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    Spin drive motor for a disk storage device
    11.
    发明授权
    Spin drive motor for a disk storage device 失效
    用于磁盘存储设备的旋转驱动电机

    公开(公告)号：US5774302A

    公开(公告)日：1998-06-30

    申请号：US468096

    申请日：1995-06-06

    Applicant: Dieter Elsaesser ,  Johann Von Der Heide

    Inventor： Dieter Elsaesser ,  Johann Von Der Heide

    IPC: G11B17/038 ,  G11B19/20 ,  G11B25/04 ,  H02K3/28 ,  H02K5/10 ,  H02K5/124 ,  H02K5/167 ,  H02K5/173 ,  H02K5/22 ,  H02K7/08 ,  H02K7/14 ,  H02K11/00 ,  H02K21/22 ,  H02K29/08 ,  H02P6/08 ,  G11B17/08

    CPC classification number: G11B25/043 ,  G11B17/038 ,  G11B19/20 ,  G11B19/2009 ,  H02K11/01 ,  H02K11/40 ,  H02K21/22 ,  H02K29/08 ,  H02K5/10 ,  H02K5/124 ,  H02K5/1735 ,  H02K5/1737 ,  H02K5/225 ,  H02K7/085 ,  H02K7/086 ,  H02K7/14 ,  H02P6/085 ,  H02K2211/03 ,  H02K3/28 ,  H02K5/167 ,  H02K7/08 ,  H02P2209/07

    Abstract: A disk storage drive for a disk storage device having a clean chamber for a storage disk having a central opening is provided with a brushless drive motor. The drive motor includes a stator and a winding on the stator and further includes a shaft aligned with the rotation axis of said motor, and a magnetically conducting member supported for rotation about the rotation axis and having an inner wall coaxially surrounding the stator. A magnet fixed to the inner wall of the magnetically conducting member is radially spaced from the stator. The disk storage device further includes a hub positioned within the clean chamber and contiguous with the magnetically conducting member so that the hub and the magnetically conducting member together form an outer rotor of the drive motor. The outer rotor has a radially extending flange having a surface which supports said storage disk. A support member contiguous with a portion of a partition of the clean chamber supports the shaft and has a recess receiving a portion of said radially extending flange, whereby the spacing between opposing walls of the clean chamber is reduced. Further, the magnetically conducting member comprises magnetic shield means at least peripherally surrounding the stator and at one end radially extending to the bearing and shaft assembly, and the rotor has a radially extending inner wall spaced closely adjacent to said stator windings, whereby said disk storage device is compact in a direction along said disk rotation axis while said motor magnet is axially separated from the plane of said storage disk.

    Abstract translation: 具有用于具有中心开口的存储盘的清洁室的盘存储装置的盘存储驱动器设置有无刷驱动马达。 驱动电动机包括定子和定子上的绕组，并且还包括与所述电动机的旋转轴线对齐的轴和用于围绕旋转轴线旋转并且具有同轴地围绕定子的内壁的导磁构件。 固定在导磁部件的内壁上的磁体与定子径向间隔开。 磁盘存储装置还包括定位在清洁室内并与导磁部件邻接的毂，使得毂和导磁部件一起形成驱动电动机的外转子。 外转子具有径向延伸的凸缘，其具有支撑所述存储盘的表面。 与清洁室的隔板的一部分邻接的支撑构件支撑轴并且具有容纳所述径向延伸的凸缘的一部分的凹部，由此清洁室的相对壁之间的间隔减小。 此外，导磁构件包括磁屏蔽装置，其至少周向围绕定子并且在径向延伸到轴承和轴组件的一端，并且转子具有与所述定子绕组紧密相邻的径向延伸的内壁，由此所述磁盘存储 装置沿着所述盘旋转轴线的方向紧凑，而所述电动机磁体与所述存储盘的平面轴向分离。

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