Air Mover Direction Keying for Dual Airflow Datacenter Cooling
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Solution Overview
Problem
In datacenter environments, traditional approaches to configuring air movers in cold and hot aisles often result in incorrect airflow orientations, leading to inefficiencies and potential overheating issues in information handling systems.
Innovation Solution
An air mover assembly with cable maintenance features and a keying feature that mechanically interfaces with the chassis to prevent improper insertion, ensuring correct airflow direction configurations by using a combination of cable management features and keying features to guide and retain cables in specific orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If air movers are configured without directional keying, then installation flexibility is improved, but incorrect airflow orientation occurs leading to overheating issues
Solution Approach 1:
The patent applies asymmetry through keying features on the air mover assembly that are asymmetric in shape and position, designed to mate with corresponding asymmetric receiving features on the chassis. This ensures the air mover can only be installed in the correct orientation, preventing incorrect airflow direction while maintaining installation simplicity through the guided keying mechanism.
Solution Approach 2:
The keying features and receiving features act as intermediary mechanical elements between the air mover and chassis. These intermediaries provide a physical interface that guides and constrains the air mover into the proper orientation during installation, eliminating the need for complex alignment procedures while ensuring correct airflow direction.
2Reliability
If keying features are added to prevent improper insertion, then airflow direction reliability is improved, but device complexity increases
Solution Approach 1:
The keying features utilize asymmetric geometry that is simple in form but effective in function. The keying feature on the air mover includes a specific shape that matches only the corresponding receiving feature on the chassis, providing reliable directional control without requiring complex mechanisms, multiple components, or elaborate structures.
3Reliability
If cable maintenance features are added to maintain cable configuration, then installation reliability is improved, but device complexity increases
Solution Approach 1:
The cable maintenance features are merged with the existing air mover holder structure. The holder is designed to simultaneously support the air mover assembly and manage the cable routing, combining two functions into a single integrated component. This reduces overall complexity by eliminating separate cable management devices while ensuring proper cable configuration during installation.
Data Source
AI summary
An air mover assembly may include an air mover comprising a body and a cable extending from the body and one or more air mover holders mechanically coupled to the body. The one or more air mover holders may comprise a plurality of cable maintenance features and a keying feature. The plurality of cable maintenance features may include a first cable maintenance feature configured to maintain the cable in a first configuration of the air mover in a first airflow direction and a second cable maintenance feature configured to maintain the cable in a second configuration of the air mover in a second airflow direction. The keying feature may be configured to mechanically interface with an interfering feature of a chassis when an attempt is made to improperly insert the air mover into the chassis in accordance with a proper airflow direction configuration of the chassis, in order to prevent improper insertion of the air mover into the chassis in accordance with the proper airflow direction configuration of the chassis.