Optical Fiber Adapter Positioning in Optical Modules
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Solution Overview
Problem
Existing optical modules face challenges in maintaining stable optical signal transmission due to issues with optical fiber adapters that can cause rotation and loosening, leading to performance degradation and potential failure of the light-outputting path.
Innovation Solution
The optical module design incorporates a first optical fiber adapter with a protrusion and positioning mechanism, fixed within installation grooves on the lower shell, preventing rotation and ensuring secure alignment of the optical fiber adapters, thereby enhancing stability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical fiber adapters are used to connect optical fibers, then optical signal transmission is enabled, but rotation of the adapters can cause damage to internal optical fibers leading to instability
Solution Approach 1:
The patent applies preliminary anti-action by introducing a positioning mechanism that prevents rotation of the optical fiber adapter before rotation damage can occur. The positioning mechanism includes positioning protrusions and positioning grooves that engage to restrict rotational movement, thereby counteracting the harmful rotational effect before it can damage the optical fibers.
Solution Approach 2:
The patent implements preliminary action by pre-configuring the optical fiber adapter with a positioning structure that limits rotation range. The positioning protrusions and grooves are designed in advance to engage and restrict rotation, preventing the adapter from rotating to damaging positions before the harmful effect can manifest.
2Ease of operation
If optical fiber adapters are made rotatable for connection purposes, then ease of operation is improved, but precision and stability of optical signal transmission deteriorate
Solution Approach 1:
The patent applies dynamics by designing the optical fiber adapter with controlled rotational capability. The adapter can rotate within a limited range defined by the positioning mechanism, allowing operational flexibility while preventing excessive rotation that would compromise precision. The positioning protrusions and grooves enable the adapter to be positioned at specific angular orientations.
Solution Approach 2:
The patent employs asymmetry in the positioning mechanism design, where the positioning protrusions and grooves are configured with specific asymmetric geometries that allow rotation in one direction while limiting rotation in the opposite direction. This asymmetric configuration enables ease of operation for connection while maintaining precision by restricting the adapter to specific angular positions.
3Reliability
If transparent material members with different light transmittance are used for optical fiber and connector, then optical coupling is facilitated, but assembly precision requirements increase
Solution Approach 1:
The patent applies local quality by using transparent material members with different light transmittance properties at different locations in the optical path. The optical fiber and connector are made of transparent materials with specific transmittance characteristics suited to their respective functions, optimizing optical coupling efficiency while the positioning mechanism ensures they are assembled with the required precision.
Data Source
AI summary
An optical module includes a circuit board, a light-emitting housing, a first optical fiber adapter, a first internal optical fiber, and an optical fiber connector. An end of the first internal optical fiber is connected to the first optical fiber adapter, and the optical fiber connector is optically connected to the light-emitting component and wraps another end of the first internal optical fiber. The first internal optical fiber and the optical fiber connector are transparent material members, and light transmittance of the two is different. The light-emitting housing includes a bottom wall and a concave groove. The optical fiber connector is disposed on the bottom wall, and a portion of the optical fiber connector is located above the concave groove. An orthogonal projection of the another end of the first internal optical fiber on the bottom wall is located in the concave groove.