公开(公告)号：US07436625B1

公开(公告)日：2008-10-14

申请号：US11032946

申请日：2005-01-11

申请人： Shan-Shuong Chiou ,  Shuo-Hao Chen ,  Raffi Codilian

发明人： Shan-Shuong Chiou ,  Shuo-Hao Chen ,  Raffi Codilian

IPC分类号： G11B17/02

CPC分类号： G11B19/2009

摘要： A spindle motor includes a shaft defining a longitudinal axis, a hub, a bearing assembly disposed between the hub and the shaft for allowing the hub to rotate, and a stator. The stator includes an inner diameter, an outer diameter, a stator tooth having a distal end, and a coil wound around the stator tooth. The stator tooth has a lower surface extending between the coil and the distal end of the stator tooth. The spindle motor includes a stator support structure supporting one of the inner and outer diameters, the stator support structure having an upper surface facing the lower surface, wherein at least one of the upper surface of the stator support structure and the lower surface of the stator tooth defines a cavity.

摘要翻译： 主轴电动机包括限定纵向轴线的轴，轮毂，设置在轮毂和轴之间以允许轮毂旋转的轴承组件和定子。 定子包括内径，外径，具有远端的定子齿和缠绕在定子齿上的线圈。 定子齿具有在线圈和定子齿的远端之间延伸的下表面。 主轴电动机包括支撑内径和外径之一的定子支撑结构，定子支撑结构具有面向下表面的上表面，其中定子支撑结构的上表面和定子的下表面中的至少一个 齿定义一个空腔。

公开(公告)号：US06362932B1

公开(公告)日：2002-03-26

申请号：US09347989

申请日：1999-07-06

申请人： Jim Bodmer ,  Shuo-Hao Chen ,  Shane Walker

发明人： Jim Bodmer ,  Shuo-Hao Chen ,  Shane Walker

IPC分类号： G11B1702

CPC分类号： G11B17/0287

摘要： A disk drive spindle air bearing includes an air bearing gap between a pair of air bearing surfaces that varies as a function of radial distance from an axis of rotation. This non-uniform air bearing gap effectively minimizes contact between the air bearing surfaces of the bearing when the disk drive hub is at rest or spinning below a threshold speed. This reduced contact significantly reduces the stiction forces that must be overcome during disk drive spin up operations and also reduces the generation of wear particles within the bearing. Air bearing surface shaping techniques are provided for achieving the non-uniform gap dimension, including techniques involving crowned, stepped, and sloped surfaces. In an alternative approach, sacrificial plating is employed to achieve a non-uniform gap dimension within the air bearing.

摘要翻译： 盘驱动主轴空气轴承包括一对空气轴承表面之间的空气轴承间隙，其随着与旋转轴线的径向距离而变化。 当磁盘驱动器毂处于静止或旋转低于阈值速度时，这种不均匀的空气轴承间隙有效地最小化轴承的空气轴承表面之间的接触。 这种减少的接触显着降低了磁盘驱动器旋转操作期间必须克服的静摩擦力，并且还减少了轴承内的磨损颗粒的产生。 提供空气轴承表面成形技术以实现不均匀的间隙尺寸，包括涉及凸面，阶梯和倾斜表面的技术。 在替代方法中，采用牺牲电镀来实现空气轴承内的不均匀间隙尺寸。

公开(公告)号：US5558445A

公开(公告)日：1996-09-24

申请号：US363566

申请日：1994-12-22

申请人： Shuo-Hao Chen ,  Yan Zang ,  Michael R. Hatch

发明人： Shuo-Hao Chen ,  Yan Zang ,  Michael R. Hatch

IPC分类号： F16C17/10 ,  F16C33/10 ,  F16C33/74 ,  G11B5/52 ,  F16C32/06

CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C33/10 ,  F16C33/103 ,  F16C33/745

摘要： A self-contained hydrodynamic bearing unit includes a shaft and a shaft housing defining an opening for receiving the shaft for relative rotation. The shaft and bearing define at least one radial hydrodynamic bearing and an annular thrust bearing, formed as a disk portion extending radially outward of a main cylindrical surface of the shaft which cooperates with an adjacent annular face of the shaft housing. A gap between an outer cylindrical wall of the thrust bearing disk portion and an adjacently facing cylindrical surface of the shaft housing provides a primary annular capillary seal segment. An annular bushing ring extends from the housing radially inwardly to enclose the thrust bearing disk, and cooperates with an adjacent outer face of the thrust bearing disk to provide a secondary containment capillary seal segment. Normally, lubricating liquid is in the bearing unit at the radial hydrodynamic bearing, at the hydrodynamic thrust bearing and in the primary annular capillary seal segment. However, if liquid overflows from, or extends beyond the primary seal segment as by thermal expansion, it is contained in the secondary seal segment and urged to return by centrifugal force to the primary seal segment. A tertiary containment seal may also be provided to prevent escape of liquid to the external ambient.

摘要翻译： 独立的流体动力轴承单元包括轴和轴壳体，该轴壳体限定用于接收用于相对旋转的轴的开口。 轴和轴承限定至少一个径向流体动力轴承和环形推力轴承，其形成为与轴壳体的相邻环形面协作的轴的主圆柱形表面的径向外侧延伸的盘形部分。 推力轴承盘部分的外圆柱形壁与轴壳体相邻的圆柱形表面之间的间隙提供了一个初级的环形毛细管密封段。 环形衬套环从壳体径向向内延伸以包围止推轴承盘，并且与推力轴承盘的相邻外表面配合以提供第二容纳毛细管密封段。 通常，润滑液体在径向流体动力轴承，流体动力推力轴承和初级环形毛细管密封段中的轴承单元中。 然而，如果液体如通过热膨胀从第一密封段溢出或延伸超过主密封段，则其被包含在次级密封段中并且被迫通过离心力返回到主密封段。 还可以提供三级密封件以防止液体逸出到外部环境中。

公开(公告)号：US06313967B1

公开(公告)日：2001-11-06

申请号：US09366185

申请日：1999-08-03

申请人： James Bodmer ,  Shuo-Hao Chen

发明人： James Bodmer ,  Shuo-Hao Chen

IPC分类号： G11B1702

CPC分类号： G11B19/2009 ,  F16C17/107 ,  F16C33/1015 ,  F16C2370/12 ,  G11B25/043

摘要： A disk drive spindle air bearing is disclosed having increased bearing stiffness, while being capable of manufacture using conventional tolerances. The invention therefore allows the construction of a disk drive spindle bearing without the need for oil or grease that may potentially contaminate the storage disks. The disclosed disk drive spindle air bearing also provides an air bearing having low acoustical noise and power consumption characteristics.

摘要翻译： 公开了具有增加的轴承刚度的盘驱动主轴空气轴承，同时能够使用常规公差制造。 因此，本发明允许构造磁盘驱动器主轴轴承，而不需要可能污染存储盘的油或油脂。 所公开的磁盘驱动主轴空气轴承还提供具有低声学噪声和功耗特性的空气轴承。

公开(公告)号：US5716141A

公开(公告)日：1998-02-10

申请号：US725224

申请日：1996-09-30

申请人： Shuo-Hao Chen

发明人： Shuo-Hao Chen

IPC分类号： F16C17/00 ,  F16C17/02 ,  F16C33/10 ,  F16C33/74 ,  G11B19/20 ,  F16C32/06

CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C33/74 ,  G11B19/2009 ,  F16C17/107 ,  F16C2370/12 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49703 ,  Y10T29/49995

摘要： A method for forming a precision groove in a cylindrical surface of an article such as a sleeve-shaft hydrodynamic journal bearing system includes the steps of: aligning a groove-forming machine to an axial datum plane of the article defined in a spaced-apart relation with the cylindrical surface by a predetermined nominal first dimension, translating the groove-forming machine in an axial direction toward and upon a first edge of the cylindrical surface by an amount equal to the predetermined nominal first dimension and thereupon forming a first groove axial step segment in the cylindrical surface until a second predetermined axial datum plane is reached, simultaneously axially translating and rotating the groove-forming machine from the second axial datum plane until a third predetermined axial datum plane is reached and thereupon forming the precision groove pattern in the cylindrical surface between the second axial datum plane and the third axial datum plane, and axially translating the groove-forming machine from the third predetermined axial datum plane until a second edge of the cylindrical surface is reached and thereupon forming a second groove axial step segment in the cylindrical surface from the third axial datum plane to the second edge. A hydrodynamic being system formed in accordance with the disclosed method is also claimed.

摘要翻译： 在诸如套筒轴流体动力轴颈轴承系统的物品的圆柱形表面中形成精密槽的方法包括以下步骤：将凹槽形成机器与间隔开的关系定义的制品的轴向基准平面对准 其中圆柱形表面具有预定的标称第一尺寸，使得槽形成机器在轴向方向上朝向圆柱形表面的第一边缘并且在圆柱形表面的第一边缘上平移等于预定标称第一尺寸的量，并且随后形成第一凹槽轴向台阶段 在圆柱形表面中直到达到第二预定轴向基准平面，同时沿着第二轴向基准平面轴向平移和旋转槽形成机，直到达到第三预定轴向基准平面，并且随后在圆柱形表面中形成精密凹槽图案 在第二轴向基准平面和第三轴向基准平面之间，并且轴向平移 从第三预定轴向基准面平移槽形成机，直到达到圆柱形表面的第二边缘，并且随后在圆柱形表面中从第三轴向基准平面到第二边缘形成第二槽轴向台阶段。 还要求保护根据所公开的方法形成的流体动力系统。

公开(公告)号：US5579579A

公开(公告)日：1996-12-03

申请号：US353171

申请日：1994-12-08

申请人： Shuo-Hao Chen

发明人： Shuo-Hao Chen

IPC分类号： F16C17/00 ,  F16C17/02 ,  F16C33/10 ,  F16C33/74 ,  G11B19/20 ,  B23P15/00

CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C33/74 ,  G11B19/2009 ,  F16C17/107 ,  F16C2370/12 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49703 ,  Y10T29/49995

摘要： A method for forming a precision groove in a cylindrical surface of an article such as a sleeve-shaft hydrodynamic journal bearing system includes the steps of: aligning a groove-forming machine to an axial datum plane of the article defined in a spaced-apart relation with the cylindrical surface by a predetermined nominal first dimension, translating the groove-forming machine in an axial direction toward and upon a first edge of the cylindrical surface by an amount equal to the predetermined nominal first dimension and thereupon forming a first groove axial step segment in the cylindrical surface until a second predetermined axial datum plane is reached, simultaneously axially translating and rotating the groove-forming machine from the second axial datum plane until a third predetermined axial datum plane is reached and thereupon forming the precision groove pattern in the cylindrical surface between the second axial datum plane and the third axial datum plane, and axially translating the groove-forming machine from the third predetermined axial datum plane until a second edge of the cylindrical surface is reached and thereupon forming a second groove axial step segment in the cylindrical surface from the third axial datum plane to the second edge.

摘要翻译： 在诸如套筒轴流体动力轴颈轴承系统的物品的圆柱形表面中形成精密槽的方法包括以下步骤：将凹槽形成机器与间隔开的关系定义的制品的轴向基准平面对准 其中圆柱形表面具有预定的标称第一尺寸，使得槽形成机器在轴向方向上朝向圆柱形表面的第一边缘并且在圆柱形表面的第一边缘上平移等于预定标称第一尺寸的量，并且随后形成第一凹槽轴向台阶段 在圆柱形表面中直到达到第二预定轴向基准平面，同时沿着第二轴向基准平面轴向平移和旋转槽形成机，直到达到第三预定轴向基准平面，并且随后在圆柱形表面中形成精密凹槽图案 在第二轴向基准平面和第三轴向基准平面之间，并且轴向平移 从第三预定轴向基准面平移槽形成机，直到达到圆柱形表面的第二边缘，并且随后在圆柱形表面中从第三轴向基准平面到第二边缘形成第二槽轴向台阶段。

公开(公告)号：US20100149677A1

公开(公告)日：2010-06-17

申请号：US12335822

申请日：2008-12-16

申请人： Carl Xiaodong Che ,  Keung Youn Cho ,  Soo-Youl Hong ,  Shuo-Hao Chen

发明人： Carl Xiaodong Che ,  Keung Youn Cho ,  Soo-Youl Hong ,  Shuo-Hao Chen

IPC分类号： G11B5/03

CPC分类号： G11B5/0245

摘要： A method for erasing a disk of a hard disk drive. The method includes moving the hard disk drive adjacent to an erasure head that emanates a magnetic field. The magnetic field and moving hard disk drive cause a disk of the hard disk drive to spin under a Lorentz force created by the magnetic field and moving disk. The magnetic field is applied by the erasure head for a duration that causes erasure of the entire disk. The spindle motor is not activated during the entire process. Not activating the spindle motor eliminates any Faraday coupling from the erasure head into the motor.

摘要翻译： 一种擦除硬盘驱动器的磁盘的方法。 该方法包括移动与发出磁场的擦除头相邻的硬盘驱动器。 磁场和移动的硬盘驱动器使得硬盘驱动器的磁盘以由磁场和移动盘产生的洛伦兹力驱动。 通过擦除头施加磁场持续一段时间，导致整个磁盘的擦除。 主轴电机在整个过程中未被激活。 不激活主轴电机消除了从擦除头到电机的任何法拉第耦合。

公开(公告)号：US07239475B1

公开(公告)日：2007-07-03

申请号：US10856322

申请日：2004-05-28

申请人： Jen-Tai Lin ,  Jin Hui Ou-Yang ,  Chiao-Ping Ku ,  Shuo-Hao Chen ,  Lin Yang

发明人： Jen-Tai Lin ,  Jin Hui Ou-Yang ,  Chiao-Ping Ku ,  Shuo-Hao Chen ,  Lin Yang

IPC分类号： G11B33/34

CPC分类号： G11B33/146 ,  G11B5/6005 ,  G11B17/32

摘要： A disk drive including a disk drive base, a disk coupled to the disk drive base, and a head stack assembly coupled to the disk drive base. The disk drive further includes an airflow diverter filter component disposed upstream of the head stack assembly with respect to disk rotation induced airflow for modifying the disk rotation induced airflow adjacent the head stack assembly. The filter component includes a first filter element disposed adjacent the disk surface, a second filter element disposed between the first filter element and the head stack assembly, and a third filter element having a porosity finer than the first and second filter elements. The third filter element is generally radially further than the second filter element from the axis of rotation. The disk rotation induced airflow generally enters the filter component through the first filter element and exits through the second and third filter elements.

摘要翻译： 磁盘驱动器，包括磁盘驱动器基座，耦合到磁盘驱动器基座的磁盘以及耦合到磁盘驱动器基座的磁头堆叠组件。 磁盘驱动器还包括气流分流器过滤器部件，其布置在磁头堆叠组件的相对于磁盘旋转引起的气流的上游，用于修改与磁头堆叠组件相邻的磁盘旋转引起的气流。 过滤器部件包括邻近盘表​​面设置的第一过滤器元件，设置在第一过滤器元件和头部堆叠组件之间的第二过滤元件，以及具有比第一和第二过滤元件更细小的孔隙的第三过滤元件。 第三过滤元件通常比旋转轴线径向地比第二过滤元件更远。 盘旋转诱导气流通常通过第一过滤元件进入过滤器部件并且通过第二和第三过滤器元件排出。

公开(公告)号：US5768784A

公开(公告)日：1998-06-23

申请号：US673534

申请日：1996-07-01

申请人： Carl D. Williams ,  Shuo-Hao Chen ,  Jackie Cordova

发明人： Carl D. Williams ,  Shuo-Hao Chen ,  Jackie Cordova

IPC分类号： F16C17/10 ,  B05B15/04 ,  F16C32/06 ,  F16C33/10 ,  F16C33/12 ,  F16C33/74 ,  F16C33/00

CPC分类号： F16C33/107 ,  F16C33/10 ,  F16C33/12 ,  F16C33/74 ,  Y10T29/49639 ,  Y10T29/49702 ,  Y10T29/49705 ,  Y10T29/49885 ,  Y10T29/49982 ,  Y10T29/49993

摘要： A coating system and method for facilitating the cleaning of hydrodynamic bearings and their associated structure is effectuated by applying a surface energy lowering coating to selected portions of the bearing other than the surface tension seal producing gaps thereof prior to a lubricant fluid fill. The coating system and method of the present invention may also advantageously be utilized to produce a secondary barrier seal extending a relatively short distance within and adjoining the opening of the surface tension seal producing gaps.

摘要翻译： 通过在润滑剂流体填充之前将表面能降低涂层施加到除了表面张力密封件之外的轴承的选定部分产生其间隙，从而促进流体动力轴承及其相关结构的清洁的涂覆系统和方法。 本发明的涂覆体系和方法也可以有利地用于产生在表面张力密封件的开口内部和邻近表面张力密封件的相对短的距离内延伸产生间隙的二级阻隔密封件。

公开(公告)号：US07876519B2

公开(公告)日：2011-01-25

申请号：US12335822

申请日：2008-12-16

申请人： Carl Xiaodong Che ,  Keung Youn Cho ,  Soo-Youl Hong ,  Shuo-Hao Chen

发明人： Carl Xiaodong Che ,  Keung Youn Cho ,  Soo-Youl Hong ,  Shuo-Hao Chen

IPC分类号： G11B5/03 ,  H01F13/00

CPC分类号： G11B5/0245

摘要： A method for erasing a disk of a hard disk drive. The method includes moving the hard disk drive adjacent to an erasure head that emanates a magnetic field. The magnetic field and moving hard disk drive cause a disk of the hard disk drive to spin under a Lorentz force created by the magnetic field and moving disk. The magnetic field is applied by the erasure head for a duration that causes erasure of the entire disk. The spindle motor is not activated during the entire process. Not activating the spindle motor eliminates any Faraday coupling from the erasure head into the motor.

摘要翻译： 一种擦除硬盘驱动器的磁盘的方法。 该方法包括移动与发出磁场的擦除头相邻的硬盘驱动器。 磁场和移动的硬盘驱动器使得硬盘驱动器的磁盘以由磁场和移动盘产生的洛伦兹力驱动。 通过擦除头施加磁场持续一段时间，导致整个磁盘的擦除。 主轴电机在整个过程中未被激活。 不激活主轴电机消除了从擦除头到电机的任何法拉第耦合。