| 简介 |
PROBLEM TO BE SOLVED : To provide the permanent magnet motor with improved torque and performance of the motor, by constituting the permanent magnet motor with a mixed use of a rare-earth magnet of large energy at a high cost, and to provide a ferrite magnet of small energy at a low cost.
SOLUTION : The permanent magnet motor is constituted, including a stator 50 winding a coil and a rotor 60 arranging a magnet 65, having mutually different residual magnetic flux density or energy at a position corresponding to the stator 50.
COPYRIGHT : (C)2006, JPO&NCIPI |
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