HIGH TORQUE DENSITY ELECTRICAL MACHINE
    51.
    发明申请
    HIGH TORQUE DENSITY ELECTRICAL MACHINE 有权
    高扭矩密度电机

    公开(公告)号:US20090309442A1

    公开(公告)日:2009-12-17

    申请号:US12138182

    申请日:2008-06-12

    摘要: An electrical machine is provided. The electrical machine includes a rotor comprising an inner rotor having a plurality of inner rotor poles and an outer rotor having a plurality of outer rotor poles. The electrical machine further comprises a stator configured to modulate a magnetic flux and to transmit torque to inner rotor and the outer rotor, the stator comprising a stator core interposed concentrically between the inner rotor and the outer rotor; a multiple of stator windings disposed in a plurality of stator slots, the stator windings configured to form a multiple of stator poles. The stator further comprises a plurality of stator teeth interposed between the plurality of stator slots, wherein an arithmetic sum or difference of twice number of stator teeth and a number of the stator poles equals a number of rotor poles.

    摘要翻译: 提供电机。 电机包括转子,该转子包括具有多个内转子极的内转子和具有多个外转子极的外转子。 该电机还包括定子,该定子构造成调制磁通量并将转矩传递到内转子和外转子,该定子包括同心地插在内转子和外转子之间的定子芯; 设置在多个定子槽中的定子绕组的倍数,所述定子绕组被配置为形成多个定子极。 定子还包括插入在多个定子槽之间的多个定子齿,其中定子齿数量和数量的定数极数的算术和或差等于多个转子极数。

    Sensorless control induction motor rotor slot shapes and fabrication methods
    55.
    发明授权
    Sensorless control induction motor rotor slot shapes and fabrication methods 有权
    无传感器控制感应电动机转子槽形状及制作方法

    公开(公告)号:US06874221B2

    公开(公告)日:2005-04-05

    申请号:US10304673

    申请日:2002-11-27

    摘要: A method for fabricating an induction motor rotor lamination includes using an indexed notching die to punch a plurality of closed rotor slots at different distances from a center point of rotation by punching a first rotor slot, changing the position of a center point of the rotor lamination with respect to the notching die, and punching a second rotor slot. In another embodiment, a plurality of rotor slit patterns are punched using a variable depth indexed notching die including at least two rotor slit punching portions, one being deeper than another, by punching a first rotor slit pattern, changing the depth of closure of the notching die, and punching a second rotor slit pattern with the second rotor slit pattern having a different number of rotor slits than the first. In another embodiment, each rotor slit is open to and off center with respect to its respective rotor slot, and rotor laminations are stacked by positioning some of the rotor laminations in an orientation with is turned over and rotated with respect to others of the rotor laminations; filling the rotor slots and the rotor slits with cage material; and machining outer surfaces of the rotor laminations. In another embodiment, uniformly spaced identical rotor slots are punched and modulation is created by punching a contoured outside diameter or by inserting slot wedges of molded magnetic material.

    摘要翻译: 一种用于制造感应电动机转子叠片的方法,包括使用分度开槽模具通过冲压第一转子槽来冲压与中心旋转中心不同距离的多个闭合转子槽,改变转子叠片的中心点的位置 相对于切口模具,并冲压第二转子槽。 在另一个实施例中,使用可变深度指数的切口模具冲切多个转子狭缝图案,所述切割凹口包括至少两个转子狭缝冲压部分,一个比另一个更深,通过冲压第一转子狭缝图案,改变开槽的闭合深度 模具,并且冲压第二转子狭缝图案,其中第二转子狭缝图案具有与第一转子狭缝图案不同数量的转子狭缝。 在另一个实施例中,每个转子狭缝相对于其相应的转子槽开放至中心,并且转子叠片通过将一些转子叠片定位成相对于转子叠片的其它部分翻转并旋转的方向而被堆叠 ; 用保持架材料填充转子槽和转子槽; 并加工转子叠片的外表面。 在另一个实施例中,打孔均匀间隔相同的转子槽,并通过冲压成形外径或通过插入模制磁性材料的槽楔形成调制。