| 摘要 |
PROBLEM TO BE SOLVED: To suppress torque pulsation and torque change in an inner rotor type permanent magnet motor. SOLUTION: An outer rotor type permanent magnet motor comprises a rotor 4 disposed at the outer peripheral side of a stator 3, an armature formed by fixing a plurality of windings 2 via an electrical insulator on the outer radial surface of the core (armature core) only in a yoke 1; and a field formed by fixing a plurality of permanent magnets on the inner radial surface of the yoke 5 of the cylindrical shape in the rotor 4. Since the teeth of the armature core are eliminated, air gaps between the armature core and the field magnet becomes uniform. COPYRIGHT: (C)2004,JPO
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