When the electric car encounters heavy rain, the safety factor is somewhat?

Many electronic devices fall into the water and are subject to varying degrees of damage. For electric vehicle owners, when they enter the rainy season, they will also be worried that driving pure electric cars will cause serious leakage of electricity on the road surface where there is a serious accumulation of water. So, does this affect the safety of the occupants in the vehicle?

Although people's fears should not be underestimated, this is not the case. It must be noted that how can rigorous testing and strict standards not consider the safety of vehicles in various environments? It is necessary to say that there is a clear indicator in the product protection security level: IP protection level.

For power batteries used in new energy vehicles, compliance with the IP67 standard is an absolute requirement, and IP67 can be interpreted as protection against dust inhalation (to prevent contact and prevent dust penetration); protection against short-term immersion (prevention) .

At the same time, the author also learned from the 4S shop staff that each vehicle must go through strict environmental testing before it is put on the market to ensure that the batteries themselves must have strong resistance to pressure without relying on any protective measures. Capability, such as puncture, squeezing, burning, and other violent testing processes.

In addition, due to the fact that most of the new energy car battery packs are arranged on the chassis, they are more likely to come in contact with water during driving. In order to ensure the safety of the battery pack while the vehicle is running, the manufacturer also provides a protection frame for the battery pack. It can carry out special insulation protection for the high voltage part of the battery pack, including the wading, collision and other external forces may cause safety impact on the battery pack.

Finally, the software system level is also a safety barrier. Under the running state of the vehicle, the power battery management system (BMS) will provide high-voltage electric shock protection, vehicle collision power-off protection, high-pressure component waterproof protection, and high-voltage leakage insulation protection through the monitoring of the battery status. In other words, as long as there are any problems, the system will respond to the first time to remind you to keep the battery in a safe state.