Heat Receiver With Variable Flow Path Cross Section
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Solution Overview
Problem
Current cooling units for CPUs face challenges in efficiently managing the increasing heat generated by improved CPU performance, as existing heat receivers do not adequately enhance cooling efficiency.
Innovation Solution
A heat receiver design featuring a first heat receiving body with a larger flow path cross-sectional area and a second heat receiving body with a smaller flow path cross-sectional area, where the coolant flows at a higher speed in the second path, enhancing cooling efficiency by increasing the flow rate and rapid heat absorption and dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a traditional heat receiver with uniform flow path cross-sectional area is used, then the structure is simple, but the cooling efficiency is insufficient for high heat generation
Solution Approach 1:
The patent applies local quality by varying the flow path cross-sectional area at different locations within the heat receiver. The first flow path has a larger cross-sectional area while the second flow path has a smaller cross-sectional area, creating localized differences in flow characteristics. This allows different regions of the heat receiver to optimize for their specific thermal loading conditions, improving overall cooling efficiency without requiring complete redesign of the entire structure.
Solution Approach 2:
The patent implements parameter changes by modifying the flow path cross-sectional area parameter along the coolant flow direction. By changing this geometric parameter from the first flow path to the second flow path, the patent alters the flow velocity and heat transfer characteristics. This parameter variation enables enhanced cooling performance in response to increasing heat generation from the CPU.
2Speed
If the flow path cross-sectional area is reduced to increase coolant flow speed, then cooling efficiency improves, but pressure loss increases
Solution Approach 1:
The patent applies segmentation by dividing the flow path into multiple sections with different cross-sectional areas. The first flow path with larger area handles the initial coolant flow, while the second flow path with smaller area increases velocity for enhanced heat transfer. This segmented approach allows the system to achieve high flow speeds in critical cooling zones without subjecting the entire flow path to high velocity conditions, thereby managing pressure loss more effectively.
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 achieves improved cooling performance by reducing thermal resistance by approximately 30% compared to traditional designs, effectively managing CPU heat and enhancing heat reception efficiency.
Implementation Method 1
a cooling unit that includes a heat receiver or the like that receives heat from the heat generating body and cools the heat generating body
Implementation Method 2
a heat receiver or the like that receives heat from the heat generating body
Data Source
AI summary
A heat receiver includes a first heat receiving body that includes a first flow path through which a coolant flows; and a second heat receiving body, provided on one side of the first heat receiving body, that includes a second flow path through which the coolant discharged from the first flow path flows. A flow path cross-sectional area of the second flow path is less than a flow path cross-sectional area of the first flow path so that the flow speed of the coolant is higher in the second flow path than in the first flow path, which enhances the cooling efficiency.