公开(公告)号：US08284515B2

公开(公告)日：2012-10-09

申请号：US13197820

申请日：2011-08-04

申请人： Yoichi Sekii ,  Hironao Sasaki ,  Takuro Iguchi ,  Hironori Ando ,  Toshihiro Akiyama ,  Takunori Shinao ,  Yuichi Shigematsu ,  Yasutaka Ino ,  Tatsuyoshi Nakatani

发明人： Yoichi Sekii ,  Hironao Sasaki ,  Takuro Iguchi ,  Hironori Ando ,  Toshihiro Akiyama ,  Takunori Shinao ,  Yuichi Shigematsu ,  Yasutaka Ino ,  Tatsuyoshi Nakatani

IPC分类号： G11B17/08

CPC分类号： G11B19/2036 ,  F16C17/105 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B17/0287

摘要： A fluid dynamic bearing mechanism includes a stationary shaft, a sleeve portion arranged to rotate with respect to the shaft, and a thrust portion including an upper end surface arranged oppose to a lower end surface of the sleeve portion. An inside surface of the thrust portion includes an inside surface contact portion arranged in contact with an outside surface of the shaft, and an inside surface lower non-contact portion spaced away from the outside surface of the shaft, and arranged to extend downward from a lower end of the inside surface contact portion. An outside surface of the thrust portion includes an outside surface inclined portion arranged in contact with an interface of a lubricating oil. The lower end of the inside surface contact portion is arranged at a level axially higher than that of a lower end of the outside surface inclined portion.

摘要翻译： 流体动力轴承机构包括固定轴，布置成相对于轴旋转的套筒部分和包括与套筒部分的下端表面相对布置的上端表面的推力部分。 推力部的内表面包括与轴的外表面接触的内表面接触部分和与轴的外表面间隔开的内表面下非接触部分，并且布置成从轴向向下延伸 内表面接触部分的下端。 推力部的外表面包括与润滑油的界面接触配置的外表面倾斜部。 内表面接触部分的下端设置在比外表面倾斜部分的下端更高的轴向上。

公开(公告)号：US20100177627A1

公开(公告)日：2010-07-15

申请号：US12732481

申请日：2010-03-26

申请人： Yasutaka INO ,  Naoyuki TAKADA

发明人： Yasutaka INO ,  Naoyuki TAKADA

IPC分类号： G11B23/00 ,  H02K11/00 ,  H02K5/22

CPC分类号： G11B33/08 ,  G11B25/043 ,  H02K1/187 ,  H02K5/24

摘要： In the base bracket of the motor, the bottom-inner surface of the base bracket includes a first bottom-inner area arranged over a circuit board attaching portion of a bottom-outer surface to which the circuit board is attached, and a second bottom-inner area arranged other than the first bottom-inner area in a level axially lower than the first bottom-inner area. The second bottom-inner area defines a base of the concave portion arranged in the bottom-inner surface of the base bracket. A characteristic frequency of the disk storage device using the motor with the base bracket is preferably adjustable by changing the depth or width of the concave portion while the strength of the base bracket is preferably maintained.

摘要翻译： 在电动机的基座支架中，基座支架的底面包括布置在电路板附接的底外表面的电路板安装部分上的第一底部 - 内部区域， 内部区域布置在第一底部 - 内部区域之外，其轴向低于第一底部 - 内部区域。 第二底部内部区域限定设置在基座支架的底部 - 内表面中的凹部的基部。 使用具有基座托架的马达的盘存储装置的特征频率优选地可以通过改变凹部的深度或宽度来进行调节，同时优选地保持底座的强度。

公开(公告)号：US20110299193A1

公开(公告)日：2011-12-08

申请号：US13197820

申请日：2011-08-04

申请人： Yoichi SEKII ,  Hironao SASAKI ,  Takuro IGUCHI ,  Hironori ANDO ,  Toshihiro AKIYAMA ,  Takunori SHINAO ,  Yuichi SHIGEMATSU ,  Yasutaka INO ,  Tatsuyoshi NAKATANI

发明人： Yoichi SEKII ,  Hironao SASAKI ,  Takuro IGUCHI ,  Hironori ANDO ,  Toshihiro AKIYAMA ,  Takunori SHINAO ,  Yuichi SHIGEMATSU ,  Yasutaka INO ,  Tatsuyoshi NAKATANI

IPC分类号： F16C32/06 ,  H02K7/08 ,  G11B17/02

CPC分类号： G11B19/2036 ,  F16C17/105 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B17/0287

摘要： A fluid dynamic bearing mechanism includes a stationary shaft, a sleeve portion arranged to rotate with respect to the shaft, and a thrust portion including an upper end surface arranged oppose to a lower end surface of the sleeve portion. An inside surface of the thrust portion includes an inside surface contact portion arranged in contact with an outside surface of the shaft, and an inside surface lower non-contact portion spaced away from the outside surface of the shaft, and arranged to extend downward from a lower end of the inside surface contact portion. An outside surface of the thrust portion includes an outside surface inclined portion arranged in contact with an interface of a lubricating oil. The lower end of the inside surface contact portion is arranged at a level axially higher than that of a lower end of the outside surface inclined portion.

摘要翻译： 流体动力轴承机构包括固定轴，布置成相对于轴旋转的套筒部分和包括与套筒部分的下端表面相对布置的上端表面的推力部分。 推力部的内表面包括与轴的外表面接触的内表面接触部和与轴的外表面间隔开的内表面下非接触部，并且从内侧面向下延伸 内表面接触部分的下端。 推力部的外表面包括与润滑油的界面接触配置的外表面倾斜部。 内表面接触部分的下端设置在比外表面倾斜部分的下端更高的轴向上。

公开(公告)号：US07902732B2

公开(公告)日：2011-03-08

申请号：US12732481

申请日：2010-03-26

申请人： Yasutaka Ino ,  Naoyuki Takada

发明人： Yasutaka Ino ,  Naoyuki Takada

IPC分类号： H02K11/00

CPC分类号： G11B33/08 ,  G11B25/043 ,  H02K1/187 ,  H02K5/24

摘要： In the base bracket of the motor, the bottom-inner surface of the base bracket includes a first bottom-inner area arranged over a circuit board attaching portion of a bottom-outer surface to which the circuit board is attached, and a second bottom-inner area arranged other than the first bottom-inner area in a level axially lower than the first bottom-inner area. The second bottom-inner area defines a base of the concave portion arranged in the bottom-inner surface of the base bracket. A characteristic frequency of the disk storage device using the motor with the base bracket is preferably adjustable by changing the depth or width of the concave portion while the strength of the base bracket is preferably maintained.

摘要翻译： 在电动机的基座支架中，基座支架的底面包括布置在电路板附接的底外表面的电路板安装部分上的第一底部 - 内部区域， 内部区域布置在第一底部 - 内部区域之外，其轴向低于第一底部 - 内部区域。 第二底部内部区域限定设置在基座支架的底部 - 内表面中的凹部的基部。 使用具有基座托架的马达的盘存储装置的特征频率优选地可以通过改变凹部的深度或宽度来进行调节，同时优选地保持底座的强度。

公开(公告)号：US07714469B2

公开(公告)日：2010-05-11

申请号：US11865740

申请日：2007-10-02

申请人： Yasutaka Ino ,  Naoyuki Takada

发明人： Yasutaka Ino ,  Naoyuki Takada

IPC分类号： H02K11/00

CPC分类号： G11B33/08 ,  G11B25/043 ,  H02K1/187 ,  H02K5/24

摘要： In the base bracket of the motor, the bottom-inner surface of the base bracket includes a first bottom-inner area arranged over a circuit board attaching portion of a bottom-outer surface to which the circuit board is attached, and a second bottom-inner area arranged other than the first bottom-inner area in a level axially lower than the first bottom-inner area. The second bottom-inner area defines a base of the concave portion arranged in the bottom-inner surface of the base bracket. A characteristic frequency of the disk storage device using the motor with the base bracket is preferably adjustable by changing the depth or width of the concave portion while the strength of the base bracket is preferably maintained.

摘要翻译： 在电动机的基座支架中，基座支架的底面包括布置在电路板附接的底外表面的电路板安装部分上的第一底部 - 内部区域， 内部区域布置在第一底部 - 内部区域之外，其轴向低于第一底部 - 内部区域。 第二底部内部区域限定设置在基座支架的底部 - 内表面中的凹部的基部。 使用具有基座托架的马达的盘存储装置的特征频率优选地可以通过改变凹部的深度或宽度来进行调节，同时优选地保持底座的强度。

公开(公告)号：US20080084142A1

公开(公告)日：2008-04-10

申请号：US11865740

申请日：2007-10-02

申请人： Yasutaka INO ,  Naoyuki TAKADA

发明人： Yasutaka INO ,  Naoyuki TAKADA

IPC分类号： H02K5/04 ,  G11B17/02

CPC分类号： G11B33/08 ,  G11B25/043 ,  H02K1/187 ,  H02K5/24

摘要： In the base bracket of the motor, the bottom-inner surface of the base bracket includes a first bottom-inner area arranged over a circuit board attaching portion of a bottom-outer surface to which the circuit board is attached, and a second bottom-inner area arranged other than the first bottom-inner area in a level axially lower than the first bottom-inner area. The second bottom-inner area defines a base of the concave portion arranged in the bottom-inner surface of the base bracket. A characteristic frequency of the disk storage device using the motor with the base bracket is preferably adjustable by changing the depth or width of the concave portion while the strength of the base bracket is preferably maintained.

摘要翻译： 在电动机的基座支架中，基座支架的底面包括布置在电路板附接的底外表面的电路板安装部分上的第一底部 - 内部区域， 内部区域布置在第一底部 - 内部区域之外，其轴向低于第一底部 - 内部区域。 第二底部内部区域限定设置在基座支架的底部 - 内表面中的凹部的基部。 使用具有基座托架的马达的盘存储装置的特征频率优选地可以通过改变凹部的深度或宽度来进行调节，同时优选地保持底座的强度。