Electronic Card Connector Ejecting Mechanism Design
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Solution Overview
Problem
Existing electronic card connectors lack an efficient ejecting mechanism that ensures secure locking and easy ejection of electronic cards, particularly for cards without notch-like lock concave portions.
Innovation Solution
An electronic card connector design featuring an insulative housing, terminals, a metal shell with an elastic piece, and a resilient ejecting mechanism comprising a slider, spring, and lever, which engages and disengages to securely lock and eject the card using a combination of elastic and spring-driven movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional lock spring and cam groove mechanism is used, then card locking is achieved, but the ejecting mechanism is inefficient and complex
Solution Approach 1:
The ejecting mechanism is segmented into distinct functional components: a slider for lateral movement, a push rod for forward ejection force, and a pivotable lever that coordinates between them. This segmentation allows each component to perform its specific function efficiently, simplifying the overall ejection process while maintaining reliability.
Solution Approach 2:
The mechanism employs dynamic movement through the pivotable lever that rotates about a pivot point, transforming lateral slider motion into coordinated push rod activation. This dynamic coordination enables automatic ejection sequence without complex control systems, improving ease of operation while managing device complexity.
2Reliability
If a simple slider mechanism is used, then device complexity is reduced, but card locking reliability is insufficient
Solution Approach 1:
The pivotable lever acts as an intermediary component that mediates between the slider's lateral movement and the push rod's ejection action. This intermediary ensures reliable card locking by coordinating the movements of multiple components, achieving dependable locking without requiring excessive mechanical complexity.
Solution Approach 2:
The mechanism is designed to be self-actuating through the coordinated interaction of the slider, lever, and push rod. When the slider moves laterally, the pivotable lever automatically translates this motion into push rod activation, enabling the system to perform the ejection function without external intervention or complex control mechanisms.
3Productivity
If multiple components are added for reliable ejection, then ejection efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The slider serves multiple functions: it provides the lateral movement for card insertion/removal indication and simultaneously acts as the actuator that triggers the pivotable lever and push rod for ejection. This multi-functionality improves ejection efficiency by consolidating actions into a single component movement, while easing manufacture by reducing the number of separate actuators needed.
4Strength
If a complex spring mechanism is used, then card retention force is increased, but device complexity and assembly difficulty increase
Solution Approach 1:
The resilient mechanism applies spring force locally at specific engagement points rather than requiring a complex distributed spring system. This localized application of elastic force provides sufficient card retention strength while keeping the overall mechanism simple and easy to assemble, avoiding the need for multiple springs or complex spring arrangements.
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 efficient locking and ejection of electronic cards by preventing wrong insertions and ensuring reliable card retention and removal through the coordinated action of the elastic piece, spring, and lever, enhancing the overall functionality of the card connector.
Implementation Method 1
The elastic piece has a flexible piece. The ejecting mechanism has a slider and a resilient mechanism. The slider is urged by the flexible piece to assume a final position when an electronic card is fully inserted.
Implementation Method 2
A part of the resilient mechanism is moveable forwardly to engage the slider and then is backwardly moveable together with the engaged slider to eject the inserted electronic card.
Data Source
AI summary
An electronic card connector (100) includes an insulative housing (1), a number of terminals (2) retained in the insulative housing, a metal shell (4) having an elastic piece (4), and an ejecting mechanism (5) located on a side of the insulative housing. The ejecting mechanism includes a slider (51) and a resilient mechanism. The slider is urged by the elastic piece to assume a final position when an electronic card is fully inserted. A part of the resilient mechanism is moveable forwardly to engage the slider and then is backwardly moveable together with the engaged slider to eject the inserted electronic card.