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51. 发明授权

US06816343B1 Disk drive including an actuator coil with side segments equally overlapping inner and outer magnet sets 失效
标题翻译：磁盘驱动器包括具有与内部和外部磁体组等重叠的侧部分段的致动器线圈
公开(公告)号：US06816343B1
公开(公告)日：2004-11-09
申请号：US10355515
申请日：2003-01-31
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B555
CPC分类号： G11B5/5526
摘要： A disk drive includes a magnetic element and a coil. The magnetic element includes an inner magnet set including first and second inner magnets. The magnetic element further includes an outer magnet set including first and second outer magnets. The first outer magnet is circumferentially disposed along the first inner magnet. The second outer magnet is circumferentially disposed along the second inner magnet. The coil is attached to a coil support of an actuator and disposed overlapping within a magnet periphery of the magnetic element. The coil includes an inner segment, an outer segment, and a pair of side segments electrically connecting the inner and outer segments. The inner segment is disposed overlapping with the inner magnet set, the outer segment being disposed overlapping with the outer magnet set. Each of the side segments is disposed equally overlapping with the inner and outer magnet sets.
摘要翻译：磁盘驱动器包括磁性元件和线圈。磁性元件包括包括第一和第二内部磁体的内部磁体组。磁性元件还包括包括第一和第二外部磁体的外部磁体组。第一外磁体沿第一内磁体周向设置。第二外磁体沿着第二内磁体周向地设置。线圈附接到致动器的线圈支撑件并且设置在磁性元件的磁体周边内重叠。线圈包括内部段，外部段和电连接内部段和外部段的一对侧段。内部区段与内部磁体组重叠设置，外部区段设置为与外部磁体组重叠。每个侧段被设置成与内部和外部磁体组相等地重叠。

52. 发明授权

US06801404B1 Disk drive including a rotary actuator with thermo-conductive coil support element and coil 有权
标题翻译：磁盘驱动器包括具有热导线圈支撑元件和线圈的旋转执行器
公开(公告)号：US06801404B1
公开(公告)日：2004-10-05
申请号：US10232632
申请日：2002-08-30
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B3314
CPC分类号： G11B5/5526 , G11B5/4813
摘要： A disk drive includes a disk drive base and a rotary actuator coupled to the disk drive base. The rotary actuator includes an actuator body including a bore defining a longitudinal axis. The rotary actuator further includes a coil portion including a coil and a support element for supporting the coil. The coil support element is integrally formed with the actuator body and radially extends from the actuator body. The coil support element has a coil supporting surface generally perpendicular to the longitudinal axis. The coil is attached to the coil supporting surface. The coil support element is sized and configured to support the coil and formed of a thermo-conductive material for dissipating heat from the coil.
摘要翻译：磁盘驱动器包括磁盘驱动器基座和耦合到磁盘驱动器基座的旋转致动器。旋转致动器包括致动器主体，其包括限定纵向轴线的孔。旋转致动器还包括线圈部分，其包括线圈和用于支撑线圈的支撑元件。线圈支撑元件与致动器主体一体地形成并且从致动器主体径向延伸。线圈支撑元件具有大致垂直于纵向轴线的线圈支撑表面。线圈连接到线圈支撑表面。线圈支撑元件的尺寸和构造被设计成支撑线圈并且由用于从线圈散热的热导材料形成。

53. 发明授权

US06791801B1 Pivot bearing cartridge including ball bearing set and magnet element for ball bearing set pre-loading 失效
标题翻译：轴承套筒包括球轴承套件和用于球轴承预先装载的磁铁元件
公开(公告)号：US06791801B1
公开(公告)日：2004-09-14
申请号：US10086469
申请日：2002-02-28
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B2108
CPC分类号： F16C25/086 , F16C39/063 , F16C2370/12 , G11B5/4813 , G11B21/16
摘要： A pivot bearing cartridge for use in a head stack assembly. The cartridge includes a pivot shaft including a central axis, a shaft body and a shaft distal end. The cartridge includes a pivot sleeve disposed about the pivot shaft. The pivot sleeve includes a pivot sleeve annular body and a pivot sleeve closed end disposed adjacent the shaft distal end. The cartridge includes a ball bearing set disposed between and in mechanical communication with the shaft body and the pivot sleeve annular body. The cartridge includes a shaft magnet element attached to the shaft distal end adjacent the pivot sleeve closed end. The shaft magnet element is sized and configured to apply a magnetic force to the pivot sleeve in a direction along the central axis for pre-loading the ball bearing set.
摘要翻译：用于头部堆叠组件的枢转轴承盒。该盒包括一个包括中心轴线，一个轴体和一个轴远端的枢轴。盒包括围绕枢轴设置的枢轴套筒。枢轴套筒包括枢轴套筒环形体和邻近轴远端设置的枢轴套筒闭合端。所述筒包括设置在所述轴体和所述枢转套筒环形体之间并且与所述轴体和所述枢转套筒环形体机械连通的滚珠轴承组。所述筒包括附接到所述轴远端的轴磁体元件，所述轴远端邻近所述枢轴套筒封闭端。轴磁体元件的尺寸和构造可以在沿着中心轴线的方向上向枢轴套筒施加磁力，以预加载球轴承组。

54. 发明授权

US06421208B1 Disk drive employing a voice coil motor comprising a yoke for generating a undirectional magnetic flux and a voice coil partially interacting with the undirectional magnetic flux 失效
标题翻译：采用音圈电动机的磁盘驱动器包括用于产生非定向磁通量的磁轭和与非定向磁通部分相互作用的音圈
公开(公告)号：US06421208B1
公开(公告)日：2002-07-16
申请号：US09584652
申请日：2000-05-30
申请人： Kamran Oveyssi
发明人： Kamran Oveyssi
IPC分类号： G11B2102
CPC分类号： G11B21/02 , H02K41/0358
摘要： A disk drive is disclosed including a disk, an actuator arm including a head, and a voice coil motor for actuating the actuator arm to position the head radially over the disk. The voice coil motor includes a voice coil portion including a first side and a second side opposite the first side for conducting a current. The current conducted by the first side generates a first side magnetic flux in a first direction, and the current conducted by the second side generates a second side magnetic flux in a second direction different from the first direction. The voice coil motor further includes a rotary voice coil yoke including a first magnet for generating a unidirectional magnetic flux, and a magnetic flux conductor shaped to form an air gap with respect to the first magnet, the magnetic flux conductor for guiding the unidirectional magnetic flux through the air gap. The first side of the voice coil portion is located substantially within the air gap such that the first side magnetic flux substantially interacts with the unidirectional magnetic flux, and the second side of the voice coil portion is located substantially outside the air gap such that the second side magnetic flux does not substantially interact with any magnetic flux.
摘要翻译：公开了一种磁盘驱动器，其包括盘，包括头的致动器臂和用于致动致动器臂以将头部径向定位在盘上的音圈电机。音圈电动机包括音圈部分，其包括第一侧和与第一侧相对的第二侧，用于传导电流。由第一侧传导的电流在第一方向产生第一侧磁通，并且由第二侧传导的电流在与第一方向不同的第二方向上产生第二侧磁通。音圈电动机还包括旋转音圈，其包括用于产生单向磁通的第一磁体和形成为相对于第一磁体形成气隙的磁通导体，用于引导单向磁通的磁通导体通过气隙。音圈部分的第一侧基本上位于气隙内，使得第一侧磁通与单向磁通基本相互作用，并且音圈部分的第二侧基本上位于气隙的外侧，使得第二侧侧磁通量基本上不与任何磁通量相互作用。

55. 发明授权

US5808839A Disc drive cartridge including magnetic bearings 失效
标题翻译：盘式驱动器盒包括磁性轴承
公开(公告)号：US5808839A
公开(公告)日：1998-09-15
申请号：US714507
申请日：1996-09-16
申请人： John Charles Dunfield , Kamran Oveyssi
发明人： John Charles Dunfield , Kamran Oveyssi
IPC分类号： F16C39/06 , G11B5/48 , G11B5/55
CPC分类号： F16C39/063 , F16C32/0425 , G11B5/4813 , G11B5/5521 , F16C2370/12
摘要： A disc drive cartridge is disclosed comprising a central actuator arm pivot hub mounting one magnetic pole, which in turn rotates within and overlaps a u-shaped upright base and sleeve supporting a second non-aligned magnetic pole. The system relies on the radial repulsive forces of the separate magnetic poles to achieve significant radial stability; in certain embodiments, attractive forces between axially aligned magnetic poles or a magnetic pole and a sleeve of high permeability magnetic material are also utilized to enhance the axial stability of the system. The rotating hub supports on one side one or more actuator arms and on the other side a coil of a voice coil motor, so that this magnetic bearing can be the central pivot for a very small compact and low noise disc drive cartridge.
摘要翻译：公开了一种盘驱动器盒，其包括安装一个磁极的中央执行器臂枢转毂，该磁极又在支撑第二非对准磁极的u形立柱底座和套筒内旋转并重叠。该系统依赖于单独磁极的径向排斥力，以获得显着的径向稳定性; 在某些实施例中，也利用轴向对准的磁极或磁极与高磁导率磁性材料的套筒之间的吸引力来增强系统的轴向稳定性。旋转轮毂在一侧支撑一个或多个致动器臂，另一侧支撑音圈电机的线圈，使得该磁轴承可以是用于非常小的紧凑且低噪音的盘驱动器盒的中心枢轴。

56. 发明授权

US5698911A Low leakage actuator for high performance 失效
标题翻译：低泄漏执行器，用于高性能
公开(公告)号：US5698911A
公开(公告)日：1997-12-16
申请号：US443432
申请日：1995-05-17
申请人： John C. Dunfield , Kamran Oveyssi
发明人： John C. Dunfield , Kamran Oveyssi
IPC分类号： G11B5/55 , G11B7/085 , G11B11/105 , G11B21/08 , H02K41/035 , H02K41/02 , G11B33/00
CPC分类号： H02K41/0358 , G11B21/08 , G11B5/5521 , G11B11/10569 , G11B7/08576
摘要： An actuator, suited for rapidly and precisely locating the head of a disc drive, reduces variations in flux density and reluctance torque across the entire effective stroke width of the actuator. The actuator, cooperating with a voice coil motor, includes a central yoke, upper and lower yokes aligned above and below the central yoke, and side yokes all formed of magnetic permeable material, a coil movable over the central yoke, and magnets supported from the upper and lower yokes and aligned with the stroke width of the coil. The upper and lower yoke pieces are profiled to have an increased radius in the region near the ends of these yokes and near the end of the coil stroke arc. This maximizes the flux density passing through these yokes so that the flux density and torque applied to the actuator is made linear. The simple structure improves performance without any substantial increase in the design envelope and operates at high efficiency. Alternative configurations provide for portions of the central pole piece beyond the end of the stroke of the coil to become gradually wider or thicker so that the flux flow around the corners where the central pole piece meets the side pieces of the yoke does not saturate and reduce torque at the actuator, and a variation where the magnets are shaped in the vertical axis perpendicular to the plane of motion of the coil in order to promote the flux passage or distribution through the yoke.
摘要翻译：适用于快速且精确地定位磁盘驱动器磁头的执行机构可以减小驱动器整个有效行程宽度上磁通密度和磁阻转矩的变化。与音圈电动机配合的致动器包括中心轭，中心轭上方和下方配置的上轭和下轭，以及可由磁性可渗透材料形成的侧轭，可在中心轭上移动的线圈，上下轭，并与线圈的行程宽度对齐。上轭铁片和下轭铁片在这些轭的端部附近的区域附近具有增加的半径，并且在线圈行程弧的末端附近。这使通过这些磁轭的通量密度最大化，使得施加到致动器的磁通密度和扭矩成线性。简单的结构提高了性能，而没有设计范围的任何实质性增加并且以高效率运行。替代配置提供了超过线圈行程末端的中心极片的部分逐渐变宽或变厚，使得中心极片与轭的侧片相交的拐角周围的磁通流不会饱和并减少致动器处的扭矩以及垂直于线圈运动平面的垂直轴成形磁铁的变化，以促进通过磁轭的磁通通过或分配。

57. 发明授权

US5578882A Passive magnetic bearings for a spindle motor 失效
标题翻译：用于主轴电机的无源磁轴承
公开(公告)号：US5578882A
公开(公告)日：1996-11-26
申请号：US460648
申请日：1995-06-02
申请人： John C. Dunfield , Kamran Oveyssi , Gunter K. Heine
发明人： John C. Dunfield , Kamran Oveyssi , Gunter K. Heine
IPC分类号： F16C17/08 , F16C39/06 , G11B19/20 , H02K7/09 , H02K21/14
CPC分类号： F16C17/08 , F16C25/045 , F16C32/0417 , F16C32/0425 , F16C39/063 , G11B19/2009 , H02K7/09 , F16C2370/12
摘要： An apparatus for rotatably journaling a rotor of a spindle motor about a shaft comprising a plurality of annular ring multi-pole magnets, each ring comprised of a plurality of axially aligned magnets whose polarity is alternated along the radius of the ring. The annular ring multi-pole magnets are disposed on both the rotor and stator of a spindle motor in opposition in attraction mode, or a complete offset repulsion mode with like poles facing one another with an full offset, thereby forming a radially stable magnetic bearing for maintaining rotor displacement about a shaft in conjunction with a conventional axial pivot.
摘要翻译：一种用于将主轴电动机的转子围绕包括多个环形多极磁体的轴可旋转地旋转的装置，每个环由多个轴向对准的磁体组成，其极性沿着环的半径交替。环形多极磁铁在主轴电动机的转子和定子上以吸引模式相对设置，或者具有相同磁极彼此面对的全偏移斥力模式，从而形成径向稳定的磁轴承，结合传统的轴向枢轴保持绕轴的转子位移。

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