CPC H02K 9/22 (2013.01) [H02K 1/22 (2013.01)] | 19 Claims |
1. A rotor plate comprising:
a plate body comprising a first part having a first hole at a center thereof, and a second part having a second hole at a center thereof, the second part having a diameter corresponding to the first part, and connected to the first part in a first direction that is an axial direction perpendicular to the first part, and a diameter of the second hole is larger than a diameter of the first hole;
a first slot recessed on an outer peripheral surface of the plate body, and a length of the first slot along the first direction being smaller than a length of the plate body along the first direction;
a second slot recessed on the outer peripheral surface of the plate body, and a length of the second slot along the first direction corresponding to a length of the plate body along the first direction; and
a first plate passage formed on a wall of the first part in a second direction that is opposite to the first direction, and connecting the first slot and the first hole.
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