Electrical Cabinet Mounting Rail With Tool-Free Locking and Cable Routing

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Solution Overview

Problem

Existing mounting systems for electrical devices in control cabinets lack versatility, ease of assembly, and efficient use of available space, often requiring complex and tool-dependent assembly processes.

Innovation Solution

A mounting system featuring a horizontally oriented mounting web with symmetrically arranged bundling chambers for connecting lines, a detachable locking mechanism, and adapter elements that allow for easy assembly and disassembly without tools, utilizing a standardized top-hat rail and profiled rods to form a preassembled frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing mounting systems are used, then devices can be mounted in control cabinets, but the assembly process is complex and requires tools

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

Solution Approach 1:

The mounting system is divided into modular components: mounting webs with integrated locking mechanisms, separate bundling chambers, and detachable adapter elements. This segmentation allows each component to be independently manufactured and assembled through simple snap-together operations without requiring complex tooling or assembly sequences.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking mechanism is integrally combined with the mounting web structure, eliminating the need for separate locking components. The bundling chambers are also integrated directly into the mounting web, combining device mounting and cable management functions into a single unified component that simplifies the overall assembly process.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If existing mounting systems are used, then devices can be mounted, but available space is not efficiently utilized

Engineering Contradiction:
Improvespace utilization efficiencyVSAvoidavailable assembly space
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The mounting web serves multiple functions simultaneously: it provides a mounting surface for electrical devices, incorporates integrated locking mechanisms for secure attachment, includes built-in bundling chambers for cable management, and offers adapter elements for additional component attachment. This multi-functionality maximizes the utility of each unit of space occupied by the mounting system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system utilizes three-dimensional space efficiently by incorporating bundling chambers that extend into the depth of the mounting web structure. This vertical and depth-wise utilization of space allows cable management to occur within the same footprint as device mounting, rather than requiring additional horizontal space.

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

3Ease of operation

If existing mounting systems are used, then devices can be mounted, but assembly and disassembly require tools

Engineering Contradiction:
Improvetool-free assemblyVSAvoidsecure attachment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking mechanism is designed to automatically engage and lock components together through a snap-fit action that requires no external tools or manual intervention. The bundling chambers similarly self-lock when cables are inserted, and adapter elements automatically secure to the mounting web through complementary geometric features that provide tool-free assembly while maintaining reliable attachment.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2878053B1Assembly system for the mounting of electrical devices in electrical cabinets
Publication Date: 2018.10.03 FRIEDRICH LUTZE
  • EP2878053B1 patent drawingFigure 1
  • EP2878053B1 patent drawingFigure 2~3
  • EP2878053B1 patent drawingFigure 4~5

AI summary

The invention relates to a mounting system (1) for arranging electric devices (2), for example, especially in switchgear cabinets. Said mounting system (1) comprises at least one preferably horizontal mounting strip (3), to the front face of which at least one device (2) can be secured. The invention is characterized in that the mounting strip (3) comprises at least one locking flange (63) on its rear side lying opposite the device (2) that is to be secured. Said locking flange, onto which another component (65) of the mounting system (1) can be directly locked or can be indirectly secured by means of a lockable adapter element (66), extends in the longitudinal direction of the mounting strip (3).