Bulletproof structure and automobile

Abstract

The invention provides a bulletproof structure and an automobile. The bulletproof structure comprises a main bulletproof plate (6) and a bulletproof plate framework (1), wherein the bulletproof plate framework (1) is a structure of taking the shape of the Chinese character Ji, and is provided with a first mounting part (1) and a second mounting part (12); a low carbon steel welding strip is arranged between the bulletproof plate framework (1) and the main bulletproof plate (6); the main bulletproof plate (6), the low carbon steel welding strip and the bulletproof plate framework (1) are connected by means of laser welding; a plurality of welding channels (3) are arranged; under a condition that the welding connection strength cannot meet the stress requirement, bolt connection is assisted. According to the bulletproof structure disclosed by the invention, the problem that a heat influence zone of welding the framework and the bulletproof plate by adopting a conventional electric arc welding process is large so that the protection performance of the bulletproof plate is reduced and a protection index cannot reach is solved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a bulletproof structure and an automobile. Background technique [0002] When the body frame of the car is connected to the bulletproof plate, welding is usually used. The body frame is made of ordinary steel for automobile structure, with a "U-shaped" structure in section and a plate thickness within 3mm. The thickness of the bulletproof plate is less than 5mm, the hardness of the bulletproof plate is in the high hardness range, the cold bending performance of the bulletproof plate is good, and it meets the requirements of a certain bulletproof index without welding. The skeleton and bulletproof plate are welded by traditional arc welding process, and the heat-affected zone of welding is relatively large, resulting in a decrease in the protective performance of the weld. After the gunshot test, the bulletproof plate was broken down and could not meet the protection index requirements....

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a bulletproof structure and a vehicle, the purpose of which is to solve the problem that the traditional arc welding process has a large heat-affected zone on the welding of the skeleton and the bulletproof plate, which reduces the protective performance of the bulletproof plate and fails to reach the protection index.

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