Conductor Terminal Actuation With Captive Sliding Element

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Solution Overview

Problem

Existing conductor connection terminals lack a secure and efficient mechanism for actuating the clamping point, often requiring external tools and complicating assembly and accessibility.

Innovation Solution

A conductor connection terminal design featuring a captive actuating element with a projection that fits into an opening, allowing for a sliding or tilting motion to open and close the clamping point, guided by a spring element and a two-part insulating housing for secure assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a manual actuating element is integrated into the conductor terminal, then ease of operation is improved, but device complexity increases

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

Solution Approach 1:

The actuating element is integrated directly into the insulating housing, merging the actuation mechanism with the housing structure. The projection of the insulating housing is received in the opening of the actuating element, creating a unified component that reduces the number of separate parts while maintaining ease of operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The actuating element is displaceably mounted in the insulating housing, with the projection of the housing nested within the opening of the actuating element. This nested arrangement allows the actuating element to move independently while being contained within the housing structure, providing manual actuation capability without significantly increasing overall device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the actuating element is displaceably mounted in the insulating housing, then ease of operation is improved, but reliability deteriorates due to potential loss of the actuating element

Engineering Contradiction:
Improveease of operationVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The projection of the insulating housing is received in the opening of the actuating element, creating a nested relationship where the actuating element is captured by the housing structure. This prevents the actuating element from being accidentally removed while still allowing it to be displaceably mounted for manual actuation.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The actuating element is pre-mounted in the insulating housing during assembly, with the projection already positioned to receive the housing projection. This preliminary mounting action ensures the actuating element is securely in place before the terminal is put into service, preventing accidental loss while maintaining ease of operation.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the opening of the actuating element is designed to be sufficiently large, then ease of operation is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improveease of operationVSAvoidmanufacturing precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The opening of the actuating element is segmented into sides that are spaced apart, creating an intermediate space. This segmentation allows the opening to be sufficiently large for ease of operation while maintaining precise manufacturing through the defined geometric relationships between the spaced-apart sides and the projection they receive.

Inventive Principle:
Principle #1Segmentation

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

Facilitates easy and secure actuation of the clamping point without external tools, enhances assembly simplicity, and ensures the actuating element remains captive, improving user accessibility and terminal functionality.

Implementation Method 1

guided by a spring element

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4189780B1Conductor connection terminal
Publication Date: 2025.09.03 WAGO VERW GMBH
  • EP4189780B1 patent drawingFigure 1
  • EP4189780B1 patent drawingFigure 2
  • EP4189780B1 patent drawingFigure 3

AI summary

The invention relates to a conductor connection terminal (1) having: an insulating housing (2), wherein the insulating housing (2) comprises a conductor introduction opening (3) for introducing an electrical conductor in a conductor introduction direction (L); a busbar (4); and a clamping spring (5), wherein the clamping spring (5) comprises a clamping limb (5c) which, with the busbar (4), forms a clamping point (6) for the electrical conductor; and an actuating element (7), wherein the actuating element (7) is displaceably mounted in the insulating housing (2) and is designed for opening and/or closing the clamping point (6) and wherein the actuating element (7) comprises an opening (8) for receiving a projection (9) of the insulating housing (2).