Electrical Terminal Labeling Area Visibility

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Solution Overview

Problem

Existing electrical connection terminals require users to search for identification markings when opening or closing, as the actuating element pivots upwards, obscuring the label and making it difficult to assign the terminal correctly.

Innovation Solution

The electrical connection terminal features a labeling area on its outer surface, visible at all times, which remains uncovered by the actuating element, allowing easy identification and operation, even when the terminal is open or closed, and can be inscribed using inkjet printers or plotters without additional components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the actuating element is pivoted upwards to open the terminal, then the terminal can be opened for conductor insertion, but the labeling area becomes obscured and invisible to the user

Engineering Contradiction:
Improveterminal opening operationVSAvoidlabeling area visibility
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The labeling area is positioned on a surface that remains in the user's field of vision regardless of the actuating element's pivot position. By relocating the labeling area from the actuating element to a fixed position on the housing, the information remains accessible in a different spatial dimension while the actuating element moves.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The housing surface is segmented into distinct functional areas: the actuating element for operation and the labeling area for identification. This segmentation allows the labeling area to remain stationary and visible while the actuating element moves independently to open or close the terminal.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If the actuating element is designed to cover the labeling area when open, then the terminal structure is compact, but the user cannot read the label during operation

Engineering Contradiction:
Improveterminal structure compactnessVSAvoidlabel reading during operation
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The labeling function is extracted from the actuating element and placed on a separate, fixed surface on the housing. This extraction allows the actuating element to move freely for operation while the label remains in a fixed, visible position, resolving the conflict between compact structure and label readability.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If the labeling area is placed on the actuating element, then the label is close to the operating mechanism, but the label becomes invisible when the terminal is opened

Engineering Contradiction:
Improvelabel placement simplicityVSAvoidlabel visibility in open state
Core Design Contradiction:
Ease of manufactureVSLoss of information

Solution Approach 1:

The labeling area is positioned on a fixed surface on the housing that remains in the user's field of vision regardless of the actuating element's position. This spatial repositioning ensures the label is always visible while maintaining ease of manufacture by using the existing housing surface.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 users to easily recognize and operate the terminal without needing to search for markings, ensuring quick and accurate assignment of conductors, reducing time and effort in the connection process.

Implementation Method 1

a clamping spring (2) with a clamping leg (6) for clamping a conductor (10)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

an actuating element (12) mounted in the housing (5) for opening and closing the connection terminal (1), the actuating element (12) having a handle (27)

Methodology Applied
Scientific EffectLever mechanism: Lever

Data Source

PatentEP2316150B1Electrical terminal
Publication Date: 2013.04.24 PHOENIX CONTACT GMBH & CO KG
  • EP2316150B1 patent drawingFigure 1
  • EP2316150B1 patent drawingFigure 2
  • EP2316150B1 patent drawingFigure 3

AI summary

The invention relates to an electrical terminal (1) comprising a clamping spring (2), a metal part (3), and a housing (5) accommodating the clamping spring (2) and the metal part (3), and comprising at least one conductor insertion opening (4), wherein an actuation element (12) supported in the housing (5) is provided for opening and closing the terminal (1), wherein the actuation element (12) comprises a handle (27), through which the actuation element (12) can be transferred into an opened and into an closed state. A labeling area (28), which is arranged in such a way that the labeling area (28) is visible to a user at any time, is provided for marking the terminal (1).