Cable-Bonded Electrical Apparatus with Rounded Support Element

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Solution Overview

Problem

Wired electrical devices, particularly high-voltage cables, face mechanical stress and wear issues due to routing challenges that affect safety and reliability.

Innovation Solution

An electrical device with a dome-shaped or cylindrical rounded support element and guide elements that allow for space-saving, friction-free, and tension-free cable routing, utilizing a pivot bearing and rolling bodies for stability, and a housing design that includes cable guide elements to secure and position cables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are routed through conventional fixed structures, then cable routing is simple and device structure is stable, but cables are subject to mechanical stress, wear, and tension

Engineering Contradiction:
Improvecable safetyVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by implementing a movable cable guide element that can shift position along a guidance path. This allows the cable routing to adapt dynamically to device movements, preventing mechanical stress and wear on high-voltage cables while maintaining structural stability. The cable guide element moves together with the cable, ensuring continuous protection during device operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent uses an intermediary approach by introducing a dedicated cable guide element as a mediator between the cable and the device structure. This intermediate component absorbs and distributes mechanical stresses, preventing direct transmission of forces to the cables. The guide element acts as a buffer that protects cables from tension and wear while maintaining their electrical function.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If space-saving cable routing is implemented, then device size is reduced, but cables may experience bending stress and compression

Engineering Contradiction:
Improvedevice sizeVSAvoidcable stress
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent applies spheroidality by designing the cable guide element with a rounded, dome-shaped surface instead of sharp edges or corners. This curved geometry allows cables to bend naturally along the rounded path, distributing bending stresses evenly and preventing localized compression or damage. The smooth curvature enables space-efficient routing while protecting cables from mechanical harm.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Stability of the object's composition

If cables are secured firmly to prevent movement, then cable positioning is stable, but cables experience friction and mechanical stress

Engineering Contradiction:
Improvecable positioningVSAvoidfriction and wear
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent employs flexible shells by designing the cable guide element with a smooth, continuous surface that allows cable movement without rigid constraints. This flexible guidance structure maintains cable positioning stability while minimizing friction and mechanical stress through its ability to adapt to cable movements without creating sharp contact points or rigid restrictions.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP3993202A1Cable-bonded electrical apparatus with cable-protecting guidance
Publication Date: 2022.05.04 AUMOVIO ENGINEERING SOLUTIONS GMBH
  • EP3993202A1 patent drawingFigure 1~2
  • EP3993202A1 patent drawingFigure 3
  • EP3993202A1 patent drawingFigure 4~5

AI summary

Electrical device which is movable, in particular rollable, wherein the device has at least a first cable (1) with which the device is supplied with electrical energy, wherein the first cable (1) is guided in the device over a rounded support element (3), wherein this rounded support element (3) is arranged substantially over a pivot point with respect to the mobility of the device.