公开(公告)号：US12113410B2

公开(公告)日：2024-10-08

申请号：US17808462

申请日：2022-06-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minsung Kim ,  Kwanwoo Hong ,  Jeonghoon Kang ,  Sung Han

IPC: H02K15/16 ,  H02K7/16

CPC classification number: H02K15/165 ,  H02K7/16

Abstract: A method of manufacturing a motor assembly comprising a motor and an impeller coupled to a rotation shaft of the motor, the method includes disposing a plurality of balls in a ring-shaped groove formed in a surface of the impeller; rotating the impeller at a speed greater than a resonant rotation speed to move the balls to a compensation position for compensating for an eccentricity in the motor assembly; and fixing the balls at the compensation position in the groove.