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Superconducting switch for superconducting magnet system of superconducting maglev train

A technology of maglev train and superconducting switch, applied in the field of electromagnetic system

Inactive Publication Date: 2021-09-10
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the prior art, to provide a superconducting switch for superconducting magnet systems of superconducting maglev trains, to meet various complex service conditions of maglev train operation, to reduce train operating costs, and to improve train operation. Stability, solve the power supply problem of existing superconducting magnets and cryogenic systems in operation

Method used

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  • Superconducting switch for superconducting magnet system of superconducting maglev train
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  • Superconducting switch for superconducting magnet system of superconducting maglev train

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Embodiment 1

[0019] like Figure 1 to Figure 2 As shown, a superconducting switch for a superconducting magnet system of a superconducting maglev train includes a magnesium oxide substrate 1. The superconducting switch of the present invention is preferably a film structure, that is, at the front end of the magnesium oxide substrate 1 with good thermal conductivity The surface is coated with a superconducting tape YBCO film 2 with high-temperature superconducting function. This coating method can not only enhance the mechanical strength of the high-temperature superconducting film, but also realize rapid temperature transfer when the heating wire 4 on the back is heated, and complete the superconducting process. The function of opening and closing of the switch is realized; wherein the thickness of the superconducting strip material YBCO film 2 is preferably 300nm, and the superconducting strip material YBCO film 2 needs to be designed as a planar circuit serpentine with a gap on the front ...

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Abstract

The invention provides a superconducting switch for a superconducting magnet system of a superconducting maglev train. The superconducting switch comprises a magnesium oxide substrate, and is of a film type structure, wherein the front end face of the magnesium oxide substrate is plated with a superconducting strip YBCO film, the superconducting strip YBCO film is designed to be a snake-shaped wire with gaps on the front end face of the magnesium oxide substrate, a layer of gold foil is plated on the superconducting strip YBCO film positioned at the upper end and the lower end of the magnesium oxide substrate, and a heating wire in snake-shaped wiring is also wound on the rear end surface of the magnesium oxide substrate. According to the superconducting switch, closed-loop operation of the superconducting coil can be achieved, a long-time high-stability noiseless magnetic field is achieved, a vehicle-mounted power source for coil excitation can be omitted, the weight of a maglev train is reduced, the superconducting switch can be used in parallel with a low-temperature diode in the using process, effective safety protection of the superconducting switch is achieved, and the damage rate of the superconducting switch is reduced.

Description

technical field [0001] The invention relates to the technical field of electromagnetic systems, in particular to a superconducting switch used in a superconducting magnet system of a superconducting maglev train. Background technique [0002] The phenomenon of superconductivity was discovered in 1911, and it is widely used in the electromagnetic field because of its excellent characteristics such as zero resistance. However, due to the low critical temperature of superconductors, the application of superconductors is greatly limited; and as more and more The discovery of high critical temperature superconducting materials, especially the discovery of the second type of high-temperature superconducting material ReBCO, greatly reduces the low-temperature environment for superconducting applications, promotes the application range of superconducting, and makes the second type of high-temperature superconducting materials completely It has the basis for commercial application. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/00H01F6/06H01B12/00H01L39/16H01L39/02H10N60/30H10N60/80
CPCH01F6/00H01F6/06H01B12/00H10N60/80H10N60/30Y02E40/60
Inventor 郑金星邹春龙刘旭峰奚维斌刘菲李明
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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