Ventilation Duct Cooling for Pluggable Optoelectronic Modules
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Solution Overview
Problem
Optical networks face cooling challenges due to increased heat generation at the optical interface, which is often too far from the heatsink, leading to ineffective cooling of pluggable optoelectronic modules.
Innovation Solution
A ventilation duct system is designed to channel airflow around the protruding part of the pluggable optoelectronic module, enhancing convection cooling by directing airflow through the heatsink and directly contacting the module, while also allowing light signals to pass through translucent materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pluggable modules increase in speed and complexity, then data transmission capability is improved, but heat generation increases and cooling effectiveness deteriorates
Solution Approach 1:
The patent introduces a new spatial dimension for cooling by extending the heatsink externally beyond the equipment housing front face. This allows the heatsink to occupy additional three-dimensional space, creating a larger surface area for heat dissipation without constraining the internal module design. The external extension resolves the contradiction by providing enhanced cooling capacity in a new spatial direction rather than increasing internal component density.
2Adaptability or versatility
If optical interface protrudes farther from equipment housing, then connectivity capability is improved, but distance from heatsink increases and cooling effectiveness deteriorates
Solution Approach 1:
The patent introduces an external heatsink extension as an intermediary structure between the protruding optical interface and the equipment housing. This intermediary extends the thermal management capability to the protruding portion, ensuring that even though the optical interface is farther from the internal heatsink, the external heatsink provides sufficient cooling surface area directly at the heat-generating location.
3Device complexity
If internal heatsink is positioned inside housing, then structural compactness is improved, but distance to protruding optical interface increases and cooling effectiveness deteriorates
Solution Approach 1:
The patent segments the heatsink into two functional parts: an internal portion integrated with the equipment housing for structural compactness, and an external extension portion that protrudes beyond the housing to provide cooling directly to the optical interface. This segmentation allows each part to fulfill its specific function optimally while working together as a unified thermal management system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively cools the pluggable modules by increasing airflow velocity and ensuring direct contact with the heatsink, thereby improving thermal management and maintaining module functionality.
Implementation Method 1
the opening is configured to define a ventilation opening to cause airflow from the front side to the rear side in contact with the pluggable module
Implementation Method 2
the first translucent material and the second translucent material are configured to transmit light signals from the faceplate to the front side of the housing
Data Source
AI summary
A system may include a ventilation duct, which partially or completely surrounds a pluggable optoelectronic module. The pluggable optoelectronic module may be plugged into electronic equipment, which includes a fan to cause airflow from a front of the electronic equipment (where the pluggable optoelectronic module is plugged) to a rear of the electronic equipment. The ventilation duct may cause airflow to contact the pluggable optoelectronic module, such as at a heatsink of the pluggable optoelectronic module, as it goes from the ambient atmosphere to ventilation openings at the front of the electronic equipment.