Three-Part Optical Fiber Connector Plug for Automated Assembly

The patent merges multiple protective and connection functions into three integrated components: the plug assembly combines ferrule positioning and fiber protection; the pressure sleeve integrates cable securing and strain relief; the outer housing kit unifies structural protection and connector assembly. This consolidation maintains connection reliability while reducing assembly complexity to enable automated production.

The connector plug is segmented into three independently manufacturable components (plug assembly, pressure sleeve, outer housing kit), each providing specific protection functions. The plug assembly protects the fiber end face, the pressure sleeve protects against cable strain, and the outer housing provides environmental protection. This segmentation enables each component to be manufactured separately with optimized processes, then assembled automatically, improving both protection capability and manufacturing ease.

The inner housing kit employs asymmetric locking features: circumferential locking is achieved through directional grooves and protrusions that engage the ferrule at specific orientations, while axial locking uses a tapered or stepped interface that prevents pull-out. This asymmetric design provides stable multi-directional locking with minimal structural complexity, as the locking features are integrated into the housing geometry rather than requiring separate mechanical elements.