Touch switch layout and method for the control of a touch switch

• US 6,734,377 B2
• Filed: 05/07/2002
• Issued: 05/11/2004
• Est. Priority Date: 05/07/2001
• Status: Expired due to Fees

• Current Assignee: EGO Elektro-Gerã¤Tebau GmbH (EGO Blanc und Fischer & Company GmbH)
• Original Assignee: EGO Elektro-Gerã¤Tebau GmbH (EGO Blanc und Fischer & Company GmbH)
• Inventors: Gremm, Oliver, Herweg, Elmar
• Primary Examiner(s): Friedhofer, Michael A.
• Application Number:
  US10/140,543
• Publication Number:
  US 20020162730A1
• Time in Patent Office: 735 Days
• Field of Search: 200/1.R, 200/5.R, 200/5.A, 200/17.R, 200/18, 200/600, 200/512, 200/511, 200/308-317, 341/20, 341/33, 341/26, 341/72, 341/195, 341/24, 345/168, 345/173, 219/483-486, 219/501, 219/494, 219/440-445, 219/506, 219/508, 219/509, 219/448, 219/505, 219/453
• US Class Current: 200/5.00R
• CPC Class Codes: F24C 7/082 on ranges, e.g. control panels, illumination
• CPC Class Codes: H05B 3/746 Protection, e.g. overheat cutoff, hot plate indicator

Abstract

A touch switch layout for a hob having several hotplates is described. For said hotplates is in each case provided a separate selection switch with which the power can be selected in each case. There is also a single, common touch switch for power reduction for all the hotplates. According to the associated operating method, on operating the common power control switch only the power of a selected hotplate is modified or reduced. The power of a hotplate is increased by briefly operating a selection button as selection and renewed operation of the selection button as an increase. This then functions as a power increase switch. It is obvious that the function can also be reversed.

Claims

1. A touch switch layout for an electrical appliance with several electric loads, electric power to said several electric loads being settable by a power setting in a direction towards higher power or lower power, the touch switch layout comprising:

at least one selection switch with a selection function for selecting at least one of said electric loads for said power setting to be carried out,

wherein, in addition to said selection function, said at least one selection switch is constructed for said power setting of a specific one of said electric loads in a single direction.

2. Touch switch layout according to claim 1, wherein a common control switch for several of said electric loads is provided for said power setting in the other direction.

3. Touch switch layout according to claim 2, comprising a plurality of said selection switches, wherein said plurality of selection switches are grouped around at least one common control switch.

4. Touch switch layout according to claim 3, wherein a spacing between one of said selection switches and said control switch is less than 10 cm.

5. Touch switch layout according to claim 1, comprising a plurality of said selection switches, wherein said plurality of selection switches are grouped around at least one display.

6. Touch switch layout according to claim 1, comprising a plurality of said selection switches, wherein said plurality of selection switches are arranged to form a polygon, one of said selection switches being located in each angle of the polygon.

7. Touch switch layout according to claim 1, wherein optical display means for a display of a status or switching state of said at least one selection switch are associated with said at least one selection switch.

8. Touch switch layout according to claim 7, comprising a plurality of said selection switches, wherein individual display means for a display of a status or switching state are associated with each of said selection switches, said display means having several functions.

9. Touch switch layout according to claim 7, comprising at least three of said selection switches, at least two of said at least three selection switches being regularly arranged about a central point, said display means being located in an area within said touch switch layout and a state of said several electric loads being displayed in alternating manner by said display means.

10. Touch switch layout according to claim 9, wherein said display means at a particular time statically only displays a state of one of said electric loads and by switching over said display means or by selecting another one of said electric loads, a state of another one of said electric loads is displayable.

11. Touch switch layout according to claim 9, wherein said display means are constructed for displaying several different states of at least one of said electric loads.

12. Touch switch layout according to claim 11, wherein said different states of said at least one electric load displayed by said display means include at least one of a level of electric power of said electric load and a level of residual heat existing in said electric load when said electric loads comprise electric heating appliances.

13. Touch switch layout according to claim 7, wherein the functions of said display means in an electric hob are a power display and a heating display for individual hotplates, the display of the different functions taking place through a selection LED.

14. Touch switch layout according to claim 13, wherein said display of said function differences takes place by specific, different display modes of said display means.

15. Touch switch layout according to claim 7, wherein said display means comprise at least one LED.

16. Touch switch layout according to claim 15, wherein said display means have a bar-like display with several of said LEDs.

17. Touch switch layout according to claim 7, wherein said display means have a seven-segment display for alphanumeric display purposes.

18. Touch switch layout according to claim 1, wherein the touch switch layout is constructed for control of a hob having several hotplates, wherein a common control switch for the power and a LED display are provided in a central area of the touch switch layout and one of said selection switches is provided for each of said hotplates in a regular arrangement around said central area, each selection switch having a complimentary power setting function.

19. Touch switch layout according to claim 18, wherein a further LED as an active display is associated with each said selection switch provided for each of said hotplates.

20. A method for the control of at least one touch switch for an electrical appliance with at least one electric load, electric power of an electric load being settable by a power setting in a direction towards higher power or lower power,

the method comprising the steps of:

by a single operation of a touch switch, selecting an electric load and,

by a further operation of said touch switch, setting the electric power of the selected electric load in a single direction.

21. Method according to claim 20, wherein the power of the selected electric load is set in the other direction by a further touch switch.

22. Method according to claim 21, wherein the further touch switch is without a selection function.

23. Method according to claim 21, wherein the touch switch for setting the electric power in the other direction is provided as a common touch switch for several of the electric loads.

24. Method according to claim 23, wherein the selection of the selected electric load is carried out prior to the operation of the common touch switch and setting the power setting.

25. Method according to claim 20, wherein a plurality of touch switches are provided, and wherein a protection against unintentional or unauthorized operation is provided by a necessarily combined operation of at least two of the touch switches simultaneously.

26. Method according to claim 20, wherein a plurality of touch switches are provided, and wherein a protection against unintentional or unauthorized operation is provided by a necessarily combined operation of ax least two of the touch switches successively.

27. Method according to claim 20, wherein the selected electric load is with an additional electric load, a switching in of the additional electric load being associated with the selected electric load taking place by setting a highest power setting for the selected electric load and a subsequent setting of an even higher power stage.

28. Method according to claim 20, wherein the touch switch comprises a contact-sensitive sensor surface.