公开(公告)号：US20230347746A1

公开(公告)日：2023-11-02

申请号：US18350254

申请日：2023-07-11

Applicant: DENSO CORPORATION

Inventor： Koichi UMEDA ,  Tatsuki NISHIMATA ,  Takashi KAWASHIMA

IPC: B60L3/04 ,  H01H50/12 ,  B60L50/60 ,  H02J7/00 ,  H05K7/20

CPC classification number: B60L3/04 ,  H01H50/12 ,  B60L50/60 ,  H02J7/0042 ,  H05K7/20272 ,  B60L2210/10

Abstract: A power distribution device comprises a system main relay, i.e., SMR, a pre-charge circuit and a control board. The SMR selects between on and off of a current between a power conversion device and a battery. The pre-charge circuit includes a charge resistor and a charge switch which are provided to charge the smoothing capacitor with power supplied from the battery. The control board enables a current smaller than a current flowing through the SMR. The SMR and the control board are arranged in the x-direction via the pre-charge circuit.