Connector Tray Push-Push Mechanism for Tool-Free Ejection
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Solution Overview
Problem
Conventional connectors for card-shaped objects like SIM cards face issues with ejection due to excessive contact force between the card holder and the connector body, often requiring a pin-shaped tool for forced removal.
Innovation Solution
A connector tray with a push-push mechanism disposed between the tray body and the tray exterior portion, allowing the tray exterior portion to displace between a first position away from and a second position close to the tray body, enabling smooth ejection regardless of contact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the card holder is firmly held in the connector body to ensure stable connection, then connection reliability is improved, but ejection becomes difficult when contact force exceeds the push-push mechanism's pushing force
Solution Approach 1:
The card holder is divided into two functional parts: the tray body that remains in the connector body for stable connection, and the tray exterior portion that can be independently ejected. This segmentation allows the connection function and ejection function to operate independently, resolving the contradiction between stable holding and easy ejection.
Solution Approach 2:
The push-push mechanism acts as an intermediary between the user's ejection action and the tray body. By applying force to the tray exterior portion rather than directly to the tray body, the mechanism enables ejection without requiring the user to overcome the full contact force between the tray body and connector body, thus facilitating easy ejection while maintaining connection reliability.
2Reliability
If the card holder is firmly held in the connector body to ensure stable connection, then connection reliability is improved, but tool-based forced removal becomes necessary when ejection fails
Solution Approach 1:
By segmenting the card holder into tray body and tray exterior portion, the design eliminates the need for complex forced removal procedures. The tray exterior portion serves as a built-in ejection interface that users can directly manipulate, avoiding the need for external pin-shaped tools and simplifying the ejection procedure while maintaining reliable connection.
3Ease of operation
If the push-push mechanism is positioned in parallel to the card holder to enable ejection, then ejection function is achieved, but the mechanism is affected by contact force between the card holder and connector body
Solution Approach 1:
The push-push mechanism is repositioned from a parallel arrangement to a tandem arrangement, where it acts on the tray exterior portion in the insertion direction rather than in parallel to the tray body. This dimensional change allows the mechanism to operate independently of the contact force between the tray body and connector body, improving ejection reliability under high contact force conditions.
Data Source
AI summary
A connector tray inserted into a connector body in an insertion direction while accommodating an object to be connected includes a tray body configured to accommodate the object to be connected, a tray exterior portion connected to the tray body to be displaceable along the insertion direction, and a push-push mechanism disposed between the tray body and the tray exterior portion in a tandem arrangement and configured to displace the tray exterior portion in the insertion direction between a first position away from the tray body and a second position close to the tray body.