EP3927113A1 - Method for operating an inductive system, preferably of an inductive cooking system - Google Patents

Abstract

The invention relates to a method for operating an inductive system (1), preferably an inductive cooking system (1), the inductive system (1) having: an induction device (2), preferably a hob (2), with at least one first induction point ( 21), preferably with at least one first hotplate (21), and with at least one receiver unit (23), and at least one induction device (3), preferably at least one cooking utensil (3), with at least one actuating element (35) and with at least one transmitter unit (38), wherein the actuating element (35) is designed to enable a user to choose between at least two functions of the induction device (2) and/or the induction device (3), the induction device (3) being on the first induction point (21) the induction device (2) is arranged, with at least the following steps:• sending out (100) a first signal from the transmitting unit (38),• receiving (150) the first signal dur ch the receiving unit (22),• evaluation (200) of the received first signal by the induction device (2),• inductive operation (300) of at least the first induction point (21) depending on the evaluation of the received first signal,• transmission (400) a second signal from the transmitting unit (38),• receiving (500) the second signal by the receiving unit (23),• evaluating (550) the received second signal by the induction device (2),• emitting (700a) a third signal from the transmitting unit (38),• wherein the third signal contains information about the selected second function,• receiving (800) the third signal by the receiving unit (22,• evaluating (850) the received third signal by the induction device (2) and• operating (900a) at least the induction device (2) depending on the information of the selected second function of the received third signal.

Description

The invention relates to several methods for operating an inductive system, preferably an inductive cooking system, according to claims 1, 4, 6 and 7, an inductive system for carrying out such methods according to claim 13, an induction device for use in such an inductive system according to the Claim 14 and an induction device for use in such an inductive system according to claim 15.

The trend in domestic cooking is always going towards making the execution of the cooking processes easier, more comfortable and / or safer for the user with regard to the desired cooking result. For this purpose it has been known for a long time to use temperature sensors in the hob in order to be able to determine residual heat there for each hob after a cooking process has been carried out and to be able to display it to the user as a warning.

A cooking process or a cooking process can also be supported in that complete automatic programs or assistance functions are made available to the user, which are intended to relieve the user of part of the execution or even the complete execution of the cooking process. A cooking process can also be supported, for example, by the hob and / or by a mobile device, in that the cooking process is followed there, displayed to the user and the next actions in the recipe sequence are displayed or appropriate instructions are given to the user.

The hobs should also visually disappear further and further from the kitchen. This also includes making the control elements of the hobs increasingly inconspicuous or making them disappear completely. This can lead to the controls and the display elements of the hobs being relocated to the cookware. It may therefore be necessary or at least desirable for information to be able to be exchanged between the cookware and the hob. This can include the transmission of instructions as well as of measured quantities.

It should be noted that communication between cookware and hob or hob or the like via radio transmission, e.g. using transponder technology, can represent a remote effect, ie control and / or regulation of a device by a command that is out of sight of a device can be made. This means that communication can take place between the participants and, associated therewith, mutual or at least one-sided influencing, even if they are mutually exclusive are not in their intended use. In other words, for example, the hob or the hotplate could also be operated using the cookware, although the cookware is not at all on the hob or on the hotplate. Since this can endanger the safety of the user, such remote actions in the household must be prevented in accordance with the DIN EN 60335-01 (VDE 0700-1) standard. The systems and devices described above could therefore not conform to standards, which can prevent their use.

• Aussenden eines ersten Signals von der Sendeeinheit des Kochgeschirrs bei Betätigen des Betätigungselements des Kochgeschirrs durch einen Benutzer,
• Empfangen des ersten Signals durch die Empfangseinheit des Kochfelds,
• Auswerten des empfangenen ersten Signals durch das Kochfeld,
• induktives Betreiben wenigstens der ersten Kochstelle des Kochfelds mit einer ersten vorbestimmten Leistung für einen vorbestimmten Zeitraum in Abhängigkeit der Auswertung des empfangenen ersten Signals,
• Aussenden eines zweiten Signals von der Sendeeinheit des Kochgeschirrs bei induktiver Versorgung des Kochgeschirrs durch die erste Kochstelle,
• Empfangen des zweiten Signals durch die Empfangseinheit des Kochfelds, und
• Auswerten des empfangenen zweiten Signals durch das Kochfeld.

The DE 10 2017 112 945 B3 therefore describes a method for operating an inductive cooking system, the inductive cooking system having a hob with at least one first hob and with at least one receiving unit and at least one cooking utensil with at least one actuating element and with at least one transmitting unit, the cooking utensils on the first hob of the hob is arranged, with at least the steps:

• Sending a first signal from the transmitter unit of the cookware when the operating element of the cookware is actuated by a user,
• Receipt of the first signal by the receiving unit of the hob,
• Evaluation of the received first signal by the hob,
• inductive operation of at least the first hotplate of the hob with a first predetermined power for a predetermined period of time as a function of the evaluation of the received first signal,
• Sending a second signal from the transmitter unit of the cookware when the cookware is supplied inductively by the first hotplate,
• Receiving the second signal by the receiving unit of the hob, and
• Evaluation of the received second signal by the hob.

To the DE 10 2017 112 945 B3 is based on the idea that in this way the user only has to actuate the actuating element of the cookware once in order to initialize the entire further sequence of the method. This allows the method of the DE 10 2017 112 945 B3 or a corresponding cookware get along with only one actuating element to start and carry out the method.

This is possible because the user actuates the actuating element of the cookware once to pair the hob or its hob and cookware is triggered, which leads to a connection between the hob and cookware. In other words, the one-time actuation of the actuating element of the cookware by the user triggers a signal to be sent back from the hob to the cookware, which triggers a reaction on the part of the cookware that leads to a successful pairing of cookware and hob or hob. This successful pairing can be used by the hob as an occasion, for example to carry out an automated cooking or cooking process for this hotplate. As a result, this automated cooking or boiling process can be triggered by the user by actuating the actuating element of the cookware once.

The method of the DE 10 2017 112 945 B3 This can be implemented in accordance with the standard while avoiding a remote effect, that an inductive power is used as the transmitted signal of the pairing on the part of the hotplate, the reception of which by the cookware only triggers its transmission of the second signal. Because the inductive power of the hotplate can only be absorbed by the cookware with direct contact or with a maximum distance of approx. 5 cm between the hotplate or its coil and the cookware, the pairing can only be successful if this Framework condition is met. Otherwise there will be no pairing and the automated cooking or cooking process will not start.

The invention thus poses the problem of the possibilities of the method of DE 10 2017 112 945 B3 to expand. At the very least, alternatives to the DE 10 2017 112 945 B3 be created.

According to the invention, this problem is solved by a method with the features of claim 1, by a method with the features of claim 4, by a method with the features of claim 6, by a method with the features of claim 7, by an inductive system with the Features of claim 13, achieved by an induction device with the features of claim 14 and by an induction device with the features of claim 15. Advantageous refinements and developments of the invention emerge from the following subclaims.

• eine Induktionsvorrichtung, vorzugweise ein Kochfeld, mit wenigstens einer ersten Induktionsstelle, vorzugweise mit wenigstens einer ersten Kochstelle, und mit wenigstens einer Empfangseinheit, und
• wenigstens ein Induktionsgerät, vorzugsweise wenigstens ein Kochgeschirr, mit wenigstens einem Betätigungselement und mit wenigstens einer Sendeeinheit,

wobei das Betätigungselement ausgebildet ist, einem Benutzer eine Auswahl zwischen wenigstens zwei Funktionen der Induktionsvorrichtung und bzw. oder des Induktionsgeräts zu ermöglichen, wobei das Induktionsgerät auf der ersten Induktionsstelle der Induktionsvorrichtung angeordnet ist, mit wenigstens den Schritten:

• Aussenden eines ersten Signals von der Sendeeinheit des Induktionsgeräts bei einem ersten Betätigen des Betätigungselements des Induktionsgeräts zur Auswahl der ersten Funktion durch einen Benutzer,
• Empfangen des ersten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen ersten Signals durch die Induktionsvorrichtung,
• induktives Betreiben wenigstens der ersten Induktionsstelle der Induktionsvorrichtung mit einer ersten vorbestimmten Leistung für einen vorbestimmten Zeitraum in Abhängigkeit der Auswertung des empfangenen ersten Signals,
• Aussenden eines zweiten Signals von der Sendeeinheit des Induktionsgeräts bei induktiver Versorgung des Induktionsgeräts durch die erste Induktionsstelle,
• Empfangen des zweiten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen zweiten Signals durch die Induktionsvorrichtung,
• Aussenden eines dritten Signals von der Sendeeinheit des Induktionsgeräts bei einem zweiten Betätigen des Betätigungselements des Induktionsgeräts zur Auswahl der zweiten Funktion durch den Benutzer,

wobei das dritte Signal Informationen der ausgewählten zweiten Funktion enthält,

• Empfangen des dritten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen dritten Signals durch die Induktionsvorrichtung und
• Betreiben wenigstens der Induktionsvorrichtung in Abhängigkeit der Informationen der ausgewählten zweiten Funktion des empfangenen dritten Signals.

The invention thus relates to a method for operating an inductive system, preferably an inductive cooking system, the inductive system having:

• an induction device, preferably a hob, with at least one first induction point, preferably with at least one first hotplate, and with at least one receiving unit, and
• at least one induction device, preferably at least one cookware, with at least one actuating element and with at least one transmitter unit,

wherein the actuating element is designed to enable a user to choose between at least two functions of the induction device and / or the induction device, the induction device being arranged on the first induction point of the induction device, with at least the following steps:

• Sending a first signal from the transmission unit of the induction device when the actuating element of the induction device is actuated for the first time to select the first function by a user,
• Receiving the first signal by the receiving unit of the induction device,
• Evaluation of the received first signal by the induction device,
• inductive operation of at least the first induction point of the induction device with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal,
• Sending a second signal from the transmitter unit of the induction device when the induction device is supplied inductively by the first induction point,
• Receiving the second signal by the receiving unit of the induction device,
• Evaluation of the received second signal by the induction device,
• Sending a third signal from the transmission unit of the induction device when the actuating element of the induction device is actuated a second time by the user to select the second function,

wherein the third signal contains information of the selected second function,

• Receiving the third signal by the receiving unit of the induction device,
• Evaluation of the received third signal by the induction device and
• Operating at least the induction device as a function of the information of the selected second function of the received third signal.

The present invention is generally based on the knowledge that, according to the method of the initially described DE 10 2017 112 945 B3 only a pairing between the hob and cookware of an inductive cooking system considered there can take place, which can include an activation of the hob and a selection of the first hotplate at the same time. In this way, a prerequisite can be created that a user can, if necessary, make an additional setting of the first hotplate, for example on an operating element of the hob for the cookware. This can, for example, be the selection of a power level in order to operate the cookware on the first hotplate of the hob. However, this is different from the method of the DE 10 2017 112 945 B3 not included and previously had to be carried out by the user in addition and in particular on the control element of the hob.

According to the present invention, the user should be given the option, in addition to the functions of the method of the DE 10 2017 112 945 B3 such a selection of a function of at least the first hotplate of the hob, such as, for example, the selection of a power level of the first hotplate of the hob, can also be made on the cookware. Alternatively, this can be done using various methods, as will be described in more detail below.

In any case, for example, not only can the user select a power level for the first hotplate on the cookware, but it can also be possible for the user to select a cooking program for the cookware, for example, which is then taken from the cooker can be executed independently or at least started. Such cookware can also be referred to as functional cookware and implemented, for example, as a functional pot, a functional pan and the like. In this way, parameters for operating the cookware on the first hotplate of the hob, such as a temperature, a duration and the like, can also be selected by the user.

The user has at least two functions to choose from on the cookware, between which the user can choose by means of the actuating element of the cookware. These different functions can be, for example, a roasting and a cooking program, different power levels of a cooking program and / or different durations of a cooking program. This can also be switching on / off or initializing a pairing and a single function. As will be explained in more detail below, the initialization of the pairing of the method of the DE 10 2017 112 945 B3 be available as a separate function on the cookware or be included as a sub-function in the selectable more complex functions described above, for example for selecting a temperature.

The user can select between at least two functions on the cookware by means of at least one actuating element of the cookware, which for example is a rotary knob, a push button switch, a toggle switch, a button, a touch sensor and the like or can have at least two such input options. Correspondingly, the actuating element itself can enable the selection between at least two functions or have at least two functional elements which enable at least one function to be selected in each case. Initializing the pairing of the procedure of the DE 10 2017 112 945 B3 as a separate function can also be carried out by the actuating element or by a further functional element of the actuating element of the cookware.

As an extension of the DE 10 2017 112 945 B3 the present invention can be applied not only to inductive cooking systems with cookware and hob, but to inductive systems with induction device and induction device in general. One such general inductive system includes the inductive cooking system of the DE 10 2017 112 945 B3 , but also inductive systems in which, for example, an induction device can be inductively electrically charged by the induction device. In this case, the functions that can be selected can be, for example, the intensity and / or the duration of the inductive charging process. Such a charging process can be carried out, for example, in cookware with an electrically chargeable energy store by means of a charging coil as the first induction point on a kitchen table, on a kitchen unit, in a cookware cabinet, in a cookware drawer and the like. Such an inductive system can also serve to keep food warm, for example in a cookware or the like as an induction device on a kitchen table, on a kitchen unit or the like as the first induction point of the induction device. In this case, the functions that can be selected can be, for example, the intensity or the temperature and / or the duration of the inductive warming process.

If one now specifically considers the method according to the invention described above, the method of pairing the DE 10 2017 112 945 B3 carried out as described there, the initialization of the pairing being the first function selected by the user and as in the DE 10 2017 112 945 B3 is initialized as described. A further third signal, which contains information about the selected second function, such as a power level selected by the user, is then sent from the induction device to the induction device, so that the first induction point of the induction device can be operated with the power level selected by the user on the induction device would.

This can save the user having to use an operating element of the induction device for this selection, for example, which could represent additional effort for the user, since the user would have to operate the induction device himself in addition to the induction device. Instead, according to the invention an operation of the induction device with regard to the selected function also take place on the part of the induction device, which is to be operated by the user anyway in order to pair the DE 10 2017 112 945 B3 to be able to initialize.

Carrying out this in accordance with the method described above by means of an additional third signal can be advantageous in that the method of DE 10 2017 112 945 B3 only needs to be expanded to include the selection of the function and the corresponding information transmitted by means of an additional third signal. In other words, the method of the DE 10 2017 112 945 B3 remain in principle and will only be supplemented, which can keep the implementation effort low.

According to the present method, the transmission of the third signal from the transmission unit of the induction device takes place directly through the second actuation of the actuation element of the induction device to select the second function by the user. In this way, there is no need to store electrical energy for the transmission of the third signal on the part of the induction device. Rather, electrical energy directly absorbed at this point in time can be used directly or generated by the second actuation of the actuating element. It is also not necessary to store the information of the selected second function in this way. Correspondingly, both the expense of an electrical energy storage device and an electronic data storage device can be avoided and the corresponding costs or the corresponding installation space on the part of the induction device can be saved as a result.

According to one aspect of the invention, the actuation element has at least a first functional element for the selection of the first function by the user and a second functional element for the selection of the second function by the user, the first actuation of the actuation element of the induction device taking place by means of the first functional element of the actuation element and wherein the second functional element of the actuating element is not used at least until the first actuation of the actuating element of the induction device, preferably until the electrical energy is picked up for the transmission of the second signal from the transmission unit of the induction device from the first predetermined inductive power of the first induction point of the induction device can.

In other words, at the beginning of the use of the inductive system by the induction device, the user only has to initialize the pairing according to the method of DE 10 2017 112 945 B3 available as a first function by means of the first functional element of the actuating element. An operation of the second functional element of the actuating element to select the second function by the user cannot in this state lead to an actuation of the second functional element of the actuating element to lead. Only when the pairing according to the procedure of DE 10 2017 112 945 B3 was initiated by the user, the second functional element of the actuating element can be activated by the induction device.

• Aufnehmen der elektrischen Energie für das Aussenden des zweiten Signals von der Sendeeinheit des Induktionsgeräts aus der ersten vorbestimmten induktiven Leistung der ersten Induktionsstelle der Induktionsvorrichtung, und
• Aktivieren wenigstens des zweiten Funktionselements des Betätigungselements.

According to a further aspect of the invention, the method has the further steps:

• Receiving the electrical energy for the transmission of the second signal from the transmission unit of the induction device from the first predetermined inductive power of the first induction point of the induction device, and
• Activate at least the second functional element of the actuating element.

The second functional element of the actuating element can thus be operated by means of the electrical energy which can be transmitted from the induction device to the induction device. At least the actuation of the second functional element of the actuation element can be made possible by means of this electrical energy. The second functional element of the actuating element can also be illuminated, for example, by means of the electrical energy taken in, in order to inform the user that the second functional element of the actuating element can now be used.

• eine Induktionsvorrichtung, vorzugweise ein Kochfeld, mit wenigstens einer ersten Induktionsstelle, vorzugweise mit wenigstens einer ersten Kochstelle, und mit wenigstens einer Empfangseinheit, und
• wenigstens ein Induktionsgerät, vorzugsweise wenigstens ein Kochgeschirr, mit wenigstens einem Betätigungselement und mit wenigstens einer Sendeeinheit,

wobei das Betätigungselement ausgebildet ist, einem Benutzer eine Auswahl zwischen wenigstens zwei Funktionen der Induktionsvorrichtung und bzw. oder des Induktionsgeräts zu ermöglichen, wobei das Induktionsgerät auf der ersten Induktionsstelle der Induktionsvorrichtung angeordnet ist, mit wenigstens den Schritten:

• Aussenden eines ersten Signals von der Sendeeinheit des Induktionsgeräts bei einem ersten Betätigen des Betätigungselements des Induktionsgeräts zur Auswahl der ersten Funktion durch einen Benutzer,
• Empfangen des ersten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen ersten Signals durch die Induktionsvorrichtung,
• induktives Betreiben wenigstens der ersten Induktionsstelle der Induktionsvorrichtung mit einer ersten vorbestimmten Leistung für einen vorbestimmten Zeitraum in Abhängigkeit der Auswertung des empfangenen ersten Signals,
• Aussenden eines zweiten Signals von der Sendeeinheit des Induktionsgeräts bei induktiver Versorgung des Induktionsgeräts durch die erste Induktionsstelle,
• Empfangen des zweiten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen zweiten Signals durch die Induktionsvorrichtung,
• zeitversetztes Aussenden eines dritten Signals von der Sendeeinheit des Induktionsgeräts in Reaktion auf ein zweites Betätigen des Betätigungselements des Induktionsgeräts zur Auswahl der zweiten Funktion durch den Benutzer,

wobei das dritte Signal Informationen der ausgewählten zweiten Funktion enthält, wobei das zweite Betätigen des Betätigungselements des Induktionsgeräts nach dem ersten Betätigen des Betätigungselements des Induktionsgeräts erfolgt und die Informationen der ausgewählten zweiten Funktion bis zum zeitversetzten Aussenden des dritten Signals von der Sendeeinheit des Induktionsgeräts gespeichert werden,

• Empfangen des dritten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen dritten Signals durch die Induktionsvorrichtung und
• Betreiben wenigstens der Induktionsvorrichtung in Abhängigkeit der Informationen der ausgewählten zweiten Funktion des empfangenen dritten Signals.

The present invention also relates to a method for operating an inductive system, preferably an inductive cooking system, the inductive system comprising:

• an induction device, preferably a hob, with at least one first induction point, preferably with at least one first hotplate, and with at least one receiving unit, and
• at least one induction device, preferably at least one cookware, with at least one actuating element and with at least one transmitter unit,

wherein the actuating element is designed to enable a user to choose between at least two functions of the induction device and / or the induction device, the induction device being arranged on the first induction point of the induction device, with at least the following steps:

• Sending a first signal from the transmission unit of the induction device when the actuating element of the induction device is actuated for the first time to select the first function by a user,
• Receiving the first signal by the receiving unit of the induction device,
• Evaluation of the received first signal by the induction device,
• inductive operation of at least the first induction point of the induction device with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal,
• Sending a second signal from the transmitter unit of the induction device when the induction device is supplied inductively by the first induction point,
• Receiving the second signal by the receiving unit of the induction device,
• Evaluation of the received second signal by the induction device,
• time-delayed transmission of a third signal from the transmission unit of the induction device in response to a second actuation of the actuation element of the induction device for the selection of the second function by the user,

wherein the third signal contains information of the selected second function, the second actuation of the actuation element of the induction device takes place after the first actuation of the actuation element of the induction device and the information of the selected second function is stored by the transmission unit of the induction device until the time-shifted transmission of the third signal,

• Receiving the third signal by the receiving unit of the induction device,
• Evaluation of the received third signal by the induction device and
• Operating at least the induction device as a function of the information of the selected second function of the received third signal.

This method according to the invention differs from the method according to the invention described above in that in this case the second actuation of the actuating element leads to the selection of the second function by the user, but the transmission of the information of the selected second function as a third signal by the induction device is delayed he follows. The information of the selected second function can be temporarily stored for this purpose. This can enable the user to perform the second actuation of the actuating element regardless of how far the pairing according to the method of the DE 10 2017 112 945 B3 has already been carried out.

In other words, for example, activation of a second functional element of the actuating element for selection of the second function by the user does not have to be delayed, as described with regard to the above method according to the invention. Rather, the second functional element of the actuating element can be available to the user parallel to the first functional element of the actuating element. Should the user make the selection of the second function by pressing the actuating element a second time, before the pairing of the DE 10 2017 112 945 B3 has progressed sufficiently, the selection of the second function by the user can be buffered by the induction device until the third signal can be transmitted by means of the electrical energy taken up.

According to one aspect of the invention, the predetermined period of inductive operation of at least the first induction point of the induction device with the first predetermined power is sufficiently long to allow the transmission of the second signal from the transmission unit of the induction device and the time-shifted transmission of the third signal from the transmission unit of the induction device enable. In this way it can be ensured that the second and the third signal can be transmitted by the induction device by means of the electrical energy which the induction device can receive from the induction device.

• eine Induktionsvorrichtung, vorzugweise ein Kochfeld, mit wenigstens einer ersten Induktionsstelle, vorzugweise mit wenigstens einer ersten Kochstelle, und mit wenigstens einer Empfangseinheit, und
• wenigstens ein Induktionsgerät, vorzugsweise wenigstens ein Kochgeschirr, mit wenigstens einem Betätigungselement und mit wenigstens einer Sendeeinheit,

wobei das Betätigungselement ausgebildet ist, einem Benutzer eine Auswahl zwischen wenigstens zwei Funktionen der Induktionsvorrichtung und bzw. oder des Induktionsgeräts zu ermöglichen, wobei das Induktionsgerät auf der ersten Induktionsstelle der Induktionsvorrichtung angeordnet ist, mit wenigstens den Schritten:

• Aussenden eines ersten Signals von der Sendeeinheit des Induktionsgeräts bei einem ersten Betätigen des Betätigungselements des Induktionsgeräts zur Auswahl der ersten Funktion durch einen Benutzer,

wobei das erste Signal Informationen der ausgewählten ersten Funktion enthält,

• Empfangen des ersten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen ersten Signals durch die Induktionsvorrichtung,
• induktives Betreiben wenigstens der ersten Induktionsstelle der Induktionsvorrichtung mit einer ersten vorbestimmten Leistung für einen vorbestimmten Zeitraum in Abhängigkeit der Auswertung des empfangenen ersten Signals,
• Aussenden eines zweiten Signals von der Sendeeinheit des Induktionsgeräts bei induktiver Versorgung des Induktionsgeräts durch die erste Induktionsstelle,
• Empfangen des zweiten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen zweiten Signals durch die Induktionsvorrichtung und
• Betreiben wenigstens der Induktionsvorrichtung in Abhängigkeit der Informationen der ausgewählten ersten Funktion des empfangenen ersten Signals.

The present invention also relates to a method for operating an inductive system, preferably an inductive cooking system, the inductive system comprising:

• an induction device, preferably a hob, with at least one first induction point, preferably with at least one first hotplate, and with at least one receiving unit, and
• at least one induction device, preferably at least one cookware, with at least one actuating element and with at least one transmitter unit,

wherein the actuating element is designed to enable a user to choose between at least two functions of the induction device and / or the induction device, the induction device being arranged on the first induction point of the induction device, with at least the following steps:

• Sending a first signal from the transmission unit of the induction device when the actuating element of the induction device is actuated for the first time to select the first function by a user,

wherein the first signal contains information of the selected first function,

• Receiving the first signal by the receiving unit of the induction device,
• Evaluation of the received first signal by the induction device,
• inductive operation of at least the first induction point of the induction device with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal,
• Sending a second signal from the transmitter unit of the induction device when the induction device is supplied inductively by the first induction point,
• Receiving the second signal by the receiving unit of the induction device,
• Evaluation of the received second signal by the induction device and
• Operating at least the induction device as a function of the information of the selected first function of the received first signal.

According to this inventive method, the information of the selected first function is transmitted directly with the first signal from the induction device to the induction device together with the information obtained from the method of the DE 10 2017 112 945 B3 are known. In this way, it is possible to dispense with the transmission of the information of the selected function by means of a further third signal, which can reduce the cost of implementing this method according to the invention compared to the two methods according to the invention described above.

The user can also perform pairing in accordance with the method of FIG DE 10 2017 112 945 B3 initialize and at the same time select the first function. This can be made possible by pairing both selectable functions in addition to their different functions in accordance with the method of DE 10 2017 112 945 B3 initialize.

Conversely, however, this requires that more information, namely the information of the selected first function in addition to the information for initializing the pairing according to the method of the induction device, is already sent out with the first signal DE 10 2017 112 945 B3 , transmitted to the induction device than are required for pairing only. The higher electrical energy required for this to send out the first signal on the part of the induction device can for example be provided by an electrical energy store of the induction device, which can preferably be recharged by the induction device in the later course of the method according to the invention. However, this can require the use of a rechargeable electrical energy store in the induction device, which can lead to additional manufacturing costs and / or require additional installation space on the part of the induction device. Additionally or alternatively, the electrical energy to the Emission of the first signal can be generated by the first actuation of the actuating element, as will be described in more detail below.

• eine Induktionsvorrichtung, vorzugweise ein Kochfeld, mit wenigstens einer ersten Induktionsstelle, vorzugweise mit wenigstens einer ersten Kochstelle, und mit wenigstens einer Empfangseinheit, und
• wenigstens ein Induktionsgerät, vorzugsweise wenigstens ein Kochgeschirr, mit wenigstens einem Betätigungselement und mit wenigstens einer Sendeeinheit,

wobei das Betätigungselement ausgebildet ist, einem Benutzer eine Auswahl zwischen wenigstens zwei Funktionen der Induktionsvorrichtung und bzw. oder des Induktionsgeräts zu ermöglichen, wobei das Induktionsgerät auf der ersten Induktionsstelle der Induktionsvorrichtung angeordnet ist, mit wenigstens den Schritten:

• Aussenden eines ersten Signals von der Sendeeinheit des Induktionsgeräts bei einem ersten Betätigen des Betätigungselements des Induktionsgeräts zur Auswahl der ersten Funktion durch einen Benutzer,
• Empfangen des ersten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen ersten Signals durch die Induktionsvorrichtung,
• induktives Betreiben wenigstens der ersten Induktionsstelle der Induktionsvorrichtung mit einer ersten vorbestimmten Leistung für einen vorbestimmten Zeitraum in Abhängigkeit der Auswertung des empfangenen ersten Signals,
• Aussenden eines zweiten Signals von der Sendeeinheit des Induktionsgeräts bei induktiver Versorgung des Induktionsgeräts durch die erste Induktionsstelle,

wobei das zweite Signal Informationen der ausgewählten ersten Funktion enthält,

• Empfangen des zweiten Signals durch die Empfangseinheit der Induktionsvorrichtung,
• Auswerten des empfangenen zweiten Signals durch die Induktionsvorrichtung und
• Betreiben wenigstens der Induktionsvorrichtung in Abhängigkeit der Informationen der ausgewählten ersten Funktion des empfangenen zweiten Signals.

The present invention also relates to a method for operating an inductive system, preferably an inductive cooking system, the inductive system comprising:

• an induction device, preferably a hob, with at least one first induction point, preferably with at least one first hotplate, and with at least one receiving unit, and
• at least one induction device, preferably at least one cookware, with at least one actuating element and with at least one transmitter unit,

wherein the actuating element is designed to enable a user to choose between at least two functions of the induction device and / or the induction device, the induction device being arranged on the first induction point of the induction device, with at least the following steps:

• Sending a first signal from the transmission unit of the induction device when the actuating element of the induction device is actuated for the first time to select the first function by a user,
• Receiving the first signal by the receiving unit of the induction device,
• Evaluation of the received first signal by the induction device,
• inductive operation of at least the first induction point of the induction device with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal,
• Sending a second signal from the transmitter unit of the induction device when the induction device is supplied inductively by the first induction point,

wherein the second signal contains information of the selected first function,

• Receiving the second signal by the receiving unit of the induction device,
• Evaluation of the received second signal by the induction device and
• Operating at least the induction device as a function of the information of the selected first function of the received second signal.

According to this method according to the invention, the information of the selected first function is transmitted from the induction device to the induction device by means of the second signal. In this way, the transmission of the first signal for the sole purpose of initializing the pairing according to the method of DE 10 2017 112 945 B3 as is known there, for example, by generating energy through the first actuation of the actuating element itself, as will be described in more detail below. The possibly required higher electrical energy to transmit the second signal with the information of the selected first function can from the induction device to the induction device as from the method of DE 10 2017 112 945 B3 are made available so that the induction device dispenses with a, preferably rechargeable, electrical energy storage device and the corresponding costs and / or the corresponding installation space can be saved as a result.

According to one aspect of the invention, the information of the selected first function is stored after the first actuation of the actuating element of the induction device until the transmission of a second signal from the transmission unit of the induction device. In this way, the second actuation of the actuation element by the user to select the second function can also take place before the second signal is sent out and the corresponding information can be temporarily stored as a second signal until it is sent out. This can increase the ease of use for the user.

• induktives Betreiben der ersten Induktionsstelle der Induktionsvorrichtung mit einer zweiten vorbestimmten Leistung,

wobei die zweite vorbestimmte Leistung größer als die erste vorbestimmte Leistung ist.According to one aspect of the invention, operating the induction device comprises:

• inductive operation of the first induction point of the induction device with a second predetermined power,

wherein the second predetermined power is greater than the first predetermined power.

As a result, in response to the successful pairing of induction device and induction device, an automated process, such as an automated cooking or cooking process for an inductive cooking system, can be started for this hotplate, which has a correspondingly stronger inductive power than the pairing. This applies accordingly, for example, to an inductive warming or charging process.

According to a further aspect of the invention, the induction device also has at least one electrical generator which is designed to be actuated by the user by means of the actuating element, the electrical generator also being designed to generate the electrical energy for sending the first signal through its actuation , preferably and for the (time-shifted) transmission of the third signal, to be generated by the transmission unit of the induction device.

As a result, when the user actuates the actuating element, not only can a signal be sent, but the electrical energy required for this can be generated at the same time, so that an electrical energy store of the induction device can be dispensed with.

According to a further aspect of the invention, the induction device furthermore has at least one conductor loop, preferably a plurality of conductor loops, which is designed to receive the first predetermined inductive power from the first induction point of the induction device, the conductor loop also being designed by receiving the first predetermined inductive power to generate the electrical energy for the transmission of the second signal from the transmission unit of the induction device.

In this way, the electrical energy that is required for sending out at least the second signal and, if necessary, additionally for sending out the third signal, can be transferred to the induction device, so that this electrical energy does not come from the induction device, e.g. via electrical energy storage devices must be made available.

The conductor loop or the conductor loops can be arranged in the body of the induction device or on the outside of the body of the induction device, ie in the edge area of the base of the induction device, near the induction device and facing the first induction point in order to obtain inductive power from there as well as possible and without loss receive. The magnetic alternating field of the coil of the first induction point can induce a current in the conductor loop of the induction device. In this way, the conductor loop of the induction device can be used for a continuous energy supply, in particular for the transmitter unit in the case of an existing magnetic alternating field.

The conductor loop or the conductor loops can be designed to be comparatively small, in particular in the case of cookware as an induction device. If there are several conductor loops, they have comparatively few turns, i.e. preferably less than 20 turns, particularly preferably between 5 and 10 turns. The wire length is preferably less than 200 cm, particularly preferably less than 150 cm, very particularly preferably between 80 cm and 120 cm. The diameter of the conductor loop or the conductor loops is preferably 70 mm.

According to a further aspect of the invention, the induction device is designed to be switched from an idle mode to an operating mode by receiving the first signal.

In this way, it can be avoided that the induction device has to be put into the operating mode by the user, which would represent additional effort. Furthermore, a rest mode can be adopted, which usually leads to a lower consumption of electrical energy, so that the induction device can be operated as energy-efficiently as possible right up to the start of the method according to the invention.

• Hinweisen des Benutzers seitens der Induktionsvorrichtung und bzw. oder seitens des Induktionsgeräts auf ein erfolgreiches Pairing zwischen der ersten Induktionsstelle der Induktionsvorrichtung und dem Induktionsgerät.

According to a further aspect of the invention, the method further comprises the step:

• Advising the user on the part of the induction device and / or on the part of the induction device on a successful pairing between the first induction point of the induction device and the induction device.

This can take place, for example, in that an illumination or a representation of the actuating element is changed accordingly. If the actuating element has at least two functional elements, the first functional element of the actuating element, for example as an on / off switch, only for initializing the pairing according to the method of DE 10 2017 112 945 B3 and the second functional element of the actuating element is used to select the first function by the user, the second functional element of the actuating element can only be illuminated or faded in when the first functional element of the actuating element is actuated for the first time and / or there is sufficient electrical energy from the Induction device can be included in order to also detect the first actuation of the first functional element of the actuating element.

According to a further aspect of the invention, the predetermined period of inductive operation of at least the first induction point of the hob with the first predetermined power is sufficiently long to enable the transmission of the signal from the transmission unit of the induction device which contains the information of the selected function. In this way it can be ensured that the respective signal can be transmitted from the induction device by means of the electrical energy which the induction device can receive from the induction device.

• wenigstens einer Induktionsvorrichtung, vorzugsweise mit wenigstens einem Kochfeld, mit
  • ∘ wenigstens einer ersten Induktionsstelle, vorzugsweise wenigstens einer ersten Kochstelle, und mit
  • ∘ wenigstens einer Empfangseinheit, und mit
• wenigstens einem Induktionsgerät, vorzugsweise wenigstens einem Kochgeschirr, mit
  • ∘ wenigstens einem Betätigungselement und mit
  • ∘ wenigstens einer Sendeeinheit,
  wobei die Induktionsvorrichtung und das Induktionsgerät ausgebildet sind, ein Verfahren wie zuvor beschrieben auszuführen.

The present invention also relates to an inductive system, preferably an inductive cooking system with

• at least one induction device, preferably with at least one hob, with
  • ∘ at least one first induction point, preferably at least one first cooking point, and with
  • ∘ at least one receiving unit, and with
• at least one induction device, preferably at least one cookware
  • ∘ at least one actuator and with
  • ∘ at least one transmitter unit,
  wherein the induction device and the induction device are designed to carry out a method as described above.

In this way, an inductive system and in particular an inductive cooking system can be provided, by means of which the method described above can be implemented and used.

• wenigstens einer ersten Induktionsstelle, vorzugweise wenigstens einer ersten Kochstelle, und mit
• wenigstens einer Empfangseinheit.

The present invention also relates to an induction device, preferably a hob, for use in an inductive system, preferably in an inductive cooking system, as previously described with

• at least one first induction point, preferably at least one first cooking point, and with
• at least one receiving unit.

In this way, an induction device and in particular a hob can be provided in order to implement an inductive system and in particular an inductive cooking system as described above.

• wenigstens einem Betätigungselement, welches ausgebildet ist, einem Benutzer eine Auswahl zwischen wenigstens zwei Funktionen der Induktionsvorrichtung und bzw. oder des Induktionsgeräts zu ermöglichen, und mit
• wenigstens einer Sendeeinheit,

wobei das Betätigungselement vorzugsweise wenigstens

• ein erstes Funktionselement zur Auswahl der ersten Funktion durch den Benutzer und
• ein zweites Funktionselement zur Auswahl der zweiten Funktion durch den Benutzer aufweist.

The present invention also relates to an induction device, preferably a cookware, for use in an inductive system, preferably in an inductive cooking system, as previously described with

• at least one actuating element which is designed to enable a user to choose between at least two functions of the induction device and / or the induction device, and with
• at least one transmitter unit,

wherein the actuating element is preferably at least

• a first function element for the selection of the first function by the user and
• a second function element for the selection of the second function by the user having.

In this way, an induction device and in particular a cookware can be provided in order to implement an inductive system and in particular an inductive cooking system as described above.

In other words, the DE 10 2017 112 945 B3 describes a method at the end of which the system is in a "paired" state. This means that it has been ensured that the cooking vessel is directly on the hob and that no remote control takes place. In the case of a "simple" kettle, a second predetermined power would then be able to become active in the hob, which depends on the evaluation of the second signal.

According to the invention, the induction device described above offers the user additional operating elements which, in addition to switching the system on / off, can also enable the selection of, for example, a parameter for the method to be started. This can be, for example, a temperature such as for frying, a type of process such as "bubbly cooking" or other conceivable parameters that can be sent to the hob at the start of the process.

To do this, the user can first switch on the system and then make a selection. In direct continuation of the procedural steps of the DE 10 2017 112 945 B3 For this purpose, a third signal could be sent from the cookware to the hob, in which process parameters are coded. The user can then either make a selection only after the pairing has been completed, or during the ongoing pairing process, the selection then being able to be buffered until the third signal is sent.

Alternatively, the user can switch on the system directly via one of the control elements, for example "1" to "3", and thus make a selection at the same time. In this case, the selected parameter could already be in the first signal or in the second signal of the method of DE 10 2017 112 945 B3 be included, whereby a third signal would no longer be required for this purpose. In both variants, the hotplate would then be able to be operated with a second power, which can depend on the signal which contains the process parameter.

In order to enable the user to make a selection for a certain time after pairing, the cookware may require energy for this period, for example for lighting the user interface (UI) such as the actuating element. In order to avoid the loading of a built-in energy store, the first predetermined power could remain active for the duration of this period, so that the cookware could use this power via a suitable energy harvesting method such as inductive coupling. An active UI can either be displayed immediately so that the user does not notice any delay, or only in the event of a continuous inductive supply in order to inform the user that the pairing has been successfully completed.

The process steps described can not only be applied to an inductive cooking system like the one DE 10 2017 112 945 B3 but alternatively also to an inductive system in general, in which the induction device, for example as a functional cooking vessel, is not set up on a hob, but on another induction-compatible device as an induction device, such as a charging coil, which can feed the energy storage of the induction device. Depending on the application, at least one of the methods according to the invention can be used here. Pairing with subsequent inductive coupling can be sufficient as a selected function for simple charging.

For a keep-warm function, for example, the selected function could offer the user the option of a temperature selection. The individual operating elements or functional elements of the actuation element of the induction device can, for example, possibly in addition to an on / off switch, enable the selection of three power assignments or power levels I, II and III, whereby the user can make the settings low, medium or intensive keeping warm or even could select low, medium, or heavy charging. For example, the first performance level I could be keeping warm between 10 minutes and 50 minutes, preferably 20 minutes, as the second performance level II keeping warm between 30 minutes and 90 minutes, preferably 60 minutes, and as the third performance level III keeping warm between 60 minutes and 300 minutes, preferably 180 minutes can be selected.

A function duration such as keeping warm or charging for a short, medium or long period of time could also be selected by the user. In this case, the temperature of keeping warm could be approx. 70 ° C, since at this temperature food usually does not continue to cook, but on the other hand no germs can form.

In any case, the induction device could be activated simultaneously with the selection, so that a separate on / off switch could also be dispensed with.

Figur 1

eine schematische Darstellung eines erfindungsgemäßen induktiven Systems in Form eines induktiven Kochsystems mit einer erfindungsgemäßen Induktionsvorrichtung in Form eines Kochfelds und einem erfindungsgemäßen Induktionsgerät in Form eines Kochgeschirrs;

Figur 2

eine schematische Darstellung eines Betätigungselements des erfindungsgemäßen Induktionsgeräts; und

Figur 3

ein Ablaufdiagramm von vier erfindungsgemäßen Verfahren zum Betrieb eines erfindungsgemäßen induktiven Systems.

Several exemplary embodiments and further advantages of the invention are explained below in connection with the following figures. It shows:

Figure 1

a schematic representation of an inductive system according to the invention in the form of an inductive cooking system with an induction device according to the invention in the form of a hob and an induction device according to the invention in the form of cookware;

Figure 2

a schematic representation of an actuating element of the induction device according to the invention; and

Figure 3

a flow chart of four methods according to the invention for operating an inductive system according to the invention.

the Figure 1 is viewed in Cartesian coordinates. It extends in a longitudinal direction (not shown), which can also be referred to as depth or length. A transverse direction (not shown), which can also be referred to as the width, extends perpendicular to the longitudinal direction. A vertical direction Z, which can also be referred to as the height Z, extends perpendicularly both to the longitudinal direction and to the transverse direction. The longitudinal direction and the transverse direction together form the horizontal, which can also be referred to as the horizontal plane.

The hob 2 as an induction device has a glass ceramic plate 20, which represents the surface of the hob 2 on which cooking utensils 3 can be placed and used as induction devices 3. A region of the glass ceramic plate 20 forms a first hotplate 21 as a first induction point 21, further hotplates being present but not shown. In the area of the first hotplate 21, a coil 22 is arranged below the glass ceramic plate 20, which represents the coil 22 of the first hotplate 21.

The hob 2 also has a wireless receiving unit 23 and a control unit 24. The control unit 24 is designed to carry out each of the four methods according to the invention. The control unit 24 is connected to transmit signals both to the coil 22 of the first hotplate 21 and to the receiving unit 23, so that signals can be received wirelessly by the receiving unit 23 and transmitted to the control unit 24. On the part of the control unit 24, the coil 22 of the first hotplate 21 can be controlled and regulated. Furthermore, information from the coil 22 of the first hotplate 21 can be transmitted to the control unit 24. Likewise, properties of the coil 22 of the first hotplate 21 such as a voltage and / or a current can be detected by the control unit 24.

The cookware 3 as an induction device 3 is designed in these exemplary embodiments as a kettle 3, which can be used for inductive heating on a hotplate 21 of a hob 2. The kettle 3 has a cookware body 30 with a base 31, the base 31 of the cookware body 30 standing on the first hotplate 21 of the hob 2. The base 31 of the cookware body 30 is made of a ferromagnetic material in such a way that the base 31 of the cookware body 30 can be inductively heated by the coil 22 of the first hotplate 21. This can For example, water can be heated within the cookware body 30 and brought to a boil. The water can be poured out via an outlet 33 of the cookware body 30. The kettle 3 can be handled by a user by means of a handle 34. Such a kettle 3 is known.

The kettle 3 has a plurality of conductor loops 32 which are arranged circumferentially on the edge of the base 31 of the cookware body 30. Furthermore, the kettle 3 according to the invention has an actuating element 35 in the upper region of its handle 34, which can be operated by a user, preferably by means of his thumb. The actuating element 35 has four individual functional elements 35a-35d, see Figure 2 , which are each designed as a pressure switch. The first functional element 35a of the actuating element 35 is an on / off switch 35a, by actuating a temperature switch 36 in the form of a bimetal switch 36 is tensioned, which is arranged such that the bimetal switch 36 from the water inside the cookware body 30 as possible can be heated without delay. The second functional element 35b represents a second selection element 35b for selecting a first function by the user, the third functional element 35c a second selection element 35c for selecting a second function by the user and the fourth functional element 35d a third selection element 35c for selecting a third function by the User. These three functions can be different intensities of the heating of the water in the kettle 3, so that when selecting the first function by means of the second selection element 35b the heating slowly with a low inductive power, when selecting the second function by means of the third selection element 35c Heating with a medium inductive power and when selecting the third function by means of the fourth selection element 35d, the heating can take place quickly with a high inductive power.

By actuating the on / off switch 35a as a pressure switch, an electrical generator 37 is actuated, which is arranged in the handle 34 opposite the on / off switch 35a and opposite the bimetal switch 36. A transmission unit 38 can be operated by means of the electrical generator 37, which is likewise arranged in the handle 34 and opposite the pressure switch 35 relative to the electrical generator 37. The transmission unit 38 is also connected to the guide loops 32 in order to be operated from there by means of inductively absorbed power.

The following methods according to the invention can be carried out by means of this cooking system according to the invention, it being assumed that a user has placed the kettle 3 as cooking utensils 3 on the first hotplate 21 of the hob 2.

A first signal is sent 100 from the transmission unit 38 of the kettle 3 when the on / off switch 35a of the actuating element is actuated for the first time 35 of the kettle 3 for the selection of the first function by a user, which represents switching on or initializing a pairing between the kettle 3 and the hob 2. At the same time, the bimetal switch 36 is tensioned in the same step.

This is followed by receiving 150 the first signal by the receiving unit 22 of the hob 2, which has previously been in an idle mode in which the receiving unit 22 of the hob 2 can, for example, receive the first signal from the kettle 3 , but beyond that no or hardly any functions are activated, whereby the energy consumption of the hob 2 can be minimized. Correspondingly, by receiving 150 the first signal, the hob 2 is also switched from the idle mode to an operating mode which allows additional functions and in particular the inductive operation of at least the first hotplate 21, in particular with an operating power. The received first signal is then evaluated 200 by the hob 2 or by its control unit 24. In the context of this evaluation, the cookware 2 can be recognized as a kettle 2, so that a coordinated reaction can take place as follows.

The first hob 21 of the hob 2 is now operated inductively 300 with a first predetermined power for a predetermined period of time. Since the kettle 3 is actually located on the first hotplate 21 of the hob 2, due to the inductive supply of the kettle 3 by the first hotplate 21 of the hob 2, this leads to a transmission 400 of a second signal from the transmitter unit 38 of the kettle 3 The electrical energy required for this is made available by the inductive coupling of the first hob 21 of the hob 2 and the kettle 3, an electrical energy storage device can be dispensed with in the kettle 3.

On the part of the hob 2, the second signal is now received 500 by its receiving unit 23. Furthermore, the received second signal is evaluated 550 by the hob 2 or by its control unit 24. If the kettle 3 is recognized again as a result, it can be assumed that that this is actually located on the first hotplate 21 of the hob 2, because only then can an inductive transfer of electrical energy have taken place. This means that an effect from a distance can be ruled out.

This process can be referred to as pairing between the kettle 3 and the first hotplate 21 of the hob 2. This can be communicated to the user by now illuminating the second to fourth functional elements 35b-35d. Furthermore, the second to fourth functional elements 35b-35d can now be operated, so that the user can use one of the three power levels for heating the water in the kettle 3 can choose to start the heating process of the water and to specify the duration of the heating process.

Thus, a third signal is sent 700a from the transmitter unit 38 of the kettle 3 immediately upon a second actuation 650 of the actuating element 35 in the form of one of the three selection elements 35b-35d or one of the second to fourth functional elements 35b-35d for selecting the second function as a performance level by the user. The third signal contains information about the selected second function in the form of the desired performance level. The inductive supply of electrical energy on the part of the first hotplate 21 of the hob 2 is maintained for a sufficiently long time until at least the transmission 700a of the third signal has taken place.

This is followed by receiving 800 the third signal by the receiving unit 22 of the hob 2 and evaluating 850 the received third signal by the hob 2, as already described above for the first and second signals. Finally, the hob 2 or its first hotplate 21 is operated 900a as a function of the information of the selected second function, i.e. the selected power level, of the received third signal. In this way, according to the invention, by operating only the kettle 3, the hob 2 can be switched from the idle mode to the operating mode, the kettle 3 and the first hob 21 of the hob 2 can be paired, the power operation of the first hob 21 of the hob 2 can be started and a selection can be made can be made for its operation without the user having to operate the hob 2 himself. This can simplify and / or accelerate the use of the kettle 3 for the user and, in particular, enable settings to be made for the operation of the kettle 3 on the first hotplate 21 of the hob 2.

Here, the kettle 3 can be operated inductively on the first hotplate 21 of the hob 2 with a second predetermined power as selected by the user, the second predetermined power being greater than the first predetermined power. If the first power was only used for pairing, an operation can now take place with a corresponding power in order to bring the water in the kettle 3 to a boil.

If the boiling temperature of the water in the kettle 3 is reached, the voltage of the bimetal switch 36 and thus the actuation of the on / off switch 35a as a pressure switch is automatically canceled. Alternatively, the on / off switch 35a can be actuated again as a pressure switch by the voltage of the bimetal switch 36 being canceled. Alternatively, the on / off switch 35a can also be actuated again as a pressure switch by the user. In each of the three cases, a fourth signal is then transmitted from the transmission unit 38 of the cookware 3, which is triggered by the on / off switch 35a is triggered as a pressure switch and is electrically supplied by means of the electrical generator 37.

The fourth signal is then received by the receiving unit 22 of the hob 2 and evaluated by the hob 2 or by its control unit 24. In response to this, the inductive operation of the first hob 21 of the hob 2 is finally changed to the effect that this operation is ended because either the boiling temperature of the water in the kettle 3 has been reached or the boiling process has been ended by the user.

According to a second alternative method according to the invention, the second actuation 650 of the second functional element 35b takes place as the first selection element 35b of the actuation element 35 after the first actuation 050 of the first functional element 35a as an on / off switch 35a of the actuation element and the information of the selected second function of the power level are stored up to the time-shifted transmission 700b of the third signal from the transmission unit 38 of the kettle 3. After evaluating 550 the received second signal by the hob 2 or by its control unit 24, a time-delayed transmission 700b of a third signal from the transmitting unit 38 of the kettle 3 takes place in response to the second actuation 650 of the second functional element 35b of the actuating element 35 of the kettle 3 for the selection of the second function by the user, the third signal containing information on the selected second function in the form of the power level. The inductive operation 300 of the first hob 21 of the hob 2 with the first predetermined power 25 takes place for a correspondingly long time in order to transmit 400 the second signal from the transmitter unit 38 of the kettle 3 and the time-shifted transmission 700b of the third signal from the transmitter unit 38 of the kettle 3 to enable.

According to a third alternative method according to the invention, each of the second to fourth functional elements 35b-35d is designed as a first to third selection element 35b-35d comparable to the first functional element 35a as an on / off switch 35a as a push button, so that when each of the second to fourth functional elements 35b-35d as first to third selection element 35b-35d, in addition to selecting one of the three functions or power levels, the function of switching on / off can also be performed as described above. Correspondingly, the information of the selected first function can already be contained as a power level in the first signal, so that the previously described steps after evaluating 550 the received second signal by the hob 2 can be dispensed with.

According to a fourth alternative method according to the invention, the information of the selected first function can instead be used as a performance level in the second Signal can be included, so that in this case too, the steps described above after evaluating 550 the received second signal by the hob 2 can be dispensed with.

List of reference symbols (part of the description)

Z

vertical direction; height

1

inductive system; inductive cooking system

2

Induction device; Hob

20th

Glass ceramic plate

21

first induction site; first hotplate

22nd

Coil of the first induction point 21

23

wireless receiving unit

24

Control unit

3

Induction device; Cookware; Cooking container; Water heater; boiler

30th

Cookware body

31

Bottom of cookware body 30

32

Conductor loops

33

Outlet

34

Handle

35

Actuator

35a

first functional element; On / off switch

35b

second functional element; first selection element

35c

third functional element; second selection element

35d

fourth functional element; third selection element

36

Temperature switch; Bimetal switch

37

electric generator

38

wireless transmitter unit; Radio module

050

first actuation of the actuation element 35 of the induction device 3

100

Sending a first signal from the transmission unit 38 of the induction device 3 upon a first actuation 050 of the actuation element 35 of the induction device 3

150

Receipt of the first signal by the receiving unit 22 of the induction device 2

200

Evaluation of the received first signal by the induction device 2

300

inductive operation of at least the first induction point 21 of the induction device 2

350

Receiving the first predetermined inductive power for the transmission 400 of the second signal from the transmission unit 38 of the induction device 3

400

Sending a second signal from the transmission unit 38 of the induction device 3

450

Activate at least the second functional element 35b of the actuating element 35

500

Receiving the second signal by the receiving unit 23 of the induction device 2

550

Evaluation of the received second signal by the induction device 2

650a

second actuation of the actuating element 35 of the induction device 3

700a

Sending a third signal from the transmitting unit 38 of the induction device 3 when the actuating element 35 of the induction device 3 is actuated a second time

700b

Time-delayed transmission of a third signal from the transmission unit 38 of the induction device 3 in response to a second actuation 650 of the actuation element 35 of the induction device 3

800

Receipt of the third signal by the receiving unit 22 of the induction device 2

850

Evaluation of the received third signal by the induction device 2

900a

at least (inductive) operation of the induction device 2 as a function of the information of the selected second function of the received third signal

900c

at least (inductive) operation of the induction device 2 as a function of the information of the selected first function of the received first signal

900d

at least (inductive) operation of the induction device 2 as a function of the information of the selected first function of the received second signal

Claims (15)

Method for operating an inductive system (1), preferably an inductive cooking system (1),
wherein the inductive system (1) comprises: an induction device (2), preferably a hob (2), with at least one first induction point (21), preferably with at least one first cooking point (21), and with at least one receiving unit (23), and at least one induction device (3), preferably at least one cookware (3), with at least one actuating element (35) and with at least one transmitter unit (38), wherein the actuating element (35) is designed to enable a user to choose between at least two functions of the induction device (2) and / or the induction device (3), wherein the induction device (3) is arranged on the first induction point (21) of the induction device (2), with at least the steps: Sending (100) a first signal from the transmitting unit (38) of the induction device (3) upon a first actuation (050) of the actuating element (35) of the induction device (3) for the selection of the first function by a user, Receiving (150) the first signal by the receiving unit (22) of the induction device (2), Evaluating (200) the received first signal by the induction device (2), inductive operation (300) of at least the first induction point (21) of the induction device (2) with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal, Sending (400) a second signal from the transmitting unit (38) of the induction device (3) when the induction device (3) is supplied inductively by the first induction point (21), Receiving (500) the second signal by the receiving unit (23) of the induction device (2), Evaluating (550) the received second signal by the induction device (2), Sending (700a) a third signal from the transmitting unit (38) of the induction device (3) upon a second actuation (650) of the actuating element (35) of the induction device (3) for the selection of the second function by the user, wherein the third signal contains information of the selected second function, Receiving (800) the third signal by the receiving unit (22) of the induction device (2), Evaluation (850) of the received third signal by the induction device (2) and Operating (900a) at least the induction device (2) as a function of the information of the selected second function of the received third signal. The method according to claim 1, characterized in that the actuating element (35) at least
a first functional element (35a) for the selection of the first function by the user and
a second functional element (35b) for the user to select the second function
having,
wherein the first actuation (050) of the actuating element (35) of the induction device (3) takes place by means of the first functional element (35a) of the actuating element (35) and wherein the second functional element (35b) of the actuating element (35) takes place at least until the first actuation (050) ) of the actuating element (35) of the induction device (3), preferably up to a reception (350) of the electrical energy for the emission (400) of the second signal from the transmission unit (38) of the induction device (3) from the first predetermined inductive power of the first induction site (21) of the induction device (2), cannot be used. Method according to Claim 2, characterized by the further steps: Receiving (350) the electrical energy for sending (400) the second signal from the transmitting unit (38) of the induction device (3) from the first predetermined inductive power of the first induction point (21) of the induction device (2), and Activating (450) at least the second functional element (35b) of the actuating element (35). Method for operating an inductive system (1), preferably an inductive cooking system (1),
wherein the inductive system (1) comprises: an induction device (2), preferably a hob (2), with at least one first induction point (21), preferably with at least one first cooking point (21), and with at least one receiving unit (23), and at least one induction device (3), preferably at least one cookware (3), with at least one actuating element (35) and with at least one transmitter unit (38), wherein the actuating element (35) is designed to enable a user to choose between at least two functions of the induction device (2) and / or the induction device (3), wherein the induction device (3) is arranged on the first induction point (21) of the induction device (2), with at least the steps: Sending (100) a first signal from the transmitting unit (38) of the induction device (3) upon a first actuation (050) of the actuating element (35) of the induction device (3) for the selection of the first function by a user, Receiving (150) the first signal by the receiving unit (22) of the induction device (2), Evaluating (200) the received first signal by the induction device (2), inductive operation (300) of at least the first induction point (21) of the induction device (2) with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal, Sending (400) a second signal from the transmitting unit (38) of the induction device (3) when the induction device (3) is supplied inductively by the first induction point (21), Receiving (500) the second signal by the receiving unit (23) of the induction device (2), Evaluating (550) the received second signal by the induction device (2), time-delayed transmission (700b) of a third signal from the transmission unit (38) of the induction device (3) in response to a second actuation (650) of the actuation element (35) of the induction device (3) for the selection of the second function by the user, wherein the third signal contains information of the selected second function, the second actuation (650) of the actuation element (35) of the induction device (3) taking place after the first actuation (050) of the actuation element (35) of the induction device (3) and the information of the selected second function up to the time-delayed transmission (700b) of the third signal from the transmitter unit (38) of the induction device (3) are stored, Receiving (800) the third signal by the receiving unit (22) of the induction device (2), Evaluating (850) the received third signal by the induction device (2) and Operating (900a) at least the induction device (2) as a function of the information of the selected second function of the received third signal. Method according to one of the preceding claims, characterized in that
the predetermined period of inductive operation (300) of at least the first induction point (21) of the induction device (2) with the first predetermined power is sufficiently long to allow the transmission (400) of the second signal from the transmission unit (38) of the induction device (3) and to enable the time-shifted transmission (700b) of the third signal from the transmission unit (38) of the induction device (3). Method for operating an inductive system (1), preferably an inductive cooking system (1),
wherein the inductive system (1) comprises: an induction device (2), preferably a hob (2), with at least one first induction point (21), preferably with at least one first cooking point (21), and with at least one receiving unit (23), and at least one induction device (3), preferably at least one cookware (3), with at least one actuating element (35) and with at least one transmitter unit (38), wherein the actuating element (35) is designed to enable a user to choose between at least two functions of the induction device (2) and / or the induction device (3), wherein the induction device (3) is arranged on the first induction point (21) of the induction device (2), with at least the steps: Sending (100) a first signal from the transmitting unit (38) of the induction device (3) upon a first actuation (050) of the actuating element (35) of the induction device (3) for the selection of the first function by a user, wherein the first signal contains information of the selected first function, Receiving (150) the first signal by the receiving unit (22) of the induction device (2), Evaluating (200) the received first signal by the induction device (2), inductive operation (300) of at least the first induction point (21) of the induction device (2) with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal, Sending (400) a second signal from the transmitting unit (38) of the induction device (3) when the induction device (3) is supplied inductively by the first induction point (21), Receiving (500) the second signal by the receiving unit (23) of the induction device (2), Evaluation (550) of the received second signal by the induction device (2) and Operating (900c) at least the induction device (2) as a function of the information of the selected first function of the received first signal. Method for operating an inductive system (1), preferably an inductive cooking system (1),
wherein the inductive system (1) comprises: an induction device (2), preferably a hob (2), with at least one first induction point (21), preferably with at least one first cooking point (21), and with at least one receiving unit (23), and at least one induction device (3), preferably at least one cookware (3), with at least one actuating element (35) and with at least one transmitter unit (38), wherein the actuating element (35) is designed to enable a user to choose between at least two functions of the induction device (2) and / or the induction device (3), wherein the induction device (3) is arranged on the first induction point (21) of the induction device (2), with at least the steps: Sending (100) a first signal from the transmitting unit (38) of the induction device (3) upon a first actuation (050) of the actuating element (35) of the induction device (3) for the selection of the first function by a user, Receiving (150) the first signal by the receiving unit (22) of the induction device (2), Evaluating (200) the received first signal by the induction device (2), inductive operation (300) of at least the first induction point (21) of the induction device (2) with a first predetermined power for a predetermined period of time depending on the evaluation of the received first signal, Sending (400) a second signal from the transmitting unit (38) of the induction device (3) when the induction device (3) is supplied inductively by the first induction point (21), wherein the second signal contains information of the selected first function, Receiving (500) the second signal by the receiving unit (23) of the induction device (2), Evaluating (550) the received second signal by the induction device (2) and Operating (900d) at least the induction device (2) as a function of the information of the selected first function of the received second signal. Method according to claim 7, characterized in that
after the first actuation (050) of the actuation element (35) of the induction device (3) the information of the selected first function is stored until the transmission (400) of a second signal from the transmission unit (38) of the induction device (3). Method according to one of the preceding claims, characterized in that the operation (900a; 900c; 900d) of the induction device (2) comprises: inductive operation (900a; 900c; 900d) of the first induction point (21) of the induction device (2) with a second predetermined power, wherein the second predetermined power is greater than the first predetermined power. Method according to one of the preceding claims, characterized in that
the induction device (3) furthermore has at least one electrical generator (37) which is designed to be operated by the user by means of the operating element (35),
wherein the electrical generator (37) is further designed, through its actuation, the electrical energy for the transmission (100) of the first signal, preferably and for the (time-shifted) transmission (700a; 700b) of the third signal, from the transmission unit (38) of the induction device (3). Method according to one of the preceding claims, characterized in that
the induction device (3) furthermore has at least one conductor loop (32), preferably a plurality of conductor loops (32), which is designed to receive the first predetermined inductive power from the first induction point (21) of the induction device (2),
wherein the conductor loop (32) is further designed to generate the electrical energy for the transmission (400) of the second signal from the transmission unit (38) of the induction device (3) by receiving (350) the first predetermined inductive power. Method according to one of the preceding claims, characterized in that
the induction device (2) is designed to be switched from an idle mode to an operating mode by receiving (150) the first signal. Inductive system (1), preferably inductive cooking system (1), with
at least one induction device (2), preferably with at least one hob (2)
at least one first induction point (21), preferably at least one first cooking point (21), and with
at least one receiving unit (23), and with
at least one induction device (3), preferably at least one cookware (3), with
at least one actuating element (35) and with
at least one transmission unit (38),
wherein the induction device (2) and the induction device (3) are designed to carry out a method according to one of claims 1 to 12. Induction device (2), preferably hob (2), for use in an inductive system (1), preferably in an inductive cooking system (1), according to claim 13, with
at least one first induction point (21), preferably at least one first cooking point (21), and with
at least one receiving unit (23). Induction device (3), preferably cookware (3), for use in an inductive system (1), preferably in an inductive cooking system (1), according to claim 13, with at least one actuating element (35) which is designed to give a user a selection to enable between at least two functions of the induction device (2) and / or the induction device (3), and with
at least one transmission unit (38),
wherein the actuating element (35) preferably at least
a first functional element (35a) for the selection of the first function by the user and
a second functional element (35b) for the user to select the second function
having.

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