HTS Electromagnet Coil Assembly With Angled Power Taps

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current methods for manufacturing high-temperature superconducting (HTS) electromagnet coil assemblies are not suitable for large-scale, cost-effective production, and existing connections are not robust or reliable for mass production.

Innovation Solution

The electromagnet coil assembly features a core with a winding made from HTS tape, where power taps are connected to the winding at an angle and made from the same HTS material, providing a robust and reliable electrical connection, and the winding configuration includes multiple turns with specific tension differences to enhance mechanical stability and quench detection capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power taps are connected using traditional soldered connections to copper busbars, then electrical connection is achieved, but the connection is not robust or reliable for mass production

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidmanufacturability for mass production
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The connection method is changed from traditional soldered copper busbars to a mechanical connection system where power taps are connected to the HTS tape winding at an angle (specifically 90 degrees). This parameter change in connection geometry and material configuration provides both robust mechanical strength and reliable electrical contact, enabling mass production while maintaining connection reliability.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses a composite connection structure combining HTS tape material with mechanical fastening elements. The power taps are made from the same HTS material as the winding and connected through a mechanical interface that ensures both electrical conductivity and mechanical robustness, suitable for automated manufacturing processes.

Inventive Principle:
Principle #40Composite materials

2Reliability

If power taps are connected perpendicular to the HTS tape winding plane, then contact surface is enlarged and connection reliability is improved, but device complexity increases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidconnection structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The power taps are connected at a 90-degree angle to the HTS tape winding plane, creating a perpendicular connection geometry. This angular configuration maximizes the contact surface area between the power tap and the winding, ensuring reliable electrical connection while maintaining a simple and manufacturable structure.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Reliability

If multiple power taps are made from the same HTS tape element, then electromagnetic properties are enhanced, but manufacturing complexity increases

Engineering Contradiction:
Improveelectromagnetic property consistencyVSAvoidmanufacturing process simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

Multiple power taps are formed from the same continuous HTS tape element used for the winding itself. This merging of materials ensures consistent electromagnetic properties and superconducting characteristics across all connection points. The tape is configured during the winding process to create both the coil winding and the power taps from a single material source, maintaining manufacturing simplicity.

Inventive Principle:
Principle #5Merging (Combining)

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

This approach enables mass-manufacturing of HTS electromagnet coil assemblies with improved mechanical stability and reliable electrical connections, minimizing exposure to electromagnetic forces and allowing for effective quench detection, thus ensuring robust and efficient operation.

Implementation Method 1

a winding constituting the coil being wound in a plurality of turns around said core; wherein said winding is being formed as a tape element comprising a high-temperature superconducting, HTS, material

Methodology Applied
Scientific EffectSuperconductivity: Superconductivity

Implementation Method 2

an electromagnet coil assembly in particular an electromagnet coil assembly at least comprising a core; a winding constituting the coil being wound in a plurality of turns around said core

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP4143860B1An electromagnet coil assembly
Publication Date: 2024.12.11 VDL ENABLING TECH GRP EINDHOVEN BV
  • EP4143860B1 patent drawingFigure 1a
  • EP4143860B1 patent drawingFigure 1b
  • EP4143860B1 patent drawingFigure 2a

AI summary

The invention relates to an electromagnet coil assembly in particular an electromagnet coil assembly at least comprising a core; a winding constituting the coil being wound in a plurality of turns around said core; and multiple power taps for electrically connecting the winding to an external power circuit. Most electromagnetic coils implementing HTS materials are wound for academic purposes, which are generally hand-wound. Any coil needs power leads or power taps of some sort. However, in academics applications, coils are usually "one-offs" and not much time is invested in the manufacturability on a large scale and quantity basis. It is thus an object of the present invention to provide an electromagnet coil assembly implementing HTS materials, which coil assembly can be mass-manufactured in a reliable, robust and cost-effective manner.