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    • 7. 发明申请
    • HYDRODYNAMIC BEARING ASSEMBLY AND MOTOR INCLUDING THE SAME
    • 水动力轴承组件和包括其的电机
    • US20130039609A1
    • 2013-02-14
    • US13569544
    • 2012-08-08
    • Young Tae KIMJu Ho Kim
    • Young Tae KIMJu Ho Kim
    • F16C32/06
    • There are provided a hydrodynamic bearing assembly capable of increasing a storage amount of oil and preventing evaporation or leakage of the oil by increasing a length of a sealing part, and a motor including the same. The hydrodynamic bearing assembly includes: a sleeve supporting a shaft such that an upper end of the shaft protrudes upwardly in an axial direction; a sleeve housing provided to enclose an outer peripheral surface of the sleeve, and forming an oil interface between an inner peripheral surface thereof in an outer diameter direction and a main wall part protruding downwardly in the axial direction from a rotor case inserted into the upper end of the shaft; and a cover member provided in lower portions of the shaft and the sleeve and coupled to the sleeve housing while having a clearance therebetween.
    • 提供了一种流体动力轴承组件,其能够增加油的储存量并通过增加密封部分的长度来防止油的蒸发或泄漏,以及包括其的马达。 流体动力轴承组件包括:支撑轴的套筒,使得轴的上端沿轴向向上突出; 套筒壳体,其设置成包围套筒的外周面,并且在其外径方向的内周面与沿轴向向下突出的主壁部之间形成油接口,该主壁部从插入上端的转子壳体 的轴; 以及设置在所述轴和所述套筒的下部并且在其间具有间隙的情况下联接到所述套筒壳体的盖构件。
    • 9. 发明申请
    • MOLD FOR MANUFACTURING SLEEVE AND SLEEVE MANUFACTURED BY USING THE SAME
    • 用于制造套筒的模具和使用其制造的套筒
    • US20130078400A1
    • 2013-03-28
    • US13589328
    • 2012-08-20
    • Young Tae KIM
    • Young Tae KIM
    • B22F3/12B32B1/08B22F5/12
    • B22F3/03B22F5/106Y10T428/13
    • There are provided a mold for manufacturing a sleeve capable of improving product quality by preventing damage in an edge of a mold used for manufacturing a sintered type sleeve, and a sleeve manufactured by using the same. The mold includes: a housing mold having a hollow part formed therein, a closed lower end, and a pillar standing at a center thereof in order to form a shaft hole of a sleeve; and a pressing mold pressing sintering powder after the housing mold is filled with the sintering powder, thereby allowing the sintering powder to be sintered in a sleeve shape, wherein the pressing mold has an outer inclined surface formed along an edge portion of an outer diameter of a front end thereof and a step portion formed at an outermost portion of the outer inclined surface.
    • 提供了一种用于制造套筒的模具,其能够通过防止用于制造烧结型套筒的模具的边缘中的损坏来提高产品质量,以及使用该套筒制造的套筒。 该模具包括:形成有中空部的壳体模具,封闭的下端和竖立在其中心的支柱,以便形成套筒的轴孔; 以及在所述壳体模具填充有所述烧结粉末之后的按压模压按压烧结粉末,从而使所述烧结粉末以套筒形状烧结,其中所述按压模具具有沿着外径的外径的边缘部分形成的外倾斜面 其前端和形成在外倾斜表面的最外部的台阶部。
    • 10. 发明申请
    • SPINDLE MOTOR
    • 主轴电机
    • US20120306303A1
    • 2012-12-06
    • US13427799
    • 2012-03-22
    • Young Tae KIMSang Jin PARKWon Ki PARKIk Sun LEE
    • Young Tae KIMSang Jin PARKWon Ki PARKIk Sun LEE
    • H02K7/08
    • F16C17/107F16C17/026F16C33/107F16C2370/12
    • Disclosed herein is a spindle motor including a rotating part including a rotating shaft, a hub, and a magnet and a fixing part including a sleeve supporting the rotating shaft and an armature opposite to the magnet, wherein a working fluid is injected between the rotating shaft and the sleeve so as to form a fluid dynamic bearing part, and the sleeve is as a sintered sleeve by sintering and a top and a bottom of an inner peripheral surface of the sleeve is protruded toward the rotating shaft, whereby the spindle motor improving dynamic pumping capability and extending a span of a radial bearing part to a top end and a bottom end of the sleeve as compared with the spindle motor according to the prior art can be provided.
    • 这里公开了一种主轴电动机,其包括:旋转部,包括旋转轴,轮毂和磁体;以及固定部,包括支撑旋转轴的套筒和与磁铁相反的电枢,其中工作流体被注入到旋转轴 和套筒形成流体动力轴承部,套筒通过烧结作为烧结套筒,套筒的内周面的顶部和底部朝向旋转轴突出,由此主轴电机改善动态 可以提供与根据现有技术的主轴电机相比,泵送能力并将径向轴承部分的跨度延伸到套筒的顶端和底端。