Electrical Connector Mantle Terminal Offset for Compact Conductor Branching

Solution Overview

Problem

Existing electrical connectors lack the ability to connect additional conductors in a compact space, especially in automation technology and field bus systems, where space is limited and flexible conductor management is required.

Innovation Solution

An electrical connector design featuring a mantle terminal with a plug-in contact pin and a contact bridge, where the mantle terminal and plug-in contact pin are offset, allowing for parallel conductor connection and distribution without interference, using a combination of a mantle clamp with a U-shaped recess and a screw-on upper part for secure attachment, along with a disc spring for prevention of unintentional loosening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional mantle clamp is used to fix two stripped cable ends in anti-parallel alignment, then the conductor connection is stable, but the installation space requirement increases and additional conductor connection is not allowed

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent transitions from a traditional single-plane mantle clamp to a multi-level structure where the contact bridge extends vertically. The plug-in contact pin is positioned at a different height level than the mantle clamp, allowing conductors to be connected in different spatial dimensions. This enables additional conductor connections without increasing the horizontal installation footprint, effectively resolving the contradiction between versatility and space consumption.

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

2Ease of operation

If the mantle terminal and plug-in contact pin are positioned at the same level, then the structure is simple, but the connections interfere with each other during assembly

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The contact bridge is designed to extend in the vertical direction, positioning the plug-in contact pin at a different height level than the mantle terminal. This vertical separation eliminates interference between connections during assembly while maintaining a compact overall structure. The multi-level arrangement allows independent access to each connection point without complicating the fundamental structural design.

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

3Reliability

If the mantle clamp is made tightly secured to prevent loosening, then the connection reliability increases, but the assembly difficulty increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The contact bridge is pre-assembled with the plug-in contact pin in a standardized configuration before installation. This preliminary preparation allows the mantle clamp and contact bridge to be quickly connected as a unit, reducing assembly complexity. The pre-arranged structure ensures proper alignment and secure connection without requiring complex assembly procedures on-site.

Inventive Principle:
Principle #10Preliminary action

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 efficient, compact connection and distribution of flexible conductors with reduced wiring space, allowing for branching and easy assembly, while preventing jamming and ensuring high contact pressure and reliability.

Implementation Method 1

a disc spring is arranged between the nut and the contact bridge. This achieves the technical advantage, for example, that unintentional loosening of the mantle clamp is prevented.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3066720B1Electrical connector with a sheath clamp
Publication Date: 2019.01.30
  • EP3066720B1 patent drawingFigure 1
  • EP3066720B1 patent drawingFigure 2
  • EP3066720B1 patent drawingFigure 3

AI summary

The invention concerns an electrical connector (100) for electrically contacting an electrical conductor (101) with a sheath clamp (103, 105) for inserting the electrical conductor (101), a plug contact pin (109) for fitting on a socket, and a contact bridge (111), on which the sheath clamp (103, 105) and the plug contact pin (109) are secured.