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公开(公告)号：US08976486B2
公开(公告)日：2015-03-10
申请号：US14053258
申请日：2013-10-14
发明人： Hirotake Nishino , Akira Suzuki , Kazuyoshi Nagai
IPC分类号： G11B17/02 , G11B17/028 , G11B19/20
CPC分类号： G11B17/0287 , G11B19/2009
摘要： A rotating device is provided with: a hub that is rotatably supported by the base and on which a recording disk is to be mounted; a yoke that is fixedly provided on the hub and is configured to hold a magnet; a bearing unit in which one end thereof is fixedly provided on the base and in which the other end thereof is configured to hold the hub; and a coil that is fixedly provided on the base and is configured to generate electromagnetic interaction with the magnet. The hub has a screw hole in which a screw for fixing a clamper, which is used to fix the recording disk to the hub, to the hub is screwed. The screw hole penetrates the hub. The yoke is configured such that the yoke covers one end of the screw hole.
摘要翻译： 旋转装置设置有：由基座可旋转地支撑并且其上将安装有记录盘的轮毂; 固定地设置在所述轮毂上并构造成保持磁体的轭; 轴承单元，其一端固定地设置在基座上，其另一端构造成保持毂; 以及线圈，其固定地设置在所述基座上并且被配置为产生与所述磁体的电磁相互作用。 轮毂具有螺钉孔，螺钉用于将用于将记录盘固定到轮毂的夹持器固定到轮毂上。 螺丝孔穿过轮毂。 轭被构造成使得轭覆盖螺钉孔的一端。
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公开(公告)号：US08970987B2
公开(公告)日：2015-03-03
申请号：US14277938
申请日：2014-05-15
发明人： Ryusuke Sugiki
CPC分类号： G11B19/2018 , F16C17/107 , F16C32/0659 , F16C33/103 , F16C33/745 , F16C2370/12 , G11B5/4813 , G11B19/2036 , G11B33/123 , Y10T29/49639
摘要： A first sleeve rotatably extends around a shaft. First and second flanges are fixed to the shaft. A second sleeve extending around the first sleeve is fixed thereto. A first annular member fixed to the second sleeve surrounds the first flange. A second annular member fixed to the second flange surrounds a portion of the second sleeve. A first capillary seal includes a clearance between the first flange and the first annular member. A second capillary seal includes a clearance between the second annular member and the second sleeve. Lubricant is provided in the clearances in the first and second capillary seals. The second annular member and the second sleeve are designed so that the lubricant in the clearance in the second capillary seal can be viewed from a point in a radial position which is outward of the second sleeve as seen in an axial direction.
摘要翻译： 第一套筒围绕轴可旋转地延伸。 第一和第二法兰固定在轴上。 围绕第一套筒延伸的第二套筒固定在其上。 固定到第二套筒的第一环形构件围绕第一凸缘。 固定到第二凸缘的第二环形构件围绕第二套筒的一部分。 第一毛细管密封件包括第一凸缘和第一环形构件之间的间隙。 第二毛细管密封件包括第二环形构件和第二套筒之间的间隙。 润滑剂设置在第一和第二毛细管密封件的间隙中。 第二环形构件和第二套筒被设计成使得可以从在轴向方向看到的第二套筒的外侧的径向位置的点观察第二毛细管密封件中的间隙中的润滑剂。
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13.发明授权公开(公告)号：US08902542B2
公开(公告)日：2014-12-02
申请号：US13850007
申请日：2013-03-25
发明人： Kazuyoshi Nagai , Hiroshi Iwai
CPC分类号： G11B33/08 , G11B19/2018 , G11B25/043 , H02K1/187
摘要： In a disk drive device, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub through a bearing unit. A laminated core is formed by laminating magnetic steel sheets, the laminated core having a ring portion and a plurality of teeth that extend radially from the ring portion, with coils wound around the plurality of teeth. A projecting portion is formed along the bearing unit, which axially extends toward the inner surface of the hub and by which the core is supported. The laminated core is fixed by sandwiching the ring portion between a seat formed on the base and an extending portion extending radially outward from the projecting portion.
摘要翻译： 在磁盘驱动装置中，将磁记录盘安装在轮毂上。 基板通过轴承单元可旋转地支撑毂。 通过层叠电磁钢板，层叠铁芯具有环形部分和从环形部分径向延伸的多个齿形成层叠铁心，绕组缠绕在多个齿上。 沿着轴承单元形成突出部分，该轴承单元轴向地延伸到毂的内表面，并且芯体被支撑。 层叠铁芯通过将环部分夹在形成在基座上的座和从突出部分径向向外延伸的延伸部分而被固定。
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公开(公告)号：US20140212079A1
公开(公告)日：2014-07-31
申请号：US14151906
申请日：2014-01-10
发明人： Mitsuo KODAMA , Ryusuke Sugiki
IPC分类号： G11B33/14
CPC分类号： G11B33/1473 , G11B19/2036
摘要： A disk drive unit includes a rotor including a disk setting part on which a disk is set, a bearing unit configured to rotatably support the rotor, wherein the bearing unit includes a shaft member and a bearing member surrounding the shaft member, and a lubricant provided in a gap between the shaft member and the bearing member, a fixed body configured to support the bearing unit, and a capturing body, provided in a space communicating from a gas-liquid interface of the lubricant to a disk accommodating space in which the disk is accommodated, configured to capture the lubricant vaporizing from the gas-liquid interface.
摘要翻译： 磁盘驱动单元包括转子，该转子包括设置有盘的盘设定部，配置为可旋转地支撑转子的轴承单元，其中，所述轴承单元包括轴构件和围绕所述轴构件的轴承构件， 在轴构件和轴承构件之间的间隙中，构造成支撑轴承单元的固定体和设置在从润滑剂的气液界面连通到盘容纳空间的空间中的捕获体，其中盘 被配置成捕获从气 - 液界面蒸发的润滑剂。
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公开(公告)号：US20140211341A1
公开(公告)日：2014-07-31
申请号：US14166651
申请日：2014-01-28
发明人： Mitsuo KODAMA , Ryusuke SUGIKI
CPC分类号： G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B25/043 , G11B33/1473 , H02K7/086
摘要： A disk drive device comprises a chassis, an annular hub having an outer periphery on which a recording disk is to be mounted, and having an inner periphery to which an annular magnet is fastened, a fluid bearing unit that supports the hub in a manner freely rotatable relative to the chassis, an opposing wall formed annularly on the surface of the chassis at the hub side, and facing with at least partially the inner periphery of the hub in the radial direction, a first gap that extends in the axial direction between the inner periphery of the hub and the opposing wall, and a second gap that is continuous from the first gap and extends in the radial direction between the end face of the hub and the chassis.
摘要翻译： 磁盘驱动装置包括底盘，具有外周的环形轮毂，其上安装有记录盘，并且具有固定有环形磁体的内周;流体轴承单元，以自由方式支撑轮毂; 可相对于所述底盘旋转的相对的壁，所述相对壁在所述轮毂侧的所述底盘的表面上环形地形成，并且至少部分地相对于所述轮毂的径向方向的内周面;第一间隙， 轮毂的内周和相对的壁，以及从第一间隙连续并在轮毂的端面和底盘之间沿径向方向延伸的第二间隙。
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公开(公告)号：US08780494B1
公开(公告)日：2014-07-15
申请号：US14202902
申请日：2014-03-10
发明人： Mitsuo Kodama , Masafumi Mizuno , Taketo Nonaka
IPC分类号： G11B19/20
CPC分类号： G11B19/2036 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B5/012 , G11B19/2009 , H02K5/1677 , H02K7/08 , H02K7/086
摘要： A rotating device includes a sleeve which encircles a shaft, a housing which supports the shaft and which forms an annular supporting recess where the lower end of the sleeve enters together with the shaft, a ring member which is provided above the sleeve and which is fixed to the shaft in a manner encircling the shaft. A first gap between the sleeve and the shaft includes first and second radial dynamic pressure generating portions. An annular sleeve recess is formed in upper face of the sleeve. The ring member includes a ring entering portion that enters the sleeve recess in a non-contact manner. An outward gap in the radial direction where the ring entering portion and the sleeve recess face with each other in the radial direction includes a second air-liquid interface of a lubricant.
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公开(公告)号：US20140147065A1
公开(公告)日：2014-05-29
申请号：US14086275
申请日：2013-11-21
发明人： Ryusuke SUGIKI
IPC分类号： F16C32/06
CPC分类号： F16C17/026 , F16C33/1045 , F16C33/106 , F16C33/107 , F16C2370/12
摘要： A rotating device includes a shaft body that has a shaft, a first flange extending outwardly from the outer periphery of the shaft, and a second flange, a bearing body that has a shaft encircling member encircling the shaft between the first flange and the second flange, a first thrust opposing part formed between the shaft encircling member and the first flange, a second thrust opposing part formed between the shaft encircling member and the second flange, an intermediate space provided in a gap between the shaft and the shaft encircling member, a radial dynamic pressure bearing, a first communication channel that allows the first thrust opposing part to be in communication with the intermediate space, and a second communication channel that allows the second thrust opposing part to be in communication with the intermediate space.
摘要翻译： 旋转装置包括轴体，其具有轴，从轴的外周向外延伸的第一凸缘和第二凸缘;轴承体，其具有围绕轴的第一凸缘和第二凸缘之间的轴环绕构件 形成在所述轴环绕构件和所述第一凸缘之间的第一推力对置部，形成在所述轴环绕构件和所述第二凸缘之间的第二推力对置部，设置在所述轴与所述轴环绕构件之间的间隙中的中间空间， 径向动压轴承，允许第一推力相对部分与中间空间连通的第一连通通道，以及允许第二推力对置部分与中间空间连通的第二连通通道。
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公开(公告)号：US20130242433A1
公开(公告)日：2013-09-19
申请号：US13891243
申请日：2013-05-10
发明人： Ryusuke Sugiki
IPC分类号： G11B19/20
CPC分类号： G11B19/2018 , F16C17/107 , F16C32/0659 , F16C33/103 , F16C33/745 , F16C2370/12 , G11B5/4813 , G11B19/2036 , G11B33/123 , Y10T29/49639
摘要： A first sleeve rotatably extends around a shaft. First and second flanges are fixed to the shaft. A second sleeve extending around the first sleeve is fixed thereto. A first annular member fixed to the second sleeve surrounds the first flange. A second annular member fixed to the second flange surrounds a portion of the second sleeve. A first capillary seal includes a clearance between the first flange and the first annular member. A second capillary seal includes a clearance between the second annular member and the second sleeve. Lubricant is provided in the clearances in the first and second capillary seals. The second annular member and the second sleeve are designed so that the lubricant in the clearance in the second capillary seal can be viewed from a point in a radial position which is outward of the second sleeve as seen in an axial direction.
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公开(公告)号：US20130229093A1
公开(公告)日：2013-09-05
申请号：US13872561
申请日：2013-04-29
发明人： Takanori WATANABE , Mitsuo KODAMA , Hiroshi IWAI , Akira NISHIO
IPC分类号： H02K3/28
CPC分类号： H02K3/28 , G11B17/0287 , G11B19/2009 , G11B25/043 , H02K3/18 , H02K5/1675 , H02K21/22
摘要： A disk drive device includes: a base member; a hub on which a recording disk is placed; a bearing unit arranged on the base member for rotatably supporting the hub; and a spindle drive unit for rotationally driving the hub, wherein the spindle drive unit includes a stator core having salient poles, a coil wound around each of the salient poles, and a magnet having a plurality of magnetic poles arranged in a circumferential direction opposed to the salient poles, the hub includes an outer cylindrical portion formed of a magnetic material and engaged with an inner periphery of the recording disk, and an inner cylindrical portion fixing an outer periphery of the magnet, the number of magnetic poles is an even number in a range of 10 to 16, and the number of salient poles is a multiple of 3 in a range of 12 to 24.
摘要翻译： 磁盘驱动装置包括：基座部件; 记录盘放置在其上的集线器; 轴承单元，布置在所述基座构件上，用于可旋转地支撑所述轮毂; 以及用于旋转驱动轮毂的主轴驱动单元，其中所述主轴驱动单元包括具有凸极的定子芯，缠绕在每个所述凸极上的线圈，以及具有沿与所述凸极相对的圆周方向布置的多个磁极的磁体 凸极包括由磁性材料形成并与记录盘的内周接合的外圆柱形部分和固定磁铁外周的内圆柱形部分，磁极数量为偶数 范围为10〜16，凸极数为12〜24的3的倍数。
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公开(公告)号：US20150213833A1
公开(公告)日：2015-07-30
申请号：US14682149
申请日：2015-04-09
发明人： Takanori WATANABE , Takuji YAMADA , Susumu ANDO , Hiroshi IWAI
IPC分类号： G11B19/20
CPC分类号： G11B19/2045 , G11B19/2036 , G11B25/043 , G11B33/148 , Y10T29/49639
摘要： In a rotating device, a recording disk is mounted on a hub. A base rotatably supports the hub via a bearing unit. A core is fixed to the base with a ring portion and a plurality of teeth, with coils wound there around. The bearing unit includes a cylindrical portion that surrounds a radial dynamic pressure groove. The base includes an integrated surrounding portion protruding toward the hub, with the ring portion glued there around. The base further includes an integrated increasing-thickness portion arranged outside of the surrounding portion such that the increasing-thickness portion becomes thicker the closer it is to the surrounding portion. The cylindrical portion is surrounded by the surrounding portion, the surrounding portion is surrounded by the increasing-thickness portion, and a surface of the increasing-thickness portion at least partly overlaps the radial dynamic pressure groove in the axial direction.
摘要翻译： 在旋转装置中，记录盘安装在轮毂上。 基座通过轴承单元可旋转地支撑毂。 芯部具有环形部分和多个齿部固定到基部，线圈缠绕在其周围。 轴承单元包括围绕径向动态压力槽的圆柱形部分。 底座包括朝向轮毂突出的一体的环绕部分，其中环部分胶合在其周围。 底座还包括设置在周围部分外部的集成增加厚度部分，使得增加厚度部分越靠近其周围部分变得越厚。 圆筒部被周围部包围，周围部由加厚部包围，增厚部的表面与轴向的径向动压槽至少部分重叠。
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