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1. 发明授权

US07284910B2 Capillary seal with flow restrictors 有权
标题翻译：带流量限制器的毛细管密封
公开(公告)号：US07284910B2
公开(公告)日：2007-10-23
申请号：US10860941
申请日：2004-06-03
申请人： Daniel Dennis Dittmer , Robert Michael Pelstring , Anthony J. Aiella , Lynn Bich-Ouy Le , Hans L. Leuthold , Alan Lyndon Grantz
发明人： Daniel Dennis Dittmer , Robert Michael Pelstring , Anthony J. Aiella , Lynn Bich-Ouy Le , Hans L. Leuthold , Alan Lyndon Grantz
IPC分类号： F16C7/00 , F16C32/06
CPC分类号： F16C33/103 , F16C33/745 , F16C2370/12 , G11B19/2009
摘要： A disk drive motor having a capillary bearing seal is provided. In one embodiment, a disk drive motor includes a stationary assembly and a rotating assembly having a fluid dynamic journal bearing disposed therebetween. A capillary seal is defined proximate an upper end of the journal bearing and coupled to at least one re-circulation path. The capillary seal is configured to advantageously retain lubricating fluids within the motor when the motor is subjected to lateral shock.
摘要翻译：提供具有毛细管轴承密封件的盘驱动马达。在一个实施例中，磁盘驱动电动机包括固定组件和旋转组件，其具有设置在其间的流体动态轴颈轴承。毛细管密封件被限定在轴颈轴承的上端附近并耦合到至少一个再循环路径。毛细管密封件构造成当马达受到横向冲击时有利地将润滑流体保持在马达内。

2. 发明授权

US06976682B1 Apparatus and method for forming a rotatable ferrofluidic seal between a shaft and a hub 失效
标题翻译：用于在轴和轮毂之间形成可旋转铁磁流体密封的装置和方法
公开(公告)号：US06976682B1
公开(公告)日：2005-12-20
申请号：US09489594
申请日：2000-01-21
申请人： Donald James Macleod , Robert Michael Pelstring , Marten Fredrick Byl , Jeffry Arnold LeBlanc , Tan Hung Pham , Robert Alan Notingham , Michael James Whittome
发明人： Donald James Macleod , Robert Michael Pelstring , Marten Fredrick Byl , Jeffry Arnold LeBlanc , Tan Hung Pham , Robert Alan Notingham , Michael James Whittome
IPC分类号： F16J15/43 , G11B17/028 , G11B19/20 , F16J15/33 , F16C19/00
CPC分类号： F16J15/43 , F16C19/06 , F16C2370/12 , G11B17/0282 , G11B19/2009
摘要： An apparatus and method are provided for sealing an outer surface 170 of a shaft 175 to an inner surface 165 of a hub 160. The seal includes a magnet 155, with top and bottom pole pieces 260, 265, and a ferrofluid 270 magnetically held in a gap 275 between the pole pieces 260, 265, and the hub 160 or the shaft 175. The top pole piece 260 has a cross-section that is L-shaped, with a horizontal portion 260a parallel to the magnet 155 and a shorter vertical portion 260b facing the shaft 175. In one version, the vertical portion 260b or the portion of the shaft 175 facing it is contoured to provide a flux gradient that axially concentrates the ferrofluid 270 in the gap 275. In another aspect, a catcher 335 is provided to reduce loss of ferrofluid 270 when the ferrofluidic seal 185 used to form an outside seal. In yet another aspect, a stationary ferrofluidic seal 345 is provided for sealing a stationary shaft 350 to a rotating hub 355.
摘要翻译：提供了一种用于将轴175的外表面170密封到毂160的内表面165的装置和方法。密封件包括磁体155，其具有顶部和底部极片260,265以及磁性保持在其中的铁磁流体270 极片260,265和毂160或轴175之间的间隙275.顶极片260具有L形的横截面，水平部分260平行于磁体155并且更短垂直部分260b面向轴175.在一种形式中，垂直部分260b或面向其的轴175的部分成形为提供将铁磁流体270轴向集中在间隙275中的通量梯度。另一方面，提供捕集器335以在用于形成外部密封件的铁磁流体密封件185时减少铁磁流体270的损失。在另一方面，提供固定式铁磁流体密封件345，用于将固定轴350密封到旋转毂355。

3. 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。

4. 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。

5. 发明授权

US5664314A Method of making a spindle motor to allow magnetic alignment between the magnet and the stator in the motor 失效
标题翻译：制造主轴电动机以允许电动机中的磁体和定子之间磁性对准的方法
公开(公告)号：US5664314A
公开(公告)日：1997-09-09
申请号：US437452
申请日：1995-05-08
申请人： Robert Michael Pelstring , Gunter Karl Heine
发明人： Robert Michael Pelstring , Gunter Karl Heine
IPC分类号： G11B19/20 , H02K15/03 , H02K15/16
CPC分类号： H02K15/16 , G11B19/2009 , H02K15/03 , Y10T29/49009 , Y10T29/49025
摘要： A spindle motor in a disc drive has a rotor assembly rotatably mounted to a base. A stator is mounted to the base and a magnet is mounted to the rotor assembly. The magnet or the stator is allowed to move in an axial direction relative to the other under the influence of magnetic interaction between the magnet and the stator. The magnet and stator are then rigidly fixed relative to one another in the axial direction.
摘要翻译：盘驱动器中的主轴电动机具有可旋转地安装到基座的转子组件。定子被安装到基座上，并且磁体安装到转子组件上。在磁体和定子之间的磁相互作用的影响下，允许磁体或定子相对于另一个在轴向方向上移动。然后，磁体和定子在轴向上相对于彼此刚性地固定。

6. 发明授权

US6018438A Protective magnet shield for a spindle motor 失效
标题翻译：主轴电机用保护磁铁屏蔽
公开(公告)号：US6018438A
公开(公告)日：2000-01-25
申请号：US50846
申请日：1998-03-30
申请人： Robert Alan Nottingham , Robert Michael Pelstring
发明人： Robert Alan Nottingham , Robert Michael Pelstring
IPC分类号： G11B19/20 , H02K1/27 , H02K15/03 , G11B17/02 , H02K23/00
CPC分类号： G11B19/2009 , H02K1/2733 , H02K15/03
摘要： A simplified spindle motor assembly is disclosed, in which the need for scrap or rework of the motor as it is being assembled is reduced, and a protective shield for the magnet protects the magnet from bumping into the sharp edges of the stator when the sleeve of the motor which supports the magnet is being assembled into the base of the disc drive. In addition, the simplified device for aligning the magnet axially along the sleeve properly aligns the magnet axially with the stator which is separately supported from the base when the sleeve and shaft are assembled into the base.
摘要翻译：公开了一种简化的主轴电动机组件，其中在组装电机时对电机的废料或返工的需求减少，并且用于磁体的保护罩保护磁体免于撞击定子的尖锐边缘，支撑磁体的马达正在组装到盘驱动器的基座中。此外，用于沿着套筒轴向对准磁体的简化装置将磁体与定子轴向对准，当套筒和轴组装到基座中时，定子分别从基座支撑。

7. 发明授权

US6084323A Spindle motor having a magnet which is field centered relative to the stator 失效
标题翻译：主轴电动机具有相对于定子以场为中心的磁体
公开(公告)号：US6084323A
公开(公告)日：2000-07-04
申请号：US876927
申请日：1997-06-16
申请人： Robert Michael Pelstring , Gunter Karl Heine
发明人： Robert Michael Pelstring , Gunter Karl Heine
IPC分类号： G11B19/20 , H02K15/03 , H02K15/16 , H02K5/02
CPC分类号： H02K15/16 , G11B19/2009 , H02K15/03 , Y10T29/49009 , Y10T29/49025
摘要： A spindle motor in a disc drive has a rotor assembly rotatably mounted to a base. A stator is mounted to the base and a magnet is mounted to the rotor assembly. The magnet or the stator is allowed to move in an axial direction relative to the other under the influence of magnetic interaction between the magnet and the stator. The magnet and stator are then rigidly fixed relative to one another in the axial direction.
摘要翻译：盘驱动器中的主轴电动机具有可旋转地安装到基座的转子组件。定子被安装到基座上，并且磁体安装到转子组件上。在磁体和定子之间的磁相互作用的影响下，允许磁体或定子相对于另一个在轴向方向上移动。然后，磁体和定子在轴向上相对于彼此刚性地固定。

8. 发明授权

US6057616A Stator interconnect ring 失效
公开(公告)号：US6057616A
公开(公告)日：2000-05-02
申请号：US54335
申请日：1998-04-02
申请人： Robert Michael Pelstring
发明人： Robert Michael Pelstring
IPC分类号： H02K3/52 , H02K5/22 , H02K11/00
CPC分类号： H02K3/522 , H02K2203/03 , H02K5/225 , Y10S310/06
摘要： A spindle motor incorporates a hollow shaft and a prewound stator having an interconnect ring attached to one end of the stator assembly. The interconnect ring is preferably a printed circuit or flexible printed circuit; it is bonded to the stator stack before the coils are wound, and the start and finish of each phase winding is terminated to the interconnect ring. Once the stator is assembled onto the shaft, connector wires can be fed up through the shaft and terminated at the interconnect ring. Traces on the interconnect ring join the wires to the proper phases and to the commons to control motor operation.

9. 发明授权

US5801902A Setting bearing preload utilizing thermal exspansion/contraction 失效
标题翻译：使用热膨胀/收缩设置轴承预载
公开(公告)号：US5801902A
公开(公告)日：1998-09-01
申请号：US613827
申请日：1996-02-29
申请人： Klaus Dieter Koeppel , Robert Michael Pelstring , Alan Lyndon Grantz , Steven Craig Knoche
发明人： Klaus Dieter Koeppel , Robert Michael Pelstring , Alan Lyndon Grantz , Steven Craig Knoche
IPC分类号： F16C19/54 , F16C25/06 , F16C35/06 , G11B17/028 , G11B17/02 , F16C33/04
CPC分类号： F16C19/54 , F16C25/06 , F16C35/061 , G11B17/028
摘要： Bearings in a motor or bearing cartridge are positioned relative to the shaft and an outer sleeve, and a bearing retainer is then pressed against the outer races of one of the bearings in order to hold the bearings in position and preload the bearings in a desired orientation. The bearing retainer is chilled to a temperature significantly different than the sleeve with which it cooperates; shrinking the retainer to a size where it may be slip fit within a sleeve or other means for supporting the bearings in place. The retainer is then pressed against the outer races of the bearings, and held in place while it returns to the temperature of the sleeve within which it is fit. In this way, the preload is defined and maintained for the long term, as the retainer is pressed tightly against the outer race of the bearings; and the retainer is held within the sleeve as it returns to the same temperature being chilled is eliminated. In an alternative approach, the retainer ring may be heated to expand its internal diameter, and after being heated to a temperature which is greater than the sleeve, is slipped over the outside of the sleeve while the bearings are being held with the required preload.
摘要翻译：电动机或轴承盒中的轴承相对于轴和外套筒定位，然后将轴承保持器压靠在其中一个轴承的外座圈上，以便将轴承保持在适当位置并以期望的方向预紧轴承。轴承保持架被冷却至与其配合的套管明显不同的温度; 将保持器收缩到其可以滑动配合在套筒内的尺寸或用于将轴承支撑在适当位置的其它装置。然后将保持器压靠在轴承的外圈上，并保持在适当的位置，同时保持在其适合的套筒的温度。以这种方式，由于保持器紧紧地压靠在轴承的外圈上，预定义被长期限定和维持，并且当其返回到被冷却的相同温度时，保持器保持在套筒内。在替代方法中，保持环可以被加热以扩大其内径，并且在被加热到大于套筒的温度之后，在轴承被保持所需的预载荷的同时，滑动在套筒的外部。

10. 发明授权

US06614138B1 Stator interconnect ring 失效
标题翻译：定子互连环
公开(公告)号：US06614138B1
公开(公告)日：2003-09-02
申请号：US09330277
申请日：1999-06-11
申请人： Robert Michael Pelstring
发明人： Robert Michael Pelstring
IPC分类号： H02K1100
CPC分类号： H02K3/522 , H02K5/225 , H02K2203/03 , Y10S310/06
摘要： A spindle motor incorporates a hollow shaft and a prewound stator having an interconnect ring attached to one end of the stator assembly. The interconnect ring is preferably a printed circuit or flexible printed circuit; it is bonded to the stator stack before the coils are wound, and the start and finish of each phase winding is terminated to the interconnect ring. Once the stator is assembled onto the shaft, connector wires can be fed up through the shaft and terminated at the interconnect ring. Traces on the interconnect ring join the wires to the proper phases and to the commons to control motor operation.
摘要翻译：主轴电动机包括中空轴和预定子定子，其具有连接到定子组件的一端的互连环。互连环优选为印刷电路或柔性印刷电路; 在卷绕线圈之前将其接合到定子叠层，并且每个相绕组的开始和结束终止于互连环。一旦定子被组装到轴上，连接器线可以通过轴被馈送并终止于互连环。互连环上的迹线将电线连接到正确的相位和公共端以控制电机运行。

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