Optical Connector Crimping Sleeve Segmentation
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Solution Overview
Problem
Conventional optical connectors experience reduced cable tensile strength due to slip between the sheathing and tensile strength fiber during the crimping process, which compromises the mechanical integrity of the optical fiber cable connections.
Innovation Solution
The optical connector design features a crimping sleeve with distinct tensile strength material holding projections and sheathing holding projections, allowing the crimping ring to securely fasten the tensile strength material and sheathing separately, enhancing friction and tensile strength without slip, and incorporating cut-in grooves to facilitate crimping and accommodate the sheathing effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the crimping ring is crimped to hold both the sheathing and tensile strength material together, then the crimping process is simplified, but slip occurs between the sheathing and tensile strength material reducing cable tensile strength
Solution Approach 1:
The crimping sleeve is segmented into two distinct holding regions: a first holding region with a first holding projection that holds only the tensile strength material, and a second holding region with a second holding projection that holds only the sheathing. This segmentation prevents slip between the sheathing and tensile strength material while maintaining separate secure holding of each component.
2Ease of operation
If the sheathing surface is made smoother to improve ease of insertion and layout, then the ease of operation is improved, but the crimping ring slips more easily on the sheathing
Solution Approach 1:
The second holding projection in the second holding region is designed with a local quality that provides enhanced friction or grip on the sheathing surface. This localized feature ensures the crimping ring maintains secure holding on the smooth sheathing without compromising the overall ease of insertion and layout of the optical fiber cable.
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
This configuration significantly increases the tensile strength of the optical fiber cable by ensuring secure fastening of the tensile strength material and sheathing, resulting in a cable strength that is approximately 1.5 times that of conventional connectors.
Implementation Method 1
enhancing friction and tensile strength without slip
Implementation Method 2
the crimping ring is crimped on to the tubular portion not only to thereby hold the tensile strength material between the tensile strength material holding projection and the crimping ring
Data Source
AI summary
An optical connector includes: an optical fiber cable in which an optical fiber core wire and a tensile strength material are covered by a sheathing; a ferrule; a housing which holds the ferrule; a crimping sleeve which includes: a tubular portion; a tensile strength material holding projection which is formed on an outer circumference of the tubular portion; and a sheathing holding projection which is formed on the outer circumference so as to lie further rearwards than the tensile strength material holding projection; and a crimping ring which is crimped on to the tubular portion not only to thereby hold the tensile strength material between the tensile strength material holding projection and the crimping ring but also to thereby hold the tensile strength material and the sheathing between the sheathing holding projection and the crimping ring.