Optical Transceiver Heat Sink Module Assembly for High-Power Thermal Management
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Solution Overview
Problem
Current heat sink designs for optical transceivers are inadequate for high-power transceivers operating in severe environmental conditions with restricted airflow, as they fail to provide sufficient heat transfer capabilities to maintain the transceivers within their maximum temperature ratings.
Innovation Solution
The proposed solution involves a heat sink module assembly that eliminates the optical transceiver cage and uses a removable top heat sink cover attached to a fixed bottom heat sink, with thermal gaskets at contact points to enhance heat dissipation and reduce thermal resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional heat sink designs are used, then the structure is simple and easy to manufacture, but the heat transfer capability is insufficient for high-power transceivers in severe environmental conditions
Solution Approach 1:
The heat sink is divided into multiple segments including a module base, module cover, and optical transceiver cover, each with specific thermal management functions. This segmentation allows optimized heat transfer paths while maintaining manufacturing feasibility for each component
Solution Approach 2:
The heat sink components are nested within the optical transceiver module assembly, with the module base forming the foundation, the module cover enclosing the internal components, and the optical transceiver cover providing the outermost thermal management layer. This nested structure maximizes heat transfer efficiency within constrained space
2Reliability
If thermal gaskets are added at contact points, then thermal resistance is reduced and heat dissipation is enhanced, but manufacturing complexity and assembly steps increase
Solution Approach 1:
Thermal gaskets are pre-installed at critical contact points during component fabrication, ensuring optimal thermal contact is established before final assembly. This preliminary action guarantees thermal performance while simplifying the final assembly process
Solution Approach 2:
Thermal gaskets serve as intermediary materials between metal components, filling microscopic gaps and surface irregularities at contact points. This intermediary layer ensures consistent thermal contact and predictable thermal resistance values across production batches
3Ease of operation
If the optical transceiver cage is eliminated and a removable top heat sink cover is used, then installation and removal are simplified, but structural complexity increases
Solution Approach 1:
The optical transceiver cover is designed as a removable dynamic component rather than a fixed structure. This allows the cover to be easily installed and removed for maintenance and replacement while maintaining thermal management functionality during operation
Solution Approach 2:
The removable optical transceiver cover serves multiple functions: providing thermal management, protecting internal components, enabling easy access for maintenance, and allowing configuration changes. This multi-functionality reduces the need for separate components
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
This design effectively lowers thermal resistance, allowing optical transceivers to operate within their maximum temperature ratings even in extreme conditions, while also simplifying the installation and removal process.
Implementation Method 1
one or more thermal gaskets disposed at contact points between the optical transceiver cover, the module cover, the module base and one or more optical transceivers, wherein, when assembled, the main heat dissipation path is from the one or more optical transceivers to the optical transceiver cover to the module base through a back wall of the optical heat sink module assembly
Data Source
AI summary
An optical transceiver heat sink module assembly for use with optical transceivers comprising an optical transceiver cover, a module cover, a module base and one or more thermal gaskets is described.