Patent ID: 11888355
Assignee: LG INNOTEK CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 10:
11. A rotor comprising:
a rotor core; and
a plurality of first magnets and second magnets disposed along an outer circumferential surface of the rotor core,
wherein the first magnet includes a first inner circumferential surface in contact with the rotor core and a first outer circumferential surface disposed opposite to the first inner circumferential surface,
the second magnet includes a second inner circumferential surface in contact with the rotor core and a second outer circumferential surface disposed opposite to the second inner circumferential surface,
a length (l1) of the inner circumferential surface of the first magnet is equal to a length (l2) of the inner circumferential surface of the second magnet, and
a position of a center between a center (C) of the rotor core and the outer circumferential surface of the first magnet and a position of a center between the center (C) of the rotor core and the outer circumferential surface of the second magnet are different in a radial direction,
with respect to a thickness which is a distance from the inner circumferential surface of the first magnet to the outer circumferential surface of the first magnet, a thickness of a central portion of the first magnet and a thickness of an end portion of the first magnet are different,
with respect to a thickness which is a distance from the inner circumferential surface of the second magnet to the outer circumferential surface of the second magnet, a thickness of a central portion of the second magnet and a thickness of an end portion of the second magnet are different, and
the thickness of the end portion of the first magnet is less than the thickness of the end portion of the second magnet disposed to face to the end portion of the first magnet.