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1. 发明授权

US06334616B1 Ferrofluid cap seal for spindle motor 失效
标题翻译：用于主轴电机的碳氟化物盖密封
公开(公告)号：US06334616B1
公开(公告)日：2002-01-01
申请号：US09416970
申请日：1999-10-12
申请人： M. Amine Hajji , Andrew K. Hanlon , Holavanahally Seshachar Nagaraj
发明人： M. Amine Hajji , Andrew K. Hanlon , Holavanahally Seshachar Nagaraj
IPC分类号： F16J1544
CPC分类号： F16J15/43
摘要： A hard disk drive spindle motor has a hub, a drive shaft, and a bearing therebetween. The spindle motor also has a ferrofluid seal to prevent any incidental oil emissions from the bearing from entering the drive. A ferrofluid cap is mounted on the axial end of the spindle motor for sealing the ferrofluid seal. The cap is a flat ring and has an elastomeric pad around its outer edge. The pad seats in a recess in the bore of the hub. The cap does not touch the shaft as it rotates with the hub about the shaft. Any excess ferrofluid from the ferrofluid seal is forced radially outward away from the shaft by centrifugal force. The cap contains the excess ferrofluid within the spindle motor and prevents it from entering other areas of the disk drive.
摘要翻译：硬盘驱动主轴电机具有毂，驱动轴和它们之间的轴承。主轴电机还具有铁磁流体密封件，以防止任何偶然的轴承中的排放物进入驱动器。铁芯流体盖安装在主轴电机的轴向端，用于密封铁磁流体密封。盖子是一个平的环，并且在其外缘周围具有弹性垫。垫座位于轮毂孔中的凹槽中。当轴毂绕轴旋转时，盖子不会碰到轴。来自铁磁流体密封件的任何多余的铁磁流体通过离心力径向向外离开轴。盖子包含主轴电机内的过量铁磁流体，并防止其进入磁盘驱动器的其他区域。

2. 发明授权

US07724468B2 Apparatus and method for correcting static and dynamic imbalance with a single mass in a hard disk drive 有权
标题翻译：用于在硬盘驱动器中用单个质量块校正静态和动态不平衡的装置和方法
公开(公告)号：US07724468B2
公开(公告)日：2010-05-25
申请号：US11074441
申请日：2005-03-08
申请人： Ta-Chang Fu , Andrew K. Hanlon , Robert Lenicheck , Stanley Y. Wong
发明人： Ta-Chang Fu , Andrew K. Hanlon , Robert Lenicheck , Stanley Y. Wong
IPC分类号： G11B17/08
CPC分类号： G11B25/043 , G11B33/08
摘要： An apparatus and method for correcting static and dynamic imbalance with a single mass in a hard disk drive is disclosed. The method provides for determining a static imbalance of a hard disk assembly and for determining a dynamic imbalance of the hard disk assembly. A greater imbalance from the static imbalance and the dynamic imbalance is determined. A single mass is applied to the hard disk assembly to correct the greater imbalance.
摘要翻译：公开了一种用于在硬盘驱动器中用单个质量块校正静态和动态不平衡的装置和方法。该方法提供用于确定硬盘组件的静态不平衡并且用于确定硬盘组件的动态不平衡。确定了静态不平衡和动态失衡的更大的不平衡。单个质量被施加到硬盘组件以校正更大的不平衡。

3. 发明授权

US07212376B2 Disk drive system with hydrodynamic bearing lubricant having charge-control additive comprising dioctyldiphenylamine and/or oligomer thereof 有权
标题翻译：具有流体动力轴承润滑剂的磁盘驱动系统具有电荷控制添加剂，其包含二辛基二苯胺和/或其低聚物
公开(公告)号：US07212376B2
公开(公告)日：2007-05-01
申请号：US10672431
申请日：2003-09-26
申请人： John M. Burns , Ta-Chang Fu , Andrew K. Hanlon , Charles Hignite , Thomas E. Karis , Richard M. Kroeker , Stanley Y. Wong
发明人： John M. Burns , Ta-Chang Fu , Andrew K. Hanlon , Charles Hignite , Thomas E. Karis , Richard M. Kroeker , Stanley Y. Wong
IPC分类号： G11B19/20
CPC分类号： G11B17/0287 , C10M169/04 , C10M2207/026 , C10M2207/2835 , C10M2215/064 , C10M2215/065 , C10N2240/204 , F16C17/107 , F16C33/109 , F16C2370/12 , G11B17/028
摘要： An improved disk drive system that employs a lubricant with improved charge control is provided. The disk drive system is comprised of a rotatably mounted magnetic disk. A rotor is coupled to the disk and rotatably retained by a stator. A bearing is formed that serves as an interface between the stator and the rotor. A motor coupled to the rotor rotates the magnetic disk via the rotor. Located in the bearing is a lubricant having a low relative electrical permittivity.
摘要翻译：提供了一种使用改进的充电控制的润滑剂的改进的磁盘驱动器系统。磁盘驱动系统由可旋转地安装的磁盘组成。转子联接到盘上并由定子可旋转地保持。形成用作定子和转子之间的界面的轴承。耦合到转子的电动机通过转子旋转磁盘。位于轴承中的是具有低相对电容率的润滑剂。

4. 发明授权

US06356409B1 Balancing apparatus and method for high speed hard disk drive spindles 失效
标题翻译：平衡高速硬盘驱动器主轴的装置和方法
公开(公告)号：US06356409B1
公开(公告)日：2002-03-12
申请号：US09461894
申请日：1999-12-15
申请人： Kirk B. Price , Andrew K. Hanlon
发明人： Kirk B. Price , Andrew K. Hanlon
IPC分类号： G11B2504
CPC分类号： G11B19/2009 , F16F15/32 , G11B17/028 , G11B19/2027 , G11B25/043 , G11B33/08
摘要： A balancing mechanism for the spindle of a computer hard disk drive uses two, substantially flat wire clips at each end of the disk pack. The clips are designed so that one clip in each pair nests concentrically inside the other clip in the pair. Each clip is provided with a substantially identical imbalance in the installed position. If the imbalance vectors of each clip at one end of the disk pack are oriented 180 degrees apart, the resulting imbalance at that end of the pack is zero. Conversely, if the imbalance vectors are oriented at the same angle, the imbalance is maximized. Thus, the resolution of the imbalance provided by the clips is theoretically infinite between these limits, up to the precision of the clips. The orientation of the imbalance vector is controlled by the angle of the pair of clips relative to an index mark on the disk pack. The magnitude of the desired counterbalance is controlled by rotating the clips in each pair relative to each other. The cross-sectional shape of each pair of clips can be varied, and include the following examples: rectangular cross-sections having a generally flat profile, cross-sections with nesting grooves and ridges, and wire that is concave on one side and convex on the other side.
摘要翻译：用于计算机硬盘驱动器的主轴的平衡机构在磁盘组的每一端使用两个基本扁平的线夹。夹子被设计成使得每一对中的一个夹子同心地嵌套在该对中的另一个夹子内。每个夹具在安装位置上具有基本相同的不平衡。如果磁盘盒的一端的每个夹子的不平衡向量相互取向180度，则在该组件的该端部处产生的不平衡为零。相反，如果不平衡矢量定向在相同的角度，那么失衡最大化。因此，剪辑提供的不平衡的分辨率理论上在这些限制之间是无限的，直到剪辑的精度。不平衡矢量的方向由一对夹子相对于盘片上的索引标记的角度控制。通过相对于彼此旋转每对中的夹子来控制所需平衡度的大小。每对夹子的横截面形状可以变化，并且包括以下示例：具有大致平坦轮廓的矩形横截面，具有嵌套槽和脊的横截面，以及在一侧上凹入并且在一侧上凸起的线另一边。

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