Modular Cable Chamber Assembly With Overlapping Sealed Joints
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Solution Overview
Problem
Existing closed systems for electrical installations in industrial environments require numerous screw connections, increasing production and installation time, and posing challenges to maintaining permanent functionality and operational reliability.
Innovation Solution
A closed system comprising interconnected chamber modules with polygonal shapes, featuring lowered overlapping edges and vertical through holes for fasteners, eliminating the need for threaded holes in module housings and using screws and nuts for connection, along with grommets for cable protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections with threaded holes are used to connect modules, then the connection strength and reliability are improved, but the manufacturing complexity and assembly time increase
Solution Approach 1:
The invention extracts the threading operation from the module housing and relocates it to separate fastener components. The module housings are provided with simple through-holes instead of threaded holes, while the fasteners contain the actual threads. This separation eliminates the need for complex threading operations in the main structural components, reducing manufacturing complexity while preserving connection reliability through the dedicated fastener design.
Solution Approach 2:
The connection system is segmented into distinct functional components: module housings with simple through-holes and separate fasteners with integrated threads. This segmentation allows each component to be optimized independently - the housings for structural integrity and the fasteners for secure attachment - thereby reducing overall manufacturing complexity while maintaining connection reliability.
2Strength
If numerous screw connections are used to connect modules, then the connection strength is improved, but the assembly time and production time increase
Solution Approach 1:
The fasteners are pre-assembled with the cable management components during fastener manufacturing, rather than being installed separately during module assembly. This preliminary action reduces the number of discrete assembly steps required during system installation, thereby increasing assembly speed while maintaining connection strength through the pre-integrated design.
3Reliability
If threaded holes are provided in module housings for screw connections, then the permanent functionality of connections is ensured, but the manufacturing time and complexity increase
Solution Approach 1:
The threading function is extracted from the module housing and transferred to dedicated fastener components. The housings only require simple through-holes which are much easier to manufacture than threaded holes, while the threading functionality is preserved in the replaceable fasteners. This extraction principle resolves the contradiction by separating the structural function (housing) from the fastening function (fastener).
Data Source
AI summary
A closed system for placing installations, especially electrical onesThe closed system for placing installations is formed by interconnected chamber modules (1, 2, 3, 4, 5) of a rectangular top view. In the connection area, the adjacent modules (1,2,3,4,5) are provided with lowered edges which overlap, and in the overlap area vertical through holes (9) are provided for module (1,2,3,4,5) fasteners. The fasteners consist of screws (11) and nuts (12). The lowered edges are provided in the horizontal abutting surfaces with horizontal coaxial passages (10). These passages (10) connect the chambers (6) of adjacent modules (1,2,3,4,5) and cables pass through them. The passages (10) are provided with a sealing grommet (13) which is made of a resilient material. The chamber modules (1,2,3,4,5) consist of two caps (7, 8) attached to each other.