Engine hood reinforcing structure

Abstract

The invention relates to an engine hood reinforcing structure which comprises an engine hood reinforcing plate, a hinge mounting hole used for mounting an engine hood hinge and an air supporting rod support mounting hole used for mounting an air supporting rod support are formed in the engine hood reinforcing plate, and the engine hood reinforcing plate is connected with an engine hood inner plate through spot welding. According to the engine hood reinforcing plate, the hinge reinforcing plate and the air supporting rod reinforcing plate are integrated together, the hinge shaft, the engine hood reinforcing plate and the air supporting rod vehicle body reinforcing plate form a triangular structure, and stability is good; After the hinge reinforcing plate and the air supporting rod reinforcing plate are integrated, the reinforcing plate is large in size and fixed to an engine cover inner plate through a plurality of welding spots, and rigidity is good. A double-reinforcing structure is arranged at the hinge, and a single-reinforcing structure is arranged at the air supporting rod, so that the overall rigidity and modality of the engine hood are improved, the stress of the inner plate of the engine hood is optimized, welding spots and the inner plate of the engine hood are prevented from cracking, and the overall durability and NVH performance of the engine hood are improved.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an engine cover reinforcement structure. Background technique [0002] In order to improve the user experience and the safety of the hood, more and more cars are using gas struts instead of mechanical struts. [0003] The existing automobile engine hood is equipped with two reinforcing plate parts for the reinforcement of the hinge and the gas strut respectively. The hood inner panel is connected; and the size of the hinge reinforcement plate and the gas strut reinforcement plate of the existing automobile engine hood is small, and the self-positioning method is mostly used for positioning and fixing. [0004] Existing bonnets have the following disadvantages: [0005] 1. When the hood is closed, the rear end is fixed by the hinge shaft, and the front end is fixed by the hood lock. The supporting force of the gas strut equivalent to the weight of the hood always acts on the ...

AI Technical Summary

Problems solved by technology

The thickness of the engine hood inner plate is usually 0.5-0.7mm, the thickness of the engine hood reinforcement plate is usually 1.0-1.5mm, and the connection between the hinge reinforcement plate and the gas strut reinforcement plate is the engine hood inner plate, which has poor rigidity

The force on the hinge of the inner panel of the hood is much greater than that on the gas strut. The force on the inner panel of the hood is uneven at the hinge and the gas strut. During the durability process, the two reinforcing plates are prone to relative displacement, resulting in cracking of the solder joints and the inner panel. And other issues

[0006] 2. Due to the limitation of the structure of the inner panel of the engine hood, the size of the hinge reinforcement plate and the gas strut reinforcement plate is small, and often only the self-positioning method can be used for positioning, and the accuracy is poor

[0007] 3. The hinge reinforcement plate and gas strut reinforcement plate are set as two parts, and the manufacturing, logistics and management costs are relatively high

During the welding process with the welding bolts and projection welding nuts, and the assembly process with the inner panel of the hood, it is necessary to perform two positioning and two fixings, which takes a lot of time

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