Patent ID: 11863021
Assignee: LG ELECTRONICS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 0:
1. An electric motor comprising:
a stator;
a rotor configured to rotate relative to the stator, the rotor comprising a rotating shaft, a rotor core coupled to the rotating shaft, and a plurality of permanent magnets that are inserted into the rotor core and spaced apart from one another in a circumferential direction;
an inertial core made of a magnetic material and spaced apart from the rotor in an axial direction; and
a connection part made of a non-magnetic material and disposed between the rotor and the inertial core in the axial direction, the connection part being disposed at an axial end portion of the rotor core,
wherein the connection part comprises a single body that comprises:
a plurality of first fixing portions coupled to the axial end portion of the rotor core,
a plurality of second fixing portions spaced apart from the plurality of first fixing portions in the axial direction and coupled to the inertial core, and
a plurality of link portions that extend toward one another and are bent from the plurality of first fixing portions and the plurality of second fixing portions, each of the plurality of link portions connecting one of the plurality of first fixing portions to one of the plurality of second fixing portions.