Expansion Card Support With Adjustable Airflow for Quiet Cooling
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Solution Overview
Problem
Existing information handling systems face challenges in effectively cooling and securing expansion cards, particularly those with increased size and weight, leading to noise and thermal inefficiencies due to high fan RPMs and potential air recirculation.
Innovation Solution
A support device with an adjustable mechanical holder system and configurable airflow system that includes an adjustable thermal opening, allowing for enhanced cooling capacity and reduced fan noise by permitting airflow through an adjustable cover and partitioning air zones to prevent recirculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If expansion cards are made larger to provide more functionality, then the card's processing capability is improved, but the card's weight and size increase, making it harder to secure and cool effectively
Solution Approach 1:
The support device features an adjustable mechanical holder system with movable clamps that can be positioned at different locations along the support device to accommodate expansion cards of various sizes and weights. The holder system can dynamically adjust its gripping force and position to securely hold heavier, more powerful cards while providing proportional support for lighter cards.
2Temperature
If fan RPM is increased to cool heavier expansion cards, then cooling capacity is improved, but noise levels increase
Solution Approach 1:
The support device includes pre-configured airflow channels and openings that are designed to optimize natural airflow patterns around the expansion card before the fan operates. These channels guide cooling air efficiently across hot components, allowing the fan to operate at lower RPMs while still achieving effective cooling, thereby reducing noise.
3Loss of energy
If airflow is restricted to prevent recirculation, then thermal efficiency is improved, but cooling capacity may be reduced
Solution Approach 1:
The support device incorporates partition walls that divide the airflow path into separate zones: an intake zone that directs cool air toward the expansion card, and an exhaust zone that channels warm air away from the card. This segmentation prevents hot air recirculation while maintaining adequate cooling capacity by ensuring fresh air supply and efficient heat removal.
4Device complexity
If a fixed support structure is used for expansion cards, then device complexity is reduced, but adaptability to different card sizes and weights is worsened
Solution Approach 1:
The support device is designed as a universal platform that can accommodate multiple types of expansion cards (PCI, PCI-X, PCI Express, etc.) of different sizes and weights. The adjustable mechanical holder system, combined with configurable airflow channels and multiple mounting positions, allows a single support device design to serve various card form factors without requiring custom-designed supports for each card type.
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
The support device enables quieter operation of expansion cards by allowing fans to run at lower RPMs, improving thermal efficiency and reducing noise levels while supporting cards of varying sizes and weights.
Implementation Method 1
an opening configured to permit air to pass through
Implementation Method 2
an adjustable cover configured to obscure airflow through at least a portion of the opening
Implementation Method 3
the cover may be configured to permit the at least one fan to move air through an unobscured portion of the opening
Data Source
AI summary
In one or more embodiments, an information handling system may include: at least one processor; a memory medium, communicatively coupled to the at least one processor, that stores an operating system and at least one application executable by the at least one processor; a chassis; an information handling system card port communicatively coupled to the at least one processor; a support device fastened to the chassis; and an expansion card coupled to the information handling system card port and fastened to the support device. In one or more embodiments, the support device may include an opening that permits air to pass through. In one or more embodiments, the support device may include a cover configured to obscure airflow through the opening of the support device. For example, the cover may be configured to unroll to obscure airflow through the opening of the support device.