High-temperature superconductive lead wire

A high-temperature superconducting, current lead technology, applied in superconducting magnets/coils, circuits, electrical components, etc., to achieve the effects of improving work stability, easy standardization of industrial production, and simple structure

Active Publication Date: 2008-07-16
INNOVA SUPERCONDUCTOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The elastic skeleton supports and position

Method used

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  • High-temperature superconductive lead wire
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  • High-temperature superconductive lead wire

Examples

Experimental program
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Effect test

Embodiment 1

[0021] As shown in Figure 2, the high-temperature superconducting current leads are welded together by a room temperature terminal 1, a heat exchanger 2, a high-temperature superconducting section, and a connecting wire 3, wherein the high-temperature superconducting section is composed of a high-temperature superconducting element 4 and two Composed of copper terminals 5, wherein the superconducting element includes 3 high-temperature superconducting wires 6 with superconducting properties and 2 stainless steel thin plates 7 with certain elasticity as shown in Figure 3, which are welded side by side on the copper terminals 5 at both ends, When the width of two stainless steel thin plates is 6cm, the length is the same as 6cm, and the thickness is 10mm, when the bending strain of the entire high-temperature superconducting section is within 0.5%, the critical current of the high-temperature superconducting wire is not lower than when the wire is not under strain 95% of the crit...

Embodiment 2

[0023] As shown in Figure 2, the high-temperature superconducting current lead is composed of a room temperature terminal 1, a heat exchanger 2, a high-temperature superconducting section and a connecting wire 3, wherein the high-temperature superconducting section part consists of a high-temperature superconducting element 4 and two copper terminals 5 components, wherein the superconducting element includes three high-temperature superconducting wires 6 with superconducting properties and a stainless steel sheet 9 with certain elasticity as shown in Figure 4, the width surfaces of the high-temperature superconducting wires are parallel to each other, and the stainless steel sheet When the thickness is 0.005mm, the high-temperature superconducting wire is welded to the stainless steel sheet, the outer sleeve of the current lead is a bellows 8, and when the bending strain of the entire high-temperature superconducting section is within 0.5%, the critical current of the high-tempe...

Embodiment 3

[0025] As shown in Figure 4, the superconducting section of the high-temperature superconducting current lead is composed of a high-temperature superconducting element and two copper terminals 5, and the superconducting element includes three high-temperature superconducting wires 6 with superconducting properties and one with Certain elastic epoxy resin 9, the width surfaces of the high-temperature superconducting wires are parallel to each other, the thickness of the epoxy resin plate is 1mm, the high-temperature superconducting wires and the epoxy resin are bonded with epoxy adhesive, and the outer sleeve of the current lead For the bellows 8, when the bending strain of the entire high-temperature superconducting section is within 0.5%, the critical current of the high-temperature superconducting wire is not lower than 95% of the critical current when the wire is not subjected to strain. The heat exchanger part of the high-temperature superconducting current lead uses a gold...

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Abstract

The invention relates to a current lead for a high temperature super conducting device, comprising a high temperature super conduction segment and a heat exchanger, wherein the high temperature super conduction segment consists of at least one super conducting element and two end heads, the super conducting element comprises at least one high temperature super conducting wire with super conducting capability and at least one elastic skeleton, when the super conducting element comprises more than two high temperature super conducting wires with super conducting capability, the width surfaces of wires are in parallel; when the bending strain of the whole high temperature super conduction segment is less than 0.5 percent, the critical current of the high temperature super conducting wire is no less than 95 percent of the critical current of the wire which does not receive the strain; by the method, the high temperature super conduction current lead can be bent in a certain range, thereby the invention is more flexible in practical use and more easily realizes the standardizing industrial production.

Description

technical field [0001] The present invention relates to current leads for high temperature superconducting devices. Background technique [0002] Practical superconducting devices need to work under extremely low temperature conditions, and the power supply is generally at room temperature, so it needs to be powered by the room temperature power supply through the current lead. The current lead will introduce heat leakage and become the main heat source of the low temperature system, resulting in a decrease in system operation stability and an increase in operating costs. In order to solve this problem, high-temperature superconducting materials are generally used to make current leads at present. The reason is that after the current leads made of high-temperature superconducting materials enter the superconducting state, the DC resistance is zero, eliminating Joule heat; on the other hand , the thermal conductivity of high-temperature superconducting tape is much lower tha...

Claims

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Application Information

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IPC IPC(8): H01F6/06
Inventor 张宏杰
Owner INNOVA SUPERCONDUCTOR TECH
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