Composite Cable Shielding with Copper and Iron Wires
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Solution Overview
Problem
Current composite cables face challenges in effectively shielding against different physical fields due to the varying shielding capabilities of metals, making it difficult to prevent interference between signal and power lines and the external environment.
Innovation Solution
A composite cable design incorporating a shield made of different kinds of metal wires, including electric-shielding copper wires and magnetic-shielding iron wires, arranged in a netlike structure to provide comprehensive shielding across various physical fields, while the signal and power lines are separated by insulating layers within a sheath.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single metal net is used for shielding, then the cable structure is simple, but the shielding capability against different physical fields (electric and magnetic) is insufficient
Solution Approach 1:
The patent applies composite materials by combining different metal wires (copper for electric field shielding, iron for magnetic field shielding) into a single shield layer. This composite structure enables the shield to simultaneously protect against multiple types of electromagnetic interference that a single metal could not effectively block
Solution Approach 2:
The shield is segmented into different functional components with distinct metal wires assigned to different shielding purposes. Copper wires specifically target electric field interference while iron wires address magnetic field interference, allowing each material to perform its specialized function within the integrated shield structure
2Adaptability or versatility
If signal line and power line are integrated in the same cable, then the cable has high integration, but interference between signal and power transmission occurs
Solution Approach 1:
The shield acts as an intermediary barrier between the signal line and power line within the integrated cable. By positioning the shield to surround the signal line while being in close proximity to the power line, it mediates the electromagnetic interaction between them, preventing interference while maintaining the integrated cable structure
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 cable achieves excellent shielding performance for diverse interference requirements, ensuring effective isolation of signals and power supply lines from external interference and maintaining stability by optimizing the arrangement of wire assemblies within the cable.
Implementation Method 1
the electric-shielding metal wire comprises a copper wire
Implementation Method 2
the magnetic-shielding metal wire comprises an iron wire
Data Source
AI summary
The present disclosure relates to a composite cable, which comprises a first wire assembly and a second wire assembly, and each wire of the second wire assembly is surrounded by an insulating layer. The composite cable further comprises: a sheath made of insulating material and configured to enclose the first wire assembly and the second wire assembly; and a shield comprising different kinds of metal wires and configured to surround the first wire assembly, wherein the first wire assembly is capable of transmitting signals, and the second wire assembly is capable of transmitting power supply. The composite cable according to the present disclosure is excellent in shielding performance for different requirements.