Rotor for a dynamoelectric machine
    1.
    发明授权
    Rotor for a dynamoelectric machine 有权
    转子用于电动机

    公开(公告)号:US6091168A

    公开(公告)日:2000-07-18

    申请号:US218653

    申请日:1998-12-22

    CPC分类号: H02K1/32 H02K1/24 H02K9/02

    摘要: Losses in efficiency of operation of a dynamoelectric machine as a result of eddy current losses and poor coolant efficiency and/or disruption of the magnetic circuit in a rotor by coolant passages is avoided in a dynamoelectric machine including a stator (18) in which a rotor (16) is journaled. The rotor includes a stack (16) of thin laminations (17) made of a ferromagnetic material to define a rotor body. The rotor body includes a plurality of equally angularly spaced poles (58) separated by recesses (64). Coolant passages (76) located in the rotor at or just radially inward of the base (72) of each pole (58) and substantially radially outward of the rotational axis (56) of the rotor (14) to maximize cooling efficiency of the poles (58) without disrupting the magnetic circuit in the rotor. Slots (80) are placed in the tips (70) of the poles (58) of selected laminations (17) and extend generally radially inward to reduce eddy current losses.

    摘要翻译: 在包括定子(18)的电动机中避免了由于涡流损失和冷却剂效率差和/或由冷却剂通道引起的转子中的磁路的破坏导致的电动机的操作效率的损失,其中转子 (16)记录。 转子包括由铁磁材料制成的薄的叠片(17)的叠层(16),以形成转子体。 转子主体包括由凹部(64)分开的多个等角度间隔的极(58)。 冷却剂通道(76)位于转子的每一极(58)的基部(72)处或位于转子的径向内侧,并且基本上位于转子(14)的旋转轴线(56)的径向外侧,以使极点的冷却效率最大化 (58),而不破坏转子中的磁路。 狭槽(80)被放置在所选择的叠片(17)的极(58)的尖端(70)中,并且大致径向向内延伸以减少涡流损耗。