Metallized Carbon Cable Layer for Weight and Conductivity
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Solution Overview
Problem
Conventional electrical cables with metal armor suffer from increased weight, reduced flexibility, and suboptimal electrical properties due to the Joule effect, necessitating oversized conductors and non-optimal electrical performance.
Innovation Solution
An electric cable design featuring an elongated conductive element surrounded by a polymeric layer, with a metallized carbon material layer comprising over 50% carbon atoms, providing improved electrical conductivity, flexibility, and electrostatic shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal armor layers are used to preserve mechanical integrity, then mechanical resistance is improved, but weight increases and flexibility is reduced
Solution Approach 1:
The patent applies composite materials by combining carbon fibers with metallic layers to create a metallized carbon material. This composite structure provides both the mechanical strength needed for cable armor and the electrical conductivity required for electrostatic protection, while being lighter than traditional metal armor alone
Solution Approach 2:
The patent changes the material parameters by using carbon fibers with specific electrical conductivity properties and metallizing them to achieve optimal balance between mechanical resistance, weight, and electrical conductivity. The carbon fiber content and metallic coating thickness are optimized to resolve the contradiction
2Strength
If metal armor layers are used to preserve mechanical integrity, then mechanical resistance is improved, but flexibility is reduced
Solution Approach 1:
The composite structure of carbon fibers combined with metallic layers creates a material that is both strong and flexible. The carbon fiber base provides flexibility while the metallic coating adds strength, resolving the contradiction between mechanical resistance and flexibility
Solution Approach 2:
The metallized carbon material functions as a flexible shell that can conform to the cable structure while providing mechanical protection. The thin film nature of the metallized layer maintains flexibility while adding protective properties
3Strength
If metal armor layers are used, then mechanical integrity is improved, but electrical losses due to Joule effect increase
Solution Approach 1:
The patent substitutes traditional metal armor with a metallized carbon fiber composite that has superior electrical conductivity properties. This replacement reduces Joule effect losses while maintaining or improving mechanical integrity through the composite structure
Solution Approach 2:
The composite material combines carbon fibers with metallic layers to create a structure that minimizes electrical resistance and Joule heating while providing mechanical protection, resolving the energy loss contradiction
4Ease of manufacture
If traditional cable structure is used, then manufacturing is simple, but electrostatic protection and electric field distribution are insufficient
Solution Approach 1:
The metallized carbon material layer serves multiple functions simultaneously: it provides mechanical protection, electrostatic shielding, and electric field distribution. This multi-functionality improves reliability without significantly complicating the manufacturing process
Solution Approach 2:
The composite metallized carbon structure integrates multiple protective properties in a single layer, providing both mechanical strength and electrostatic protection, thereby improving reliability while maintaining manufacturing feasibility
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 results in a lightweight cable with enhanced specific conductivity and electrostatic protection, optimizing electric field distribution and providing a barrier to external electrostatic fields while maintaining mechanical integrity.
Implementation Method 1
this screen makes it possible in particular to equipotentially distribute the electric field inside the cable and/or to provide a barrier to electrostatic fields external to the cable and/or to flow capacitive or short-circuit currents along the cable
Implementation Method 2
this screen makes it possible in particular to equipotentially distribute the electric field inside the cable
Implementation Method 3
to provide a barrier to electrostatic fields external to the cable
Data Source
Figure 1
AI summary
The present invention relates to an electrical cable (1) comprising at least one elongated electrically conductive element (2) surrounded by at least one polymeric layer (3), characterized in that said polymeric layer (3) is surrounded by at least one metallized layer of a carbon material (4), said carbon material comprising more than 50% by weight of carbon atoms relative to the total weight of the carbon material.