公开(公告)号：US06191517B1

公开(公告)日：2001-02-20

申请号：US09309516

申请日：1999-05-10

Applicant: Alexander Radovsky

Inventor： Alexander Radovsky

IPC: H02K1900

CPC classification number: H02K1/08 ,  H02K1/24 ,  H02K19/103 ,  H02K19/20 ,  H02K19/24 ,  H02K21/12 ,  H02K21/24 ,  H02K37/02 ,  H02K2201/12

Abstract: A brushless synchronous electrical machine includes a rotor rotating about a rotor axis, and a stator that includes at least one set of magnetically active stator cores projecting radially outward from the axis, and that also includes magnetically interactive crossbars on the radially outward ends of the stator cores. The rotor includes one or more magnetically active projections that sweep past the radially inward facing surfaces of the crossbars as the rotor rotates. Preferably, there are two sets of stator cores, displaced axially and staggered azimuthally with respect to each other. Stator windings are wound toroidally about the stator cores. The rotor is provided with a magnetic field, preferably by electrical current in one or more axial windings wound toroidally with respect to the rotor axis.

Abstract translation: 无刷同步电机包括围绕转子轴线旋转的转子和包括从轴线径向向外突出的至少一组磁性有效定子铁芯的定子，并且还包括在定子的径向外端上的磁性交互式横杆 核心。 转子包括一个或多个磁力活动的突起，当转子旋转时，它们经过横杆的径向向内的表面扫过。 优选地，存在两组定子芯，其相对于彼此在轴向方位角交错排列。 定子绕组环绕环绕定子铁心缠绕。 转子设置有磁场，优选地通过在相对于转子轴线环形地卷绕的一个或多个轴向绕组中的电流。

公开(公告)号：US6100620A

公开(公告)日：2000-08-08

申请号：US148989

申请日：1998-09-08

Applicant: Alexander Radovsky

Inventor： Alexander Radovsky

IPC: H02K1/08 ,  H02K1/24 ,  H02K19/10 ,  H02K19/20 ,  H02K19/24 ,  H02K21/24 ,  H02K37/02 ,  H02K1/22

CPC classification number: H02K1/08 ,  H02K1/24 ,  H02K19/103 ,  H02K19/20 ,  H02K19/24 ,  H02K21/24 ,  H02K37/02

Abstract: A synchronous rotary electrical machine. According to the first aspect of the present invention, the electrical phase difference between the stator teeth and the nearest rotor teeth is a stepwise function of azimuthal stator tooth position. In a preferred embodiment of the present invention, the stator teeth grouped into two or more sets, and the machine is multiphase. Each set is associated with an armature winding wound in a plane perpendicular to the rotational axis of the machine. The rotor teeth are spaced at the same pitch as the stator teeth of a single set. When direct electrical current is provided to an excitation winding concentric with the rotational axis, an m-phase alternating EMF is induced in the armature windings. With two tandem groups of such sets of stator teeth, each with its own tooth pitch, alternating EMFs of different frequencies are generated. Two alternating EMFs of different frequencies are heterodyned to provide alternating EMF at the difference frequency. According to the second aspect of the present invention, the rotor and the stator are axially adjacent, and the facing rotor and stator teeth are at the same radial distance from the rotational axis. If the machine is single phase, there are equal numbers of facing rotor and stator teeth. If a rotor is between two sets of stator teeth, the two sets can have different numbers of teeth, allowing the generation of alternating EMFs of different frequencies, and the heterodyning thereof to provide alternating EMF at the difference frequency.

Abstract translation: 同步旋转电机。 根据本发明的第一方面，定子齿和最近的转子齿之间的电相位差是方位定子齿位置的逐步函数。 在本发明的优选实施例中，定子齿分为两组或多组，机器是多相。 每个组与在垂直于机器的旋转轴线的平面中缠绕的电枢绕组相关联。 转子齿以与单组定子齿相同的间距分开。 当向与旋转轴线同心的励磁绕组提供直接电流时，在电枢绕组中感应出m相交变EMF。 通过两组这样的定子齿组合，每组具有自己的齿距，产生不同频率的交替EMF。 两个不同频率的交替EMF被外差以提供差频时的交替EMF。 根据本发明的第二方面，转子和定子轴向相邻，并且相对的转子和定子齿与旋转轴线处于相同的径向距离。 如果机器是单相，则有相等数量的面向转子和定子齿。 如果转子位于两组定子齿之间，则两组齿可以具有不同数量的齿，允许产生不同频率的交替EMF，并且其外差以提供差频的交替EMF。

公开(公告)号：US5952759A

公开(公告)日：1999-09-14

申请号：US947862

申请日：1997-10-09

Applicant: Alexander Radovsky

Inventor： Alexander Radovsky

IPC: H02K1/06 ,  H02K1/08 ,  H02K1/24 ,  H02K19/10 ,  H02K19/20 ,  H02K19/24 ,  H02K19/26 ,  H02K21/24 ,  H02K37/02 ,  H02K37/04 ,  H02K1/00

CPC classification number: H02K1/24 ,  H02K1/08 ,  H02K19/103 ,  H02K19/20 ,  H02K19/24 ,  H02K21/24 ,  H02K37/02

Abstract: A brushless synchronous rotary electrical machine comprises stationary stator and "inner" windings. Only the rotor moves. The inner windings are stationary helical windings, concentric with the rotor shaft and attached to the stator armature. Variation in time of the magnetic field associated with the rotor is provided by two magnetically interactive (ferromagnetic or ferrimagnetic) rotor projections that sweep past the sides of the inner windings as the shaft rotates, each projection including a certain number of lobes. The stator includes a magnetically active hub, within which the rotor rotates, from which project magnetically active stator cores. The stator windings are wound helically around the stator cores. Because all windings are stationary, brushes and rings are not needed. With three times as many stator cores as lobes in each projection, the machine functions as a three-phase generator. In an alternative embodiment, permanent magnets in the rotor projections are used instead of the inner windings to provide the magnetic field.

Abstract translation: 无刷同步旋转电机包括固定定子和“内”绕组。 只有转子移动。 内绕组是固定螺旋绕组，与转子轴同心并连接到定子电枢。 与转子相关的磁场的时间变化由两个磁性相互作用（铁磁或亚铁磁）转子突起提供，当转轴旋转时，它们经过内侧绕组的侧面扫过，每个突起包括一定数量的凸角。 定子包括一个磁性有效的轮毂，转子在其中旋转，由此可以计算出磁性活动的定子铁芯。 定子绕组绕定子芯螺旋地缠绕。 因为所有的绕组都是固定的，所以不需要刷子和环。 在每个投影中，定子铁心的数量是波瓣的三倍，机器作为三相发电机。 在替代实施例中，使用转子突起中的永磁体代替内绕组以提供磁场。

公开(公告)号：US5798594A

公开(公告)日：1998-08-25

申请号：US823671

申请日：1997-03-24

Applicant: Alexander Radovsky

Inventor： Alexander Radovsky

IPC: H02K1/06 ,  H02K1/08 ,  H02K1/24 ,  H02K19/10 ,  H02K19/20 ,  H02K19/24 ,  H02K19/26 ,  H02K21/24 ,  H02K37/02 ,  H02K37/04 ,  H02K1/00 ,  H02K3/00 ,  H02K21/00

CPC classification number: H02K1/08 ,  H02K1/24 ,  H02K19/103 ,  H02K19/20 ,  H02K19/24 ,  H02K21/24 ,  H02K37/02

Abstract: A brushless synchronous rotary electrical machine comprises stationary stator and "rotor" windings. Only the rotor moves. The rotor winding is a stationary helical winding, concentric with the rotor shaft and attached to the stator armature. Variation in time of the magnetic field associated with the rotor is provided by one or more magnetically interactive (ferromagnetic or ferrimagnetic) projections from the rotor that sweep past the sides of the rotor winding as the shaft rotates. Because all windings are stationary, brushes and rings are not needed. The geometries of the rotor, of the stator windings, and of the magnetically interactive part of the stator armature are arranged so that the entire length of the wire in the windings participates in the generation of AC current (in a generator) or torque (in a motor), and so that loss of power to eddy currents is minimized. In preferred embodiments of the machine as a generator, the geometries of the rotor and of the stator armature are chosen to ensure that the magnetic field through the AC winding changes sign cyclically.

Abstract translation: 无刷同步旋转电机包括固定定子和“转子”绕组。 只有转子移动。 转子绕组是固定的螺旋绕组，与转子轴同心并连接到定子电枢。 与转子相关联的磁场的时间变化由一个或多个来自转子的磁性相互作用（铁磁或亚铁磁性）突起提供，当转轴旋转时，转子绕过转子绕组的侧面。 因为所有的绕组都是固定的，所以不需要刷子和环。 转子，定子绕组和定子电枢的磁性相互作用部分的几何形状被布置成使得绕组中的导线的整个长度参与产生交流电流（在发电机中）或转矩（在 电动机），并且使得对涡流的功率损失最小化。 在作为发电机的机器的优选实施例中，选择转子和定子电枢的几何形状以确保通过AC绕组的磁场循环变化。