Water-cooling head
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Solution Overview
Problem
Conventional water-cooling heads experience uneven heat dissipation efficacy along their length, with higher heat accumulation and lower dissipation efficiency at the rear segment, leading to localized high temperatures and reduced effectiveness in removing heat from electronic components.
Innovation Solution
A water-cooling head with an inclined flow-guiding structure that splits the cooling liquid uniformly across its length, ensuring consistent temperature distribution by guiding the liquid through multiple openings and a fin group, preventing localized hotspots and enhancing heat exchange across all segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the water-cooling head is made longer to contact multiple heat sources simultaneously, then the heat dissipation coverage is improved, but the temperature uniformity deteriorates due to heat accumulation in the rear segment
Solution Approach 1:
The water-cooling head is divided into multiple independent cooling channels (first cooling channel, second cooling channel, third cooling channel) that are segmented along the flow direction. Each channel independently contacts different heat sources, allowing the cooling liquid to distribute heat dissipation tasks across separate pathways, thereby maintaining temperature uniformity while expanding coverage area.
Solution Approach 2:
Different segments of the water-cooling head are designed with different structural characteristics. The first cooling channel has a first cross-sectional area, the second cooling channel has a second cross-sectional area, and the third cooling channel has a third cross-sectional area. This local differentiation allows each segment to be optimized for its specific heat dissipation requirements, improving overall temperature uniformity across the extended coverage area.
2Productivity
If the cooling liquid flows through a long channel, then the heat dissipation coverage is improved, but the heat dissipation efficacy deteriorates at the rear segment due to heat accumulation
Solution Approach 1:
The single long cooling channel is segmented into multiple parallel cooling channels (first, second, and third cooling channels) arranged along the flow direction. This segmentation creates multiple independent heat dissipation pathways, ensuring that each segment maintains effective heat dissipation efficacy while collectively covering a larger area, thus resolving the trade-off between coverage and efficacy.
Solution Approach 2:
The cooling liquid continuously flows through all three cooling channels in parallel, ensuring that heat dissipation action is maintained uniformly across all segments simultaneously. This continuous parallel action prevents heat accumulation in any single segment, maintaining reliable heat dissipation efficacy throughout the entire coverage area.
3Power
If the water-cooling head contacts multiple heat sources, then the heat removal capability is improved, but the temperature homogenization deteriorates due to uneven heat absorption along the flow path
Solution Approach 1:
The water-cooling head is segmented into three distinct cooling channels, each contacting different heat sources independently. This segmentation allows the cooling liquid to remove heat from multiple sources simultaneously through separate pathways, enhancing overall heat removal capability while maintaining temperature homogenization through balanced channel design.
Solution Approach 2:
Each cooling channel is designed with specific local characteristics (different cross-sectional areas and positions) to match the heat dissipation requirements of the contacted heat sources. This local optimization ensures uniform temperature distribution across all heat sources while maintaining high overall heat removal capability.
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 inclined flow-guiding structure ensures uniform temperature distribution and enhanced heat dissipation efficacy across the water-cooling head, preventing excessive heat buildup and improving overall cooling performance by ensuring the cooling liquid with lower temperature is uniformly guided to all segments, thereby homogenizing the temperature and improving heat removal from multiple electronic components.
Implementation Method 1
When the liquid with the lower temperature flows through the electronic component with the higher temperature, the liquid absorbs the heat from the electronic component to decrease the temperature of the electronic component
Implementation Method 2
Through heat exchange, the heat is released from the pipes to the surroundings or another heat dissipating mechanism
Implementation Method 3
The bottom plate assembly includes a fin group. After the liquid is transferred to the fin group through the second opening or the plural first openings, the liquid is exited from the outlet
Data Source
AI summary
A water-cooling head includes a casing, an inclined flow-guiding structure and a bottom plate assembly. The casing includes an inlet and an outlet. A liquid is fed into the inlet. The inclined flow-guiding structure is disposed within the casing, and includes plural first openings. A bottom end of the inclined flow-guiding structure is located under the inlet. A top end of the inclined flow-guiding structure is arranged beside the outlet. The top end is located at a level higher than the bottom end. A second opening is formed in the bottom end. The bottom plate assembly is assembled with the casing, and located under the inclined flow-guiding structure. The bottom plate assembly includes a fin group. After the liquid is transferred to the fin group through the second opening or the plural first openings, the liquid is exited from the outlet.