Movable Duct Ventilation Flue for Dense Electronic Component Cooling
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Solution Overview
Problem
The densification of electronic components in plug-in units makes it difficult to design units with efficient airflow, leading to reduced cooling efficiency due to poor airflow distribution within the mount housing.
Innovation Solution
The implementation of movable ducts that can transition between a housed state within the mount housing and an opened state outside, forming ventilation flues to improve airflow and cooling efficiency by allowing cooling air to be introduced and discharged effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If electronic components are densely mounted in plug-in units, then component integration is improved, but airflow distribution deteriorates leading to reduced cooling efficiency
Solution Approach 1:
The duct is designed to be movable between a retracted state (housed within the mount housing) and an extended state (protruding outward to form a ventilation flue). This dynamic configuration allows the system to adapt airflow pathways based on operational requirements, enabling effective cooling even when electronic components are densely mounted by providing adjustable ventilation channels that can optimize air flow distribution throughout the mount housing.
2Reliability
If a movable duct is extended outward to form a ventilation flue, then ventilation efficiency is improved, but device complexity increases
Solution Approach 1:
The movable duct is nested within the mount housing in its retracted state, occupying minimal space. When ventilation is required, the duct extends outward from the housing. This nesting approach allows the ventilation system to be compact when not in use while providing extended ventilation capability when needed, avoiding permanent external structures and reducing overall device complexity.
3Reliability
If cooling air is introduced from the front and discharged at the rear, then cooling coverage is improved, but airflow obstruction increases due to component density
Solution Approach 1:
The ventilation system is segmented into multiple pathways through the mount housing, with the movable duct creating additional segmented channels. This segmentation allows cooling air to flow through multiple separate paths rather than a single blocked path, distributing airflow more effectively throughout the densely packed electronic components and reducing the impact of localized airflow obstruction.
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 enhances ventilation efficiency, suppressing the reduction in cooling efficiency of electronic components, even with densely mounted components, by facilitating better airflow and reducing the complexity of inlet and outlet space requirements.
Implementation Method 1
The cooling fan operates to generate cooling air passing through the mount housing in the front-rear direction. This cooling air is introduced into the plug-in units from inlets on the front side of the plug-in units, for example. The cooling air introduced into the plug-in units is discharged from outlets on the rear side of the plug-in units after passing over the multiple electronic components.
Data Source
AI summary
An electronic device includes a rack, a mount housing in which an electronic component is housed, and mounted in the rack from a front face side or rear face side of the rack, and a movable duct configured to have a housed state where the movable duct is retracted from an opening formed in a sidewall part of the mount housing and is housed in the mount housing and an opened state where the movable duct is moved to outside of the mount housing through the opening so as to form a ventilation flue located outside the mount housing and communicating with the opening.