Card Edge Connector Elastic Clamping Vibration Prevention
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Solution Overview
Problem
Conventional card edge connectors experience unstable electrical connections due to shaking or vibration of inserted cards, which affects the mechanical connectivity and reliability of the connection.
Innovation Solution
A card edge connector design featuring a base housing with interlaced clamping portions and an elastic clamping part, including a fastening base, elastic arm, and resisting portions, which guide and resist the insertion card to prevent movement and enhance secure connection with the connection terminals, thereby constraining the card's movement range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contact area between insertion card and connector is increased, then electrical connection stability is improved, but the insertion card becomes more prone to shaking or vibrating
Solution Approach 1:
The elastic clamping part is designed to be movable and adaptable, allowing it to dynamically adjust to the insertion card during insertion and then provide continuous clamping force to prevent vibration. The elastic arm can deflect during insertion and then maintain constant contact pressure on the card edge, resolving the contradiction between stable electrical connection and prevention of card shaking.
Solution Approach 2:
The elastic clamping part changes its physical state from unclamped to clamped, and the clamping force can be adjusted by changing the elastic properties or geometry of the arm. This allows the system to transition from a loose state during insertion to a tightly clamped state during operation, maintaining both ease of insertion and vibration prevention.
2Stability of the object's composition
If an elastic clamping part is added to constrain the insertion card, then vibration and shaking are prevented, but device complexity increases
Solution Approach 1:
The elastic clamping part is implemented as a thin, flexible elastic arm that can deflect and return to its original position. This flexible component provides the necessary clamping force to prevent vibration while maintaining a simple, lightweight structure that does not significantly increase the overall device complexity.
Solution Approach 2:
The elastic clamping part is designed to automatically engage with the insertion card during the insertion process itself, without requiring separate manual operation. The elastic arm deflects as the card is inserted and then automatically returns to its clamping position, providing self-service functionality that reduces operational complexity.
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 design effectively prevents vibration and shaking of the insertion card, ensuring a stable and secure mechanical connection with the card edge connector, enhancing the overall reliability of the electrical connection.
Implementation Method 1
a partial section of the elastic arm away from the fastening base being bent to form an elastic resisting portion
Data Source
AI summary
A card edge connector can allow an insertion card with a locating groove on one side to be inserted thereto, the card edge connector including: a base housing, and an elastic clamping part. Two ends of the base body have two clamping portions, one sides thereof which are opposite are concaved to form a limiting slot, respectively; the elastic clamping part is fastened within one of the clamping portions, the elastic clamping part comprising a fastening base, an elastic arm, an elastic resisting portion and a limiting portion, one end of the fastening base can be retained in the clamping portion, another end thereof being connected with the elastic arm, a partial section of the elastic arm away from the fastening base being bent to form the elastic resisting portion, which can be exposed correspondingly to the limiting slot of the clamping portion retained by the elastic clamping part, one end of the elastic arm away from the fastening base having the limiting portion, so that it can be retained in the clamping portion; thereby, the insertion card may be prevented from vibration or shaking after insertion.