ELECTRICALLY INSULATING, THERMALLY CONDUCTIVE COATINGS FOR ELECTRICAL SYSTEMS AND DEPOSITION METHODS THEREOF

    公开(公告)号:US20220173630A1

    公开(公告)日:2022-06-02

    申请号:US17673938

    申请日:2022-02-17

    Abstract: An electric machine includes a rotor assembly having a rotor core that extends in an axial direction and a stator assembly surrounding and coaxial with the rotor assembly. The stator assembly includes a stator core having slots extending in a radial direction into an inner surface of the stator core and extending axially from a first end surface to a second end surface of the stator core. The stator assembly includes stator coil windings disposed within the respective slots of the stator core and a first electrically insulating conformal coating disposed between the stator core and the stator coil windings. The conformal coating includes a polymer matrix impregnated with an effective amount of thermally conductive ceramic materials, above a percolation threshold, that form continuous thermal pathways across a thickness of the first coating.

    CONFORMAL HEAT PIPE ASSEMBLIES
    12.
    发明申请

    公开(公告)号:US20210378154A1

    公开(公告)日:2021-12-02

    申请号:US17399371

    申请日:2021-08-11

    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

    Electric motor having conformal heat pipe assemblies

    公开(公告)号:US11043876B2

    公开(公告)日:2021-06-22

    申请号:US16727699

    申请日:2019-12-26

    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

    Electric Motor Having Conformal Heat Pipe Assemblies

    公开(公告)号:US20200336045A1

    公开(公告)日:2020-10-22

    申请号:US16727699

    申请日:2019-12-26

    Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

    System and method for suppressing surface discharges on conductive windings of an electric machine

    公开(公告)号:US10693338B2

    公开(公告)日:2020-06-23

    申请号:US15933398

    申请日:2018-03-23

    Abstract: A stator assembly of an electric machine includes a stator core having a slot extending between a first end and a second end, where the slot includes a first slot exit at the first end and a second slot exit at the second end. Also, the stator assembly includes a plurality of windings, where one of the plurality of windings is disposed in the slot and extends from the first slot exit to the second slot exit, and where the plurality of windings includes at least one conductor and an insulation disposed around the at least one conductor. Further, the stator assembly includes a dielectric plate coupled to one of the first slot exit and the second slot exit and configured to suppress surface discharges on windings present at one of the first slot exit and the second slot exit to which the dielectric plate is coupled.

    INSULATION FOR CONDUCTORS
    18.
    发明申请

    公开(公告)号:US20190267155A1

    公开(公告)日:2019-08-29

    申请号:US16404381

    申请日:2019-05-06

    Abstract: An insulative assembly includes an insulative mica-based carrier film and first and second resistive grading layers joined to opposite sides of the mica-based carrier film. The first resistive material layer is configured to engage one or more conductors and insulate the one or more conductors from at least one other conductor. A method for creating an insulative assembly for one or more conductors includes obtaining an insulative mica-based carrier film, depositing a first resistive grading layer on a first side of the mica-based carrier film, and depositing a second resistive grading layer on an opposite, second first side of the mica-based carrier film.

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