Connector Locking Mechanism with Pivoting Jaws for Extraction

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Solution Overview

Problem

Current electrical connector assembly methods for aircraft instrument panels are cumbersome, requiring high precision and significant mechanical force, often done blind and with complex setups, and lack efficient means for locking and unlocking connectors without risking damage to the electrical strand.

Innovation Solution

A mechanical structure with two mobile jaws, each on a pivot, facilitating translational movement of the connector, allowing for easy connection and extraction by adjusting the distance between jaws to match the connector's shoulder, and incorporating a locking mechanism to manage extraction force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If separate electrical connection and mechanical mounting are performed, then ease of operation is improved, but device complexity increases due to requiring sufficiently long electrical strand and external force application means

Engineering Contradiction:
Improveease of connectionVSAvoidcomplexity of mounting means
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines electrical connection and mechanical mounting operations into a single integrated process. The connector assembly includes both electrical contacts and mechanical retention features (shoulder, gripping surfaces) that allow simultaneous electrical and mechanical connection when the connector is inserted into the base, eliminating the need for separate mounting steps and long electrical strands.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector assembly is designed with multi-functionality, serving both electrical connection and mechanical retention purposes. The single component performs multiple functions: providing electrical contacts, providing a shoulder for mechanical retention, and providing gripping surfaces for extraction. This eliminates the need for separate specialized components for each function.

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

2Force

If significant traction force is applied to extract the connector, then extraction force is sufficient, but the electrical strand may be damaged

Engineering Contradiction:
Improveextraction forceVSAvoidrisk of damage to electrical strand
Core Design Contradiction:
ForceVSReliability

Solution Approach 1:

The patent extracts the mechanical retention function from the electrical strand by providing a separate dedicated retention mechanism. The connector assembly includes a shoulder and gripping surfaces that are specifically designed for mechanical retention and extraction, allowing force to be applied to these robust mechanical features rather than to the fragile electrical strand.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The connector assembly acts as an intermediary between the electrical strand and the extraction force. The mechanical features (shoulder, gripping surfaces) serve as intermediaries that transmit and distribute extraction force away from the electrical strand, protecting it from damage while still enabling sufficient extraction force to be applied.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If blind connection method is used, then mounting speed is improved, but manufacturing precision deteriorates due to inability to visually align connector

Engineering Contradiction:
Improvemounting speedVSAvoidalignment precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent incorporates preliminary alignment actions into the insertion process. The connector assembly includes mechanical guidance features such as a shoulder that engages with the base and gripping surfaces that guide the connector into proper alignment during insertion. These preliminary mechanical alignment actions ensure precise positioning before final connection is made.

Inventive Principle:
Principle #10Preliminary action

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

Enables secure, efficient, and force-reduced connection and extraction of electrical connectors, improving ease of use and reducing the risk of damage to the connector or electrical strand.

Implementation Method 1

each jaw is mounted on a pivot, the movement of the movable jaw being a rotational movement around said pivot

Methodology Applied
Scientific EffectRotational movement:

Implementation Method 2

The axis of the pivot being parallel to the determined direction, each jaw comprises two jaws, the upper part of the first jaw is in the form of an inclined disc

Methodology Applied
Scientific EffectMechanical advantage: Mechanical Advantage

Data Source

PatentEP3163686B1Device for locking and extracting an electric connector
Publication Date: 2018.09.19 THALES SA
  • EP3163686B1 patent drawingFigure 1~3
  • EP3163686B1 patent drawingFigure 4~6
  • EP3163686B1 patent drawingFigure 7~8

AI summary

The general field of the invention is that of locking and extraction devices (10) for an electrical connector (3) in an electronic housing (1), said electronic housing comprising the electrical socket (2) corresponding to said electrical connector, the connection and extraction of the electrical connector being carried out in a predetermined direction, parallel to the electrical contacts of the electrical connector. The connector according to the invention is mounted in a mechanical assembly comprising at least one shoulder (4). The electronic housing comprises a mechanical structure having at least one movable jaw (12, 13, 22, 23, 31, 33) arranged so as to grasp the shoulder of the connector and impart a translational movement to it in said predetermined direction, thus facilitating the connection or extraction of said electrical connector in its electrical socket.