Magnetic Trailer Connector Alignment System

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Solution Overview

Problem

Existing plug connection systems for trailers and towing vehicles are cumbersome due to the need to align and twist the plug contacts, making the connection process inconvenient.

Innovation Solution

A plug connection system utilizing a magnet arrangement to facilitate the alignment and secure connection of the connectors, allowing for easier handling and operation, with features like magnetic attraction or repulsion to assist in the plugging process and guide means for correct orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional plug connection systems are used with sockets and pin contacts, then electrical connection between towing vehicle and trailer is achieved, but the connection process becomes awkward and inconvenient requiring alignment and twisting movements

Engineering Contradiction:
Improveease of connectionVSAvoidconnection process complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the conventional mechanical plug connection system with a magnetic coupling system. Magnets embedded in the connector housings create magnetic attraction forces that automatically guide and secure the connectors together, eliminating the need for manual alignment and twisting movements required by traditional socket-and-pin systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic coupling system enables self-alignment and self-securing of the connectors. The magnetic attraction automatically guides the connectors into proper alignment and holds them securely in place without requiring manual manipulation or complex alignment procedures by the user.

Inventive Principle:
Principle #25Self-service

2Shape

If the towing vehicle connector is concealed behind the bumper for aesthetic purposes, then visual appearance is improved, but accessibility and operation become more difficult

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidaccessibility
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The magnetic coupling system allows the connector to be concealed behind the bumper while maintaining ease of operation. The strong magnetic attraction automatically draws the connectors together even when positioned in a concealed location, eliminating the need for manual manipulation that would be difficult if the connector were hidden.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If standard DIN 1724 or ISO 11446 connectors are used, then compatibility with existing trailers is achieved, but the connection process remains awkward and requires twisting movements

Engineering Contradiction:
ImprovecompatibilityVSAvoidease of connection
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces the standard DIN 1724 or ISO 11446 mechanical connection system with a magnetic coupling system that eliminates twisting movements. The magnetic attraction provides automatic alignment and secure connection without requiring the manual manipulation and twisting that characterizes conventional connector systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

The system simplifies the connection process, ensuring reliable and secure engagement of the connectors while allowing for easy operation, even when concealed behind a bumper, and supports both contact-based and contactless data and energy transmission.

Implementation Method 1

The two plug connectors ( 30 , 50 ) are acted upon towards one another by a magnet arrangement ( 45 ), with which the plug-in projection ( 55 ) is attracted towards the plug-in receptacle ( 35 ) or is repelled by the latter

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

The two plug connectors ( 30 , 50 ) are acted upon towards one another by a magnet arrangement ( 45 ), with which the plug-in projection ( 55 ) is attracted towards the plug-in receptacle ( 35 ) or is repelled by the latter

Methodology Applied
Scientific EffectMagnetic repulsion: Magnetism

Data Source

PatentEP3331103B1Electrical connection system for the electrical connection of a trailer to a towing vehicle
Publication Date: 2019.11.27 WESTFALIA AUTOMOTIVE
  • EP3331103B1 patent drawingFigure 1~10
  • EP3331103B1 patent drawingFigure 2~5
  • EP3331103B1 patent drawingFigure 6~8

AI summary

The invention relates to a plug connection system (10) for electrically connecting a trailer (90) to a towing vehicle, wherein the plug connection system (10) comprises a trailer connector (50) with an electrical trailer interface (51) for an on-board network (92) of the trailer and a towing vehicle connector (30) with an electrical towing vehicle interface for an on-board network (82) of the towing vehicle, wherein one of the connectors has a plug projection (55) arranged on its connector housing and the other connector (30, 50) has a plug receptacle (35) arranged on its connector housing for plugging in the plug projection (55) along a plug axis (S), wherein the connectors have cooperating electrical transmission elements (38; 58) for transmitting data and/or energy from one connector (30, 50) to the other connector.The connector system (10) is provided to have a magnetic arrangement (45) with at least one magnetic element (46) arranged on one connector and at least one magnetic counter-element (66) arranged on the other connector which interacts magnetically with the magnetic element (46) for applying force to the plug projection (55) for plug reception (35) in the direction of the plug axis (S) and/or in the sense of a torque about the plug axis (S).