-
公开(公告)号：EP4318840A1
公开(公告)日：2024-02-07
申请号：EP21932312.8
申请日：2021-03-30
发明人： LIU, Miao , LIU, Bing , TAO, Gongjiao , HU, Binghua , LI, Zengquan
摘要： Disclosed in the present invention are an arc extinguishing control system and method for a relay of an emergency power supply, which relate to the field of power supplies. A relay serves as a main switching circuit for controlling an emergency power supply, and electronic switching tubes are connected in parallel to two ends of the relay, so as to quickly withstand a voltage jump when the relay is switched off, and thus, the relay is prevented from generating an arc spark, the common problems of existing relays, such as arc damage and an internal resistance increase, are solved, and the relay that has a lower cost and a higher current withstand capability and does not need an additional heat sink is used as a device for controlling the switching on and off, such that an emergency start power supply of a vehicle has better safety, durability and market efficiency. Moreover, when the phenomenon of large-current reverse charging occurring after the vehicle is started is faced, a reverse charging sensing circuit and a reverse charging feedback circuit are used, so that a reverse charging current is directly fed back to a control end of an electronic switching tube when a storage battery is reversely charged by a load, thereby realizing the quick switching off of the electronic switching tube.
搜索结果
1 条记录 (耗时 0.008 秒)
