Rotary-Lock Plug Connector for Easy Photoelectric Module Replacement
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Solution Overview
Problem
Conventional plug connectors require complex and difficult operations to replace the photoelectric conversion module, particularly due to the need to detach the stopper and turn the coupling nut, which hampers workability.
Innovation Solution
A plug connector design featuring a Z-axis-direction locking mechanism and a rotation locking mechanism using a locking member with spring pieces and claws, allowing easy detachment and assembly of the end bell from the barrel by rotating it in a specific direction after releasing the locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional plug connector uses a stopper and coupling nut to secure the photoelectric conversion module, then the connection stability is improved, but the ease of operation deteriorates due to complex detachment procedures
Solution Approach 1:
The locking mechanism is divided into two independent functions: a Z-axis locking mechanism with convex/concave portions for axial retention, and a rotational locking mechanism with claws and spring pieces for angular positioning. This segmentation allows each mechanism to be optimized independently, providing stable connection while enabling easy release through simple rotational motion.
Solution Approach 2:
The locking member incorporates spring pieces that provide dynamic elastic force, allowing the claws to automatically engage with the barrel's convex portions during rotation. The spring-loaded design enables the locking mechanism to adapt to manufacturing tolerances and maintain reliable connection while allowing easy release when rotational force is applied.
2Strength
If a plug connector uses a screwing coupling nut to fasten the front and rear portions, then the structural strength is improved, but the productivity deteriorates due to time-consuming assembly and disassembly
Solution Approach 1:
The traditional screwing coupling mechanism is replaced with a rotational locking system that uses elastic spring pieces and claw-shaped locking members. This substitution eliminates the need for threaded fastening operations, reducing assembly and disassembly time while maintaining structural integrity through the elastic locking action of the spring-loaded claws.
3Reliability
If a plug connector uses a complex locking mechanism to prevent module detachment, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The Z-axis locking function and rotational locking function are merged into a single integrated locking member that combines convex portions for axial engagement, spring pieces for elastic force generation, and claws for rotational positioning. This merging reduces the total number of separate components while achieving multiple locking functions simultaneously, thereby reducing overall device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy replacement of the photoelectric conversion module by simplifying the detachment process, reducing the complexity and effort required for maintenance and upgrades.
Implementation Method 1
a pair of spring pieces (82), which has an elastic restoring force against an external force that reduces a distance between the spring pieces
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
In a plug connector (10) that incorporates an optical connector (60) and a photoelectric conversion module (50) connected with the optical connector (10), the optical connector (10) attached to an optical cable (200) is accommodated in an end bell (70) and the photoelectric conversion module (50) is accommodated in a barrel (41) inserted into a mating receptacle connector. The barrel (41) and the end bell (70) go in a fitting completion state (locked state) by a Z-axis-direction locking mechanism and a rotation locking mechanism around the Z axis when the end bell (70) is fitted to the barrel (41) and the end bell (70) is rotated about an axial center thereof (Z axis). The end bell (70) can be detached from the barrel (41) when the end bell (70) is rotated in a reverse direction to that in locking while operating the locking member (80) functioning as a rotation lock and releasing the rotation lock.