How to prevent the electric bicycle fire caused by what causes?
The charger and rechargeable battery products are not qualified. A qualified charger should have an intelligent multistage charging mode with undervoltage and overcurrent protection circuits and matching with the battery of the electric vehicle. Not qualified charger, rechargeable battery in full, because they do not have the intelligent charging function, can not enter the floating stage, the continuing high current charging of rechargeable batteries, rechargeable batteries lead to high temperature, easy to cause a fire or explosion of battery heating line. As an auto parts store in Yixing at the end of 2012 of a car at the fire, after inspection of the scene, is parked in the door of the car battery battery failure caused by fire, it is understood that the car battery is not in a state of charge in the fire, in front of the fire to the private car owners had to repair shop to replace unlicensed free a group of battery manufacturers.
First, the cause of the electric car fire1 、 electrical safety protection device can not work. At present, the market of electric vehicles in the production process does not install or even short-circuit protection device installed short-circuit protection device, no access to unauthorized disassembly line or repair process, resulting in most electric vehicles in use do not have short circuit protection function.
The production assembly line layout is not standardized. Part of the electric car production enterprises in the production process is not required to select appropriate diameter line, line connector is not waterproof, moistureproof function, random line, and do not set the protection device, the assembly process unreasonable, resulting in damage to the main power line state for a long time, if there is high voltage or high current through, very easy spark, and other accessories, fever, fire. In addition, due to the long use of electric vehicles, resulting in electric vehicle distribution lines wear or protection of the line wear, resulting in short-circuit, causing fire. In the production process, the necessary protection devices are not installed according to the requirements, which can not effectively prevent the line fault, leading to fire.4, charging circuit installation problems more. When the electric vehicle is charged, the electric circuit is pulled and pulled randomly, the type selection is not correct, the conductor wire diameter is too small, the short-circuit protector is not installed, etc., and the heating of the charging circuit causes the fire.
