Modular Cable Rack With Slidable Adapter for Short-Circuit Strength
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Solution Overview
Problem
Traditional cable rack systems lack flexibility and strength, particularly in high-voltage installations, where pre-drilled holes and screw connections can fail during short circuits, posing safety risks.
Innovation Solution
A modular cable rack system featuring a C-shaped guide channel and a U-shaped slidable fitting adapter that provides a snug form-fit connection, allowing for flexible positioning and secure attachment using screws or bolts, with fibre-reinforced plastic materials for enhanced strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pre-drilled holes and screw connections are used to connect fitting adapters to guide channels, then the assembly can be easily manufactured and installed, but the connection strength is insufficient and material failure can occur during short circuits
Solution Approach 1:
The patent employs composite material construction where the fitting adapter combines a plastic body with a metal reinforcement element (such as a metal insert or strengthening rib). This composite structure provides both ease of manufacturing through plastic injection molding and high connection strength through the metal component, resolving the contradiction between easy assembly and strong connection during short circuit conditions.
2Ease of operation
If pre-drilled holes are provided in the factory for assembly, then the installation process is simplified, but the system loses flexibility in positioning components during installation
Solution Approach 1:
The patent incorporates pre-marked positioning indicators or alignment features molded into the fitting adapter and guide channel during manufacturing. These preliminary markings guide the installer to the correct positions without requiring pre-drilled holes, thus maintaining installation ease while preserving positioning flexibility for different installation scenarios.
3Device complexity
If traditional screw connections are used to fix fitting adapters to guide channels, then the system can be assembled with simple components, but the connection may fail during violent short circuits in high-voltage installations
Solution Approach 1:
The fitting adapter uses a composite structure with plastic and metal components integrated together. The metal reinforcement element (insert, rib, or embedding) provides high mechanical strength and connection reliability during violent short circuits, while the plastic body maintains component simplicity and ease of assembly, thus resolving the contradiction between simple components and reliable connection.
4Weight of moving object
If the guide channel and fitting adapter use thin materials to reduce weight and complexity, then the system is easier to handle, but the material can bend or deform under stress during short circuits
Solution Approach 1:
The fitting adapter employs composite material construction combining lightweight plastic with strategically placed metal reinforcement elements. This provides the necessary material strength to resist bending and deformation during short circuits while maintaining overall system lightness through the plastic components, resolving the contradiction between low weight and high strength.
Data Source
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AI summary
Disclosed herein is a modular cable rack and support system comprising a C-shaped guide channel (2) and a U-shaped slidable fitting adapter (4, 4') comprising a mounting mechanism (26, 26'). The U-shaped slidable fitting adapter (4, 4') is designed to enter and slide in the C-shaped guide channel (2), the C-shaped guide channel (2) comprising an intermediate part (14) extending along a length of the C-shaped guide channel (2) and a pair of extensions (12) interconnected by the intermediate part (14), said pair of extensions (12) being arranged to extend in the same direction on longitudinal sides of the intermediate part (14). The pair of extensions (12) also extending along the length of the C-shaped guide channel (2), whereby the pair of extensions (12) each comprise a partially encompassing part (34) at their respective free ends. The U-shaped slidable fitting adapter (4, 4') comprises a pair of flange portions (18) and a bridge part (20, 20'), whereby the pair of flange portions (18) are arranged to extend in the same direction on two opposite sides of the bridge part (20, 20'). The partially encompassing parts (34) have an inner radius, which corresponds to an outer radius of corners between the pair of flange portions (18) and the bridge part (20, 20'), whereby the bridge part (20, 20') further comprises a pair of edges (28) arranged opposite one another so that the partially encompassing parts (34) abut the pair of edges (28) when the U-shaped slidable fitting adapter (4, 4') is positioned in the C-shaped guide channel (2).