A battery pack explosion-proof valve structure, battery pack structure and automobile

Abstract

The invention provides a battery pack explosion-proof valve structure, a battery pack structure and an automobile, including: an explosion-proof valve body, and the explosion-proof valve body includes: a baffle matching the exhaust hole on the battery pack box and a baffle that is perpendicular to the baffle and faces the battery. The connecting rod arranged in the bag box; the limiting structure arranged on the surface of the blocking plate, the limiting structure includes a connecting piece and a plurality of limiting feet formed by extending and bending the edge of the connecting piece, and the connecting piece is passed through the connecting rod When the explosion-proof valve body moves along the axial direction of the connecting rod, one end of the limit leg abuts against the edge of the exhaust hole; the elastic cover, the top of the elastic cover is fixedly connected with the connecting rod, The bottom of the elastic cover is fixed on the battery pack box; when the elastic cover is in a natural state, the flap covers the vent hole; when the pressure inside the battery pack box is greater than the pressure outside the battery pack box, the elastic cover becomes elastic Deformation, under the action of the air pressure and the elastic force of the elastic cover, the baffle moves away from the exhaust hole along the axial direction of the connecting rod.

Description

technical field [0001] The invention relates to the technical field of battery design, in particular to a battery pack explosion-proof valve structure, a battery pack structure and an automobile. Background technique [0002] With the rapid development of electric vehicles, battery packs, as the core key components of electric vehicles, have higher and higher safety requirements. In extreme cases, when the internal short circuit of the battery pack or thermal runaway of the cells occurs, the internal temperature and pressure of the battery pack will rise rapidly. At this time, it is difficult to quickly exhaust the battery pack, which will cause the battery pack to explode due to excessive expansion. Contents of the invention [0003] The object of the present invention is to provide a battery pack explosion-proof valve structure, a battery pack structure and a car, which are used to solve the problem of possible explosion when the internal temperature and pressure of the ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a battery pack explosion-proof valve structure, a battery pack structure and a car, which are used to solve the problem of possible explosion when the internal temperature and pressure of the battery pack rise rapidly

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