Patent ID: 7573172
Filing Date: 2009-08-11
Classification: H02K

Abstract:
1. A magnetic drive apparatus, which comprises a rotor having a rotor magnetic flux generator; and a stator having a stator magnetic flux generator, and a stator magnetic guidepath for guiding magnetic flux from the stator magnetic flux generator to said rotor, and which rotationally drives said rotor relative to said stator by controlling the flow of the magnetic flux of said stator magnetic flux generator, said magnetic drive apparatus further comprising: magnetic flux controlling means, which bridges a first gap between the end tip of said stator magnetic guidepath on said rotor side, and a magnetic pole tip arranged at a prescribed angular location on the periphery of said rotor, by having respective stacking parts on the end tip and magnetic pole tip, wherein said magnetic flux controlling means has a function for magnetically reconnecting to said magnetic pole tip after controlling the flow of magnetic flux, which is blocked by said first gap.