Optical Connection Box with Detachable Plate for Sealing

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Solution Overview

Problem

Existing optical connection boxes for FTTH networks are inconvenient for operators to use, require manual skill, and are not suitable for façade installations due to poor sealing against seepage and dust infiltration, increasing complexity and cost.

Innovation Solution

A connection box with a detachable connection plate and a simple outer casing design that allows easy passage of optical fibers through a fiber passage indentation, reducing the need for complex assembly and additional sealing components, making it operator-friendly and suitable for façade installations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If traditional optical connection boxes are used with complex assembly structures, then sealing against seepage and dust infiltration is improved, but device complexity and cost increase

Engineering Contradiction:

Improvesealing against seepage and dust infiltrationVSAvoidcomplexity of assembly structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The connection box is divided into a stationary outer casing and a detachable connection plate. The connection plate can be removed and replaced independently, simplifying the overall structure while maintaining sealing effectiveness through the integrated design of the outer casing.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The connection plate is extracted as a separate detachable component from the traditional integrated box structure. This allows the outer casing to focus on providing sealing and protection, while the connection plate handles the optical connections, reducing overall complexity.

Inventive Principle:

Principle #2Taking out (Extraction)

2Object-affected harmful factors

If traditional optical connection boxes with complex assembly structures are used, then sealing against seepage and dust infiltration is improved, but cost increases

Engineering Contradiction:

Improvesealing against seepage and dust infiltrationVSAvoidmanufacturing cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

By segmenting the connection box into modular components (outer casing and connection plate), manufacturing becomes simpler and more cost-effective. Each component can be manufactured independently using standard processes, reducing overall manufacturing complexity and cost.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The outer casing serves multiple functions: providing structural support, ensuring sealing against environmental factors, and housing the detachable connection plate. This multi-functionality reduces the need for additional components, lowering manufacturing cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If traditional optical connection boxes requiring manual skill for assembly are used, then connection reliability is improved, but ease of operation deteriorates

Engineering Contradiction:

Improveconnection reliabilityVSAvoidease of assembly for operators

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The connection plate is designed to be detachable and replaceable, transforming the static assembly into a dynamic, easily reconfigurable structure. Operators can quickly remove and replace connection plates without requiring complex manual assembly skills, while maintaining reliable connections.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The connection plate design allows operators to perform assembly and replacement operations independently without requiring specialized training or tools. The self-contained nature of the connection plate makes it user-friendly while ensuring reliable optical connections.

Inventive Principle:

Principle #25Self-service

4Object-affected harmful factors

If traditional optical connection boxes with additional sealing components are used, then sealing effectiveness is improved, but device complexity and cost increase

Engineering Contradiction:

Improvesealing effectivenessVSAvoidnumber of sealing components

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The sealing function is merged into the outer casing structure itself, eliminating the need for separate sealing components. The outer casing is designed to provide inherent sealing against seepage and dust infiltration, reducing the total number of parts while maintaining effectiveness.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11320617B2Connection box and method for connecting optical cables

Publication Date: 2022.05.03 PRYSMIAN SPA

AI summary

It is disclosed a connection box for housing a connection between a distribution cable and a drop cable of an optical access network. The connection box comprises an outer casing and a detachable connection plate, which may be completely housed therein. The outer casing comprises a fixing member for fixing the distribution cable. The connection plate comprises a first surface with a fixing member for fixing an end of the drop cable and a second, opposite surface with a connector holder for holding the optical connector between a distribution fiber extracted from the distribution cable and a drop fiber extracted from the drop cable. The perimeter edge of the connection plate exhibits an indentation forming a fiber passage allowing the drop fiber passing from the first surface to the second surface of the connection plate. It is also disclosed a method for connecting two optical cables using such connection box.