| 摘要 |
PROBLEM TO BE SOLVED: To lessen the torque irregularity by thickening the flange of a stator pole. SOLUTION: This direct motor structure is so structurized as to lessen the variation of magnetic flux at rotation of a rotor (5) by making the thickness (L2) of the flange (7) of each stator pole (3) provided on a printed board (1) to be one half to one third the width (W) of a pole. COPYRIGHT: (C)2008,JPO&INPIT
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