公开(公告)号：US07576947B2

公开(公告)日：2009-08-18

申请号：US11666741

申请日：2005-11-30

申请人： Fumiyasu Higuchi ,  Naoyuki Kondo ,  Toshimitsu Horiuchi

发明人： Fumiyasu Higuchi ,  Naoyuki Kondo ,  Toshimitsu Horiuchi

IPC分类号： H02K7/08

CPC分类号： G11B19/2018 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/163 ,  H02K7/085 ,  H02K7/09

摘要： A fluid dynamic pressure bearing device includes a first capillary seal (50) formed between an outer circumferential surface of a bearing member 20 and an internal circumferential surface of a seal member (30). A second capillary seal portion (60) is formed between an outer circumferential surface of a shaft member (10) and a protrusion hole (31) of the seal member (30). A ventilation hole (32a) is formed in a substantially intermediate portion of a side wall of the seal member. A lubricant holding gap (73) is formed between an inner surface of a top wall (31) of the seal member (30) and the upper end surface of the bearing member (20). Leakage of lubricant (80) is suppressed by action of the capillary seal portions (50, 60), and the liquid surface is positioned in the first capillary seal portion (50) above the ventilation hole (32a), whereby extra lubricant (80) is filled in the first capillary seal portion (50) and the lubricant holding gap (73).

摘要翻译： 流体动压轴承装置包括形成在轴承构件20的外周面与密封构件（30）的内​​周面之间的第一毛细管密封件（50）。 第二毛细管密封部（60）形成在轴构件（10）的外周面与密封构件（30）的突出孔（31）之间。 在密封构件的侧壁的大致中间部分形成通气孔（32a）。 在密封构件（30）的顶壁（31）的内表面和轴承构件（20）的上端面之间形成有润滑剂保持间隙（73）。 通过毛细管密封部分（50,60）的作用抑制润滑剂（80）的泄漏，并且液面位于通气孔（32a）上方的第一毛细管密封部分（50）中，由此额外的润滑剂（80） 填充在第一毛细管密封部（50）和润滑剂保持间隙（73）中。

公开(公告)号：US20080130168A1

公开(公告)日：2008-06-05

申请号：US11666741

申请日：2005-11-30

申请人： Fumiyasu Higuchi ,  Naoyuki Kondo ,  Toshimitsu Horiuchi

发明人： Fumiyasu Higuchi ,  Naoyuki Kondo ,  Toshimitsu Horiuchi

IPC分类号： F16C32/06 ,  H02K7/09 ,  G11B17/028

CPC分类号： G11B19/2018 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/163 ,  H02K7/085 ,  H02K7/09

摘要： A fluid dynamic pressure bearing device includes a first capillary seal (50) formed between an outer circumferential surface of a bearing member 20 and an internal circumferential surface of a seal member (30). A second capillary seal portion (60) is formed between an outer circumferential surface of a shaft member (10) and a protrusion hole (31) of the seal member (30). A ventilation hole (32a) is formed in a substantially intermediate portion of a side wall of the seal member. A lubricant holding gap (73) is formed between an inner surface of a top wall (31) of the seal member (30) and the upper end surface of the bearing member (20). Leakage of lubricant (80) is suppressed by action of the capillary seal portions (50, 60), and the liquid surface is positioned in the first capillary seal portion (50) above the ventilation hole (32a), whereby extra lubricant (80) is filled in the first capillary seal portion (50) and the lubricant holding gap (73).

摘要翻译： 流体动压轴承装置包括形成在轴承构件20的外周面与密封构件（30）的内​​周面之间的第一毛细管密封件（50）。 第二毛细管密封部（60）形成在轴构件（10）的外周面与密封构件（30）的突出孔（31）之间。 通气孔（32a）形成在密封构件的侧壁的大致中间部分。 在密封构件（30）的顶壁（31）的内表面和轴承构件（20）的上端面之间形成有润滑剂保持间隙（73）。 通过毛细管密封部分（50,60）的作用来抑制润滑剂（80）的泄漏，并且液体表面位于通气孔（32a）上方的第一毛细管密封部分（50）中，由此额外的润滑剂（80 ）填充在第一毛细管密封部（50）和润滑剂保持间隙（73）中。

公开(公告)号：US06998745B2

公开(公告)日：2006-02-14

申请号：US10385266

申请日：2003-03-10

申请人： Toshimitsu Horiuchi ,  Andreas Kull

发明人： Toshimitsu Horiuchi ,  Andreas Kull

IPC分类号： H02K7/08

CPC分类号： F16C33/107 ,  F16C17/107 ,  F16C2370/12 ,  G11B19/2009 ,  H02K5/163 ,  H02K7/086

摘要： An apparatus for and a method of construction of a spindle motor having a bearing unit, a rotary shaft, a rotary hub member and an electro-magnetic motor is presented. The rotary shaft has a flange attached at a mid-section in an axial direction, between large and small diameter sections of the rotary shaft. Grooves between the bearing unit, rotary shaft and flange create radial dynamic pressure generating areas, each with as long as possible a span, and thrust dynamic pressure generating areas to both sides of the flange.

摘要翻译： 提出了一种具有轴承单元，旋转轴，旋转轮毂构件和电磁马达的主轴电机的构造装置和方法。 旋转轴在旋转轴的大直径部分和小直径部分之间具有在轴向方向上的中间部分附接的凸缘。 轴承单元，旋转轴和法兰之间的凹槽产生径向动压产生区域，每个区域尽可能长的跨度，并且推力动压力产生区域到法兰的两侧。

公开(公告)号：US20090102300A1

公开(公告)日：2009-04-23

申请号：US11975433

申请日：2007-10-19

申请人： Thilo Rehm ,  Olaf Winterhalter ,  Hiroshi Yoshikawa ,  Toshimitsu Horiuchi

发明人： Thilo Rehm ,  Olaf Winterhalter ,  Hiroshi Yoshikawa ,  Toshimitsu Horiuchi

IPC分类号： H02K7/09 ,  G11B17/02 ,  H02K7/08

CPC分类号： H02K7/086 ,  F16C17/107 ,  F16C33/107 ,  F16C33/74 ,  F16C2370/12

摘要： The invention relates to a spindle motor for a hard disk drive comprising a baseplate (1), a shaft (2) fixedly connected to the baseplate (1), a thrust plate (3) fixedly connected to the free end of the shaft, a bearing bush (4) disposed about the shaft (2) and the thrust plate (3) and rotatably supported with respect to these components, a bearing gap (5) that is provided between the adjoining surfaces of the shaft (2), the bearing bush (4) and the thrust plate (3), at least one radial bearing (6; 7) formed by the adjoining surfaces of the shaft (2) and the bearing bush (4), an axial bearing (8) formed by the adjoining surfaces of the thrust plate (3) and the bearing bush (4), an annular rotor component (9) connected to the bearing bush (4), and an electromagnetic drive system having a rotor magnet (11) fixed to a rotating component and a stator arrangement (12) disposed on the baseplate (1) opposite the rotor magnet (11).

摘要翻译： 本发明涉及一种用于硬盘驱动器的主轴电动机，其包括基板（1），固定地连接到基板（1）的轴（2），固定地连接到轴的自由端的止推板（3） 设置在轴（2）和止推板（3）周围并相对于这些部件可旋转地支撑的轴承衬套（4），设置在轴（2）的相邻表面之间的轴承间隙（5） 衬套（4）和止推板（3），由轴（2）和轴承衬套（4）的相邻表面形成的至少一个径向轴承（6; 7），由轴 推力板（3）和轴承衬套（4）的邻接表面，连接到轴承衬套（4）的环形转子部件（9）和具有固定到旋转部件上的转子磁体（11）的电磁驱动系统 以及设置在与转子磁体（11）相对的基板（1）上的定子装置（12）。