公开(公告)号：US20140285921A1

公开(公告)日：2014-09-25

申请号：US13948729

申请日：2013-07-23

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Sang Kyu LEE ,  Jin Seok Jang ,  Hong Joo Lee

IPC: H02K1/27 ,  H02K1/17

CPC classification number: H02K7/09 ,  H02K7/085

Abstract: There is provided a spindle motor including: a stator core fixedly installed on a stator; a driving magnet having a center thereof disposed to coincide with that of the stator core in an axial direction; and a rotor hub including a hub body having a disk shape, a magnet mounting part extended from an edge of the hub body in a downward axial direction and having the driving magnet installed on an inner peripheral surface thereof, and a disk supporting part extended from the magnet mounting part in a radial direction, wherein the stator includes a base member, and a pulling magnet is installed on at least one of a lower surface of the disk supporting part and an upper surface of the base member disposed to face the lower surface of the disk supporting part.

Abstract translation: 提供了一种主轴电动机，其包括：固定地安装在定子上的定子铁心; 驱动磁体，其中心沿轴向设置成与定子芯的中心一致; 以及转子轮毂，其包括具有圆盘形状的轮毂体，从所述轮毂体的边缘向下轴向延伸并且具有安装在其内周面上的驱动磁体的磁体安装部，以及从所述轮毂主体的内周面延伸的盘支撑部 所述磁体安装部分沿径向方向，其中所述定子包括基部构件，并且拉动磁体安装在所述盘支撑部分的下表面和所述基部构件的上表面中的至少一个上，所述上表面设置成面向所述下表面 的盘支撑部。