Chassis Bypass Channel for I/O Module Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In information handling systems, excessive heat generated by processor modules can lead to performance degradation and increased cooling costs, especially in data centers, as unheated air is drawn towards I/O modules and becomes heated before reaching them, resulting in inefficient cooling.
Innovation Solution
A chassis design featuring a bypass channel that directs unheated air from the front to the rear, where it is cooled before reaching the I/O module, utilizing a plenum to create negative pressure and ensure uniform airflow across the I/O module, preventing heated air from the processor module from reaching it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is placed in the rear of the chassis to draw air through the interior, then air circulation is achieved, but unheated air is drawn towards I/O modules and becomes heated before reaching them, resulting in inefficient cooling
Solution Approach 1:
The air flow path is segmented into separate channels: a first channel that allows unheated air to reach the I/O module, and a second channel that directs heated air from the processor module away from the I/O module. This segmentation enables independent control of air flow paths, allowing the I/O module to receive cool air while the processor module generates heat without transferring it to the I/O module.
Solution Approach 2:
Physical barriers are introduced as intermediary elements to control air flow. The barriers block the direct path of heated air from the processor module to the I/O module, while still allowing unheated air to reach the I/O module through the first channel. These intermediaries mediate between the heat source and the heat-sensitive component.
2Temperature
If physical barriers are used to direct air flow, then heated air is prevented from reaching the I/O module, but air flow uniformity across the I/O module may be compromised
Solution Approach 1:
The air flow management is segmented into multiple independent channels and barrier structures. The first channel provides a dedicated path for unheated air, while the second channel manages heated air flow. This segmentation allows each component to perform its specific function without interfering with others, maintaining temperature uniformity while managing complexity through modular design.
Solution Approach 2:
Different regions of the chassis are assigned different air flow characteristics. The first channel provides localized cool air flow to the I/O module, while the second channel handles heated air flow from the processor module. This local differentiation ensures that each component receives the appropriate air flow quality needed for its thermal management requirements.
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 effectively cools the I/O module with unheated air, ensuring efficient and uniform airflow, reducing the risk of overheating and associated cooling costs by preventing heated air from the processor module from reaching the I/O module.
Implementation Method 1
The presence of the plenum creates a negative pressure on the opposite side of the second module, causing air to cross the second module into the plenum
Implementation Method 2
A chassis may include a fan for directing air through the interior of the chassis
Data Source
AI summary
A chassis having a bypass channel for air flow is disclosed. The chassis include a bypass channel that is proximate one side of the chassis. The bypass channel may be formed by the side of the chassis and a module of the computing system, such as the processor module of the computing system. A second module exists in the rear of the chassis. A physical barrier may be used to direct air from the bypass channel to the second module, which may be an I/O module. A plenum is placed on the opposite side of I/O module from the air flow. The presence of the plenum creates a negative pressure on the opposite side of the second module, causing air to cross the second module into the plenum. A fan in the rear of the chassis causes air to leave the plenum and exit the chassis.