Vortex Tube Cooling for Two-Dimensional Power Converter Arrays
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Solution Overview
Problem
Existing cooling systems for power converters are limited to one-dimensional arrangements due to the use of fans, which restricts efficient space utilization and increases maintenance costs, while also generating noise and requiring frequent fan replacements.
Innovation Solution
A cooling system employing vortex tubes that use temperature sensors and controllers to manage the supply of low-temperature air, allowing power converters to be arranged in two dimensions without fans, thereby reducing installation space, maintenance costs, and noise, and enabling dust-proof and explosion-proof designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If fans are used for cooling power converters, then cooling effectiveness is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent removes fans from the power converter assembly entirely, extracting the rotating mechanical component that causes complexity and maintenance issues. Instead, fixed vortex tubes are installed within the housing to generate cooling airflow without any moving parts, thus improving reliability while maintaining cooling effectiveness.
Solution Approach 2:
The patent replaces the mechanical fan system with a vortex tube-based cooling system. The vortex tubes utilize the Joule-Thomson effect and vortex flow dynamics to separate compressed air into hot and cold streams, providing active cooling without mechanical rotation or electrical motors, thereby eliminating maintenance requirements.
2Temperature
If fans are installed in power converters, then cooling capability is improved, but installation space requirements increase
Solution Approach 1:
The patent enables two-dimensional arrangement of power converters by eliminating the vertical space requirement for fan installation and airflow path. The vortex tube system generates cooling within the horizontal plane of the device housing, allowing converters to be stacked or arranged in compact two-dimensional configurations without compromising cooling performance.
3Temperature
If fans are used for cooling, then heat dissipation is improved, but noise generation increases
Solution Approach 1:
The patent eliminates noise-generating mechanical components by replacing fans with vortex tubes. The vortex tube system operates silently by utilizing compressed air flow and vortex dynamics to create cooling, removing the primary source of acoustic noise associated with rotating fan blades and motor operation.
4Temperature
If fans are installed in power converters, then cooling performance is improved, but reliability decreases due to frequent replacements
Solution Approach 1:
The patent removes all rotating mechanical components and electrical motors from the cooling system, extracting the sources of failure and maintenance requirements. The fanless vortex tube design eliminates bearings, blades, and motor windings that are prone to degradation, thereby dramatically improving system reliability and operational lifespan.
Solution Approach 2:
The vortex tube cooling system is self-regulating and requires no external control or maintenance. The compressed air flow automatically generates the vortex effect and separates into hot and cold streams based on flow dynamics, providing passive cooling that adapts to thermal loads without mechanical adjustment or electrical control systems.
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
Enables efficient cooling of power converters in two-dimensional arrays, reducing installation space, maintenance costs, and noise, while providing dust-proof and explosion-proof capabilities, and minimizing the need for cooling fins and fans.
Implementation Method 1
a plurality of vortex tubes 150 supplied with the compressed air; wherein the vortex tubes 150 generate low-temperature air
Implementation Method 2
temperature sensors 120, 220 installed in each of the power converters 110, 210 to measure temperatures
Data Source
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AI summary
Disclosed herein is a cooling system for two-dimensional array power converters. The cooling system includes: a plurality of power converters 110 arranged in two-dimension; a compressor 130 configured to generate compressed air; vortex tubes 150 each installed in the respective power converters, the vortex tubes configured to generate low-temperature air based on compressed air from the compressor; valves 140 installed between the compressor and the vortex tubes; temperature sensors 120 each installed in the respective power converters to measure temperature inside the power converters; and a controller 160 configured to determine whether to supply the low-temperature air into the power converters by using the vortex tubes, based on the temperature measured by the temperature sensors, and to control the valves depending on a result of the determination.