Electric vehicle fire extinguishing device

An electric vehicle fire extinguishing device, comprising:

• an in-vehicle fire extinguishing agent channel unit, comprising an in-vehicle fire extinguishing agent channel defined by a staggered channel originally formed by gaps among a plurality of battery modules in a battery compartment and by an in-vehicle structure of an electric vehicle;
• and
• a fixed embedded connector unit, disposed on an surface of a vehicle body structure and connected to the in-vehicle fire extinguishing agent channel, the fixed embedded connector unit comprising a fixed female connector for conveying fire extinguishing agent, a first fixed male connector for an electric grounding pipeline, a second fixed male connector for a fire detection pipeline, a cavity, and a movable door cover;
• wherein the fixed female connector for conveying fire extinguishing agent is directly connected to the in-vehicle fire extinguishing agent channel, and an annular inner wall of the fixed female connector is provided with a plurality of movable baffles;
• a base of the first fixed male connector for the electric grounding pipeline is directly fixed on the in-vehicle structure;
• one end of the second fixed male connector for the fire detection pipeline is connected to a plurality of in-vehicle fire detection pipelines introduced into the in-vehicle fire extinguishing agent channel, and a first terminal device is arranged at a tail end of the plurality of in-vehicle fire detection pipelines;
• the cavity is disposed between the first fixed male connector and the second fixed male connector to form a safety distance therebetween;
• one side of the movable door cover comprises a hinge and fixed to the in-vehicle structure of the electric vehicle, such that when the fixed embedded connector unit is operated or deactivated, the movable door cover is opened or closed from an other side of the movable door cover.