Patent ID: 6749321
Filing Date: 2004-06-15
Classification: B60Q,B62J,H02K

Abstract:
An automatic power-generating device for decorative lamps comprising, in combination:a right cover; a left cover, with the right and left covers being integrally connected to define a closed space; a left bearing carried by the left cover inside of the closed space; a right bearing carried by the right cover inside of the closed space; a center shaft positioned between the left and right bearings and inside of the closed space; and a permanent magnet carried by one of the left cover and the center shaft, with the permanent magnet being inside the closed space; an annular coil carried by the other of the left cover and the center shaft, with the annular coil being inside of the closed space; and electric wires connected to the annular coil and extending out of the closed space, with the electric wires adapted to be connected with decorative lamps, with the right and left covers preventing the introduction of dust and vapor into the closed space and to the center shaft, to the right and left bearings, to the annular coil and to the permanent magnet, with rotation of the connected left and right covers causing rotation of the annular coil and the permanent magnet at different speeds due to the law of inertia, with the different speeds of rotation between the annular coil and the permanent magnet generating an inductive current to supply power.