Patent ID: 6455969
Filing Date: 2002-09-24
Classification: H02K

Abstract:
A single-stator-double-rotor rotating motor, comprising one upper-layer rotor, one intermediate-layer armature and one lower-layer rotor; wherein said upper-layer rotor and lower-layer rotor are embedded with the same number of magnets, stator electrodes of the same number as the number of magnets are disposed on said intermediate-layer armature; characterized in that a skew symmetry exists between a magnet of the upper-layer rotor and a corresponding magnet of the lower-layer rotor, and the upper-layer rotor and the lower-layer rotor are rotated in opposite directions by changing the direction of the current flowing through exciting coils of said stator electrodes every T/N of time, wherein said exciting coils are electrically connected in series, T is a rotation period of the upper-layer rotor, and N is the number of the magnets, each of said stator electrodes has flanges respectively on its top and bottom sides for use in winding start/kick coils, each of said start/kick coils is excited when the upper-layer rotor, the intermediate-layer armature and the lower-layer rotor are situated in a dead zone, and currents of neighboring start/kick coils have opposite directions to each other for keeping the continuation of current variations when the directions of currents flowing through the exciting coils of the stator electrodes are changed.