Compact Connector with Bayonet Cable Fixing

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Solution Overview

Problem

Existing cable connectors are not compact enough for certain applications, as they require a significant center distance between cable fixing assemblies due to separate housings and partitions, limiting their miniaturization potential.

Innovation Solution

A connector design that allows cable fixing assemblies to be mounted partially within the same housing, with bayonet connections and snap-fastening mechanisms, enabling close placement of contacts and reducing the center distance between them, thus enabling a more compact housing configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If cable fixing assemblies are mounted in separate housings with partitions, then each assembly can be independently secured, but the center distance between assemblies becomes large and the overall connector size increases

Engineering Contradiction:
Improveconnector sizeVSAvoidconnection stability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent combines multiple cable fixing assemblies into a single common housing instead of using separate housings for each assembly. The housing contains multiple receiving spaces that can accommodate several cable fixing assemblies, allowing them to be mounted closer together while sharing common mounting structures and fastening mechanisms, thereby reducing the overall connector size.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cable fixing assemblies are nested within the common housing structure, with each assembly positioned in its own receiving space inside the housing. This nested arrangement allows multiple assemblies to be compactly organized within the single housing volume, reducing the center distance between assemblies compared to separate housing configurations.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Area of stationary object

If multiple cables are fixed to the rear side of the housing through separate openings, then each cable can be independently attached, but the housing must be larger to accommodate multiple openings and maintain structural integrity

Engineering Contradiction:
Improvehousing areaVSAvoidcable attachment convenience
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

The patent merges multiple cable attachment functions into a single common housing structure. Instead of requiring separate housings or widely spaced openings, the housing provides multiple receiving spaces with shared mounting structures, allowing multiple cables to be attached through a more compact rear face area while maintaining independent attachment capability for each cable.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If cable fixing assemblies are placed close together, then the connector becomes more compact, but the risk of interference between adjacent assemblies increases

Engineering Contradiction:
Improveconnector sizeVSAvoidassembly interference
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The housing is segmented into multiple receiving spaces, each designed to accommodate a specific cable fixing assembly. These receiving spaces provide physical separation and defined boundaries for each assembly, preventing interference between adjacent assemblies even when they are positioned close together in the compact housing structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each receiving space within the housing is specifically designed with local structural features tailored to its intended cable fixing assembly. This localized optimization ensures that each assembly has adequate clearance and proper mounting characteristics specific to its position, reducing interference while maintaining overall compactness.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3407431B1Compact connector
Publication Date: 2021.11.10 AXON CABLE SA
  • EP3407431B1 patent drawingFigure 1~2
  • EP3407431B1 patent drawingFigure 3A~3C
  • EP3407431B1 patent drawingFigure 4~6

AI summary

A connector (10) comprising a housing (20) and at least two cable attachment assemblies (30) for securing cables to the connector. The housing (20) has an internal recess (26) opening into a rear face (25) of the housing. Each of the two cable attachment assemblies has a contact (32) and a sleeve (36), said contact (32) being configured to be attached to one end of a cable (40). The connector has, for each of the cable attachment assemblies (30), a bayonet fitting for mounting the cable attachment assembly (30) at least partially into the internal recess of the housing. Advantageously, the housing and the cable attachment assemblies are configured so that, during assembly, the cable attachment assemblies are inserted through the same opening in the housing.