Multi-Zone Cabinet Cooling Using Vortex Tubes and Demand Control

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Solution Overview

Problem

Current temperature control systems for electronic device cabinets are inefficient as they either require significant capital investment, are not universally available, or fail to provide tailored cooling to components with varying heat production levels, leading to suboptimal resource utilization.

Innovation Solution

The implementation of a multi-zone electronic device cabinet with separate temperature control systems using vortex tubes, each controlled by a compressor and sensors to deliver targeted cooling airflow to specific zones based on temperature demands, ensuring efficient cooling distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a single cooling air stream is used for the entire cabinet, then the cooling system is simple to implement, but high heat-producing components do not receive adequate cooling while low heat-producing components receive excessive cooling

Engineering Contradiction:
Improvetemperature regulation effectivenessVSAvoidcooling resource efficiency
Core Design Contradiction:
TemperatureVSProductivity

Solution Approach 1:

The cabinet interior is divided into multiple zones with different cooling requirements. Separate cooling air streams are provided for each zone, allowing high heat-producing components to receive adequate cooling while low heat-producing components receive appropriate cooling levels, eliminating waste and ensuring effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the cabinet are provided with different cooling intensities based on local heat generation characteristics. High heat-producing components receive high-volume cooling air streams while low heat-producing components receive lower-volume streams, optimizing cooling resource distribution.

Inventive Principle:
Principle #3Local quality

2Temperature

If water cooling systems are used, then cooling effectiveness is improved, but capital investment and infrastructure requirements increase significantly

Engineering Contradiction:
Improvecooling effectivenessVSAvoidsystem complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The system uses compressed air as the cooling medium instead of water cooling systems. Vortex tubes convert compressed air into intense cold air streams that can effectively cool electronic components, eliminating the need for complex water cooling infrastructure while maintaining cooling effectiveness.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The vortex tubes generate their own cooling effect from compressed air without requiring external chilled water sources. The system is self-contained and does not depend on external cooling infrastructure, reducing both complexity and infrastructure requirements.

Inventive Principle:
Principle #25Self-service

3Temperature

If cooling airflow volume is increased to satisfy high heat-producing components, then adequate cooling is provided to all components, but cooling resources are wasted on low heat-producing components

Engineering Contradiction:
Improvetemperature control adequacyVSAvoidcooling resource waste
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The cooling system is segmented into multiple independent air streams, each directed to specific zones based on heat production requirements. This allows high heat-producing components to receive high-volume cooling while low heat-producing components receive lower-volume streams, preventing energy waste.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each zone receives cooling airflow tailored to its specific thermal requirements. The system provides locally optimized cooling volumes rather than uniform high-volume cooling throughout, reducing overall energy consumption while maintaining adequate temperature control.

Inventive Principle:
Principle #3Local quality

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 allows for precise temperature regulation in each zone, optimizing the use of cooling resources and addressing the inefficiencies of existing systems by providing tailored cooling to high and low heat-producing components within the cabinet.

Implementation Method 1

Each of the first plurality of vortex tubes includes a compressed air inlet, a cooling air outlet and a heated air outlet. Cooling air is selectively guided from the cooling air outlet of each of the first plurality of vortex tubes into the first electronic device storage zone.

Methodology Applied
Scientific EffectVortex tube effect: Ranque-Hilsch Effect

Data Source

PatentUS8186174B2Temperature control system for an electronic device cabinet
Publication Date: 2012.05.29 LENOVO INT LTD
  • US8186174B2 patent drawing
  • US8186174B2 patent drawing
  • US8186174B2 patent drawing

AI summary

An electronic device cabinet includes a first temperature control system positioned to direct a conditioned airflow into a first electronic device storage zone of the cabinet and a second temperature control system positioned to direct a conditioned airflow into a second electronic device storage zone of the cabinet. The first temperature control system includes a first plurality of vortex tubes having a compressed air inlet and a first cooling air outlet that guides cooling air into the first device storage zone. The second temperature control system includes a second plurality of vortex tubes having a compressed air inlet and a second cooling air outlet that guides cooling air into the second device storage zone. A controller selectively delivers compressed air to respective ones of the first and second temperature control systems upon sensing a demand for cooling in corresponding ones of the first and second electronic device storage zones.