Conductor Terminal Mounting Wall Stability

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Solution Overview

Problem

Existing conductor connection terminals with clamping springs and busbar pieces lack stability and stiffness, leading to ineffective clamping and opening of electrical conductors.

Innovation Solution

The busbar piece features a contact wall that supports the vertical section of the contact leg, forming a self-supporting system with the clamping spring, where the vertical section is aligned perpendicularly to the main direction of the busbar piece, and a transverse web engages under the busbar piece, providing stability and stiffness by distributing forces between the clamping leg and the busbar piece.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the clamping spring is mounted on the busbar section without additional support structures, then the device complexity is reduced, but the stability and stiffness of the clamping mechanism deteriorates

Engineering Contradiction:
Improvestructure complexityVSAvoidclamping spring stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The busbar section is segmented into functional zones: a mounting region with a mounting wall for supporting the clamping spring, and a clamping region with clamping sections. This segmentation allows the mounting wall to provide stable support while keeping the overall structure integrated and simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The clamping spring is nested within the recess of the mounting wall, which provides support from multiple sides. The mounting wall surrounds and supports the clamping spring, creating a stable configuration without requiring external support structures.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Strength

If the clamping spring is designed with extended support structures, then the stiffness and stability improve, but the device complexity increases

Engineering Contradiction:
Improveclamping mechanism stiffnessVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The mounting wall is merged with the busbar section to form an integrated structure. The mounting wall is formed as an integral part of the busbar section, combining the support function with the existing busbar structure, thereby increasing stiffness without adding separate support components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The mounting wall serves multiple functions: it provides support for the clamping spring, defines the recess for positioning, and integrates with the busbar section structure. This multi-functionality increases stiffness while avoiding additional dedicated support structures.

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

3Device complexity

If the clamping spring is supported only at one point, then the structure remains simple, but the clamping spring tilts and loses stability during operation

Engineering Contradiction:
Improvestructure complexityVSAvoidclamping spring positioning
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The clamping spring is nested within the recess of the mounting wall, which provides support from multiple sides including the back and sides. This nested configuration prevents tilting by distributing support forces across multiple contact points while maintaining structural simplicity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The mounting wall acts as an intermediary structure between the busbar section and the clamping spring. It provides a stable mounting surface and recess that positions the clamping spring correctly, preventing tilting without requiring complex external support mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Stability of the object's composition

If additional support structures are added to stabilize the clamping spring, then the stability improves, but the manufacturing complexity increases

Engineering Contradiction:
Improveclamping spring stabilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The mounting wall is merged with the busbar section to form an integral structure that can be manufactured as a single piece. This integration provides stable support for the clamping spring while maintaining manufacturing simplicity, as no separate support components need to be assembled.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The busbar section is segmented to include a mounting wall with a recess, creating a built-in support structure. This segmentation allows the support function to be integrated into the manufacturing process of the busbar section itself, avoiding the need for separate support components and assembly steps.

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

This configuration ensures a stable and stiff clamping mechanism that effectively absorbs forces during conductor clamping and opening, preventing tilting of the clamping spring and maintaining a secure connection.

Implementation Method 1

a clamping spring (3), which has a clamping leg (13) oriented towards a busbar section (2), forming a clamping point (14, 15) for connecting an electrical conductor (36)

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3787121B1Conductor connection terminal
Publication Date: 2023.04.05 WAGO VERW GMBH
  • EP3787121B1 patent drawingFigure 1
  • EP3787121B1 patent drawingFigure 2
  • EP3787121B1 patent drawingFigure 3~4

AI summary

A conductor terminal (29) with a busbar section (2) and a clamping spring (3) is described. The clamping spring (3) has a clamping leg (13) oriented towards the busbar section (2) to form a clamping point for connecting an electrical conductor (36) between the clamping leg (13) and the busbar section (2), a spring arc (12) adjoining the clamping leg (13), and a contact leg (9) extending with a vertical section (10) transversely to the busbar section (2). The vertical section (10) of the contact leg (9) has a recess (19) with edges that encompass the busbar section (2).The busbar section (2) has a mounting wall (28) which is arranged adjacent to the wall surface of the vertical section (10) of the mounting leg (9) extending transversely to the busbar section (2) and which is located on the side of the vertical section (10) facing away from the clamping leg (13), and is designed to support the vertical section (10) of the mounting leg (9) with this wall surface facing away from the clamping leg (13) on the mounting wall (28).