Conductor Sleeve Field Control Using Conductive Yarn Winding
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Solution Overview
Problem
Existing electrical conductor assemblies face issues with high electric field intensities at the end of the conductive sleeve, leading to discharges that can damage the insulating jacket, particularly when the sleeve edge is sharp-edged.
Innovation Solution
An electrical conductor assembly with an electrically conductive yarn wound around the insulating jacket section adjacent to the conductive sleeve, allowing for precise and adaptable field control through material selection and winding design, minimizing installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conductive sleeve with sharp edges is used for shielding, then shielding effectiveness is improved, but electric field intensity at the sleeve end increases causing discharges
Solution Approach 1:
The patent applies curvature by replacing the sharp-edged sleeve termination with a rounded or curved geometry. The conductive yarn is wound around the insulating jacket in a manner that creates a curved transition zone, eliminating sharp edges that concentrate electric field. This curvature distributes the electric field more evenly, preventing discharge while maintaining shielding effectiveness.
Solution Approach 2:
The conductive yarn acts as an intermediary element between the conductive sleeve and the insulating jacket termination. Instead of the sleeve directly ending at the insulating jacket (creating a sharp edge), the yarn provides a transitional layer that mediates the electric field distribution, reducing intensity at the critical interface region.
2Object-affected harmful factors
If geometric field control with large radii is used, then field intensity is reduced, but device size and complexity increase
Solution Approach 1:
The patent uses a flexible conductive yarn wound around the insulating jacket as a thin-film approach to field control. Instead of requiring large-radius geometric modifications that会增加 device size, the yarn provides a thin, flexible layer that achieves field control through its proximity and conductive properties, maintaining compact device dimensions while reducing field intensity.
3Manufacturing precision
If resistive field control coatings are applied, then field control precision is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The conductive yarn structure is self-forming through the winding process. The yarn itself, by its placement and winding pattern around the insulating jacket, automatically creates the field control function without requiring additional coating steps, precision application processes, or complex manufacturing sequences. The structure serves its own field control purpose through its geometric arrangement.
4Object-affected harmful factors
If refractive materials with high permittivity are used for AC voltage systems, then field control is improved, but device complexity and material requirements increase
Solution Approach 1:
The patent achieves field control by changing the geometric parameters of the conductive yarn arrangement (winding density, pitch, tension, pattern) rather than relying on materials with extreme permittivity values. By adjusting these geometric parameters, the system achieves effective field control using conventional materials, avoiding the need for complex refractive materials while maintaining AC voltage system compatibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides effective field control that is adaptable to specific requirements, reducing discharge risks and protecting the insulating jacket while requiring minimal space.
Implementation Method 1
The electric field drives a current through these materials, which, together with their resistance, results in a voltage drop. This voltage drop in turn defines the potential along the surface.
Implementation Method 2
The electric field drives a current through these materials, which, together with their resistance, results in a voltage drop.
Implementation Method 3
an electrically insulating jacket disposed around at least one section of the conductor
Data Source
AI summary
An electrical conductor assembly includes an electrical conductor, an electrically insulating jacket disposed around a conductor section of the electrical conductor, an electrically conductive sleeve disposed around a first insulating jacket section of the insulating jacket, and an electrically conductive yarn for realizing an electric field control. The electrically conductive yarn is wound around a second insulating jacket section of the electrically insulating jacket in adjacent relation to the first insulating jacket section.