Fiber Optic Fanout Assembly Watertight Sealing
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Solution Overview
Problem
Existing fiber optic cable transition systems require protective materials like epoxy for spliced areas, which can be cumbersome and may not provide a reliable watertight seal, especially in wireless infrastructure where multiple optical fibers need to be efficiently distributed.
Innovation Solution
A fiber optic fanout assembly with a fanout housing, furcation tubes, and sealing structures that create watertight seals between the housing, tubes, and disks, eliminating the need for external protective materials by housing and sealing the spliced regions within the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If epoxy or other protective compounds are used to protect spliced areas, then the spliced regions are protected, but the system becomes more complex and requires additional materials that may not provide reliable watertight sealing
Solution Approach 1:
The patent combines the functions of mechanical protection and watertight sealing into a single integrated sealing structure. The sealing structure includes a sealant material that simultaneously protects the spliced optical fibers and creates a watertight barrier, eliminating the need for separate protective compounds like epoxy.
Solution Approach 2:
The patent extracts the sealing function from the protective compound category. Instead of using epoxy or other protective compounds that require additional application steps, the sealing structure incorporates pre-formed sealing elements (such as grommets or integrated sealants) that provide watertight protection as an inherent feature of the assembly.
2Adaptability or versatility
If multiple optical fibers are separated and routed individually through furcation tubes, then fiber distribution is achieved, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The patent segments the fiber distribution system into modular components: a common entry point for the trunk cable, individual furcation tubes for each optical fiber, and a structured sealing arrangement. This segmentation allows for systematic assembly while maintaining adaptability for different fiber counts and routing configurations.
Solution Approach 2:
The sealing structures are pre-positioned and pre-configured within the housing before the optical fibers are routed through them. The furcation tubes are pre-attached to the housing with sealing structures already in place, allowing for rapid fiber insertion without complex assembly steps during the fiber routing process.
3Productivity
If a single trunk cable is used to supply multiple sectors, then cable runs are reduced, but the transition to individual jumper cables requires complex enclosures and sealing mechanisms
Solution Approach 1:
The housing and sealing structure are designed as universal components that can accommodate different numbers of optical fibers and various furcation tube configurations. The sealing structures can be positioned at different locations within the housing, and the same basic design can serve multiple sectors or applications, reducing the need for custom enclosures.
Data Source
AI summary
A fiber optic fanout assembly includes: a fiber optic trunk cable comprising a plurality of optical fibers within a surrounding jacket; a fanout housing with an internal bore and rear and front end portions, the fanout housing receiving the optical fibers from the trunk cable within the internal bore though the rear end portion; a plurality of furcation tubes, each containing one or more of the optical fibers; a first sealing structure that creates a first seal between the fanout housing and the jacket of the fiber optic cable; a first disk having a plurality of holes, the first disk mounted to the front end portion of the fanout housing, wherein the furcation tubes and optical fibers residing therein are inserted into the holes in the first disk; and a plurality of second sealing structures, each of which provides a second seal between the furcation tubes and the first disk.