Chassis Structure with Offset Ducting for Server Cooling
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Solution Overview
Problem
Conventional server racks face challenges with heat management and accessibility due to compact component arrangements, leading to reduced performance and increased costs from continuous air-cooling requirements.
Innovation Solution
A chassis structure is designed with electronically components positioned according to their operating temperatures, featuring longitudinally and laterally offset high-temperature components and ducting structures to optimize airflow and prevent fluid mixing, allowing for efficient cooling in both air-cooled and free-cooling environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If server racks are arranged in a compact manner to minimize room occupation, then space utilization is improved, but heat dissipation deteriorates and component accessibility worsens
Solution Approach 1:
The chassis is divided into multiple compartments (first compartment, second compartment, third compartment) that segment the internal space. This segmentation allows for organized placement of components with different thermal characteristics in specific zones, improving heat dissipation while maintaining compact form factor.
Solution Approach 2:
Different regions of the chassis are designed with different thermal management characteristics. The front portion accommodates components requiring active cooling (storage drives with fans), while the rear portion is designed for passive cooling (optical drives). This local differentiation of thermal management strategies optimizes heat dissipation in each zone.
2Area of stationary object
If server racks are arranged in a compact manner to minimize room occupation, then space utilization is improved, but maintenance accessibility deteriorates
Solution Approach 1:
The chassis is segmented into removable compartments that can be independently accessed. The tray assembly with storage drives can be removed as a unit, and individual optical drives can be accessed through the rear opening, enabling maintenance without disassembling the entire chassis.
Solution Approach 2:
Access to optical drives is provided through the rear dimension of the chassis rather than requiring front access. This multi-directional access approach allows maintenance personnel to reach components from different sides of the device.
3Temperature
If continuous air-cooling is used to reduce ambient temperature, then cooling performance is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous cooling, the system uses periodic cooling through removable fans that can be activated as needed. The tray assembly includes storage drives with integrated fans that can be operated periodically based on thermal conditions rather than running continuously.
Solution Approach 2:
The chassis design enables passive cooling through natural convection and radiation. Components are positioned to allow heat to dissipate naturally, and the removable fan assembly allows the system to self-regulate cooling based on actual thermal conditions without requiring continuous active cooling.
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 enhances cooling performance, reduces energy consumption, and improves maintenance accessibility by optimizing airflow and component placement within the server rack.
Implementation Method 1
a cooling fan, and where the cooling fan is for moving the cooling air from the front of the chassis towards the back of the chassis
Implementation Method 2
the flow of cooling air (which can be ambient air) is from the front of the chassis structure to the back of the chassis structure
Data Source
AI summary
A chassis structure is disclosed. The chassis structure has a chassis with a storage space and a computer node. The storage space is provided for accommodating the computer node. The node has a body removably stored in the storage space. The body has a front and a back portion. The node has a tray frame located in the front portion. The node has a sliding assembly for longitudinally and slideably moving the tray frame between a received and a withdrawn position. The back portion has a first and a second ducting structure, and is provided for accommodating two components. The first ducting structure disposed over the first component, and the second ducting structure disposed over the second component. The first ducting structure is offset from the second ducting structure for guiding different portions of the fluid flow over the first component and the second component, respectively.