Toolless Card Bracket Coupling System for PCIe Slots
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Solution Overview
Problem
Conventional PCIe card bracket connection methods require tools, making the process time-consuming and cumbersome, especially when switching between full-height and half-height card slots.
Innovation Solution
A toolless card securing subsystem that transitions between securing and coupling orientations without tools, allowing for easy mounting and demounting of PCIe cards to different bracket configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional screw-based bracket connection methods are used, then reliable mechanical coupling is achieved, but the operation becomes time-consuming and cumbersome
Solution Approach 1:
The patent replaces the traditional screw-based mechanical fastening system with a spring-loaded push-button coupling mechanism. The spring provides continuous mechanical pressure to maintain the card-bracket connection, while the push-button allows tool-free release, eliminating the need for screwdrivers and manual threading operations.
Solution Approach 2:
The spring-loaded coupling mechanism automatically maintains the card-bracket connection through continuous spring pressure, requiring no manual intervention for tightening or securing. The system self-regulates the mechanical coupling force, providing reliable attachment without user effort beyond the initial insertion and button press.
2Strength
If tool-based screw fastening is used, then secure card mounting is achieved, but the process requires multiple steps and tools
Solution Approach 1:
The patent combines the securing and releasing functions into a single integrated push-button mechanism. The button simultaneously controls the spring engagement and disengagement, merging multiple operations (positioning, securing, and releasing) into one simple user action, thereby reducing procedural complexity while maintaining mounting security.
Solution Approach 2:
The coupling mechanism transitions from a static screw-threaded connection to a dynamic spring-loaded system. The spring continuously adapts to maintain optimal contact pressure, and the push-button enables rapid state changes between locked and unlocked positions, reducing the complexity of the connection process while ensuring secure mounting.
3Adaptability or versatility
If multiple bracket types are provided for different card slots, then adaptability to various configurations is achieved, but the time required for slot changes increases
Solution Approach 1:
The spring-loaded push-button coupling mechanism is designed as a universal interface that works with all bracket types (full-height and half-height). The same coupling mechanism can be used across different card slot configurations, eliminating the need for users to locate and switch between different bracket types, thereby reducing slot change time while maintaining adaptability.
Solution Approach 2:
The card is pre-assembled with the spring-loaded coupling mechanism during manufacturing, so that when slot changes are needed, users only need to press the button and remove the card-bracket assembly. The bracket can then be quickly attached to a different slot configuration without requiring disassembly or tool use, significantly reducing the time for adapting to different slot types.
Data Source
AI summary
A toolless card/bracket coupling system includes a card bracket base that mounts to a chassis with a chassis mounting configuration, spaced-apart card securing support members extending from the card bracket base, and a toolless card securing subsystem on each of the card securing support members. Each toolless card securing subsystem may move towards a respective card aperture defined by the card while in a securing orientation, engage its respective card aperture and, in response, transition to a coupling orientation that allows that toolless card securing subsystem to move through its respective card aperture and, in response to extending through its respective card aperture and through the card, transition back to the securing orientation to secure the card to the card bracket base via engagement with the card.