Galvanized Steel Cabinet Riveted Sealing for Railway IPX6
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Solution Overview
Problem
Existing boxes for electrical equipment in railway vehicles lack effective and economical solutions for protection against dust and humidity while being easy to produce and assemble.
Innovation Solution
A box for electrical equipment with a frame formed from galvanized steel metal plates assembled by riveting, using a sealant between overlapping regions and blind rivets for assembly, providing a secure seal without the need for painting or additional mechanical fixing, achieving IPX6 protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal plates are assembled by welding or screwing, then structural strength is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The box structure is divided into multiple metal plate components that can be assembled together. This segmentation allows for simplified manufacturing of individual plates while maintaining overall structural integrity through the assembly system.
Solution Approach 2:
A sealing element acts as an intermediary component between overlapping metal plates. This intermediary not only provides sealing functionality but also facilitates the assembly process by enabling simple mechanical connection (such as riveting or clipping) while maintaining both strength and ease of manufacture.
2Object-affected harmful factors
If complex sealing methods are used, then protection against dust and humidity is improved, but manufacturing time and cost increase
Solution Approach 1:
A flexible sealing element (such as a rubber or polymer profile) is used to create the seal between metal plates. This flexible seal can be easily installed in grooves or channels on the metal plates, providing effective dust and humidity protection while requiring minimal manufacturing steps and time.
Solution Approach 2:
The sealing element serves as an intermediary that simplifies the sealing process. Instead of requiring complex welding, gasket systems, or multi-step sealing procedures, the intermediary seal provides effective protection against dust and humidity through a single, easy-to-install component.
3Strength
If additional mechanical fixing and painting are applied, then structural integrity and corrosion resistance are improved, but production cost and time increase
Solution Approach 1:
The box utilizes composite construction combining metal plates with polymer or rubber sealing elements. This composite approach provides both structural integrity from the metal components and corrosion resistance from the naturally resistant properties of the sealing materials, eliminating the need for additional protective coatings while reducing overall production cost.
Solution Approach 2:
The invention extracts and eliminates unnecessary manufacturing steps such as painting and complex mechanical fixing. By using metal plates with integrated sealing elements and simple assembly methods (like riveting or clipping), the design removes redundant processes while maintaining structural integrity and corrosion resistance.
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 solution offers effective protection against dust and humidity, is economical to produce, and easy to assemble, ensuring reliable operation in railway environments with reduced manufacturing time and cost.
Implementation Method 1
a sealant 28 being interposed between the overlap regions 24, 26
Implementation Method 2
The two metal plates 20, 22 are assembled together by means of rivets 30
Implementation Method 3
The metal plates are preferably made of super-galvanized steel, that is to say covered with a coating based on zinc, aluminum and magnesium
Data Source
Figure 1
Figure 2
AI summary
This box delimits a volume for receiving electrical equipment, and is formed by an assembly of galvanized steel metal plates (20, 22). The metal plates of each pair of metal plates (20, 22) assembled together have overlapping regions (24, 26) which overlap each other and are assembled by means of rivets (30) passing through the overlapping regions (24, 26), a sealing mastic (28) being interposed between the overlapping regions (24, 26).