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A current lead for magnet excitation of high-temperature superconducting maglev trains

A technology of maglev trains and current leads, which is applied to superconducting magnets/coils, magnetic objects, circuits, etc., can solve the problems of bringing weight, the excitation effect of the magnetic flux pump is not as good as that of using lead wires, and increasing the complexity of the refrigeration chamber. Achieve high excitation efficiency, low thermal load, and increased robustness

Active Publication Date: 2021-06-22
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this avoids the heat load caused by the lead wires, it increases the complexity of the cooling chamber and brings additional weight
At the same time, the excitation effect of the flux pump is not as good as that of the lead wire excitation

Method used

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  • A current lead for magnet excitation of high-temperature superconducting maglev trains
  • A current lead for magnet excitation of high-temperature superconducting maglev trains
  • A current lead for magnet excitation of high-temperature superconducting maglev trains

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Embodiment Construction

[0041] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0042] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0043] Such as figure 1 As shown, the device is composed of lead wire main body 1, heat anchor 2, liquid nitrogen tank 3, lead wir...

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Abstract

The invention discloses a current lead wire device for magnet excitation of a high-temperature superconducting maglev train and a method for using the same, relating to the technical field of high-temperature superconductivity, including a lead wire main body, an auxiliary refrigeration device, a lead wire separation device, a lead wire spiral part, and a flange. The lead wire body includes a lead wire room temperature end and a lead wire low temperature end, the auxiliary refrigeration device is used for cooling the lead wire room temperature end, and the lead wire main body is in detachable contact with the lead wire separation device. The invention avoids the heat load brought by the lead wires to the low-temperature environment when the magnet does not need to be excited, greatly reduces the requirements of the lead wires on the low-temperature refrigerator, and reduces the demand on the vehicle-mounted power supply of the maglev train. The design structure is simple, making the whole device robust The stability is greatly increased, and it can work normally under the vibration during the operation of the maglev train.

Description

technical field [0001] The invention relates to the technical field of high-temperature superconductivity, in particular to a current lead device for magnet excitation of a high-temperature superconducting maglev train and a method for using the same. Background technique [0002] The phenomenon of superconductivity was discovered in 1911, and due to its excellent properties such as zero resistance, it quickly attracted the attention of researchers all over the world. However, due to the relatively low critical temperature of superconductors, usually 0-10K (low-temperature superconductors), the application of superconductors is greatly limited. Therefore, many scientists are committed to finding superconducting materials with higher critical temperatures. As more and more superconducting materials with high critical temperature have been discovered, the development of superconductors has entered the era of high-temperature superconductivity. The critical temperature of supe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F6/06H01F6/04
Inventor 黄振董方亮郝鲁宁
Owner SHANGHAI JIAO TONG UNIV
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