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Thermally-controlled superconducting switch

A technology of superconducting switch and switch, which is applied in thermal switch components, superconducting magnets/coils, magnetic objects, etc. It can solve the problems of complex winding process and achieve the effect of uniform heating, fast turn-on and turn-off

Active Publication Date: 2011-05-11
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a new thermally controlled superconducting switch for the shortcomings of the traditional thermally controlled superconducting switch.

Method used

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Examples

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Such as figure 1 As shown, the superconducting switch of the present invention includes a switch frame 1 , a superconducting coil 2 , a heater 3 and a heat insulating layer 4 . The switch frame 1 is a cylinder with flanges at both ends, made of insulating material with poor thermal conductivity, such as polytetrafluoroethylene, epoxy glass steel, bakelite and the like. The superconducting coil 2 is a non-inductive coil, the purpose of which is to eliminate its influence on the inductive reactance of the circuit. The wire used to wind the superconducting coil 2 is a copper-nickel-based superconducting wire with high resistivity or made of multiple copper-nickel-based superconducting wires. The stranded cable is formed to carry a large magnet closed-loop current. The inner and outer sides of the superconducting coil 2 are pasted with a h...

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Abstract

The invention provides a thermally-controlled superconducting switch, comprising a switch skeleton (1), superconducting coils (2), heaters (3) and an insulating layer (4); the superconducting switch skeleton (1) is made of insulating materials with poor heat conduction; the superconducting coils (2) are formed by winding superconducting lines with high resistivity in a nonconductive mode; the heater (3) comprises a dentoid stainless steel sheet and a polyimide film; the superconducting coils (2) and the heaters (3) are arranged at intervals; the heaters (3) are adhered to internal and external surfaces of each layer of superconducting coils (2); and the insulating layer (4) is arranged on the outer side of the heater (3) in the outermost layer. The superconducting switch is simple and easy to manufacture, has the advantages of high heating efficiency and the like, and is uniform and rapid in heating.

Description

technical field [0001] The invention relates to a superconducting switch, in particular to a heat-controlled superconducting switch. Background technique [0002] With niobium titanium (NbTi), niobium tritin (Nb 3 With the emergence of practical superconducting materials such as Sn), the application of superconducting magnets has developed rapidly. There are two basic modes of operation of superconducting magnets, namely power supply mode and closed-loop operation mode. In the power supply mode, the power supply of the superconducting magnet is a low-voltage and high-current regulated or steady-current power supply. In order to ensure the stable operation of the superconducting magnet, the ripple ratio of the power supply is generally required to be small, and it can be adjusted slowly and evenly. In particular, there should be no obvious jitter. This mode is suitable for working conditions where the running time is short, the stability of the magnetic field is not high, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H37/02H01H37/04H01F6/06
Inventor 崔春艳王秋良雷沅忠
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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