Reinforcing structure for large support of engine cabin

Abstract

The invention discloses a reinforcing structure for a large support of an engine cabin. The structure comprises a left longitudinal beam, a right longitudinal beam, a rear cross beam, a front cross beam and reinforcers, the front end and the rear end of the left longitudinal beam are connected with the left end of the front cross beam and the left end of the rear cross beam respectively, the frontend and the rear end of the right longitudinal beam are connected with the middle of the front cross beam and the middle of the rear cross beam respectively, and the left end and the right end of thereinforcing piece are connected with the middle of the left longitudinal beam and the middle of the right longitudinal beam respectively. The invention provides a reinforcing structure for a large support of an engine cabin. The bending resistance of the engine cabin large bracket can be improved; the overall strength of the engine cabin large bracket is improved; after the front suspension of the engine suspension system is canceled, the strength of the engine cabin large bracket can still meet the strength requirement, the situation of vehicle abnormal sound or vehicle power abnormality inthe forming process is prevented, and the safety performance of a vehicle is improved, so that the suspension system can be optimized, and the purposes of reducing the cost and reducing the weight ofthe whole vehicle are achieved.

Description

technical field [0001] The invention relates to the technical field of automobile bodies, in particular to a large bracket reinforcement structure for an engine nacelle. Background technique [0002] The electric drive system of a traditional new energy vehicle is connected to the body through a large bracket in the engine room and a four-point mount. The large bracket in the engine room must have sufficient strength and rigidity to ensure the safe driving of the vehicle. The weight of the whole vehicle has a great impact on the battery life of new energy vehicles. For the lightweight design of the whole vehicle and the cost control of the suspension system, the four-point suspension system can be changed to a three-point suspension system. The suspension system of four-point suspension is composed of front suspension, rear suspension, left suspension and right suspension. The large bracket of the engine room is connected with the electric drive system, and the left and righ...

AI Technical Summary

Problems solved by technology

When the front mount is canceled, the four-point mount system becomes a three-point mount system. Through finite element analysis, the stress at the weld of the left beam and longitudinal beam exceeds the tensile strength of the material, and the strength of the large bracket of the entire engine room cannot If the requirements are met, it may cause abnormal noise or abnormal power of the vehicle during driving, which will directly affect driving safety. Therefore, the structure of the large bracket in the engine room must be optimized.

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