Cartridge heating element for a medium-voltage heater
The cartridge heater's dual insulation system with magnesium oxide and boron nitride addresses material expenditure issues, ensuring cost-effective and reliable operation by optimizing insulation for varying voltage drops.
DE102024137641A1Pending Publication Date: 2026-06-18SCHNIEWINDT
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- SCHNIEWINDT
- Filing Date
- 2024-12-13
- Publication Date
- 2026-06-18
AI Technical Summary
Technical Problem
Existing medium-voltage heaters require significant material expenditure for insulation due to the need for uniform insulation across varying voltage drops, compromising cost-effectiveness and reliability.
Method used
The cartridge heater design incorporates separate core and sheath insulations, using magnesium oxide for core insulation and boron nitride for sheath insulation, each tailored to specific voltage requirements, allowing for cost-effective manufacturing while ensuring reliable operation.
Benefits of technology
This design reduces material costs and maintains reliable electrical insulation, compensating for thermal expansion differences between materials, preventing thermal stress, and enabling efficient heat dissipation.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 00000000_0000_ABST
Abstract
A cartridge heater (1) for a medium-voltage heater has a heating conductor (2) which runs in a concentric helix radially spaced from a longitudinal center axis (3) of the cartridge heater (1) in the longitudinal direction of the cartridge heater (1), a centered return conductor (4) which runs in the longitudinal center axis (3) of the cartridge heater (1), and a sheathing tube (5) which surrounds the return conductor (4) and the heating conductor (2) at a predetermined radial distance to the heating conductor (2). In order to provide such a cartridge heater (1) for a medium-voltage heater, which can be manufactured with less expenditure on the materials required for its production while maintaining the same long-term reliable and safe operation of the medium-voltage heater, it is proposed that the cartridge heater (1) has a core insulation (6) arranged between the return conductor (4) centered in the cartridge heater (1) and the heating conductor (2) surrounding the return conductor (4), and a sheath insulation (7) arranged between the heating conductor (2) and the sheath tube (5) of the cartridge heater (1).
Need to check novelty before this filing date? Find Prior Art