Quick Connector Latch Verification Using a Scannable Code

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Solution Overview

Problem

Conventional quick connectors often fail to ensure a secure connection, leading to leaks due to incomplete locking, as they lack a reliable method to verify proper assembly.

Innovation Solution

A quick connector design that incorporates a scannable code visible only when the latch member is fully engaged, allowing verification through a scanning device that the pipe is properly installed and locked, using partial codes aligned or uncovered as the latch moves to the latched position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional quick connectors are used without verification mechanism, then the device complexity is low, but the reliability of connection is poor leading to leaks

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A scannable code (barcode or QR code) is introduced as an intermediary verification element. The code is positioned on the connector body and only becomes accessible/scannable when the latch member is fully engaged with the pipe, providing indirect verification of proper connection without adding complex sensors or detectors

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connector system performs self-verification through the scannable code mechanism. The proper engagement of the latch member automatically reveals the scannable code, allowing the system to self-confirm correct assembly without requiring external verification devices or complex sensing mechanisms

Inventive Principle:
Principle #25Self-service

2Reliability

If a scannable code verification system is added, then the reliability of connection verification is improved, but the device complexity increases

Engineering Contradiction:
Improveassembly verification reliabilityVSAvoidconnector structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The scannable code serves as a simple intermediary that translates the mechanical state of latch engagement into a machine-readable verification signal, adding minimal complexity while providing reliable verification

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

Instead of using complex physical verification mechanisms, a visual copy (scannable code pattern) is used to represent the connection state. The code can be scanned and verified digitally without requiring physical measurement or complex sensing of the latch position

Inventive Principle:
Principle #26Copying

3Ease of operation

If the latch member is made movable between positions, then the ease of operation is improved, but the difficulty of detecting proper connection increases

Engineering Contradiction:
Improvepipe installation easeVSAvoidconnection status detection difficulty
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The scannable code changes its accessibility state (visible/hidden) based on the latch member position, creating a visual indicator that clearly distinguishes between connected and disconnected states without requiring complex sensors

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The scannable code acts as an intermediary indicator that translates the mechanical position of the latch member into a easily detectable visual signal, making connection status detection simple through scanning rather than requiring measurement of mechanical parameters

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11698157B2Quick connector latch verification utilizing a scannable code
Publication Date: 2023.07.11 COOPER STANDARD AUTOMOTIVE INC
  • US11698157B2 patent drawing
  • US11698157B2 patent drawing
  • US11698157B2 patent drawing

AI summary

This disclosure relates to a quick connector adapted to display a code that verifies that a latch member is engaged to retain an installed pipe to the quick connector. The quick connector comprises a connector body having a receiving portion surrounding an internal passage, the internal passage arranged to receive the pipe therein. A latch member retained on the receiving portion is arranged to be movable between a pipe insertion position and a latched position. In the pipe insertion position, the latch member allows the pipe to be inserted into the internal passage. A code readable by a scanning device becomes readable when the latch member is moved to the latched position verifying that the pipe is installed and latched in the connector body.