Pliable Retaining Insert for Concentric Rogowski Coil Mounting
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Solution Overview
Problem
The positioning and retaining of cable-styled devices, such as Rogowski coils, around objects is challenging due to difficulties in maintaining concentricity and accommodating various geometries, especially in complex transformer setups, which affects measurement accuracy and installation efficiency.
Innovation Solution
A positioning and retaining apparatus with a first member and a second member, featuring a hinge pin and a hook-shaped element, along with pliable insert elements that can accommodate different geometries, ensuring secure engagement and alignment, even in limited spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional cable positioning methods are used, then installation can be performed with simple tools, but maintaining concentricity of the conductor and Rogowski coil becomes difficult
Solution Approach 1:
The patent introduces a positioning device with a positioning member as an intermediary tool between the installer and the cable/Rogowski coil system. This positioning member, with its specific geometric features (circular cross-section, diameter slightly larger than the conductor), acts as a mediator that automatically guides and maintains concentric alignment during installation, eliminating the need for complex alignment procedures while ensuring measurement precision.
Solution Approach 2:
The positioning device is designed to be self-aligning through its geometric features. The circular cross-section of the positioning member naturally guides the Rogowski coil into concentric positioning around the conductor without requiring active adjustment or complex tooling. The system serves itself by using the inherent geometry of the positioning member to achieve and maintain proper alignment automatically during installation.
2Manufacturing precision
If multiple tools are used for cable installation, then positioning precision can be improved, but installation efficiency and ease of operation decrease
Solution Approach 1:
The patent combines multiple positioning and alignment functions into a single integrated positioning device. The positioning member integrates the alignment guide, spacing maintainer, and concentricity assurer into one component that can be used throughout the installation process, eliminating the need for multiple separate tools and procedures while maintaining high positioning accuracy.
Solution Approach 2:
The positioning device is designed with universal applicability for different cable installation scenarios. The positioning member can accommodate various conductor sizes and Rogowski coil configurations while maintaining its core function of ensuring concentric positioning. This multi-functional design allows a single tool to replace multiple specialized tools, improving installation efficiency without sacrificing precision.
3Stability of the object's composition
If rigid positioning structures are used, then structural stability is improved, but adaptability to various cable geometries and transformer configurations decreases
Solution Approach 1:
The patent employs a positioning member with a circular cross-section that can flexibly accommodate different cable diameters and transformer geometries. The positioning member's design allows it to adapt to various configurations while maintaining structural stability during installation and operation, providing both rigidity for stability and flexibility for adaptability.
Data Source
AI summary
An insert apparatus for at least part of a retaining device includes a base member, one or more pliable retention members coupled to a first side of the base member, and one or more coupling members coupled to a second side of the base member. The retention members extend outwardly from the base member and are configured to facilitate engagement of an object irrespective of the object's geometry. The coupling member is coupled to a second side of the base member and configured for coupling to the retaining device part. In one alternative embodiment, an insert apparatus for a two-part retaining device may include a pair of insert elements that each includes a base member, one or more pliable retention members, and one or more coupling members, and at least one removable member connecting the two insert elements to facilitate fabrication of the insert apparatus as a single molded part.