Quick Connector Assembly With Visible Lock Verification
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Solution Overview
Problem
Conventional quick connectors often fail to provide a reliable and leak-free connection due to issues with locking mechanisms, leading to depressurization and leaks in fluid communication systems, particularly in automotive and electric vehicle cooling circuits.
Innovation Solution
The quick connector assembly incorporates a housing, retainer ring, retainer clip, and verification tab, where the verification tab slides into a positive verification position upon proper insertion, providing a visible indication of correct installation and locking, ensuring a secure fluid-tight seal through the engagement of locking elements with the retainer ring and housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional quick connectors use locking mechanisms to connect components, then connection speed is improved, but connection reliability deteriorates due to failed locking
Solution Approach 1:
The verification tab provides visual feedback to indicate whether the male connector is properly inserted and locked into the female connector. When the male connector is fully inserted, the verification tab moves to a visible position above the housing, confirming proper connection. This feedback mechanism ensures reliable locking while maintaining quick connection capability.
2Reliability
If conventional quick connectors lock components together, then fluid-tight connection is achieved, but indication of proper installation is lost
Solution Approach 1:
The verification tab changes its visible state (position) to indicate installation status. When properly installed, the verification tab moves to a visible position above the housing exterior, providing clear visual indication that the connection is complete and fluid-tight. This resolves the information loss by making installation status visually apparent.
3Loss of information
If verification tab is added to indicate proper installation, then installation verification is improved, but device complexity increases
Solution Approach 1:
The verification tab is integrated into the existing retainer ring structure, serving both as a locking component and a verification indicator. This multi-functional design provides installation verification without significantly increasing overall device complexity, as the verification function is incorporated into an existing structural element rather than adding a completely separate mechanism.
Data Source
AI summary
A quick connector (QC) assembly comprises a housing defining a fluid passageway extending along an axis at an open end, a retainer ring disposed in the open end and defining a slot, a retainer clip secured to the housing and at least partially disposed within the fluid passageway at the open end, and a verification tab disposed within the slot. The tab is slideably displaceable along the slot between a negative position, where the tab is completely disposed within the housing, and a positive position, where a portion of the tab is visibly disposed above an exterior surface of the housing.