Optical Fiber Terminal Box Volume Reduction via Segmented Fastening Plate

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Solution Overview

Problem

Existing access terminal boxes have a large volume due to the wide size required for supporting a four-core SC adapter, leading to a significant space constraint and increased size, which is not efficiently utilized.

Innovation Solution

A fastening plate is introduced, allowing the adapter to be separately mounted on it, optimizing the three-dimensional space of the base and reducing the overall volume of the access terminal box by utilizing the available space more compactly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the adapter is directly mounted on the base, then the structure is simple, but the volume of the access terminal box becomes large

Engineering Contradiction:
Improvestructural complexityVSAvoidvolume of access terminal box
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

The base structure is segmented into two functional layers: the base plate provides cable leading-in and coiling functions, while the separately mounted fastening plate provides adapter mounting functions. This segmentation allows each component to be optimized independently and reduces the overall volume by eliminating the need for a large single integrated base structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastening plate is mounted on the upper surface of the base plate, utilizing the vertical dimension rather than expanding horizontally. This dimensional transition allows the adapter to be positioned above the base plane, effectively using three-dimensional space and reducing the horizontal footprint and overall volume of the access terminal box.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If the cable leading-in area is enlarged to support four-core SC adapter, then the adapter functionality is improved, but the width size increases significantly

Engineering Contradiction:
Improveadapter support capabilityVSAvoidwidth size of access terminal box
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The fastening plate is positioned in the vertical dimension above the base plate, allowing four adapters to be mounted without increasing the horizontal width of the device. This vertical arrangement enables full adapter functionality while maintaining a compact horizontal footprint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The fastening plate and base plate are combined into an integrated assembly where the fastening plate is mounted on the base plate. This merging allows the cable leading-in area on the base plate and the adapter mounting area on the fastening plate to work together efficiently within a compact overall structure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3115818B1Optical fiber terminal box
Publication Date: 2019.07.24 HUAWEI TECH CO LTD
  • EP3115818B1 patent drawingFigure 1~2
  • EP3115818B1 patent drawingFigure 2
  • EP3115818B1 patent drawingFigure 3

AI summary

Embodiments of the present invention provide an access terminal box (10) and pertain to the field of communications technologies. The access terminal box includes a protective cover (11), a base (12), an adapter (13), a fastening plate (14), and a base plate (15), where the base (12) is fastened on the base plate (15), the fastening plate (14) is fastened on the base (12), the protective cover (11) is fastened on the base (12) and covers the fastening plate (14), a fastening slot (141) is disposed on the fastening plate (14), and the adapter (13) is fastened inside the fastening slot (141). In the embodiments of the present invention, a fastening plate (14) is disposed, and an adapter (13) is separately mounted on the fastening plate (13), so that space of a base (12) is more compact, and a volume of an access terminal box (10) is reduced.