| 简介 |
A plurality of electromagnetic steel plates are stacked rotor core 7 are disposed in the stator, a permanent magnet embedded type electric motor, the pole of the magnet rotor core 7, provided on the outer peripheral side of the rotor core 7 in the circumferential direction of the rotor core 7 and the number of the poles is ferrite magnets 4 and ferrite magnets 4 arranged between 3 and consists of a rare earth magnet, the thickness of the rotor core 7, is larger than the thickness of the stator core 24 is formed, the axial length of the ferrite magnets 4 Lf, rare earth magnet 3 in the axial direction is formed larger than the length Ln, Ln 3 the axial length of a rare earth magnet, and a stator core 24 is nearly equal to the product of the thickness, the length Lf of the ferrite magnet 4 in the axial direction, and the rotor core 7 is nearly equal to the product of the thickness, the rare earth magnet 3, rotor core 7 with respect to the thickness direction of the stator core 24 and is disposed at a position facing the inner peripheral part. |
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