Cable Connection Clamp with Movable Contact for Easy Conductor Insertion

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Solution Overview

Problem

Existing cable connection devices require complex mechanisms or high spring forces to create a free space for inserting or removing electrical conductors, especially when dealing with less stiff cores without ferrules, and often necessitate multiple hands for operation.

Innovation Solution

The contact portion and clamping element are designed to be movable relative to each other, allowing for a simple translational movement using a locking mechanism, such as a cam gear, to easily switch between clamping and actuated positions, reducing the need for high spring forces and simplifying the operation to a single-hand process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a clamping spring with high spring force is used to secure the conductor, then the connection reliability is improved, but the difficulty of insertion for less stiff cores increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidinsertion difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The contact portion is designed to be movable relative to the clamping element, allowing the system to dynamically switch between a closed position (for secure connection) and an open position (for easy insertion). This dynamic configuration resolves the contradiction by enabling both high reliability during operation and ease of insertion during installation.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If a complex mechanism with multiple components is used to create free space for conductor insertion, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improveease of insertionVSAvoidmechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The movement of the contact portion is coupled to the clamping element through a locking mechanism, merging the functions of contact pressure application and position control into a single integrated system. This reduces the number of separate components needed while maintaining ease of operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The locking mechanism automatically maintains the contact portion in the closed position without requiring additional actuators or complex control systems. The system self-regulates to provide both secure connection and easy insertion functionality.

Inventive Principle:
Principle #25Self-service

3Device complexity

If the contact portion is fixed relative to the clamping element, then the device complexity is reduced, but the ease of operation for inserting less stiff cores deteriorates

Engineering Contradiction:
Improvestructure simplicityVSAvoidinsertion ease
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The contact portion is designed to be movable relative to the clamping element, allowing the system to dynamically switch between a closed position (for secure connection) and an open position (for easy insertion). This dynamic configuration resolves the contradiction by enabling both high reliability during operation and ease of insertion during installation.

Inventive Principle:
Principle #15Dynamics

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 design enables easy and efficient insertion and removal of electrical conductors, even with less stiff cores, by minimizing the required force and maintaining a secure connection without additional load on the clamping element, thus simplifying the construction and reducing the number of components.

Implementation Method 1

a cam gear, to easily switch between clamping and actuated positions

Methodology Applied
Scientific EffectCam mechanism: Cam

Implementation Method 2

designed to be movable relative to each other, allowing for a simple translational movement using a locking mechanism

Methodology Applied
Scientific EffectMechanical locking: Mechanical Fastener

Data Source

PatentUS20260088527A1Cable connection device
Publication Date: 2026.03.26 HARTING ELECTRIC STIFTUNG & CO KG
  • US20260088527A1 patent drawing
  • US20260088527A1 patent drawing
  • US20260088527A1 patent drawing

AI summary

A cable connection device comprising at least one contact support having a busbar with a contact portion and having a clamping element with a clamping arm acting upon the contact portion, wherein the contact portion of the busbar can be moved in relation to the clamping element on the contact support.