Switch-Cabinet Sealing Insert for Redundant Dust and Moisture Protection
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Solution Overview
Problem
Existing switch-cabinet systems lack a redundant sealing concept, which makes them vulnerable to moisture and dust intrusion, potentially leading to system failure in harsh environments such as manufacturing machines.
Innovation Solution
A switch-cabinet system with a sealing insert featuring a frame with functional and base sections that engage with the housing, along with multiple seals and a cover, providing a redundant sealing mechanism to prevent moisture and dust intrusion, and guiding the functional module during assembly, while also serving as an assembly aid and heat dissipation component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing ring is used between the base module and functional module, then sealing is provided, but the sealing concept is not redundant and remains vulnerable to moisture and dust intrusion
Solution Approach 1:
The sealing insert is divided into multiple functional sections: a first sealing section with a first seal for sealing the interface between base and functional modules, a second sealing section with a second seal for sealing the through-opening, and optionally a third sealing section with a third seal for additional interface sealing. This segmentation creates redundant sealing paths that independently protect against moisture and dust intrusion.
Solution Approach 2:
The patent implements beforehand cushioning by providing multiple seals (first seal, second seal, and third seal) that create redundant sealing barriers before moisture or dust can penetrate the housing. If one seal fails or is compromised, the other seals continue to provide protection, ensuring reliable sealing against harmful environmental factors.
2Ease of operation
If the functional module is directly mounted on the base module, then assembly is simple, but there is no guidance during assembly and increased risk of mechanical impact
Solution Approach 1:
The sealing insert acts as an intermediary component between the base module and functional module. It provides guiding surfaces that facilitate proper alignment during assembly while protecting the connection elements. The sealing insert's frame with engagement elements guides the functional module into correct position, preventing misalignment and reducing mechanical impact risks.
3Reliability
If connection elements are exposed at the interface, then electrical connection is achieved, but the interface is vulnerable to moisture and dust penetration
Solution Approach 1:
The sealing insert structure nests multiple sealing functions within a single component. The first sealing section seals around the connection elements, the second sealing section seals the through-opening, and the third sealing section provides additional protection. This nested sealing approach protects exposed connection elements from moisture and dust while maintaining electrical connectivity.
Data Source
AI summary
A switch-cabinet system comprises a base module with a base housing and at least one functional module with a functional housing. A functional connection element is arranged in the functional housing in the area of a first through-opening on a bottom side of the functional housing. A base connection element is arranged in the base housing in the area of a second through opening on a top side of the base housing. The bottom side of the functional housing rests against the top side of the base housing. The functional and base connection elements engage and form an interface. The system also includes a sealing insert having a frame with a functional section engaging the functional housing and a base section engaging the base housing. The functional section abuts an inner wall of the functional housing. The base section abuts a wall of the base housing defining the second through-opening.