Bent Flow Channel Plate for Uniform Liquid Cooling Across Chips
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Solution Overview
Problem
Conventional liquid cooling systems for high-performance computing servers face challenges in achieving temperature uniformity across chips due to non-uniform flow velocity and temperature distribution, particularly under high computation workloads.
Innovation Solution
A medium flow channel with sequentially bent sub-sections and connecting sections, incorporating convex curved panels as flow guiding structures to ensure smooth medium flow and consistent temperature distribution, using heat dissipation fins to divide the channel into sub-sections and maintain gaps to minimize turbulence and bubble formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional liquid cooling schemes with heat dissipation fins are used, then heat dissipation capability is improved, but temperature uniformity across chips deteriorates
Solution Approach 1:
The patent introduces convex curved panels with arcuate or parabolic surfaces in the connecting sections of the flow channel. These curved surfaces guide the liquid medium to flow smoothly along the channel walls, preventing dead zones and ensuring uniform temperature distribution across all chips while maintaining effective heat dissipation through the fins.
2Power
If heat dissipation fins are added in flow channels, then heat transfer efficiency is improved, but flow velocity uniformity deteriorates
Solution Approach 1:
The convex curved panels create a streamlined flow path that maintains consistent flow velocity across the channel width. The curved geometry prevents flow separation and turbulence that would otherwise occur with sharp corners, ensuring uniform velocity distribution that complements the heat dissipation fins' function.
3Device complexity
If conventional flow channel designs are used, then device complexity is reduced, but temperature consistency across chips deteriorates
Solution Approach 1:
The convex curved panels are integrated into the connecting sections of the flow channel, adding minimal structural complexity. The curved surfaces can be formed through standard manufacturing processes and work in conjunction with existing heat dissipation fins, achieving improved temperature consistency without substantially increasing device complexity.
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
Enhances temperature consistency and flow velocity uniformity across the width of the flow channel, improving heat dissipation efficiency and extending the operational lifespan of liquid-cooled servers.
Implementation Method 1
the flow guiding structure including a convex curved panel, wherein the convex curved panel protrudes towards an outer wall of a flow channel of the connecting section where the convex curved panel is disposed, and a gap is maintained between the convex curved panel and the heat dissipation fins disposed in the sub-sections upstream and downstream of the convex curved panel
Implementation Method 2
a plurality of heat dissipation fins are juxtaposed in each of the sub-sections, each of the heat dissipation fins extending along an extension direction of the sub-section in which the heat dissipation fins are disposed and dividing the sub-section into a plurality of juxtaposed sub-flow channels
Implementation Method 3
each of the sub-sections is in correspondence with at least one row of the chips, and a plurality of heat dissipation fins are juxtaposed in each of the sub-sections
Data Source
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AI summary
Disclosed are a medium flow channel, a flow channel plate, a liquid-cooled server, and a data center. The medium flow channel includes: at least two sub-sections sequentially bent and connected, and connecting sections connecting adjacent sub-sections; wherein a plurality of heat dissipation fins are juxtaposed in each of the sub-sections, each of the heat dissipation fins extending along an extension direction of the sub-section in which the heat dissipation fins are disposed and dividing the sub-section into a plurality of juxtaposed sub-flow channels.