Middle channel structure and electric automobile

Abstract

The invention discloses a middle channel structure which comprises a first area, a second area, a third area, a fourth area, a first transition area, a second transition area and a third transition area. Each transition area is connected with each subarea; the thickness of the first area ranges from 1.0 mm to 1.6 mm; the thickness of the fourth area is smaller than that of the first area; the thickness of the first area is smaller than that of the second area; the second area is thicker than the third area; the third area is thicker than the fourth area; the first preset multiple of the firstarea thickness is greater than the thickness of the second area; the second preset multiple of the thickness of the third area is greater than the thickness of the second area; the third preset multiple of the thickness of the fourth area is larger than the thickness of the third area. The invention further discloses an electric automobile applying the middle channel structure. All areas of the middle channel structure are arranged in different thicknesses; the crumple form of the center column of the structure during collision is changed, the deformation mode is good, the extreme value of collision force is reduced, and the safety performance of the battery pack and the safety of passengers in a passenger compartment are improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle parts, in particular to a middle channel structure and an electric vehicle. Background technique [0002] In recent years, electric vehicles have increasingly stringent requirements on battery life, environmental protection and safety protection. Designing lightweight and high-safety parts is an important problem in the electric vehicle industry, and it is also the development trend of the electric vehicle industry in the future. As one of the important parts of the lower body structure, the center tunnel constitutes the main frame of the passenger compartment and also bears the installation and load of the sub-instrument panel, and plays a role in improving the stiffness and modal of the front floor. And the important force transmission structure of the central column collision of the electric vehicle can absorb part of the collision force in the event of a collision, effectively reducin...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the existing mid-channel assembly structure forms a cross-section 121 with a sudden change in strength at the rear part of the mid-passage reinforcement plate 12. When the center pillar of the vehicle collides, the collision force is transmitted from the front to the rear and reaches the mid-passage reinforcement. The tail of the plate 12 tends to be collapsed and deformed to form a collapsed deformation zone 122. This deformation has little impact on the safety of fuel vehicles. However, since electric vehicles often arrange battery packs below the collapsed deformation zone, this position The collapse and deformation of the vehicle seriously affect the safety of the whole vehicle; at present, the safety is often improved by thickening the thickness of the middle channel body 11, but this method will greatly increase the weight and cost of the assembly

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