公开(公告)号：US20240373602A1

公开(公告)日：2024-11-07

申请号：US18654129

申请日：2024-05-03

Applicant: ABB E-Mobility B.V. ,  ABB Schweiz AG

Inventor： Uwe DROFENIK ,  Francisco CANALES ,  Francisco GARCIA-FERRE ,  Daniel ROTHMUND ,  Piotr CZYZ

IPC: H05K7/20 ,  H02M7/00

Abstract: A converter is provided. The converter includes at least one medium voltage stage including an inverter circuit, at least one medium frequency transformer, a first winding of the transformer being electrically connected to the medium voltage stage, at least one DC output stage, the DC output stage being electrically connected to a second winding of the medium frequency transformer, and a plurality of containers having a volume. Each container is configured for holding an insulating fluid inside the volume. Each container has provided within the container one of the at least one medium frequency transformer to be electrically insulated by the fluid. The container includes at least one connector for fluidly connecting the volume with a fluid circuit. A first container of the plurality of containers is fluidly connected to a second container of the plurality of containers via the connector.

公开(公告)号：US20240372482A1

公开(公告)日：2024-11-07

申请号：US18652978

申请日：2024-05-02

Applicant: ABB E-Mobility B.V. ,  ABB Schweiz AG

Inventor： Uwe DROFENIK ,  Francisco CANALES ,  Daniel CHRISTEN

IPC: H02M7/219 ,  H02M1/00

Abstract: A converter for converting a medium voltage AC power into a low voltage DC power is provided. The converter includes a line interphase transformer having at least one core, a plurality of coils provided on the at least one core and configured for receiving the medium voltage AC power, and at least one auxiliary winding provided on the at least one core and inductively coupled to the medium voltage AC power by the core. The line interphase transformer is configured for generating a plurality of phase-shifted AC powers from the medium voltage AC power. The converter further includes a rectifier configured for generating a medium voltage DC power from the plurality of phase-shifted AC powers, and a DC/DC converter stage including a switching stage and a converter transformer. The DC/DC converter stage is configured for generating a low voltage DC power from the medium voltage DC power.