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    • 66. 发明公开
    • 스핀들 모터 및 이를 포함하는 하드 디스크 드라이브
    • 主轴电机和硬盘驱动器,包括它们
    • KR1020140080839A
    • 2014-07-01
    • KR1020120149147
    • 2012-12-20
    • 삼성전기주식회사
    • 오송본윤관수이금경
    • G11B19/20H02K5/173F16C17/10G11B5/00
    • G11B33/148G11B19/2009H02K5/1677
    • A spindle motor according to an embodiment of the present invention includes: a shaft including a fixing groove on the lower part; a lower thrust member which includes a fixing unit inserted into the fixing groove, a disc unit extended from the fixing unit to the outside in a radial direction, and an extension unit extended from the disc unit in a shaft direction; a base member coupled to the extension unit; a rotation member which has a bearing gap and the shaft and is arranged to be rotated around the shaft; a first sealing unit arranged between the upper surface of the extension unit and the rotation member; and a second sealing unit arranged between the inner circumferential surface of the base member and the outer circumferential surface of the rotation member.
    • 根据本发明实施例的主轴电动机包括:轴,其在下部具有固定槽; 下推力构件,其包括插入到固定槽中的固定单元,从固定单元沿径向方向延伸到外侧的盘单元和从轴单元沿轴向延伸的延伸单元; 耦合到所述扩展单元的基座构件; 旋转构件,其具有轴承间隙和所述轴,并且被布置成围绕所述轴旋转; 布置在所述延伸单元的上表面和所述旋转构件之间的第一密封单元; 以及设置在所述基座的内周面与所述旋转部件的外周面之间的第二密封部。