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：US08853899B2

公开(公告)日：2014-10-07

申请号：US13947962

申请日：2013-07-22

Applicant: LG Innotek Co., Ltd.

Inventor： Jae Hyun Park ,  Jin Seung Yoo

IPC: H02K7/00

CPC classification number: H02K7/003 ,  G11B17/0282 ,  G11B19/2009

Abstract: A spindle motor including a base, a bearing housing supported on the base, a bearing provided within the bearing housing, a rotating shaft rotatably supported by the bearing, a stator including a core fixed to the bearing housing and coils wound around the core, a rotor including a rotor yoke fixed to the rotating shaft, and a first magnet installed on the rotor yoke facing the stator, a turntable positioned on the rotor yoke, rotating together with the rotating shaft, a center guide member coupled to the rotating shaft at an upper side of the turntable, an elastic member disposed between the turntable and the center guide member for elastically supporting the center guide member.

Abstract translation: 一种主轴电动机，包括基座，支撑在所述基座上的轴承壳体，设置在所述轴承壳体内的轴承，由所述轴承可旋转地支撑的旋转轴，定子，所述定子包括固定到所述轴承壳体的芯和缠绕在所述芯上的线圈， 转子，其包括固定到所述旋转轴的转子轭，以及安装在面向所述定子的所述转子轭上的第一磁体，位于所述转子轭上的转盘，与所述旋转轴一起旋转;中心引导构件， 转台的上侧，设置在转盘和中心引导构件之间的弹性构件，用于弹性地支撑中心引导构件。