Superconducting switch and superconducting magnet device thereof

By introducing dynamic and static heat-conducting components into the superconducting switch, and using heating coils and driving components to control the contact between the dynamic heat-conducting component and the coil frame, the problem of low switching efficiency in liquid helium-free refrigerated superconducting magnet devices is solved, achieving rapid state switching and efficient heat dissipation.

CN116344149BActive Publication Date: 2026-05-26上海电气控股集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海电气控股集团有限公司
Filing Date
2023-03-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In superconducting magnet devices without liquid helium cooling, the switching efficiency of the superconducting switch between the superconducting state and the desuperconducting state is low.

Method used

The superconducting switch design incorporates both dynamic and static heat-conducting components. It rapidly changes the temperature of the superconducting coil by heating the coil and uses a drive unit to control the dynamic heat-conducting component to contact or separate from the coil frame, thereby increasing the heat dissipation path and improving switching efficiency.

Benefits of technology

This technology enables rapid switching of the superconducting switch between the superconducting state and the quenching state, improving switching efficiency, reducing the thermal load on the cooling components, and reducing dependence on liquid helium.

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Abstract

This invention provides a superconducting switch and a superconducting magnet device having the same. The superconducting switch includes a housing, a switch body, and a heat-conducting component disposed within the housing. The switch body includes a coil frame, a first superconducting coil, and a heating coil. The coil frame is made of a heat-conducting material. The first superconducting coil is sleeved on the coil frame, and an insulating layer is disposed between the coil frame and the first superconducting coil. The heating coil is disposed on the first superconducting coil and / or the coil frame. The heat-conducting component includes a dynamic heat-conducting element, a static heat-conducting element, and a driving element. The driving element is drivenly connected to the dynamic heat-conducting element to drive the dynamic heat-conducting element to contact or separate from the coil frame. The static heat-conducting element is in contact with the coil frame. Both the dynamic and static heat-conducting elements are connected to a cooling element. The technical solution provided by this application can solve the problem of low switching efficiency between the on and off states of superconducting switches in superconducting magnet devices using liquid helium-free cooling in related technologies.
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