公开(公告)号：US20230012132A1

公开(公告)日：2023-01-12

申请号：US17947531

申请日：2022-09-19

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiaokang TIAN ,  Taixian CHEN ,  Fugao ZHAO ,  Guangming HUANG

IPC: H01H50/62 ,  H01H50/02

Abstract: An electromagnetic switch, including a driving apparatus and a contact apparatus. The contact apparatus includes a moving contact assembly, a chamber, and two spaced fixed contacts disposed on a top part of the chamber. The moving contact assembly includes an insulating part, a push rod, a moving contact, and an elastic part. One end of the push rod is mounted on the driving apparatus, and the other end of the push rod is mounted on the insulating part. The moving contact is mounted on one side that is of the insulating part and that is back to the push rod. The elastic part is clamped between the insulating part and the moving contact, so that the moving contact is in contact with or separated from the pair of fixed contacts under the action of the push rod.

公开(公告)号：US20230386763A1

公开(公告)日：2023-11-30

申请号：US18323612

申请日：2023-05-25

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jisheng SUN ,  Jianfei MA ,  Xiufeng ZHANG ,  Xiaokang TIAN ,  Jiajing WU

IPC: H01H9/36 ,  H01H3/08 ,  H01H9/02

CPC classification number: H01H9/36 ,  H01H3/08 ,  H01H9/02

Abstract: A power supply system includes a control unit, a switch, a direct current source, and a power change unit. The switch includes a switch unit and an operation mechanism. The operation mechanism is configured to receive a switch-off signal and control the switch unit to be turned on or off. The switch unit includes a first static contact, a movable contact, and a first arc extinguishing structure. When the switch unit is turned off, the movable contact rotates about a rotation center relative to the first static contact by a first included angle to be separated from the first static contact, to generate a first arc. The first arc extinguishing structure includes a first arc extinguishing end part and a second arc extinguishing end part. A connection line between the first arc extinguishing end part and the rotation center of the movable contact is a first line.

公开(公告)号：US20230307197A1

公开(公告)日：2023-09-28

申请号：US18189267

申请日：2023-03-24

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jisheng SUN ,  Jianfei MA ,  Xiufeng ZHANG ,  Xiaokang TIAN

IPC: H01H19/14 ,  H01H19/20

CPC classification number: H01H19/14 ,  H01H19/20

Abstract: A power mechanism, a switch, a power conversion apparatus, and a power supply system. The switch includes a contact component, a knob, and a power mechanism connected between the contact component and the knob. The power mechanism includes a fastening bracket, a knob connector, a contact connector, a transmission component, a trip unit, and a cradle. Both the knob connector and the contact connector are rotatively connected to the fastening bracket, and rotation centers of the knob connector and the contact connector are collinear. The transmission component is configured to implement power transmission between the knob connector and the contact connector. The trip unit is configured to receive a switch-off signal, to implement tripping of the trip unit and the cradle. The transmission component is driven to move by using the cradle, to separate the movable contact from the static contact, so that the switch is switched off.

公开(公告)号：US20240128789A1

公开(公告)日：2024-04-18

申请号：US18397404

申请日：2023-12-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiufeng ZHANG ,  Xiaokang TIAN

IPC: H02J7/35 ,  H02J3/38 ,  H02J7/00

CPC classification number: H02J7/35 ,  H02J3/381 ,  H02J7/00304

Abstract: A photovoltaic system includes at least one first direct current module, an electromagnetic apparatus, a direct current switch-on/off apparatus, and a second direct current module. First connection ends of all first direct current modules in the at least one first direct current module are connected in parallel and then connected to a first connection end of the electromagnetic apparatus, a second connection end and a third connection end of the electromagnetic apparatus are connected to a first connection end of the second direct current module by using the direct current switch-on/off apparatus, and second connection ends of all the first direct current modules are connected in parallel and then connected to a second connection end of the second direct current module. The electromagnetic apparatus is configured to control the direct current switch-on/off apparatus to disconnect a loop between each first direct current module and the second direct current module.

公开(公告)号：US20230178320A1

公开(公告)日：2023-06-08

申请号：US18155885

申请日：2023-01-18

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiaokang TIAN ,  Taixian CHEN ,  Fugao ZHAO ,  Yuhan HE

IPC: H01H50/58 ,  H01H50/18 ,  B60L53/10

CPC classification number: H01H50/58 ,  B60L53/10 ,  H01H50/18

Abstract: A contact apparatus includes a base body, two fixed contacts, and a moving contact component. The base body has an inner cavity. The two fixed contacts are fastened to the base body at intervals and extend into the inner cavity of the base body. The moving contact component includes a pushing member and a moving contact. The pushing member is movably disposed through the base body. The moving contact is mounted on the pushing member and is located in the inner cavity of the base body. The pushing member is configured to drive the moving contact to move, so that the moving contact is in contact with or is separated from the two fixed contacts.

公开(公告)号：US20230121284A1

公开(公告)日：2023-04-20

申请号：US17967988

申请日：2022-10-18

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiufeng ZHANG ,  Xiaogang GUO ,  Yazhu ZHAO ,  Jichang HUANG ,  Xiaokang TIAN ,  Jianfei MA

IPC: H01H19/14 ,  H01H19/20 ,  H01H3/10 ,  H01H83/20

Abstract: A switch, a power conversion apparatus, and a power supply system. The power supply system includes a control unit, a switch, a direct current source, and a power conversion unit. The switch is electrically connected between the direct current source and the power conversion unit, and the control unit is configured to send a switch-off signal to the switch when a fault occurs on the direct current source or the power conversion unit. The switch includes a contact component, a trip-free structure, and a knob that are sequentially disposed in a stacked manner in a first direction. A trip unit of the trip-free structure is configured to receive the switch-off signal, to unlock the trip unit from the cradle. The cradle drives the connecting rod structure to move, to separate the moving contact from the fixed contact.