Vehicle Load-Bearing Structure with Framework Junctions
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Solution Overview
Problem
Current load-bearing structures for motor vehicles are either heavy or expensive to produce, failing to balance simplicity, cost-effectiveness, and high load-bearing capacity.
Innovation Solution
A load-bearing structure comprising hollow profiles connected by junction elements with areal webs that form a framework, produced through extrusion, impact extrusion, or pultrusion, and featuring receptacles for adhesive bonding, along with a core for additional support and acoustic insulation, allowing for efficient and lightweight construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If light metal cast junctions and plastic junctions are used, then load-bearing capacity is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent changes the manufacturing method from casting to extrusion, transforming the production process into a more simple and cost-effective operation while maintaining the load-bearing capacity through optimized areal web geometry and framework structure
Solution Approach 2:
The junction elements combine areal webs forming a framework structure with hollow profiles, creating a composite construction that achieves high load-bearing capacity through the synergistic arrangement of different structural elements rather than relying on heavy materials
2Strength
If complex junction elements are used to ensure high load-bearing capacity, then strength is improved, but production cost increases
Solution Approach 1:
The junction elements are segmented into multiple areal webs that form a framework structure, allowing each web to be optimized for specific load paths while maintaining overall structural integrity, and enabling standardized extrusion production
Solution Approach 2:
The patent transitions from traditional 3D cast junctions to 2D areal webs arranged in a framework, simplifying the manufacturing process while maintaining strength through the dimensional arrangement and geometric optimization of the webs
3Stability of the object's composition
If traditional junction elements are used, then connection stability is achieved, but acoustic insulation is insufficient
Solution Approach 1:
The core is nested within the hollow profile, creating a layered structure where the inner core provides acoustic insulation while the outer hollow profile maintains structural integrity and connection stability
Solution Approach 2:
The combination of core material and hollow profile creates a composite structure that simultaneously provides mechanical strength for stable connections and acoustic insulation properties by dampening sound transmission through the layered construction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the creation of a stable, lightweight load-bearing structure with high load capacity that is simple and inexpensive to produce, while also providing acoustic insulation and ease of repair.
Implementation Method 1
at least some of the areal webs form a framework structure which assists the load path in the respective junction element
Implementation Method 2
fastening the hollow profiles in receptacles of the junction elements
Data Source
AI summary
A load-bearing structure of a motor vehicle, having hollow profiles and junction elements to connect the hollow profiles. The hollow profiles may be fastened in receptacles of the junction elements, and the junction elements may have a plurality of areal webs in a vehicle vertical direction, at least some of the areal webs forming a framework structure which assists the load path in the respective junction element.