公开(公告)号：US11469641B2

公开(公告)日：2022-10-11

申请号：US16636142

申请日：2018-07-30

Applicant: LG INNOTEK CO., LTD.

Inventor： Ji Hoon Han ,  Il Sik Won ,  Jin Seung Yoo

IPC: H02K5/08 ,  H02K11/215 ,  H02K1/30 ,  H02K7/00

Abstract: The present invention provides a rotor comprising: a rotor core; a plurality of magnets disposed outside the rotor core; and a molding part disposed outside the plurality of magnets, wherein the rotor core includes a plurality of guide protrusions disposed between the plurality of magnets, and the distance from the center of the rotor core to the outer surface of the molding part passing across the center of one of the guide protrusions is shorter than the distance from the same to the outer surface of the molding part passing across the center of one of the plurality of magnets.

公开(公告)号：US11757318B2

公开(公告)日：2023-09-12

申请号：US17261120

申请日：2019-07-03

Applicant: LG INNOTEK CO., LTD.

Inventor： Ji Hoon Han

IPC: H02K1/28 ,  H02K1/278 ,  H02K7/00

CPC classification number: H02K1/28 ,  H02K1/278 ,  H02K7/003 ,  H02K2213/03

Abstract: One embodiment of the present invention relates to a rotor and a motor having same, the rotor comprising: a rotor core; and a plurality of magnets arranged to be spaced apart from each other on an outer circumferential surface of the rotor core, wherein the rotor core includes: a body; and protrusions protruding obliquely inward at a predetermined angle from an inner circumferential surface of the body, wherein a predetermined gap (G1) is formed between the inner circumferential surface of the body and the end of each of the protrusions. Accordingly, the rotor and the motor having the same may minimize the amount of change in the outer circumferential surface of the rotor core by using the protrusions. As a result, it is possible to inhibit separation of the magnets attached to the outer circumferential surface of the rotor core.