Vehicle Trim Panel Composite Layering for Recycled Material Integration
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Solution Overview
Problem
The integration of recycled materials into vehicle interior trim panels is hindered by safety and aesthetic constraints, as existing solutions struggle to meet mechanical performance, safety standards, and aesthetic requirements simultaneously.
Innovation Solution
A trim panel design featuring a rigid support layer of thermoplastic material, such as polypropylene, combined with a non-woven textile covering layer comprising a mixture of thermoplastic and textile fibers, allowing for the incorporation of recycled materials while maintaining mechanical performance and safety standards, and accommodating aesthetic demands through varying physicochemical compositions and layer configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If recycled materials are integrated into trim panels, then carbon footprint is reduced, but mechanical performance and safety requirements are compromised
Solution Approach 1:
The patent applies composite materials by combining a rigid support layer made of thermoplastic material with a coating layer made of non-woven textile material. This composite structure allows the rigid support layer to provide mechanical strength and safety while the coating layer incorporates recycled textile fibers to reduce carbon footprint. The two layers work together to simultaneously achieve structural integrity and environmental sustainability.
Solution Approach 2:
The patent segments the trim panel into two distinct functional layers: a rigid support layer and a coating layer. This segmentation allows each layer to be optimized for its specific function - the support layer for mechanical performance and safety, and the coating layer for incorporating recycled materials and providing aesthetic appearance. This division resolves the contradiction by allowing recycled materials to be used in the coating layer without compromising the structural integrity provided by the support layer.
2Object-generated harmful factors
If recycled materials are integrated into trim panels, then carbon footprint is reduced, but aesthetic requirements are compromised
Solution Approach 1:
The composite structure allows the coating layer to be made from recycled textile fibers while maintaining aesthetic appearance. The non-woven textile material provides a fabric-like appearance that meets cosmetic requirements, while the rigid support layer underneath ensures structural integrity. This composite approach enables the use of recycled materials without sacrificing aesthetic quality.
Solution Approach 2:
The patent applies local quality by giving different layers different functions and material properties. The coating layer is specifically designed with aesthetic considerations in mind, using textile fibers that provide visual appeal, while the support layer focuses on structural properties. This localized optimization allows recycled materials to be used in the coating layer for aesthetic applications without compromising overall appearance.
3Ease of manufacture
If a single-layer structure is used, then manufacturing is simpler, but it is impossible to simultaneously meet mechanical performance, safety, and aesthetic requirements
Solution Approach 1:
The patent segments the trim panel into two distinct layers, each optimized for specific functions. The rigid support layer handles mechanical performance and safety requirements, while the coating layer handles aesthetic requirements and incorporates recycled materials. This segmentation increases manufacturing versatility, allowing each layer to be produced and optimized independently before assembly, thereby meeting multiple requirements simultaneously.
Solution Approach 2:
The composite two-layer structure enables the trim panel to meet diverse requirements that a single-layer structure cannot satisfy. By combining materials with different properties - rigid thermoplastic for structural integrity and flexible textile for aesthetics and recycled content - the patent achieves adaptability to meet mechanical, safety, and cosmetic requirements while maintaining a relatively simple manufacturing process through layer assembly.
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 integration of recycled materials in vehicle trim panels, reducing carbon footprint while ensuring safety and aesthetic compliance, thus addressing the limitations of existing solutions.
Implementation Method 1
a step of binding the mixture of carded fibers so as to obtain a non-woven textile type material
Data Source
Figure 1~4
Figure 5
AI summary
The invention relates to a piece (1) of trim panel for vehicle interior, comprising: - a rigid support layer (2), this support layer (2) comprising predominantly at least one thermoplastic, in particular of the polypropylene type, - a coating layer (3), of the non-woven textile type, superimposed, directly or indirectly, on the support layer (2), this coating layer (3) comprising at least one mixture of thermoplastic fibers, of the polypropylene or polyester type, and textile fibers, according to a physicochemical composition different from that of the support layer (2).