Magnetic fluid seal apparatus with electroplated and non-electroplated
coatings
    1.
    发明授权
    Magnetic fluid seal apparatus with electroplated and non-electroplated coatings 失效
    具有电镀和非电镀涂层的磁性流体密封装置

    公开(公告)号:US5536020A

    公开(公告)日:1996-07-16

    申请号:US336504

    申请日:1994-11-09

    摘要: A spindle motor comprising a stationary member, a hub rotatably supported on the stationary member via a pair of bearing members, and a magnetic fluid seal disposed outwardly of at least one of the pair of bearing members. A conduit hole is provided to conduct between an annular space stipulated by the stationary member, the magnetic fluid seal, the rotor and the other of the bearing member and the inside of the motor. Furthermore, a magnetic fluid holder means in the magnetic fluid seal is improved.

    摘要翻译: 一种主轴电动机,包括固定构件,经由一对轴承构件可旋转地支撑在固定构件上的轮毂,以及设置在所述一对轴承构件中的至少一个的外侧的磁性流体密封件。 设置有导管孔,用于在由固定构件,磁性流体密封件,转子和轴承构件中的另一个和电机内部规定的环形空间之间进行导电。 此外,磁流体密封件中的磁性流体保持器装置得到改善。