Ground Cone Tabs With Helical Edges for Reliable Conduit Grounding
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Solution Overview
Problem
Existing ground cone designs for electrical conduit systems face challenges in ensuring reliable electrical contact and ease of installation, particularly due to the positioning of helical edges and the lack of centering mechanisms.
Innovation Solution
The proposed ground cone design features a cone body with radially extending tabs, including helical edges and projections, which facilitate rotatable coupling with conduits. A leading portion aids in centering the ground cone within the conduit, while a bulging portion enhances electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground cones use traditional designs without centering mechanisms, then the structure is simpler, but the electrical contact reliability is insufficient
Solution Approach 1:
The ground cone incorporates a leading portion at its front end that performs the centering action before the main body enters the conduit. This preliminary centering ensures proper alignment and electrical contact reliability from the start of installation, eliminating the need for complex separate centering mechanisms while maintaining structural simplicity.
2Ease of operation
If ground cones lack rotatable coupling features, then the installation process is simpler, but the ease of installation into threaded conduits is reduced
Solution Approach 1:
The ground cone features tabs with helical edges that enable rotatable coupling with threaded conduits. During installation, the ground cone can be rotated to engage with the conduit threads, providing secure mechanical and electrical connection. This dynamic coupling mechanism simplifies installation while maintaining a relatively simple overall structure.
3Reliability
If ground cones use uniform tab designs without projections, then the manufacturing is simpler, but the electrical contact strength is insufficient
Solution Approach 1:
The tabs of the ground cone incorporate radial projections at specific locations to enhance electrical contact strength at critical points. These localized projections are positioned where maximum contact pressure is needed, providing improved electrical reliability without requiring complex modifications to the entire tab structure, thus maintaining relative manufacturing simplicity.
Data Source
AI summary
A ground cone for providing electrical contact to an interior of a conduit is provided. The ground cone includes a cone body including one or more tabs positioned on the cone body and extending radially outward from the cone body, the one or more tabs positioned separately from one another. At least one of the one or more tabs has a helical edge, the helical edge shaped to be received in a groove of a thread. The cone body includes a cap end and a bottom end opposite the cap end. The ground cone also includes a cap extending longitudinally from the cone body at the cap end and extending toward the bottom end. The cone body and the cap define a channel sized to receive an end of a conduit therein.