Step-Shaped Heat-Rejecting Media for Multi-Fan Cooling Layouts
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Solution Overview
Problem
Existing cooling systems for information handling systems face challenges in efficiently managing heat dissipation from high-power components, leading to overheating and potential component failure.
Innovation Solution
The implementation of heat-rejecting media configured with varying depths downstream of air mover exhausts, where the depth of the media regions parallel to airflow direction corresponds to the heat transfer requirements, allowing for optimized heat transfer and airflow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If heat-rejecting media with uniform depth is used downstream of multiple air movers, then manufacturing is simplified, but cooling efficiency is reduced due to insufficient optimization of heat transfer in different airflow regions
Solution Approach 1:
The heat-rejecting media is designed with non-uniform depth characteristics, where different regions have different depths optimized for their specific cooling requirements. Regions with higher heat transfer demands have greater depth, while regions with lower demands have lesser depth, allowing each local area to operate at optimal efficiency rather than using a uniform depth throughout.
Solution Approach 2:
The patent introduces depth variation as an additional dimensional parameter in the heat-rejecting media design. Instead of maintaining constant depth across all regions, the media extends to different depths in different areas, creating a three-dimensional optimized structure that enhances heat transfer capacity where needed while maintaining manufacturing feasibility.
2Productivity
If larger air movers are used to improve cooling performance, then heat dissipation capability increases, but the system's physical footprint increases
Solution Approach 1:
The heat-rejecting media is configured with region-specific depth characteristics that optimize heat transfer efficiency in different airflow zones. By placing deeper media sections in regions where air movers generate stronger airflow and heat transfer demand, the system achieves enhanced cooling performance without requiring proportionally larger air mover components, thus avoiding increased footprint.
Solution Approach 2:
The patent optimizes the depth parameter of the heat-rejecting media to match the airflow characteristics generated by each air mover. This parameter optimization allows the system to achieve maximum cooling efficiency with compact air mover sizes, as the heat-rejecting media is precisely tuned to extract heat from the airflow in each region without requiring oversized 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 configuration enhances cooling efficiency by optimizing heat transfer capacity while allowing for larger air movers, thereby improving cooling performance without increasing the system's physical footprint.
Implementation Method 1
heat-rejecting media may include surfaces located within the airflow of air movers, so that heat may further be transferred from heat-rejecting media to the cooling airflow
Implementation Method 2
air movers (e.g., cooling fans and blowers) have often been used in information handling systems to cool information handling systems and their components
Implementation Method 3
heat-rejecting media such as heat pipes, heat spreaders, and heat sinks are often thermally coupled to heat-generating devices of information handling systems
Data Source
AI summary
A method may include thermally coupling heat-rejecting media to an information handling resource and arranging the heat-rejecting media to have a portion of the heat-rejecting media downstream of airflow of exhausts of a first air mover and a second air mover, wherein the portion comprises: a first region downstream of an exhaust of the first air mover and having a first depth in a direction substantially parallel to a direction of airflow from the exhaust of the first air mover and a second region downstream of an exhaust of the second air mover and having a second depth in the direction substantially parallel to the direction of airflow from the exhaust of the first air mover, wherein the second depth is substantially smaller than the first depth.