公开(公告)号：US20020180290A1

公开(公告)日：2002-12-05

申请号：US10196171

申请日：2002-07-17

发明人： Shin-Ichi Takayanagi

IPC分类号： H02K005/16 ,  H02K007/00 ,  H02K011/00

CPC分类号： F16C35/04 ,  F16C19/08 ,  F16C2370/12 ,  H02K7/086

摘要： The fixed shaft type spindle motor of the invention has a fixed shaft vertically installed on a base and a rotor hub supported to freely rotate by the fixed shaft through a bearing. The bearing is composed of a compound ball bearing, and a larger diameter portion of a stepped top-form connection member having the larger diameter portion and a smaller diameter portion is fixedly engaged with the upper end of the outer ring of the compound ball bearing. And, the smaller diameter portion of the connection member is fastened to the rotor hub. The rotary shaft type spindle motor has a rotary shaft vertically installed on the rotor hub, in which the rotary shaft is supported to freely rotate on the base through the bearing. The bearing is composed of a compound ball bearing, and the larger diameter portion of the stepped top-form connection member having the larger diameter portion and the smaller diameter portion is fixedly engaged with the lower end of the outer ring of the compound ball bearing. And, the smaller diameter portion of the connection member is fastened to the base. The compound ball bearing, the shaft (the fixed shaft, the rotary shaft), and the connection member may be assembled in advance integrally in one unit, and the compound ball bearing may be replaced by a fluid bearing. The above configuration will enhance the reliability of the run-out accuracy/NRR0, the noises, the acoustic life, and the rigidity etc., of the spindle motor, and reduce the manufacturing cost.

公开(公告)号：US20020140299A1

公开(公告)日：2002-10-03

申请号：US10105183

申请日：2002-03-26

发明人： Mitsuru Sekiya

IPC分类号： H02K007/00

CPC分类号： G01D5/145

摘要： The magnetic position sensor comprises a permanent magnet piece, a first stator and a second stator arranged, opposite to each other, on an outer circular arc surface of the permanent magnet piece. A hole element is arranged between the first stator and the second stator. An armature arranged is on an inner circular arc surface of the permanent magnet piece. Only the permanent magnet piece is formed in the rotor so as to integrally rotate, thereby detecting an rotation angle of the rotor.

摘要翻译： 磁性位置传感器包括在永磁体片的外圆弧表面上彼此相对布置的永磁体片，第一定子和第二定子。 孔元件布置在第一定子和第二定子之间。 电枢布置在永磁体片的内圆弧表面上。 只有永久磁铁片形成在转子中才能一体旋转，从而检测转子的旋转角度。

公开(公告)号：US20020117910A1

公开(公告)日：2002-08-29

申请号：US10072482

申请日：2002-02-07

申请人： Alps Electric Co., Ltd.

发明人： Tomokuni Wauke

IPC分类号： H02K007/00

CPC分类号： H02K7/09 ,  G11B19/2009 ,  H02K41/03 ,  H02K2201/15

摘要： An inner rotor motor includes a rotor which has a plurality of circumferentially arranged magnetic poles and a stator which is positioned outside a circumference of the rotor and has a stator core which includes a plurality of magnetic pole teeth which face the rotor in an opposed manner and arranges coils for respective magnetic pole teeth. In such a constitution, the stator is arranged within a center angle of 180null with respect to a center of rotation of the rotor. Further, pitches of the magnetic pole teeth in the rotor circumferential direction along which respective rotor facing surfaces of the magnetic pole teeth are arranged are set smaller than pitches of the rotor in the rotor circumferential direction along which the magnetic poles of the rotor are arranged.

摘要翻译： 内转子电动机包括具有多个周向布置的磁极的转子和位于转子的圆周外部的定子，并且具有定子芯，该定子芯包括相对的面对转子的多个磁极齿，以及 为相应的磁极齿排列线圈。 在这种结构中，定子相对于转子的旋转中心配置在180°的中心角度内。 此外，设置磁极齿各自的转子相对表面的转子圆周方向上的磁极齿的间距设定为小于转子周向上的转子的间距，沿转子圆周方向排列有转子的磁极。

公开(公告)号：US20020093256A1

公开(公告)日：2002-07-18

申请号：US09929548

申请日：2001-08-13

申请人： SEAGATE TECHNOLOGY, INC.

发明人： Donald James MacLeod

IPC分类号： H02K007/00 ,  H02K011/00

CPC分类号： G11B19/2009

摘要： A novel spindle motor assembly is disclosed that utilizes a fixed shaft and places the motor rotor components on the outside wall of the spindle hub directly below its disc stack supporting flange. The structure disclosed provides a compact yet powerful motor having a relatively low profile.

摘要翻译： 公开了一种新颖的主轴电动机组件，其利用固定轴并将电动机转子部件放置在主轴毂的外壁上直接在其盘片支撑凸缘的下方。 所公开的结构提供了具有相对低的轮廓的紧凑而强大的马达。

公开(公告)号：US20020079755A1

公开(公告)日：2002-06-27

申请号：US10020129

申请日：2001-12-18

申请人： CALSONIC KANSEI CORPORATION

发明人： Hideki Sunaga ,  Shiro Nakamura ,  Narihito Sano ,  Takeshi Oba ,  Eiji Takahashi ,  Atsushi Takada ,  Masami Kato

IPC分类号： H02K007/00

CPC分类号： H02K11/33

摘要： A brushless motor for a blower fan unit is comprised of a heat sink which has a heat radiating portion and a pair of supporting legs extending from both opposite sides of the heat radiating portion. A free end portion of each supporting leg is in contact with an electric circuit board. A pressing member has a pressing portion, a pair of positioning portions perpendicularly extending from opposite end portions of the pressing portion, and a pair of connecting portions projecting from the pair of positioning portions respectively. The connecting portions are engaged with supporting legs of the heat sink respectively. The pressing portion presses switching devices to the heat sink. The positioning portions are inserted into the through-holes of the electric circuit board respectively.

摘要翻译： 一种用于鼓风机单元的无刷电动机包括散热器，散热器具有散热部分和从散热部分的相对侧延伸的一对支撑脚。 每个支撑腿的自由端部与电路板接触。 按压部件具有按压部，从按压部的相对端部垂直延伸的一对定位部以及从一对定位部突出的一对连接部。 连接部分分别与散热片的支撑腿接合。 按压部分将开关装置按压到散热器。 定位部分别插入到电路板的通孔中。

公开(公告)号：US20020070616A1

公开(公告)日：2002-06-13

申请号：US09896367

申请日：2001-06-28

发明人： Ralph James Knotts ,  Garry Edward Korbel

IPC分类号： H02K007/00

CPC分类号： H02K21/22 ,  H02K1/2786 ,  H02K11/01

摘要： A motor comprises a shaft supported from a base frame and supporting a hub and one or more on the outer diameter thereof. A stator is supported from the shaft, and comprises a plurality of laminations supporting coils which are sequentially energized to cause rotation of a hub which overlies the stator and supports a magnet and back iron radially adjacent these stator coils. A shield is provided extending substantially the entire width of the magnet and intervening between the magnet and the base frame and rotating with the magnet. The flux shield is formed of a magnetic material to capture any stray magnetic flux from the motor magnet.

摘要翻译： 电动机包括从基座支撑并支撑轮毂并在其外径上具有一个或多个的轴。 定子由轴支撑，并且包括支撑线圈的多个叠片，其被顺序地通电以引起覆盖在定子上的轮毂的旋转，并且在径向地邻近这些定子线圈支撑磁体和后铁。 提供了一种屏蔽，其基本上延伸到磁体的整个宽度并且介于磁体和基座框架之间并与磁体一起旋转。 磁通屏蔽由磁性材料形成以捕获来自电动机磁体的任何杂散磁通量。

公开(公告)号：US20020008429A1

公开(公告)日：2002-01-24

申请号：US09862727

申请日：2001-05-23

申请人： HITACHI METALS, LTD.

发明人： Masahiro Masuzawa ,  Masahiro Mita ,  Fumio Kimura ,  Toshiko Takahashi

IPC分类号： H02K007/00 ,  H02K011/00 ,  H02P015/00 ,  H02K001/22

CPC分类号： H02K21/12 ,  G06K19/041 ,  H02K7/1807 ,  H02K21/24

摘要： Disclosed is a permanent magnet generator incorporated in a 3.5null diskette that can be used as an input/output adapter for memory cards that can generate a power generation output of 40 mW or more when the rotor of the generator is rotated at 300 rpm. The permanent magnet generator has such a construction that rotor magnetic poles are provided only on one end face of a disc-shaped permanent magnet serving as a rotor, a plurality of stator magnetic poles are provided only on that end face of the permanent magnet in such a manner as to face the rotor magnetic poles, and a soft magnetic hub is fixedly fitted to the other end face of the permanent magnet. Even when a bonded NdFeB magnet is used as the permanent magnet, a sufficient power can be produced.

摘要翻译： 公开了一种结合在3.5“磁盘中的永久磁铁发生器，其可以用作存储卡的输入/输出适配器，当发电机的转子以300rpm旋转时，可以产生40mW或更大的发电输出。 永久磁铁发电机具有转子磁极仅设置在作为转子的圆盘状永磁体的一个端面上的结构，多个定子磁极仅设置在永久磁铁的该端面上 面向转子磁极的方式，并且软磁性毂固定地配合到永磁体的另一端面。 即使使用粘结NdFeB磁体作为永磁体，也能够产生足够的功率。

公开(公告)号：US20010054854A1

公开(公告)日：2001-12-27

申请号：US09876133

申请日：2001-06-08

申请人： MINEBEA CO., LTD.

发明人： Tadashi Akahori

IPC分类号： H02K007/08 ,  H02K007/00

CPC分类号： H02K5/1737 ,  G11B19/2009

摘要： In an outer rotor type spindle motor for driving a disc with a relatively long axial dimension for mounting a large number of the discs, it is possible to reduce part cost and assembling work cost while increasing a rotational precision. The stator is disposed on an opening surface of a drum portion of the rotor rather than between a pair of bearings within the drum portion. The stator coil end may be led to the outside of the drum portion without passing through the bearing to dispense with the conventional works such as a processing of a shaft, an insertion of a lead wire through a tubular hole and the like. Also, a bush between the drum portion and the bearing, which conventionally causes the degradation of the rotational precision and the increases in the cost for the parts and the assembling work, is dispensed with. In order to elongate the distance between the bearings and reduce the axial direction of the stator, a magnet material having a magnetic energy product that is higher than that generally used to this type of motor is selected.

摘要翻译： 在用于驱动具有相对长的轴向尺寸的盘的用于安装大量盘的外转子型主轴电机中，可以在提高旋转精度的同时降低部件成本和组装工作成本。 定子设置在转子的鼓部分的开口表面上，而不是在滚筒部分内的一对轴承之间。 定子线圈端部可以不通过轴承而被引导到鼓部分的外侧，以省去常规工作，例如轴的加工，通过管状孔等的引线的插入。 此外，通常导致滚筒部分和轴承之间的衬套，其通常导致旋转精度的降低以及零件的​​成本增加和组装工作。 为了延长轴承之间的距离并减小定子的轴向方向，选择具有高于通常用于这种类型的电动机的磁能产品的磁体材料。

公开(公告)号：US20010024069A1

公开(公告)日：2001-09-27

申请号：US09814823

申请日：2001-03-23

发明人： Tadao Yamaguchi

IPC分类号： H02K007/00 ,  H02K011/00 ,  H02K001/22

CPC分类号： H02K7/04

摘要： A spindle motor includes a rotor case in which a shaft support portion is installed at the center of the rotor and a plurality of disc mounting guides are formed by being lifted from the upper surface around the shaft support portion at a predetermined interval, a shaft installed at the shaft support portion, a disc chuck spring having at least one disc inner hold chucking portion and arranged at the rotor case such that at least one disc inner hole chucking portion slightly protrudes between the disc mounting guides, a magnet arranged inside the rotor case, an armature stator facing the magnet via a gap, and a stator base where the armature stator is arranged, the stator base supporting the shaft inside the armature stator.

摘要翻译： 主轴电动机包括转子壳体，其中轴支撑部分安装在转子的中心，并且多个盘安装引导件通过以预定间隔从轴支撑部分的上表面提升而形成，轴安装 在所述轴支撑部分处具有盘卡盘弹簧，所述卡盘弹簧具有至少一个盘内部保持夹持部分并且布置在所述转子壳体处，使得至少一个盘内孔夹持部分在所述盘安装引导件之间略微突出，所述磁体布置在所述转子壳体内 经由间隙面向磁体的电枢定子和配置有电枢定子的定子基座，定子基座将轴支撑在电枢定子内。

公开(公告)号：US20040261594A1

公开(公告)日：2004-12-30

申请号：US10870534

申请日：2004-06-18

申请人： Groz-Beckert KG

发明人： Gerhard Pohl

IPC分类号： H02K007/00 ,  B26D005/08

CPC分类号： B26D5/08 ,  B26F1/04 ,  B26F2210/08 ,  H05K1/0306 ,  H05K3/005 ,  Y10T83/8759 ,  Y10T83/8766 ,  Y10T83/8768 ,  Y10T83/8831

摘要： A stamping device (1), which in particular is arranged for stamping unfired ceramic substrates, has a die holder device (8) with a plurality of dies (4, 5, 6, 7), which for activation can be locked to the die holder device (8) and then jointly with it execute an axial stamping motion. A coupling device (18) which is remote-actuated is used for the locking. For the remote transmission of the actuation motion, a flexible mechanical connecting means is used, such as preferably a cable (16).

摘要翻译： 特别是用于冲压未焙烧的陶瓷基板的冲压装置（1）具有一个具有多个模具（4,5,6,7）的模具保持装置（8），用于激活的模具可以锁定在模具 保持器装置（8），然后与其一起执行轴向冲压运动。 远程致动的联接装置（18）用于锁定。 为了远程传送致动运动，使用柔性的机械连接装置，例如优选地是电缆（16）。