An energy-absorbing protective battery box

Abstract

The invention provides a protective energy-absorbing battery box. Since the anti-collision beam is made of high-strength steel and sine wave ribs, it is not easy to deform during the collision of the battery box, and the sine wave ribs can reduce the peak force during the collision. Keeps the battery safe and therefore offers good crashworthiness. The energy-absorbing column adopts a combination of hexagonal honeycomb structure and square structure. During crash crushing, the honeycomb structure absorbs a large amount of energy through plastic deformation. At the same time, there is also a square structure in the energy-absorbing column, which provides a large number of corner units that can also absorb energy during a collision to protect the safety of the battery. The battery press plate adopts a sandwich structure, and the inner layer is a self-similar structure composed of isosceles trapezoid and rectangle. The yield strength and energy absorption capacity of the press plate can be adjusted by changing the number of self-similar layers and the self-similar ratio, so it has good energy absorption. The above-mentioned protective energy-absorbing battery box can provide sufficient energy-absorbing buffer when a collision occurs.

Description

technical field [0001] The invention relates to the field of electric vehicle battery components, more specifically, the invention is a protective energy-absorbing battery box. Background technique [0002] In recent years, with the rapid development of new energy vehicles, the safety of the vehicle's power battery box has gradually become a key research topic. In today's automobile market, the proportion of new energy vehicles is increasing year by year. Although new energy vehicles have more advantages than traditional vehicles in terms of energy consumption and environmental issues, in the event of a collision, the batteries of new energy vehicles are prone to fire, burn or even explode, endangering the personal safety of drivers. In order to improve the anti-collision performance of the automobile lithium battery box and improve the driving safety of the car, it is necessary to improve the existing battery box. Therefore, it has very important practical significance an...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the insufficient protection of the battery box of the existing electric vehicle, and to design a protective energy-absorbing battery box, which can provide sufficient buffer energy absorption when the car collides, and meet the needs of the battery during daily use. Protection requirements in

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