SPINDLE MOTOR AND STORAGE DISK DRIVE
    1.
    发明申请
    SPINDLE MOTOR AND STORAGE DISK DRIVE 有权
    主轴电机和存储盘驱动器

    公开(公告)号:US20130120868A1

    公开(公告)日:2013-05-16

    申请号:US13739415

    申请日:2013-01-11

    申请人: Nidec Corporation

    IPC分类号: H02K7/08 G11B15/00

    摘要: A motor includes a seal cap and a tubular portion. The seal cap includes a first seal cap lower surface which is an annular surface facing axially downward, and a second seal cap lower surface which is an annular surface facing axially downward and arranged radially outward of the first seal cap lower surface. The tubular portion includes a first tubular portion upper surface which is an annular surface arranged axially opposite to the first seal cap lower surface, and a second tubular portion upper surface which is an annular surface arranged radially outward of the first tubular portion upper surface and in contact with the second seal cap lower surface. The first tubular portion upper surface includes an oil-repellent film region covered with an oil-repellent film. A substantially annular radially extending gap is defined between the first tubular portion upper surface and the first seal cap lower surface.

    摘要翻译: 马达包括密封盖和管状部分。 密封盖包括第一密封盖下表面,其是面向轴向向下的环形表面,以及第二密封帽下表面,第二密封帽下表面是面向轴向向下并且布置在第一密封盖下表面的径向外侧的环形表面。 管状部分包括第一管状部分上表面,该第一管状部分上表面是与第一密封帽下表面轴向相对布置的环形表面,以及第二管状部分上表面,其是设置在第一管状部分上表面的径向外侧的环形表面, 与第二密封盖下表面接触。 第一管状部分上表面包括被拒油膜覆盖的拒油膜区域。 在第一管状部分上表面和第一密封帽下表面之间限定基本环形的径向延伸的间隙。

    SPINDLE MOTOR AND STORAGE DISK DRIVE
    2.
    发明申请
    SPINDLE MOTOR AND STORAGE DISK DRIVE 有权
    主轴电机和存储盘驱动器

    公开(公告)号:US20130128379A1

    公开(公告)日:2013-05-23

    申请号:US13739402

    申请日:2013-01-11

    申请人: Nidec Corporation

    IPC分类号: H02K7/08 G11B19/00

    摘要: A motor includes a stationary portion and a rotating portion. The stationary portion includes a shaft portion and an upper thrust portion. The upper thrust portion includes a tubular first outer circumferential surface arranged radially outside the upper thrust portion, and a tubular second outer circumferential surface arranged above the first outer circumferential surface. The rotating portion includes a sleeve portion, a tubular portion, and an annular cover portion. The annular cover portion includes a plate portion and an inner annular projecting portion arranged to project upward or downward. An inner circumferential surface of the inner annular projecting portion is arranged above an inner circumferential surface of the tubular portion. An upper seal portion includes a surface of a lubricating oil located therein. The inner circumferential surface of the inner annular projecting portion and the second outer circumferential surface are arranged opposite to each other with an axially extending gap therebetween.

    摘要翻译: 电动机包括固定部分和旋转部分。 固定部分包括轴部分和上推力部分。 上推力部包括设置在上推力部的径向外侧的管状的第一外周面和配置在第一外周面的上方的管状的第二外周面。 旋转部分包括套筒部分,管状部分和环形盖部分。 环形盖部分包括板部分和布置成向上或向下突出的内环形突出部分。 内环形突出部的内周面设置在管状部的内周面的上方。 上密封部分包括位于其中的润滑油的表面。 内环形突出部和第二外周面的内周面彼此相对设置,在其间具有轴向延伸的间隙。