Patent ID: 7075200
Filing Date: 2006-07-11
Classification: H02K

Abstract:
1. A direct-driven magnetic rotating apparatus, comprising: a rotational shaft; a rotational body fixed to the rotational shaft and including a plurality of permanent magnets disposed radially outwards at a prescribed angle around a rim of an outer periphery, wherein each permanent magnet contains a plurality of parallel permanent magnet plates; and a plurality of electromagnets disposed in vicinity of the outer periphery of the rotational body so as to be periodically opposed to at least one permanent magnet in the vicinity thereof, wherein the at least one permanent magnet has at least one permanent magnet plate arranged in the last position with respect to a rotating direction with a magnetic force that is larger than a magnetic force of other permanent magnet plates of the at least one permanent magnet so that the permanent magnets are energized by the repulsive force of the electromagnets.