Switchgear Frame Profile with Composite Hollow Chamber
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Solution Overview
Problem
Existing frame profiles for switch cabinets lack efficient material savings while maintaining rigidity and load-bearing capacity, particularly for suspension chassis, and do not offer versatile functionality for cable protection and assembly options.
Innovation Solution
A frame profile with a continuous hollow chamber, where the outer part profile is made of a material more resistant to corrosion and has greater strength than the inner part profile, which is folded to form profile attachments with perforations, allowing for various fillings like foam for damping or cable routing, and enabling assembly from both sides with adjustable properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a complex profile structure is used to maintain rigidity and load-bearing capacity, then structural strength is improved, but material consumption increases
Solution Approach 1:
The frame profile combines an outer profile (first material) and an inner profile (second material) to form a composite structure. The outer profile provides corrosion resistance while the inner profile provides structural strength, achieving both durability and load-bearing capacity with optimized material usage.
Solution Approach 2:
Different parts of the frame profile have different material properties tailored to their specific functions. The outer profile uses corrosion-resistant material for environmental protection, while the inner profile uses high-strength material for structural support, optimizing material distribution according to local requirements.
2Quantity of substance
If the inner profile material thickness is reduced to save material, then material consumption decreases, but the thickness available for attachments is insufficient
Solution Approach 1:
The inner profile is folded to form profile attachments that extend from the hollow chamber. This folding creates additional dimensional space and surface area for attachments, providing sufficient effective thickness for self-tapping screws and other fasteners while using less base material.
Solution Approach 2:
The inner profile is segmented into different functional zones: the main wall sections provide structural integrity with reduced thickness, while the folded profile attachments provide extended surfaces for secure mounting of components.
3Strength
If a solid profile structure is used to maintain strength, then structural integrity is improved, but versatility for cable routing and damping is reduced
Solution Approach 1:
The hollow chamber provides void space that can be filled with foam materials (open-pored or closed-pored) to provide damping properties and cable protection, while the outer and inner profiles maintain structural integrity. The hollow structure allows for versatile functionality without compromising strength.
4Reliability
If the outer profile material is made more corrosion-resistant to improve durability, then corrosion resistance is improved, but material cost and complexity increase
Solution Approach 1:
The outer profile specifically uses corrosion-resistant material to protect against environmental degradation, while the inner profile uses cost-effective high-strength material for structural support. This localized material selection optimizes both durability and cost efficiency.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a frame section for a framework of a switchgear cabinet, consisting of: an outer partial profile (20), which is made of a first material, the outer partial profile (20) forming at least one first wall (22) of the frame profile (10), which partially delimits a hollow chamber (40); and an inner partial profile (30), which is made of a second material and which is different from the first material with regard to at least one property, the inner partial profile (30) forming at least one further wall (32, 34, 36) of the hollow chamber (40).