摘要 |
PROBLEM TO BE SOLVED: To provide technology for preventing and reducing vibration in a rotary electric machine. SOLUTION: A plurality of permanent magnets 5 are arranged in a circumferential direction in a rotor 1 which is freely rotatably pivoted, and a plurality of coil magnetic poles 6 are disposed in the circumferential direction in a stator 4. The rotor 1 rotates by forming a magnetic circuit with the stator 4 that is oppositely arranged across a gap 3 in the rotary electric machine. The coil magnetic pole 6 is divided into a plurality of magnetic poles in a direction perpendicular to a circumferential tangent. A circumferential position of one divided coil magnetic pole 6g in a right-angle direction and that of the other coil magnetic pole 6n in the right angle direction are mutually shifted so that they differ. The permanent magnet 5 is divided into a plurality of magnets in the direction perpendicular to the circumferential tangent. The circumferential position of one divided permanent magnet 5g in the right angle direction and that of the other permanent magnet 5n in the right angle direction are mutually shifted so that they differ. COPYRIGHT: (C)2009,JPO&INPIT
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