Floating Electrical Connector Alignment to Prevent Tilt Damage

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Solution Overview

Problem

Existing self-aligning electrical connectors for vehicles require complex and costly designs, particularly when connecting high-load and low-load contact elements, and are prone to damage due to tilting during assembly.

Innovation Solution

A self-aligning electrical connector system with a first connector part floatingly arranged on a support frame with three rotational and at least two translational degrees of freedom, using spring-loaded flat elements and a ball socket mechanism for alignment, allowing easy and safe attachment without damaging sensitive contact elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If connector parts are joined with complex alignment mechanisms, then alignment precision is improved, but device complexity increases and manufacturing cost increases

Engineering Contradiction:
Improvealignment precisionVSAvoidconnector design complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The alignment function is segmented into two independent parts: positioning pins on one connector part and positioning chambers on the mating connector part. This segmentation allows each component to be simple in design while collectively achieving precise alignment, avoiding the need for a complex integrated alignment mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Positioning pins act as intermediary elements that bridge the gap between the two connector parts during alignment. The pins engage with the positioning chambers to establish the correct relative position, serving as a simple yet effective mediator that eliminates the need for complex self-aligning mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If connector parts are joined with complex alignment mechanisms, then alignment precision is improved, but manufacturing cost increases

Engineering Contradiction:
Improvealignment precisionVSAvoidmanufacturing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

By dividing the alignment function into separate positioning pins and positioning chambers, each component can be manufactured independently using standard machining processes. This segmentation reduces manufacturing complexity and cost compared to producing a single complex self-aligning mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The positioning pins and chambers are designed as simple, inexpensive features that can be easily manufactured and replaced if necessary. Their simplicity allows for cost-effective production while maintaining precise alignment functionality.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Stability of the object's composition

If connector parts are rigidly fixed during assembly, then positioning stability is improved, but risk of damage to contact elements increases due to tilting

Engineering Contradiction:
Improvepositioning stabilityVSAvoiddamage risk to contact elements
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The connector part is designed with floating capability, allowing it to dynamically adjust its position and orientation during assembly. This dynamic adjustment enables the connector to compensate for misalignment and tilt, maintaining contact element integrity while achieving stable positioning through the positioning pins and chambers.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If floating arrangement with multiple degrees of freedom is used, then ease of alignment is improved, but device complexity increases

Engineering Contradiction:
Improveease of alignmentVSAvoidsupport frame mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The floating arrangement is achieved through segmented support elements (positioning pins and chambers) rather than a complex continuous mechanism. Each support element provides specific degrees of freedom independently, simplifying the overall design while maintaining ease of alignment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The floating connector part automatically aligns itself with the mating connector through the positioning pins and chambers without requiring external alignment tools or complex control mechanisms. The system serves itself by utilizing the geometric constraints provided by the positioning features.

Inventive Principle:
Principle #25Self-service

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 assembly process, prevents damage to contact elements, and enables cost-effective manufacturing, facilitating both manual and robotic attachment with improved alignment precision.

Implementation Method 1

a ball cup between the flat elements. The ball cup supports a ball that is in contact with the support frame

Methodology Applied
Scientific EffectSpherical joint mechanism: Ball

Implementation Method 2

The flat elements of the first connector part are loaded with a spring force by spring arms formed on the support frame

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS12355188B2Self-aligning electrical connector system
Publication Date: 2025.07.08 KOSTAL KONTAKT SYSTEME GMBH & CO KG
  • US12355188B2 patent drawing
  • US12355188B2 patent drawing
  • US12355188B2 patent drawing

AI summary

A self-aligning electrical connector system for data and/or energy transmission includes first and second connector parts and a support frame. The first connector part includes positioning pins, flat elements, and a ball socket positioned between the flat elements. The second connector part is attachable to the first connector part and includes positioning chambers engageable with the positioning pins to achieve a coarse positioning of the connector parts relative to one another. The support frame has a flat central bar including spring arms. A ball is supported by the ball socket. The first connector part is supported on the support frame by spring forces of the spring arms acting on the flat elements and is supported on the ball with the ball being rollable on the central bar whereby the first connector part is floatingly arranged on the support frame and is shiftable and tiltable relative to the support frame.