Push-on Seal for Electrical Cabinet Baying
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Solution Overview
Problem
Existing switch cabinet systems require complex assembly steps and tools for sealing at connection points, which complicates the stacking and modular adaptation of switch cabinet units, especially in terms of achieving a dust- and moisture-proof seal.
Innovation Solution
A push-on seal with opposing legs of varying lengths or widths, and an H-shaped cross-section, which allows for a friction fit and compensates for tolerances, enabling tool-free assembly and ensuring a secure, dust- and moisture-proof connection between frame profiles without the need for specialized profile attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a strip seal is inserted at the junction of opposing frame profiles with a coupling part pressed together by bolts, then sealing integrity is improved, but assembly complexity increases and tool-free assembly is lost
Solution Approach 1:
The invention extracts the sealing function from the complex bolted coupling system and implements it through a simple push-on seal that attaches to the profile extensions. The seal is separated from the structural connection, allowing the seal to be applied independently without requiring bolts or complex assembly tools.
Solution Approach 2:
The push-on seal acts as an intermediary element between the frame profiles. Instead of directly coupling profiles with bolts and strip seals, the invention uses profile extensions as intermediaries that the push-on seal can easily attach to, simplifying the entire assembly process while maintaining sealing integrity.
2Reliability
If multiple assembly steps and tools are required for sealing, then sealing reliability is improved, but productivity decreases
Solution Approach 1:
The push-on seal is designed to be self-installing on the profile extensions without requiring external tools or multiple assembly steps. The snap-fit mechanism allows workers to simply push the seal onto the extensions, making the sealing process as simple as the structural connection itself, thereby maximizing productivity while maintaining reliability.
3Ease of operation
If a friction fit is used for the push-on seal, then ease of assembly is improved, but sealing precision may be compromised
Solution Approach 1:
The push-on seal has non-uniform cross-section with different leg lengths, creating different local fit characteristics. The longer leg provides a friction fit for easy assembly, while the shorter leg creates a gap that allows the seal to be compressed and deformed to conform to the profile extension, ensuring precise sealing at the critical sealing surface.
Solution Approach 2:
The invention changes the geometric parameters of the push-on seal, specifically making the legs of different lengths. This parameter variation allows the seal to have different functional characteristics at different locations: easier insertion at one end and better sealing contact at the other end, resolving the contradiction between ease of assembly and sealing precision.
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
Facilitates easy, tool-free assembly and adaptation of switch cabinet units, ensuring stability and sealing integrity, allowing for modular configuration and use with different profile geometries while maintaining dust- and moisture-proof seals.
Implementation Method 1
the profile attachment is at least enclosed with a friction fit
Implementation Method 2
it is ensured by a suitable choice of material that the slip-on seal rests on the profile approach under a certain internal stress of the material
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates to an electrical enclosure system which is made of lined-up electrical enclosure units. Each electrical enclosure unit comprises a frame structure which is made of profiled frame parts. At least the vertical profiled frame parts have the following features: the profiled frame part (100, 100'; 200, 200'; 300, 300') is mirror symmetrical with respect to a cross-sectional diagonal (D); the profiled frame part has profiled sides (111, 112; 211, 212; 311, 312) which form the outer faces of the frame structure; profiled extensions (114, 115; 214, 215; 314, 315) extend from the profiled sides (111, 112; 211, 212; 311, 312), each profiled extension extending away from the profiled sides (111, 112; 211, 12; 311, 312); and mirror symmetrically corresponding profiled extensions (114', 115; 214', 215; 314', 315) of two profiled frame parts oppose each other when two frame structures are lined up, wherein an intermediate space remains between the end faces of the profiled extensions, said intermediate space being closed by a seal (130; 230; 330; 510, 530, 550). The invention is characterized in that the seal (130; 230; 330) is a plug-on seal which sits on at least one of the opposing profiled extensions (114', 115; 214', 215; 314', 315).