| 摘要 |
PROBLEM TO BE SOLVED: To offer a motor using a permanent magnet which improves generated thrust by elevating the limit of magnetic saturation or preventing decrease in magnetic flux and reduces heat generation by suppressing the occurrence of an eddy current in a magnetic pole. SOLUTION: Since an N-pole magnetic pole 5 is so made as to widen more the more it goes away from a stator 1 on the side of an N-pole magnetic yoke 3a and an S-pole magnetic pole 6 is so made as to widen more the more it goes away from the stator 1 on the side of an S-pole magnetic yoke 3b, the limit of magnetic saturation goes high at the entrance of a yoke being the connection between the N-pole magnetic pole and the N-pole magnetic yoke, and the thrust of the motor improves. COPYRIGHT: (C)2005,JPO&NCIPI
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