Movable Heatsink Actuation for Transceiver Thermal Coupling
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Solution Overview
Problem
Existing cooling solutions for pluggable modules like transceivers are inefficient due to displacement of thermal interface material during insertion and removal, and the connector cage acts as an air shield, hindering effective heat removal.
Innovation Solution
An apparatus comprising an actuator and a heat-rejecting medium that translates to become thermally coupled with the pluggable module upon insertion, ensuring consistent contact and minimizing thermal resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fixed heatsink is implemented on the cage, then heat removal capability is improved, but thermal interface material is displaced during transceiver insertion and removal
Solution Approach 1:
The heatsink is made movable rather than fixed, allowing it to dynamically adjust its position. The heatsink includes a movable portion that can move along the cage axis to make contact with the transceiver when inserted, ensuring consistent thermal interface material contact without displacement during insertion/removal cycles
Solution Approach 2:
The heatsink assembly automatically positions itself through the insertion force of the transceiver. When the transceiver is inserted, it naturally pushes the movable heatsink portion into contact, eliminating the need for external actuation mechanisms and ensuring reliable thermal contact without manual intervention
2Reliability
If the cage structure is maintained for transceiver retention, then transceiver holding is improved, but air shield effect prevents effective cooling
Solution Approach 1:
The cage structure is segmented to create openings or gaps that allow airflow to reach the transceiver. The cage is divided into sections that provide both mechanical retention and thermal access, breaking the continuous enclosure that causes the air shield effect while maintaining transceiver holding capability
Solution Approach 2:
Different portions of the cage structure have different properties: some areas provide mechanical retention while other areas are designed with openings or reduced material to allow thermal access. The cage transitions from a fully enclosed structure to one with localized openings strategically positioned to enable cooling airflow to the transceiver
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 solution enhances heat removal efficiency from transceivers, reducing thermal design complexity and power consumption of cooling systems by maintaining thermal interface material integrity and eliminating air shield effects.
Implementation Method 1
the heat-rejecting medium to become thermally coupled to the pluggable module when the pluggable module is inserted into the receptacle
Data Source
AI summary
An apparatus may include an actuator, a heat-rejecting medium, and a receptacle for receiving a pluggable module. The pluggable module may be operable to be inserted into the receptacle in a first direction. The actuator may be operable to be translated in the first direction by the insertion of the pluggable module into the receptacle. The heat-rejecting medium may be operable to be translated in a second, different direction by the actuator when the actuator is translated in the first direction. The translation of the heat-rejecting medium in the second direction may be operable to cause the heat-rejecting medium to become thermally coupled to the pluggable module when the pluggable module is inserted into the receptacle.