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1. 发明授权

US06538836B1 Microactuator for fine positioning in a disc drive 失效
公开(公告)号：US06538836B1
公开(公告)日：2003-03-25
申请号：US08438091
申请日：1995-05-08
申请人： John Charles Dunfield , Gunter Karl Heine
发明人： John Charles Dunfield , Gunter Karl Heine
IPC分类号： G11B2102
CPC分类号： G11B5/5552
摘要： An actuator arm assembly is provided in a disc drive. The disc drive includes a disc with a surface for storing information and a first actuator for moving the actuator arm assembly relative to the surface of the disc. The actuator arm assembly includes an actuator arm coupled to the first actuator, a load beam coupled to the actuator arm, a suspension coupled to the load beam and an air bearing coupled to the suspension. A transducer is mounted on the air bearing and positioned to access the surface of the disc. A second actuator is coupled to the air bearing and the load beam and is controllable to move the air bearing relative to the surface of the disc and relative to the load beam.

2. 发明授权

US06335850B1 Microactuator for fine positioning in a disc drive 失效
标题翻译：用于在光盘驱动器中精细定位的微型致动器
公开(公告)号：US06335850B1
公开(公告)日：2002-01-01
申请号：US09497688
申请日：2000-02-04
申请人： John Charles Dunfield , Gunter Karl Heine
发明人： John Charles Dunfield , Gunter Karl Heine
IPC分类号： G11B556
CPC分类号： G11B5/5552
摘要： An actuator arm assembly is provided in a disc drive. The disc drive includes a disc with a surface for storing information and a first actuator for moving the actuator arm assembly relative to the surface of the disc. The actuator arm assembly includes an actuator arm coupled to the first actuator, a load beam coupled to the actuator arm, a suspension coupled to the load beam and an air bearing coupled to the suspension. A transducer is mounted on the air bearing and positioned to access the surface of the disc. A second actuator is coupled to the air bearing and the load beam and is controllable to move the air bearing relative to the surface of the disc and relative to the load beam.
摘要翻译：驱动器臂组件设置在盘驱动器中。盘驱动器包括具有用于存储信息的表面的盘和用于相对于盘的表面移动致动器臂组件的第一致动器。致动器臂组件包括联接到第一致动器的致动器臂，耦合到致动器臂的负载梁，耦合到负载梁的悬架和联接到悬架的空气轴承。传感器安装在空气轴承上并定位成进入盘的表面。第二致动器联接到空气轴承和负载梁并且可控制以相对于盘的表面和相对于负载梁移动空气轴承。

3. 发明授权

US5694268A Spindle motor having overmolded stator 失效
标题翻译：主轴电机具有包覆成型定子
公开(公告)号：US5694268A
公开(公告)日：1997-12-02
申请号：US550175
申请日：1995-10-30
申请人： John Charles Dunfield , Gunter Karl Heine
发明人： John Charles Dunfield , Gunter Karl Heine
IPC分类号： G11B19/20 , G11B25/04 , H02K1/18 , G11B17/02 , H02K5/24 , H02K7/14
CPC分类号： G11B19/2018 , H02K1/185 , H02K1/187 , G11B25/043
摘要： A disc drive spindle motor for rotating at least one disc in a data storage device includes a base, a shaft, a rotor and a stator. A bearing interconnects the rotor with the shaft and allows the rotor to rotate about the shaft. An overmold encapsulates at least a portion of the stator and provides the stator with a smooth external surface. The overmold mechanically isolates the stator from the base and damps sympathetic vibrations in the stator structure to reduce the generation of acoustic noise in the storage device.
摘要翻译：用于旋转数据存储装置中的至少一个盘的盘驱动主轴电机包括基座，轴，转子和定子。轴承将转子与轴相互连接并允许转子绕轴旋转。包覆模制封装了定子的至少一部分，并为定子提供了光滑的外表面。包覆模具将定子与基座机械隔离，并且抑制定子结构中的交感振动，以减少存储装置中的声音噪声的产生。

4. 发明授权

US5956204A Magnetic disc drive having magnetic particle trap for hydrodynamic bearing 失效
标题翻译：具有用于流体动力轴承的磁性颗粒捕集器的磁盘驱动器
公开(公告)号：US5956204A
公开(公告)日：1999-09-21
申请号：US387463
申请日：1995-02-13
申请人： John Charles Dunfield , Norbert Steven Parsoneault
发明人： John Charles Dunfield , Norbert Steven Parsoneault
IPC分类号： F16C17/24 , F16C33/10 , G11B19/20 , G11B25/04 , G11B33/14 , G11B17/02 , B01D35/06 , F01M1/10 , F16C32/06
CPC分类号： F16C17/24 , F16C33/107 , G11B19/2018 , G11B25/043 , G11B33/14 , F16C2370/12
摘要： A magnetic disc drive system includes a hydrodynamic bearing. The magnetic disc drive system includes a disc drive chassis, a magnetic storage disc, and a read/write transducer adjacent to the disc for reading and writing information on the disc. The hydrodynamic bearing assembly rotatably couples the magnetic storage disc to the disc drive chassis. The hydrodynamic bearing assembly includes a fluid path therethrough for circulating a fluid. A permanent magnet is placed in the fluid path and used for attracting magnetic particles carried in the fluid.
摘要翻译：磁盘驱动系统包括流体动力轴承。磁盘驱动系统包括盘驱动器机架，磁存储盘以及与盘相邻的读/写传感器，用于在盘上读取和写入信息。流体动力轴承组件将磁存储盘可旋转地连接到盘驱动器底盘。流体动力轴承组件包括通过其流过流体的流体路径。永磁体被放置在流体路径中并用于吸引流体中携带的磁性颗粒。

5. 发明授权

US5815345A Support flange having electrical contacts to provide electrical continuity upon spindle motor mounting to base 失效
标题翻译：支撑法兰具有电触点，以在主轴电机安装到基座上提供电连续性
公开(公告)号：US5815345A
公开(公告)日：1998-09-29
申请号：US692859
申请日：1996-07-30
申请人： Robert Michael Pelstring , Klaus Dieter Kloeppel , John Charles Dunfield , Michael Kenneth Andrews , Clifford Thomas Jue
发明人： Robert Michael Pelstring , Klaus Dieter Kloeppel , John Charles Dunfield , Michael Kenneth Andrews , Clifford Thomas Jue
IPC分类号： G11B19/20 , G11B25/04 , G11B33/12 , H02K3/52 , H02K5/173 , H02K5/22 , G11B17/00 , H02K3/00
CPC分类号： G11B33/121 , G11B19/2009 , G11B25/043 , G11B33/122 , H02K11/40 , H02K3/522 , H02K5/1735 , H02K5/225 , H02K2203/03 , H02K2211/03
摘要： Spindle motor electrical- and motor-to-base interfaces. A compliant connector along with a circuit on a support flange is provided below a stator assembly for providing: An insertable spindle motor to drive base with less specific orientation. The support flange may comprise a small printed circuit cable or a printed circuit board. Additionally, non-specific orientation of a spindle motor to drive base assembly is described using circular traces oriented about a support flange. A circular connector is also described, as a biased support flange.
摘要翻译：主轴电机电动和电机到基座接口。在定子组件的下方提供了兼容的连接器以及在支撑凸缘上的电路，用于提供：可插入的主轴电机以较不特定的取向来驱动基座。支撑凸缘可以包括小的印刷电路电缆或印刷电路板。此外，使用围绕支撑凸缘定向的圆形轨迹来描述主轴电动机用于驱动基座组件的非特定取向。还描述了圆形连接器，作为偏置的支撑凸缘。

6. 发明授权

US5774974A Retaining ring for disc drive spindle motor 失效
标题翻译：磁盘驱动主轴电机固定环
公开(公告)号：US5774974A
公开(公告)日：1998-07-07
申请号：US460076
申请日：1995-06-02
申请人： John Charles Dunfield , Steven Craig Knoche , Klaus Dieter Kloeppel
发明人： John Charles Dunfield , Steven Craig Knoche , Klaus Dieter Kloeppel
IPC分类号： G11B19/20 , H02K1/18 , H02K3/52 , H02K5/22 , H02K5/24 , H02K15/00
CPC分类号： H02K3/522 , G11B19/20 , G11B19/2009 , H02K1/187 , H02K15/0056 , H02K15/0075 , H02K2203/03 , H02K2203/06 , H02K2211/03 , H02K5/225 , H02K5/24 , Y10T29/49009
摘要： A disc drive includes a disc drive motor for rotating a storage disc. The motor includes a motor base which carries a wiring assembly having a plurality of electrical contacts. A rotor hub is rotatably coupled to the base and rotatably carries a storage disc. The rotor hub includes a permanent magnet. A stator assembly includes a plurality of stator windings adapted for operation with the permanent magnet of the rotor hub. A wire guide coupled to the stator assembly positions wires of the stator windings adjacent the electrical contacts of the wiring assembly. The wires are soldered to the contacts after which the wiring guide can be removed. The stator assembly can be "potted" in an adhesive to reduce problems associated with resonant frequency of the disc drive motor. The wire guide acts as a retainer for the adhesive preventing the adhesive from interfering with rotation of the rotatable hub.
摘要翻译：盘驱动器包括用于旋转存储盘的盘驱动马达。该电动机包括一个电动机底座，该电动机底座承载具有多个电触点的接线组件。转子毂可旋转地联接到基座并且可旋转地承载存储盘。转子毂包括永磁体。定子组件包括适于与转子毂的永磁体一起操作的多个定子绕组。联接到定子组件的导线引导件定位绕组的导线邻近布线组件的电触头。导线被焊接到触点上，之后可以去除导线。定子组件可以以“封装”在粘合剂中以减少与盘驱动马达的共振频率相关的问题。线引导件用作粘合剂的保持器，防止粘合剂干扰可旋转毂的旋转。

7. 发明授权

US5949613A Disk drive spindle motor assembly with stator having a resilient covering with a routing means, an attaching means and a connecting means to operatively connect stator to a base 失效
标题翻译：具有定子的磁盘驱动主轴电动机组件具有带有路由装置的弹性覆盖物，附接装置和连接装置，以将定子可操作地连接到基座
公开(公告)号：US5949613A
公开(公告)日：1999-09-07
申请号：US767709
申请日：1996-12-17
申请人： Michael Bruce Moir , Richard Gene Krum , John Charles Dunfield , Gregory James Blanchette
发明人： Michael Bruce Moir , Richard Gene Krum , John Charles Dunfield , Gregory James Blanchette
IPC分类号： G11B25/04 , H02K3/44 , H02K3/50 , H02K5/24 , G11B17/02 , H02K11/00
CPC分类号： H02K3/44 , G11B25/043 , H02K3/50 , H02K5/24
摘要： A spindle motor assembly adapted for rotationally supporting a load about a base includes a rotor rotatably mounted on the base with its outer periphery capable of supporting a load, a stator and a plurality of magnets mounted on the outer periphery of the rotor. The stator includes a plurality of stator laminations with selective portions of the stator laminations forming stator cores. A plurality of magnets are mounted on the outer periphery of the rotor in an operating relationship with the stator cores. A plurality of conductors are wound on the stator cores. The stator includes a resilient covering located around the plurality of laminations and further having a routing means to route the conductors between the stator cores, an attaching means to attach the stator to the base and a connecting means. The connecting means includes a first connector block with a plurality of first conductor pads, with a first end and a second end. Ends of the conductors are connected to the first end of the conductor pads. A second connector block is mounted on the base, with the second connector block having a plurality of second conductor pads. The second end of the first conductor pads are connected to the second conductor pads of the second connector block.
摘要翻译：主轴电动机组件适于围绕基座旋转地支撑负载，包括可旋转地安装在基座上的转子，其外周能够支撑负载，定子以及安装在转子的外周上的多个磁体。定子包括多个定子叠片，定子叠片的选择部分形成定子芯。多个磁体以与定子铁心的操作关系安装在转子的外周上。多个导体缠绕在定子芯上。定子包括位于多个叠片周围的弹性覆盖物，并且还具有将导体定位在定子芯之间的布线装置，将定子连接到基座的连接装置和连接装置。连接装置包括具有多个第一导体焊盘的第一连接器块，其具有第一端和第二端。导体的端部连接到导体焊盘的第一端。第二连接器块安装在基座上，第二连接器块具有多个第二导体焊盘。第一导体焊盘的第二端连接到第二连接器块的第二导体焊盘。

8. 发明授权

US6029978A Grounding and conductivity improvement for ferrofluid seals 失效
标题翻译：铁磁流体密封件的接地和导电性改进
公开(公告)号：US6029978A
公开(公告)日：2000-02-29
申请号：US935245
申请日：1997-09-22
申请人： Robert Michael Pelstring , John Charles Dunfield
发明人： Robert Michael Pelstring , John Charles Dunfield
IPC分类号： F16J15/43 , G11B19/20 , F16J15/00
CPC分类号： G11B19/2009 , F16J15/43
摘要： A motor is disclosed which includes a shaft and a hub rotating relative to one another and defining a bore therebetween. Also disclosed is a magnetic fluid seal which includes pole pieces supported from the hub, the pole pieces extend toward the shaft. The pole pieces sandwich a non-conducting magnet in a space between the pole pieces. In addition, a contacting process is supported from one of the pole pieces for making electrical contact with the other pole piece to enhance electrical conductivity between the hub and shaft.
摘要翻译：公开了一种电动机，其包括轴和相对于彼此旋转并在其间限定孔的轮毂。还公开了一种磁性流体密封件，其包括从毂支撑的极片，极片朝向轴延伸。极片将非导电磁体夹在极片之间的空间中。此外，接触过程由一个极片支撑以与另一个极片电接触，以增强轮毂和轴之间的导电性。

9. 发明授权

US5907455A Distributed spindle motor integrated with disc 失效
标题翻译：分布式主轴电机与光盘集成
公开(公告)号：US5907455A
公开(公告)日：1999-05-25
申请号：US648351
申请日：1996-05-15
申请人： John Charles Dunfield
发明人： John Charles Dunfield
IPC分类号： G11B5/012 , G11B19/20 , G11B25/04 , G11B33/12 , H02K7/14 , H02K19/10 , H02K21/24 , H02K29/06 , H02K31/00 , H02K41/035 , G11B17/02
CPC分类号： G11B33/121 , G11B19/2009 , G11B25/043 , H02K19/103 , H02K21/24 , H02K29/06 , H02K31/00 , H02K41/035 , H02K7/14 , G11B5/012
摘要： The spindle motor is integrated with the disc by incorporating one of the poles or coils of the motor with a region on the disc, and the remaining portion of the motor being distributed over an internal surface or surfaces of the housing for the disc, or over the edge of an adjacent disc. By activating the portion of the motor which is supported from the disc housing, the disc can be rotationally driven. The motor poles may be either deposited or etched on the disc, or separately formed and attached to the disc housing. The result is a substantially smaller height disc drive, achieved with a much reduced cost.
摘要翻译：主轴电动机通过将电动机的极点或线圈中的一个与盘上的区域并入而与盘一体化，并且电动机的剩余部分分布在用于盘的壳体的内表面或表面上相邻光盘的边缘。通过启动从盘壳体支撑的马达的部分，盘可被旋转地驱动。电机极可以沉积或蚀刻在盘上，或者单独形成并附接到盘壳体。结果是实现了大大降低的成本的高度盘驱动器。

10. 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。

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