Edge Card Mounting Rack With Elastic Adjustment For Vibration Resistance
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Solution Overview
Problem
Existing edge card mounting structures face issues with secure electrical connections due to loosening from vibrations and require manual tool use for assembly, which is inefficient.
Innovation Solution
An edge card mounting structure featuring a rack with elastic adjustment members and retaining spring plates that securely engage with an electrical connector without tools, ensuring stable high-frequency signal transmission and tool-free assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking device is used to fix the expansion card, then the card can be secured initially, but the locking device loosens due to vibration during operation, causing the card to become loose and jump out
Solution Approach 1:
The patent uses elastic adjustment members that can dynamically adapt to position deviations caused by vibration. The elastic bearing plates and adjustment members allow the edge card to maintain stable electrical contact despite external vibrations, transforming the rigid locking structure into a dynamic one that absorbs vibration effects.
Solution Approach 2:
The patent incorporates elastic bearing plates and adjustment members that provide beforehand cushioning against vibration effects. These elastic components are designed to absorb and mitigate vibration impacts before they can cause the edge card to become loose or jump out of the connector.
2Reliability
If screws are used to affix the edge card rack to the circuit board, then the rack can be securely mounted, but manual tool use is required which is time-consuming and inefficient
Solution Approach 1:
The patent employs snap-fit structures where the rack automatically engages with the circuit board through elastic deformation and mechanical interlocking. The elastic bearing plates and adjustment members enable the rack to self-secure without requiring manual screw fastening, making the assembly process tool-free and highly efficient while maintaining secure mounting.
3Volume of moving object
If the connector height is reduced to meet process limits, then the design meets manufacturing constraints, but the assembly complexity increases requiring precise alignment and manual tool use
Solution Approach 1:
The patent uses elastic adjustment members that provide dynamic adaptation capability within the compact structure. This allows the reduced-height connector to automatically compensate for alignment variations during assembly, eliminating the need for complex manual alignment procedures despite the compact dimensions.
Solution Approach 2:
The snap-fit structures with elastic components enable automatic engagement and positioning of the rack and edge card assembly. This self-aligning mechanism reduces assembly complexity despite the reduced connector height, allowing tool-free installation without requiring precise manual alignment.
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 solution provides a secure, vibration-resistant electrical connection and eliminates the need for manual tools during assembly and installation, enhancing efficiency and reliability.
Implementation Method 1
two adjustment members that are elastically pressable to move the accommodated edge card downward into abutment against the bearing plates
Implementation Method 2
the electric contacts of the edge card are kept in positive contact with the conducting terminal set of the electrical connector for transmitting high frequency signals stably
Data Source
AI summary
An edge card mounting structure includes an edge card, an electrical connector disposed on a circuit board, and a rack that holds the edge card and is inserted into the electrical connector to electrically connect the edge card to the electrical connector. The rack includes a rack body that accommodates the edge card, two bearing plates bilaterally disposed in the rack body, and two adjustment members that are elastically pressable to move the accommodated edge card downwardly into abutment against the bearing plates where the electric contacts of the edge card are kept in contact with the respective contact endpieces of the conducting terminal set of the electrical connector for transmitting high frequency signals.