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    • 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。
    • 8. 发明申请
    • ELECTRIC MACHINE HAVING CLAW POLE STATOR
    • 具有CLOR POLE定子的电机
    • US20080231140A1
    • 2008-09-25
    • US12042946
    • 2008-03-05
    • Vladimir V. Popov
    • Vladimir V. Popov
    • H02K1/12
    • H02K1/145
    • The present invention relates to an electric machine having a claw pole stator, comprising: a first and a second claw pole plate each of which has a yoke and pole claws, the pole claws connected to the yoke via a base and the claw pole plates being disposed coaxially with respect to one another such that a pole claw rim is formed from the pole claws, the pole claws rim defining a rotor-side boundary of a space for receiving a cylindrical coil, wherein a circular line is defined, whose center coincides with the center of the rotation axis, the circular line intersecting the center point of the baseline of at least one pole claw and having a tangent at this center point, wherein an angle a is formed between this tangent and a straight line connecting the two outer points of the baseline, where α≠0. In an alternative embodiment, the pole claws are twisted with respect to their baselines.
    • 本发明涉及一种具有爪极定子的电机,包括:第一和第二爪极板,每个具有轭和杆爪,所述杆爪经由基座连接到所述轭,所述爪极板为 相对于彼此同轴设置,使得从所述极爪形成极爪边缘,所述极爪边界限定用于接收圆柱形线圈的空间的转子侧边界,其中定义了圆形线,其中心与 旋转轴的中心,圆线与至少一个极爪的基线的中心点相交,并且在该中心点具有切线,其中在该切线与连接两个外部点的直线之间形成角度a 的基线,其中α<> 0。 在替代实施例中,极爪相对于它们的基线扭转。