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    • 4. 发明授权
    • Through hub oil fill and vent for a fluid dynamic bearing motor
    • 通过轮毂油填充和排气用于流体动力轴承电机
    • US07056024B2
    • 2006-06-06
    • US10850776
    • 2004-05-20
    • Jerry WeingordJames Sidney Lee
    • Jerry WeingordJames Sidney Lee
    • F16C32/06
    • F16C33/107F16C17/026F16C17/10F16C33/74F16C2370/12G11B19/2009G11B19/2027
    • A through hub fill hole and air vent having an enlarged fluid diffusion path is provided for spindle motors. Oil leakage and evaporation from a motor is reduced. In an aspect, oil is retained under conditions of at least a 1000 G shock event. In an aspect, the hub fill hole has a varying diameter and geometry, and is angled, further reducing oil leakage. In an aspect, an additional cavity is employed within the hub, for maintaining rotor rotational balance. The process of filling oil into a spindle motor is made easier from a motor set up and tooling perspective. Removal of the hub and other motor components is not necessary for filling a motor. Large diameter oil fill dispenser heads, subambient and ambient fill processes, and micro dispenser fill processes may be utilized. A measured and controlled amount of oil can be dispensed, reducing variability in the motor filling process.
    • 为主轴电动机提供了具有扩大的流体扩散路径的通过轮毂填充孔和排气孔。 电机漏油和蒸发减少。 在一方面,油保持在至少1000 G的冲击事件的条件下。 在一方面,轮毂填充孔具有变化的直径和几何形状,并且成角度,进一步减少漏油。 在一个方面,在轮毂内采用额外的腔,以保持转子的旋转平衡。 从电机设置和加工角度来看,将油充入主轴电机的过程变得更加容易。 不需要拆卸轮毂和其他电机部件来填充电机。 可以使用大直径的填充油分配器头,环境和环境填充过程以及微型分配器填充过程。 可以分配测量和控制的油量,减少电机灌装过程中的变化。