Panel-Mount Electrical Connector Snap-Fit for Fast Secure Assembly

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Solution Overview

Problem

Existing electrical connector systems for aircraft interiors are time-consuming and require multiple people to assemble, with loose parts that can be lost and potential damage to the panel during assembly.

Innovation Solution

A snap-fit connection mechanism using flexible hooking means and a blocking element, eliminating the need for external tools and loose parts, allowing for a secure and fast assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional screwing and nut attachment is used, then secure connection is achieved, but assembly time increases and multiple persons are required

Engineering Contradiction:
Improveconnection securityVSAvoidassembly speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the traditional mechanical screwing system with a snap-fit connection system. The attachment device features a hook that engages with a latch mechanism, eliminating the need for screws, nuts, and external tightening tools. This mechanical substitution maintains connection security while dramatically reducing assembly time and personnel requirements.

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

Solution Approach 2:

The attachment device is designed to be self-assembling through a push-through action. The flexible hook automatically engages with the latch when the connector is inserted through the panel, and the connection is self-securing without requiring external tools or multiple persons to apply and control screwing forces.

Inventive Principle:
Principle #25Self-service

2Reliability

If traditional screwing and nut attachment is used, then connection is secured, but loose parts can be lost during assembly

Engineering Contradiction:
Improveconnection securityVSAvoidnumber of loose parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the attachment device with the connector housing into a single integrated component. The hook, latch, and spring mechanism are all built-in features of the attachment device itself, eliminating loose parts like separate washers, nuts, and clips that could be lost during assembly.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The attachment device is designed to be self-contained and self-securing. All necessary components for creating a secure connection are integrated into the single attachment device, which automatically engages with the panel without requiring external loose parts.

Inventive Principle:
Principle #25Self-service

3Reliability

If traditional screwing and nut attachment is used, then connection is secured, but panel coating can be damaged

Engineering Contradiction:
Improveconnection securityVSAvoidpanel coating damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the intrusive mechanical screwing system with a snap-fit connection system. The attachment device passes through pre-defined holes and engages behind the panel surface, eliminating the need to screw into or against the panel coating, thus preventing coating damage while maintaining secure connection.

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

4Adaptability or versatility

If flexible hooking means is made movable, then adaptability to different panel thicknesses is achieved, but device complexity increases

Engineering Contradiction:
Improvepanel thickness compatibilityVSAvoidattachment device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent incorporates a spring mechanism that provides elastic flexibility to the attachment device. The spring allows the hook and latch to dynamically adjust to different panel thicknesses within a range, accommodating variations without requiring multiple fixed-position designs or complex adjustment mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring mechanism changes the physical state of the attachment device from rigid to elastic, allowing it to adapt to different panel thicknesses. The elastic deformation of the spring enables the hook to engage at varying depths behind the panel surface, providing adaptability without increasing overall device complexity.

Inventive Principle:
Principle #35Parameter changes

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 snap-fit connection enables a faster, more reliable assembly without the need for additional tools or personnel, ensuring secure attachment and preventing unwanted disconnection.

Implementation Method 1

a spring configured to impose a restoring force acting on the flexible hooking means in the direction from the extended position to the retracted position

Methodology Applied
Scientific EffectElastic restoring force: Elasticity

Implementation Method 2

The flexible hooking means can move from a retracted position, in which the flexible hooking means can be passed through a through hole in a panel, to an extended position, in which the flexible hooking means engages behind the panel to realise the snap-fit connection

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3893336B1Electrical connector for connector system
Publication Date: 2026.03.04 CONNECTEUR ELECTRIQUES DEUT
  • EP3893336B1 patent drawingFigure 1
  • EP3893336B1 patent drawingFigure 2a
  • EP3893336B1 patent drawingFigure 2b

AI summary

The invention relates to an electrical connector (102, 202) comprising a connector body (112) and a connector attachment device (114, 214) for attaching the connector body (112) to a panel (104), characterised in that the connector attachment device (114, 214) is configured to realize a snap-fit connection with the panel (104) in a state in which the electrical connector (102) is attached to the panel (104). The invention also relates to an electrical connector (102, 202) mount to a panel (104), wherein the flexible hooking means (138) extends through a through hole (104d) of the panel (104) realizing a snap-fit connection between the electrical connector (102, 202) and the panel (104). The invention also relates to a system (100) comprising an electrical connector (102, 202) mount to a main side (104a) of a panel (104) and a mating second electricalconnector (106) positioned on the opposite main side (104b) of the panel (104), wherein the mating second electrical connector (106) comprises a mating attachment means configured to realize a snap-fit connection with the second attachment means (134) of the electrical receptacle connector (102, 202).