A new energy vehicle battery protection device

Abstract

The invention discloses a new energy vehicle battery protection device, which comprises a battery case for placing batteries and a protection mechanism located outside the battery case. The protection mechanism includes two L-shaped plates respectively located on the front and rear sides of the battery case, and The vertical part of the L-shaped plate is connected to the battery box through a buffer cylinder. The front and rear ends of the battery box are respectively provided with an air inlet and an air outlet. The buffer cylinder drives the front sealing mechanism to act, the inner wall of the battery box is provided with a rear sealing mechanism for sealing the air outlet, and the inner top wall of the battery box is provided with a storage groove. The invention can spray dry powder into the battery box in time when the car collides. If it encounters an open flame, it can decompose and produce carbon dioxide to play a flame-retardant effect, and further reduce the oxygen content in the battery box, and can seal and isolate the battery box. Further prevent the battery from burning.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a new energy vehicle battery protection device. Background technique [0002] With the continuous mining of non-renewable energy, fossil energy is getting less and less, so new energy vehicles are developing day by day. New energy vehicles are generally powered by lithium batteries, and due to the requirements of battery life, lithium batteries installed in cars are generally The number is large, the volume is large, and the battery will generate a lot of heat when it supplies power. Therefore, it is necessary to effectively cool the battery. The existing method generally cools the battery by continuously passing cold air into the battery box, but in case of In the event of a traffic accident, since the battery will rupture or even burn due to extrusion and deformation, the cooling air introduced at this time will help the combustion to a certain extent, and the batte...

AI Technical Summary

Problems solved by technology

[0002] With the continuous mining of non-renewable energy, fossil energy is getting less and less, so new energy vehicles are developing day by day. New energy vehicles are generally powered by lithium batteries, and due to the requirements of battery life, lithium batteries installed in cars are generally The number is large, the volume is large, and the battery will generate a lot of heat when it supplies power. Therefore, it is necessary to effectively cool the battery. The existing method generally cools the battery by continuously passing cold air into the battery box, but in case of In the event of a traffic accident, since the battery will rupture or even burn due to extrusion and deformation, the cooling air introduced at this time will help the combustion to a certain extent, and the batteries on traditional new energy vehicles are generally not equipped with active and timely fire extinguishing and battery isolation. When the car collides, the battery is very easy to burst due to the collision, causing the battery to burn violently or even explode, and then a more serious secondary accident occurs, which is less safe.

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