Domestic appliance operating device
View Patent ↗A domestic-appliance-operating device, in particular a hob-operating device, includes an operating panel having a touch operating surface, a sensor plate which is arranged beneath the touch operating surface, and a touch sensor unit. A signal-transmission unit connects the sensor plate to the touch sensor unit in an electrically conductive manner by a conducting element and has at least one screening unit.
1. A domestic-appliance-operating device, comprising:
an operating panel having a touch operating surface;
a sensor plate arranged beneath the touch operating surface;
a touch sensor unit, wherein the sensor plate and the touch sensor unit are arranged in spaced-apart relationship on a plane parallel to the operating panel; and
a signal-transmission unit extending in a direction of the plane parallel to the operating unit and connecting the sensor plate to the touch sensor unit in an electrically conductive manner by a conducting element, said signal-transmission unit having at least one screening unit.
2. The domestic-appliance-operating device of claim 1 , constructed in the form of a hob-operating device.
3. The domestic-appliance-operating device of claim 1 , wherein the sensor plate and the conducting element are formed in one piece as a conductive coating on the operating panel.
4. The domestic-appliance-operating device of claim 1 , wherein the screening unit comprises at least one electrically conductive element, connected to a reference voltage terminal, which is provided to shield an electrical field of the conducting element.
5. The domestic-appliance-operating device of claim 4 , wherein the reference voltage terminal is an earth terminal.
6. The domestic-appliance-operating device of claim 4 , wherein the electrically conductive element is arranged at least partially on a side adjacent to the conducting element in a parallel direction to the touch operating surface.
7. The domestic-appliance-operating device of claim 4 , wherein the electrically conductive element is arranged at least partially between the operating panel and the conducting element.
8. The domestic-appliance-operating device of claim 1 , wherein the screening unit comprises at least one dielectric element which is provided to electrically shield the conducting element.
9. The domestic-appliance-operating device of claim 8 , wherein the dielectric element is arranged at least partially between the operating panel and the conducting element.
10. The domestic-appliance-operating device of claim 1 , wherein the signal-transmission unit comprises a spring element which is provided to connect the conducting element to the touch sensor unit in an electrically conductive manner.
11. The domestic-appliance-operating device of claim 1 , wherein the sensor plate includes a conductive coating on an underside the operating panel, and
wherein the conducting element of the signal-transmission unit includes a conductive coating on the underside the operating panel that extends in the direction of the plane parallel to the operating unit and connects the conductive coating of the sensor plate to the touch sensor unit.
12. The domestic-appliance-operating device of claim 11 , wherein the touch sensor unit is spaced apart from the operating panel in a vertical direction.
13. A domestic appliance, comprising a domestic-appliance-operating device including an operating panel having a touch operating surface, a sensor plate arranged beneath the touch operating surface, a touch sensor unit, wherein the sensor plate and the touch sensor unit are arranged in spaced-apart relationship on a plane parallel to the operating panel, and a signal-transmission unit extending in a direction of the plane parallel to the operating unit and connecting the sensor plate to the touch sensor unit in an electrically conductive manner by a conducting element, said signal-transmission unit having at least one screening unit.
14. The domestic appliance of claim 13 , constructed in the form of a glass ceramic hob.
15. The domestic appliance of claim 13 , wherein the domestic-appliance-operating device is a hob-operating device.
16. The domestic appliance of claim 13 , wherein the sensor plate and the conducting element are formed in one piece as a conductive coating on the operating panel.
17. The domestic appliance of claim 13 , wherein the screening unit comprises at least one electrically conductive element, connected to a reference voltage terminal, which is provided to shield an electrical field of the conducting element.
18. The domestic appliance of claim 17 , wherein the reference voltage terminal is an earth terminal.
19. The domestic appliance of claim 17 , wherein the electrically conductive element is arranged at least partially on a side adjacent to the conducting element in a parallel direction to the touch operating surface.
20. The domestic appliance of claim 17 , wherein the electrically conductive element is arranged at least partially between the operating panel and the conducting element.
21. The domestic appliance of claim 13 , wherein the screening unit comprises at least one dielectric element which is provided to electrically shield the conducting element.
22. The domestic appliance of claim 21 , wherein the dielectric element is arranged at least partially between the operating panel and the conducting element.
23. The domestic appliance of claim 13 , wherein the signal-transmission unit comprises a spring element which is provided to connect the conducting element to the touch sensor unit in an electrically conductive manner.
24. The domestic appliance of claim 13 , wherein the sensor plate includes a conductive coating on an underside the operating panel, and
wherein the conducting element of the signal-transmission unit includes a conductive coating on the underside the operating panel that extends in the direction of the plane parallel to the operating unit and connects the conductive coating of the sensor plate to the touch sensor unit.
25. The domestic appliance of claim 24 , wherein the touch sensor unit is spaced apart from the operating panel in a vertical direction.