Stator coil for high power density and efficiency electric machines

    公开(公告)号:US11632006B2

    公开(公告)日:2023-04-18

    申请号:US16859984

    申请日:2020-04-27

    Abstract: In one embodiment, a stator coil that includes a first turn with two or more strands is provided. The first turn includes first and second opposite sides, a coil termination at a first end of the first turn and an inversion region disposed at a second end, opposite the coil termination. The stator coil also includes at least one additional turn with two or more strands. The at least one additional turn includes first and second opposite sides, and an inversion region located adjacent to the inversion region of the first turn. The first and second sides of the first turn are inverted relative to the first and second sides of the at least one additional turn outside their respective inversion regions.

    Stator coil for high power density and efficiency electric machines

    公开(公告)号:US11942845B2

    公开(公告)日:2024-03-26

    申请号:US18301725

    申请日:2023-04-17

    CPC classification number: H02K3/42 H02K3/14 H02K15/0428

    Abstract: In one embodiment, a stator coil that includes a first turn with two or more strands is provided. The first turn includes first and second opposite sides, a coil termination at a first end of the first turn and an inversion region disposed at a second end, opposite the coil termination. The stator coil also includes at least one additional turn with two or more strands. The at least one additional turn includes first and second opposite sides, and an inversion region located adjacent to the inversion region of the first turn. The first and second sides of the first turn are inverted relative to the first and second sides of the at least one additional turn outside their respective inversion regions.

    STATOR COIL FOR HIGH POWER DENSITY AND EFFICIENCY ELECTRIC MACHINES

    公开(公告)号:US20240055925A1

    公开(公告)日:2024-02-15

    申请号:US18301725

    申请日:2023-04-17

    CPC classification number: H02K3/42 H02K3/14 H02K15/0428

    Abstract: In one embodiment, a stator coil that includes a first turn with two or more strands is provided. The first turn includes first and second opposite sides, a coil termination at a first end of the first turn and an inversion region disposed at a second end, opposite the coil termination. The stator coil also includes at least one additional turn with two or more strands. The at least one additional turn includes first and second opposite sides, and an inversion region located adjacent to the inversion region of the first turn. The first and second sides of the first turn are inverted relative to the first and second sides of the at least one additional turn outside their respective inversion regions.

    Method and apparatus to reduce losses in a compact high speed generator

    公开(公告)号:US11081924B2

    公开(公告)日:2021-08-03

    申请号:US15997273

    申请日:2018-06-04

    Abstract: A retention component for retaining a coil in a slot of a stator for a generator having a rotor includes a first segment and a second segment, both of which are configured to be inserted into the slot. At least one of the first and second segments is made entirely of laminated sheets that together form a unitary structure of magnetic material. At least one of the first and second segments has an interfacing surface configured to directly interface a rotor surface in the absence of a structure therebetween. A channel is between the first and second segments, and a third segment that extends along and within the channel. The third segment is less magnetic or non-magnetic than at least one of the first and second elements.

    COMPACT HIGH SPEED GENERATOR
    10.
    发明申请

    公开(公告)号:US20190341830A1

    公开(公告)日:2019-11-07

    申请号:US16515306

    申请日:2019-07-18

    Abstract: A method for generating electrical power may include the steps of rotating a rotor of a generator at a speed in excess of about 12,000 revolutions per minute (rpm) to about 25,000 rpm and producing power with the generator at a rate in excess of about 800 kilowatts (kW). The generator has a power/weight ratio no smaller than about 3 kW/lbs. A rotor is cooled with cooling oil internally circulated through the rotor of the generator so that contact of cooling oil with external surfaces of the rotor may be precluded. The stator is also cooled with oil that is prevented from contacting the external surfaces of the rotor. Pressurized airflow may be produced in a gap between the rotor and a stator of the generator to preclude entry of cooling oil into the gap.

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