Switchgear Mounting Support With Sliding Insulating Fixing Elements

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Solution Overview

Problem

Existing electrical equipment supports are difficult to assemble and attach securely to receiving elements, and their metal components can interfere with radio wave operations, limiting their use conditions.

Innovation Solution

The electrical equipment support features interchangeable mounting elements, such as plates or claws, made of insulating materials, with sliding and locking mechanisms that facilitate easy assembly and disassembly, allowing for different materials and configurations based on use conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a metallic plate is used for mounting elements to resist fixing screw forces, then the mechanical strength is improved, but the radio wave transmission is interfered with

Engineering Contradiction:
Improvemechanical strengthVSAvoidradio wave interference
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The material parameter of the mounting element is changed from metallic to polymer, fundamentally altering the electromagnetic properties while maintaining mechanical functionality. This parameter change eliminates radio wave interference while preserving the structural strength needed to resist fixing screw forces.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses polymer materials as composite alternatives to traditional metallic materials for the mounting element. This material substitution provides both mechanical strength for fixing and electromagnetic transparency for radio wave transmission, resolving the contradiction between structural requirements and radio wave compatibility.

Inventive Principle:
Principle #40Composite materials

2Manufacturing precision

If the plate is fixed rigidly in the housing to maintain positioning, then the mounting precision is improved, but the assembly complexity increases due to alignment requirements

Engineering Contradiction:
Improvemounting precisionVSAvoidassembly complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mounting element is designed with mobility within the housing, transitioning from a rigid fixed position to a dynamic adjustable position. This allows the element to move and self-align during assembly, reducing the need for precise pre-alignment while maintaining accurate final positioning through the mobility mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting element incorporates self-aligning features that enable it to automatically position itself correctly within the housing during assembly. This self-service mechanism eliminates the need for complex external alignment tools or procedures, reducing assembly complexity while ensuring mounting precision.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3503322B1Electrical switchgear mounting receiving a mounting member
Publication Date: 2026.04.22 LEGRAND FRANCE SA
  • EP3503322B1 patent drawingFigure 1
  • EP3503322B1 patent drawingFigure 2~3
  • EP3503322B1 patent drawingFigure 4~6

AI summary

The invention relates to an electrical switchgear support (100) comprising: - a body (110) including a frame (112) delimited by, on the one hand, an internal peripheral edge (111) defining a receiving opening (115) for receiving an electrical switchgear mechanism (20), and, on the other hand, an external peripheral edge (113) defining at least one recess (140) formed in said frame, and - at least one mounting element (150) received in said recess for fixing said electrical switchgear support to a receiving element. According to the invention, said recess includes sliding means (130) allowing said mounting element to slide within the recess, in translation along a transverse direction (Y1) generally perpendicular to the portion of the internal peripheral edge closest to said recess.