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High temperature superconducting double-disk coil skeleton

A double-cake coil, high-temperature superconducting technology, applied in superconducting magnets/coils, magnetic objects, electrical components, etc., can solve the problems of detachment of windings and FRP skeleton, poor thermal conductivity of FRP, thermal stability effects, etc., to avoid High thermal shrinkage, reduced eddy current loss, and the effect of overcoming prestress

Inactive Publication Date: 2005-12-14
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

Due to the difference in shrinkage between the skeleton and the winding, the winding will loosen at low temperature, and even the winding will be separated from the FRP skeleton
More importantly, the poor thermal conductivity of FRP has a great influence on the thermal stability of magnets, especially the thermal stability of AC magnets

Method used

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  • High temperature superconducting double-disk coil skeleton
  • High temperature superconducting double-disk coil skeleton
  • High temperature superconducting double-disk coil skeleton

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Experimental program
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as Figure 1A As shown, the copper skeleton 1 is the main body of the double-cake coil bobbin. Its upper and lower ends have inner flanges and outer flanges respectively. The outer diameter of the inner flange is slightly smaller than the inner diameter of the outer flange, and there is a certain positive and negative tolerance. Cooperate; there is a 1-3 mm cut on the ring-shaped double pie coil copper frame 1 along its axial direction, so that the copper frame 1 becomes an open loop. The size of FRP vortex-extinguishing pin 2 is equal to or slightly larger than the cuboid of the copper frame 1 cutout, and its height is equal to the copper frame annulus height h (not including the height of the inner flange). Such as Figure 1A As shown in B and B, the vortex-extinguishing pin 2 is embedded in the cutout of the copper frame 1 to ens...

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Abstract

The high temperature superconductive double-disc coil skeleton includes double-disc coil copper skeleton, eddy eliminating GRP pin, epoxy resin backing plate, irregular insulating polyimide film and other parts. It features the double-disc coil copper skeleton, which has ends with inner and outer flanges and 1-3 mm width axial cut, skeleton of red copper or yellow brass with excellent heat conducting effect and low temperature shrinkage near that of the coil winding. Of the present invention, the eddy eliminating GRP pin lowers the eddy loss by over 98 %, and the epoxy resin backing plate avoids the damage on the superconductive belt of the 'step' between the superconductive belt and the skeleton ring in the transition part. The present invention has satisfactory experimental use effect obtained.

Description

technical field [0001] The invention relates to a high-temperature superconducting double-cake coil, in particular to a high-temperature superconducting double-cake coil skeleton. Background technique [0002] High-temperature superconducting magnets have the advantages of high stability, high current density and low operating cost, and have broad prospects in the application of superconducting electricity. Many countries are competing to carry out relevant research and development work, among which the high-temperature superconducting double cake coil skeleton is one of the key technologies of research and development. [0003] Conductors that can be used to wind high-temperature superconducting magnets include bismuth-based silver-coated strips (Bi-2223 / Ag) that have been commercially produced and YBCO-coated high-temperature superconducting strips that are currently under development. For material ceramic materials, bending with a large curvature will lead to serious deg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/06
Inventor 张京业王子凯张东林良真肖立业
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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