Distributed arrangement structure of power battery box group for four-in-wheel-motor driving electric automobile

Abstract

The invention provides a distributed arrangement structure of a power battery box group for a four-in-wheel-motor driving electric automobile. The battery box comprises a closed space defined by a front floor, a rear floor, a left doorsill beam, a right doorsill beam, upper floors and a lower floor. According to parameters of an ergonomic arrangement requirement, an auto body structure, a seat mounting structure and arrangement requirements of battery cells and electric components inside power batteries, battery packs are designed to be laid between the upper floors and the lower floor, so that according to the lower bottom surfaces of the battery packs, a finished automobile minimum ground clearance is ensured, and longitudinal passing angles can meet related requirements of finished automobile design. Through reasonable arrangement and a simply fixing manner, a maximum power volume is ensured, the utilization rate of interior spaces of the power batteries is ensured, and reasonable distribution of load of both a front axle and a real axle of the finished automobile is facilitated; in addition, the strength of a connection structure of the power battery pack and the auto body is high, the stability of the power battery packs is improved, and stable operation of the automobile is facilitated.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a distributed four-wheel in-wheel motor-driven electric vehicle power battery and an optimal layout formed in the vehicle. Background technique [0002] At present, with the sustainable development of the global automobile industry facing the huge challenges of energy and environmental issues, people have begun to study the use of electric motors instead of gasoline engines to manufacture electric vehicles. Due to the limitations of existing models, pure electric vehicles modified by traditional vehicles lead to unreasonable layout of vehicle parts, difficulty in system matching, large body weight, and small effective passenger space, which cannot give full play to the advantages of electric vehicles; The frame structure of pure electric vehicles is too simple, the overall structure of the frame has low rigidity, poor safety, and it is difficult to meet the requirements...

AI Technical Summary

Problems solved by technology

[0005] At present, the layout of the power battery is partly distributed, and multiple batteries are fixed in the front cabin, under the body floor, and in the space available for the trunk light. This form is not convenient for installing and removing the battery pack.

At the same time, the ambient temperature of the battery in the trunk is different from that of the battery under the body floor, which is not convenient for the design of the vehicle's thermal management system

In addition, if the battery is arranged separately in the front cabin or the trunk, it will cause uneven distribution of front and rear a

Images