Optical Module Latch Mechanism for Density and Ease of Operation
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Solution Overview
Problem
The physical manipulation of pluggable transceivers in networking hardware, such as inserting, removing, and latching them in host devices, is challenging due to their small size and increased density in modern networking equipment, which affects interoperability and manufacturing efficiency.
Innovation Solution
A novel latch mechanism for pluggable optical modules, featuring a slide with interconnected cylinders, a rotatable bail, and a ramp, allows for secure engagement and disengagement by translating rotational forces through a dual cylinder mechanism, enabling easy insertion and removal while maintaining compatibility with SFP, SFP+, and XFP specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If pluggable transceivers are made smaller to increase networking equipment density, then networking equipment density is improved, but physical manipulation difficulty increases
Solution Approach 1:
The latch mechanism is designed to be automatically engaged when the optical module is inserted into the host device. The slide and bail components work together such that insertion motion automatically triggers the latching action without requiring separate manual latching steps, making the system self-servicing during the insertion operation.
Solution Approach 2:
The bail acts as an intermediary component between the user's manual operation and the latch engagement. By manipulating the bail, the user indirectly actuates the slide and post mechanisms that secure the optical module, providing a mechanical advantage that eases the physical manipulation required for small-density components.
2Reliability
If a latch mechanism is added to secure pluggable transceivers, then connection reliability is improved, but device complexity increases
Solution Approach 1:
The latch mechanism components (slide, bail, post, and ramp) are integrated into a unified assembly where the slide serves dual purposes as both a structural support element and a latching actuator. The bail combines rotational and translational movements to simultaneously engage and secure the latch, reducing the number of separate components needed.
Solution Approach 2:
The slide component performs multiple functions: it provides structural support for the optical module, acts as a guide for the post movement, and serves as the primary actuator for the latching mechanism. The bail similarly functions as both a user interface element and a mechanical lever that translates user input into latching motion.
3Productivity
If standardized MSA specifications are used for pluggable transceivers, then manufacturing efficiency is improved, but physical manipulation difficulty increases due to small size
Solution Approach 1:
The latch mechanism is designed to be automatically engaged when the optical module is inserted into the host device. The slide and bail components work together such that insertion motion automatically triggers the latching action without requiring separate manual latching steps, making the system self-servicing during the insertion operation.
Solution Approach 2:
The bail acts as an intermediary component between the user's manual operation and the latch engagement. By manipulating the bail, the user indirectly actuates the slide and post mechanisms that secure the optical module, providing a mechanical advantage that eases the physical manipulation required for small-density components.
Data Source
AI summary
A latch mechanism for a pluggable optical module includes a slide disposed in the pluggable optical module, wherein the slide includes a front cylinder connected to a rear cylinder with a slide body therebetween and a post connected to the rear cylinder; a bail over a top of a front portion of the pluggable optical module and rotatably connected thereto, wherein the bail includes a first cutout portion on each side in which the front cylinder is moveably positioned therein; a ramp disposed within the pluggable optical module for sliding the rear cylinder thereon; and a notch disposed within the pluggable optical module for translating force from the post thereto responsive to the bail moving the front cylinder, the front cylinder applying force to the rear cylinder via the slide body, and the rear cylinder translating the force to the post.