Patent ID: 11863048
Assignee: KIA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method for correcting a rotation imbalance of a rotor, the method comprising:
forming a plurality of balancing structures along an inner circumference portion of a rotor core, each of the plurality of the balancing structures comprising a first portion formed to be spaced apart from the rotor core by a predetermined gap and a second portion connecting the first portion to the rotor core, wherein a plurality of permanent magnets is inserted into an outer circumference portion of the rotor core;
identifying a mass imbalance point in the rotor core; and
selectively removing one or more of the first portions of one or more of the balancing structures at a position corresponding to the identified mass imbalance point.