公开(公告)号：US07474502B2

公开(公告)日：2009-01-06

申请号：US11456918

申请日：2006-07-12

申请人： Takehito Tamaoka ,  Shingo Suginobu

发明人： Takehito Tamaoka ,  Shingo Suginobu

IPC分类号： G11B17/02

CPC分类号： G11B17/0281 ,  G11B17/0287

摘要： A rotor hub for use in a motor installed into a recording disk driving device to spin a recording disk includes a convex portion, a disk placing portion around the convex portion, and the relief portion which is a substantially circular concave portion disposed between the convex portion and the disk placing portion. The recording disk, preferably a 1.8-inch or smaller type disk, having a center circular through-hole, is mounted on the rotor hub. When the recording disk is mounted on the rotor hub, with the bottom surface thereof abutting against a portion of the disk placing portion and an inner side surface of the center circular through-hole of the recording disk, an upper edge of the relief portion is arranged axially lower than an upper edge of the inner side surface of the center circular through-hole, and a bottom edge of the relief portion is arranged inward from an inner edge of the bottom surface of the recording disk.

摘要翻译： 一种用于安装在记录盘驱动装置中以旋转记录盘的电动机中的电动机的转子轮毂包括凸部，围绕凸部的盘放置部以及设置在凸部之间的大致圆形的凹部的浮雕部 和盘放置部。 具有中心圆形通孔的记录盘，优选为1.8英寸或更小的盘，安装在转子毂上。 当记录盘安装在转子轮毂上时，其底表面抵靠盘片放置部分的一部分和记录盘的中心圆形通孔的内侧表面，该释放部分的上边缘是 布置成比中心圆形通孔的内侧表面的上边缘轴向地低，并且所述浮雕部分的底边缘从记录盘的底表面的内边缘向内布置。

公开(公告)号：US20070007841A1

公开(公告)日：2007-01-11

申请号：US11428843

申请日：2006-07-06

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： H02K7/00 ,  H02K5/16 ,  H02K21/12

CPC分类号： F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2018 ,  H02K5/1675 ,  H02K7/085 ,  H02K21/16 ,  H02K21/222

摘要： Motor having a rotor magnet, a stator and a bearing mechanism with vibrations and noises suppressed. The greatest common divisor of the number of the magnetic poles of the rotor magnet and the number of the teeth of the stator is larger than the number of drive phases for the stator. Further, the number of the radial dynamic pressure generation grooves or the thrust dynamic pressure generation grooves coincides with none of the divisors and multiples of the number of the magnetic poles of the rotor magnet and the number of the teeth of the stator.

摘要翻译： 具有转子磁体，定子和轴承机构的电机具有振动和噪声。 转子磁体的磁极数量和定子齿数的最大公约数大于定子的驱动相位数。 此外，径向动压产生槽或推力动压产生槽的数量与转子磁体的磁极数量和定子的数量的除数和倍数不一致。

公开(公告)号：US20060268453A1

公开(公告)日：2006-11-30

申请号：US11420013

申请日：2006-05-24

申请人： Tsuchitsugu Watanabe ,  Takehito Tamaoka

发明人： Tsuchitsugu Watanabe ,  Takehito Tamaoka

IPC分类号： G11B17/02

CPC分类号： G11B25/043 ,  G11B19/2009

摘要： A spindle motor includes an electroconductive sheet member. The electroconductive sheet member is attached so as to be abutted against a sleeve housing and a metal exposed portion of a base plate. With the configuration, the conductivity between the base plate and the sleeve housing is preferably achieved.

摘要翻译： 主轴电机包括导电片部件。 导电片构件被安装成与基板的套筒壳体和金属暴露部分抵接。 通过该构造，优选地实现基板和套筒壳体之间的导电性。

公开(公告)号：US20060244326A1

公开(公告)日：2006-11-02

申请号：US11380659

申请日：2006-04-28

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： H02K7/00 ,  H02K5/16

CPC分类号： H02K5/1675 ,  F16C17/026 ,  F16C33/107 ,  F16F15/023 ,  F16F2230/04 ,  H02K7/085

摘要： In an electric motor provided with a bearing mechanism utilizing fluid dynamic pressure, it is an object of the invention to restrain synergy superimposition and synergy superimposition resonance of vibration caused by deterioration of roundness of the sleeve and harmonic vibration caused by number of poles or number of phase. In a bearing mechanism which is provided in a motor and which utilizes fluid dynamic pressure of lubricant oil, five straight grooves substantially parallel to the center axis J1 are formed in an outer surface of a sleeve at substantially equal distances from one another in the circumferential direction. The grooves and an inner surface of a sleeve housing form flow paths for circulating the lubricant oil. In the motor, the number of grooves of the sleeve is a relative prime with respect to the number of phase (three phase) of drive current of the motor and the number of poles (eight poles) of the field magnet. With this, it is possible to suppress the synergy superimposition and the synergy superimposition resonance of vibration caused by deterioration of the roundness of sleeve and vibration caused by number of poles of the motor or the number of phase of the drive current.

摘要翻译： 在具有利用流体动压力的轴承机构的电动机中，本发明的目的是抑制由于套筒的圆度的劣化引起的振动的协同叠加和协同叠加共振，以及由极数或数量引起的谐波振动 相。 在设置在电动机中并且利用润滑油的流体动力学的轴承机构中，基本上平行于中心轴线J1的五个直槽形成在套筒的外表面中，在圆周方向上彼此基本相等的距离 。 凹槽和套筒壳体的内表面形成用于使润滑油循环的流动路径。 在电动机中，套筒的槽数相对于电动机的驱动电流的相数（三相）数量和励磁磁极的极数（八极数）是相对的。 由此，可以抑制由于套筒的圆度的劣化和由电动机的极数或驱动电流的相数引起的振动引起的振动的协同叠加和协同叠加共振。

公开(公告)号：US20060238057A1

公开(公告)日：2006-10-26

申请号：US11162095

申请日：2005-08-29

申请人： Takehito Tamaoka ,  Hiroaki Hirano ,  Masayoshi Saichi ,  Junichi Takatera

发明人： Takehito Tamaoka ,  Hiroaki Hirano ,  Masayoshi Saichi ,  Junichi Takatera

IPC分类号： H02K21/12 ,  H02K1/00 ,  H02K1/27

CPC分类号： G11B19/2009 ,  H02K1/278 ,  H02K21/16

摘要： A brushless motor as an example of the invention has a stationary assembly 2 having a first housing member 10 made of a ferromagnetic material and a stator 20 held in the first housing member 10, and a rotor 6 having a rotor magnet 70 facing the stator 20. A annular shield plate 80 held by the rotor 6 is disposed between the rotor magnet 70 and the first housing member 10 and, further, an outer circumferential face 80a of the shield plate 80 is disposed between a magnetically neutral area 46 in the radial direction in the lower end of the rotor magnet 70 and the outer circumferential face of the rotor magnet 70.

摘要翻译： 作为本发明的实例的无刷电动机具有固定组件2，其具有由铁磁材料制成的第一壳体构件10和保持在第一壳体构件10中的定子20以及具有面向定子20的转子磁体70的转子6 。 由转子6保持的环形屏蔽板80设置在转子磁体70和第一壳体部件10之间，此外，屏蔽板80的外周面80a设置在径向的磁性中性区域46之间 在转子磁体70的下端和转子磁铁70的外周面。

公开(公告)号：US20060232159A1

公开(公告)日：2006-10-19

申请号：US11279756

申请日：2006-04-14

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： H02K1/00

CPC分类号： H02K1/146

摘要： The wire winding height of the first teeth over which the head portion moves is lower than the wire winding height of the second teeth over which is out of the moving range of the head portion. The first wire winding portion is formed so as to be radially longer than the second wire winding portion. With the configuration mentioned above, the number of winding of the wire around the first teeth (243a) is maintained without reducing the torque and varying the uniformity of the magnetic force in the circumferential direction which the stator generates.

摘要翻译： 头部移动的第一齿的线缠绕高度低于不在头部的移动范围内的第二齿的线缠绕高度。 第一线绕部分形成为比第二线绕部分径向更长。 利用上述结构，可以保持围绕第一齿（243a）的线的绕组数，而不会减小转矩并改变定子产生的周向上的磁力的均匀性。

公开(公告)号：US20060227455A1

公开(公告)日：2006-10-12

申请号：US11397858

申请日：2006-04-05

申请人： Takehito Tamaoka ,  Kazuaki Matsuda

发明人： Takehito Tamaoka ,  Kazuaki Matsuda

IPC分类号： G11B17/02

CPC分类号： G11B19/2009 ,  H02K3/522 ,  H02K5/225 ,  H02K11/33 ,  H02K2203/03

摘要： A spindle motor for rotating a recording disk such as a magnetic disk is disclosed. The stator coil of the spindle motor is connected to an external device using a FPC including an outer frame located on the upper surface of a circular core back of the stator core and a plurality of connecting portions formed continuously in radial direction inward from the outer frame each with a land connected with a each coil end between adjacent ones of the teeth of the stator core. Each connecting portion is bent down from the outer frame and arranged under the stator. The FPC connecting portions are each arranged between the teeth and bent down axially under the stator. In this way, the FPC connecting portions can be easily held fixedly to reduce the thickness of the motor.

摘要翻译： 公开了一种用于旋转诸如磁盘的记录盘的主轴电动机。 主轴电动机的定子线圈使用包括位于定子铁心的圆形铁芯背的上表面上的外框的FPC和从外框向内径向连续形成的多个连接部而与外部装置连接 每个具有与定子芯的相邻齿之间的每个线圈端连接的平台。 每个连接部分从外框架向下弯曲并布置在定子下方。 FPC连接部分各自布置在齿之间并且在定子下方沿轴向弯曲。 以这种方式，可以容易地固定FPC连接部，以减小电动机的厚度。

公开(公告)号：US20060207098A1

公开(公告)日：2006-09-21

申请号：US11276863

申请日：2006-03-17

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： B21K1/10 ,  F16C32/06

CPC分类号： H02K5/1675 ,  H02K15/14 ,  Y10T29/49636 ,  Y10T29/49639 ,  Y10T29/49696 ,  Y10T29/497 ,  Y10T29/53078

摘要： In the manufacture of a sleeve unit (22), when a sleeve (221) is to be glued to a sleeve housing (222), an endfaces (225) of the sleeve (221) while abutting on a sleeve retainer (51) is spring-biased along the center axis J1 in the direction toward the sleeve retainer (51). Meanwhile, an endface (226) on a side of the sleeve housing (222) opposite from the endface (225) of the sleeve (221) while abutting on a sleeve-housing retainer (52) is spring-biased along the center axis J1 in the direction toward the sleeve-housing retainer (52).

摘要翻译： 在制造套筒单元（22）时，当将套筒（221）胶合到套筒壳体（222）时，套筒（221）的端面（225）在与套筒保持器（51）邻接的同时是 沿着中心轴线J 1朝向套筒保持器（51）的方向弹簧偏置。 同时，在套筒壳体（222）的与套筒（221）的端面（225）相对的一侧上的端面（226）在抵靠在套筒壳体保持器（52）上时沿着中心轴线J被弹簧偏置 1朝着套筒壳体保持器（52）的方向。

公开(公告)号：US20060176612A1

公开(公告)日：2006-08-10

申请号：US11307502

申请日：2006-02-10

申请人： Takehito Tamaoka

发明人： Takehito Tamaoka

IPC分类号： G11B17/02

CPC分类号： H02K1/146 ,  G11B25/043 ,  H02K1/185 ,  H02K3/18 ,  H02K21/14

摘要： A base plate is provided with plural through holes extending vertically through the base plate, at the portions aligned with plural teeth. In the respective through holes of the base plate, the lower portions of wire-wound portions of the corresponding teeth and the lower portions of the coils formed around the wire-wound portions are inserted. The lower surfaces of the wire-wound portions are positioned between the upper main surface and the lower main surface of the base plate in the axial direction.

摘要翻译： 基板在与多个齿对准的部分处设置有沿着基板垂直延伸的多个通孔。 在基板的相应通孔中插入相应齿的绕线部分的下部和围绕线缠绕部分形成的线圈的下部。 绕线部分的下表面沿轴向位于基板的上主表面和下主表面之间。

公开(公告)号：US20060051002A1

公开(公告)日：2006-03-09

申请号：US11162359

申请日：2005-09-08

申请人： Yoichi Sekii ,  Takehito Tamaoka

发明人： Yoichi Sekii ,  Takehito Tamaoka

IPC分类号： F16C32/06

CPC分类号： F16C17/107 ,  F16C33/103 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/1675 ,  H02K5/1677

摘要： In a fluid dynamic pressure bearing, a capillary seal (32) is configured in a third fine clearance (11) defined between an upper peripheral surface of a bearing housing (4) and an inner circumferential surface of an annular member (30) fixed onto a rotor upper wall (16a). Furthermore, the annular member (30) is formed by press working.

摘要翻译： 在流体动压轴承中，毛细管密封件（32）构造成在轴承壳体（4）的上周面和环形构件（30）的内​​圆周表面之间限定的第三细间隙（11）中，固定到 转子上壁（16a）。 此外，通过冲压加工形成环状构件（30）。