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    • 23. 发明授权
    • Multi-set rectangular copper hairpin windings for electric machines
    • 用于电机的多组矩形铜发夹绕组
    • US06894417B2
    • 2005-05-17
    • US10438429
    • 2003-05-15
    • Wei CaiDavid FultonChristopher L. Congdon
    • Wei CaiDavid FultonChristopher L. Congdon
    • H02K3/12H02K3/14H02K3/28H02K3/50
    • H02K3/12H02K3/14H02K3/28H02K3/50
    • An electric machine having multi-set rectangular copper hairpin windings comprises a stator having a plurality of partially closed stator slots. A first winding set and a second winding set are positioned in the stator slots. The first winding set and the second winding set are connected by adjacent leg ends. According to a first embodiment, conductor layers in alternate slots alternate between different phases. The conductor layers in the remaining slots are all of the same phase. Hairpins having unequal length legs are used to implement the first embodiment. According to a second embodiment, conductor layers in alternate slots include one phase for the first winding set and another phase for the second winding set. The conductor layers in the remaining slots are all of the same phase. Hairpins having equal length legs are used to implement the second embodiment.
    • 具有多组矩形铜发夹绕组的电机包括具有多个部分闭合的定子槽的定子。 第一绕组组和第二绕组组定位在定子槽中。 第一绕组和第二绕组由相邻的腿端连接。 根据第一实施例,替代槽中的导体层在不同相之间交替。 剩余插槽中的导体层全部相同。 使用具有不等长度的腿的发夹来实现第一实施例。 根据第二实施例,交替槽中的导体层包括用于第一绕组的一相和用于第二绕组的另一相。 剩余插槽中的导体层全部相同。 使用具有相同长度腿的发夹来实现第二实施例。