公开(公告)号：US4980587A

公开(公告)日：1990-12-25

申请号：US361557

申请日：1989-06-05

申请人： Hiroyuki Yonei ,  Yoshito Oku ,  Susumu Terada

发明人： Hiroyuki Yonei ,  Yoshito Oku ,  Susumu Terada

IPC分类号： F16C19/54 ,  F16C25/08 ,  F16C35/06 ,  F16C35/12 ,  G11B19/20 ,  H02K5/173 ,  H02K15/14 ,  H02K29/00

CPC分类号： F16C19/54 ,  F16C25/08 ,  F16C35/061 ,  G11B19/2009 ,  H02K15/14 ,  H02K5/1735 ,  F16C2370/12

摘要： A spindle motor comprises a central shaft, a hub rotatable about the shaft and having a central bore which is open at one end, a first bearing fitted in the bore to surround the shaft, a second bearing disposed within the bore to surround the shaft and axially spaced from the first bearing to be positioned closer to the open end of the bore, and an auxiliary bush fitted in the bore to fittingly receive the second bearing. The bush has an inward flange axially interposed between the first and second bearings. The flange provides a first surface in face-to-face contact with an outer race of the first bearing. The flange further provides a second surface parallel to the first surface and in face-to-face contact with an outer race of the second bearing.

摘要翻译： 主轴电动机包括中心轴，可围绕轴旋转并且具有在一端敞开的中心孔的轮毂，装配在孔中以围绕轴的第一轴承，设置在孔内以包围轴的第二轴承， 与第一轴承轴向间隔开以更靠近孔的开口端，以及安装在孔中的辅助衬套以适合地接纳第二轴承。 衬套具有轴向插入在第一和第二轴承之间的向内凸缘。 凸缘提供与第一轴承的外圈面对面接触的第一表面。 凸缘还提供平行于第一表面并与第二轴承的外圈面对面接触的第二表面。

公开(公告)号：US07105963B2

公开(公告)日：2006-09-12

申请号：US11120200

申请日：2005-05-03

申请人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

发明人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

IPC分类号： H02K7/00 ,  H02K5/00

CPC分类号： H02K3/522 ,  H02K5/10 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49139 ,  Y10T29/49169 ,  Y10T29/49171 ,  Y10T29/49176

摘要： A first metal housing member 111 is provided with a bottom plate part 1111 and a resin coating layer 1112 formed on a lower surface of the bottom plate part 1111. To a board mounted part 1113 which is a metal surface exposed part exposed from the resin coating layer 1112 around a housing through hole 113, an FPC 114 is mounted via an adhesive layer 115. A lead wire 1413 of a stator windings 1414 that is inserted in a board aperture 1144 is connected to the FPC 114 by a sealing material 117 as a solder and the board aperture 1144 is covered with the sealing material 117 to seal the housing through hole 113. A motor unit 10 can securely seal the housing through hole 113 by enhancing adhesiveness between the FPC 114 and the first metal housing member 111.

公开(公告)号：US20060138886A1

公开(公告)日：2006-06-29

申请号：US11120200

申请日：2005-05-03

申请人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

发明人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

IPC分类号： H02G3/08 ,  C03C27/02 ,  H02K7/00

CPC分类号： H02K3/522 ,  H02K5/10 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49139 ,  Y10T29/49169 ,  Y10T29/49171 ,  Y10T29/49176

摘要： A first metal housing member 111 is provided with a bottom plate part 1111 and a resin coating layer 1112 formed on a lower surface of the bottom plate part 1111. To a board mounted part 1113 which is a metal surface exposed part exposed from the resin coating layer 1112 around a housing through hole 113, an FPC 114 is mounted via an adhesive layer 115. A lead wire 1413 of a stator windings 1414 that is inserted in a board aperture 1144 is connected to the FPC 114 by a sealing material 117 as a solder and the board aperture 1144 is covered with the sealing material 117 to seal the housing through hole 113. A motor unit 10 can securely seal the housing through hole 113 by enhancing adhesiveness between the FPC 114 and the first metal housing member 111.

公开(公告)号：US07254882B2

公开(公告)日：2007-08-14

申请号：US11498106

申请日：2006-08-03

申请人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

发明人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

IPC分类号： H02K15/00

CPC分类号： H02K3/522 ,  H02K5/10 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49139 ,  Y10T29/49169 ,  Y10T29/49171 ,  Y10T29/49176

摘要： The present invention provides a method for sealing a metal housing member. A housing through hole is formed in a housing member for a lead wire sealing device. The housing member is provided with a housing through hole formed on the metal housing member and penetrates from a closed space to an open space. A resin coating layer is formed to cover a lower surface of the housing member. A metal surface exposed part is formed on a part of the resin coating layer. The circuit board having a board aperture is mounted on the metal surface exposed part via an adhesive layer while overlapping with the board aperture on the housing through hole. The lead wire is inserted in the housing through hole and the board aperture that are overlapped with each other. The sealing material is provided on the circuit board to cover the board aperture.

摘要翻译： 本发明提供一种密封金属外壳构件的方法。 用于引线密封装置的壳体构件中形成壳体通孔。 壳体构件设置有形成在金属壳体构件上并从封闭空间穿透到开放空间的壳体通孔。 形成树脂涂层以覆盖壳体构件的下表面。 金属表面暴露部分形成在树脂涂层的一部分上。 具有板孔的电路板通过粘合剂层安装在金属表面暴露部分上，同时与壳体通孔上的板孔重叠。 引线插入壳体通孔和彼此重叠的板孔。 密封材料设置在电路板上以覆盖板孔。

公开(公告)号：US20060265871A1

公开(公告)日：2006-11-30

申请号：US11498106

申请日：2006-08-03

申请人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

发明人： Tokichi Ito ,  Nobuaki Watanabe ,  Yoshito Oku ,  Hiroyuki Yonei

IPC分类号： H01R43/00

CPC分类号： H02K3/522 ,  H02K5/10 ,  Y10T29/49009 ,  Y10T29/49025 ,  Y10T29/49139 ,  Y10T29/49169 ,  Y10T29/49171 ,  Y10T29/49176

摘要： A first metal housing member 111 is provided with a bottom plate part 1111 and a resin coating layer 1112 formed on a lower surface of the bottom plate part 1111. To a board mounted part 1113 which is a metal surface exposed part exposed from the resin coating layer 1112 around a housing through hole 113, an FPC 114 is mounted via an adhesive layer 115. A lead wire 1413 of a stator windings 1414 that is inserted in a board aperture 1144 is connected to the FPC 114 by a sealing material 117 as a solder and the board aperture 1144 is covered with the sealing material 117 to seal the housing through hole 113. A motor unit 10 can securely seal the housing through hole 113 by enhancing adhesiveness between the FPC 114 and the first metal housing member 111.

摘要翻译： 第一金属外壳构件111设置有底板部1111和形成在底板部1111的下表面上的树脂涂层1112。 对于作为从树脂涂层1112暴露在壳体通孔113周围的金属表面暴露部分的板安装部分1113，FPC 114通过粘合剂层115安装。 插入板孔1144中的定子绕组1414的引线1413通过作为焊料的密封材料117连接到FPC 114，并且板孔1144被密封材料117覆盖以密封壳体通孔113 。 电动机单元10可以通过增强FPC 114和第一金属壳体构件111之间的粘附性而可靠地密封壳体通孔113。

公开(公告)号：US20080056104A1

公开(公告)日：2008-03-06

申请号：US11926345

申请日：2007-10-29

申请人： Hideki Nishimura ,  Yoshito Oku

发明人： Hideki Nishimura ,  Yoshito Oku

IPC分类号： F16C32/06 ,  G11B19/20

CPC分类号： F16C33/107 ,  F16C17/045 ,  F16C17/107 ,  F16C33/745 ,  F16C41/008 ,  F16C2370/12 ,  H02K7/085

摘要： A fluid dynamic-pressure bearing includes a rotatable shaft, a hub, a fixed portion, and a lubricating liquid. The hub includes a hub thrust bearing surface extending from the shaft outwardly in a radial direction and an annular surface. The fixed portion includes a fixed-portion upper thrust bearing surface facing the hub thrust surface and a flange surface facing the annular surface. The hub thrust bearing surface, the fixed-portion upper thrust bearing surface, and the lubricating liquid arranged therebetween form together an upper thrust dynamic-pressure bearing. The annular surface and the flange surface define an annular gap therebetween. An axial dimension of the annular gap is larger than a total of an axial dimension of an upper thrust gap between the hub thrust bearing surface and the fixed-portion upper thrust bearing surface and an average depth of upper thrust dynamic-pressure generating grooves of the upper thrust dynamic-pressure bearing.

摘要翻译： 流体动压轴承包括可旋转轴，轮毂，固定部分和润滑液体。 轮毂包括从轴向径向延伸的轮毂止推轴承表面和环形表面。 固定部分包括面向轮毂止推表面的固定部分上止推轴承表面和面向环形表面的凸缘表面。 轮毂止推轴承表面，固定部分上推力轴承表面和布置在其间的润滑液形成上推力动压轴承。 环形表面和凸缘表面之间形成环形间隙。 环形间隙的轴向尺寸大于轮毂止推轴承表面和固定部分上推力轴承表面之间的上推力间隙的轴向尺寸的总和和上推力动压产生槽的平均深度 上推力动压轴承。

公开(公告)号：US06888278B2

公开(公告)日：2005-05-03

申请号：US10604975

申请日：2003-08-29

申请人： Hideki Nishimura ,  Yoshito Oku ,  Shinya Yano

发明人： Hideki Nishimura ,  Yoshito Oku ,  Shinya Yano

IPC分类号： G11B17/028 ,  G11B17/038 ,  G11B25/04 ,  F16C32/06 ,  H02K7/08

CPC分类号： G11B25/043 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B17/028 ,  G11B19/2009 ,  H02K5/1675

摘要： Low-profile spindle motor whose entire shaft length is utilized to configure, along an encompassing sleeve, a radial dynamic-pressure bearing section. One end of the shaft is unitary with the rotor, and a cover member closes the other end. Between the sleeve upper-end face and the rotor undersurface a thrust bearing section is configured. Micro-gaps are formed continuing between the sleeve upper-end face and the rotor undersurface; the sleeve inner-circumferential surface and the shaft outer-circumferential surface; and the cover member inner face and the shaft end face, where an axial support section is established. Oil continuously fills the micro-gaps, configuring a full-fill hydrodynamic bearing structure. Hydrodynamic pressure-generating grooves in the radial bearing section are configured either so that no axial flow, or so that a unidirectional flow that recirculates from one to the other axial end of the radial bearing section through a communicating pathway is induced in the oil.

摘要翻译： 低轴主轴电机，其整个轴长度用于沿径向动压轴承部分沿着包围的套筒配置。 轴的一端与转子一体，并且盖构件封闭另一端。 在套筒上端面和转子下表面之间配置有推力轴承部。 在套筒上端面和转子下表面之间形成微缝隙; 套筒内周面和轴外周面; 以及盖构件内表面和轴端面，其中建立了轴向支撑部分。 油连续填充微间隙，构成全填充流体动力轴承结构。 径向轴承部分中的流体动力学压力产生槽被构造成使得不会在油中引起轴向流动，或者使得通过连通通道从径向支承部分的一个轴向端部向另一个轴向端部再循环的单向流动。

公开(公告)号：US06914358B2

公开(公告)日：2005-07-05

申请号：US10250083

申请日：2003-06-03

申请人： Shinya Tokunaga ,  Kaoru Uenosono ,  Hideki Nishimura ,  Yoshito Oku

发明人： Shinya Tokunaga ,  Kaoru Uenosono ,  Hideki Nishimura ,  Yoshito Oku

IPC分类号： F16C17/10 ,  F16C17/02 ,  F16C17/04 ,  F16C33/10 ,  G11B19/20 ,  H02K5/16 ,  H02K7/08 ,  H02K21/22 ,  G11B17/02 ,  H02K5/00

CPC分类号： F16C17/107 ,  F16C33/107 ,  F16C33/1085 ,  F16C2370/12 ,  H02K5/1675

摘要： In a spindle motor utilizing dynamic-pressure bearings having a full-fill structure, a bearing configuration that balances and sustains at or above atmospheric pressure the internal pressure of the bearing oil. Thrust and radial bearing sections are configured within oil-filled bearing clearances in between the rotor, the shaft, and a shaft-encompassing hollow bearing member. A communicating passage one end of which opens on, radially inwardly along, the thrust bearing section is formed in the bearing member. Either axial ends of the bearing clearance in between the bearing member and shaft communicate through the passage. The communicating passage enables the oil to redistribute itself within the bearing clearances. Pressure difference between the axial upper and lower ends of the oil retained in between the bearing member and the shaft is compensated through the communicating passage, preventing incidents of negative pressure within the oil and of over-lift on the rotor.

摘要翻译： 在使用具有全填充结构的动压轴承的主轴电机中，轴承构造在大气压力或大于等于或高于轴承油的内部压力的情况下平衡和维持。 推力轴承和径向轴承部分配置在转子，轴和包含轴的中空轴承部件之间的充油轴承间隙内。 在轴承部件上形成有连通通道，其一端在推力轴承部分沿径向向内开口。 轴承构件和轴之间的轴承间隙的轴向端部通过通道连通。 连通通道使得油在轴承间隙内重新分布。 通过连通通道补偿保持在轴承构件和轴之间的油的轴向上端和下端之间的压力差，防止油内的负压和转子上的过度提升。

公开(公告)号：US20050099722A1

公开(公告)日：2005-05-12

申请号：US10605941

申请日：2003-11-07

申请人： Hideki Nishimura ,  Yoshito Oku ,  Yasuhiro Mori

发明人： Hideki Nishimura ,  Yoshito Oku ,  Yasuhiro Mori

IPC分类号： G11B17/02 ,  G11B17/022 ,  G11B25/04 ,  G11B33/12 ,  H02K7/08

CPC分类号： G11B33/121 ,  F16C17/045 ,  F16C17/107 ,  F16C33/107 ,  F16C33/1085 ,  F16C2370/12 ,  G11B17/022 ,  G11B25/043

摘要： In a spindle motor utilizing dynamic-pressure bearings having a full-fill structure, a bearing configuration that balances and sustains at or above atmospheric pressure the internal pressure of the bearing oil. Thrust and radial bearing sections are configured within oil-filled bearing clearances in between the rotor, the shaft, and a shaft-encompassing hollow bearing member. A communicating passage one end of which opens on, radially inwardly along, the thrust bearing section is formed in the bearing member. Either axial ends of the bearing clearance in between the bearing member and shaft communicate through the passage. The communicating passage enables the oil to redistribute itself within the bearing clearances. Pressure difference between the axial upper and lower ends of the oil retained in between the bearing member and the shaft is compensated through the communicating passage, preventing incidents of negative pressure within the oil and of over-lift on the rotor. And an annular protruding portion is formed on at least one of the end face of the bearing member and the flat face of the rotor at radially inward portion of the thrust bearing section.

摘要翻译： 在使用具有全填充结构的动压轴承的主轴电机中，轴承构造在大气压力或大于等于或高于轴承油的内部压力的情况下平衡和维持。 推力轴承和径向轴承部分配置在转子，轴和包含轴的中空轴承部件之间的充油轴承间隙内。 在轴承部件上形成有连通通道，其一端在推力轴承部分沿径向向内开口。 轴承构件和轴之间的轴承间隙的轴向端部通过通道连通。 连通通道使得油在轴承间隙内重新分布。 通过连通通道补偿保持在轴承构件和轴之间的油的轴向上端和下端之间的压力差，防止油内的负压和转子上的过度提升。 并且在所述推力轴承部的径向内侧部分的轴承部件的端面和转子的平面中的至少一个上形成有环状的突出部。

公开(公告)号：US5457588A

公开(公告)日：1995-10-10

申请号：US122194

申请日：1993-09-15

申请人： Shinobu Hattori ,  Yasuhiro Higuchi ,  Yoshito Oku

发明人： Shinobu Hattori ,  Yasuhiro Higuchi ,  Yoshito Oku

IPC分类号： G11B19/20 ,  G11B25/04 ,  H02K5/124 ,  H02K5/16 ,  G11B17/02 ,  H02K7/08

CPC分类号： H02K5/1677 ,  F16C33/74 ,  G11B19/2009 ,  G11B25/043 ,  H02K5/124

摘要： A spindle motor comprises a rotary sleeve; a rotor hub which is integrally rotated with the rotary sleeve; a stationary sleeve; and a stationary support extending upwardly from the stationary part, the rotary sleeve being fitted onto the outer peripheral surface of the stationary support, and radial and thrust hydrodynamic bearings being provided on the relative sliding surfaces of both rotary sleeve and stationary support. A pair of annular grooves which partially overlap each other in the axial direction are peripherally provided on the rotary sleeve and stationary support, thereby providing a labyrinth chamber to suppress the outflow of the lubricant.

摘要翻译： 主轴电机包括旋转套筒; 与旋转套筒整体旋转的转子轮毂; 固定套管 以及从静止部分向上延伸的固定支撑件，旋转套筒装配到固定支撑件的外周表面上，并且径向和推力流体动力轴承设置在旋转套筒和固定支撑件的相对滑动表面上。 在轴向上部分地重叠的一对环形槽周向设置在旋转套筒和固定支撑件上，由此提供了一个迷宫室，以抑制润滑剂的流出。