| CPC H02K 1/20 (2013.01) [H02K 1/16 (2013.01); H02K 9/19 (2013.01)] | 10 Claims |
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1. A motor, comprising:
a rotary shaft;
a rotor that rotates with the rotary shaft;
a stator core located around the rotor, the stator core including opposite end faces in an axial direction of the rotary shaft;
a stator coil located on an inner circumferential portion of the stator core; and
a shower pipe located above the stator core, the shower pipe supplying a liquid refrigerant to an upper part of an outer circumferential surface of the stator core, wherein
the upper part of the outer circumferential surface of the stator core includes a circumferential groove and axial grooves,
the circumferential groove extends in a circumferential direction of the stator core,
the axial grooves are located at positions that are spaced apart from each other in the circumferential direction, and extend in a direction that intersects the circumferential groove,
the axial grooves each open in the opposite end faces of the stator core, and
each of the axial grooves includes opposite ends in the axial direction, the opposite ends having a groove width that becomes narrower as the opposite ends become farther from the circumferential groove.
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