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    • 4. 发明授权
    • Spindle motor winding for miniature hard disk drive
    • 主轴电机绕组用于微型硬盘驱动器
    • US07518823B2
    • 2009-04-14
    • US11149011
    • 2005-06-09
    • David W. AlbrechtTaeyong Yoon
    • David W. AlbrechtTaeyong Yoon
    • G11B17/02H02K7/08
    • G11B33/12G11B17/0287
    • A spindle motor for implementation in a low profile hard disk drive is described; that spindle motor having a novel configuration for the torque generating portion. The spindle motor includes a hub coupled with a disk platter; that has a rotational axis about a suitable bearing system. A stator portion of material for conducting magnetic flux from the rotor poles, and having twelve stems and a plurality of windings, is configured to be disposed beneath the disk platter and coupled to the drive base. A rotor portion coupled with the hub having back iron ring with a permanent sixteen pole magnet radially polarized is closely radially disposed to the stator. The number of poles of the rotor portion has a defined proportion relative to the number of stems of the stator portion. The windings provide conductivity for creating an electromagnetic force applicable at the torque radius for rotation of the hub.
    • 描述了一种用于在低剖面硬盘驱动器中实现的主轴电机; 该主轴电动机具有用于转矩产生部分的新颖结构。 主轴电机包括与盘片连接的轮毂; 其具有围绕合适的轴承系统的旋转轴线。 用于传导来自转子极的磁通并具有十二个杆和多个绕组的材料的定子部分被配置为设置在盘片下面并且联接到驱动基座。 与具有后铁心的轮毂耦合的转子部分与径向极化的永久十六极磁体紧密地径向设置在定子上。 转子部分的极数相对于定子部分的杆数具有限定的比例。 绕组提供导电性以产生适用于轮毂旋转的扭矩半径处的电磁力。
    • 7. 发明授权
    • Completely circumferential motor bracket shroud for motor hub flange outside diameter for hard disk drive
    • 电机轮毂法兰外径完全圆周电机支架护罩用于硬盘驱动器
    • US07652843B2
    • 2010-01-26
    • US10651191
    • 2003-08-28
    • David W. AlbrechtTa-Chang Fu
    • David W. AlbrechtTa-Chang Fu
    • G11B33/14
    • G11B25/043G11B33/148
    • A completely circumferential shroud is provided around the motor hub flange of a hard disk drive spindle motor. The shroud is continuous, smooth, and uniform, and formed at the same axial height as the flange to reduce air flow disturbances that are generated by the rotating motor hub flange. Unlike prior art designs that provide openings to accommodate the actuator, the present design has no openings or irregular shapes that can cause air flow disturbance. Air flow disturbance, especially when near the actuator arms or head suspensions, can impact track misregistration. In addition, the probability of circulating contamination particles inside the motor out into the disk drive enclosure is also reduced due to less irregular airflow patterns.
    • 在硬盘驱动主轴电机的电动机轮毂凸缘周围设置完全圆周的护罩。 护罩是连续的,平滑的和均匀的,并且形成在与法兰相同的轴向高度上,以减少由旋转马达轮毂法兰产生的气流扰动。 不同于提供用于容纳致动器的开口的现有技术设计,本设计没有可能导致空气流扰动的开口或不规则形状。 空气流动扰动,特别是在执行机构臂或悬架悬臂附近时,可能会影响轨迹重合。 此外,由于较不规则的气流模式,将电机内的污染颗粒循环进入磁盘驱动器外壳的概率也降低。