Test device used for simulating collisions of cell pack bottom of electric automobile

Abstract

The invention relates to a test device used for simulating collisions of a cell pack bottom of an electric automobile. The test device comprises a device body. The device body comprises a collision trolley and a cell pack fixing seat. The test device is characterized in that the test device also comprises a collision component connected with the front end part of the collision trolley, a ramp under a cell pack, a trolley traction rail longitudinally arranged on the ground, and trolley buffering components which are arranged between the collision trolley and the cell pack fixing seat and on two sides of the middle part of the trolley traction rail. According to the invention, the process that the cell pack bottom suffers the collision from the bottom of the automobile in a real automobile moving process can be quite truly and precisely simulated; fixation of different sizes of cell packs can be achieved; collision tests for different positions of the cell pack bottom can be performed according to experiment requirements; the test device is highly adaptive and universal without complex control systems, and operates stably and reliably; and the whole device can be disassembled and assembled repeatedly, and is easy to reconstruct and maintain, high in intensity and low in cost and risks in the aspect of the real automobile collisions.

Description

technical field [0001] The invention relates to an electric vehicle, in particular to a test device for simulating the impact of the battery pack bottom of the electric vehicle. Background technique [0002] As an important part of new energy vehicles, electric vehicles have become an important product in the field of new energy vehicles. As one of the key components of electric vehicles, the safety performance of batteries directly affects the safety performance of electric vehicles. In order to meet the mileage requirements and be limited by the structural layout, electric vehicle battery packs are generally installed at the bottom of the vehicle. With the gradual increase in the number of electric vehicles, their operating conditions have become more and more complex, and there have been many electric vehicle fire accidents caused by vehicle bottom collisions. In order to improve the safety performance of electric vehicle bottom crash, it is necessary to study the batte...

AI Technical Summary

Problems solved by technology

The front and rear tires of the vehicle are different in size, so that the vehicle can be pitched at a certain angle to allow obstacles to hit the bottom of the battery pack. To achieve impacts at different positions on the bottom of the battery pack, it is necessary to adjust the size of the front and rear tires to be different, which leads to the universality of the device. Poor sex

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