Optical Transceiver Pull-Handle Cantilever Stop for Linear Insertion
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Solution Overview
Problem
Current optical transceiver modules face complexity in assembly and disassembly processes due to the need to align pull-tabs at angles, which complicates access to internal components and can lead to dislodging during horizontal motion, especially in hot swapping scenarios.
Innovation Solution
Implementing a cantilever mechanism within the pull-tab mechanism to provide a hard-stop feature that constrains movement in all degrees except translation, allowing for linear insertion and easy access to internal components without opening the enclosure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pull-tab mechanism is used to facilitate insertion and removal of the optical transceiver, then ease of operation is improved, but device complexity increases due to the need for angled insertion and constrained movement
Solution Approach 1:
The pull-tab mechanism is segmented into distinct functional components: a pull-tab portion for user interaction, a slide component for linear motion, and a cantilever mechanism for constraining movement. This segmentation allows each component to perform its specific function independently, simplifying the overall design while maintaining ease of operation.
Solution Approach 2:
The cantilever mechanism provides dynamic constraint that adapts during insertion and removal operations. The cantilever allows controlled movement in specific directions while automatically constraining movement in other directions, enabling the mechanism to transition between constrained and less-constrained states based on operational needs.
2Ease of operation
If the top shell is disposed at an angle of insertion to situate the pull-tab, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
Instead of angling the top shell to accommodate the pull-tab, the invention inverts the approach by providing a hard-stop feature that constrains the pull-tab to linear horizontal motion. This eliminates the need for angular alignment during manufacturing while still enabling easy pull-tab access and operation.
Solution Approach 2:
The hard-stop feature automatically constrains the pull-tab mechanism to move only in the intended linear direction during insertion and removal. This self-constraining mechanism eliminates the need for precise angular manufacturing tolerances, as the geometry of the hard-stop and slide component inherently guides the motion.
3Ease of operation
If the pull-tab mechanism allows translation motion for insertion and removal, then ease of operation is improved, but reliability decreases due to potential dislodging during horizontal motion
Solution Approach 1:
The cantilever mechanism provides dynamic constraint that adapts during operation. During normal horizontal insertion and removal, the cantilever allows smooth linear motion. However, during hot swapping operations or unexpected horizontal forces, the cantilever engages to constrain movement and prevent dislodging, thereby maintaining reliability while preserving ease of operation.
Solution Approach 2:
The hard-stop feature and cantilever constraint are designed to preemptively counteract potential dislodging forces. By providing preliminary geometric constraints, the mechanism prevents component dislodging before it can occur during hot swapping or abnormal horizontal motion, rather than reacting after dislodging begins.
Data Source
AI summary
In one embodiment, an apparatus includes an upper housing, a lower housing couplable to the upper housing, and an optical-electrical assembly enclosed by the upper housing and the lower housing. The optical-electrical assembly includes a slide component including a cantilever mechanism, a substrate coupled to the slide component, a plurality of opto-electric components disposed on the substrate, interface integrated circuits disposed on the substrate, and a pluggable electrical interface disposed on the substrate and electrically couplable to the interface integrated circuits. The apparatus further includes a pull handle mechanism coupled to the slide component. The cantilever mechanism is configured to cause the slide component to stop at a fixed location when the slide component is engaged with the lower housing.