Superconducting Magnet Assembly with Layered Support
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Solution Overview
Problem
Conventional superconducting magnet assemblies are complex and bulky due to the need for mechanical support arrangements to manage stresses and strains from magnetic forces, which can lead to coil damage and quenching.
Innovation Solution
A superconducting magnet assembly with a bobbin and superconducting coil package that includes alternating layers of supporting member layers and thermal conduction layers, designed to distribute electromagnetic forces and maintain low temperatures effectively, using materials like fiber-glass for supporting members and high thermal conductivity materials for heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional mechanical support arrangements are used to secure coils and bear stresses, then coil stability is improved, but device complexity and bulk increase
Solution Approach 1:
The patent combines multiple functions into the bobbin structure: it serves as both the mounting platform for the superconducting coils and the primary mechanical support for bearing electromagnetic forces. The bobbin integrates coil securing features, stress-bearing capacity, and thermal conduction pathways, eliminating the need for separate mechanical support arrangements and reducing overall assembly complexity.
Solution Approach 2:
The bobbin is designed as a multi-functional component that simultaneously performs mechanical support, coil positioning, stress distribution, and thermal conduction. This universal component replaces multiple specialized parts, simplifying the assembly while maintaining coil stability and stress management capabilities.
2Reliability
If mechanical support arrangements are added to bear stresses on coils, then coil protection is improved, but assembly bulk and weight increase
Solution Approach 1:
The bobbin is constructed from composite materials that provide high strength-to-weight ratio, enabling it to bear electromagnetic forces and protect coils without adding excessive weight. The material composition allows the single component to fulfill mechanical support functions that previously required heavier, more substantial support structures.
3Temperature
If thermal conduction layers are added between coil layers, then heat management is improved, but manufacturing complexity increases
Solution Approach 1:
The thermal conduction layers are integrated directly into the bobbin structure during manufacturing, combining thermal management functionality with the primary support structure. This integration approach eliminates separate thermal management components and simplifies the manufacturing process while ensuring effective heat conduction from the superconducting coils.
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 design simplifies the assembly, reduces stress and strain on the coils, prevents quenching, and enhances the magnetic field uniformity by distributing electromagnetic forces and managing heat efficiently, thereby improving the reliability and performance of the superconducting magnet.
Implementation Method 1
a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer
Implementation Method 2
superconducting coils conducting electricity without resistance as long as the magnets are maintained at a suitably low temperature, which is referred to as 'superconducting temperature' hereinafter
Implementation Method 3
mechanical support arrangements are needed for securing the coils in place, and for bearing strains and stresses on the coils which are generated by the magnetic forces
Data Source
AI summary
A superconducting magnet assembly includes a bobbin comprising a central bore along a longitudinal direction, and a superconducting coil package wound on the bobbin. The superconducting coil package includes a plurality of superconducting coil layers wound on the bobbin, a plurality of supporting member layers, each of the supporting member layers being between a corresponding two adjacent superconducting coil layers, and a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer.