Patent ID: 11929648
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 4:
5. The electric motor according to claim 1, wherein
the at least one first hole comprises six first holes arranged in a circumferential direction,
the at least one second hole comprises six second holes arranged in a circumferential direction,
the first rotor core includes a first shaft insertion hole in which a shaft is inserted, a third region that is a region surrounded by the six first holes, and a plurality of holes arranged in a circumferential direction in the third region,
the second rotor core includes a second shaft insertion hole in which the shaft is inserted and a fourth region that is a region surrounded by the six second holes, and
a volume of the third region is smaller than a volume of the fourth region.