Frame Mechanism for Tool-Free Board Card Fixing Under Vibration
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Solution Overview
Problem
Current methods for securing board cards in servers are cumbersome and unreliable, leading to potential signal loss and damage due to vibration and dropping, and do not facilitate tool-less disassembly.
Innovation Solution
A frame mechanism with a rotatable fixing bracket that locks and unlocks to secure the board card at both ends, allowing tool-free installation and removal, and includes features like elastic reset members and heat dissipation holes for enhanced stability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If another baffle piece is added and installed through a screw, then the board card is more securely fixed, but the assembly process becomes cumbersome and tool removal is required
Solution Approach 1:
The fixing bracket is designed to be rotatable relative to the frame body, transitioning between a locked state (fixing the board card) and an unlocked state (allowing easy removal). This dynamic mechanism eliminates the need for tools during disassembly while maintaining secure fixation during operation.
Solution Approach 2:
The elastic reset member automatically returns the fixing bracket to the locked state after the board card is inserted, providing self-fixing functionality without requiring additional tools or complex assembly procedures. The system serves itself by automatically securing the board card through the elastic recovery force.
2Reliability
If a screw-fixed baffle piece is used, then the board card is securely attached, but the disassembly process requires tools and becomes complicated
Solution Approach 1:
The fixing bracket rotates between locked and unlocked states, providing a simple tool-free disassembly mechanism. The dynamic rotation allows the bracket to be easily manipulated by hand to release the board card without requiring screwdrivers or other tools, significantly reducing disassembly complexity.
Solution Approach 2:
The elastic reset member acts as an intermediary that stores and releases energy to automatically return the fixing bracket to the locked position. This intermediary mechanism simplifies the overall system by eliminating the need for complex locking mechanisms or multiple components, reducing device complexity while maintaining secure attachment.
3Device complexity
If the board card is suspended at the back end, then the frame structure is simpler, but signal loss and damage occur under vibration and dropping
Solution Approach 1:
The fixing system is segmented into two independent parts: the baffle piece at the front end and the fixing bracket at the back end. This segmentation allows each component to independently support the board card, ensuring both ends are securely fixed without requiring a complex continuous support structure, thus maintaining simplicity while improving reliability under vibration and dropping.
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 frame mechanism provides stable installation of board cards under vibration and dropping conditions while enabling tool-free assembly and disassembly, enhancing operational reliability and convenience.
Implementation Method 1
the frame mechanism includes an elastic reset member, the elastic reset member is used to drive the fixing bracket to rotate so that the fixing bracket is in the locked state
Data Source
AI summary
Disclosed in the present disclosure is a frame mechanism and a board card module. The frame mechanism includes a frame body and a fixing bracket, a baffle piece of the frame body is configured to fix a front end of the board card, the fixing bracket moves relative to the frame body, and the fixing bracket fixes a rear end of the board card. A first limiting portion of the frame body and a second limiting portion of the fixing bracket form a limit fit to lock the fixing bracket onto the frame body, when the fixing bracket moves, the first limiting portion and the second limiting portion are in an unlocked state, the fixed bracket rotates relative to the frame body.