Method for adjusting an inrush current of a domestic appliance, and domestic appliance, in particular cooking range, comprising a control unit for carrying out the method

Abstract

In a method for setting an inrush current of a domestic appliance to a region-specific inrush current, the domestic appliance is switched to a setting mode, in which the inrush current is limited at the domestic appliance to one of a number of region-specific inrush currents that are selectable at the domestic appliance.

Claims

1. A method for setting an inrush current of a domestic appliance to a region-specific inrush current, the method comprising: switching the domestic appliance to a setting mode configured for a user to select a region-specific inrush current from a plurality of region-specific inrush currents; and limiting the inrush current of the domestic appliance to the region-specific inrush current in response to a selection by the user.

2. The method of claim 1, further comprising providing at least one function unit of the domestic appliance with a plurality of operating stages, and assigning a region-specific inrush current of the plurality of region-specific inrush currents to each of the plurality of operating stages in the setting mode.

3. The method of claim 2, further comprising setting an assigned operating stage within a predetermined time interval after setting the setting mode to select the region-specific inrush current.

4. The method of claim 3, further comprising: visually displaying the selected region-specific inrush current; and storing the selected region-specific inrush current in response to a switching off of the domestic appliance.

5. The method of claim 2, wherein the domestic appliance is a cooktop, and wherein the cooktop includes a plurality of function units configured as cooking zones, the method further comprising: switching on the cooktop to activate the setting mode, and leaving at least two of the plurality of function units configured as cooking zones unoccupied.

6. The method of claim 5, further comprising: setting, after the cooktop has been switched on, all of the cooking zones within a time interval to a cooking stage provided as the operating stage, to which the selected region-specific inrush current is assigned in the setting mode.

7. The method of claim 6, wherein the time interval is one minute.

8. The method of claim 6, further comprising: switching off each of the cooking zones after the region-specific inrush current has been set for all of the cooking zones.

9. The method of claim 8, wherein the cooking zones are switched off in a predetermined sequence.

10. The method of claim 8, wherein the cooking zones are switched off in a counterclockwise sequence.

11. The method of claim 8, further comprising visually displaying the set region-specific inrush current in one of a region of a surface of the cooking zones and a region of an operating apparatus of the cooktop.

12. The method of claim 8, wherein the cooktop is switched off after setting of the region-specific inrush current, and thereby storing the set inrush current.

13. The method of claim 12, wherein the setting mode is terminated in response to the storing of the set inrush current after the cooktop has been switched off.

14. A domestic appliance, comprising: a control unit configured to switch the domestic appliance to a setting mode configured for a user to select a region-specific inrush current from a plurality of region-specific inrush currents, wherein the control unit is configured to limit the inrush current of the domestic appliance to the region-specific inrush current in response to a selection by the user.

15. The domestic appliance of claim 14, constructed in the form of a cooktop.

16. The domestic appliance of claim 14, further comprising: at least one function unit having a plurality of operating stages, wherein the control unit is configured to assign a region-specific inrush current of the plurality of region-specific inrush currents to each of the plurality of operating stages in the setting mode.

17. The domestic appliance of claim 16, wherein the control unit is configured to set an assigned operating stage within a predetermined time interval after setting the setting mode to select the region-specific inrush current.

18. The domestic appliance of claim 17, further comprising: a display configured to visually display the selected region-specific inrush current; and a storage unit configured to store the selected region-specific inrush current in response to a switching off of the domestic appliance.

19. The domestic appliance of claim 16, constructed in the form of a cooktop having a plurality of function units configured as cooking zones, wherein the control unit is configured to switch on the cooktop to activate the setting mode, while at least two of the plurality of function units configured as cooking zones remain unoccupied.

20. The domestic appliance of claim 19, wherein the control unit is configured to set, after the cooktop has been switched on, all of the cooking zones within a time interval to a cooking stage provided as the operating stage, to which the selected region-specific inrush current is assigned in the setting mode.

21. The domestic appliance of claim 20, wherein the time interval is one minute.

22. The domestic appliance of claim 20, wherein the control unit is configured to switch off each of the cooking zones after the region-specific inrush current has been set for all of the cooking zones.

23. The domestic appliance of claim 22, wherein the control unit is configured to switch off the cooking zones in a predetermined sequence.

24. The domestic appliance of claim 22, wherein the control unit is configured to switch off the cooking zones in a counterclockwise sequence.

25. The domestic appliance of claim 20, further comprising a display configured to visually display the set region-specific inrush current in a region of a surface of the cooking zones.

26. The domestic appliance of claim 20, further comprising: an operating apparatus of the cooktop configured for the user to select the region-specific inrush current from the plurality of region-specific inrush currents; and a display configured to visually display the set region-specific inrush current in a region of the operating apparatus.

27. The domestic appliance of claim 20, wherein the control unit is configured to switch off the cooktop after setting of the region-specific inrush current, and further comprising a storage unit configured to store the set region-specific inrush current after the cooktop has been switched off.

28. The domestic appliance of claim 27, wherein the control unit is configured to terminate the setting mode is in response to the storing of the set region-specific inrush current after the cooktop has been switched off.

29. A domestic appliance, comprising: at least one function unit having a plurality of operating stages, wherein each of the plurality of operating stages is configured for an inrush current of a region of a plurality of different regions; an operating apparatus configured for a user to select an operating stage of the plurality of operating stages corresponding to a particular inrush current of a particular region of the plurality of different regions in which the domestic appliance will be operated; and a control unit configured to assign the selected operating stage having the particular inrush current to the at least one function unit.

30. The domestic appliance of claim 29, wherein the domestic appliance includes a cooktop, wherein the at least one function unit includes a cooktop plate having at least one cooking zone, and wherein the control unit is configured to assign the selected operating stage having the particular inrush current to the at least one cooking zone.

31. The domestic appliance of claim 29, wherein the domestic appliance includes a cooktop, wherein the at least one function unit includes a cooktop plate having a plurality of cooking zones and each of the plurality of cooking zones includes a plurality of operating stages, each configured for an inrush current of the plurality of different regions, and wherein the control unit is configured to assign the selected operating stage having the particular inrush current to each of the plurality of cooking zones.

32. The domestic appliance of claim 29, further comprising: a display configured to visually display the selected operating stage having the particular inrush current; and a storage unit configured to store the selected operating stage having the particular inrush current in response to a switching off of the domestic appliance.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) An exemplary embodiment of the invention is described in more detail below based on schematic drawings, in which:

(2) FIG. 1 shows a perspective view of an exemplary embodiment of an inventive cooktop;

(3) FIG. 2 shows a top view of the cooktop during a first setting phase in setting mode;

(4) FIG. 3 shows a top view of the cooktop in a second phase in setting mode;

(5) FIG. 4 shows a top view of the cooktop in a third phase of setting mode; and

(6) FIG. 5 shows a top view of the cooktop in a fourth phase of setting mode.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS OF THE PRESENT INVENTION

(7) Identical elements or those of identical function are shown with identical reference characters in the figures.

(8) FIG. 1 shows a perspective view of a cooktop 1 configured as an induction cooktop. It comprises a cooktop plate 2, which can be made for example from glass or glass ceramic. Cooking zones 4, 5, 6 and 7 are configured on an upper face 3 of the cooktop plate 2 in the exemplary embodiment. Preparation vessels can be positioned on these for food preparation purposes.

(9) The cooktop 1 also comprises an operating apparatus 8. In the exemplary embodiment this is integrated in the cooktop 1 and can be operated by touching the upper face of the cooktop plate 2. The operating apparatus 8 is configured at least partially with touch-sensitive operating elements. The cooktop 1 also comprises a control unit 9, which is preferably assigned to the operating apparatus 8.

(10) The cooktop 1 is designed so that it can be connected to different inrush currents in different countries. To this end the maximum inrush current can be set in a region-specific manner. This means that the cooktop 1 can be operated without any problem in different countries, in which different maximum inrush currents are preset.

(11) For example if the cooktop 1 is connected to an energy supply network 10, which permits a maximum inrush current of 16 A, the cooktop 1 can be set accordingly for this.

(12) To this end provision is made for this setting to be performed in a specific setting mode. To this end the cooktop 1 is first switched on by actuating a main switch 11. Provision is also made for the cooking zones 4 to 7 to be free of preparation vessels to implement setting mode. This means that there are then no preparation vessels positioned on said cooking zones 4 to 7 and the cooking zones 4 to 7 are therefore unoccupied.

(13) It is then also necessary in this setting mode for all the cooking zones 4 to 7 to be set to the desired region-specific inrush current within a predetermined time period, in particular within 60 seconds. Provision is made here for cooking stages of the cooking zones 4 to 7 that can be set in setting mode to be assigned specific inrush currents and therefore by selecting a cooking stage it is also possible to select the desired region-specific inrush current.

(14) In the exemplary embodiment provision is made for the cooking zones 4 to 7 to each have at least four cooking stages in a cooktop 1. An inrush current of 20 A is assigned to the first cooking stage, an inrush current of 16 A is assigned to the second cooking stage, an inrush current of 13 A is assigned to the third cooking stage and an inrush current of 10 A is assigned to the fourth cooking stage here. This is stored and predetermined correspondingly in the electronics unit of the cooktop 1.

(15) If cooking stage two is selected within the abovementioned time interval for all four cooking zones 4 to 7, the region-specific inrush current of 16 A is selected for all the cooking zones 4 to 7. This is also displayed visually according to the diagram in FIG. 2. Provision can also be made here for the cooking stage numbers 2 to be displayed visually in each instance in the region of the cooking zone surfaces of the cooking zones 4 to 7. Provision can however also be made for the cooking zones 4 to 7 also to be shown symbolically in respect of their matrix-type arrangement in the region of the operating apparatus 8 and visual displays are present there which then show the cooking stage selections shown respectively in FIG. 2.

(16) The cooking zones 4 to 7 are then switched off in setting mode. This takes place in a very specific sequence. In the exemplary embodiment provision is made for the cooking zone 4 to be switched off first, then the cooking zone 5, then the cooking zone 6 and finally the cooking zone 7. To this end FIG. 3 shows the situation in which all the cooking zones 4 to 7 have already been switched off. The number 0 indicates and visually displays the switched off state here.

(17) A visual display of the value of the selected and set region-specific inrush current then takes place according to the diagrams in FIG. 4 and FIG. 5, with alternating flashing for example also taking place in the two right-hand cooking zone surfaces of the cooking zones 4 and 5 or alternatively in the display region of the operating apparatus 8, with the letter C for current being displayed first and then switching to the value 16, as shown in FIG. 5.

(18) If the selected region-specific inrush current is correct, the user can switch off the cooktop 1 as a whole by actuating the main switch 11. The set inrush current is then stored subject to automatic control by the control unit 9 and remains set until a change is made in a setting mode. The cooktop 1 can therefore be tailored very simply and easily to different region-specific inrush currents. It is also possible, based on the setting scenario described, to activate setting mode again and to select and set the region-specific inrush current of 20 A for example by setting the cooking stage 1, in order to operate the cooktop 1 in a different region.