Optical Fiber Splice Closure Sealing Structure for Cable Separation
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Solution Overview
Problem
Existing optical fiber splice closures have poor sealing performance, which is inadequate for their complex use environments, despite their waterproof and dustproof capabilities.
Innovation Solution
An optical fiber splice closure design featuring a closure cap and base with a sealing component that includes a sealing piece, separator, and installation piece, where the sealing piece has gel material and specific holes to form an optical cable hole, and a separator to separate optical cables, enhancing the sealing effect by filling gaps and preventing contact-induced sealing failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sealing structures are used in optical fiber splice closures, then the device complexity is low, but the sealing performance is insufficient for complex use environments
Solution Approach 1:
The sealing piece is divided into multiple functional components: a sealing block made of gel material, a first pressing piece with pressing sheets, and a second pressing piece. This segmentation allows each component to perform its specific function - the gel block provides sealing, the pressing pieces apply force, and together they create a multi-layer sealing system that improves reliability without creating a monolithic complex structure
Solution Approach 2:
The sealing block is made of gel material that combines the properties of flexibility and sealability. The composite structure of gel material within the sealing piece provides both deformation capability to fill gaps and maintaining sealing pressure, achieving high sealing performance in complex environments
2Reliability
If optical cables are allowed to contact each other in the installation groove, then the device complexity is low, but the sealing performance deteriorates due to contact-induced gaps
Solution Approach 1:
The installation groove is divided into multiple independent installation holes, and cables are separated within these holes using pressing sheets and sealing sheets. This segmentation prevents cable-to-cable contact that would create gaps, ensuring each cable is individually sealed while maintaining a relatively simple overall structure
Solution Approach 2:
Different regions of the sealing piece have different functions: pressing sheets provide mechanical pressure, gel sealing blocks provide sealing material, and sealing sheets provide barrier protection. This local differentiation of properties ensures optimal sealing at each location without requiring complex global restructuring
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 design achieves a better sealing effect by deforming the gel sealing block to fill gaps and separating optical cables, thereby improving the sealing performance and preventing issues caused by cable contact, resulting in enhanced protection against water and dust.
Implementation Method 1
a material of the sealing block is gel
Implementation Method 2
deforming the gel sealing block to fill gaps
Data Source
AI summary
The disclosure provides an optical fiber splice closure including a closure cap and a base. The base includes an end cover and a sealing component, the end cover and the closure cap are connected to form a sealed cavity, an installation groove is formed in the end cover, a through hole communicating with the sealed cavity is formed in a bottom of the installation groove, the sealing component includes a sealing piece, a separator and an installation piece, the sealing piece includes a first pressing piece, a sealing block and a second pressing piece provided with first, second and third installation holes, respectively, which communicate with one another in sequence to form an optical cable hole, optical cables penetrate through the optical cable hole and the through hole and enter the sealed cavity, the separator is arranged in the optical cable hole to separate the optical cables from one another.