Connector Lock Indicator for Scannable CPA State Detection

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Solution Overview

Problem

Current Connector Position Assurance (CPA) systems lack reliable automation in detecting the locked state of connectors, particularly under mechanical influences like vibration or temperature changes, necessitating a scannable element for secure locking verification.

Innovation Solution

A security device with a display element and identification feature that changes contrast, allowing reliable detection of the locked state through scanning, where the identification feature is recognizable only in the locked position, ensuring secure and automated recognition of connector status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a scannable element is added to detect locking state, then detection reliability is improved, but device complexity increases

Engineering Contradiction:

Improvedetection reliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the locking element and the scannable recognition feature into a single integrated component. The recognition feature is directly formed on or with the locking element, eliminating the need for separate detection devices and reducing overall system complexity while maintaining reliable detection capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The locking element serves dual functions: it performs the mechanical locking action and simultaneously provides the recognition feature for scanning detection. This multi-functionality reduces the number of components needed and simplifies the device structure while ensuring reliable locking state detection.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If the recognition feature is always visible, then detection ease is improved, but security against false detection worsens

Engineering Contradiction:

Improvedetection easeVSAvoiddetection accuracy

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The recognition feature's visibility is made dynamic rather than static. It is positioned such that it is only visible and scannable when the locking element is in the correct locked position, automatically preventing false detections when the connector is improperly connected or in transit.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The recognition feature is pre-positioned on the locking element during manufacturing, ensuring it will only be in the correct scannable position when the locking mechanism is properly engaged. This preliminary positioning prevents false detections before the actual locking action occurs.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP4481953A1Securing device with detection feature as part of a second detection feature

Publication Date: 2024.12.25 LISA DRÄXLMAIER GMBH

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AI summary

The disclosure relates to a locking device (100) for securing a locking of a locking element (110), wherein the locking device (100) comprises: a locking element (110) that is movable from a first locking position (111) to a second locking position (112), wherein the locking element (110) effects a locking in the second locking position (112); an indicator element (120) with an identification feature (200) for displaying information; wherein in the first locking position (111) of the locking element (110) the identification feature (200) is part of a second identification feature (212), such that the identification feature (200) is not separately identifiable; and wherein in the second locking position (112) of the locking element (110) the recognition feature (200) is not part of the second recognition feature (212), so that the recognition feature (200) is separately recognizable.