公开(公告)号：US20050238268A1

公开(公告)日：2005-10-27

申请号：US10832706

申请日：2004-04-27

Applicant: Gary Borcherding ,  Barry Newberg ,  L. Dohogne

Inventor： Gary Borcherding ,  Barry Newberg ,  L. Dohogne

IPC: F16C3/02 ,  F16C23/04 ,  F16C33/10 ,  F16C33/12 ,  H02K5/167 ,  F16C19/10 ,  F16C33/02 ,  H02K5/16

CPC classification number: H02K5/1672 ,  F16C3/02 ,  F16C23/04 ,  F16C33/103 ,  F16C33/12

Abstract: A motor and method of manufacturing a motor having a steel shaft with a carbon content greater than or equal to about 0.4 percent by weight and a powder metal bearing coupled about the shaft. The invention also includes a method of using a motor having a non-hardened steel shaft with a carbon content greater than or equal to about 0.4 percent by weight and a powder metal bearing coupled about the non-secondary hardened shaft. The method includes applying a radial load to the bearing greater than about 25,000 pound-feet per square-inch minute.

Abstract translation: 一种制造具有碳含量大于或等于约0.4重量％的钢轴的电动机的电动机和方法，以及围绕轴联接的粉末金属轴承。 本发明还包括使用具有大于或等于约0.4重量％的碳含量的非硬化钢轴的电动机的方法和围绕非二次硬化轴连接的粉末金属轴承。 该方法包括向轴承施加大于约25,000磅/平方英寸分钟的径向载荷。

公开(公告)号：US06951424B2

公开(公告)日：2005-10-04

申请号：US10426898

申请日：2003-04-29

Applicant: Hitoshi Mutai ,  Kenichi Hoshina

Inventor： Hitoshi Mutai ,  Kenichi Hoshina

IPC: H02K5/173 ,  F16C17/08 ,  H02K5/167 ,  H02K7/06 ,  H02K37/14 ,  F16C19/10

CPC classification number: F16C17/08 ,  F16C27/08 ,  F16C2380/27 ,  H02K7/06 ,  H02K7/081 ,  Y10S384/902

Abstract: A motor includes a rotor section with a rotor shaft having an end section, and a stator section including a yoke section disposed opposite the rotor section. The motor is also equipped with a bearing assembly having a bearing member that includes a main bearing section with a recess section and a ball bearing received in the recess section wherein the ball bearing rotatably support the end section of the rotor shaft, and a bearing holder defining a center through hole that slidably holds the main bearing section of the bearing member in the axial direction, wherein the bearing holder is formed from a sintered compact member.

Abstract translation: 电动机包括转子部分，转子轴具有端部部分，以及定子部分，其包括与转子部分相对设置的轭部。 电动机还配备有具有轴承部件的轴承组件，轴承部件包括具有凹部的主轴承部和容纳在凹部中的滚珠轴承，其中滚珠轴承可旋转地支撑转子轴的端部，并且轴承保持架 限定了沿轴向方向可滑动地保持轴承构件的主轴承部分的中心通孔，其中轴承座由烧结压块构成。

公开(公告)号：US20050210490A1

公开(公告)日：2005-09-22

申请号：US10907042

申请日：2005-03-17

Applicant: Yasuo Shimizu ,  Koichi Yamamoto ,  Takanori Nishioka

Inventor： Yasuo Shimizu ,  Koichi Yamamoto ,  Takanori Nishioka

IPC: F16C17/02 ,  F16C33/10 ,  F16C37/00 ,  G11B5/012 ,  G11B17/00 ,  G11B17/028 ,  G11B17/03 ,  G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  H02K5/02 ,  H02K5/167 ,  H02K21/22 ,  H02K29/00

CPC classification number: G11B19/2009

Abstract: A motor and a disk drive device having the disk drive motor are disclosed. A bearing bush is arranged on a motor mounting plate constituting a base for mounting on the disk drive device to read/write data from/into a recording disk. A shaft is supported rotatably through a bearing inside the bearing bush. A rotor on which an annular disk is placed is fixed at the upper end of the shaft. A rotor magnet is mounted on the inner peripheral wall surface of the rotor. A stator is arranged in opposed relation with the rotor magnet outside the bearing bush. The bearing bush is made of an aluminum alloy, the motor mounting plate is made of an aluminum alloy or a silicon steel plate, and the circuit board is formed of FPC. As a result, the heat generated in the motor can be efficiently radiated. Thus, the disk drive motor and the disk drive device having the motor are reduced in thickness and weight.

Abstract translation: 公开了具有盘驱动电动机的电动机和磁盘驱动装置。 轴承衬套布置在构成用于安装在盘驱动装置上的基座的马达安装板上以从/向记录盘读/写数据。 轴可旋转地支撑在轴承衬套内的轴承。 其上放置有环形盘的转子固定在轴的上端。 转子磁体安装在转子的内周壁表面上。 定子以与转子磁体相对的方式布置在轴承衬套的外部。 轴承衬套由铝合金制成，电机安装板由铝合金或硅钢板制成，电路板由FPC形成。 结果，可以有效地照射电动机中产生的热量。 因此，具有电动机的盘驱动电动机和盘驱动装置的厚度和重量减小。

公开(公告)号：US06943471B2

公开(公告)日：2005-09-13

申请号：US10873334

申请日：2004-06-22

Applicant: Shokichi Toyokawa ,  Toshifumi Tsutsumi ,  Katsuaki Abe ,  Yukio Oishi ,  Hitoshi Shirakura

Inventor： Shokichi Toyokawa ,  Toshifumi Tsutsumi ,  Katsuaki Abe ,  Yukio Oishi ,  Hitoshi Shirakura

IPC: F16C17/02 ,  F16C33/10 ,  H02K3/44 ,  H02K5/08 ,  H02K5/167 ,  H02K7/14 ,  H02K29/00 ,  H02K5/16

CPC classification number: H02K5/1675

Abstract: This motor comprises a core, a drive coil wound on the core, a housing, and a stator having an insulator for insulating the drive coil formed one-piece with the housing. Further, the motor comprises a stator casing for encasing the stator, and a rotor disposed outside the stator. Inside the housing is disposed a bearing for supporting the rotary shaft of the rotor, and an oil retainer disposed so as to partially come in contact with the bearing is stored in a storing section provided in either one of the housing and the stator casing.

Abstract translation: 该电动机包括芯，缠绕在芯上的驱动线圈，壳体和具有用于使与壳体一体形成的驱动线圈绝缘的绝缘体的定子。 此外，电动机包括用于封装定子的定子壳体和设置在定子外部的转子。 在壳体内设置有用于支撑转子的旋转轴的轴承，并且设置成与轴承部分接触的油保持器被存储在设置在壳体和定子壳体中的任一个中的存储部分中。

公开(公告)号：US20050147336A1

公开(公告)日：2005-07-07

申请号：US10506561

申请日：2004-01-09

Applicant: Yuji Shishido ,  Kenichiro Yazawa ,  Kiyoyuki Takada ,  Toshio Hashimoto

Inventor： Yuji Shishido ,  Kenichiro Yazawa ,  Kiyoyuki Takada ,  Toshio Hashimoto

IPC: F16C17/02 ,  F04D29/04 ,  F04D29/051 ,  F04D29/057 ,  F04D29/06 ,  F16C17/04 ,  F16C17/10 ,  F16C33/10 ,  F16C35/02 ,  H02K5/15 ,  H02K5/167 ,  H02K7/08 ,  F16C32/06

CPC classification number: F04D29/0513 ,  F04D29/057 ,  F04D29/063 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  H02K7/085

Abstract: A reliable bearing unit, in which lubricant does not leak and the problem of shaft lifting at the time of the rotation of a rotor due to the imbalance of a pair of dynamic pressure generating grooves can be surely and inexpensively solved, and a rotary drive apparatus including the bearing unit are provided. Accordingly, a shaft 100 which has an exposed end 160, an inner end 162 of a small external diameter provided opposite to the exposed end 160, and a stepped middle portion 170 formed between the exposed end 160 and the inner end 162; a thrust bearing 130 which supports the inner end 162 of the shaft 100 in a rotatable manner in the thrust direction; and lubricant 150 in a retention member 120 which is filled between the shaft 100, a radial bearing 110 and the thrust bearing 130 are provided; and the length m of the inner end 162 of the shaft 100 in the direction of the shaft is shorter than the length n in the direction of the shaft of the part between the outer surface of the retention member 120 and the stepped middle portion 170 of the shaft 100.

Abstract translation: 可以可靠且低成本地解决润滑剂不泄漏的可靠的轴承单元和由于一对动压产生槽的不平衡而使转子旋转时的轴提升的问题，并且旋转驱动装置 包括轴承单元。 因此，具有暴露端160的轴100，与暴露端160相对设置的小外径的内端162和形成在暴露端160和内端162之间的台阶状中间部170; 推力轴承130，其在推力方向上以可旋转的方式支撑轴100的内端162; 并且设置在填充在轴1​​00，径向轴承110和止推轴承130之间的保持构件120中的润滑剂150; 并且轴100的内端162在轴的方向上的长度m比保持构件120的外表面和台阶中间部170之间的部分的轴的方向上的长度n短 轴100。

公开(公告)号：US20050140225A1

公开(公告)日：2005-06-30

申请号：US10991422

申请日：2004-11-19

Applicant: Hiroyasu Fujinaka ,  Kumio Masuda

Inventor： Hiroyasu Fujinaka ,  Kumio Masuda

IPC: H02K5/167 ,  F16C17/08 ,  F16C39/06 ,  G11B19/20 ,  H02K7/08 ,  H02K7/09 ,  H02K5/24 ,  H02K5/16

CPC classification number: G11B19/2009 ,  F16C17/08 ,  F16C39/063 ,  F16C2370/12 ,  H02K7/085 ,  H02K7/09

Abstract: The present invention provides a low vibration brushless motor for reducing the vibration of the motor in an axial direction. In the brushless motor, a bearing is provided in a bearing boss, a shaft is held by the bearing, an end face of the shaft is contacting a thrust receiving member, and the shaft is rotatably axially supported by the bearing. The brushless motor includes a permanent magnet for attracting the end face of the shaft in the thrust direction with the thrust receiving member therebetween, and a bottom receiving part for supporting the permanent magnet, wherein the bearing boss, bearing, shaft, and bottom receiving part are made of a magnetic material, and a closed magnetic path is formed so that a magnetic flux passes through the permanent magnet, bottom receiving part, bearing boss, bearing, and shaft.

Abstract translation: 本发明提供一种用于减小电动机在轴向上的振动的低振动无刷电动机。 在无刷电动机中，轴承设置在轴承凸台中，轴由轴承保持，轴的端面接触推力接收构件，轴由轴承可旋转地轴向支撑。 无刷电动机包括永久磁铁，用于在推力方向上推动轴的端面，其间具有推力接收构件，以及用于支撑永磁体的底部容纳部，其中，轴承凸起，轴承，轴和底部容纳部 由磁性材料制成，并且形成闭合磁路，使得磁通量通过永磁体，底部接收部分，轴承凸起，轴承和轴。

公开(公告)号：US06897585B2

公开(公告)日：2005-05-24

申请号：US10459304

申请日：2003-06-11

Applicant: Ho Lee ,  Sang-Hwan Park

Inventor： Ho Lee ,  Sang-Hwan Park

IPC: B41J2/44 ,  F04D29/04 ,  F04D29/057 ,  F04D29/06 ,  F16C17/02 ,  F16C17/10 ,  F16C17/26 ,  F16C33/10 ,  H02K5/16 ,  H02K5/167 ,  H02K7/08 ,  H02K21/22

CPC classification number: F04D29/057 ,  F04D29/063 ,  F16C17/107 ,  F16C17/26 ,  F16C33/107 ,  H02K5/1675 ,  H02K5/1677 ,  H02K7/085

Abstract: Disclosed herein is a kinetic pressure bearing motor, which is provided with an auxiliary dynamic pressure generating means, thus allowing a motor shaft to be stably rotated at a high speed, and considerably reducing vibration, therefore enhancing the performance of the motor. The kinetic pressure bearing motor includes a support unit which is provided at an outer surface of a motor shaft, and a shaft holder which is fitted over an upper portion of the motor shaft. Further, grooves for generating dynamic pressure are formed on an outer surface of the support unit. An extension is provided at the shaft holder to support the support unit in such a way as to be in contact with the outer surface of the support unit having the grooves.

Abstract translation: 这里公开了一种动压轴承电动机，其具有辅助动压产生装置，从而允许电动机轴以高速稳定地旋转，并且显着减少振动，因此提高了电动机的性能。 动压轴承电动机包括设置在电动机轴的外表面的支撑单元和安装在电动机轴的上部上的轴保持器。 此外，在支撑单元的外表面上形成用于产生动压的槽。 延伸部设置在轴保持器处以支撑单元以与具有凹槽的支撑单元的外表面接触的方式。

公开(公告)号：US20050100255A1

公开(公告)日：2005-05-12

申请号：US10979064

申请日：2004-11-02

Applicant: Martin Hafen ,  Joerg Hoffmann ,  Dieter Braun

Inventor： Martin Hafen ,  Joerg Hoffmann ,  Dieter Braun

IPC: F16C17/10 ,  F16C33/10 ,  F16C33/74 ,  G11B19/20 ,  H02K5/167 ,  H02K7/08 ,  F16C32/06

CPC classification number: F16C33/107 ,  F16C17/107 ,  F16C33/103 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2018

Abstract: The invention relates to a hydrodynamic bearing having a shaft, a bearing sleeve that encloses the shaft with a short radial spacing forming a concentric bearing gap, and an equalizing volume that is disposed between an outer circumference of the bearing sleeve and a covering cap at least partly overlapping the bearing sleeve and firmly fixed with respect to the bearing sleeve and connected to the bearing gap via at least one connecting channel or gap, a bearing fluid filling the bearing gap and the connecting channel/gap fully and the equalizing volume at least partially and the bearing fluid forming a continuous fluid film between the bearing gap and the equalizing volume.

Abstract translation: 本发明涉及一种流体动力轴承，其具有轴，轴承套筒，其以形成同心轴承间隙的短径向间隔包围轴，以及平衡体积，至少设置在轴承套筒的外周和覆盖帽之间 部分地与轴承套筒重叠并且相对于轴承套筒牢固地固定并且经由至少一个连接通道或间隙连接到轴承间隙，将轴承间隙和连接通道/间隙充分填充的轴承流体和均衡体积至少部分地 并且轴承流体在轴承间隙和均衡体积之间形成连续流体膜。

公开(公告)号：US20050088050A1

公开(公告)日：2005-04-28

申请号：US10965886

申请日：2004-10-18

Applicant: Akira Nishio

Inventor： Akira Nishio

IPC: F16C33/10 ,  G11B19/20 ,  H02K5/167 ,  H02K7/08 ,  H02K5/16

CPC classification number: F16C33/103 ,  F16C2370/12 ,  G11B19/2018 ,  H02K5/1675 ,  H02K7/085 ,  H02K7/088

Abstract: A motor (100) having a dynamic pressure fluid bearing is composed of a hub (2), a rotor (4) provided with a shaft (7) of which one end portion is securely fastened by the hub (2) and another end portion is formed with a flange (8), and a stator (3) composed of a sleeve section (9) for axially sustaining the shaft (7) so as to be rotatable freely and a thrust plate (10) secured on the sleeve section (9) so as to confront with the flange (8), wherein the dynamic pressure fluid bearing is composed of a thrust dynamic pressure fluid bearing constituted by the flange (8) and the thrust plate (10), and wherein the shaft (7) is provided with a through hole (17) bored through the shaft (7) from the one end surface to the other end surface, and wherein the through hole (17) is formed in a shape having an opening to the other end surface of the shaft (7) by way of a funnel shaped section (17c) of which diameter gradually increases toward the other end surface of the shaft (7).

公开(公告)号：US20050074343A1

公开(公告)日：2005-04-07

申请号：US10956368

申请日：2004-10-04

Applicant: Hiroaki Naito

Inventor： Hiroaki Naito

IPC: H02K29/00 ,  F04D5/00 ,  H02K5/12 ,  H02K5/15 ,  H02K5/167 ,  H02K5/24 ,  H02K7/08 ,  H02K7/14 ,  H02K21/12 ,  H02K21/16 ,  F04B17/00 ,  F04B35/00 ,  F04B35/04

CPC classification number: H02K5/1672 ,  F04D5/002 ,  H02K5/12 ,  H02K5/15 ,  H02K7/083 ,  H02K21/16

Abstract: A motor, possibly for a pump, has a housing, a first member disposed within the housing and mounted on an inner wall of the housing, and a second member rotatably disposed within the housing and having a rotary shaft. A thrust bearing is mounted within the housing in order to support a first end of the rotary shaft in an axial direction of the rotary shaft. A core and coils wound around the core are provided on one of the first and second members. A set of magnets is provided on the other of the first and second members. The core and the set of magnets are positioned such that a magnetic force is produced in an area where a magnetic flux is generated between the core and the set of magnets. The magnetic force causes the second member to move toward the thrust bearing.

Abstract translation: 可能用于泵的马达具有壳体，设置在壳体内并安装在壳体的内壁上的第一构件和可旋转地设置在壳体内并具有旋转轴的第二构件。 止推轴承安装在壳体内，以便沿旋转轴的轴向方向支撑旋转轴的第一端。 围绕芯部缠绕的芯和线圈设置在第一和第二构件中的一个上。 一组磁体设置在第一和第二构件的另一个上。 芯和磁体组被定位成使得在磁芯和磁体组之间产生磁通的区域产生磁力。 磁力使第二构件向推力轴承移动。