PROXIMITY SWITCH ASSEMBLY HAVING PLIABLE SURFACE AND DEPRESSION

摘要

A proximity switch assembly and method for detecting activation of a proximity switch assembly is provided. The assembly includes a plurality of proximity switches each having a proximity sensor providing a sense activation field and control circuitry processing the activation field of each proximity switch to sense activation. A pliable material overlays the proximity sensors. A depression is formed in a substrate between the pliable material and the sensor. A groove may extend into the substrate between adjacent proximity switches. The pliable material may further include an elevated portion.

主权项

1. A proximity switch assembly comprising:
a rigid substrate having top and bottom surfaces; a proximity sensor disposed on the substrate; a pliable material disposed on the top surface of the substrate; and a depression within the top surface of the substrate in a region between the pliable material and the proxy sensor, wherein the depression is larger than the proximity sensor.