Sealed Optoelectronic Isolation Device for Seawater Protection

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Solution Overview

Problem

The reliability of existing sealed optoelectronic isolation connection devices is low due to seawater entering the sealed cabin through broken copper conduits, damaging electronic devices inside.

Innovation Solution

A sealed optoelectronic isolation connection device comprising an insulation cylinder, conduit sealing device, and optical fiber sealing device, where each optical fiber is sealed through optical fiber holes and the conduit is sealed through a conduit hole, preventing seawater from entering the cabin even if the conduit breaks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If only the copper conduit is sealed while optical fibers pass through the same sealing structure, then the device structure is simple, but seawater can enter the sealed cabin through broken conduits damaging electronic devices

Engineering Contradiction:
Improvesealing structureVSAvoidsealing reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent divides the sealing structure into two independent parts: a conduit sealing device that seals the copper conduit and an optical fiber sealing device that seals the optical fibers. This segmentation allows each sealing device to independently protect its respective component, preventing seawater from entering through either the conduit or optical fibers, thus resolving the contradiction between structural simplicity and sealing reliability.

Inventive Principle:
Principle #1Segmentation

2Reliability

If separate sealing devices are used for conduit and optical fibers, then sealing reliability is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvesealing reliabilityVSAvoidsealing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the conduit sealing device and optical fiber sealing device into a single integrated sealed optoelectronic isolation connection device. Both sealing devices are mounted on the same insulating support plate and sealed to the sealed cabin together, forming a unified structure. This merging approach maintains high sealing reliability while avoiding excessive structural complexity, as the two sealing functions share common mounting and sealing infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2390698B8Sealed optoelectronic isolation connection device and sealed cabin
Publication Date: 2013.10.09 HUAWEI MARINE NETWORKS CO LTD

AI summary

The present invention provides a sealed optoelectronic isolation connection device and a sealed cabin. The sealed optoelectronic isolation connection device comprises an insulation cylinder, an optical fiber sealing device, and a conduit sealing device; the insulation cylinder is configured to insulate the conduit sealing device and the optical fiber sealing device; the conduit sealing device is provided with a conduit hole, which is configured to accommodate a conduit of an optical cable and sealing the conduit; the optical fiber sealing device is provided with multiple optical fiber holes, which are configured to accommodate optical fibers of the optical cable and sealing the optical fibers.; and the optical fiber sealing device and the conduit sealing device are inserted in sequence into the insulation cylinder and seal the insulation cylinder. By providing the optical fiber sealing device for sealing each optical fiber of the optical cable, and the conduit sealing device for sealing the conduit of the optical cable, the optical fibers and the conduit of the optical cable can be separately sealed through the sealed optoelectronic isolation connection device, which enhances the reliability of the sealed optoelectronic isolation connection device.