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A device for improving excitation efficiency of superconducting closed coil

A closed coil, superconducting coil technology, applied in superconducting magnets/coils, usage of superconducting elements, devices that can switch between superconducting and normal conducting states, etc., can solve problems such as complex process and difficult joints

Active Publication Date: 2022-07-08
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sapphire-based REBCO superconducting switch process is relatively complicated and it is difficult to make joints with some superconducting coils

Method used

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  • A device for improving excitation efficiency of superconducting closed coil
  • A device for improving excitation efficiency of superconducting closed coil
  • A device for improving excitation efficiency of superconducting closed coil

Examples

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Embodiment Construction

[0034] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make its 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.

[0035] In the drawings, structurally identical components are denoted by the same numerals, and structurally or functionally similar components are denoted by like numerals throughout. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thicknesses of components are appropriately exaggerated in some places in the drawings.

[0036] like figure 1 As shown in the figure, it is a working principle diagram of using the superconducting continu...

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Abstract

The invention discloses a device for improving the excitation efficiency of a superconducting closed coil, which belongs to the field of excitation of a superconducting closed coil. The device includes a section of superconducting tape connected to an excitation superconducting coil, the superconducting tape includes a conductive layer, a superconducting layer and a substrate, and the conductive layer is configured to have a patterned structure that blocks current flow. The conductive layer is a single layer or multiple layers. The material of the conductive layer is copper and / or silver. The material of the superconducting layer is REBCO. The device also includes a buffer layer, which is a dielectric material and is basically insulating. The pattern structure includes geometric shapes, preferably grooves. The grooves are configured to be in the plane of the conductive layer, the length of the grooves being the same or less than the width of the substrate. The grooves are arranged in the plane of the conductive layer, the depth of the grooves being the same or less than the thickness of the conductive layer. The device excites the closed superconducting coil through an external power supply or a magnetic flux pump. The surface of the device is covered with insulating or weakly conductive material. The device of the invention improves the excitation efficiency of the superconducting closed coil in a stable and efficient manner.

Description

technical field [0001] The invention relates to the field of excitation of superconducting closed coils, in particular to a device for improving excitation efficiency of superconducting closed coils. Background technique [0002] Superconducting closed coil excitation technology is one of the key technologies in the application of superconducting magnets, and is used in magnetic resonance imaging, nuclear magnetic resonance spectroscopy, high-speed superconducting magnetic levitation and other fields. Ideally, the normal state resistance of the continuous current switch should be infinite, but in reality, the continuous current switch is divided into a normal state (or a resistance state) or a non-resistance state when it is closed. universal. In normal state, the resistance should be large enough, and the current flowing through the continuous current switch should not be greater than 10% of the coil operating current. The resistance and the current flowing through it wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F6/06H01F6/00H01L39/16H10N60/20H10N60/30
CPCH01F6/06H01F6/00H10N60/30Y02E40/60
Inventor 黄振
Owner SHANGHAI JIAOTONG UNIV
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