Vehicle Bodywork Composite for 5G Signal Transmission
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Solution Overview
Problem
Conventional fiber-reinforced plastic bodywork components, such as vehicle roofs, often exhibit strong shielding effects on radio signals like 5G signals, negatively impacting signal reception, while attempting to balance minimal weight and high stability with adequate radio signal transmissibility.
Innovation Solution
A bodywork component comprising a base element and a transmission element of fiber-reinforced plastic, where the transmission fibers have higher radio signal transmissibility than the base fibers, allowing for a weight-optimized and stable design with improved radio signal communication, achieved through a smooth, continuous surface geometry and a substance-to-substance bond between the elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional carbon fiber-reinforced plastic is used for bodywork components, then high stability and minimal weight are achieved, but radio signal transmissibility deteriorates due to strong shielding effects
Solution Approach 1:
The patent applies composite materials by combining carbon fiber-reinforced plastic (for structural stability) with glass fiber-reinforced plastic (for radio signal transmissibility) in a single bodywork component. The component consists of multiple layers with different fiber types, creating a composite structure that simultaneously achieves mechanical strength and electromagnetic wave transmission properties.
2Object-affected harmful factors
If component thickness is reduced to improve radio signal transmissibility, then signal communication improves, but mechanical stability and weight optimization deteriorate
Solution Approach 1:
The patent applies local quality by assigning different fiber types to different regions/layers of the bodywork component. Specific layers use glass fiber-reinforced plastic with higher radio wave transmission properties, while other layers use carbon fiber for structural strength. This localized differentiation allows the component to simultaneously achieve adequate thickness for mechanical stability and sufficient radio signal transmissibility in critical areas.
3Object-affected harmful factors
If alternative fiber composite materials are used to improve radio signal transmissibility, then signal communication improves, but manufacturing complexity increases
Solution Approach 1:
The patent merges multiple fiber-reinforced plastic materials (carbon fiber and glass fiber composites) into a single integrated bodywork component. Instead of assembling separate components with different materials, the invention combines them in one molded part, simplifying the overall manufacturing process while achieving the desired radio signal transmission properties.
Data Source
AI summary
A bodywork component for a vehicle includes a base element and a transmission element. The base element has fiber-reinforced plastic with base fibers. The transmission element has fiber-reinforced plastic with transmission fibers. The transmission fibers are configured to enable radio signal communication through the transmission element, and have a higher radio signal transmissibility than the base fibers.