| 摘要 |
PURPOSE:To obtain a magnet rotor having a strong magnetic force in such a way as to apply effectively a magnetic material and its performance. CONSTITUTION:A magnet rotor with N and S magnetic poles, which are alternately arranged in the circumferential direction, is constituted of N and S magnetic pole units 1 and 2. The units 1 and 2 respectively have circular ring-shaped bases 1a and 2a and a plurality of magnetic pole pieces 1b... and 2b..., which are extended from the bases 1a and 2a to the axis direction at prescribed intervals in the circumferential direction. Each magnetic pole piece is magnetized in such a way that a prescribed pole appears on the diametral outer side surface. The units 1 and 2 are combined with each other in such a way that the magnetic pole pieces of both units are alternately arranged in the circumferential direction in a state that the unit 1 and the unit 2 share the axial line. |
