MULTI-SWITCH MODULE PACKAGING FOR MULTILEVEL INVERTER

    公开(公告)号:US20250015742A1

    公开(公告)日:2025-01-09

    申请号:US18347883

    申请日:2023-07-06

    Abstract: Multi-switch module packaging for a multilevel inverter is provided. A multilevel inverter is connected to the battery. The multilevel inverter includes three levels, each of the three levels having a first module and a second module. The first module is formed on a first insulating substrate material, and the second module is formed on a second insulating substrate material separate from the first insulating substrate material. The first module includes a first switch coupled to the battery via a positive power rail, a second switch coupled to the battery via a negative power rail, and a third switch coupled to the second module. The second module includes another first switch coupled to the battery, another second switch coupled to the battery, and another third switch coupled to the first module. The first module includes four terminals and the second module includes another four terminals.

    Electric machine with non-magnetic lamination bridges

    公开(公告)号:US11817748B2

    公开(公告)日:2023-11-14

    申请号:US16944578

    申请日:2020-07-31

    CPC classification number: H02K1/30 H02K1/02 H02K1/276 H02K7/006 H02K15/03

    Abstract: A method for constructing a lamination for a rotary electric machine includes forming an annular lamination from a ferrous core material having a first relative magnetic permeability. The lamination defines through-openings, e.g., for permanent magnets or conductors. Peripheral bridges of the core material extend between the through-openings and an outer or inner diameter surface of the lamination. The method includes diffusing an alloy material having a second relative magnetic permeability into the bridges to form austenitic bridges, with the second relative magnetic permeability being less than the first relative magnetic permeability. A rotary electric machine includes a stator and rotor. A vehicle includes a rotary electric machine connected to the battery pack and to road wheels, and having a rotor and/or a stator constructed in accordance with the method.

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