公开(公告)号：EP3690917A1

公开(公告)日：2020-08-05

申请号：EP18869509.2

申请日：2018-10-10

申请人： Xi'an Jiaotong University ,  Huawei Technologies Co., Ltd.

发明人： NIU, Chunping ,  WU, Yi ,  KANG, Xufeng ,  YANG, Fei ,  RONG, Mingzhe ,  YAN, Guangchao ,  FANG, Qingyin

IPC分类号： H01H50/54

摘要： A high voltage relay resistant to instantaneous high-current impact is disclosed, and includes an electromagnet system, a control system, a contact system, and a base support. In the present solution, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.

公开(公告)号：EP4152357A1

公开(公告)日：2023-03-22

申请号：EP21809515.6

申请日：2021-05-20

申请人： Huawei Technologies Co., Ltd.

发明人： YAN, Guangchao ,  CAO, Guoqing ,  XIAO, Zhiming ,  WANG, Zuofeng ,  WANG, Keying

IPC分类号： H01H71/10 ,  H01H71/08 ,  H02B1/04

摘要： Embodiments of this application provide a circuit breaker and a power distribution system, and relate to the field of electrical device technologies. The circuit breaker includes a housing, a link mechanism, a movable contact plate, and a fixed contact plate that are disposed in the housing. The link mechanism is connected to the movable contact plate to control the movable contact plate and the fixed contact plate to switch between a switched-on state and a switched-off state. The link mechanism includes a fixing plate, a crank arm, a jumper subboard assembly, and a diversion plate. The crank arm is hinged to the fixing plate. The jumper subboard assembly is hinged to the crank arm. The diversion plate is separately hinged to the jumper subboard assembly, to the movable contact plate, and through a rotating shaft, to the fixing plate. A hinge joint between the diversion plate and the jumper subboard assembly, a hinge joint between the diversion plate and the movable contact plate, and a hinge joint between the diversion plate and the fixing plate are arranged in a triangular shape. The movable contact plate has a strip-shaped hole. A surface on which the movable contact plate and the fixed contact plate come into contact is a contact plane. An extension direction of the strip-shaped hole is not parallel to the contact plane. The rotating shaft passes through the strip-shaped hole, and the movable contact plate can move relative to the rotating shaft along the extension direction of the strip-shaped hole.

公开(公告)号：EP4250328A1

公开(公告)日：2023-09-27

申请号：EP21900101.3

申请日：2021-12-03

申请人： Huawei Technologies Co., Ltd.

发明人： YAN, Guangchao ,  DONG, Enyuan ,  TANG, Zhuo ,  WANG, Yongxing ,  WANG, Gongrun ,  SUN, Xiaozhi ,  ZHANG, Lifan ,  XUE, Shutian ,  PI, Yuqiang ,  XIAO, Zhiming ,  PENG, Liangqiang

IPC分类号： H01H50/16 ,  H01H50/42 ,  H01H51/01

摘要： Disclosed is a relay, configured to enhance a retention force by using a yoke iron (b) and an opening group on a top cover (f). The relay includes the yoke iron (b), the top cover (f), a static iron core (c), a primary permanent magnet group, a secondary permanent magnet group, a first movable iron core (d), and a second movable iron core (d). The top cover (f) is provided with a first opening group (h), the first opening group (h) is provided at a position at which the top cover (f) is configured to be in contact with the first movable iron core (d), the first opening group (h) includes at least one first sub-opening, the yoke iron (b) is provided with a second opening group (i), the second opening group (i) is provided at a position at which the yoke iron (b) is configured to be in contact with the second movable iron core (d), and the second opening group (i) includes at least one second sub-opening.