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, especially in applications like engine cooling circuits and battery cooling systems in electric or hybrid vehicles.
Innovation Solution
The improved quick connector assembly includes a housing, retainer ring, retainer clip, and verification tab, which allows for a visible indication of proper installation through a slideable verification tab that locks into a positive verification position, ensuring secure engagement and preventing rotation, thus enhancing the reliability of fluid connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional quick connectors use locking mechanisms to secure components, then connection strength is improved, but reliability deteriorates due to failed connections, depressurizations, and leaks
Solution Approach 1:
The verification tab provides visual feedback to confirm proper insertion and locking of the male connector. When the male connector is fully inserted, the verification tab moves to a visible position, giving the operator confirmation that the connection is secure and reliable, thereby resolving the reliability issue without compromising connection strength
Solution Approach 2:
The verification tab acts as an intermediary element between the locking mechanism and the operator. It translates the internal locking action into an externally visible signal, allowing the operator to verify proper engagement without directly observing the locking mechanism itself
2Device complexity
If conventional quick connectors use simple locking mechanisms, then device complexity is reduced, but harmful factors increase due to depressurization and leaks
Solution Approach 1:
The verification tab provides immediate visual feedback upon proper engagement, preventing operators from missing a secure connection. This simple feedback mechanism prevents harmful outcomes like depressurization and leaks without adding complex sensing or control systems
Solution Approach 2:
The verification tab is self-actuating and provides automatic confirmation of proper connection. The tab moves to a visible position automatically when the male connector is fully inserted, eliminating the need for additional sensors, indicators, or complex verification procedures
3Ease of operation
If conventional quick connectors lack installation verification, then ease of operation is improved, but reliability deteriorates due to failed connections
Solution Approach 1:
The verification tab provides immediate visual feedback upon proper engagement, preventing operators from missing a secure connection. This simple feedback mechanism prevents harmful outcomes like depressurization and leaks without adding complex sensing or control systems
Solution Approach 2:
The verification tab utilizes visual indication (effectively a form of color/visibility change) to communicate connection status. When properly engaged, the tab becomes visible, providing an intuitive and immediate signal to the operator that the connection is secure
Data Source
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AI summary
A quick connector assembly is provided, and comprises a housing (22) defining a fluid passageway(28) extending along an axis at an open end, a retainer ring (30) disposed in the open end and defining a slot (36), a retainer clip (32) secured to the housing (22) and at least partially disposed within the fluid passageway (28) at the open end (44), and a verification tab (34) disposed within the slot (36). The tab (34) is slideably displaceable along the slot (36) between a negative position, where the tab (34) is completely disposed within the housing (22), and a positive position (40), where a portion of the tab (34) is visibly disposed above an exterior surface (24) of the housing (22).