Card Connector Tray Ejection Mechanism Design
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Solution Overview
Problem
Card connectors in smartphones face a challenge in reducing their front-rear dimension while maintaining the durability of the ejection mechanism, as downsizing this mechanism often compromises its durability.
Innovation Solution
The card connector design includes a tray with a mechanism accommodation portion positioned forward of the first card accommodation portion, which accommodates the push portion of the ejection mechanism, allowing for a reduced front-rear dimension without compromising durability by ensuring the push portion has sufficient strength through the use of a thicker resin portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the ejection mechanism is downsized to reduce the front-rear dimension of the card connector, then the dimension is reduced, but the durability of the ejection mechanism is compromised
Solution Approach 1:
The invention relocates the mechanism accommodation portion forward in the front-rear direction, positioning it ahead of the first card accommodation portion. This spatial rearrangement allows the push portion to be supported by a thicker resin portion in the front region, effectively using dimensional redistribution to maintain structural strength while reducing the overall connector length.
Solution Approach 2:
The tray is designed with non-uniform thickness distribution, featuring a thicker resin portion in the front region where the mechanism accommodation portion is located. This local quality enhancement provides targeted structural support to the push portion, ensuring durability is maintained in the critical ejection region while allowing other areas to be more compact.
2Device complexity
If the ejection mechanism is simplified to reduce space requirements, then the device complexity is reduced, but the reliability of tray ejection is compromised
Solution Approach 1:
The invention modifies the geometric parameters of the tray structure, specifically increasing the thickness of the resin portion in the front region. This parameter change enhances the structural integrity and durability of the push portion, ensuring reliable tray ejection function while maintaining a simplified mechanism design.
Data Source
AI summary
A card connector comprises a connector main and a tray. The connector main is configured to receive the tray along a front-rear direction. The connector main is provided with an ejection mechanism for ejecting the tray. The ejection mechanism has at least a push portion which pushes the tray upon ejection of the tray. The tray has a first card accommodation portion, a second card accommodation portion and a mechanism accommodation portion. The mechanism accommodation portion is positioned forward of the first card accommodation portion in the front-rear direction. The mechanism accommodation portion is provided with a pushed portion. The mechanism accommodation portion accommodates at least the push portion under a received state where the tray is received in the connector main. When the push portion pushes the pushed portion, the tray is ejected from the connector main.