Liquid Cooling Enablement Module for Server Chassis Thermal Management

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Solution Overview

Problem

Information handling systems face challenges in efficiently cooling processor components, particularly when air cooling methods are insufficient or inefficient, leading to the need for enhanced thermal management solutions.

Innovation Solution

A self-contained liquid cooling enablement module is introduced, which can be added to a server chassis, featuring a cold liquid interconnect and hot liquid interconnect, allowing for the circulation of cooling liquid to and from processor cold plates, providing additional cooling capabilities without requiring a complete system redesign.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If air cooling methods are used for processor components, then the system structure remains simple and costs are lower, but cooling efficiency becomes insufficient for high-performance processors

Engineering Contradiction:
Improveprocessor cooling efficiencyVSAvoidcooling system complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The cooling system is segmented into modular components including cold plates that attach directly to processors, liquid distribution manifolds, and separate cooling channels. This segmentation allows the liquid cooling system to be implemented selectively on high-heat processors without cooling entire systems, resolving the contradiction between improved cooling efficiency and reduced system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Cold plates serve as intermediary components between the processor and the liquid cooling system. These cold plates transfer heat from the processor to the circulating liquid without requiring direct integration of complex cooling infrastructure into every processor, enabling efficient heat transfer while maintaining system modularity and managing complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If liquid cooling components are added to existing server chassis, then cooling efficiency improves, but system complexity and installation difficulty increase

Engineering Contradiction:
Improveprocessor cooling efficiencyVSAvoidupgrade installation ease
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The liquid cooling system is designed with dynamic, reconfigurable connections that allow cold plates and liquid lines to be easily attached and detached from different processors. This dynamic design enables selective upgrading of cooling components based on thermal requirements without requiring complete system disassembly or fixed infrastructure changes

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The liquid cooling enablement module is designed as a universal component that can be applied to multiple different processor types and configurations within the server chassis. The standardized cold plates and interconnects work across various processor form factors, allowing a single cooling solution to serve multiple functions and reduce installation complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If selective liquid cooling upgrades are implemented, then costs are reduced by cooling only necessary components, but system adaptability becomes more challenging

Engineering Contradiction:
Improvecost effectivenessVSAvoidcooling system adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The cooling system allows for parameter changes in thermal management by enabling selective application of liquid cooling to specific processors based on their thermal characteristics and workload requirements. High-performance processors can be equipped with cold plates while lower-power processors use air cooling, optimizing cost effectiveness while maintaining adaptability through configurable thermal parameters

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The cooling system is segmented into independently controllable zones with separate cold plates for different processors. This segmentation allows the system to adapt to varying thermal requirements of different components while using cost-effective liquid cooling only where necessary, rather than implementing a uniform cooling approach across all components

Inventive Principle:
Principle #1Segmentation

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 solution enables effective cooling of processors by upgrading from air-cooled to liquid-cooled systems, allowing for modular expansion of cooling components, thereby improving thermal management and reducing costs by enabling selective upgrades only where needed.

Implementation Method 1

The first cold liquid line may direct cool liquid from a first cold liquid interconnect of the compute device to the cold plate

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

The first hot liquid line may direct heated liquid from the cold plate to a first hot liquid interconnect of the compute device

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS10201115B2Server chassis with a liquid cooling enablement module in an input/output module bay
Publication Date: 2019.02.05 DELL PROD LP
  • US10201115B2 patent drawing
  • US10201115B2 patent drawing
  • US10201115B2 patent drawing

AI summary

A chassis includes a compute device and a liquid cooling enablement module. The compute device includes a processor, a cold plate, and first cold and hot liquid lines. The first cold liquid line directs cool liquid from a first cold liquid interconnect of the compute device to the cold plate. The first hot liquid line directs heated liquid from the cold plate to a first hot liquid interconnect of the compute device. The liquid cooling enablement module is a modular self-contained component, and includes a second cold liquid interconnect, and a second hot liquid interconnect. The second cold liquid interconnect directs the liquid from the liquid cooling enablement module to the first cold liquid line via the first cold liquid interconnect. The second hot liquid interconnect directs the liquid from the first hot liquid line to the liquid cooling enablement module via the first hot liquid interconnect.