Connector CPA Circuit Detection for Reliable Mating Confirmation

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Solution Overview

Problem

Existing connector arrangements with RFID-enabled CPA members face signal leakage issues due to covered RFID tags, which can lead to inaccurate mating confirmation and potential accidental unmating.

Innovation Solution

A connector arrangement with a CPA member and a detection device featuring an electric circuit and spring contact, where the resilient member deflects to connect or disconnect the circuit, indicating the CPA member's state change from open to closed, thus confirming proper mating and preventing accidental unmating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If an RFID tag is used to detect CPA member state, then mating confirmation capability is improved, but signal leakage occurs leading to unreliable detection

Engineering Contradiction:
Improvemating confirmation accuracyVSAvoidsignal stability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent replaces the RFID electromagnetic detection system with a mechanical spring contact system. The spring contact physically connects or disconnects based on CPA member position, eliminating signal leakage issues while reliably indicating mating state through electrical circuit connection/disconnection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The spring contact acts as an intermediary mechanical element that translates CPA member position into electrical circuit state. It physically bridges the circuit when CPA is closed and breaks it when open, providing reliable mechanical-electrical transduction without electromagnetic interference.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a spring contact with resilient member is used to switch the electric circuit, then reliable state detection is improved, but device complexity increases

Engineering Contradiction:
Improvestate detection reliabilityVSAvoiddetection device structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The spring contact serves multiple functions simultaneously: it acts as a mechanical switch, provides electrical connection, indicates CPA member state, and enables circuit switching. This multi-functionality reduces the need for separate components, thereby limiting complexity increase despite improved reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution effectively addresses signal leakage by enabling reliable confirmation of connector mating through state changes in the electric circuit, ensuring secure connections and preventing accidental disconnection.

Implementation Method 1

the resilient member is deflected by at least one of the connector and the mating connector when the CPA member is moved from the open state to the closed state

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20240322491A1Connector arrangement
Publication Date: 2024.09.26 YAZAKI EUROPE LTD
  • US20240322491A1 patent drawing
  • US20240322491A1 patent drawing
  • US20240322491A1 patent drawing

AI summary

A connector arrangement comprising a connector and a corresponding mating connector configured to be mated with the connector, a CPA member configured to be movable between an open state and a closed state, wherein in the closed state the CPA member is adapted to confirm a proper mating of the connector and the mating connector and prevents the connector and the mating connector from accidental unmating, and a detection device for detecting the closed state of the CPA member, the detection device comprising an electric circuit.