Battery mounting and fixing structure of purely electric automobile

Abstract

The invention provides a battery mounting and fixing structure of a purely electric automobile, which comprises a rear floor front cross beam assembly, a rear floor rear cross beam, left and right rear longitudinal beams and rear longitudinal beam battery left and right mounting frames. The rear floor front cross beam assembly is mounted on the front ends of the left and right rear longitudinal beams by bolts and connected with a rear floor; the two ends of the rear floor rear cross beam are arranged on the rear ends of the left and right rear longitudinal beams by bolts and connected with the rear floor; and the rear longitudinal beam battery left and right mounting frames are welded with the middle parts of the let and right rear longitudinal beams respectively. The rear floor front cross beam assembly, the rear floor rear cross beam and the rear longitudinal beam battery left and right mounting frames are provided with battery mounting holes respectively. The fixing structure is a frame structure, can reasonably bear the weight of a battery pack and optimize the torsional rigidity of the vehicle body, and is excellent in assembly process and convenient in mounting and detachment.

Description

Technical field [0001] The invention relates to the structure of an automobile body, in particular to the structure of a sheet metal part of the body. Background technique [0002] With the increasing shortage of energy and people’s increasing attention to environmental protection, pure electric will be the main direction of the automotive industry in the long run. However, battery packs are a severe test for traditional car bodies. Battery packs of several hundred kilograms cannot be directly installed in the original rear. Floor 2, left rear longitudinal beam 1 and right rear longitudinal beam 3 (see figure 1 ), it is necessary to add a rear floor frame structure to install the battery and optimize the rigidity and strength of the body. Summary of the invention [0003] The purpose of the present invention is to provide a battery installation and fixing structure for pure electric vehicles, which can meet the battery installation requirements and optimize the torsional rigidity ...

AI Technical Summary

Problems solved by technology

[0002] With the increasing shortage of energy and people's increasing emphasis on environmental protection, pure electric power will be the main direction of the automotive industry in the long run, but the battery pack is a severe test for the traditional body, and the battery pack of several hundred kilograms cannot be directly installed in the original rear. On floor 2, left rear stringer 1 and right rear stringer 3 (see figure 1 ), it is necessary to add a rear floor frame structure to install batteries, optimize body rigidity, strength

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