Pull Rod Alignment Key for Fiber Optic Connector Release
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Solution Overview
Problem
High-density optical fiber connectors and adapters face challenges in compact design, ease of deployment, and reliability due to obstructed access to release mechanisms, leading to potential overstressing and reduced network performance.
Innovation Solution
A push/pull mechanism with an alignment key connector that includes retractable pins and notched corners to facilitate easy release and alignment, reducing the need for tools and minimizing stress on cables and connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If connector size and spacing are reduced to increase density, then the number of connectors per footprint increases, but access to release mechanisms becomes obstructed and cable stress increases
Solution Approach 1:
The release mechanism transitions from a static button requiring manual depression to a dynamic spring-loaded button that automatically activates when pulled. This allows operators to release connectors by simply pulling the connector body without needing to access or manipulate the release button directly, solving the access obstruction problem in high-density configurations
Solution Approach 2:
A pull rod or alignment key is introduced as an intermediary component that couples the operator's pulling force to the release mechanism. This intermediary allows force application at a convenient location away from the obstructed release button, enabling easy connector release even in densely packed arrangements where direct access is blocked
2Area of stationary object
If connector size is reduced to increase density, then footprint space is optimized, but manufacturing precision and assembly difficulty increase
Solution Approach 1:
The alignment key features an asymmetric cross-sectional shape (e.g., rectangular or D-shaped) that corresponds to a matching asymmetric slot in the adapter. This asymmetric geometry provides inherent alignment guidance, ensuring the connector inserts in the correct orientation and maintains precise alignment during assembly, thereby compensating for the reduced connector size
Solution Approach 2:
The alignment key replaces complex mechanical alignment features (such as precision-machined surfaces or multiple registration pins) with a simpler keyed interface. This substitution maintains manufacturing precision while reducing the overall connector footprint and simplifying the manufacturing process
3Ease of operation
If manual access to release mechanism is required, then tool usage is avoided, but operator time and physical effort increase
Solution Approach 1:
The spring-loaded release button creates a self-service mechanism where the connector's own removal action (pulling) automatically triggers the release. The spring stores energy during insertion and releases it during removal, causing the button to pop out and disengage the latch automatically, eliminating the need for manual button depression and significantly reducing release time
Data Source
AI summary
An optical connector holding one or more LC-type optical ferrules is provided. The optical connector includes an outer housing, pin keep, and two pins. One pin acts as a push/pull mechanism to release the connector from the adapter. The pin keep has two side clips with one of two side clips having an alignment key on a top surface. The alignment key engages a corresponding surface in the adapter housing to aid in polarity setting of the connector with the adapter. The adapter has a panel mounting clip that contains one or more latches that engage and retain the connector in the adapter housing. The panel clips and surfaces of the connector are constructed to reduce the overall size of the connector and adapter. The adapter has a plural of internal ribs forming one or more channels.