Integrated track coil for superconducting electric suspension train and track beam structure thereof

CN121709364BActive Publication Date: 2026-06-09SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Filing Date
2026-02-14
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing superconducting electric levitation trains have complex track coil structures, resulting in low maintenance efficiency, high installation difficulty, and high manufacturing costs.

Method used

An integrated track coil structure is adopted, in which the zero flux coil and the propulsion coil are encapsulated in a coil box with epoxy resin. Bends are set at both ends of the propulsion coil so that it is on the same plane as the zero flux coil, simplifying the hierarchical structure. At the same time, the propulsion coil adopts a C-shaped design to reduce the volume and improve the load-bearing capacity.

Benefits of technology

The simplified hierarchical structure reduces the air gap between the propulsion coil and the superconducting magnet, improves electromagnetic performance and efficiency, reduces the amount of coil used and manufacturing costs, and enhances ease of maintenance.

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Abstract

The application discloses an integrated track coil for superconducting electric suspension trains and a track beam structure thereof, relates to the technical field of magnetic suspension, and solves the technical problems of low maintenance efficiency of the existing track coil and high manufacturing cost caused by the large amount of coils. The integrated track coil comprises a coil module, the coil module comprises a coil box, the coil box is installed on both sides of a track base, two groups of zero-flux coils are arranged in the coil box, and a propelling coil is provided with bending parts at both ends in the longitudinal direction, and the zero-flux coils are arranged between the bending parts. The application has the advantages of convenient maintenance, reduced amount of coils and manufacturing cost, and the like.
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Citation Information

Patent Citations

  • Nitrogen-fixing cryogenic high-temperature superconducting electric aerotrain

    CN209479439U

  • Ground coil device for maglev railway

    JP2003158013A