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EP-3927113-B1 - METHOD FOR OPERATING AN INDUCTIVE SYSTEM, PREFERABLY OF AN INDUCTIVE COOKING SYSTEM

EP3927113B1EP 3927113 B1EP3927113 B1EP 3927113B1EP-3927113-B1

Inventors

  • Gehring, Nils Marius
  • Müller, Christoph

Dates

Publication Date
20260513
Application Date
20210607

Claims (11)

  1. Method for operating an inductive system (1), preferably an inductive cooking system (1), wherein the inductive system (1) has: an induction device (2), preferably a hob (2), comprising at least a first induction point (21), preferably a first hot plate (21), and comprising at least one receiving unit (23), and at least one induction appliance (3), preferably at least one kitchen utensil (3), comprising at least one actuation element (35) and comprising at least one transmission unit (38), wherein the induction appliance (3) is arranged on the first induction point (21) of the induction device (2), the method comprising at least the steps of: emitting (100) a first signal from the transmission unit (38) of the induction appliance (3) when the actuation element (35) of the induction appliance (3) is actuated for the first time (050), the receiving unit (23) of the induction device (2) receiving (150) the first signal, the induction device (2) evaluating (200) the received first signal, inductively operating (300) at least the first induction point (21) of the induction device (2) at a first predetermined power for a predetermined period of time on the basis of the evaluation of the received first signal, emitting (400) a second signal from the transmission unit (38) of the induction appliance (3) when the induction appliance (3) is powered inductively by the first induction point (21), the receiving unit (23) of the induction device (2) receiving (500) the second signal, the induction device (2) evaluating (550) the received second signal, emitting (700a) a third signal from the transmission unit (38) of the induction appliance (3) when the actuation element (35) of the induction appliance (3) is actuated for the second time (650), the receiving unit (23) of the induction device (2) receiving (800) the third signal, and the induction device (2) evaluating (850) the received third signal, characterised in that the actuation element (35) is designed to allow a user to select between at least two functions of the induction device (2) and/or the induction appliance (3), wherein the first actuation (050) involves a user selecting the first function via a first functional element (35a) of the actuation element (35) of the induction appliance (3), wherein the second actuation (650) involves the user selecting the second function via a second functional element (35b) of the actuation element (35) of the induction appliance (3), wherein the third signal contains information relating to the selected second function, wherein the second functional element (35b) of the actuation element (35) cannot be used at least until the actuation element (35) of the induction appliance (3) is actuated for the first time (050), preferably until the electrical energy for emitting (400) the second signal from the transmission unit (38) of the induction appliance (3) is received (350) from the first predetermined inductive power of the first induction point (21) of the induction device (2), and operating (900a) at least the induction device (2) on the basis of the information relating to the selected second function of the received third signal.
  2. Method according to the preceding claim, characterised by the further steps of: receiving (350) the electrical energy for emitting (400) the second signal from the transmission unit (38) of the induction appliance (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 actuation element (35).
  3. Method for operating an inductive system (1), preferably an inductive cooking system (1), wherein the inductive system (1) has: an induction device (2), preferably a hob (2), comprising at least a first induction point (21), preferably a first hot plate (21), and comprising at least one receiving unit (23), and at least one induction appliance (3), preferably at least one kitchen utensil (3), comprising at least one actuation element (35) and comprising at least one transmission unit (38), wherein the induction appliance (3) is arranged on the first induction point (21) of the induction device (2), the method comprising at least the steps of: emitting (100) a first signal from the transmission unit (38) of the induction appliance (3) when the actuation element (35) of the induction appliance (3) is actuated for the first time (050), the receiving unit (23) of the induction device (2) receiving (150) the first signal, the induction device (2) evaluating (200) the received first signal, inductively operating (300) at least the first induction point (21) of the induction device (2) at a first predetermined power for a predetermined period of time on the basis of the evaluation of the received first signal, emitting (400) a second signal from the transmission unit (38) of the induction appliance (3) when the induction appliance (3) is powered inductively by the first induction point (21), the receiving unit (23) of the induction device (2) receiving (500) the second signal, the induction device (2) evaluating (550) the received second signal, emitting (700a) a third signal from the transmission unit (38) of the induction appliance (3) when the actuation element (35) of the induction appliance (3) is actuated for the second time (650), the receiving unit (23) of the induction device (2) receiving (800) the third signal, and the induction device (2) evaluating (850) the received third signal, characterised in that the actuation element (35) is designed to allow a user to select between at least two functions of the induction device (2) and/or the induction appliance (3), wherein the first actuation (050) involves a user selecting the first function via a first functional element (35a) of the actuation element (35) of the induction appliance (3), wherein the third signal is emitted (700b) from the transmission unit (38) of the induction appliance (3) in a delayed manner, in response to the actuation element (35) of the induction appliance (3) being actuated for the second time (650) for the user to select the second function, wherein the third signal contains information relating to the selected second function, wherein the second actuation (650) is carried out via a second functional element (35b) of the actuation element (35) of the induction appliance (3) after the actuation element (35) of the induction appliance (3) has been actuated for the first time (050), and the information relating to the selected second function is stored until the third signal is emitted (700b) from the transmission unit (38) of the induction appliance (3) in a delayed manner, and operating (900a) at least the induction device (2) on the basis of the information relating to the selected second function of the received third signal.
  4. Method according to any of the preceding claims, characterised in that the predetermined period of time for inductively operating (300) at least the first induction point (21) of the induction device (2) at the first predetermined power is sufficiently long to allow the second signal to be emitted (400) from the transmission unit (38) of the induction appliance (3) and to allow the third signal to be emitted (700b) from the transmission unit (38) of the induction appliance (3) in a delayed manner.
  5. Method according to any of the preceding claims, characterised in that operating (900a; 900c; 900d) the induction device (2) comprises: inductively operating (900a; 900c; 900d) the first induction point (21) of the induction device (2) at a second predetermined power, wherein the second predetermined power is greater than the first predetermined power.
  6. Method according to any of the preceding claims, characterised in that the induction appliance (3) further has at least one electrical generator (37) designed to be actuated by the user by means of the actuation element (35), wherein the electrical generator (37) is further designed to generate, by being actuated, the electrical energy for emitting (100) the first signal, preferably and for emitting (700a; 700b) the third signal (in a delayed manner), from the transmission unit (38) of the induction appliance (3).
  7. Method according to any of the preceding claims, characterised in that the induction appliance (3) further has at least one conductor loop (32), preferably a plurality of conductor loops (32), 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, by receiving (350) the first predetermined inductive power, the electrical energy for emitting (400) the second signal from the transmission unit (38) of the induction appliance (3).
  8. Method according to any of the preceding claims, characterised in that the induction device (2) is designed to be switched from a standby mode to an operating mode by receiving (150) the first signal.
  9. Inductive system (1), preferably an inductive cooking system (1), comprising at least one induction device (2), preferably comprising at least one hob (2), comprising at least a first induction point (21), preferably a first hot plate (21), and comprising at least one receiving unit (23), and comprising at least one induction appliance (3), preferably at least one kitchen utensil (3), comprising at least one actuation element (35), and comprising at least one transmission unit (38), wherein the induction device (2) and the induction appliance (3) are designed to carry out a method according to any of claims 1 to 8.
  10. Induction device (2), preferably a hob (2), for use in an inductive system (1), preferably in an inductive cooking system (1), according to claim 9, comprising at least a first induction point (21), preferably at least a first hot plate (21), and comprising at least one receiving unit (23).
  11. Induction appliance (3), preferably a kitchen utensil (3), for use in an inductive system (1), preferably in an inductive cooking system (1), according to claim 9, comprising at least one actuation element (35) designed to allow a user to select between at least two functions of the induction device (2) and/or the induction appliance (3), and comprising at least one transmission unit (38), wherein the actuation element (35) preferably has at least a first functional element (35a) for the user to select the first function, and a second functional element (35b) for the user to select the second function.

Description

The invention relates to several methods for operating an inductive system, preferably an inductive cooking system, according to claims 1 and 3, an inductive system for carrying out such methods according to claim 9, an induction device for use in such an inductive system according to claim 10, and an induction device for use in such an inductive system according to claim 11. The trend in home cooking is increasingly towards making the cooking process simpler, more convenient, and/or safer for the user in terms of achieving the desired cooking result. For some time now, it has been known to use temperature sensors in the cooktop to detect residual heat in each cooking zone after cooking and display this information to the user as a warning. A cooking process can also be supported by providing the user with fully automatic programs or assistance functions that relieve the user of part or even the entire cooking process. A cooking process can also be supported, for example, by the cooktop and/or a mobile device, which can monitor the cooking process, display it to the user, and show the next steps in the recipe sequence or provide corresponding instructions. The goal is for cooktops to become increasingly less visually prominent in the kitchen. This includes making the cooktop controls less conspicuous or even eliminating them entirely. This can lead to the controls and displays of the cooktops being integrated into the cookware. Therefore, it may be necessary, or at least desirable, for information to be exchanged between the cookware and the cooktop. This could include the transmission of instructions and measurements. (From the printed document) WO 2015 154 237 A1 is a type of cookware with control elements. It should be noted that communication between cookware and hob or cooking appliance via radio transmission, e.g. using transponder technology, can represent a remote effect, i.e., the control and/or regulation of a device by a command that is made outside the line of sight of the device. This can occur. Therefore, communication and thus mutual or at least one-sided influence can take place between the components, even when they are not in their intended use. In other words, for example, the cookware could operate the hob or cooking zone even if the cookware is not actually on the hob or cooking zone. Since this can endanger user safety, such remote effects in the home must be prevented according to the standard DIN EN 60335-01 (VDE 0700-1). The systems and devices described above may therefore not comply with the standard, which could prevent their use. The DE 10 2017 112 945 B3 Therefore, describes a method for operating an inductive cooking system, wherein the inductive cooking system comprises a cooktop with at least one first cooking point and with at least one receiving unit and at least one cookware with at least one actuating element and with at least one transmitting unit, wherein the cookware is arranged on the first cooking point of the cooktop, comprising at least the following steps: Emitting an initial signal from the cookware's transmitter unit when the cookware's operating element is activated by a user, Receiving the first signal by the cooktop's receiver unit, The cooktop evaluates the received first signal. Inductive operation of at least the first cooking zone of the hob with a first predetermined power for a predetermined period depending on the evaluation of the received first signal, Emitting a second signal from the cookware's transmitter unit when the cookware is inductively powered by the first cooking zone, Receiving the second signal by the cooktop's receiver unit, and The cooktop evaluates the received second signal. Dem DE 10 2017 112 945 B3 The underlying idea is that in this way, the user only needs to perform a single actuation of the cookware's operating element to initiate the entire subsequent process. This allows the process of DE 10 2017 112 945 B3 or a suitable cookware with only one operating element is sufficient to start and execute the process. This is made possible by the fact that a single press of the cookware's control element by the user triggers a pairing process between the cooktop (or its cooking zone) and the cookware, resulting in a connection between the cooktop and the cookware. In other words, the user's single press of the cookware's control element triggers a signal from the cooktop back to the cookware, which in turn causes a response from the cookware that leads to a successful pairing. This successful pairing can then be used by the cooktop to, for example, initiate an automated cooking process for that cooking zone. This automated cooking process can thus be triggered by the user with a single press of the cookware's control element. The procedure of DE 10 2017 112 945 B3 This is implemented in accordance with standards, while avoiding any remote effects, by using inductive power as the pairing signal emitted by the cooktop. The cookware's r