Optical Communication Module Jig Pressing and Shielding
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Solution Overview
Problem
Existing optical communication modules face issues with high-frequency signal leakage and inefficient assembly due to insecure attachment methods, such as adhesive attachment and conventional fixing methods that compromise alignment and ease of use.
Innovation Solution
An optical communication module design featuring a receptacle with a brim portion and a jig system where the receptacle is inserted into a cutout portion smaller than the brim, with the jig pressing the brim against the chassis, ensuring stable attachment and shielding high-frequency signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receptacle is just fixed to the gauge with conventional fixing methods, then the assembly process is simple, but high-frequency signals leak from the coupling portion and optical fiber connector portion
Solution Approach 1:
The fixing structure is segmented into multiple functional components: a fixing jig with pressing portions for mechanical attachment, and a separate shielding structure with shielding portions for electromagnetic signal containment. This segmentation allows each component to specialize in its function while working together to solve both the simplicity and shielding requirements.
Solution Approach 2:
The shielding structure is nested within or integrated with the fixing jig structure. The shielding portions are positioned to surround the coupling portion and optical fiber connector portion, creating a nested configuration where the shielding function is embedded within the overall fixing assembly, achieving both compactness and effective signal containment.
2Ease of operation
If the receptacle is attached to the chassis with adhesive while aligning light axes, then attachment is achieved, but assembling efficiency degrades and attachment/detachment becomes difficult
Solution Approach 1:
The fixing method transitions from static adhesive bonding to a dynamic mechanical pressing system. The fixing jig applies controlled pressing force to attach the receptacle to the chassis, allowing for easy detachment by removing the pressing force. This dynamic approach enables repeated attachment and detachment operations without degradation of assembly efficiency.
Solution Approach 2:
The fixing jig serves as an intermediary tool that facilitates the attachment process. Rather than directly bonding the receptacle to the chassis with adhesive, the fixing jig mediates the attachment by applying pressing force through pressing portions, making the process reversible and efficient while maintaining proper alignment during attachment.
3Reliability
If conventional fixing methods are used without dedicated pressing structures, then device complexity is low, but the receptacle is not securely attached and high-frequency signals leak
Solution Approach 1:
The fixing jig is designed with multi-functionality, serving both as an attachment mechanism and as a shielding structure. The pressing portions provide secure mechanical attachment, while integrated shielding portions contain high-frequency signals. This universal design achieves reliable attachment and signal shielding without requiring separate dedicated structures for each function.
Data Source
AI summary
There is provided an optical communication module including a receptacle that has an optical element therein and a brim portion, a chassis on which the receptacle is mounted, and a jig into which the receptacle is inserted, that has an opening smaller than the brim portion, and that presses the brim portion to the chassis.