgend näher erläutert ist:
Wie oben beschrieben, hat der Benutzer des Systems 2 das Kochfeld 4 eingeschaltet und das als Kochtopf ausgebildete Aufstellgerät 12 auf der in der Bildebene von Fig. 1 rechts unten, also rechts vorne, angeordneten Kochstelle 6 des Kochfelds 4 aufgestellt. Nach der Überführung des Kochfelds 4 von dessen Standby-Modus S in dessen Bereitschaftsmodus B zu einem Zeitpunkt t= 0 s, das in der Fig. 3 durch einen Pfeil 24 symbolisiert ist, steuert die Kochfeldsteuerung 10 die Heizspulen 8 der einzelnen Kochstellen 6 nacheinander, also sukzessive, mit deren jeweiligem Leistungsprofil an. Dies ist in der Fig. 3 mittels der Linien a, b, c und d symbolisiert, wobei die Linie a die Ansteuerung der zu der in der Bildebene von Fig. 1 links unten dargestellten Kochstelle 6 korrespondierenden Heizspule 8, die Linie b die Ansteuerung der zu der in der Bildebene von Fig. 1 rechts unten dargestellten Kochstelle 6 korrespondierenden Heizspule 8, die Linie c die Ansteuerung der zu der in der Bildebene von Fig. 1 recht oben dargestellten Kochstelle 6 korrespondierenden Heizspule 8 und die Linie d die Ansteuerung der zu der in der Bildebene von Fig. 1 links oben dargestellten Kochstelle 6 korrespondierenden Heizspule 8 symbolisiert.
When the inductive hob 4 is transferred from its standby mode S to its standby mode B, the hob control 10 automatically assigns it of the set-up device 12 to the above-mentioned hotplate 6 of the inductive hob 4, which is explained in more detail below:
As described above, the user of the system 2 has the hob 4 switched on and the set-up device 12, designed as a cooking pot, on the in the image plane of Fig. 1 The hotplate 6 of the hob 4 is placed at the bottom right, i.e. at the front right. After the hob 4 has been transferred from its standby mode S to its standby mode B at a time t = 0 s, which is in the Fig. 3 is symbolized by an arrow 24, the hob control 10 controls the heating coils 8 of the individual hotplates 6 one after the other, i.e. successively, with their respective power profile. This is in the Fig. 3 symbolized by the lines a, b, c and d, where the line a represents the control of the in the image plane of Fig. 1 The heating coil 8 corresponding to the hotplate 6 shown at the bottom left, the line b the control of the heating coil 8 in the image plane of Fig. 1 The heating coil 8 corresponding to the hotplate 6 shown at the bottom right, the line c the control of the heating coil 8 in the image plane of Fig. 1 The heating coil 8 corresponding to the hotplate 6 shown at the top right and the line d the control of the heating coil 8 in the image plane of Fig. 1 The heating coil 8 corresponding to the hotplate 6 shown at the top left is symbolized.

Da auf der in der Bildebene von Fig. 1 rechts unten dargestellten Kochstelle 6 der Kochtopf 12 aufgestellt ist, wird bei der Ansteuerung der dieser Kochstelle 6 zugeordneten Heizspule 8 eine Spannung von dieser Heizspule 8 in der Induktionsspule 14 des Kochtopfs 12 induziert. Siehe hierzu die Linie b in Fig. 3. Aufgrund der in der Induktionsspule 14 induzierten Spannung wird die als Bluetooth-Sender ausgebildete Sendeeinheit 16 des Kochtopfs 12 mit der für ein Senden erforderlichen Betriebsenergie versorgt. Darüber hinaus wird mittels der induzierten Spannung gleichzeitig ein Senden der Sendeeinheit 16 ausgelöst, nämlich das Senden des Antwortsignals 20. Siehe Fig. 3. Das Antwortsignal 20 umfasst zum einen eine den Kochtopf 12 als genau diesen individuellen Kochtopf 12 kennzeichnende Identifizierung. Diese Identifizierung des Kochtopfs 12 kann beispielsweise für einen Garvorgang auf dem Kochfeld 4 wichtige Kochtopfeigenschaften aufweisen. Zum anderen umfasst das Antwortsignal 20 mindestens eine zu dem mittels der Heizspule 8 der in der Bildebene von Fig. 1 rechts unten dargestellten Kochstelle 6 in die Induktionsspule 14 des Kochtopfs 12 induzierten Leistungsprofil korrelierende Größe. Beispielsweise kann es sich bei dieser Größe um das Leistungsprofil als solches handeln. Denkbar ist jedoch auch, dass diese Größe mindestens eine das Leistungsprofil charakterisierende elektrische und/oder magnetische Größe ist.Since on the in the image plane of Fig. 1 The cooking pot 12 is set up on the hotplate 6 shown at the bottom right, when the heating coil 8 assigned to this hotplate 6 is activated, a voltage is induced by this heating coil 8 in the induction coil 14 of the cooking pot 12. See line b in Fig. 3 . Due to the voltage induced in the induction coil 14, the transmitting unit 16 of the cooking pot 12, designed as a Bluetooth transmitter, is supplied with the operating energy required for transmission. In addition, the induced voltage simultaneously triggers transmission of the transmission unit 16, namely the transmission of the response signal 20. See Fig. 3 . The response signal 20 includes, on the one hand, an identification that identifies the cooking pot 12 as precisely this individual cooking pot 12. This identification of the cooking pot 12 can, for example, have important cooking pot properties for a cooking process on the hob 4. On the other hand, the response signal 20 includes at least one to which the heating coil 8 is located in the image plane Fig. 1 The power profile correlating size induced in the hotplate 6 shown at the bottom right in the induction coil 14 of the cooking pot 12. For example, this size can be the performance profile as such. However, it is also conceivable that this variable is at least one electrical and/or magnetic variable that characterizes the performance profile.

Das Antwortsignal 20 wird an die Empfangseinheit 18 der Kochfeldsteuerung 10 gesendet. Das von der Empfangseinheit 18 empfangene Antwortsignal 20 wird dann auf dem Fachmann bekannte Weise an die mit der Empfangseinheit 18 signalübertragend verbundene Auswerteeinheit 22 der Kochfeldsteuerung 10 zur Auswertung übertragen. In der Auswerteeinheit 22 wird das Antwortsignal 20 unter anderem mit dem Leistungsprofil der der in der Bildebene von Fig. 1 rechts unten dargestellten Kochstelle 6, auf der das als Kochtopf ausgebildete Aufstellgerät 12 aufgestellt ist, zugeordneten Heizspule 8 verglichen, mit dem diese Heizspule 8 mittels der Kochfeldsteuerung 10 angesteuert worden ist. Da die zu diesem Leistungsprofil korrelierende mindestens eine Größe, die mit dem Antwortsignal 20 von dem Aufstellgerät 12 an die Kochfeldsteuerung 10 übertragen worden ist, mit diesem Leistungsprofil übereinstimmt, wird das Aufstellgerät 12 der in der Bildebene von Fig. 1 rechts unten dargestellten Kochstelle 6 mittels der Auswerteeinheit 22 der Kochfeldsteuerung 10 automatisch zugeordnet. Die Kochfeldsteuerung 10 weiß nun, dass auf dieser Kochstelle 6 genau dieses Aufstellgerät 12 aufgestellt ist und kann auf dieser Basis den Garvorgang, also den Zubereitungsvorgang, für dieses individuelle Aufstellgerät 12 mittels der Ansteuerung der dieser Kochstelle 6 zugeordneten Heizspule 8 steuern oder regeln. Das Antwortsignal 20 wird in der Auswerteeinheit 22 auch mit den Leistungsprofilen der übrigen den in der Fig. 1 dargestellten weiteren Kochstellen 6 zugeordneten Heizspulen 8 verglichen, mit denen diese Heizspulen 8 mittels der Kochfeldsteuerung 10 angesteuert worden sind. Da das Aufstellgerät 12 jedoch nicht auf diese Kochstellen 6 und damit nicht über den diesen Kochstellen 6 zugeordneten Heizspulen 8 aufgestellt ist, führt die jeweilige Ansteuerung dieser Heizspulen 8 nicht zu einem zu einem dieser Leistungsprofile korrespondierenden Antwortsignal.The response signal 20 is sent to the receiving unit 18 of the hob control 10. The response signal 20 received by the receiving unit 18 is then transmitted in a manner known to those skilled in the art to the signal-transmitting signal connected to the receiving unit 18 Evaluation unit 22 of the hob control 10 is transmitted for evaluation. In the evaluation unit 22, the response signal 20 is, among other things, with the power profile of the in the image plane of Fig. 1 Cooking place 6 shown at the bottom right, on which the set-up device 12 designed as a cooking pot is placed, is compared to the heating coil 8 assigned to it, with which this heating coil 8 was controlled by means of the hob control 10. Since the at least one variable correlating to this performance profile, which has been transmitted with the response signal 20 from the set-up device 12 to the hob control 10, corresponds to this performance profile, the set-up device 12 is in the image plane of Fig. 1 The hotplate 6 shown at the bottom right is automatically assigned to the hob control 10 by means of the evaluation unit 22. The hob control 10 now knows that exactly this set-up device 12 is set up on this hotplate 6 and can, on this basis, control or regulate the cooking process, i.e. the preparation process, for this individual set-up device 12 by means of the control of the heating coil 8 assigned to this hotplate 6. The response signal 20 is also combined in the evaluation unit 22 with the performance profiles of the remaining ones in the Fig. 1 illustrated further cooking zones 6 associated heating coils 8 compared with which these heating coils 8 were controlled by means of the hob control 10. However, since the set-up device 12 is not set up on these hotplates 6 and therefore not above the heating coils 8 assigned to these hotplates 6, the respective control of these heating coils 8 does not lead to a response signal corresponding to one of these power profiles.

Wie aus Fig. 3 weiter ersichtlich ist, erfolgen auf die in der Zeitachse links dargestellten Ansteuerungen der übrigen Heizspulen 8 des induktiven Kochfelds 4 keine Antwortsignale von etwaigen anderen Aufstellgeräten.How out Fig. 3 As can also be seen, there are no response signals from any other set-up devices to the activation of the remaining heating coils 8 of the inductive hob 4 shown in the time axis on the left.

Gemäß den vorgenannten Ausführungen war die Zuordnung des Aufstellgeräts 12 zu der in der Bildebene von Fig. 1 rechts unten dargestellten Kochstelle 6 und damit zu der zu dieser Kochstelle 6 korrespondierenden Heizspule 8 erfolgreich, so dass die Kochfeldsteuerung 10 das induktive Kochfeld 4 des Systems 2 automatisch von dem Bereitschaftsmodus B in den Betriebsmodus E überführt. Der Benutzer kann an dem induktiven Kochfeld 4, beispielsweise mittels des oben genannten Zahlenstrangs Z1 eine Leistungseinstellung L1 für diese Heizspule 8 vornehmen. Bei dem vorliegenden Ausführungsbeispiel ist es darüber hinaus möglich, dass der Benutzer mittels von Bedienelementen Z2 des Aufstellgeräts 12 eine Leistungseinstellung L2 für die vorgenannte Heizspule 8 vornehmen kann. Die Bedienelemente Z2 des Aufstellgeräts 12 sind nicht dargestellt. Der Benutzer kann also die der vorgenannten Heizspule 8 zugeführte Leistung zum einen direkt an dem induktiven Kochfeld 4 und zum anderen an dem Aufstellgerät 12 einstellen.According to the aforementioned statements, the assignment of the installation device 12 was to that in the image plane of Fig. 1 hotplate 6 shown at the bottom right and thus to the heating coil 8 corresponding to this hotplate 6 successfully, so that the hob control 10 automatically transfers the inductive hob 4 of the system 2 from standby mode B to operating mode E. The user can make a power setting L1 for this heating coil 8 on the inductive hob 4, for example using the number string Z1 mentioned above. In the present exemplary embodiment, it is also possible for the user to be able to set a power setting L2 for the aforementioned heating coil 8 using controls Z2 of the installation device 12. The controls Z2 of the set-up device 12 are not shown. The user can therefore adjust the power supplied to the aforementioned heating coil 8 directly on the inductive hob 4 and on the set-up device 12.

Sofern eine automatische Zuordnung des Aufstellgeräts 12 zu einer der Kochstellen 6 des induktiven Kochfelds 4 des Systems 2 nicht erfolgt, beispielsweise, weil das Aufstellgerät 12 auf keiner der Kochstellen 6 des induktiven Kochfelds 4 aufgestellt worden ist, überführt die Kochfeldsteuerung 10 das induktive Kochfeld 4, beispielsweise nach Ablauf einer vorher festgelegten und in der Kochfeldsteuerung 10 abgespeicherten Zeitspanne, automatisch von dem Bereitschaftsmodus B zurück in den Standby-Modus S. Siehe die Fig. 2, mittlere Zeile, unten.If the set-up device 12 is not automatically assigned to one of the hotplates 6 of the inductive hob 4 of the system 2, for example because the set-up device 12 has not been set up on any of the hotplates 6 of the inductive hob 4, the hob control 10 automatically transfers the inductive hob 4 from the standby mode B back to the standby mode S, for example after a predetermined period of time stored in the hob control 10. See the Fig. 2 , middle row, bottom.

Analog zu der oben erläuterten Überführung des induktiven Kochfelds 4 von dessen Ausschaltmodus A in dessen Betriebsmodus E ist es bei dem vorliegenden Ausführungsbeispiel auch möglich, das induktive Kochfeld 4 von dem Standby-Modus S direkt in den Betriebsmodus E zu überführen. Siehe hierzu ebenfalls die Fig. 2, mittlere Zeile, oben.Analogous to the above-explained transfer of the inductive hob 4 from its switch-off mode A to its operating mode E, it is also possible in the present exemplary embodiment to transfer the inductive hob 4 from the standby mode S directly to the operating mode E. See also this Fig. 2 , middle row, top.

Bei dem vorliegenden Ausführungsbeispiel des erfindungsgemäßen Verfahrens werden die einzelnen Heizspulen 8 des Kochfelds 4 in dem Bereitschaftsmodus B und in dem Betriebsmodus E des induktiven Kochfelds 4 in vorher festgelegten Zeitabständen unabhängig von einem Wecksignal kontinuierlich sukzessive angesteuert. Bei jedem Durchlauf der Ansteuerung der einzelnen Heizspulen 8 mittels der Kochfeldsteuerung 10 werden immer alle vier Heizspulen 8 des Kochfelds 4 sukzessive angesteuert. Nach dem in der Fig. 3 links dargestellten Durchlauf beginnt ab t= 3,5 s ein erneuter Durchlauf mit der sukzessiven Ansteuerung der Heizspulen 8 des induktiven Kochfelds 4. Bei dem vorliegenden Ausführungsbeispiel erfolgt die Ansteuerung der einzelnen Heizspulen 8 des induktiven Kochfeldes 4 mit deren jeweiligem Leistungsprofil in dem Bereitschaftsmodus B und in dem Betriebsmodus E des induktiven Kochfelds 4 also in Abhängigkeit mindestens eines vorher festgelegten Zeitintervalls kontinuierlich.In the present exemplary embodiment of the method according to the invention, the individual heating coils 8 of the hob 4 are continuously and successively controlled in the standby mode B and in the operating mode E of the inductive hob 4 at predetermined time intervals, independently of a wake-up signal. Each time the individual heating coils 8 are controlled using the hob control 10, all four heating coils 8 of the hob 4 are successively activated. After that in the Fig. 3 In the cycle shown on the left, a new cycle begins from t = 3.5 s with the successive control of the heating coils 8 of the inductive hob 4. In the present exemplary embodiment, the individual heating coils 8 of the inductive hob 4 are activated with their respective power profile in standby mode B and in the operating mode E of the inductive hob 4, i.e. continuously depending on at least a predetermined time interval.

Siehe hierzu beispielsweise die Fig. 2, unterste Zeile. Die automatische Überführung des induktiven Kochfelds 4 von dessen Bereitschaftsmodus B in dessen Betriebsmodus E erfolgt zum einen durch den oben bereits erläuterten Bedieneingriff und damit analog zu der Überführung von dem Ausschaltmodus A in den Betriebsmodus E. Zum anderen erfolgt die Überführung von dem Bereitschaftsmodus B in den Betriebsmodus E automatisch durch eine erfolgreiche Zuordnung von dem Aufstellgerät 12 auf der einen Seite zu einer der Kochstellen 6 des induktiven Kochfelds 4 auf der anderen Seite.See for example the Fig. 2 , bottom line. The automatic transfer of the inductive hob 4 from its standby mode B to its operating mode E takes place on the one hand through the operating intervention already explained above and thus analogous to the transfer from the switch-off mode A to the operating mode E. On the other hand, the transfer takes place from the standby mode B to the Operating mode E automatically through a successful assignment of the set-up device 12 on one side to one of the cooking zones 6 of the inductive hob 4 on the other side.

Die Erfindung ist nicht auf das vorliegende Ausführungsbeispiel begrenzt. In anderen Ausführungsformen der Erfindung kann vorgesehen sein, dass das induktive Kochfeld mittels der Kochfeldsteuerung zusätzlich in einem Demonstrationsmodus betrieben wird, wobei das induktive Kochfeld mittels eines von der Empfangseinheit der Kochfeldsteuerung empfangenen Umschaltsignals in den Demonstrationsmodus überführt wird, und wobei der Demonstrationsmodus im Wesentlichen dem Bereitschaftsmodus entspricht, jedoch eine automatische Überführung von dem Demonstrationsmodus in den Betriebsmodus nicht möglich ist. Auf diese Weise ist es möglich, die Funktionalität des induktiven Kochfelds in dessen Bereitschaftsmodus zu Demonstrationszwecken, beispielsweise auf Messen, nutzen zu können, ohne die Gefahr, dass das induktive Kochfeld in ungewünschter Weise in den Betriebsmodus überführt wird. Entsprechend ist die Sicherheit auch in dem Demonstrationsmodus des induktiven Kochfelds vollumfänglich gewährleistet. Ferner wird auf die weiteren Ausführungen der nachveröffentlichten deutschen Patentanmeldung DE 10 2018 119 965.1 verwiesen.The invention is not limited to the present exemplary embodiment. In other embodiments of the invention, it can be provided that the inductive hob is additionally operated in a demonstration mode by means of the hob control, the inductive hob being converted into the demonstration mode by means of a switching signal received from the receiving unit of the hob control, and the demonstration mode essentially being the standby mode corresponds, but an automatic transfer from the demonstration mode to the operating mode does not is possible. In this way, it is possible to use the functionality of the inductive hob in its standby mode for demonstration purposes, for example at trade fairs, without the risk of the inductive hob being switched to operating mode in an undesirable manner. Accordingly, safety is also fully guaranteed in the demonstration mode of the inductive hob. Furthermore, reference is made to the further statements in the subsequently published German patent application DE 10 2018 119 965.1 referred.

Eine zu dem Ausführungsbeispiel alternative Ausführungsform der automatischen Zuordnung mindestens eines Aufstellgeräts zu mindestens einer Kochstelle des induktiven Kochfelds sieht beispielsweise vor, dass die Kochfeldsteuerung die Heizspulen mit mindestens einem Zuordnungssignal ansteuert und die Messeinheit eine zu dem in die Induktionsspule induzierten Zuordnungssignal korrelierende Vibration des Aufstellgeräts detektiert und die Sendeeinheit ein das Aufstellgerät identifizierendes und zu der detektierten Vibration des Aufstellgeräts korrelierendes Antwortsignal an die Empfangseinheit der Kochfeldsteuerung oder eines mit der Kochfeldsteuerung in Signalübertragungsverbindung stehenden Drittgeräts sendet und das Antwortsignal in einer mit der Empfangseinheit signalübertragend verbundenen Auswerteeinheit der Kochfeldsteuerung oder dem Drittgerät mit dem Zuordnungssignal der mindestens einen Heizspule dieser Kochstelle verglichen wird und in Abhängigkeit dieses Vergleichs das identifizierte Aufstellgerät dieser Kochstelle zugeordnet wird. Siehe hierzu auch die nachveröffentlichte deutsche Patentanmeldung DE 10 2018 119 969.4 der Anmelderin.An alternative embodiment to the exemplary embodiment of the automatic assignment of at least one set-up device to at least one hotplate of the inductive hob provides, for example, that the hob control controls the heating coils with at least one assignment signal and the measuring unit detects and correlates a vibration of the set-up device with the assignment signal induced in the induction coil the transmitting unit sends a response signal identifying the set-up device and correlating to the detected vibration of the set-up device to the receiving unit of the hob control or a third-party device in signal transmission connection with the hob control and the response signal in an evaluation unit of the hob control or the third-party device connected to the receiving unit for signal transmission with the assignment signal at least one heating coil of this hotplate is compared and, depending on this comparison, the identified set-up device is assigned to this hotplate. See also the subsequently published German patent application DE 10 2018 119 969.4 the applicant.

Jedoch sind auch andere Ausführungsformen der automatischen Zuordnung mindestens eines Aufstellgeräts zu mindestens einer Kochstelle des induktiven Kochfelds denkbar. Siehe hierzu die DE 10 2017 112 945 B3 sowie die nachveröffentlichte deutsche Patentanmeldung DE 10 2018 119 953.8 der Anmelderin.However, other embodiments of the automatic assignment of at least one set-up device to at least one hotplate of the inductive hob are also conceivable. See the DE 10 2017 112 945 B3 as well as the subsequently published German patent application DE 10 2018 119 953.8 the applicant.

Claims (13)

  1. System (2) comprising an inductive cooking hob (4) and an installation device (12) for installing on the inductive cooking hob (4),
    the installation device (12) having an induction coil (14) which can be inductively coupled to the heating coil (8) and a transmitting unit (16) or a transmitting unit and a measuring unit has a transmitting unit (16), and
    the inductive cooking hob (4) having at least one hot plate (6), at least one heating coil (8) assigned to the hot plate (6), and a cooking hob controller (10) for controlling the heating coil (8) in an operating mode of the inductive cooking hob (4) for heating the installation device (12) installed on the hot plate (6),
    the cooking hob controller (10) being designed and configured such that the inductive cooking hob (4) can additionally be operated in a standby mode, it not being possible for the heating coil (8) to be controlled in the standby mode,
    and the cooking hob controller (10) being designed and configured such that the inductive cooking hob (4) can additionally be operated in a ready mode,
    it being possible for the inductive cooking hob (4) to be transferred from the standby mode into the ready mode by means of an alarm signal received by a receiving unit (18) of the cooking hob controller (10),
    and it being possible for the heating coil (8) to be controlled in the ready mode by means of the cooking hob controller (10) such that heating of the installation device (12) effective for a preparation process is prevented, and signal transmission between the transmitting unit (16) and the receiving unit (18) being made possible by means of the heating coil (8),
    characterized in that
    a movement sensor is arranged on the installation device (12) and is in signal-transmitting connection with the transmitting unit (16)
    and/or
    an operating element is arranged on the inductive cooking hob (4) and is in signal-transmitting connection with the receiving unit (18) of the cooking hob controller (10)
    and/or
    an operating element is arranged on a third-party device and is in signal-transmitting connection with the receiving unit (18) of the cooking hob controller (10),
    the system (2) being configured and designed to produce the alarm signal by means of the movement sensor on the installation device (12) and/or by means of the operating element on the inductive cooking hob (4) and/or by means of the operating element on a third-party device.
  2. System (2) according to claim 1, characterized in that the transmitting unit (16) or the transmitting unit and the measuring unit can be supplied with operating energy in the case of a voltage induced by means of the heating coil (8) in the induction coil (14) of the installation device (12) installed on the hot plate (6) assigned to this heating coil (8).
  3. System (2) according to either claim 1 or claim 2, wherein the heating coil (8) can be controlled in the ready mode by means of the cooking hob controller (10) such that a transmission of an operating energy from the inductive cooking hob (4) to the installation device (12), which is installed on the hot plate (6) assigned to this heating coil (8), is made possible by means of the heating coil (8).
  4. System (2) according to any of claims 1 to 3, wherein the inductive cooking hob (4) is automatically transferable from the ready mode into the operating mode by means of the cooking hob controller (10) and on the basis of a response signal (20) received in the ready mode by means of the receiving unit (18).
  5. Method for operating a system (2) according to claims 1 to 4, the heating coil (8) not being controlled by means of the cooking hob controller (10) in a standby mode of the inductive cooking hob (4) and being controlled with a transmitting unit (16) in an operating mode of the inductive cooking hob (4) for heating an installation device (12) installed on the hot plate (6),
    the inductive cooking hob (4) being additionally operated in a ready mode by means of the cooking hob controller (10), the inductive cooking hob (4) being transferred from the standby mode into the ready mode by means of an alarm signal received by the receiving unit (18) of the cooking hob controller (10), and the heating coil (8) being controlled in the ready mode by means of the cooking hob controller (10) such that heating of the installation device (12) effective for a preparation process is prevented, and signal transmission between the transmitting unit (16) and the receiving unit (18) is made possible by means of the heating coil (8),
    characterized in that
    the alarm signal is produced by means of
    a movement sensor arranged on the installation device (12) and in signal-transmitting connection with the transmitting unit (16)
    and/or
    by actuating an operating element arranged on the inductive cooking hob (4) and in signal-transmitting connection with the receiving unit (18) of the cooking hob controller (10)
    and/or
    by actuating an operating element arranged on a third-party device and in signal-transmitting connection with the receiving unit (18) of the cooking hob controller (10).
  6. Method according to claim 5, characterized in that the heating coil (8) is controlled in ready mode by means of the cooking hob controller (10) such that a transmission of an operating energy from the inductive cooking hob (4) to the installation device (12), which is installed on the hot plate (6) assigned to this heating coil (8), is made possible by means of the heating coil (8).
  7. Method according to any of claims 5 to 6, characterized in that an electrical power with which the cooking hob controller (10) controls the heating coil (8) in the ready mode has an average value of less than or equal to 30 W, preferably less than or equal to 15 W.
  8. Method according to any of claims 5 to 7, characterized in that an electrical power with which the cooking hob controller (10) controls the heating coil (8) in the ready mode has a pause/power ratio of greater than or equal to 1000:1.
  9. Method according to any of claims 5 to 8, characterized in that the automatic assignment of at least one installation device (12) to at least one hot plate (6) of the inductive cooking hob (4) having a plurality of hot plates (6), each of which is inductively heated by means of at least one heating coil (8), is carried out in the ready mode.
  10. Method according to claim 9, characterized in that the cooking hob controller (10) controls the heating coils (8) with an assignment signal and the transmitting unit (16) is supplied with operating energy in the case of a voltage induced, by means of at least one of the heating coils (8), in the induction coil (14) of the installation device (12) installed on the hot plate (6) assigned to this heating coil (8), and the transmitting unit (16) of the installation device (12) transmits, by means of the operating energy, a response signal (20), which identifies the installation device (12) and correlates with the assignment signal induced in the induction coil (14) of the installation device (12) by means of at least one of the heating coils (8) assigned to this hot plate (6), to the receiving unit (18) of the cooking hob controller (10) or a third-party device in signal-transmitting connection with the cooking hob controller, and the response signal (20) is compared, in an evaluation unit (22) of the cooking hob controller (10) or the third-party device, which unit is in signal-transmitting connection with the receiving unit (18), with the assignment signal of the at least one heating coil (8) of this hot plate (6), and, on the basis of this comparison, is assigned to the identified installation device (12) of this hot plate (6).
  11. Method according to claim 9, characterized in that the cooking hob controller controls the heating coils with at least one assignment signal and the measuring unit detects a vibration of the installation device that correlates with the assignment signal induced in the induction coil and the transmitting unit transmits a response signal, which identifies the installation device and correlates with the detected vibration of the installation device, to the receiving unit of the cooking hob controller or a third-party device in signal-transmitting connection with the cooking hob controller, and the response signal is compared, in an evaluation unit of the cooking hob controller or the third-party device, which unit is in signal-transmitting connection with the receiving unit, with the assignment signal of the at least one heating coil of this hot plate, and, on the basis of this comparison, is assigned to the identified installation device of this hot plate.
  12. Method according to any of claims 9 to 11, characterized in that the inductive cooking hob (4) is automatically transferred from the ready mode into the operating mode by means of the cooking hob controller (10) and on the basis of the response signal (20) received in the ready mode by means of the receiving unit (18).
  13. Method according to any of claims 5 to 12, characterized in that the inductive cooking hob is additionally operated in a demonstration mode by means of the cooking hob controller, the inductive cooking hob being transferred into the demonstration mode by means of a switchover signal received by the receiving unit of the cooking hob controller, and the demonstration mode substantially corresponding to the ready mode, but an automatic transfer from the demonstration mode into the operating mode not being possible.
EP20187098.7A 2019-08-14 2020-07-22 Inductive hob, system comprising an inductive hob and a setting device, and method for operating a system Active EP3780906B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019121869.1A DE102019121869A1 (en) 2019-08-14 2019-08-14 Inductive hob, system comprising an inductive hob and an installation device, and method for operating a system

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EP3780906A1 EP3780906A1 (en) 2021-02-17
EP3780906C0 EP3780906C0 (en) 2024-01-24
EP3780906B1 true EP3780906B1 (en) 2024-01-24

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DE (1) DE102019121869A1 (en)
ES (1) ES2972830T3 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014075923A1 (en) * 2012-11-14 2014-05-22 Arcelik Anonim Sirketi A food preparation appliance operated on an induction heating cooktop
PL3001771T3 (en) 2014-09-29 2017-09-29 E.G.O. Elektro-Gerätebau GmbH Method for detecting the identity of a pot on a cooking point of a hob and system of a hob with a pot
KR102506519B1 (en) * 2016-03-28 2023-03-03 엘지전자 주식회사 Smart table
DE102017112945B3 (en) 2017-06-13 2018-10-25 Miele & Cie. Kg Method for operating an inductive cooking system, associated inductive cooking system and hob and cookware for such an inductive cooking system
DE102018119969A1 (en) 2018-08-16 2020-02-20 Miele & Cie. Kg Method for automatically assigning at least one set-up device to at least one hotplate of an inductive hob and system for carrying out the method
DE102018119965A1 (en) 2018-08-16 2020-02-20 Miele & Cie. Kg Method for automatically assigning at least one set-up device to at least one hotplate of an inductive hob and system for carrying out the method
DE102018119953A1 (en) 2018-08-16 2020-02-20 Miele & Cie. Kg Device and method for recognizing a cooking device position of a cooking device on a hob, cooking device with a device and hob with a device

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EP3780906A1 (en) 2021-02-17
EP3780906C0 (en) 2024-01-24
ES2972830T3 (en) 2024-06-17
DE102019121869A1 (en) 2021-02-18

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