Integrated Fiber Distribution Assembly for Rotary Cable Take-Up

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Solution Overview

Problem

Existing optical cable fiber distribution apparatuses suffer from low cable take-up and pay-off efficiency, complex assembly processes, and inefficient construction due to separate components that need on-site assembly.

Innovation Solution

An integrated optical cable fiber distribution apparatus with a cable take-up and pay-off structure that includes a base with a storage cavity and a rotary tray, where the rotary tray is fixed to a fiber access terminal, allowing synchronous rotation and detachment for efficient cable management, and a connection structure using connectors for easy assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the fiber access terminal, fiber spool, and optical cable are assembled as independent components on site, then the apparatus can be flexibly installed, but the assembly process becomes complex and time-consuming

Engineering Contradiction:
Improveflexible installationVSAvoidassembly process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the fiber access terminal, fiber spool, and optical cable into an integrated unit where the fiber spool is mounted directly on the fiber access terminal. This merging eliminates the need for separate on-site assembly of these components while maintaining installation flexibility, directly resolving the contradiction between adaptability and assembly complexity.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If the fiber access terminal, fiber spool, and optical cable are assembled as independent components on site, then the apparatus can be flexibly installed, but the construction time increases and efficiency decreases

Engineering Contradiction:
Improveinstallation flexibilityVSAvoidassembly efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The fiber spool is pre-mounted on the fiber access terminal during manufacturing, creating a pre-assembled unit. This preliminary action eliminates the need for on-site assembly of these components, significantly reducing construction time and improving productivity while preserving installation flexibility.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If manual coiling of redundant optical cable is required, then cable management can be achieved, but cable take-up and pay-off efficiency is low

Engineering Contradiction:
Improvecable managementVSAvoidcable take-up and pay-off efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The fiber spool is designed to automatically coil and pay out the optical cable as it rotates on its mounting axis. This self-service mechanism eliminates manual coiling operations, simultaneously improving cable management quality and dramatically increasing cable take-up and pay-off efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The fiber spool is designed to rotate freely on its mounting axis, enabling dynamic cable coiling and pay-out operations. This dynamic design allows the spool to automatically adapt to cable length requirements, improving both cable management and operational efficiency compared to static manual coiling methods.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If the optical cable is exposed outside the storage cavity, then cable access is easier, but the cable is vulnerable and appearance is poor

Engineering Contradiction:
Improvecable accessVSAvoidcable vulnerability
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The optical cable is nested within the storage cavity of the fiber access terminal, with the cable port providing controlled access. This nesting arrangement protects the cable from environmental damage and improves appearance while maintaining operational accessibility through the designated cable port.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP4102274B1Optical cable fiber distribution device
Publication Date: 2025.11.05 HUAWEI TECH CO LTD
  • EP4102274B1 patent drawingFigure 1~2
  • EP4102274B1 patent drawingFigure 3~4
  • EP4102274B1 patent drawingFigure 5~7

AI summary

Embodiments of this application provide an optical cable fiber distribution apparatus. The optical cable fiber distribution apparatus relates to the field of optical communications device technologies. The optical cable fiber distribution apparatus includes a fiber access terminal, a cable take-up and pay-off structure, and a connection structure. The cable take-up and pay-off structure is configured to take up and pay-off an optical cable connected to the fiber access terminal. The cable take-up and pay-off structure includes a base with a storage cavity, where the storage cavity integrates with a surface of the base to form a storage cavity opening, and the base is disposed with a cable port connected to the storage cavity; and a rotary tray configured to coil the optical cable, where the rotary tray is installed in the storage cavity, the fiber access terminal is disposed on a side of the storage cavity opening, the rotary tray is relatively fixed to the fiber access terminal, and the rotary tray and the fiber access terminal can rotate synchronously relative to the base. The connection structure includes: a first connector, disposed on the fiber access terminal; and a second connector, disposed on the base and detachably connected to the first connector. A main objective of the optical cable fiber distribution apparatus provided in the embodiments of this application is resolving technical problems of low cable take-up and pay-off efficiency, poor cable take-up effect, and low assembly efficiency of an optical cable fiber distribution apparatus in the prior art.