Hybrid passive and active cooling assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Computer systems face challenging heat dissipation issues due to increasing numbers of heat-generating components, which can harm structural and data integrity if not adequately addressed, with current cooling designs often being over-designed for high-performance environments and sub-optimized for specific applications.
Innovation Solution
A cooling assembly comprising a heat sink base, thermoelectric cooling module, and heat sink module, where the thermoelectric module's cold side is in contact with the heat sink base and its hot side with a separate heat sink module, allowing for adaptive cooling by monitoring processor parameters to switch between passive and active cooling modes, and a method to control airflow and power the thermoelectric cooling device based on processor power consumption and temperature thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If forced air cooling using fans and blowers is used to cool heat-generating components, then heat dissipation capability is improved, but energy consumption and acoustic noise increase
Solution Approach 1:
The cooling system dynamically switches between passive heat sink mode and active thermoelectric cooling mode based on real-time temperature monitoring. When processor temperature exceeds the first threshold, the thermoelectric module is activated; when it drops below the second threshold, the module is deactivated. This dynamic adaptation optimizes energy consumption while maintaining effective heat dissipation.
Solution Approach 2:
The system changes the operational state of the thermoelectric cooling module based on temperature parameters. By monitoring processor temperature and power consumption, the system transitions between different cooling states (passive vs. active), adjusting the cooling intensity to match the actual thermal load and avoid unnecessary energy consumption.
2Temperature
If thermoelectric cooling module is activated to enhance cooling capacity, then heat dissipation performance is improved, but device complexity increases
Solution Approach 1:
The thermoelectric cooling module is integrated with the existing heat sink structure, combining passive heat dissipation (heat sink fins) and active cooling (thermoelectric module) into a unified cooling assembly. The cold side of the thermoelectric module contacts the processor while the hot side contacts the heat sink, merging two cooling approaches into one cohesive system.
Solution Approach 2:
The cooling assembly serves multiple functions: it provides passive heat sinking through the fins, active cooling through the thermoelectric module when temperatures are high, and automatic temperature regulation through threshold-based control. This multi-functionality allows a single system to handle varying thermal loads without requiring separate cooling solutions.
3Temperature
If cooling design is over-designed for high-performance environments, then heat dissipation capability is improved, but cost and device complexity increase for standard applications
Solution Approach 1:
The system adapts its cooling intensity dynamically based on actual processor thermal conditions. For standard applications with lower thermal loads, the system operates in passive cooling mode only, avoiding the complexity and cost of continuously running active cooling. For high-performance scenarios, the thermoelectric module activates to provide enhanced cooling capacity when needed.
Solution Approach 2:
The system adjusts its operational parameters (active vs. passive cooling mode) based on processor temperature and power consumption levels. This parameter-based control allows the same cooling assembly to serve both standard and high-performance applications effectively, avoiding over-design for typical use cases while maintaining capability for demanding workloads.
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 solution effectively manages heat dissipation by utilizing a thermoelectric cooling module to enhance cooling capacity when needed, balancing energy efficiency and performance, and preventing heat backflow, thus maintaining optimal processor temperatures without increasing fan speed.
Implementation Method 1
a thermoelectric cooling module having a cold side and hot side, wherein the cold side is in contact with the second area of the heat sink base
Data Source
AI summary
A cooling assembly for cooling a processor includes a heat sink base defining a first area and a second area, a plurality of heat sink fins extending from the first area, a thermoelectric cooling module having a cold side and hot side, wherein the cold side is in contact with the second area, and a heat sink module in contact with the hot side. In use, a method includes monitoring a processor parameter selected from processor power consumption and processor temperature, and causing airflow across the plurality of heat sink fins and the heat sink module. The method further includes powering on the thermoelectric cooling module in response to the processor parameter having a value greater than a first threshold value, and powering off the thermoelectric cooling module in response to the processor parameter having a value less than a second threshold value.