Communication Cable Jacket with Support Arms for Cat.6A Interference

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Solution Overview

Problem

Higher-grade communication cables like Cat.6A and Cat.7 require metal shielding to minimize interference between adjacent cables, but this adds complexity and cost to the manufacturing process.

Innovation Solution

A communication cable design that uses a modified external jacket with separation means, such as support arms or grooves, to maintain a separation space and prevent contact between the cable core and the jacket, eliminating the need for a metal shielding layer while maintaining the required transmission standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a metal shielding layer is added to cover each pair of wires or cable core, then external interference between adjacent cables is minimized, but manufacturing complexity and cost increase

Engineering Contradiction:
Improveexternal interferenceVSAvoidmanufacturing complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent removes the metal shielding layer from the cable structure entirely. Instead of adding shielding to minimize interference, the invention extracts this component and replaces it with a modified external jacket structure that achieves the same interference minimization through geometric separation rather than electromagnetic shielding.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses the external jacket as a flexible shell structure with integrated separation means. The jacket includes protrusions or ridges that create physical separation between adjacent cables, forming air gaps that reduce interference without requiring rigid metal shielding layers.

Inventive Principle:
Principle #30Flexible shells and thin films

2Object-affected harmful factors

If a metal shielding layer is added to cover each pair of wires or cable core, then external interference between adjacent cables is minimized, but manufacturing cost increases

Engineering Contradiction:
Improveexternal interferenceVSAvoidmanufacturing cost
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent removes the metal shielding layer from the cable structure entirely. Instead of adding shielding to minimize interference, the invention extracts this component and replaces it with a modified external jacket structure that achieves the same interference minimization through geometric separation rather than electromagnetic shielding.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the function of the external jacket with the interference minimization function. The separation means are integrally formed with the external jacket, combining what would traditionally be separate components (jacket and shielding) into a single unified structure that performs both protection and interference reduction.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If the cable core contacts the inner surface of the external jacket, then manufacturing is simpler, but interference between adjacent cables increases

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidinterference between adjacent cables
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent uses the external jacket as a flexible shell structure with integrated separation means. The jacket includes protrusions or ridges that create physical separation between adjacent cables, forming air gaps that reduce interference without requiring rigid metal shielding layers.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent addresses interference not by adding radial shielding layers, but by creating separation in the longitudinal dimension through the length of the protrusions along the cable. This dimensional approach to separation reduces interference while maintaining manufacturing simplicity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10573431B2Communication cable
Publication Date: 2020.02.25 LS CABLE & SYST LTD
  • US10573431B2 patent drawing
  • US10573431B2 patent drawing
  • US10573431B2 patent drawing

AI summary

A communication cable includes a cable core including a plurality of pairs of wires, each of the pairs of wires being formed by spirally twisting two wires including conductors covered with an insulator, and an external jacket configured to cover an outer side of the cable core, where the external jacket includes a plurality of support arms to prevent contact between the cable core and an inner surface of the external jacket and to secure a separation space in a radial direction, the plurality of support arms being integrally formed with the external jacket, and each of the plurality of support arms including a connection part connected to the inner surface of the external jacket and a support part having an increased width at an end portion of the connection part to support the cable core, thereby enabling the communication cable to satisfy a standard of Cat.6A or higher.