Stator for rotary electric machine

    公开(公告)号:US10658897B2

    公开(公告)日:2020-05-19

    申请号:US15680459

    申请日:2017-08-18

    Abstract: A stator for a rotary electric machine includes a stator core defining multiple slots, and a stator coil including multiple phase windings each of which is connected to a corresponding phase of a power source. Each phase winding includes multiple conductors that are inserted into the slots, connected to adjacent conductors in series, and spaced apart from the adjacent conductors by multiple slot pitches, unit patterns each of which includes some of conductors, and a bridge conductor connecting the unit patterns to each other in series by connecting a pair of conductors arranged in an innermost layer of corresponding slots. Each first conductor of each phase winding is connected to a power line and arranged in an outermost layer of one of the multiple slots.

    Stator for electric rotating machine

    公开(公告)号:US11063488B2

    公开(公告)日:2021-07-13

    申请号:US16539069

    申请日:2019-08-13

    Abstract: The present disclosure relates to a stator for an electric rotating machine, the stator comprising a stator core comprising teeth and slots, and a stator coil comprising a plurality of hairpins configured to be inserted into the slots of the stator core in a predetermined pattern. Each of the plurality of hairpins comprises a conductor and a coating layer surrounding an outer surface of the conductor. The plurality of hairpins comprise a first hairpin configured to be placed in a first section of the stator coil predetermined from an end to which power is to be input, and a second hairpin placed in a section after the first section. The first hairpin provides better insulation performance than the second hairpin, and the first section has a higher voltage distribution ratio than the section including the second hairpin.

Patent Agency Ranking