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公开(公告)号：US06433536B1
公开(公告)日：2002-08-13
申请号：US09223943
申请日：1998-12-31
IPC分类号： G01B730
CPC分类号： G01D5/145
摘要： The present invention is an apparatus for indicating the instantaneous position of a movable member along a range of motion with respect to a reference position. The apparatus includes a magnetic body that is fixedly attached to the movable member. The body has a contoured surface to control the shape of a magnetic field relative to position, and further includes at least two magnetic field sensors. Each of the sensors is disposed adjacent to the contoured surface of the magnetic body and fixed with respect to the reference position, and is positioned apart from the other sensors, so as to form a non-uniform gap between the contoured surface and each of the magnetic field sensors. Each of the sensors produces a position dependent signal corresponding to a value of the magnetic field. The apparatus further includes a decoding circuit electrically coupled to each of the magnetic field sensors so as to receive each of the position dependent signals. The decoding circuit produces a position dependent signal that is a predetermined function of the position dependent signals. Multiple sensors can be utilized to provide redundancy. Further, the apparatus can provide measurement correction of measurement errors caused by incorrect location of the magnetic field sensors.
摘要翻译： 本发明是一种用于指示可移动部件相对于基准位置的运动范围的瞬时位置的装置。 该装置包括固定在可移动部件上的磁体。 主体具有轮廓表面以相对于位置控制磁场的形状，并且还包括至少两个磁场传感器。 每个传感器设置成与磁体的轮廓表面相邻并且相对于参考位置固定，并且与其它传感器分开定位，以便在轮廓表面和每个传感器之间形成不均匀的间隙 磁场传感器。 每个传感器产生对应于磁场值的与位置相关的信号。 该装置还包括电耦合到每个磁场传感器以便接收每个位置相关信号的解码电路。 解码电路产生位置相关信号，该位置相关信号是位置相关信号的预定函数。 可以利用多个传感器来提供冗余。 此外，该装置可以提供由磁场传感器的不正确位置引起的测量误差的测量校正。
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公开(公告)号：US5929549A
公开(公告)日：1999-07-27
申请号：US54062
申请日：1998-04-02
申请人： Bradley A. Trago , Robert E. Lordo
发明人： Bradley A. Trago , Robert E. Lordo
摘要： An electric machine, such as a motor or a generator, comprises a stator having a plurality of stator poles defining a plurality of slots, a rotor positioned within the stator, and at least a two sets of stator windings wound on the stator poles and occupying said stator slots such that the boundary windings of each set of stator windings occupies a common slot. These boundary windings of each set of stator windings are non-overlapping and include insulation positioned between them. The sets of stator windings are wound on the stator poles in a single pitch winding configuration significantly reducing the number of wire crossings resulting. In particular, the endturns defined by the individual phase coils are non-intersecting. Such a machine provides continued operation under various fault conditions.
摘要翻译： 诸如电动机或发电机的电机包括具有限定多个槽的多个定子极的定子，位于定子内的转子以及缠绕在定子极上的至少两组定子绕组并占据 所述定子槽使得每组定子绕组的边界绕组占据公共槽。 每组定子绕组的这些边界绕组是不重叠的，并且包括位于它们之间的绝缘体。 这些定子绕组以单个节距绕组构造缠绕在定子极上，大大减少了导致的导线交叉的数量。 特别地，由各个相线圈限定的端点是不相交的。 这种机器在各种故障条件下提供持续的操作。
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公开(公告)号：US4453097A
公开(公告)日：1984-06-05
申请号：US413935
申请日：1982-09-01
申请人： Robert E. Lordo
发明人： Robert E. Lordo
摘要： A motor frame and stator assembly (20), (27), for a permanent magnet direct current motor is shown which is characterized by accommodating a larger and more powerful armature (12) relative to the interior and exterior dimensions of the frame (20). The assembly (20), (27) includes a metal frame (20) having a pre-determined length and continuous walls the inner surface of which define a void (24). A plurality of arcuate, recessed seats (25) is formed into the inner walls of the frame (20) in spaced-apart intervals around and extending along at least a part of the length of the frame (20). The walls of the frame (20) along the extent of the seats (25) are of reduced cross-sectional thickness. A plurality of permanent magnets (27) having a convex and concave side are mounted by the convex side against one of the plurality of seats (25). A permanent magnet DC motor (10) constructed of one or more metal frame modules (20) is also disclosed.
摘要翻译： 示出了用于永磁直流电动机的电动机框架和定子组件（20）（27），其特征在于，相对于框架（20）的内部和外部尺寸容纳更大且更强大的电枢（12） 。 组件（20），（27）包括具有预定长度和连续壁的金属框架（20），其内表面限定空隙（24）。 沿着框架（20）的长度的至少一部分围绕并沿其延伸的多个弧形凹入的座（25）以间隔开的间隔形成在框架（20）的内壁中。 框架（20）沿着座（25）的范围的壁具有减小的横截面厚度。 具有凸形和凹形侧面的多个永磁体（27）通过凸面安装在多个座（25）中的一个上。 还公开了由一个或多个金属框架模块（20）构成的永磁直流电动机（10）。
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公开(公告)号：US08680730B2
公开(公告)日：2014-03-25
申请号：US13175296
申请日：2011-07-01
申请人： Robert E. Lordo
发明人： Robert E. Lordo
IPC分类号： H02K7/20
CPC分类号： H02K3/28 , H02K5/225 , H02K11/21 , H02K11/25 , H02K11/33 , H02K16/04 , H02K2213/09 , H02K2213/12
摘要： A low voltage high horsepower brushless motor assembly including a plurality of axially aligned and interconnected stator module sections, a plurality of rotor modules mounted upon a common shaft corresponding to the plurality of stator module sections, and a single rotor position feedback encoder operating the motor, wherein each of the individual stator modules include multiple phase winding circuits terminating in a plurality of studs located on an exterior of their respective housings for interconnection with a plurality of controllers.
摘要翻译： 一种低电压高功率无刷电动机组件，包括多个轴向对准和互连的定子模块部分，多个转子模块安装在对应于多个定子模块部分的公共轴上，以及单个转子位置反馈编码器， 其中每个单个定子模块包括多个相绕组电路，其终止于位于其各自壳体的外部上的多个螺柱，用于与多个控制器互连。
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公开(公告)号：US5798596A
公开(公告)日：1998-08-25
申请号：US718046
申请日：1996-07-03
申请人： Robert E. Lordo
发明人： Robert E. Lordo
摘要： A permanent magnet motor with enhanced inductance which comprises a motor frame having annular inner walls defining a void therein and a stator mounted on and extending around the periphery of the inner walls of the frame in the void in the motor frame. The stator includes windings positioned thereon for developing current from power supplied to the motor, the innermost portion of the stator defining a radial inner portion of the void. A rotor is mounted in the void radially inwardly of the stator for concentric rotation in the motor frame in closely spaced-apart relation to the stator. The rotor has an iron core for air gap flux interaction with the stator, and the rotor has a magnet zone and a lamination zone extending axially along the length of the rotor. The magnet zone has a permanent magnet positioned on the rotor and projecting therefrom for interaction with the windings on the stator to produce magnetic-field induced torque for rotating the rotor. The lamination zone has a plurality of stacked laminations positioned on the rotor for rotation therewith, the lamination zone being adjacent to the magnet zone and devoid of magnets. The laminations extend from the rotor shaft into closely spaced-apart radial alignment with a portion of the windings and forming an area of decreased air gap and increased inductance between the stator and the rotor.
摘要翻译： 一种具有增强的电感的永磁电动机，其包括具有限定空隙的环形内壁的电动机框架和在电动机框架的空隙中安装在框架的内壁的周边上并在其周围延伸的定子。 定子包括定位在其上的绕组，用于从供应到电动机的功率显影电流，定子的最内部分限定空隙的径向内部。 转子安装在定子的径向向内的空隙中，用于与电动机框架中与定子紧密间隔开的同心旋转。 转子具有用于与定子的气隙磁通相互作用的铁芯，并且转子具有磁体区域和沿着转子的长度轴向延伸的层压区域。 磁体区域具有定位在转子上的永磁体，并从其上突出，用于与定子上的绕组相互作用，以产生用于旋转转子的磁场感应扭矩。 层压区域具有多个层叠的叠片，位于转子上以与其一起转动，层压区域与磁体区域相邻并且没有磁体。 叠片从转子轴延伸到与一部分绕组紧密分开的径向对准，并形成减小气隙的面积，并增加定子和转子之间的电感。
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公开(公告)号：US4908558A
公开(公告)日：1990-03-13
申请号：US184818
申请日：1988-04-22
IPC分类号： B64G7/00 , G01C25/00 , G09B9/12 , H02K7/09 , H02K41/025
CPC分类号： G01C25/00 , B64G7/00 , G09B9/12 , H02K41/025 , H02K7/09 , B64G2007/005 , G05G2009/04766 , H02K2201/18 , Y10T74/12 , Y10T74/1275
摘要： A flight motion simulator includes a unit under test supported on a stationary frame for angular and translational movement along pitch, roll, and yaw axes. A rotor element is secured to the unit under test and has a spherical configuration. Magnetic bearings supported by the stationary frame support the rotor element in three degrees of freedom of movement. A drag-cup induction motor is mounted on the frame and connected to the unit under test to generate three degrees of freedom of movement by generating a rotating magnetic flux in a stator assembly to induce a corresponding flow of currents in the rotor element to produce torque and motion in the unit under test in the same direction as the flux movement in the stator assembly.
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公开(公告)号：US4839547A
公开(公告)日：1989-06-13
申请号：US174228
申请日：1988-03-28
申请人： Robert E. Lordo , Walter E. Rudisch
发明人： Robert E. Lordo , Walter E. Rudisch
摘要： A frame for an electric machine characterized by increased cooling capacity. An integral frame member has a pre-determined length defined by outer walls and inner walls, the inner walls defining a through void within which to accommodate stationary and rotating parts of the machine. A multitude of closely spaced-apart outer fins are integrally-formed with and project outwardly from the outer walls of the frame member for convection cooling of the frame by fluid contact iwth the enlarged surface areas of the fins. A multitude of closely spaced-apart inner fins are integrally-formed with and project inwardly from the inner walls of the frame member into the void defined thereby for convection cooling of the frame and the stationary and rotating parts of the machine within the frame by convection cooling by fluid contact with the enlarged surface area of the fins. The innermost ends of the fins are adapted to support thereon the stationary parts of the machine.
摘要翻译： 一种电机的框架，其特征在于增加了冷却能力。 整体框架构件具有由外壁和内壁限定的预定长度，内壁限定通孔，以容纳机器的固定和旋转部件。 多个紧密间隔开的外翅片与框架构件的外壁一体地形成并向外突出，用于通过与翅片的扩大表面区域的流体接触进行对流冷却。 多个紧密间隔开的内翅片与框架构件的内壁一体地形成并向内突出到由其限定的空隙中，从而通过对流来对框架和框架内机器的静止和旋转部件进行对流冷却 通过与翅片的扩大表面积的流体接触来冷却。 翅片的最内端适于在其上支撑机器的固定部分。
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公开(公告)号：US4631510A
公开(公告)日：1986-12-23
申请号：US771815
申请日：1985-09-03
申请人： Ashok Nagarkatti , Robert E. Lordo , Burkhart Kind
发明人： Ashok Nagarkatti , Robert E. Lordo , Burkhart Kind
摘要： This invention relates to a harmonically graded airgap reluctance-type rotating electric resolver. The magnetic permeance of the airgap is made to vary sinusoidally. Therefore, only the fundamental wave exists, free of higher harmonics. The invention has application in numerous fields, including commutation of brushless motors and to precisely position machinery tools relative to work pieces in numerically controlled machines.
摘要翻译： 本发明涉及一种谐波梯度气隙磁阻型旋转电解分解器。 使气隙的磁导率正弦曲线变化。 因此，只有基波存在，没有高次谐波。 本发明可应用于许多领域，包括无刷电动机的换向和相对于数控机床中的工件精确定位机械工具。
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9.发明授权Frame module for forming tubular frame of permanent magnet direct current motor 失效用于形成永磁直流电机的管状框架的框架模块
公开(公告)号：US4529902A
公开(公告)日：1985-07-16
申请号：US413867
申请日：1982-09-01
申请人： Robert E. Lordo
发明人： Robert E. Lordo
摘要： A frame (14) for a permanent magnet direct current motor (10) is formed of a plurality of frame modules (15). Each frame module (15) is of equal axial length and cross-sectional dimensions for being matingly connected together end-to-end to form the tubular frame (14) to a desired length.
摘要翻译： 用于永磁直流电动机（10）的框架（14）由多个框架模块（15）形成。 每个框架模块（15）具有相同的轴向长度和横截面尺寸，用于端对端配合地连接在一起以形成所需长度的管状框架（14）。
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