| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor including a stator having 4n magnetic poles and 6n teeth parts, which is capable of suppressing torque ripples while improving torque. <P>SOLUTION: An angle α made between a straight line L1 passing through a rotor center O and the circumferential center position P0 of magnetic pole part 33 of a magnet and a straight line M1 passing through the rotor center O and an end part P1 on the opposite rotation direction side of a gap 36 on the opposite rotation direction side of each magnetic pole part 33 of the magnet is set so as to satisfy 90°<α<126° in an electrical angle. An angle β made between the straight line L1 passing through the rotor center O and the circumferential center position P0 of the magnetic pole part 33 of the magnet and a straight line M2 passing through the rotor center O and an end part P2 on the rotation direction side of a gap 37 on the rotation direction side of each magnetic pole part 33 of the magnet is set so as to satisfy 90°<β<126° in the electrical angle. <P>COPYRIGHT: (C)2012,JPO&INPIT |
