Frame structure for pure electric vehicle

Abstract

The invention discloses a frame structure for a pure electric vehicle. The frame structure adopts a four longitudinal beam space structure, and consists of a middle-through-type H-type structure formed by double frame longitudinal beams and cross beams, side beam structures on the two sides of the frame, a front strengthening structure and a back battery cabin strengthening structure together. The middle H-type structure can ensure the rigidity of the whole vehicle body structure, and can effectively improve the torsion resistance of the frame; the front strengthening structure and the back battery cabin strengthening structure can effectively improve the safety of front collision and back collision, relieve deformation of a driving cabin when in collision, and provide safety protection for passengers at the greatest extent. Compared with the traditional frame structure, according to the technical scheme, the safety of front collision, side collision and back collision can be effectively improved, meanwhile the torsion resistance of the frame structure can be effectively improved, the mounting strength and the finished vehicle rigidity of a chassis system can be ensured, and the properties of the driving smoothness, the controllability, the trafficability and the like are all considered.

Description

technical field [0001] The invention relates to a vehicle frame structure, in particular to a pure electric vehicle frame structure. Background technique [0002] The vast majority of modern cars have a frame that acts as the backbone of the entire vehicle. Most of the parts and assemblies of the car are fixed by the frame, such as the engine, drive train, suspension, steering system, cab, cargo box and related operating mechanisms. The frame plays the role of supporting and connecting various parts of the car, and bears various loads from inside and outside the car. During the complex driving process of the car, there should be no interference between the assemblies and components fixed on the frame. When the car is running on rough roads, the frame may undergo torsional deformation and bending deformation in the longitudinal plane under load; when one wheel encounters an obstacle, the entire frame may be twisted into a diamond shape. These deformations will change the r...

AI Technical Summary

Problems solved by technology

The vehicle frame structure in the prior art has the following defects: 1. The strength and rigidity of the vehicle frame are small, and the vehicle body will be deformed

2. The front impact and side impact effects of the frame are poor; 3. The frame is relatively bulky, and the redundant repetitive structure increases its mass and high manufacturing cost

The main disadvantages of the load-bearing body: 1. Due to the cancellation of the frame, the vibration and noise from the drive train and suspension will be directly transmitted to the body, and the car itself is a resonance box that is easy to form a cavity resonance, so it will be greatly deteriorated Riding comfort, for this reason, a large number of sound insulation and anti-vibration materials must be used, so that the cost and quality will increase; 2. It is difficult to modify

Images