Automatic fire extinguishing equipment for new energy automobile battery box

Abstract

The invention discloses automatic fire extinguishing equipment for a new energy automobile battery box in the technical field of new energy automobiles. The equipment comprises a battery box, four groups of batteries are arranged in the battery box, and positive and negative electrodes of the four groups of batteries are respectively connected in series through first connecting wires; the positive electrodes of the first group of batteries and the negative electrodes of the fourth group of batteries are connected with second connecting wires; and the second connecting wires penetrate through the shell of the battery box. After the battery is on fire, a driving mechanism can be quickly started, an insulating cutter can cut off a second connecting line of the positive electrode and the negative electrode of the battery under the driving of the driving mechanism, fire is prevented from extending towards the whole automobile body along the second connecting line, a fire source is cut off to a certain extent, fire extension is slowed down, and the fire is prevented from quickly damaging the whole automobile; and meanwhile, dry powder in a filling groove can fall onto the battery when the filling groove is opened, open fire on the surface of the battery can be quickly extinguished, and the battery cannot be excessively burnt.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to an automatic fire extinguishing device for a battery box of a new energy vehicle. Background technique [0002] Existing new energy vehicles all use lithium-ion batteries as the power system, and lithium-ion batteries have certain safety hazards during the operation of the vehicle, especially in the case of abuse, such as overcharging, over-discharging, Lithium-ion batteries are prone to safety accidents such as smoke, fire or even explosion under conditions of extrusion, acupuncture, fire, etc. [0003] In the prior art, if the lithium-ion battery burns during the charging process, it cannot be stopped and extinguished immediately. When the fire continues to increase, an explosion will occur, and the fire of the lithium-ion battery will gradually expand, and will extend outward along with the power line , thus causing the combustion of the entire car, resulting in g...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic fire extinguishing device for a battery box of a new energy vehicle to solve the problem in the prior art proposed in the above-mentioned background technology that if combustion occurs during charging of a lithium-ion battery, it cannot be prevented and extinguished immediately. After the fire continues to increase, it will explode, and the fire of the lithium-ion battery will gradually expand, and will extend outward with the power line, which will cause the entire car to burn and cause large economic losses.

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