Hub-Link Liquid Cooling System for Data Centers
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Solution Overview
Problem
Traditional thermal management solutions for data centers, such as air cooling and liquid cooling, are inefficient and complex, leading to insufficient cooling, high energy consumption, and maintenance challenges, especially in hyper-scale data centers.
Innovation Solution
A hub-link liquid cooling system that uses a Self-Organized Thermodynamic System (SOTS) with capillary micro-channels and cooling hubs to efficiently transfer heat from components to a two-phase working fluid, which then dissipates heat through a closed loop, minimizing internal space occupancy and providing redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air cooling is used for thermal management, then the system structure is simple, but the cooling efficiency is insufficient and energy consumption is high
Solution Approach 1:
The patent transitions from air cooling to liquid cooling by introducing a closed-loop liquid cooling system with cooling fluid circulation. The liquid cooling medium flows through cooling channels to efficiently absorb and transport heat from electronic components, significantly improving cooling efficiency while maintaining reasonable system complexity through modular design.
Solution Approach 2:
The patent utilizes phase change materials or two-phase cooling fluid that undergoes phase transitions (liquid-vapor-liquid) within the cooling system. This phase change process absorbs large amounts of latent heat during evaporation and releases heat during condensation, dramatically enhancing the cooling capacity and heat dissipation efficiency.
2Productivity
If traditional liquid cooling systems are implemented, then cooling efficiency improves, but safety and reliability concerns arise due to potential leaks
Solution Approach 1:
The patent extracts the cooling fluid containment into a separate, enclosed circulation system with dedicated cooling channels and heat exchangers. The cooling medium is confined within sealed loops, isolating it from electronic components and preventing direct contact that could cause short circuits or damage, thereby improving safety and reliability.
Solution Approach 2:
The patent introduces a dielectric cooling fluid as an intermediary substance that serves as the heat transfer medium. This specialized cooling fluid has both high heat transfer capability and electrical insulation properties, allowing it to efficiently cool components while preventing electrical conductivity issues and short circuits, thus enhancing system reliability.
3Use of energy by stationary object
If liquid cooling systems are used, then energy consumption decreases, but maintenance complexity increases
Solution Approach 1:
The patent divides the liquid cooling system into modular segments including independent cooling units, separable heat exchangers, and discrete circulation loops. This modular architecture allows individual components to be easily accessed, replaced, or maintained without affecting the entire system, significantly reducing maintenance complexity while preserving the energy efficiency benefits of liquid cooling.
4Productivity
If more cooling components are added to improve cooling capacity, then heat dissipation improves, but internal space occupancy increases
Solution Approach 1:
The patent implements a nested cooling architecture where cooling channels are integrated within or alongside existing electronic component structures. The cooling fluid passages are embedded in component housings or mounted directly on heat-generating elements, allowing the cooling system to occupy the same spatial envelope as the electronics rather than adding separate external cooling infrastructure, thus maintaining high heat dissipation capacity while minimizing space usage.
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 hub-link cooling system achieves efficient heat transfer with reduced energy consumption and minimal space usage, offering redundancy and ease of maintenance by circulating a two-phase fluid through a network of capillary channels, effectively addressing the inefficiencies of traditional cooling methods.
Implementation Method 1
transfer heat from heat-generating components to a two-phase working fluid
Implementation Method 2
Self-Organized Thermodynamic System (SOTS) with capillary micro-channels
Implementation Method 3
two-phase working fluid, which then dissipates heat through a closed loop
Implementation Method 4
dissipates heat through a closed loop
Data Source
AI summary
A cooling system for computer systems includes one or more cooling hubs and one or more heat spreading devices. The heat spreading devices have nodes and paths defining inner pathways that enclose a two-phase working fluid. The nodes and paths network acts as links for the two-phase working fluid to absorb and transfer thermal energy from the heat-generating components of the electronic device to the cooling hub. The hub-link structure decouples the direct geometrical relationship between heating components and cooling sources to enable a higher degree of design freedom, space management, and cooling redundancy.