公开(公告)号：WO2010014647A3

公开(公告)日：2010-04-22

申请号：PCT/US2009052012

申请日：2009-07-28

Applicant: DIRECT DRIVE SYSTEMS INC ,  SABAN DANIEL M ,  GUEDES-PINTO PAULO ,  STOUT JOHN

Inventor： SABAN DANIEL M ,  GUEDES-PINTO PAULO ,  STOUT JOHN

IPC: H02K1/12 ,  H02K1/16

CPC classification number: H02K3/487 ,  H02K1/02 ,  H02K1/165 ,  H02K3/12 ,  H02K3/24 ,  H02K3/28 ,  H02K3/50 ,  H02K5/1285 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: In one aspect, a stator core for a stator of an electrical machine includes an elongate stator yoke having an interior surface that defines an axial central opening through the stator yoke. The interior surface further defines a plurality of axial channels about a perimeter of the central opening. A plurality of stator teeth are retained in the plurality of axial channels and spaced apart from one another to define to define axial channels to receive windings of the stator. In another aspect, a stator includes an elongate core defining an inner volume to receive a rotor of an electric machine. The core includes a yoke and an array of teeth extending from the yoke toward the inner volume. The array of teeth defines slots between each pair of adjacent teeth in the array. Each slot includes a first slot region adapted to hold at least a portion of a conductive winding and a second slot region adapted to hold at least a portion of a conductive winding. The first slot region is defined by two non-parallel opposing slot side portions, and the second slot region is defined by two parallel opposing slot side portions. In another aspect, an electric machine may include a central opening and a plurality of teeth facing inwardly toward the central opening. Slots may be defined between adjacent teeth, and a wedge may be disposed in one or more of the slots, partitioning the slots into a coils portion and an open portion. A gap may be defined between the stator core and the rotor. A fluid flow path defined from the gap and the open portions of the slots provide for improved fluid flow through the electric machine. Wedges disposed in the slots maintain the coils into a packed state.

Abstract translation: 在一个方面，用于电机的定子的定子芯包括具有内表面的细长定子轭，该内表面限定了穿过定子轭的轴向中央开口。 内表面还围绕中心开口的周边限定多个轴向通道。 多个定子齿保持在多个轴向通道中并且彼此间隔开以限定轴向通道以接收定子的绕组。 另一方面，定子包括限定内部容积的细长芯以接收电机的转子。 芯包括轭和从轭朝向内部体积延伸的一排齿。 齿阵列限定阵列中每对相邻齿之间的槽。 每个槽包括适于保持导电绕组的至少一部分的第一槽区域和适于保持导电绕组的至少一部分的第二槽区域。 第一槽区域由两个不平行的相对槽侧部限定，并且第二槽区由两个平行的相对槽侧部限定。 另一方面，电机可以包括中央开口和朝向中央开口向内面向的多个齿。 槽可以被限定在相邻的齿之间，并且楔可以被设置在一个或多个槽中，将槽分成线圈部分和开口部分。 定子铁芯和转子之间可以限定间隙。 由间隙和狭槽的开口部分限定的流体流动路径提供了改善的流过电机的流体流动。 设置在槽中的楔形物将线圈保持在包装状态。

公开(公告)号：WO2010014640A3

公开(公告)日：2010-05-14

申请号：PCT/US2009052005

申请日：2009-07-28

Applicant: DIRECT DRIVE SYSTEMS INC ,  SABAN DANIEL M ,  STOUT JOHN ,  KRISHNAN VENKATESHWARAN ,  STROUSE DENNIS ,  GUEDES-PINTO PAULO ,  IVASCHENKO ALEX ,  PETROV PETER

Inventor： SABAN DANIEL M ,  STOUT JOHN ,  KRISHNAN VENKATESHWARAN ,  STROUSE DENNIS ,  GUEDES-PINTO PAULO ,  IVASCHENKO ALEX ,  PETROV PETER

IPC: H02K1/27 ,  F04B39/00 ,  H02K1/12

CPC classification number: H02K5/132 ,  H02K1/278 ,  H02K5/1285

Abstract: An electric machine system includes an electric machine and a companion device. The electric machine has a stationary member and a movable member that, by interaction of magnetic fields, at least one of moves relative to the stationary member or generates electricity when moved relative to the stationary member. One of the stationary member and the movable member includes a permanent magnet. The companion device is coupled to the electric machine to communicate mechanical movement with the movable member. In certain instances, the electric machine system has adaptations for operation of the electric machine system subsea and/or in a corrosive environment. In certain instances, a first composite sleeve resides around the moveable member. In some instances, the first sleeve includes a primarily axially-oriented outer layer and a primarily circumferentially-oriented intermediate layer beneath the outer layer. In other instances, the intermediate layer of the first sleeve includes a plurality of discrete, non-overlapping circumferential bands of composite material. In some instances, a portion of the first sleeve can have a coefficient of thermal expansion that is substantially equal to the aggregate coefficient of thermal expansion of the moveable member. In certain instances, a second sleeve can be formed from a metal tape wrapped over the first sleeve.

Abstract translation: 电机系统包括电机和伴随装置。 电机具有静止部件和可动部件，该静止部件和可动部件通过磁场的相互作用相对于固定部件移动中的至少一个，或者当相对于静止部件移动时产生电力。 固定构件和可动构件中的一个包括永磁体。 伴侣装置联接到电机以与可动构件进行机械运动。 在某些情况下，电机系统具有用于海底电机系统的操作和/或在腐蚀性环境中的适应性。 在某些情况下，第一复合套筒位于可移动构件周围。 在一些情况下，第一套筒包括主要轴向取向的外层和位于外层下方的主要周向取向的中间层。 在其他情况下，第一套筒的中间层包括复合材料的多个离散的，不重叠的周向带。 在一些情况下，第一套筒的一部分可以具有基本上等于可动构件的总体热膨胀系数的热膨胀系数。 在某些情况下，第二套筒可以由缠绕在第一套筒上的金属带形成。

公开(公告)号：WO2010014642A3

公开(公告)日：2010-04-22

申请号：PCT/US2009052007

申请日：2009-07-28

Applicant: DIRECT DRIVE SYSTEMS INC ,  SABAN DANIEL M ,  STOUT JOHN ,  GUEDES-PINTO PAULO

Inventor： SABAN DANIEL M ,  STOUT JOHN ,  GUEDES-PINTO PAULO

IPC: H02K1/12 ,  H02K3/18

CPC classification number: H02K3/487 ,  H02K1/02 ,  H02K1/165 ,  H02K3/12 ,  H02K3/24 ,  H02K3/28 ,  H02K3/50 ,  H02K5/1285 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: In one aspect, a stator for an electric machine includes multiple conductive coils. Each coil defines a loop that extends axially through the elongate core, exits the core through an end face, and reenters the core through the end face. A first subset of the coils collectively form a first radial layer axially exterior the core and a third radial layer axially exterior the core. Each coil in the first subset resides in both the first layer and the third layer. A second subset of the coils collectively forms a second radial layer axially exterior the core and a fourth radial layer axially exterior the core. Each coil in the second subset resides in both the second layer and the fourth layer. In another aspect, an electric machine includes a stator that carries a conductive winding having multiple coils. A first subset of the coils are in a first configuration, and a second subset of the coils are in a second configuration. In some implementations, the first configuration is a lap winding configuration, and the second configuration is a concentric winding configuration.

Abstract translation: 在一个方面，用于电机的定子包括多个导电线圈。 每个线圈限定一个循环，该循环沿轴向延伸穿过细长芯体，通过端面离开芯体，并且通过端面重新进入芯体。 线圈的第一子集共同形成轴向在芯外部的第一径向层和轴向在芯外部的第三径向层。 第一个子集中的每个线圈都位于第一层和第三层。 线圈的第二子集共同形成轴向位于核心外的第二径向层和轴向位于核心外部的第四径向层。 第二子集中的每个线圈都驻留在第二层和第四层中。 另一方面，电机包括承载具有多个线圈的导电绕组的定子。 线圈的第一子集处于第一配置，并且线圈的第二子集处于第二配置。 在一些实施方式中，第一配置是重叠绕组配置，并且第二配置是同心绕组配置。

公开(公告)号：WO2010014646A2

公开(公告)日：2010-02-04

申请号：PCT/US2009052011

申请日：2009-07-28

Applicant: DIRECT DRIVE SYSTEMS INC ,  SABAN DANIEL M

Inventor： SABAN DANIEL M

IPC: H02K1/27 ,  H02K1/22

CPC classification number: H02K3/487 ,  H02K1/02 ,  H02K1/165 ,  H02K3/12 ,  H02K3/24 ,  H02K3/28 ,  H02K3/50 ,  H02K5/1285 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: A rotor for an electrical machine includes a rotor hub and a plurality of permanent magnet segments affixed around a perimeter of the rotor hub. In certain instances, the segments have rounded outer surfaces and form a cylindrical outer surface of the rotor when mounted to the rotor hub. Permanent magnets are selected to construct a rotor with a particular magnetic field. In certain instances, the segments include a first plurality of the permanent magnet segments and at least one multi-piece permanent magnet segment including at least two pieces, each piece having a smaller arcuate span than segments in the first plurality of segments, the magnetization direction vector of one piece different than the magnetization direction vector of at least one other piece in each multi-piece segment. In certain instances, the plurality of segments include primary magnet segments and interpole magnet segments defining two or more poles, the segments having a uniformly oriented direction vector component. In certain instances, segments in a two-pole rotor configuration have direction vector components substantially parallel and oriented in substantially the same direction.

Abstract translation: 用于电机的转子包括转子毂和固定在转子毂的周边周围的多个永磁体段。 在某些情况下，这些段具有圆形的外表面并且当安装到转子毂时形成转子的圆柱形外表面。 选择永磁体来构造具有特定磁场的转子。 在某些情况下，所述段包括第一多个永磁体段和至少一个多片永磁体段，至少包括至少两个片段，每个片段具有比第一多个段中的段更小的弓形跨距，磁化方向 每个多片段中的至少一个其它片的磁化方向矢量不同的一个矢量。 在某些情况下，多个段包括限定两个或多个极的主磁体段和极点磁体段，段具有均匀定向的方向向量分量。 在某些情况下，双极转子结构中的段具有基本上平行并且基本相同方向定向的方向矢量分量。

公开(公告)号：WO2008057789A2

公开(公告)日：2008-05-15

申请号：PCT/US2007082541

申请日：2007-10-25

Applicant: DIRECT DRIVE SYSTEMS INC ,  SABAN DANIEL M ,  AHMAD RAED H ,  PAN ZHIGUO

Inventor： SABAN DANIEL M ,  AHMAD RAED H ,  PAN ZHIGUO

IPC: H02K3/47 ,  H02K3/32

CPC classification number: H02K3/28 ,  B60L2200/32 ,  B60L2220/56 ,  H02K11/33 ,  H02K16/04 ,  H02K17/12 ,  H02K21/48 ,  H02P29/50 ,  Y02T10/641 ,  Y02T10/642

Abstract: An exemplary power system may include an electric machine with multiple sets of stator windings, each set of windings being coupled through a separate switch matrix to a common voltage bus, and each of which may be spatially arranged in full pitch around the stator such that stator flux harmonics are substantially reduced. The reduced stator flux harmonics may be associated with phase current harmonic content. In an example application, such power systems may operate in a generating mode to transfer mechanical energy to electrical energy on a DC voltage bus. In some illustrative embodiments, the power system may provide both high-power and high-speed (e.g., 1MW at 8000 rpm or above) motoring and/or generating capability suitable, for example, for on-board (e.g., marine, aviation, traction) power systems.

Abstract translation: 示例性动力系统可以包括具有多组定子绕组的电机，每组绕组通过单独的开关矩阵耦合到公共电压母线，并且每个绕组可以以全节距围绕定子在空间上布置，使得定子 磁通谐波显着减少。 降低的定子磁通谐波可以与相电流谐波含量相关联。 在示例应用中，这样的电力系统可以在发电模式下操作，以将机械能量转移到DC电压总线上的电能。 在一些说明性实施例中，电力系统可提供例如适用于机载（例如，船舶，航空，航空等）的高功率和高速（例如，8000rpm或以上的1MW）驱动和/ 牵引）动力系统。