Patent ID: 7182493
Filing Date: 2007-02-27
Classification: B60C,B60Q,B62J,Y10S

Abstract:
1. An automatic dual-control light emitting assembly for vehicle wheels, comprising: a casing having a first and a second end sections, said first end section internally defining a receiving space for receiving at least one battery cell therein; a circuit board being mounted in said first end section of said casing and having two end surfaces, namely, a first and a second end surfaces; said first end surface having a light-emitting device provided thereon, said second end surface being oriented toward said receiving space of said casing, and being provided along a radially inner and a radially outer areas with a first and a second annular metal contacts, respectively; said light-emitting device having two electrodes, which are separately connected to said first and said second annular metal contacts, and said second annular metal contact being electrically connected to a first pole of said at least one battery cell via said casing; a lead frame being mounted in said receiving space of said casing to be located between said first and said second annular metal contacts; said lead frame having an end electrically connected to a second pole of said at least one battery cell; and a conducting elastic metal contact member having an end fixed to said second end surface of said circuit board and electrically connected to said first annular metal contact; and said elastic metal contact member being centrifugally biased to contact with said lead frame when said vehicle wheel mounted with said light emitting assembly rotates; said light emitting assembly for vehicle wheel being characterized in a light sensor mounted on said circuit board between said two poles of said at least one battery cell to, together with said light-emitting device, constitute a sensing circuit for controlling on and off of a circuit between the first pole of said at least one battery cell and said light-emitting device according to a brightness of an environment in which said vehicle wheel rotates.