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    • 5. 发明申请
    • Magnetic axial bearing and a spindle motor having this kind of magnetic axial bearing
    • 磁轴向轴承和具有这种磁轴向轴承的主轴电机
    • US20090146515A1
    • 2009-06-11
    • US12315299
    • 2008-12-02
    • Vladimir V. PopovMartin BauerGuido SchmidStefan Schwamberger
    • Vladimir V. PopovMartin BauerGuido SchmidStefan Schwamberger
    • F16C39/06
    • F16C39/063F16C17/02F16C17/026F16C32/0402F16C32/0419F16C33/107F16C33/74F16C2370/12H02K5/1675H02K7/085H02K7/09
    • The invention relates to a magnetic axial bearing for taking up axial forces that act on a rotor component that is rotatably supported about a rotational axis with respect to a stator component. The bearing comprises a first bearing part consisting of at least one permanent magnet and at least two flux guide elements associated with the permanent magnet that are disposed on opposing end faces of the permanent magnet and aligned substantially radial and perpendicular to the rotational axis, and a second bearing part consisting of at least two flux guide elements that are disposed at a mutual spacing to one another and aligned substantially radial and perpendicular to the rotational axis, each flux guide element of the second bearing part being associated with a flux guide element of the first bearing part and lying directly opposite the latter in a radial direction and separated from it by an air gap. The invention further describes a spindle motor having a magnetic axial bearing of this kind, used, for example, for driving a hard disk drive.
    • 本发明涉及一种用于承受作用在转子部件上的轴向力的磁性轴向轴承,所述转子部件相对于定子部件围绕旋转轴线可旋转地支撑。 轴承包括由至少一个永磁体和与永磁体相关联的至少两个磁通引导元件组成的第一轴承部分,该磁通引导元件设置在永磁体的相对端面上,并基本上径向并垂直于旋转轴线排列, 第二轴承部分由至少两个磁通引导元件组成,所述至少两个磁通引导元件彼此相互间隔设置并基本上径向并垂直于旋转轴线排列,第二轴承部分的每个磁通引导元件与 第一轴承部分并且在径向方向上与后者直接相对并且通过气隙与其分离。 本发明还描述了一种具有这种磁轴向轴承的主轴电动机,例如用于驱动硬盘驱动器。
    • 6. 发明授权
    • Magnetic axial bearing and a spindle motor having this kind of magnetic axial bearing
    • 磁轴向轴承和具有这种磁轴向轴承的主轴电机
    • US08212444B2
    • 2012-07-03
    • US12315299
    • 2008-12-02
    • Vladimir V. PopovMartin BauerGuido SchmidStefan Schwamberger
    • Vladimir V. PopovMartin BauerGuido SchmidStefan Schwamberger
    • F16C39/06
    • F16C39/063F16C17/02F16C17/026F16C32/0402F16C32/0419F16C33/107F16C33/74F16C2370/12H02K5/1675H02K7/085H02K7/09
    • The invention relates to a magnetic axial bearing for taking up axial forces that act on a rotor component that is rotatably supported about a rotational axis with respect to a stator component. The bearing comprises a first bearing part consisting of at least one permanent magnet and at least two flux guide elements associated with the permanent magnet that are disposed on opposing end faces of the permanent magnet and aligned substantially radial and perpendicular to the rotational axis, and a second bearing part consisting of at least two flux guide elements that are disposed at a mutual spacing to one another and aligned substantially radial and perpendicular to the rotational axis, each flux guide element of the second bearing part being associated with a flux guide element of the first bearing part and lying directly opposite the latter in a radial direction and separated from it by an air gap. The invention further describes a spindle motor having a magnetic axial bearing of this kind, used, for example, for driving a hard disk drive.
    • 本发明涉及一种用于承受作用在转子部件上的轴向力的磁性轴向轴承,所述转子部件相对于定子部件围绕旋转轴线可旋转地支撑。 轴承包括由至少一个永磁体和与永磁体相关联的至少两个磁通引导元件组成的第一轴承部分,该磁通引导元件设置在永磁体的相对端面上,并基本上径向并垂直于旋转轴线排列, 第二轴承部分由至少两个磁通引导元件组成,所述至少两个磁通引导元件彼此相互间隔设置并基本上径向并垂直于旋转轴线排列,第二轴承部分的每个磁通引导元件与 第一轴承部分并且在径向方向上与后者直接相对并且通过气隙与其分离。 本发明还描述了一种具有这种磁轴向轴承的主轴电动机,例如用于驱动硬盘驱动器。
    • 10. 发明授权
    • Spindle motor having a fluid dynamic bearing system
    • 主轴电动机具有流体动力轴承系统
    • US07570456B2
    • 2009-08-04
    • US11325126
    • 2006-01-04
    • Martin EngesserStefan Schwamberger
    • Martin EngesserStefan Schwamberger
    • G11B17/028
    • G11B17/0287
    • The invention relates to a spindle motor having a fluid dynamic bearing system and comprises a rotor having a cylindrical shaft, a first bearing disk disposed at one end of the shaft and a second bearing disk that is disposed on the shaft at a spacing to the first bearing disk in such a way that an annular disk-shaped space is formed between the two bearing disks. A stator is provided that has an annular disk-shaped component which is disposed in the annular disk-shaped space formed by the rotor, the respective opposing bearing surfaces of the stator and of the rotor being separated from one another by a bearing gap filled with a fluid medium. The bearing system comprises at least one radial bearing formed between the outside circumference of the shaft and the inside circumference of the annular disk-shaped component and two axial bearings formed by the two end faces of the annular disk-shaped component and the respective opposing end faces of the bearing disks, an electromagnetic drive unit being provided to drive the rotor.
    • 本发明涉及一种具有流体动力轴承系统的主轴电动机,其包括具有圆柱形轴的转子,设置在轴的一端的第一轴承盘和与第一 轴承盘以这样的方式在两个轴承盘之间形成环形盘形空间。 提供一种定子,其具有设置在由转子形成的环形盘形空间中的环形盘形部件,定子和转子的相对的相对的支承表面通过填充有 流体介质。 所述轴承系统包括形成在所述轴的外圆周和所述环形盘形部件的内圆周之间的至少一个径向轴承和由所述环形盘形部件的两个端面形成的两个轴向轴承以及相应的相对端 轴承盘的表面,设置有用于驱动转子的电磁驱动单元。