High-voltage cable having a plurality of conductors
The high-voltage cable with multiple conductors addresses safety and efficiency issues in electrostatic paint charging by reducing capacitance and energy storage, ensuring safe and reliable operation.
WO2026077781A1 Publication Date: 2026-04-16DUERR SYST AG
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Patent Information
- Application Number
- PCT/EP2025/078125
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-10-09
- Filing Date
- 2025-10-01
- Publication Date
- 2026-04-16
AI Technical Summary
Technical Problem
High-voltage cables used in electrostatic paint charging systems pose safety risks due to stored electrical energy, capacitance-induced inertia, and increased capacitance from monitoring systems, leading to longer cycle times and potential spark discharges.
Method used
A high-voltage cable design with multiple conductors, preferably arranged coaxially, providing redundancy and reduced capacitance, allowing for safe and efficient electrostatic charging without the need for additional monitoring systems.
Benefits of technology
The redundant conductor design ensures safe operation by minimizing stored energy and capacitance, reducing inertia, and maintaining system availability while avoiding the drawbacks of conventional systems.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a high-voltage cable (6), in particular for electrostatically charging a paint in a painting system for painting motor vehicle body components (14) with a paint. The high-voltage cable (6) according to the invention has an electrically conductive first conductor (7) extending in the longitudinal direction of the cable. According to the invention, the high-voltage cable (6) additionally has an electrically conductive second conductor (9) extending in the longitudinal direction of the cable, wherein the second conductor (9) is electrically insulated from the first conductor (7). The invention further relates to a coating system having such a high-voltage cable (6) and to the novel use of such a high-voltage cable (6) in a coating system.
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