Battery pack impact test system

Abstract

The invention belongs to the technical field of battery packs, and particularly relates to a battery pack impact test system which comprises a fence and a top surface cover plate, the fence is fixed on the ground, movable opening and closing doors are arranged on two sides of the fence, the top surface cover plate covers the fence and is sealed, and a cross beam stretches across the top surface cover plate; the cross beam is hollow and is movably provided with two groups of collision mechanisms, the two groups of collision mechanisms can be mutually collided or freely separated, the hollow part of the cross beam is internally provided with a traction rope group, the impact unit and the test unit form a complete test system, and the test speed of the impact unit and the test speed of the test unit are always kept consistent; a fire extinguishing mechanism is arranged in the fence and externally connected with a receiving box body and an air supply box body. The device has the advantages that a simulation test can be carried out in a mode that an impact object collides with the battery pack at a constant speed, the defect of a traditional single acceleration object is overcome, energy consumption is saved, meanwhile, multi-angle and protective impact test can be carried out, and the test effect is more comprehensive and real.

Description

technical field [0001] The invention belongs to the technical field of battery packs, in particular to a battery pack impact test system. Background technique [0002] The definition of new energy vehicles: different countries have different formulations, including 5 categories, namely: natural gas-fueled vehicles, hybrid vehicles, electric vehicles, methanol-fueled vehicles, pollution and fuel efficiency limit standards Strictly clean gasoline cars. [0003] Electric vehicle batteries are divided into two categories, storage batteries and fuel cells. Fuel cell electric vehicles, including alkaline fuel cell (AFC), phosphoric acid fuel cell (PAFC), molten carbonate fuel cell (MCFC), solid oxide fuel cell (SOFC), proton exchange membrane fuel cell (PEMFC), direct Methanol Fuel Cell (DMFC). [0004] The only source of power for pure electric vehicles is the battery pack, which is usually installed on the chassis of the vehicle and is already in the safest part of the vehicl...

AI Technical Summary

Problems solved by technology

[0004] The only source of power for pure electric vehicles is the battery pack, which is usually installed on the chassis of the vehicle and is already in the safest part of the vehicle body. The original intention of the design is that it is flammable and explosive after being impacted. The "blade battery" will also cause local high temperature after being damaged by external force. Therefore, damage management is also an important development direction of automotive battery packs. In the traditional impact test, because the battery pack body is only used for testing, there are simulation There are disadvantages of discrepancy, because the pure battery pack does not have any substantial protection, and the traditional impact is more dynamic-static test, that is, the battery pack used for the high-speed impact test of the object, the enterprise needs to make the acceleration energy of the object higher during the test. , and does not have the ability of multi-angle, multi-directional impact test

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