公开(公告)号：US20250167540A1

公开(公告)日：2025-05-22

申请号：US19023153

申请日：2025-01-15

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yang Yan ,  Luo Li ,  Weiping Liu ,  Gun Yang

IPC: H02H7/20 ,  H02J3/38 ,  H02M1/00 ,  H02M1/32 ,  H02S40/30

Abstract: A photovoltaic inverter system includes a lightning protection apparatus, a plurality of DC/DC conversion circuits, and an inverter circuit. Each DC/DC conversion circuit is connected to a component. The plurality of DC/DC conversion circuits are connected in parallel and then connected to the inverter circuit. The lightning protection apparatus includes a gas lightning protection unit and a first lightning protection unit. The gas lightning protection unit is separately connected to a first terminal of the component and a first terminal of another component. The first lightning protection unit is connected between the first terminal of the component and a grounding terminal. The gas lightning protection unit is configured to transmit, to the first lightning protection unit, a first current, namely a current introduced by any terminal of the another component. The first lightning protection unit is configured to transmit the first current and/or a second current to the grounding terminal.

公开(公告)号：US20240331961A1

公开(公告)日：2024-10-03

申请号：US18618778

申请日：2024-03-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Wei Wang ,  Luo Li ,  Sheng Rao ,  Jun Xiang ,  Ruixiang Zhang

IPC: H01H50/58 ,  H01H50/18 ,  H01H50/54

CPC classification number: H01H50/58 ,  H01H50/18 ,  H01H50/548

Abstract: A relay includes an electromagnet apparatus, a first transmission part, a second transmission part, a first elastic part, a first movable contact, a second static contact, a second elastic part, a first static contact, and a second movable contact. The first movable contact, the second static contact are both disposed on the first elastic part. The second movable contact and the first static contact are both disposed on the second elastic part. The first movable contact is in contact with or separated from the first static contact, and the second movable contact is in contact with or separated from the second static contact. When the first movable contact is in contact with the first static contact, the second movable contact is in contact with the second static contact, the first movable contact and the first static contact are in parallel with the second movable contact and the second static contact.

公开(公告)号：US20240292553A1

公开(公告)日：2024-08-29

申请号：US18584416

申请日：2024-02-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Gun Yang ,  Luo Li ,  Maofan Li ,  Xuan Liu

IPC: H05K5/02 ,  H01F27/06 ,  H02M1/32

CPC classification number: H05K5/0217 ,  H01F27/06 ,  H02M1/327

Abstract: A power converter includes a housing, a power device, a circuit board, a connection piece, and an inductor apparatus. The power device is installed on the circuit board, and an accommodation cavity is formed in the housing and is configured to accommodate the circuit board and the power device. A through-hole is provided on a surface that is of the housing and that faces the circuit board. The inductor apparatus is completely exposed or partially exposed outside the housing and covers the through-hole. The connection piece extends from the circuit board in the housing to the inductor apparatus, and passes through a surface of the housing to physically connect the inductor apparatus to the housing and electrically connect the power device to the inductor apparatus at the same time.