Shielded Data Cable Layout for Stable High-Speed Transmission
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Solution Overview
Problem
Conventional data transmission cables lack signal transmission stability due to the absence of shielding, leading to poor performance in high-speed and long-distance signal transmission.
Innovation Solution
A data transmission cable design featuring juxtaposed wires enclosed by a plastic layer and a metallic shielding layer on both sides, with the shielding layers not extending beyond the plastic layer, providing effective external interference shielding and facilitating production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metallic shielding layer is added to shield external interference, then signal transmission stability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The metallic shielding layer is divided into two separate shielding layers positioned on opposite sides of the plastic layer, rather than using a single continuous shield. This segmentation reduces manufacturing complexity while maintaining effective electromagnetic interference protection for the wires enclosed within the plastic layer.
Solution Approach 2:
The shielding layers are positioned only where needed - on the outer sides of the plastic layer - rather than enclosing the entire cable in a continuous shield. This localized approach provides adequate protection for signal transmission while simplifying the overall structure and reducing material usage.
2Reliability
If the metallic shielding layer extends beyond the plastic layer, then shielding effectiveness is improved, but manufacturing convenience and production efficiency deteriorate
Solution Approach 1:
The shielding layer configuration is designed asymmetrically relative to the plastic layer boundaries - the shielding layers are confined within the width of the plastic layer rather than extending beyond it. This asymmetric design simplifies the lamination process and alignment during manufacturing while maintaining adequate shielding coverage for the enclosed wires.
Solution Approach 2:
The plastic layer is formed to enclose the wires first, establishing a defined boundary, and then the metallic shielding layers are laminated to the outer sides of this pre-formed plastic layer. This sequence of preliminary action ensures proper positioning and alignment, making the manufacturing process more convenient and efficient.
3Reliability
If multiple shielding layers are added to reduce signal attenuation and crosstalk, then signal transmission quality is improved, but production efficiency and manufacturing speed decrease
Solution Approach 1:
The two metallic shielding layers are laminated simultaneously or in sequence to the outer sides of the plastic layer during a single manufacturing operation, rather than adding them separately in multiple steps. This merging of operations maintains the dual-shielding benefit for signal quality while preserving high production efficiency.
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 ensures stable high-speed signal transmission by shielding external interference and allowing for convenient and efficient production, reducing signal attenuation and crosstalk while maintaining a thin cable thickness.
Implementation Method 1
a metallic shielding layer arranged on an outer side of the plastic layer. The metallic shielding layer defines a first shielding layer and a second shielding layer separated from each other and opposite to each other
Data Source
AI summary
A data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic shielding layer arranged on an outer side of the plastic layer. The metallic shielding layer defines a first shielding layer and a second shielding layer separated from each other and opposite to each other, the first shielding layer and the second shielding layer cover opposite sides of the plastic layer in a direction perpendicular to an arrangement direction of the wires, and both lateral edges of the first shielding layer and the second shielding layer in a width direction do not extend beyond the plastic layer.