Fiber Optic Cable Jacket with Integrated Reinforcement
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Solution Overview
Problem
Prior art fiber optic cable assemblies face difficulties in connectorization due to the challenging nature of strength layers, particularly aramid yarn, which are hard to cut and require special tools, complicating the manufacturing process and automation.
Innovation Solution
A fiber optic cable with a jacket that integrates reinforcement members into a matrix material, allowing for direct engagement of the connector assembly, and featuring a texturized gripping surface to enhance retention and mechanical strength, eliminating the need for a separate strength layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a separate strength layer (aramid yarn) is used in fiber optic cable, then mechanical strength and protection against stresses are improved, but the connectorization process becomes difficult and requires special cutting tools
Solution Approach 1:
The patent combines the strength layer function directly into the jacket by integrating reinforcement members (such as aramid yarns, steel wires, or fiberglass strands) within the jacket material itself. This eliminates the separate strength layer, allowing the jacket to provide both protection and mechanical strength, thereby simplifying the connectorization process as no separate cutting of strength layer is required.
Solution Approach 2:
The jacket is formulated as a composite material containing reinforcement members distributed within the jacket matrix. This composite structure provides enhanced tensile strength and mechanical properties while maintaining the jacket's protective function, eliminating the need for a separate strength layer and simplifying manufacturing.
2Productivity
If reinforcement members are integrated into the jacket matrix, then the connectorization process is simplified and automation is facilitated, but the manufacturing complexity of the jacket increases
Solution Approach 1:
The reinforcement members are pre-integrated into the jacket during the jacket extrusion process. The jacket material is prepared with embedded reinforcement members before the actual cable assembly process, allowing subsequent connectorization to proceed without additional steps for handling separate strength layers, thus enabling automation.
Solution Approach 2:
The jacket serves multiple functions: protection, mechanical strength, and structural integration for connectors. By making the jacket multi-functional through integrated reinforcement members, the system reduces the number of separate components and processes required, simplifying overall manufacturing despite the enhanced jacket formulation.
3Strength
If the jacket includes integrated reinforcement members, then tensile strength is improved, but the weight of the cable increases
Solution Approach 1:
The reinforcement members are integrated directly into the jacket structure, allowing for optimized distribution and orientation of strengthening elements. This integrated approach provides necessary tensile strength while minimizing additional weight compared to separate strength layers, as the reinforcement is efficiently distributed only where needed within the jacket matrix.
Data Source
AI summary
A fiber optic cable assembly includes a fiber optic cable and a connector assembly. The fiber optic cable includes an optical fiber, having a core surrounded by a cladding, and a jacket, which surrounds the optical fiber. The jacket includes a plurality of reinforcement members integrated into a matrix material of the jacket. The connector assembly includes a rear housing having a connector end that is directly engaged with an end portion of the jacket. A fiber optic cable includes an optical fiber with a core surrounded by a cladding. The fiber optic cable also includes a jacket that surrounds the optical fiber. The jacket includes about 40% to about 70% by weight of a plurality of reinforcement members integrated into a matrix material of the jacket.