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13 条记录 (耗时 0.047 秒)

    FAN
    6.
    发明申请
    FAN 审中-公开
    风扇

    公开(公告)号：US20130004347A1

    公开(公告)日：2013-01-03

    申请号：US13495418

    申请日：2012-06-13

    申请人： Teiichi Hirono ,  Tomohiro Hasegawa ,  Shinichiro Noda ,  Yoshiharu Ikegami ,  Masafumi Fujimoto

    发明人： Teiichi Hirono ,  Tomohiro Hasegawa ,  Shinichiro Noda ,  Yoshiharu Ikegami ,  Masafumi Fujimoto

    IPC分类号： F04D25/08 ,  F04D25/06

    CPC分类号： F04D25/062 ,  F04D25/0626 ,  F04D29/0513 ,  F04D29/063 ,  F04D29/083

    摘要： A fan includes a motor and an impeller. The motor includes a stationary portion and a rotating portion. The stationary portion includes a stator and a bearing portion. The bearing portion includes a sleeve and a bearing housing. The rotating portion includes a rotor magnet, a shaft, and a thrust plate. A radial gap includes a radial dynamic pressure bearing portion arranged to generate a fluid dynamic pressure acting axially downward on a lubricating oil, while a thrust gap includes a thrust dynamic pressure bearing portion arranged to generate a fluid dynamic pressure acting radially inward on the lubricating oil. A circulation hole extending in an axial direction is defined between the bearing housing and the sleeve. The radial gap is arranged to have a radial width in a range of about 5 μm to about 20 μm.

    摘要翻译： 风扇包括电机和叶轮。 马达包括固定部分和旋转部分。 固定部分包括定子和轴承部分。 轴承部分包括套筒和轴承壳体。 旋转部分包括转子磁体，轴和止推板。 径向间隙包括径向动压轴承部分，其布置成产生轴向向下在润滑油上作用的流体动压力，而推力间隙包括推力动压轴承部分，该推力动压轴承部分布置成产生径向向内作用在润滑油上的流体动压力 。 在轴承壳体和套筒之间限定沿轴向延伸的循环孔。 径向间隙布置成具有在约5μm至约20μm的范围内的径向宽度。

    Bearing apparatus, spindle motor, and disk drive apparatus
    8.
    发明授权
    Bearing apparatus, spindle motor, and disk drive apparatus 有权
    轴承装置，主轴电机和磁盘驱动装置

    公开(公告)号：US08794839B2

    公开(公告)日：2014-08-05

    申请号：US13602348

    申请日：2012-09-04

    申请人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise ,  Takehito Tamaoka ,  Kazuhiro Sato ,  Yoichi Sekii

    发明人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise ,  Takehito Tamaoka ,  Kazuhiro Sato ,  Yoichi Sekii

    IPC分类号： F16C32/06

    CPC分类号： F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677

    摘要： A bearing apparatus includes a stationary shaft, a first annular member, and a rotating member. The rotating member includes a first inner circumferential surface arranged opposite to the outer circumferential surface of the stationary shaft, and a second inner circumferential surface arranged opposite to an outer circumferential surface of the first annular member. A lubricating oil is arranged in a gap between a surface of a stationary member and the rotating member. On an upper side of an upper surface of the lubricating oil, the first annular member and the rotating member are arranged radially opposite to each other with a slight gap defined therebetween, so that a labyrinth seal is defined. The labyrinth seal and a fixing range over which the stationary shaft and the first annular member are fixed to each other are arranged to overlap with each other in a radial direction.

    摘要翻译： 轴承装置包括固定轴，第一环形构件和旋转构件。 旋转构件包括与固定轴的外周面相对配置的第一内周面和与第一环状构件的外周面相对设置的第二内周面。 润滑油布置在固定件的表面和旋转件之间的间隙中。 在润滑油的上表面的上侧，第一环形构件和旋转构件彼此径向相对设置，在其间限定了微小的间隙，从而限定了迷宫式密封。 迷宫式密封件和固定轴和第一环形构件彼此固定的固定范围被布置成在径向方向上彼此重叠。

    Dynamic pressure bearing and spindle motor using the same
    9.
    发明授权
    Dynamic pressure bearing and spindle motor using the same 有权
    动态压力轴承和主轴电机使用相同

    公开(公告)号：US08690435B2

    公开(公告)日：2014-04-08

    申请号：US12952223

    申请日：2010-11-23

    申请人： Akihiro Kimura ,  Kyoko Horise ,  Ryota Ogino ,  Kunio Sakurada ,  Teiichi Hirono

    发明人： Akihiro Kimura ,  Kyoko Horise ,  Ryota Ogino ,  Kunio Sakurada ,  Teiichi Hirono

    IPC分类号： F16C32/06

    CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C2370/12

    摘要： A dynamic pressure bearing has a reduced axial dimension and is constructed to ensure smooth feeding of a lubricating oil. The dynamic pressure bearing includes a communicating hole and at least one tapered seal, and is constructed such that an opening angle of one of the at least one tapered seal through which oil feeding is possible is in a range of about 30 degrees inclusive to about 180 degrees exclusive, a tapered seal wall surface depth W1 of the tapered seal is about 0.3 mm or more, and a sum of distances over which the lubricating oil travels from both sides of an end portion of the communicating hole in a cross-section beyond a wall surface of the communicating hole along a wall surface opposite the end portion of the communicating hole exceeds an inside diameter of the communicating hole.

    摘要翻译： 动态压力轴承具有减小的轴向尺寸并且构造成确保润滑油的顺利进给。 动压轴承包括连通孔和至少一个锥形密封件，并且构造成使得至少一个锥形密封件中的一个的开启角度可以在大约30度至大约180度的范围内 锥形密封件的锥形密封壁表面深度W1为约0.3mm以上，以及润滑油在连通孔的端部的两侧从横截面的两侧行进的距离之和超过 连通孔的沿着与连通孔的端部相对的壁面的壁面超过连通孔的内径。

    Bearing apparatus, spindle motor, and disk drive apparatus
    10.
    发明授权
    Bearing apparatus, spindle motor, and disk drive apparatus 有权
    轴承装置，主轴电机和磁盘驱动装置

    公开(公告)号：US08337086B2

    公开(公告)日：2012-12-25

    申请号：US12793851

    申请日：2010-06-04

    申请人： Takayuki Oe ,  Teiichi Hirono ,  Kunio Sakurada ,  Junya Mizukami

    发明人： Takayuki Oe ,  Teiichi Hirono ,  Kunio Sakurada ,  Junya Mizukami

    IPC分类号： F16C32/06

    CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2036

    摘要： A bearing apparatus includes a shaft, a thrust cup including an annular potion and a cylindrical portion, a rotating member including a through hole defined therein, and a lubricating oil. A second gap defined between a lower surface of the rotating member and an upper surface of the annular portion of the thrust cup includes a first region in communication with a capillary seal portion, and a second region positioned radially inward of the first region and having an axial dimension smaller than that of the first region. A lower end portion of the through hole is open at a location radially outwardly away from a boundary between the first and second regions, so that a local circulation of the lubricating oil arises within the first region during rotation of the rotating member.

    摘要翻译： 轴承装置包括轴，包括环形部分的推力杯和圆柱形部分，包括限定在其中的通孔的旋转构件和润滑油。 限定在旋转构件的下表面和推力杯的环形部分的上表面之间的第二间隙包括与毛细管密封部分连通的第一区域和位于第一区域的径向内侧的第二区域，并且具有 轴向尺寸小于第一区域的尺寸。 通孔的下端部在径向向外远离第一和第二区域之间的边界的位置处开口，使得在旋转构件旋转期间润滑油的局部循环在第一区域内产生。