Integrated Front Engine Compartment Framework for Collision Energy Transfer
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Solution Overview
Problem
The existing vehicle body structures for electric vehicles face difficulties in manufacturing and matching components, leading to inefficiencies in collision energy transmission from the front longitudinal beam to the sill longitudinal beam, resulting in reduced collision energy efficiency.
Innovation Solution
A vehicle body front engine compartment framework with an integrally-formed front longitudinal beam rear section member, comprising a base part and two side parts connected to a cross beam, using a connecting unit with multiple sled boards to support force transmission, and incorporating rib assemblies for enhanced structural strength and collision safety, all made from C611 aluminum alloy without heat treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate components are used to form the front longitudinal beam rear section structure, then the structural complexity and manufacturing flexibility are improved, but the manufacturing matching difficulty increases and collision energy transmission efficiency decreases
Solution Approach 1:
The patent merges the base part, first part, and second part into an integrally-formed structure through casting or extrusion processes. This integration eliminates the need for separate components and their associated connections, directly resolving the component matching precision issue while maintaining structural flexibility through the unified design
2Ease of operation
If multiple separate components are connected using bolts and gluing, then the ease of assembly is improved, but the collision energy transmission efficiency decreases due to connection interfaces
Solution Approach 1:
By combining multiple components into a single integrally-formed structure, the patent eliminates connection interfaces such as bolt holes and glue joints. This removes the energy loss pathways at connection points while the modular design (base part, first part, second part) still allows for relatively easy assembly through the connecting unit with sled boards
3Ease of repair
If multiple separate components are used, then the ease of repair and replacement is improved, but the production efficiency decreases due to additional connection processes
Solution Approach 1:
The integrally-formed structure eliminates multiple connection processes (bolting, gluing) that reduce production efficiency. The unified component can be manufactured in fewer steps and assembled more quickly, directly improving productivity while the modular design with connecting units still facilitates repair and replacement when needed
Data Source
AI summary
The disclosure relates to the technical field of vehicle body structures, and in particular provides a vehicle and a vehicle body front engine compartment framework thereof, the vehicle body front engine compartment framework comprising: two front longitudinal beams; a front longitudinal beam rear section member arranged between the two front longitudinal beams; and a cross beam located behind the front longitudinal beam rear section member in a length direction of the vehicle, wherein the front longitudinal beam rear section member comprises a base part, and a first part and a second part which are located on two sides of the base part in a width direction of the vehicle, and the base part is connected to the cross beam; and at least some of the base part, the first part and the second part are of an integrally-formed structure. With such a configuration, a structural form of the vehicle body front engine compartment framework is provided. Moreover, for the front longitudinal beam rear section member, since difficulties in the manufacture of different parts themselves and in matching between components are reduced, the product consistency is improved.