Gas Encapsulated Dual Layer Separator for Data Cable
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Solution Overview
Problem
Conventional data communications cables face issues with crosstalk between twisted pairs due to inadequate separation fillers, which also suffer from poor smoke- and flame-retardant properties, leading to increased signal loss and suboptimal manufacturing costs.
Innovation Solution
A gas-encapsulated dual layer separator is introduced, comprising an inner member and an outer layer that shapes to encapsulate gas pockets, reducing material usage and improving flame spread and smoke emission properties while maintaining electrical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If solid dielectric filler materials are used to separate twisted pairs, then physical separation distance is improved, but smoke emission and flame spread increase
Solution Approach 1:
The patent employs a foamed filler material with a cellular porous structure that reduces the amount of solid material while maintaining separation functionality. The porous structure allows the filler to provide physical separation between twisted pairs while significantly reducing smoke emission and flame spread compared to solid dielectric materials.
Solution Approach 2:
The patent uses composite filler materials that combine dielectric properties with flame retardant and smoke suppressant characteristics. This composite approach allows the filler to maintain electrical insulation and separation functions while improving fire safety performance by integrating materials with complementary properties.
2Object-generated harmful factors
If flame retardants and smoke suppressants are added to filler materials, then smoke emission and flame spread are reduced, but dielectric constant and dissipative factors increase
Solution Approach 1:
The foamed structure reduces the overall amount of filler material present in the cable, thereby reducing the total impact of flame retardants and smoke suppressants on the electrical properties. The cellular structure maintains separation effectiveness while minimizing the volume of material that could adversely affect dielectric characteristics.
Solution Approach 2:
The patent optimizes the concentration and type of flame retardant and smoke suppressant additives to achieve the necessary fire safety performance while minimizing their impact on dielectric constant and dissipative factors. This involves carefully controlling the composition and quantity of additives used in the filler material.
3Quantity of substance
If foamed filler material is used to reduce material amount, then smoke emission is reduced, but manufacturing precision deteriorates due to crushing and deformation
Solution Approach 1:
The patent incorporates reinforcement structures within the foamed filler material during manufacturing to pre-strengthen the separator against crushing and deformation. This preliminary reinforcement ensures that the foamed structure maintains its shape and separation characteristics throughout cable processing and installation, preventing compacting that would reduce pair separation.
4Object-generated harmful factors
If conventional foaming methods are used to reduce filler material, then smoke emission is reduced, but separation effectiveness decreases due to compaction
Solution Approach 1:
The patent applies preliminary reinforcement to the foamed filler structure during manufacturing to prevent subsequent compaction. This ensures that the reduced material volume from foaming does not lead to loss of separation distance, as the reinforced structure resists crushing and maintains its shape throughout cable processing and service.
Solution Approach 2:
The patent uses composite foamed materials that combine the smoke-reducing benefits of foaming with structural reinforcement elements that maintain separation effectiveness. This composite approach allows the filler to provide adequate pair separation while minimizing smoke emission, overcoming the limitations of conventional foamed fillers.
Data Source
AI summary
A data communications cable is disclosed herein. The data communications cable includes a plurality of twisted pairs of conductive wires and a separator between the plurality of twisted pairs of conductive wires. The separator includes an inner member and an outer layer being supported and shaped by the inner member for completely encapsulating at least one gas pocket between the outer layer and the inner member. The outer layer prevents the plurality of twisted pairs of conductive wires from entering the at least one gas pocket.