Motor vehicle key contains a coil, for inductive coupling to a power supply, with illumination and a variety of functions

摘要

The motor vehicle key (1), when inserted into the lock, is coupled to an electrical supply by induction to illuminate the visible part of the key. The key has a transparent housing, with an operating unit at the upper side (2), containing a coil (21) linked to a supply circuit (22) for a LED (23) with inductive supply from the electromagnetic field from a wound coil (25).