Superconducting coil

A technology of superconducting coils and superconducting wires, applied in superconducting magnets/coils, magnetic objects, electrical components, etc., can solve problems such as degradation of superconducting characteristics, and achieve the effect of improving stability and preventing degradation

Active Publication Date: 2012-05-23
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, unfortunately, impregnated coils of superconducting tape wire can degrade the superconducting properties during cooling operations

Method used

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  • Superconducting coil
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Examples

Experimental program
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Effect test

no. 1 example

[0056] The following will refer to Figure 6 ( Figure 6A and 6B ) describes a superconducting coil according to a first embodiment of the present invention.

[0057] Referring to FIG. 6 , superconducting coil 10 is formed by, for example, disposing superconducting coil portion 14 on the outer surface of FRP core 19 . The superconducting coil portion 14 has an outer (outermost) diameter of 400 mm and an inner (innermost) diameter of 100 mm. The FRP core 19 has an outer diameter of 100 mm and an inner diameter of 90 mm, and includes a linear portion with a length of 150 mm. Figure 6A and 6B An illustrated example is a case where the width dimension of the superconducting coil 10 is an oval shape. In the case of oval shapes, the length dimensions can be compared with each other.

[0058] The superconducting coil portion 14 includes concentric three-coil layer portions (areas) which are coplanar with each other or arranged in a flat plate form. The three-coil layer part is ...

no. 2 example

[0069] Below, will refer to Figure 7 A superconducting coil according to a second embodiment of the present invention is described, wherein the same configurations (parts or elements) as in the first embodiment are denoted by the same reference numerals and explanations thereof are omitted.

[0070] exist Figure 7 In this example of Figure 6A and 6B 750 turns of the composite tape 11 were wound as in the superconducting coil 10 of the second embodiment to form the superconducting coil 20 of the second embodiment. Except that the FRP tape 23 is inserted between the outer surface of the composite tape 11 at the 125th turn of the superconducting coil part 14 and the inner surface of the composite tape 11 at the 126th turn and between the outer surface of the composite tape 11 at the 375th turn and the inner surface of the composite tape 11 at the 375th turn. Outside between the inner surfaces of the composite tape 11 at the 376th turn, Figure 7 The superconducting coil 20...

no. 3 example

[0076] The following will refer to Figure 8 A superconducting coil according to a third embodiment of the present invention is described, wherein the same configurations as those in the first and second embodiments are denoted by the same reference numerals and explanations thereof are omitted.

[0077] In this example, the superconducting coil 30 of the third embodiment was formed by winding the composite tape 11 for 750 turns as in the superconducting coil 10 in FIG. 6 . Except that the cooling / insulating tape 33 is inserted between the outer surface of the composite tape 11 at the 125th turn of the superconducting coil portion 14 and the inner surface of the composite tape 11 at the 126th turn and outside the composite tape 11 at the 375th turn. surface and the inner surface of the composite tape 11 at the 376th turn, Figure 8 The superconducting coil 30 is the same as the superconducting coil 10 of the first embodiment.

[0078] Such as Figure 9 As shown in , the coo...

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Abstract

A superconducting coil 40 comprises a plurality of superconducting coil layer portions 43a, 43b, 43c which are formed by winding a thin-film superconducting wire and an insulating material into a multiple layer structure, wherein the coil layer portions 43a, 43b, 43c are adjacent to each other at boundary portions 45 having adhesive forces that are less than those of other portions of the coil 40. The coil 40 may be a non-circular shape such as: racetrack, saddle, ellipse, oval or rectangle. The coil portions 43a, 43b, 43c may be arranged to have an outer to inner diameter ratio of less than 3.1. The boundary portions 45 may be non-bonded or involve an insulating material subjected to a mould release treatment. The release agents involved may be fluorocarbon tape, paraffin, grease and / or silicon oil. A cooling member or plate, subjected to an insulating treatment, may be used in the boundary potions 45. The coil 40 may include a fibre reinforced plastic core 19. The coil 40 arrangement may reduce the peeling forces experienced by the thin-film superconductive wires such that there is less coil degradation and there is improved stability of the coil performance.

Description

technical field [0001] The present invention relates to superconducting coils, and more particularly, to non-circular superconducting coils composed of thin film superconducting wires wound concentrically around a magnetic core in a multilayer structure, i.e. racetrack shape, saddle shape, oval shape , oval, and rectangular to reduce the peeling force in superconducting coils with higher stability. Background technique [0002] With the advancement and development of superconducting techniques, systems or devices for diagnostics such as Magnetic Resonance Imaging (MRI), Superconducting Magnetic Energy Storage (SMES) and crystal pulling have actually been used. In these systems or devices, superconducting tape-like wires of laminated parts are wound into superconducting coils for practical use, and generally, impregnated coils formed by resin impregnation are used in consideration of cooling and ease of handling. [0003] However, in the dipped coil, due to the anisotropy of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F6/06H01F6/04
CPCH01F6/06
Inventor 宫崎宽史岩井贞宪小柳圭户坂泰造田崎贤司浦田昌身井冈茂石井祐介小野通隆
Owner KK TOSHIBA
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