Enclosure Cooling with Segmented Chambers and Forced Airflow
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Solution Overview
Problem
Conventional enclosures for electronic components in aerospace and other industries face challenges in cooling due to limited effectiveness in dissipating heat from high-power devices, as heat from electromagnetics is inefficiently conducted through iron cores, and components with different temperature limits operate in the same hot air environment, lacking effective dedicated heat sinks.
Innovation Solution
An enclosure design with a frame that prevents external air infiltration, featuring a divider to create separate chambers for different electronic components, and a blower with a cold-plate to cycle air through these chambers and an airflow pathway, enhancing thermal management through forced air convection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional natural convection or conductive cooling is used, then the enclosure structure is simple, but the cooling effectiveness is limited due to heat conduction through iron cores and shared hot air environment
Solution Approach 1:
The enclosure is divided into multiple sealed chambers using dividers, with each chamber housing specific electronic components. This segmentation allows independent temperature control and airflow management for each chamber, enabling effective cooling of high-power devices without requiring complex external cooling systems for the entire enclosure.
Solution Approach 2:
Different chambers are designed with different thermal characteristics and cooling requirements based on the specific heat dissipation needs of the electronic components housed within. High-power electromagnetics are placed in chambers with optimized airflow paths and thermal management features, while low-power components are housed in chambers with different thermal characteristics.
2Volume of moving object
If components with different temperature limits are placed in the same enclosure, then the enclosure space is utilized efficiently, but temperature-sensitive components suffer from the hot air environment created by high-power electromagnetics
Solution Approach 1:
The enclosure is divided into multiple sealed chambers using dividers, with each chamber housing specific electronic components. This segmentation allows independent temperature control and airflow management for each chamber, enabling effective cooling of high-power devices without requiring complex external cooling systems for the entire enclosure.
Solution Approach 2:
Temperature-sensitive electronic components are extracted from the common hot air environment and placed in dedicated chambers with independent airflow paths and thermal management. This separation removes them from the harmful thermal influence of high-power electromagnetics while maintaining efficient space utilization.
3Device complexity
If high-power electromagnetics are cooled by conducting heat through iron cores to box walls or cold plates, then the cooling system is simple, but the heat conduction efficiency is limited
Solution Approach 1:
The invention employs forced air convection cooling within sealed chambers, using airflow paths and fans to actively remove heat from high-power electromagnetics. This pneumatic cooling approach replaces the inefficient conductive cooling through iron cores with a more effective convective heat transfer mechanism, improving heat dissipation efficiency.
4Temperature
If the enclosure is opened for cooling, then heat dissipation is improved, but external air infiltration contaminates the internal environment
Solution Approach 1:
The enclosure is divided into multiple sealed chambers using dividers, with each chamber housing specific electronic components. This segmentation allows independent temperature control and airflow management for each chamber, enabling effective cooling of high-power devices without requiring complex external cooling systems for the entire enclosure.
Solution Approach 2:
The invention maintains sealed chambers with controlled internal atmospheres, preventing external air infiltration while enabling effective heat dissipation through forced convection within the closed chambers. This creates a protected internal environment that is both thermally manageable and contamination-free.
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 design improves thermal management by ensuring effective cooling of components with different temperature limits, reducing inefficiencies in heat dissipation and providing a dedicated cooling mechanism, thereby enhancing the overall cooling effectiveness of electronic components.
Implementation Method 1
a blower including a cold-plate configured to cool first electronic components disposed on the cold plate, second electronic components disposed in the second chamber and third electronic components disposed in the first chamber by cycling air through the first chamber, the second chamber and the airflow pathway
Implementation Method 2
a blower including a cold-plate configured to cool first electronic components disposed on the cold plate
Data Source
AI summary
An enclosure is provided and includes a frame defining an interior and a pathway, the frame being configured to prevent external air infiltration to the interior, a divider disposed to divide the interior into first and second chambers that are each fluidly communicative with the pathway and a blower including a cold-plate configured to cool first electronic components disposed on the cold plate, second electronic components disposed in the second chamber and third electronic components disposed in the first chamber by cycling air through the first chamber, the second chamber and the airflow pathway.