Connector Housing Snap-In Assembly for Tight Spaces

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Solution Overview

Problem

In tight installation spaces, it is difficult to attach electrical connector housings directly to sensors or actuators due to the need for a large installation space for screwing, resulting in longer cable runs.

Innovation Solution

A plug housing with connecting means featuring external undercuts and lateral stop surfaces for a detachable snap-in connection with flexible arms, allowing tool-free attachment to a clamping element, such as a pipe clip, providing a stable and easy-to-assemble snap connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connector housings are screwed to carrier elements, then a secure connection is achieved, but a large installation space is required and longer cable runs are necessary

Engineering Contradiction:
Improveconnection securityVSAvoidinstallation space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent replaces the screwing mechanism with a snap-in connection mechanism. The connector housing features connecting means with undercuts that engage with flexible arms on the pipe clip, eliminating the need for threaded fasteners and large installation spaces while maintaining secure attachment

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

Solution Approach 2:

The connecting means are divided into distinct functional elements: undercuts for latching engagement and lateral stop surfaces for positioning. This segmentation allows the connection to be achieved through simple insertion without requiring complex assembly tools or space

Inventive Principle:
Principle #1Segmentation

2Length of moving object

If connector housings are attached in immediate vicinity of sensors or actuators, then cable runs are shortened, but tool-free attachment becomes difficult in tight spaces

Engineering Contradiction:
Improvecable run lengthVSAvoidattachment ease
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The screwing operation is replaced with a simple snap-in action where the housing is pushed onto the pipe clip until the undercuts engage with the flexible arms. This eliminates the need for screwdrivers or other tools, making attachment feasible in tight spaces near sensors or actuators

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

Solution Approach 2:

The flexible arms automatically engage with the undercuts when the housing is inserted, creating a self-latching connection that secures itself without requiring additional fastening operations or tools

Inventive Principle:
Principle #25Self-service

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, tool-free attachment of electrical connector housings in tight spaces, reducing cable lengths and simplifying installation processes while maintaining a secure and rigid connection.

Implementation Method 1

the connecting means are designed at least in the shape of a segment of a circle in cross-section along a clamping region, into which the clamping element engages in the plugged-in state

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3164914B1Housing and assembly
Publication Date: 2018.12.26 EATON INTELLIGENT POWER LTD
  • EP3164914B1 patent drawingFigure 1~2
  • EP3164914B1 patent drawingFigure 3~4
  • EP3164914B1 patent drawingFigure 5~6

AI summary

The invention relates to a housing (1, 1') for an electrical connector, characterized in that the housing (1, 1') comprises connecting means (10) for reversibly receiving flexible arms (5) of a clamping element (3) in a locking manner. The invention further relates to an assembly, comprising a housing (1, 1') according to one of the preceding claims and a clamping element (3) having at least two flexible arms (5), between which a receiving space (6) is defined, in which the connecting means (10) of the housing (1, 1') are reversibly held in a locking manner.