Capacitive proximity switch, and domestic appliance comprising the same
First Claim
1. A capacitive proximity switch, comprising:
- an electrically conducting sensor area and an electrically insulating cover plate covering said sensor area and forming part of a capacitor with a capacitance that changes upon being approached;
a support disposed at a spacing distance from said electrically insulating cover plate;
an evaluation circuit;
an electrically conductive body connecting said sensor area with said evaluation circuit and being disposed between said electrically insulating cover plate and said support; and
at least one electronic component of said evaluation circuit disposed on said support and protruding into a cavity surrounded by said electrically conductive body.
3 Assignments
0 Petitions
Accused Products
Abstract
A capacitive proximity switch includes an electrically conductive sensor area, which is covered by an electrically-insulating cover plate, as part of a capacitor having a capacitance which varies as a result of proximity. An associated evaluation circuit is provided, and an electrically-conducting body, via which the sensor area is connected to the evaluation circuit and which is arranged between the electrically-insulating cover plate and a mount disposed at a distance therefrom. A domestic appliance includes such a proximity switch. At least one electronic component of the evaluation circuit is arranged on the mount such that it protrudes into a cavity, which is surrounded by the electrically conductive body.
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Citations
12 Claims
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1. A capacitive proximity switch, comprising:
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an electrically conducting sensor area and an electrically insulating cover plate covering said sensor area and forming part of a capacitor with a capacitance that changes upon being approached; a support disposed at a spacing distance from said electrically insulating cover plate; an evaluation circuit; an electrically conductive body connecting said sensor area with said evaluation circuit and being disposed between said electrically insulating cover plate and said support; and at least one electronic component of said evaluation circuit disposed on said support and protruding into a cavity surrounded by said electrically conductive body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification