Reversible Fan Module Airflow Direction Control
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Solution Overview
Problem
Electronic components in close proximity generate excessive heat, and existing cooling systems often fail to efficiently manage airflow, leading to increased temperatures due to trapped hot air in enclosed structures.
Innovation Solution
A reversible fan module with two orientations that can change airflow direction within a chassis, using attachment members with orientation codes to ensure proper power transmission and airflow management, and a system that includes a controller to determine the acceptability of fan module orientations and power them accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fan unit is used for cooling, then the device complexity is reduced, but the reliability decreases because the system fails if the single fan unit fails
Solution Approach 1:
The patent changes the operational parameter of the fan module by enabling it to rotate between different orientations (e.g., 0 degrees and 180 degrees). This allows a single fan module to replace multiple fixed fan units by changing its airflow direction through rotation, thereby reducing device complexity while maintaining reliability through redundancy
Solution Approach 2:
The fan module is made dynamically adjustable in orientation rather than being fixed in a single position. The ability to rotate between multiple orientations provides dynamic adaptability, allowing the system to switch cooling configurations as needed, which reduces the number of static cooling units required while maintaining system reliability
2Reliability
If multiple fan units are used for redundancy, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The single fan module is designed to perform multiple functions by rotating to different orientations. It can serve as multiple redundant cooling units depending on its orientation, eliminating the need for multiple dedicated fan units while maintaining the reliability benefits of redundancy
Solution Approach 2:
By changing the orientation parameter of the fan module, the system achieves multiple cooling configurations with a single physical unit, replacing what would traditionally require multiple fan units installed in different positions
3Ease of operation
If the fan module orientation is not verified, then the ease of operation is improved, but the reliability worsens due to improper power transmission
Solution Approach 1:
The system incorporates feedback through orientation detection (via orientation codes or sensors) that informs the control logic whether the fan module is properly oriented. This feedback mechanism ensures reliable power transmission by enabling power only when the correct orientation is detected, while maintaining ease of operation through automatic verification
Solution Approach 2:
The system performs preliminary verification of the fan module orientation before enabling power transmission. This preliminary check ensures that the module is correctly installed and oriented, preventing improper operation while maintaining a simple installation process for the user
Data Source
AI summary
A reversible fan module may include a first attachment member that may receive power from a controller when an orientation of the reversible fan module is a first orientation; a second attachment member that may receive power from the controller when the orientation of the reversible fan module is a second orientation; a first electrical connection, disposed between the first attachment member and the second attachment member, that may transmit power from the second attachment member to the first attachment member when the orientation of the reversible fan module is the second orientation; and a second electrical connection, disposed between the first attachment member and a fan unit, that may transmit power to the fan unit.