公开(公告)号：US12176655B2

公开(公告)日：2024-12-24

申请号：US17683767

申请日：2022-03-01

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Kai Yin ,  Cheng Ma ,  Xiaoke Ran ,  Wei Guo

IPC: H01R13/642 ,  H02B1/056 ,  H02B1/20 ,  H02H3/08

Abstract: The power distribution component is configured to connect to a power distribution box in a pluggable manner. A main body is provided with a first power terminal, a signal terminal, and a second power terminal that are arranged along a first direction. The first power terminal is configured to electrically connect to a first power busbar of the power distribution box, the signal terminal is configured to electrically connect to a signal busbar of the power distribution box, and the second power terminal is configured to electrically connect to a second power busbar of the power distribution box. Polarities of the first power terminal and the second power terminal are opposite. An end, facing away from the main body, of the mistake proofing structure is provided with an abutting surface, configured to abut against the signal busbar when the power distribution component is reversely inserted into the power distribution box.

公开(公告)号：US11353487B2

公开(公告)日：2022-06-07

申请号：US16802276

申请日：2020-02-26

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Kai Yin ,  Zhiwu Xu ,  Yuandong Meng

IPC: G01R27/26

Abstract: A method and an apparatus for detecting capacitance of a filter capacitor of an inverter are provided, wherein each output terminal of the inverter is connected to one terminal of a first filter capacitor through an inductor, and the other terminals of all first filter capacitors are interconnected. The method includes: outputting a first voltage {dot over (U)}1i through an ith output terminal of the inverter, i=1, 2 . . . N, i≠j, 1≤j≤N, i and j are positive integers, and N is a total quantity of output terminals of the inverter; obtaining İik and determining a ratio of |İij| to |İik|, where İik is a current of an inductor connected to a kth output terminal when the ith output terminal outputs the first voltage {dot over (U)}1i, k=1, 2 . . . N, and k is a positive integer; and determining capacitance of a first filter capacitor connected to the jth output terminal based on İij, {dot over (U)}1i, and the ratio of |İij| to |İik|.