Cooling Insert Geometry for Low-Pressure Heat Sink Airflow
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Solution Overview
Problem
Existing Information Handling Systems (IHS) face challenges in efficiently dissipating heat due to increasing component density, with traditional fan cooling often inadequate, and liquid cooling methods requiring complex integration.
Innovation Solution
The implementation of cooling inserts and adapted heat sinks with specific geometries and fluid flow mechanisms, including twists, cutouts, and varying post configurations, to enhance air flow and thermal performance while minimizing pressure penalties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional fan cooling is used, then the cooling method is simple, but heat dissipation efficiency is insufficient due to increasing component density
Solution Approach 1:
The cooling insert is divided into multiple discrete elements including twists, posts, and cutouts that can be independently designed and optimized. Each element serves a specific function in manipulating fluid flow patterns to enhance heat transfer efficiency without requiring complete redesign of the cooling system.
Solution Approach 2:
The cooling insert acts as an intermediary component placed within the fluid flow path between the heat source and the cooling medium. It modifies the flow characteristics of the cooling fluid to improve thermal performance without directly contacting the heat-generating components.
2Reliability
If liquid cooling methods are implemented, then heat dissipation performance improves, but integration complexity increases
Solution Approach 1:
The cooling insert is designed to be compatible with multiple cooling approaches including air cooling and liquid cooling systems. The same insert geometry can be used across different applications and cooling methodologies, reducing the need for application-specific custom designs and simplifying integration.
Solution Approach 2:
The cooling insert automatically adapts to different flow conditions and thermal loads without requiring external control mechanisms. The geometric features self-regulate the fluid flow patterns based on the incoming flow conditions, eliminating the need for complex control systems.
3Temperature
If cooling inserts with twists and cutouts are used, then heat transfer is enhanced and surface temperatures are reduced, but manufacturing complexity increases
Solution Approach 1:
Multiple cooling features including twists, posts, and cutouts are combined into a single integrated insert component. This consolidation reduces the total number of parts that need to be manufactured and assembled, while maintaining the complex flow manipulation capabilities needed for enhanced heat transfer.
Solution Approach 2:
The insert design allows for parameter optimization such as twist angle, post diameter, and cutout geometry to be adjusted based on specific application requirements. These parameter changes enable customization without fundamentally altering the manufacturing process or requiring new tooling.
4Reliability
If airflow is increased to improve cooling, then heat dissipation improves, but pressure penalties and energy consumption increase
Solution Approach 1:
The twists in the cooling insert create curved flow paths that induce rotational motion and enhance mixing between different flow layers. This curvature-based flow manipulation improves heat transfer coefficients without requiring proportional increases in flow rate, thereby reducing the energy penalty associated with high-speed cooling.
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
These designs reduce surface temperatures and required airflow by enhancing heat transfer, achieving up to 30°C temperature reduction and 4x airflow reduction compared to open channels, with the potential for hybrid air and liquid cooling solutions.
Implementation Method 1
a first twist comprises a cutout... The first twist may have a first directional rotation, and a second twist may have a second directional rotation opposite the first directional rotation. The first directional rotation may cause a first fluid flow having a third directional rotation substantially similar to the first directional rotation.
Implementation Method 2
a cooling insert disposed between the first and second flat surfaces... These designs reduce surface temperatures and required airflow by enhancing heat transfer
Implementation Method 3
The implementation of cooling inserts and adapted heat sinks with specific geometries and fluid flow mechanisms, including twists, cutouts, and varying post configurations, to enhance air flow and thermal performance
Data Source
AI summary
Cooling inserts and adapted heat sinks. In some embodiments, an Information Handling System (IHS) may include: a first flat surface in parallel with a second flat surface; and a cooling insert disposed between the first and second flat surfaces, the cooling insert comprising: supports coupled to a top portion; and twists coupled between two or more of the supports, where a first twist comprises a cutout.