Lock Down Device for Liquid-Cooled Expansion Cards
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Solution Overview
Problem
Existing lock down devices are inadequate for securing heavier, liquid-cooled expansion cards and fail to effectively retain multiple interconnected cards, leading to increased service costs and risk of dislodgment during manufacturing, transportation, and movement.
Innovation Solution
A lock down device with a securing mechanism, including seating slots and a receiving port for liquid cooling tubes, designed to securely attach to a computer case, providing stability and rigidity for single or multiple expansion cards, including those with liquid cooling systems and dual/quad card configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single screw is used to secure expansion cards, then the device complexity is reduced, but the reliability of securing heavier liquid-cooled cards deteriorates
Solution Approach 1:
The lock down device is segmented into multiple functional components: a body portion with seating slots for card retention, a receiving port for liquid cooling tubes, and a securing mechanism with multiple attachment points. This segmentation allows each component to perform its specific function effectively, providing reliable securing for heavy cards without requiring an overly complex overall structure.
Solution Approach 2:
The lock down device is designed as a multi-functional component that simultaneously: (1) provides mechanical retention through seating slots, (2) supports liquid cooling infrastructure through the receiving port, and (3) secures the assembly to the chassis. This multi-functionality consolidates multiple securing and support functions into a single device, improving reliability without proportionally increasing complexity.
2Device complexity
If prior art lock down devices are used, then device complexity remains low, but the adaptability to accommodate liquid cooling tubes and multiple card configurations deteriorates
Solution Approach 1:
The lock down device integrates multiple functions into a single component: mechanical retention through seating slots, liquid cooling support via the receiving port, and chassis securing through the securing mechanism. This universal design allows the same device to handle standard cards, liquid-cooled cards, and participate in multi-card configurations without requiring separate specialized components.
Solution Approach 2:
The receiving port is designed to nest within the body portion of the lock down device, allowing liquid cooling tubes to pass through the device structure. This nesting arrangement accommodates the cooling infrastructure without significantly increasing the external dimensions or complexity of the lock down device itself.
3Power
If heavier liquid-cooled cards are used, then graphics performance is improved, but the stability of card retention during movement deteriorates
Solution Approach 1:
The lock down device segments the retention function into multiple contact points through its seating slots, which engage with different portions of the expansion card. This distributed contact approach provides stable retention for heavy cards by spreading the mechanical load across multiple engagement points rather than relying on a single attachment point.
Solution Approach 2:
The seating slots are specifically designed with local geometric features that match the profile of expansion cards, providing optimized contact and retention at the card-device interface. This local quality enhancement ensures stable retention of heavy cards without requiring a complete redesign of the entire securing system.
Data Source
AI summary
A lock down device is disclosed that provides lateral stability and rigidity to at least one elongated item in relationship to a support structure. The lock down device may comprise a securing mechanism for use securing the device to the support structure. A receiving port, optionally strengthen with a brace, may be included to enable liquid cooled boards to be used in conjunction with the device. Seating channels, along either the first and/or second side retain and support the item and, at the proximal end, an L-shape may be used to provide additional support. A bridge notch may be placed in the first and/or second sides to enable the locking device to seat properly when a bridge is used to connect two boards. The lock down device may be secured through locking tabs having receiving holes for screws V-shaped tabs, button tabs, or any other applicable mechanism.