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    Spindle motor having a hydrodynamic bearing system
    4.
    发明授权
    Spindle motor having a hydrodynamic bearing system 有权
    主轴电动机具有流体动力轴承系统

    公开(公告)号：US07345392B2

    公开(公告)日：2008-03-18

    申请号：US11092299

    申请日：2005-03-29

    申请人： Martin Hafen ,  Joerg Hoffmann ,  Andreas Kull ,  Tobias Kirchmeier ,  Rudolf Neumann ,  Thilo Rehm ,  Olaf Winterhalter

    发明人： Martin Hafen ,  Joerg Hoffmann ,  Andreas Kull ,  Tobias Kirchmeier ,  Rudolf Neumann ,  Thilo Rehm ,  Olaf Winterhalter

    IPC分类号： H02K5/16 ,  H02K7/08 ,  F16C17/02

    CPC分类号： H02K5/1675 ,  F16C17/102 ,  F16C2370/12

    摘要： The invention relates to a spindle motor having a hydrodynamic bearing system, particularly to drive platters in a hard disk drive, the platters being disposed on a rotor, and the bearing system being formed by a bearing sleeve arranged on a baseplate and a shaft rotatably supported in an opening in the bearing sleeve and at least one thrust plate connected to the shaft. A liquid lubricant is filled into a bearing gap formed between the shaft, the thrust plate and the bearing sleeve. The invention is characterized in that the thrust plate rests directly against the rotor and is accommodated in an annular recess in the bearing sleeve facing the rotor.

    摘要翻译： 本发明涉及一种具有流体动力轴承系统的主轴电动机，特别是用于驱动硬盘驱动器中的盘片，盘片设置在转子上，并且该轴承系统由布置在基板上的轴承套筒和可旋转地支撑的轴 在轴承套筒中的一个开口中，以及至少一个连接到轴的止推板。 液体润滑剂被填充到形成在轴，推力板和轴承套之间的轴承间隙中。 本发明的特征在于推力板直接靠在转子上并且被容纳在面向转子的轴承套筒中的环形凹部中。

    Spindle motor of a small-scale design
    6.
    发明授权
    Spindle motor of a small-scale design 有权
    主轴电机的小型设计

    公开(公告)号：US07309937B2

    公开(公告)日：2007-12-18

    申请号：US11353485

    申请日：2006-02-14

    申请人： Joerg Hoffmann ,  Olaf Winterhalter

    发明人： Joerg Hoffmann ,  Olaf Winterhalter

    IPC分类号： H02K5/16

    CPC分类号： G11B19/2009 ,  F16C17/045 ,  F16C17/10 ,  F16C33/107 ,  F16C2370/12 ,  H02K5/1675

    摘要： The spindle motor described herein comprises a rotor having a rotor hub and a shaft connected to the rotor hub, a cylindrical bearing sleeve having a central bore to accommodate the shaft and a collar disposed at the receiving aperture, a cup-shaped bearing housing closed at one end to accommodate the bearing sleeve, a baseplate to hold the bearing receiving portion, a stopper ring disposed at the inside circumference of the rotor hub between the collar and the baseplate, and at least one radial bearing region formed between the outside diameter of the shaft and the inside diameter of the bore and defined by surface patterns. According to the invention, an annular axial bearing region is provided formed between a lower face of the collar and an upper face of the stopper ring. This design and construction makes it possible to realize spindle motors having small dimensions and, in particular, low overall heights.

    摘要翻译： 本文所述的主轴电动机包括具有转子毂和连接到转子毂的轴的转子，具有中心孔以容纳轴的圆柱形轴承套和设置在接收孔处的轴环，杯状轴承壳体在 一端容纳轴承套筒，用于保持轴承接收部分的基板，设置在转子轮毂的内圆周之间的轴环与底板之间的止动环，以及至少一个径向轴承区域， 轴和孔的内径并由表面图案限定。 根据本发明，环形轴向轴承区域设置在轴环的下表面和止动环的上表面之间。 这种设计和结构使得可以实现具有小尺寸，特别是低整体高度的主轴电机。

    Hydrodynamic bearing for a spindle motor
    7.
    发明授权
    Hydrodynamic bearing for a spindle motor 有权
    用于主轴电机的流体动力轴承

    公开(公告)号：US07097360B2

    公开(公告)日：2006-08-29

    申请号：US10725972

    申请日：2003-12-02

    申请人： Olaf Winterhalter

    发明人： Olaf Winterhalter

    IPC分类号： F16C17/10

    CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/10 ,  F16C2370/12 ,  G11B19/2018 ,  H02K7/085

    摘要： A hydrodynamic bearing for use in a spindle motor, having a shaft, a bearing sleeve encompassing the shaft with a small radial space, and a skewback at one end face of the bearing sleeve which is fixedly connected to the bearing sleeve. The shaft features a thrust plate or a conical or cone-like extension at its end face which faces the skewback. The diameter of the conical extension increases in the direction of the end face of the shaft. A bearing gap formed between the shaft and the bearing sleeve is filled with a bearing fluid. Dynamic pressure generating grooves are provided on one of the outer surface of the shaft and the inner surface of the bearing sleeve to generate an excess pressure in the bearing fluid.

    摘要翻译： 一种用于主轴电动机的流体动力轴承，其具有轴，轴承套筒，其包围具有小径向空间的轴，以及在轴承套筒的一个端面处的斜背，其固定地连接到轴承套筒。 轴在其端面处具有推力板或锥形或锥形延伸部，其面向斜背。 锥形延伸部的直径在轴的端面的方向上增加。 在轴和轴承套之间形成的轴承间隙填充有轴承流体。 在轴的外表面和轴承套的内表面中的一个上设置动态压力产生槽，以在轴承流体中产生过大的压力。

    Fluid dynamic bearing
    8.
    发明申请
    Fluid dynamic bearing 有权
    流体动力轴承

    公开(公告)号：US20090274402A1

    公开(公告)日：2009-11-05

    申请号：US12386718

    申请日：2009-04-22

    申请人： Olaf Winterhalter ,  Andreas Kull

    发明人： Olaf Winterhalter ,  Andreas Kull

    IPC分类号： F16C32/06

    CPC分类号： F16C33/107 ,  F16C33/745

    摘要： The invention relates to a fluid dynamic bearing having at least one first bearing part as well as a second bearing part that are rotatably supported with respect to one another about a rotational axis and separated from one another by a bearing gap filled with bearing fluid. Associated bearing surfaces of the bearing parts form a first and a second radial bearing that are marked by grooved bearing patterns disposed on at least one bearing surface. Between the radial bearings, there is a separator gap having an enlarged gap distance compared to the bearing gap. According to the invention, the ends of the grooved bearing patterns of the radial bearings adjoining the separator gap penetrate into the separator gap. This measure goes to prevent the creation of negative pressure at the ends of the grooved bearing patterns, as a result of which the formation of air bubbles is also reduced. The larger gap distance of the separator gap and the direct connection to the grooved bearing patterns result in an improved flow rate of the bearing fluid through the grooved bearing patterns.

    摘要翻译： 本发明涉及一种流体动力轴承，其具有至少一个第一轴承部分以及第二轴承部件，该第二轴承部件相对于彼此围绕旋转轴线可旋转地支撑并且通过填充有轴承流体的轴承间隙彼此分离。 轴承部件的相关轴承表面形成第一和第二径向轴承，该第一和第二径向轴承由布置在至少一个支承表面上的带槽轴承图案标记。 在径向轴承之间，存在与轴承间隙相比具有扩大的间隙距离的分隔件间隙。 根据本发明，邻接分离器间隙的径向轴承的带槽轴承图案的端部穿透分离器间隙。 该措施是为了防止在带槽轴承图案的端部产生负压，结果也减少了气泡的形成。 分离器间隙的较大的间隙距离和与凹槽轴承图案的直接连接导致轴承流体通过带槽轴承图案的改善的流速。

    Fluid dynamic bearing system
    9.
    发明申请
    Fluid dynamic bearing system 审中-公开
    流体动力轴承系统

    公开(公告)号：US20070183700A1

    公开(公告)日：2007-08-09

    申请号：US11701132

    申请日：2007-02-01

    申请人： Olaf Winterhalter

    发明人： Olaf Winterhalter

    IPC分类号： F16C32/06

    CPC分类号： F16C17/026 ,  F16C33/107 ,  F16C2370/12

    摘要： The invention relates to a fluid dynamic bearing system used particularly for a spindle motor having a shaft that is accommodated in a bearing bush and rotatably supported with respect to the bearing bush. According to the invention the bearing bush is made of plastics.

    摘要翻译： 本发明涉及一种特别用于主轴电机的流体动力轴承系统，该主轴电机具有容纳在轴承衬套中并相对于轴承衬套可旋转地支撑的轴。 根据本发明，轴承衬套由塑料制成。