Modular Cable Connector Assembly with Sonic Welding

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing multi-pin cable connectors are inefficient and inflexible due to overmolding, which limits customization and requires cutting cables for custom installations, introducing inefficiency and calculated loss.

Innovation Solution

The solution involves a cable connector assembly using first and second shell elements with strain relief features and a compression collar, allowing assembly without overmolding or adhesives, and sonic welding for secure connection, enabling customizable pin arrangements and easy installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If overmolding is used to create cable connectors, then mass production is achieved, but customization is limited and pin/wire positions cannot be changed

Engineering Contradiction:
Improvemass production efficiencyVSAvoidcustomization capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The cable connector is divided into separate modular components: individual cable positions are defined by separate guide elements rather than a monolithic overmolded structure. This segmentation allows each cable position to be independently configured and customized while maintaining mass production capabilities through standardized modular assembly.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If one end of the cable is cut off to expose individual wires for custom installation, then customization is enabled, but inefficiency and calculated loss are introduced

Engineering Contradiction:
Improvecustom installation capabilityVSAvoidinstallation efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The connector is pre-configured with guide elements and positioning features that define exact cable positions before installation. This preliminary preparation eliminates the need for post-installation customization or cable cutting, allowing direct installation of complete cable assemblies while maintaining full customization capability through pre-configured guide element arrangements.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If traditional cable connector assembly methods are used, then secure connection is achieved, but complex assembly processes and adhesives are required

Engineering Contradiction:
Improveconnection securityVSAvoidassembly process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The assembly process replaces chemical bonding (adhesives) and complex mechanical fastening systems with a simplified mechanical insertion system. Guide elements provide precise positioning and alignment through geometric constraints alone, allowing components to be assembled through straightforward insertion without requiring adhesives, fasteners, or complex assembly procedures while maintaining secure connections.

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

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

This approach provides a customizable, efficient, and reliable cable connector assembly that simplifies installation, reduces waste, and enhances holding ability under force, while avoiding electrical interference and crossover.

Implementation Method 1

the first and second shell elements are sonically welded together

Methodology Applied
Scientific EffectSonic welding: Ultrasonic Vibration

Data Source

PatentEP2760084B1Cable connector
Publication Date: 2017.08.16 ROCKWELL AUTOMATION TECH INC
  • EP2760084B1 patent drawingFigure 1
  • EP2760084B1 patent drawingFigure 2
  • EP2760084B1 patent drawingFigure 3

AI summary

A cable connector for receiving a cable and a connector block. The cable connector including a first shell element with a first strain relief holding feature, a first connector block receiving feature, and a recess; a second shell element with a second strain relief holding feature, a second connector block receiving feature, and a projection; and a strain relief element defining a cable aperture sized to receive the cable, a compression collar, and a wing portion. The projection is received within the recess. The first and second strain relief holding features cooperate to support and maintain the strain relief element. The first and second connector block receiving features cooperate to support and maintain the connector block. The wing portion of the strain relief element is arranged to increase a holding ability of the strain relief element when a twisting or axial force is applied to the cable,