Grooved Modular Coils for Arbitrary-Shape Magnetic Chambers

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Solution Overview

Problem

Existing magnetic chambers are costly and time-consuming to construct, particularly when requiring complex magnetic field configurations, and there is a lack of efficient methods to confine magnetic fields within vessels of arbitrary shapes.

Innovation Solution

The development of modular coils with grooves that guide current flow to create a magnetic field, allowing for mechanical and electrical joining, and the use of superconducting materials like yttrium barium copper oxide or rare-earth barium copper oxide to form a magnetic chamber that can confine the magnetic field.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a full-sized toroidal fusion device is constructed, then fusion energy gain is achieved, but the device size and cost become prohibitively large

Engineering Contradiction:
Improvefusion energy gainVSAvoiddevice size
Core Design Contradiction:
PowerVSVolume of moving object

Solution Approach 1:

The patent divides the toroidal fusion device into modular segments that can be assembled together. The magnetic confinement system is segmented into multiple modular coils that can be independently manufactured and then assembled to form the complete toroidal structure, reducing the complexity and cost of building a full-sized device

Inventive Principle:
Principle #1Segmentation

2Reliability

If conventional non-modular coil designs are used, then magnetic confinement is achieved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvemagnetic confinementVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The coil system is divided into multiple identical or near-identical modular units. Each module can be manufactured using standardized processes, allowing for mass production and reduced manufacturing complexity. The modular design enables parallel manufacturing of multiple modules simultaneously

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular coil design creates universal components that can be used in different positions within the toroidal device. Each modular coil unit is designed to be interchangeable and can serve the same magnetic confinement function at any location in the torus, simplifying manufacturing and maintenance

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Duration of action of stationary object

If large toroidal devices are built, then fusion reactions are sustained, but construction time and resource allocation increase

Engineering Contradiction:
Improvefusion reaction sustainabilityVSAvoidconstruction time
Core Design Contradiction:
Duration of action of stationary objectVSLoss of time

Solution Approach 1:

The device is constructed from pre-fabricated modular segments that can be manufactured independently and assembled relatively quickly. This segmentation allows for parallel development and testing of individual modules before final assembly, significantly reducing the overall construction timeline

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Modular components are designed and pre-tested independently before being integrated into the complete device. This preliminary action allows for validation of individual modules in isolation, reducing the risk and time required for full-system commissioning and troubleshooting

Inventive Principle:
Principle #10Preliminary action

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

Enables the construction of magnetic chambers with arbitrary shapes at reduced cost and complexity, facilitating quick modifications and efficient magnetic field confinement using superconducting characteristics.

Implementation Method 1

A magnetic field is applied to a plasma contained within a reaction chamber

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

modular coils for generating said magnetic field

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP4505494B1Magnetic chamber and modular coils
Publication Date: 2026.04.15 RENAISSANCE FUSION
  • EP4505494B1 patent drawingFigure 1A~1B
  • EP4505494B1 patent drawingFigure 1C
  • EP4505494B1 patent drawingFigure 2A~2B

AI summary

The present disclosure relates to an assembly comprising a plurality of modular coils (100a, 100b; 401) mechanically and electrically joined together, wherein each modular coil comprises a groove (110a, 110b) separating the modular coil into at least two different electrically conducting regions.