Current down-lead structure of superconducting magnetic energy storage

A current lead, superconducting energy storage technology, applied in superconducting magnets/coils, the usage of superconducting elements, superconducting devices, etc. The effect of thermal paths

Inactive Publication Date: 2006-02-22
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the straight rod current lead structure is simple in design, it is not conducive to optimizing heat leakage and miniaturization of superconducting devices

Method used

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  • Current down-lead structure of superconducting magnetic energy storage

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Embodiment Construction

[0029] The present invention proposes a new type of current lead wire structure of a superconducting energy storage magnet. The part near the high temperature end uses a straight rod type copper current lead wire, while the part near the low temperature end is a high temperature superconducting current lead wire with a double helix structure. In the limited space, try to increase the heat transfer path to reduce the heat leakage.

[0030] Another feature of the current lead wire structure of the superconducting energy storage magnet of the present invention is that the joint between the copper lead wire and the heat conduction plate uses insulating and heat-conducting beryllium oxide, and the heat is transferred from the heat conduction plate through the primary cold head of the refrigerator.

[0031] The superconducting energy storage magnet coil needs to work in the liquid helium temperature region of about 4.2K, and it is connected to the power supply at room temperature thr...

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Abstract

Disclosed a current lead wire of superconducting energy storage magnetic coil, belongs to technique field of the structure of current lead wire in superconducting device. The character comprises: the part near the elevated temperature end uses straight-rod copper current lead wire, while the part near low temperature end use elevated temperature superconduction current lead wire in double helix structure; said straight-rod copper current lead wire arranged on the upper and lower ends of heat conducting table is fixed by two connecters and it is through the heat conducting table, welded with elevated temperature superconducting current lead wire, while the connecter is formed by the adiabatic beryllia block sheathing said straight copper current lead wire and the copper cap nut for fixing the beryllia. The invention can at most increase the heat diffusion path in effective space, to decrease the leakage of heat.

Description

technical field [0001] The invention relates to the technical field of a current lead structure of a superconducting energy storage device. Background technique [0002] The current lead of the superconducting energy storage magnet is an intermediate current-carrying device that connects the current from the power supply terminal of the room temperature environment to the superconducting magnet thermostat. The current lead of the superconducting energy storage magnet is designed to minimize the Joule heat generated by the heat conduction from the high temperature end to the low temperature end and the current flowing through the current lead. At present, high-temperature superconducting energy storage magnets mostly use straight-rod copper current leads; low-temperature superconducting energy-storage magnets use straight-rod copper current leads and high-temperature superconducting material leads. Although the straight rod current lead structure is simple in design, it is n...

Claims

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Application Information

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IPC IPC(8): H01F6/00H01B12/00
CPCY02E40/64Y02E40/60
Inventor 蒋晓华何业冶刘秀成程志光
Owner TSINGHUA UNIV
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