CPC H02K 1/165 (2013.01) [H02K 1/02 (2013.01); H02K 3/18 (2013.01); H02K 3/28 (2013.01); H02K 2213/03 (2013.01)] | 10 Claims |
1. A permanent magnet motor comprising:
a stator comprising a stator core and a stator winding, the stator core comprising a plurality of stator teeth arranged along a peripheral direction of the stator core, a stator slot being defined between two adjacent stator teeth, and the stator winding being wound on the stator tooth; and
a rotor spaced apart from the stator in a radially inner/outer direction, and comprising a rotor core and a permanent magnet embedded in the rotor core, wherein a maximum distance between an outer peripheral contour of a cross section of the rotor and a center of the cross section of the rotor is D1, an axial length of the rotor core is L, a rated power of the permanent magnet motor is P, wherein D1, L and P satisfy: D1/L≥1.7 and P/(D12×L)≥8.5(W/cm3), wherein a unit of P is W and units of D1 and L are cm.
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