公开(公告)号：US20040250631A1

公开(公告)日：2004-12-16

申请号：US10795908

申请日：2004-03-08

发明人： Eric D. Pattok ,  Mohammad S. Islam ,  Matthew W. Mielke ,  Sainan Feng ,  Ryan J. Pavlawk ,  Tomy Sebastian ,  Christian E. Ross

IPC分类号： H02K007/00

CPC分类号： G01L3/1435 ,  G01D5/2451 ,  G01L3/101 ,  G01L5/221

摘要： An apparatus for measuring relative displacement between a first shaft and a second shaft includes first and second rotor assemblies. The first rotor assembly is coupled to the first shaft and is centered on an axis. The second rotor assembly is coupled to the second shaft. The second rotor assembly has first and second stator plates. Each of the first and second stator plates includes an upper surface and a lower surface. The upper and lower surfaces are parallel. The first and second stator plates include a plurality of teeth extending in a direction radial of the axis. The first and second stator plates form a gap between the lower surface of the first stator plate and the upper surface of the second stator plate. The apparatus further includes at least one magnet having a magnetic field and disposed on the first rotor assembly and a sensing device disposed within the gap for sensing a magnetic flux of the magnetic field.

摘要翻译： 用于测量第一轴和第二轴之间的相对位移的装置包括第一和第二转子组件。 第一转子组件联接到第一轴并以轴为中心。 第二转子组件联接到第二轴。 第二转子组件具有第一和第二定子板。 第一和第二定子板中的每一个包括上表面和下表面。 上表面和下表面是平行的。 第一和第二定子板包括沿轴线的径向延伸的多个齿。 第一和第二定子板在第一定子板的下表面和第二定子板的上表面之间形成间隙。 该装置还包括至少一个具有磁场并且设置在第一转子组件上的磁体和设置在间隙内的感测装置，用于感测磁场的磁通量。

公开(公告)号：US20040232782A1

公开(公告)日：2004-11-25

申请号：US10688399

申请日：2003-10-15

发明人： Mo Xu ,  Victor C. Choo ,  YiRen Hong ,  PohLye Lim ,  SiewMing Ng

IPC分类号： H02K007/00 ,  H02K011/00

CPC分类号： G11B19/2009 ,  H02K1/28 ,  H02K5/02 ,  H02K5/04 ,  H02K5/24

摘要： A base plate for a spindle motor is provided defining a minimal axial gap with a relatively rotatable magnet. In an example, a surface of the base plate is positioned at 0.1 mm from an adjacent surface of a relatively rotatable magnet. The base plate is comprised of a composite material such that stiffness is improved and acoustic vibration is reduced, while maintaining low power consumption and a fast start-up time. A first material, being a nonmagnetic material is employed adjacent to a motor magnet, and a second material having a preferred stiffness is employed at a greater radial distance from the magnet than the radial distance between a stator and the magnet.

摘要翻译： 提供了一种用于主轴电动机的基板，其与相对可旋转的磁体限定最小的轴向间隙。 在一个示例中，基板的表面位于距相对旋转的磁体的相邻表面0.1mm处。 基板由复合材料组成，使得刚度得到改善，声振动减小，同时保持低功耗和快速起动时间。 作为非磁性材料的第一材料与电动机磁体相邻地使用，并且具有优选刚度的第二材料以比定子和磁体之间的径向距离更大的距离磁体的径向距离采用。

公开(公告)号：US20040227413A1

公开(公告)日：2004-11-18

申请号：US10813172

申请日：2004-03-31

发明人： Oswald Kuwert ,  Axel Boettger

IPC分类号： H02K001/04 ,  H02K007/00 ,  H02K011/00 ,  H02K041/00

CPC分类号： H02K7/06

摘要： The invention relates to an electric motor for a linear drive system comprising a motor housing within which a stator, a rotor and a threaded shank are accommodated. The stator has a stator core and phase windings which are connected to phase connectors. The rotor is mounted onto a rotor hub, the rotor hub being supported in the motor housing by roller bearings and coupled to the threaded shank via a thread in order to transform the rotation of the rotor into a translational motion of the threaded shaft. In accordance with a first aspect of the invention, the motor housing has an injection molded part within which the stator, together with the stator core and phase windings, is embedded. A linear guide to accommodate and guide the threaded shank is integrated into the injection molded part of the motor housing. In accordance with a second aspect of the invention, the rotor hub is also formed from an injection molded part within which the rotor is fixed, the injection molded part of the rotor hub having an inner thread which interacts with the outer thread of the threaded shank.

摘要翻译： 本发明涉及一种用于直线驱动系统的电动马达，其包括马达壳体，定子，转子和螺纹杆被容纳在该马达壳体内。 定子具有定子铁芯和相绕组，它们连接到相位连接器。 转子安装在转子毂上，转子毂通过滚子轴承支撑在马达壳体中，并通过螺纹与螺纹杆相连，以便将转子的旋转转变成螺纹轴的平移运动。 根据本发明的第一方面，电动机壳体具有注塑部件，定子与定子铁芯和相绕组一起被嵌入其中。 用于容纳和引导螺纹柄的线性引导件被集成到电动机壳体的注射成型部分中。 根据本发明的第二方面，转子轮毂也由注射成型的部件形成，转子在其内固定在其中，转子毂的注模部分具有内螺纹，该内螺纹与螺纹柄的外螺纹相互作用 。

公开(公告)号：US20040222712A1

公开(公告)日：2004-11-11

申请号：US10695253

申请日：2003-10-27

发明人： YiRen Hong ,  Mo Xu ,  PohLye Lim

IPC分类号： H02K001/04 ,  H02K007/00

CPC分类号： G11B19/2009 ,  H02K1/04 ,  H02K1/185 ,  H02K3/44 ,  H02K5/08 ,  H02K5/24 ,  H02K11/33

摘要： An axially minimized spindle motor is provided that meets industry demands for low profile disc drive memory systems including stiffness, vibration and acoustic demands. Axial height of a base plate is reduced by forming a composite component of the stator and base plate. A thermally conductive bonding substance unites the stator and base plate, and fills in at least a portion of open space adjacent the base plate and stator. By making such a composite component, the axial thickness of the base plate may be reduced. In an aspect, a base plate is provided having an axial height adjacent to a stator in the range of 0.1 mm to 0.3 mm with improved stiffness, reduced vibration and reduced acoustics as compared to conventional low profile disc drive designs.

摘要翻译： 提供轴向最小化的主轴电动机，其满足低硬度盘驱动存储器系统的行业需求，包括刚度，振动和声学需求。 通过形成定子和基板的复合部件来减小基板的轴向高度。 导热接合物体将定子和基板结合在一起，并且填充至与底板和定子相邻的开放空间的至少一部分。 通过制造这样的复合部件，可以减小基板的轴向厚度。 在一方面，与传统的低轮廓盘驱动器设计相比，提供了具有与定子相邻的轴向高度在0.1mm至0.3mm范围内的基板，具有改善的刚度，减小的振动和降低的声学性能。

公开(公告)号：US20040160135A1

公开(公告)日：2004-08-19

申请号：US10382911

申请日：2003-03-07

申请人： Sunonwealth Electric Machine Industry Co., Ltd.

发明人： Alex Horng ,  Yin-Rong Horng ,  Ching-Sheng Hong

IPC分类号： H02K007/00 ,  H02K011/00 ,  H02K019/00

CPC分类号： H02K29/08 ,  H02K1/145 ,  H02K21/227 ,  H02K21/24 ,  Y10S310/06

摘要： A single magnetic conductive plate for a single pole plate brushless dc motor comprises a pole plate, a plurality of pole faces, and an axial hole. The pole plate, the pole faces and an axial hole are integrated into the single magnetic conductive plate. The pole plate is regarded as a base and adapted to combine with a coil to form a stator. The pole faces are punched and equi-spaced round the axial hole proximal the coil. The axial hole is adapted to combine with a mounting seat for supporting a rotor.

摘要翻译： 用于单极板无刷直流电动机的单个导电板包括极板，多个极面和轴向孔。 极板，极面和轴向孔整合到单个导电板中。 极板被认为是基座，并且适于与线圈组合以形成定子。 极面被冲压并围绕线圈附近的轴向孔等距。 轴向孔适于与用于支撑转子的安装座组合。

公开(公告)号：US20040140724A1

公开(公告)日：2004-07-22

申请号：US10417324

申请日：2003-04-16

发明人： Yoshio Higuchi

IPC分类号： H02K007/00 ,  H02K011/00

CPC分类号： H02K23/66 ,  H02K11/215

摘要： A brush motor has a magnetic sensor provided for detecting a change in a field magnet occurring in correspondence with a change in a rotational position of a rotor core.

摘要翻译： 刷马达具有磁传感器，用于检测与转子芯的旋转位置的变化相对应的磁场磁体的变化。

公开(公告)号：US20040119349A1

公开(公告)日：2004-06-24

申请号：US10733117

申请日：2003-12-11

申请人： ebm-papst St. Georgen GmbH & Co. - KG

发明人： Matthis Nickel-Jetter ,  Hermann Rappenecker ,  Siegfried Schreiner

IPC分类号： H02K007/00 ,  H02K011/00

CPC分类号： H02K5/1737 ,  H02K7/1016 ,  H02K21/22

摘要： An improved drum motor, preferably electronically commutated, features a unitary stationary central shaft (18) supporting a stationary inner stator (52), and an external rotor (49), including permanent magnets (54), secured to an inner surface of a generally cylindrical rotatable casing part (18). This permits variable speed operation while avoiding any need for an internal gear linkage. Safety is improved by making sealing plates (76, 78) at respective axial ends of the casing (14) stationary, and providing an annular peripheral seal (90) around each sealing plate. Respective rolling bearings (24, 44) near each end of the casing (14) facilitate rotation of the external rotor (49) relative to the stator (52), and a clamping arrangement (30) minimizes noise from the bearings.

摘要翻译： 改进的鼓式电动机，优选地电子换向，其特征在于支撑固定内部定子（52）的整体式固定中心轴（18）和包括永磁体（54）的外部转子（49），固定在一般的内表面 圆柱形可旋转外壳部分（18）。 这允许变速操作，同时避免内部齿轮联动的任何需要。 通过在壳体（14）的相应轴向端部处的密封板（76,78）固定而提供安全性，并且围绕每个密封板提供环形周边密封件（90）。 在壳体（14）的每个端部附近的相应的滚动轴承（24,44）有助于外部转子（49）相对于定子（52）的旋转，并且夹紧装置（30）使得轴承的噪声最小化。

公开(公告)号：US20040061392A1

公开(公告)日：2004-04-01

申请号：US10660652

申请日：2003-09-12

申请人： KABUSHIKI KAISHA YASKAWA DENKI

发明人： Kenichi Tachibana ,  Tadataka Noguchi ,  Toshio Omata

IPC分类号： H02K007/00 ,  H02K011/00

CPC分类号： F04D29/122 ,  H02K7/14

摘要： In a vacuuming motor used by being attached to a peripheral edge of a motor attaching hole provided at a vacuum chamber, an end portion on a load side of a motor main body is attached with a reduction gear main body having an attaching flange fixed to the motor attaching hole to interpose an O-ring therebetween and the attaching flange is fixed with vacuum seals and constituted by a resin and brought into contact with an output shaft of the reduction gear main body for partitioning an inner space of the reduction gear main body and the motor main body and an inner space of the vacuum chamber.

摘要翻译： 在设置在真空室的电动机安装孔的周缘使用的真空电动机中，电动机主体的负载侧的端部安装有减速齿轮主体，该减速齿轮主体具有固定到 电动机安装孔在其间插入O形环，并且安装凸缘由真空密封件固定并由树脂构成并与减速装置主体的输出轴接触，用于分隔减速机主体的内部空间，以及 电机主体和真空室的内部空间。

公开(公告)号：US20040036371A1

公开(公告)日：2004-02-26

申请号：US10643922

申请日：2003-08-20

申请人： MINEBEA CO., LTD.

发明人： Oswald Kuwert ,  Juergen Oelsch ,  Kenji Fukunaga

IPC分类号： H02K007/00

CPC分类号： H02K5/02 ,  G11B19/2009 ,  H02K5/24

摘要： If the motor housing 5 is manufactured with a resin, the housing 5 becomes possible to be manufactured by injection molding, so that the housing 5 can be intended to lower the manufacturing cost by a mass production. Further, the counter measures for insulation such as covering a copper wire 7 with an insulating tape, interposing an insulator to an opening 5a of the housing installing an insulating shim between the coil 6a and the housing 5 become unnecessary. As a result, it becomes possible to expect a cost down of the spindle motor due to the reduction of the cost of the parts for insulating members and the mounting processes. And, further, since a vibration transmitted from the rotor 1 through the bearing and a vibration caused by an electric switching of the stator 6 etc. are diminished due to elastic absorbing function of the housing 5, rotation noise of the spindle motor can be reduced.

摘要翻译： 如果用树脂制造电动机壳体5，则可以通过注射成型制造壳体5，从而可以通过大规模生产来降低制造成本。 此外，不需要绝缘的对策措施，例如用绝缘带覆盖铜线7，将绝缘体插入到在线圈6a和壳体5之间安装绝缘垫片的壳体的开口5a。 结果，由于绝缘构件的部件的成本的降低和安装过程，可以预期主轴电机的成本降低。 此外，由于由转子1通过轴承传递的振动和由定子6的电开关引起的振动由于壳体5的弹性吸收功能而减小，因此可以减小主轴电动机的旋转噪声 。

公开(公告)号：US20030218392A1

公开(公告)日：2003-11-27

申请号：US10318990

申请日：2002-12-12

发明人： Ronald Frey ,  Harald Schmidt ,  Johannes Helmich ,  Birgit Scheytt ,  Werner Baeskow

IPC分类号： H02K007/00

CPC分类号： H02K7/1025 ,  H02K5/148 ,  H02K11/215

摘要： An actuating device, specifically for actuating locking differentials on vehicles, having an actuating shaft, a drive unit to drive the actuating shaft, where the drive unit comprises an armature core mounted to the actuating shaft so as not to rotate, and a commutator mounted to the actuating shaft so as not to rotate and/or with an electromagnetic brake unit to slow and/or stop the actuating shaft, where the brake unit includes a brake hub flange mounted on the armature so as not to rotate and having a single- or multi-piece housing tightly enclosing the drive unit and the brake unit, where the free end of the actuating shaft extends from the housing and with a sensor to measure the angle of rotation of the shaft, where the sensor unit includes at least one trigger wheel indirectly coupled to the shaft and at least one sensor scanning the trigger wheel position and coupled indirectly to the housing.

摘要翻译： 具有致动轴的致动装置，用于致动车辆上的锁定差速器，用于驱动致动轴的驱动单元，其中驱动单元包括安装到致动轴以不旋转的电枢铁芯，以及安装到 致动轴，以便不旋转和/或用电磁制动单元减慢和/或停止致动轴，其中制动单元包括安装在电枢上的制动轮毂凸缘，以便不旋转并具有单个或 多片壳体紧密地包围驱动单元和制动单元，其中致动轴的自由端从壳体延伸并且具有用于测量轴的旋转角度的传感器，其中传感器单元包括至少一个触发轮 间接地联接到轴和至少一个传感器扫描触发器轮位置并间接地耦合到壳体。