In recent years, the popularity of electric bicycles has increased, and electric bicycle fires have occurred one after another. Are these reasons caused by battery spontaneous combustion?
According to data provided by the China Automotive Technology Research Center, electric vehicle accidents accounted for 35% of short circuits; charging caused 26%; 18% were affected by mechanical external forces, such as collisions; 3% were water ingress; the rest It is caused by unknown reasons. These data confirm that the battery will not ignite spontaneously within a reasonable safety standard.
The main reason for the fire in electric vehicles is
01
The electrical circuit design is unreasonable, and the quality is unreliable; this situation usually occurs in the brand or local brands, so consumers must look for reliable quality when buying electric vehicles Don’t be greedy for temporary cheapness.
02
users refit privately, the controller is not protected; from the unset of the controller protection, to privately increasing the battery, increasing the motor and increasing the electrical load, in fact, this is another important cause of the fire, and the modification is endless. .
03
charger failure; as a power provider, it is also a component directly in contact with alternating current. It is most likely to cause a huge disaster due to failure or aging of the line (the battery itself will not catch fire), so increase the battery and charger Regular and timed inspections of components are necessary.
04
chargers do not match; mismatched electric vehicle chargers may also cause electric vehicles to catch fire. Many families now have more than one electric car, and electric car chargers of different brands must not be mixed. This will not only cause damage to the electric car battery, but also accelerate the reduction of battery life.
05
Excessive charging; Excessive charging is also the main cause of spontaneous combustion of electric vehicles. In general, an electric car can be charged for about eight hours to meet the needs of users. In reality, many users directly charge their electric vehicles overnight for 12 hours or even longer in order to save trouble. This will not only have no positive effect, but will reduce the performance of the battery.
06
Vehicles with water and damp do not start any circuit. After the circuit is soaked in water, it is easy to short-circuit, which will affect the damage of electric vehicle components. Seriously, it is very easy to short-circuit and cause fire. This is very important.
How to prevent electric vehicle fires
01
prevent electric vehicle fires. When buying from vehicles, you should pay attention to the brand checking device. When buying electric vehicles, consumers should pay attention to choosing products with production licenses, high market awareness, and well-known brands Electric vehicles, at the same time pay attention to check whether the electric vehicles have undervoltage, overcurrent protection and short-circuit protection.
02
should be checked and maintained regularly, and should be noted that when the electric vehicle breaks down and needs to be repaired, it is necessary to select a professional maintenance organization or personnel; do not disassemble the electrical protection device without authorization to ensure that the electrical circuit and the protection device are intact and effective.
03
When charging electric vehicles, standardize the wiring and charge in a limited time. The vehicle should be charged outdoors as far as possible. The charging circuit should choose the appropriate circuit, the circuit laying should be fixedly installed, and short circuit and leakage protection devices should be installed. The vehicle should avoid too long charging time and should be charged according to the instructions. In principle, the charging time should not exceed 10 hours.
Afterword:
fires in electric vehicles should not always point the finger at the battery. Although the battery has not made much progress in the field of new materials after so many years of improvement, it has been optimized to the extreme in the field of traditional batteries, so the battery itself is still Can stand the approval of the market.
