Quick Connector Assembly With Redundant Latching Assurance
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Solution Overview
Problem
Existing quick connector assemblies for fluid lines lack a reliable and redundant latching mechanism that provides a clear indication of secure attachment, risking unintentional separation and uncertainty in connection status.
Innovation Solution
A quick connector assembly featuring a primary and secondary latching mechanism with a blocking member and biasing elements, providing both physical and visual confirmation of secure engagement, ensuring the male member is securely retained within the female connector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single latching mechanism is used in quick connector assemblies, then the device complexity is reduced, but the reliability of the connection is compromised due to risk of unintentional separation
Solution Approach 1:
The latching mechanism is divided into two independent retaining members (primary and secondary latches) that operate separately but work together to secure the male member. Each latch can be engaged or disengaged independently, providing redundant security without requiring a completely complex integrated system.
Solution Approach 2:
The blocking member is positioned to prevent engagement of the secondary retaining member until the primary retaining member is already engaged. This preliminary action ensures that the primary latch is securely in place before allowing the secondary latch to engage, providing a staged approach to securing the connection.
2Reliability
If a redundant latching mechanism is implemented, then the reliability of fluid connection is improved, but the device complexity increases with additional components
Solution Approach 1:
The blocking member combines multiple functions: it blocks the transverse opening to prevent secondary latch engagement, and it can be moved by the male member during insertion to allow secondary latch engagement. This merging of functions reduces the need for separate control mechanisms.
Solution Approach 2:
The male member itself serves to move the blocking member from the blocked position to the unblocked position during the insertion process. This self-service approach eliminates the need for an external actuator or complex control system to manage the blocking function.
3Ease of operation
If no visual indication mechanism is provided, then the device complexity is minimized, but the ease of operation is reduced due to uncertainty in connection status
Solution Approach 1:
The retaining members are configured to provide visual indication through their positional states. When engaged, the retainers assume positions that can be visually distinguished from the disengaged state, allowing users to verify connection status without additional complex indication systems.
Solution Approach 2:
The latching mechanism itself provides the indication function through its engaged/disengaged positions. The physical state of the retainers and blocking member serves as the indication mechanism, eliminating the need for separate visual display components.
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
The assembly ensures a redundant and secure fluid connection with visual and tactile indications, preventing unintentional separation and confirming secure attachment, thus enhancing the reliability of fluid line connections.
Implementation Method 1
a biasing member, the primary retaining member slidably disposed within the transverse opening for movement between an engaged position and a disengaged position
Data Source
AI summary
Provided is a quick connector assembly for joining a male member and a female connector member together to secure fluid communication in a fluid line system. The quick connector assembly includes a primary latch and a secondary latch configured to toggle between engaged and disengaged positions and to allow for a visual, audible, and/or tactile indication as to the status of a secure attachment between a male member and a female connector member.