| 摘要 |
<p>A touch-sensitive switch is disclosed whose electrical circuit is provided on a printed board ( 28 ). The touch-sensitive switch is coupled to a touch-sensitive switching area ( 12 ) on a panel or cover ( 11 ) of an electrical appliance via a sensor element ( 44 ). The sensor element ( 44 ) consists of a flexible, electrically conducting plastic or foam material. Two parts ( 24, 25 ) of the sensor element ( 44 ) are received in a receiving element or receiving cage ( 18 ) which is produced from an electrically insulating, transparent plastic. Said receiving element or cage electrically insulates the two sensor element parts ( 24, 25 ) from each other by means of a dividing wall ( 21 ) and encases them from the exterior, thereby providing a sufficiently long air and leakage path between current-carrying elements and an opening ( 16 ) in the panel. A lighting element projects through said path and guides the light emitted by an LED ( 29 ) to a light outlet in the switching area ( 12 ) in the manner of a light guide. Alternatively, an interior casing ( 23 ) can be provided downstream of the opening ( 16 ) and sealingly surrounds the lighting element ( 15 ), across the air and leakage path, and at the same time retains the sensor element ( 44 ).</p> |
