Interlocking Connector Modules with Integrated Camshaft Locking

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Solution Overview

Problem

Existing industrial connector systems are mechanically complex and costly, with external locking devices prone to damage and lacking electronic control, which complicates secure and reversible locking mechanisms.

Innovation Solution

A system of reversibly interlockable connector modules featuring a camshaft with rotating cams and balls for secure locking, integrated within the connector modules, allowing for electronic control via buttons and interfaces for signal exchange, enabling cost-effective and mechanically stable connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If external locking devices are used on connector housings, then locking function is achieved, but they are easily damaged and mechanically complex

Engineering Contradiction:
Improvelocking device durabilityVSAvoidlocking mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking device is merged with the connector module itself rather than being separate external components. The camshaft mechanism is integrated into the connector module housing, combining the locking function with the connector structure to reduce overall complexity and improve durability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking mechanism is nested within the connector module housing. The camshaft and balls are contained inside the connector module, with the camshaft rotating within the housing and balls moving between the pin and receptacle, creating a compact nested arrangement that protects internal components.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Extent of automation

If traditional mechanical locking devices are used, then locking function is achieved, but they cannot be electronically controlled and are expensive to manufacture

Engineering Contradiction:
Improveelectronic control capabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Extent of automationVSEase of manufacture

Solution Approach 1:

The patent replaces purely mechanical locking devices with a hybrid system that uses an electric motor to drive the camshaft. This substitution enables electronic control of the locking mechanism while maintaining mechanical locking functionality, and the modular design reduces manufacturing complexity.

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

Solution Approach 2:

The connector module serves multiple functions: it provides electrical connection through contacts, mechanical locking through the camshaft and balls, and electronic control through the motor and interface. This multi-functionality consolidates several components into one modular unit, reducing overall system complexity and manufacturing cost.

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

3Ease of manufacture

If simple locking mechanisms are used, then manufacturing cost is reduced, but mechanical stability and security are compromised

Engineering Contradiction:
Improvemanufacturing costVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The patent uses spherical balls as the locking elements that interact with the camshaft. The spherical shape allows for smooth engagement and disengagement while providing reliable mechanical interlocking. The camshaft's rounded cam surface works with the spherical balls to create a stable locking mechanism that is simple yet effective.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 solution provides a simple, mechanically stable, and cost-effective locking mechanism that can be electronically controlled, ensuring secure and reversible connections between connector modules, protecting them within the housing and allowing for efficient data exchange.

Implementation Method 1

A camshaft (10) is arranged in the first connector module (2), whose axis of rotation (11) runs parallel to the insertion direction of the first connector module (2)

Methodology Applied
Scientific EffectCam mechanism: Cam

Implementation Method 2

At the end furthest from the journal, the camshaft is connected to an electric motor (12), which can be used to set the camshaft (10) into a rotational movement

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentEP3669428B1Interlocking connector modules
Publication Date: 2022.03.02 HARTING ELECTRIC GMBH & CO KG
  • EP3669428B1 patent drawingFigure 1~3

AI summary

The invention relates to a system (1) consisting of a first plug module (2) and a second plug module (3), which can be plugged together, wherein the first plug module (2) has a locking means, whereby the plug modules (2, 3) can be reversely locked to each other. Said system can be arranged within the housings of industrial plugs and is thus better protected from mechanical loads.