Rear floor body structure and rear floor assembly structure with rear engine

Abstract

A rear floor mechanical structure comprises a first main body floor, a third main body floor and a second main body floor for connecting the first main body floor and the third main body floor. The first main body floor, the second main body floor and the third main body floor are distributed in a shape of a ladder, and an abnormal-shaped hole is arranged on the first main body floor to distribute an engine. The rear floor mechanical structure is in a shape of a ladder, space problems of small cars with compact location are sufficiently considered, and relative distribution requirements are met. Compared with conventional straight-line-shaped floor mechanical structures, a ladder-shaped rear floor has good strength. The rear floor mechanical structure further discloses a rear floor assembly structure with the rear floor mechanical structure. A rear seat pad installation plate assembly is fixedly arranged on the second main body floor, a rear floor middle beam assembly is fixedly arranged on the third main body floor, a safety belt lock catch through hole is further arranged on the second main body floor, and the safety belt lock catch through hole is located below the rear seat pad installation plate assembly.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a rear floor structure of a vehicle, in particular to a rear floor structure with a rear engine. Background technique [0002] In order to ensure the high reliability and high trackability of the vehicle, some small cars with the theme of compactness, environmental protection and novelty will arrange the engine at the back. With the arrangement of the rear of the engine, some components are moved from the front of the car to the rear, and the weight distribution between the front and rear of the car is likely to be close to 50:50. Since the weight is concentrated at the rear of the car, the engine is very close to the drive shaft, so the drive wheels The load is large, the traction force is large when starting and accelerating, the transmission efficiency is high, and the fuel economy is good, which greatly improves the balance and handling of the car. However, after adopting ...

AI Technical Summary

Problems solved by technology

However, after adopting the rear-mounted layout of the engine, the conventional one-shaped rear floor structure cannot meet the structural strength requirements of the floor body of the rear-engine model, the matching requirements of the rear floor body and others, and the NVH (Noise (noise) of the whole vehicle. ), Vibration (vibration), Harshness (acoustic roughness)) performance requirements can not be met, therefore, it is necessary to provide a rear floor structure for cars with rear engines to meet the above requirements

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