Insulation Displacement Terminal With Integrated Spring Release

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Solution Overview

Problem

Existing conductor connection terminals are not optimized for compact design and efficient automatic connection of insulated electrical conductors without prior stripping, often requiring multiple components and complex actuation mechanisms.

Innovation Solution

A conductor connection terminal with an insulation displacement connector featuring a pressure spring, holding device, and release element, allowing for a compact design and automatic connection of insulated conductors by pressing into a cutting gap with a spring force, facilitated by a release element actuated in alignment with the conductor insertion direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional conductor connection terminal with spring-loaded clamping connection is used, then reliable electrical contact is achieved, but the device requires multiple components and complex actuation mechanisms, increasing device complexity

Engineering Contradiction:
Improveelectrical contact reliabilityVSAvoidcomponent quantity and actuation mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pressure spring and release element are merged into a single integrated component. The release element forms part of the pressure spring structure, eliminating the need for separate release mechanism components. This integration reduces the total component count while maintaining the spring-loaded clamping function for reliable electrical contact.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated pressure spring-release element component performs multiple functions: it provides the spring force for clamping contact, enables release actuation through its structural design, and serves as both the pressing and releasing mechanism. This multi-functionality reduces device complexity while maintaining reliability.

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

2Productivity

If an insulation displacement connector with automatic release technology is implemented, then connection efficiency is improved, but the device requires additional components and mechanisms, increasing manufacturing cost

Engineering Contradiction:
Improveconnection speed and automationVSAvoidmanufacturing cost and component count
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The release element is integrated into the pressure spring structure as a unified component. This merging eliminates the need for separate release mechanism parts, reducing assembly steps and manufacturing complexity while enabling automatic release functionality for improved connection productivity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The conductor itself acts as the release actuator by pressing against the release element during insertion. This self-service mechanism eliminates the need for external release actuators or complex control systems, reducing manufacturing cost while achieving automatic release and high connection efficiency.

Inventive Principle:
Principle #25Self-service

3Force

If the release element is actuated in alignment with the conductor insertion direction, then the actuation force is optimized, but the release element geometry becomes more constrained

Engineering Contradiction:
Improveactuation force efficiencyVSAvoidrelease element geometry flexibility
Core Design Contradiction:
ForceVSShape

Solution Approach 1:

The release element is merged with the pressure spring structure, creating an integrated component where the release feature is formed as part of the spring geometry. This integration allows the release element to maintain alignment with the insertion direction for optimized force transmission while the combined structure provides the necessary geometric flexibility.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated pressure spring-release element uses material elasticity and spring geometry parameters to accommodate the alignment constraint. By adjusting spring constants, coil dimensions, and release element geometry within the integrated structure, the design achieves both force optimization and geometric adaptability.

Inventive Principle:
Principle #35Parameter changes

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 a compact, cost-effective, and efficient connection of insulated conductors with direct electrical contact, reducing component complexity and enabling automatic connection without prior stripping, while maintaining robust cutting and contact pressure.

Implementation Method 1

at least one pressure spring which is designed to press the electrical conductor into the cutting gap by means of a spring force

Methodology Applied
Scientific EffectSpring force: Spring

Implementation Method 2

pressing the electrical conductor with its insulation sheath into the cutting gap through the cutting edges, which cut open the insulation and establish electrical contact with the inner conductor

Methodology Applied
Scientific EffectMechanical cutting: Fracture Mechanics

Data Source

PatentUS20260018808A1Conductor connection terminal for connecting an electrical conductor
Publication Date: 2026.01.15 WAGO VERW GMBH
  • US20260018808A1 patent drawing
  • US20260018808A1 patent drawing

AI summary

A conductor connection terminal is provided for connecting an electrical conductor which is to be inserted into the conductor connection terminal in a conductor insertion direction. At least one insulation displacement connector is provided with opposing cutting edges, between which a cutting gap is formed. At least one pressure spring is designed to press the electrical conductor into the cutting gap via a spring force. At least one holding device is designed to hold the pressure spring in a pretensioned state in which a spring force is present for pressing the electrical conductor into the cutting gap. At least one release element, by actuation of which the pressure spring can be released from the holding device so that the electrical conductor can be pressed into the cutting gap by its spring force.