Battery box body

Abstract

The invention discloses a battery box body, applied to an electric vehicle. The battery box body comprises an upper box body located at an upper part of the battery box body; and a lower box body located at a lower part of the battery box body and comprising a bottom surface and a side face, wherein the side face is located on the periphery of the bottom surface, the side face and the bottom surface are enclosed to form a cavity, and a plurality of sawtooth-shaped projections are arranged on outer sides of the bottom surface and the side face. The trapezoids of the sections of the plurality ofsawtooth-shaped projections are isosceles trapezoids, and the included angles of the waists and the bottom margins of the isosceles trapezoids are 55 degrees to 65 degrees. The plurality of sawtooth-shaped projections are arranged on the outer sides of the bottom surface and the side face in parallel and are respectively parallel to one side of the bottom surface and the side face, and two ends of the plurality of sawtooth-shaped projections extend to the edges of the located planes. The bottom margins of the trapezoids of the sections of the adjacent plurality of sawtooth-shaped projectionsare connected. By means of the plurality of sawtooth-shaped projections located on the outer side of the lower box body of the battery box body, the stoke attack resistance strength of the battery boxbody can be enhanced, and the heat dissipation area of the battery box body can also be increased to improve the heat dissipation ability of the battery box body.

Description

technical field [0001] The invention relates to the field of batteries, and more particularly to a battery case. Background technique [0002] At present, the global automobile industry is facing the huge challenge of energy and environmental issues; pure electric vehicles with high energy utilization rate and no pollution to the environment are increasingly becoming the development direction of the future automobile industry. As the core component of electric vehicles, the safety of electric vehicle power batteries will directly affect the performance and driving safety of electric vehicles. In order to ensure the good performance of the battery and prolong the service life of the battery, it is necessary to ensure the normal working state inside the battery box, which requires high stability of the battery box structure. [0003] The most commonly used anti-stone impact method in the prior art is to coat a layer of anti-stone impact protective layer on the bottom of the b...

AI Technical Summary

Problems solved by technology

In the process of coating the protective layer, a very complicated process is required, and the protective layer is easy to fall off due to external influences. At the same time, a protective layer with a certain thickness makes the heat dissipation capacity of the battery box very low.

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