Interlocking Dust Cap Aligning Features for Fiber Optic Connector Parking
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Solution Overview
Problem
In fiber optic communications networks, loose connectorized pigtails within fiber distribution hub cabinets often become tangled, misplaced, or damaged, and dust caps are frequently lost or contaminated during testing, leading to potential damage to fiber optic connectors.
Innovation Solution
The implementation of dust caps with aligning features that interlock with parking clips and connector organizers to securely park and manage fiber optic connectors, preventing loss and contamination by maintaining the dust caps on the parking clips during connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If dust caps are removed from fiber optic connectors during testing, then the connectors can be tested, but the dust caps become lost or contaminated
Solution Approach 1:
The dust cap is designed with an interlocking feature that engages with the parking clip, creating an intermediary connection that allows the dust cap to be temporarily held during testing without being completely removed. This prevents loss and contamination while still enabling connector testing.
Solution Approach 2:
The dust cap contains an integrated aligning feature with an interlocking portion that nests within a slot of the parking clip. This nested structure allows the dust cap to be securely held in place during testing operations while remaining removable when needed.
2Ease of operation
If loose connectorized pigtails are individually managed within the fiber distribution hub cabinet, then connections can be made, but the pigtails become tangled and misplaced
Solution Approach 1:
The system segments the management of loose pigtails by providing individual parking clips for each connector, with each dust cap having its own interlocking aligning feature. This segmentation prevents tangling and misplacement by giving each component a designated position.
Solution Approach 2:
The aligning feature on the dust cap automatically engages with the parking clip slot when the connector is inserted, providing self-service organization without requiring manual arrangement. The interlocking design ensures proper positioning and prevents misplacement.
3Ease of manufacture
If dust caps are designed without interlocking features, then they are simple to manufacture, but they cannot be securely retained on parking clips
Solution Approach 1:
The aligning feature is designed with an asymmetric interlocking portion that has a width greater than the neck portion, creating a directional engagement with the parking clip slot. This asymmetric design provides secure retention while maintaining manufacturability through standard molding processes.
Data Source
AI summary
Dust caps, fiber optic connectors, fiber optic splitter modules and fiber optic connector systems including interlocking aligning features for fiber optic connector parking in fiber distribution hub networks are disclosed. According to one embodiment, a dust cap for mounting upon a ferrule of a fiber optic connector includes a sleeve extending lengthwise between opposed first and second ends. The sleeve defines a lengthwise extending bore that opens through the first end for receiving at least a portion of the ferrule. The dust cap further includes an aligning feature at the second end of the sleeve. The aligning feature includes a neck portion and an interlocking portion such that the interlocking portion has a width that is greater than a width of the neck portion. The aligning feature is configured to slidably engage with a slot of a parking clip.