JP2004319777A - Superconducting coil and superconducting magnet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the damage of a superconducting wire connected to an electrode by the deformation of a coil main body at the time of energizing regarding a superconducting coil and a superconducting magnet device for which a part of the superconducting wire forming the coil main body is connected to the electrode. <P>SOLUTION: A resin member 61 is formed at the opening part of a flange 60, an entrance electrode 62 for which the superconducting wire 69 is connected to a copper electrode 70 is fixed to the resin member 61 with a stud bolt, and an electrical joining member 56 provided with a flexible part 56A is formed at the flange 60 in a state capable of electrical connection with the entrance electrode 62. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a superconducting coil and a superconducting magnet device, and more particularly to a superconducting coil and a superconducting magnet device in which a part of a superconducting wire forming a coil body is connected to an electrode.
[0002]
[Prior art]
FIG. 1 is a schematic view of a conventional superconducting coil, FIG. 2 is an enlarged view of a region where an entrance electrode is formed, and FIG. 3 is an enlarged view of a region where an intermediate electrode is formed. The Y and Y directions shown in FIG. 1 indicate the axial direction of the superconducting coil 10. In FIG. 3, the same components as those in FIG. 2 are denoted by the same reference numerals. As shown in FIG. 1, the superconducting coil 10 includes a winding frame 11, a coil body 12, an inlet electrode 13, an outlet electrode 14, and an intermediate electrode 15. The coil body 12 is constituted by a superconducting wire 19 wound around the winding frame 11. The entrance electrode 13, the exit electrode 14, and the intermediate electrode 15 have a configuration in which a superconducting wire 19 is connected to a copper electrode 17.
[0003]
As shown in FIG. 2, a superconducting wire 19, which is a winding start end, is connected to the entrance electrode 13 by a groove 21 </ b> A provided in the copper electrode 21 by soldering. The copper electrode 21 is formed integrally with the flange 16 of the winding frame 11 by a bolt 22, and a resin 18 is provided in an opening of the flange 16. In addition, the superconducting wire 19, which is the end of winding, is connected to the outlet electrode 14 in the groove 21 </ b> A of the copper electrode 21. The inlet electrode 13 and the outlet electrode 14 are for supplying a current to the coil body 12.
[0004]
As shown in FIG. 3, two superconducting wires 19 are connected to the intermediate electrode 15 by soldering in a groove 21 </ b> A provided in the copper electrode 21. The copper electrode 21 is formed integrally with the flange 16 of the winding frame 11 by a bolt 22, and a resin 18 is disposed in an opening of the flange 16 (for example, see Patent Document 1). The intermediate electrode 15 suppresses the internal voltage of the coil when it is quenched to prevent the coil from being broken.
[0005]
[Patent Document 1]
JP 2001-217118 A
[0006]
[Problems to be solved by the invention]
However, due to the hoop force generated when the coil body 12 is energized, the coil body 12 spreads in the X, X direction (the circumferential direction of the superconducting coil 10) shown in FIG. (Axial direction of the coil 10). The resin 18 is displaced by a force that causes the coil body 12 to shrink in the Y, Y directions (the axial direction of the superconducting coil 10). At this time, since there is almost no displacement in the winding frame 11, the positions of the entrance electrode 13, the exit electrode 14, and the intermediate electrode 15 are localized on the flange 16 of the winding frame 11 in FIG. The superconducting wire 19 is displaced together with the resin 18 below.
[0007]
Therefore, there is a problem that stress is concentrated on the superconducting wire 19 at the interface between the copper electrode 21 and the resin 18 and the superconducting wire 19 is damaged. Further, in the superconducting coil 10 having a large energy that can be stored and the superconducting coil 10 having a large size, the displacement of the coil body 12 is large, so that the superconducting wire 19 connected to the copper electrode 21 is greatly damaged, and the superconducting wire 19 is large. However, there was a problem that it was broken.
[0008]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a superconducting coil and a superconducting magnet device capable of preventing a superconducting wire connected to an electrode from being damaged by deformation of a coil main body when energized. And
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is characterized by taking the following means.
[0010]
The invention according to claim 1 includes a winding frame, a coil main body having a superconducting wire wound around the winding frame, an electrode to which the superconducting wire is connected, and an insulator disposed on the superconducting wire. The electrode is disposed on the insulator, the electrode, the superconducting coil characterized in that it is configured to move following the displacement of the insulator due to deformation of the coil body when energized, Solvable.
[0011]
According to the above invention, by disposing the electrode to which the superconducting wire is connected on the insulator, the electrode moves following the displacement of the insulator due to the deformation of the coil body during energization. The stress does not concentrate on the superconducting wire formed between the superconducting wires, thereby preventing the superconducting wire from being damaged.
[0012]
According to the second aspect of the present invention, the surface can be solved by the superconducting coil according to the first aspect, wherein an uneven surface is formed on a surface of the electrode that contacts the insulator.
[0013]
According to the above invention, by forming an uneven shape on the surface of the electrode that contacts the insulator, the contact area between the electrode and the insulator increases, the thermal conductivity improves, and the superconducting wire can be efficiently cooled. It can be carried out. Further, since the contact area increases, the adhesion between the electrode and the insulator can be improved.
[0014]
According to the third aspect of the present invention, the uneven shape includes a corrugated shape, a shape having a needle-like protrusion, and a shape having a comb-like protrusion. This can be solved by the superconducting coil described.
[0015]
According to the above invention, the surface of the electrode that contacts the insulator has a corrugated shape, a shape having needle-like protrusions, and a shape having comb-like protrusions. Can have a large contact area.
[0016]
According to a fourth aspect of the present invention, there is provided a superconducting coil according to any one of the first to third aspects, wherein the electrode is screwed to the insulator.
[0017]
According to the above invention, by screwing the electrode to the insulator, the electrode can be firmly fixed to the insulator, and the electrode moves following the displacement of the insulator due to the deformation of the coil body when energized. be able to.
[0018]
According to a fifth aspect of the present invention, the superconducting coil according to any one of claims 1 to 4, wherein an electrical connection member electrically connected to the moving electrode is provided on the winding frame. ,Solvable.
[0019]
According to the above-mentioned invention, by providing an electrical connection member electrically connected to the moving electrode on the bobbin, electrical connection can be made to the moving electrode.
[0020]
In the invention described in claim 6, the electrical connection member includes a first bonding portion bonded to the electrode, a second bonding portion bonded to the bobbin, the first bonding portion and the second bonding portion. The superconducting coil according to claim 5, further comprising a flexible portion formed between the first and second joints, the flexible portion being flexible as the electrode moves.
[0021]
According to the invention, by providing a flexible portion between the first joint portion and the second joint portion of the electrical connection member, the flexible portion being flexible with the movement of the electrode, the movable electrode and the first joint are provided. An electrical connection can be made with the joint.
[0022]
In the invention according to claim 7, the winding frame has a flange, a plurality of openings are formed in the flange, and the insulator provided in the plurality of openings includes the electrode. The superconducting coil according to any one of claims 1 to 6, wherein an inlet electrode, an outlet electrode, and an intermediate electrode to which the superconducting wire is connected are formed respectively.
[0023]
According to the above invention, a plurality of openings are formed in the flange of the bobbin, and an inlet electrode, an outlet electrode, and an intermediate electrode each having a superconducting wire connected to the electrode are formed on the insulator provided in the plurality of openings. By doing so, at the time of energization, the entrance electrode, the exit electrode, and the intermediate electrode move following the displacement of the insulator due to the deformation of the coil body, so that the superconducting wires connected to the entrance electrode, the exit electrode, and the intermediate electrode are damaged. Can be prevented.
[0024]
In the invention according to claim 8, a release agent is disposed between an axial surface of the bobbin formed in the opening and an insulator disposed in the opening. The problem can be solved by the superconducting coil according to any one of claims 1 to 7.
[0025]
According to the above invention, by disposing the mold release agent between the flange and the insulator that are in contact with the insulator formed in the opening, the insulator on which the electrodes are formed can be deformed when the power is supplied. Can be smoothly displaced in accordance with
[0026]
According to a ninth aspect of the present invention, the insulator is mixed with a powder of an inorganic material having no conductivity in a range of 0.1 to 30% with respect to the insulator. 8 can be solved by the superconducting coil described in any one of 8.
[0027]
According to the above invention, the thermal conductivity is improved by mixing the non-conductive inorganic material powder in the range of 0.1 to 30% with respect to the insulator, so that the coil body can be efficiently cooled. It can be carried out.
[0028]
According to the tenth aspect of the present invention, the superconducting coil according to the ninth aspect, wherein a particle diameter of the non-conductive inorganic material powder is in a range of 0.01 to 100 microns. Solvable.
[0029]
According to the above invention, by using a non-conductive inorganic material powder having a particle diameter in the range of 0.01 to 100 microns, the insulator in which the non-conductive inorganic material powder is mixed can be used. The thermal conductivity can be improved while maintaining the desired strength and adhesive ability.
[0030]
The invention according to claim 11 includes a winding frame, a coil body having a superconducting wire wound around the winding frame, an electrode to which the superconducting wire is connected, and an insulator disposed on the superconducting wire. And disposing the electrode on the bobbin, forming a space between the electrode and the insulator, and giving the superconducting wire slack so as to be located in the space. The problem can be solved by a superconducting coil.
[0031]
According to the above invention, the electrode is disposed on the bobbin, a space is formed between the electrode and the insulator, and the superconducting wire is slackened so as to be located in the space. When the insulator is displaced by the deformation of the superconductor, the superconducting wire connected to the electrode can have a slack in the space between the electrode and the insulator, so that the superconducting wire can be prevented from being damaged.
[0032]
According to a twelfth aspect of the present invention, there is provided a superconducting magnet device including the superconducting coil according to any one of the first to twelfth aspects.
[0033]
According to the above-described invention, it is possible to prevent the superconducting wire connected to the electrode from being damaged by the displacement of the insulator due to the deformation of the coil body during energization, and to prevent the superconducting coil from being damaged.
[0034]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
[0035]
(First embodiment)
FIG. 4 is a schematic diagram of a superconducting magnet device to which a superconducting coil according to a first embodiment of the present invention is applied. As shown in FIG. 4, the superconducting magnet device 30 generally includes a vacuum vessel 31, a GM (Guford McMahon) refrigerator 32, a heat shield member 37, a first-stage cooling unit 45, and a second-stage cooling unit 46. And a superconducting coil 50. The vacuum container 31 is generally constituted by a container main body 33 and a top plate 36. The top plate 36 is formed so as to cover the opening of the container body 33.
[0036]
A cylindrical space 35 is formed at the center of the vacuum vessel 31 by a cylindrical wall 34 and vertically penetrated in FIG. 4. This cylindrical space 35 is used as a high magnetic field space when energized. A GM refrigerator is formed on the top plate 36. In the vacuum vessel 31, a heat shield member 37 for shutting off heat is suspended by a support column 42 and a cold head 45B described later. A high-temperature side cooling stage 41 is formed above the heat shield member 37 in FIG. The cylindrical wall 38 formed at the center of the heat shield member 37 is formed with a gap interposed between the cylindrical wall 34.
[0037]
A first-stage cooling means 45 is formed below the GM refrigerator 32 in FIG. The first-stage cooling means 45 is roughly composed of a cylinder part 45A and a cold head part 45B. The cylinder portion 45A is formed integrally with the GM refrigerator 32 below the GM refrigerator 32 in FIG. A cold head 45B is formed below the cylinder 45A. The cold head portion 45B is fixed to the high-temperature side cooling stage 41 by bolts 48 via mounting flanges 47. The cold head 45B is for cooling the high-temperature side cooling stage 41 via the mounting flange 47.
[0038]
A second-stage cooling means 46 is formed below the cold head 45B in FIG. The second-stage cooling means 46 is roughly constituted by a cylinder part 46A and a cold head part 46B. The cylinder portion 46A is formed below the cold head portion 45B, and the cold head portion 46B is formed below the cold head portion 45B. The cold head portion 46B is fixed to the low-temperature side cooling stage 44 by a bolt 54 via a mounting flange 53. The cold head 46B is for cooling a superconducting coil 50 described later via the mounting flange 53 and the low-temperature cooling stage. A superconducting coil 50 is formed below the low-temperature side cooling stage 44.
Next, the superconducting coil 50 will be described with reference to FIGS. FIG. 5 is a perspective view of the superconducting coil of the first embodiment, and FIG. 6 is a perspective view of the bobbin. The surface 60B shown in FIG. 6 shows the surface of the bobbin 58 in the axial direction. As shown in FIG. 5, the superconducting coil 50 includes a winding frame 58, a coil body 59, an inlet electrode 63, an outlet electrode 62, intermediate electrodes 64 and 65, and an electrical connecting member 56. ing.
[0039]
The bobbin 58 includes a coil forming region 58B and a flange 60, and a cylindrical opening 58A that penetrates the bobbin 58 in the axial direction is formed at the center of the bobbin 58. Four openings 60 </ b> A are formed in the flange 60. The four openings 60 </ b> A are regions for connecting the copper electrode 70, which is an electrode, and a superconducting wire described later to form the entrance electrode 63, the exit electrode 62, and the intermediate electrodes 64 and 65. A resin member 61 is formed in the opening 60A. A release agent 57 is formed between the resin member 61 and the surface 60B. As the release agent 57, for example, a tetrafluoroethylene resin release agent, a silicon release agent, or the like can be used.
[0040]
In the resin member 61 formed in the four openings 60A, an entrance electrode 63, an exit electrode 62, and intermediate electrodes 64 and 65 are formed. The coil body 59 includes a superconducting wire wound around the coil forming region 58B of the winding frame 58, and a resin member 61 formed so as to cover the superconducting wire. This resin member 61 is a mixture of an epoxy resin as an insulator and a fine ceramic powder as an inorganic material having no conductivity. As the fine ceramic powder, those having a particle size in the range of 0.01 to 100 μm can be used. The particle size of 0.01 μm is a limit value of the manufacturing method, and if the particle size is larger than 100 μm, the strength of the resin member 61 decreases. The fine ceramic powder is preferably mixed with the epoxy resin as an insulator in a range of 0.1 to 30%.
[0041]
As described above, by forming the release agent 57 between the resin member 61 and the surface 60B, the entrance electrode 63, the exit electrode 62, and the intermediate electrodes 64 and 65 are formed when the superconducting wire is energized. The resin member 61 can be smoothly displaced in accordance with the deformation of the coil body 59. Further, by mixing fine ceramic powder having a particle size in the range of 0.01 to 100 microns within a range of 0.1 to 30% with respect to the epoxy resin, the resin member 61 is connected to the inlet electrode 63 and the outlet. Since the thermal conductivity is improved while maintaining the strength and the adhesive ability necessary for forming the electrode 62 and the intermediate electrodes 64 and 65, the coil body 59 can be efficiently cooled.
[0042]
Next, the inlet electrode 63, the outlet electrode 62, and the intermediate electrodes 64 and 65 will be described with reference to FIGS. FIG. 7 is a plan view of the superconducting coil shown in FIG. FIG. 8 is a cross-sectional view in the A1-A2 direction near the entrance electrode shown in FIG. 5, and FIG. 9 is a perspective view of the entrance electrode. The X and X directions shown in FIG. 8 indicate the circumferential direction of the superconducting coil 50, and the Y and Y directions indicate the axial direction of the superconducting coil 50. The difference between the entrance electrode 63, the exit electrode 62, and the intermediate electrodes 64 and 65 is which end of the superconducting wire is connected to the copper electrode 70. Therefore, in the present embodiment, the following description will be made mainly with reference to FIGS. The entrance electrode 62 has a configuration in which a superconducting wire 69 is connected to a copper electrode 70. A groove 70A is formed in the copper electrode 70, and a superconducting wire 69 is connected to the groove 70A by soldering. A corrugated shape, which is one of the uneven shapes, is formed on a surface 70B of the copper electrode 70 that contacts the resin member 61. As shown in FIG. 8, an insulating plate 68 is formed on the flange 60 in the X and X directions (the circumferential direction of the superconducting coil 50). The entrance electrode 62 is fixed to a resin member 61 formed in the opening 60A by a stud bolt 69.
[0043]
Thus, by making the shape of the surface 70B of the copper electrode 70 that contacts the resin member 61 into a corrugated shape, when the copper electrode 70 is fixed to the resin member 61, the contact area between the copper electrode 70 and the resin member 61 is reduced. As a result, the thermal conductivity to the resin member 61 is improved, and the resin member 61 and the superconducting wire 69 can be efficiently cooled. Further, since the contact area increases, the adhesion between the copper electrode 70 and the resin member 61 can be improved. The shape of the surface 70B may be any shape as long as it is uneven, and is not limited to a corrugated shape. Instead of the corrugated shape, for example, a shape having a needle-like protrusion or a shape having a comb-like protrusion may be provided on the surface 70B. With a shape having a needle-like protrusion or a shape having a comb-like protrusion, the contact area with the resin member 61 can be further increased. Further, by using the stud bolt 71, the entrance electrode 62 is firmly fixed to the resin member 61. As the material of the stud bolt 71, for example, stainless steel, aluminum nitride, zirconia, alumina, magnesia, or the like can be used.
[0044]
By forming the inlet electrode 62 on the resin member 61 as described above, the inlet electrode 62 moves following the displacement of the resin member 61 due to the deformation of the coil body 59 at the time of energization. The stress does not concentrate on the superconducting wire 69 between the two, and the damage of the superconducting wire 69 can be prevented. Note that the outlet electrode 63 and the intermediate electrodes 64 and 65 can be formed by a method similar to that of the inlet electrode 62.
[0045]
Next, the electrical bonding member 56 will be described with reference to FIGS. FIG. 10 is a perspective view of an electrical connecting member having a different shape from the electrical connecting member shown in FIG. In FIG. 10, the same components as those in FIG. 9 are denoted by the same reference numerals. As shown in FIG. 9, the electrical connection member 56 is fixed to the flange 60 by bolts 73 and is in contact with the copper electrode 70 in a state where electrical connection is possible. The first joining portion is formed by the contact between the electrical joining member 56 and the copper electrode 70, and the second joining portion is formed by the contact between the electrical joining member 56 and the flange 60. . A flexible portion 56 </ b> A is formed between the first joint portion and the second joint portion as the entrance electrode 62 moves due to deformation of the superconducting wire 69 when energized.
[0046]
As described above, by forming the electrical joining member 56 provided with the flexible portion 56 </ b> A on the flange 60, the flexible portion 56 </ b> A follows the inlet electrode 62 that moves due to the deformation of the coil body 59 at the time of energization. Therefore, electrical connection can be made at the first joint between the electric joint member 56 and the entrance electrode 62. Further, as the electric connecting member 56, an electric connecting member 74 provided with a flexible portion 74A as shown in FIG. 10 may be used, and the same effect as in the present embodiment can be obtained. Note that the electrical connection member only needs to form a flexible portion between the first connection portion and the second connection portion that is flexible as the entrance electrode 62 moves. The shape is not limited to the shape of the electrical connection members 56 and 74.
[0047]
(Second embodiment)
A superconducting coil according to a second embodiment will be described with reference to FIGS. FIG. 11 is a diagram showing an entrance electrode of the superconducting coil according to the second embodiment of the present invention, and FIG. 12 is a diagram showing an intermediate electrode of the superconducting coil according to the second embodiment. In FIG. 12, the same components as those in FIG. 11 are denoted by the same reference numerals. As shown in FIG. 11, the entrance electrode 85 is roughly constituted by a copper electrode 79 and a superconducting wire 81. Superconducting wire 81 is connected to groove 79A formed in copper electrode 79 by soldering. The copper electrode 79 is fixed to the flange 76 by a bolt 82.
[0048]
An insulating plate 76 is formed on the flange 76. The resin 78 serving as an insulator is provided in a state where a space 83 is formed between the resin 78 and the copper electrode 79. In this space 83, a superconducting wire 81 connected to copper electrode 79 is formed with a slack 81A. As shown in FIG. 12, the intermediate electrode 86 is formed in the space 87 with two superconducting wires 81 connected to the copper electrode 79 having slacks 81B and 81C.
[0049]
As described above, the spaces 83 and 87 are provided between the copper electrode 79 and the resin 78, and the superconducting wires 81 having the slack portions 81A to 81C are formed in the spaces 83 and 87. When the resin 78 is displaced due to the deformation of the superconducting wire 81, the superconducting wire 81 connected to the copper electrode 79 is slackened in the spaces 83 and 87, and the superconducting wire 81 can be prevented from being damaged. By configuring the superconducting magnet device using the superconducting coil of the first embodiment or the second embodiment described above, it is possible to prevent the superconducting wire connected to the copper electrode, which is an electrode, from being damaged, and the superconducting magnet device Can be prevented from being damaged.
[0050]
As described above, the preferred embodiments of the present invention have been described in detail, but the present invention is not limited to such specific embodiments, and various modifications may be made within the scope of the present invention described in the appended claims. Deformation and modification are possible.
[0051]
【The invention's effect】
According to the first aspect of the present invention, since the electrode moves following the displacement of the insulator due to the deformation of the coil body at the time of energization, stress concentrates on the superconducting wire formed between the electrode and the insulator. This prevents the superconducting wire from being damaged.
[0052]
According to the second aspect of the present invention, the contact area between the electrode and the insulator is increased, the thermal conductivity is improved, and the superconducting wire can be efficiently cooled. Further, since the contact area increases, the adhesion between the electrode and the insulator can be improved.
[0053]
According to the third aspect of the present invention, the surface of the electrode in contact with the insulator has a corrugated shape, a shape having needle-like protrusions, and a shape having comb-like protrusions. The contact area between the insulator and the insulator can be increased.
[0054]
According to the fourth aspect of the present invention, by screwing the electrode to the insulator, the electrode can be firmly fixed to the insulator, and the electrode follows the displacement of the insulator due to the deformation of the coil body during energization. You can move.
[0055]
According to the fifth aspect of the present invention, the electric connection member electrically connected to the moving electrode is provided on the bobbin, so that the moving electrode can be electrically connected.
[0056]
According to the sixth aspect of the present invention, the movable electrode is provided between the first joint and the second joint of the electrical connection member by providing a flexible portion that flexes with the movement of the electrode. An electrical connection can be made between the first junction and the first junction.
[0057]
According to the invention described in claim 7, the entrance electrode, the exit electrode, and the intermediate electrode move following the displacement of the insulator due to the deformation of the coil body when energized, so that they are connected to the entrance electrode, the exit electrode, and the intermediate electrode, respectively. Damage of the superconducting wire can be prevented.
[0058]
According to the invention described in claim 8, at the time of energization, the insulator on which the electrodes are formed can be smoothly displaced in accordance with the deformation of the coil body.
[0059]
According to the ninth aspect of the present invention, the heat conductivity is improved by mixing the non-conductive inorganic material powder within the range of 0.1 to 30% with respect to the insulator, so that the coil can be efficiently formed. The body can be cooled.
[0060]
According to the tenth aspect of the present invention, the non-conductive inorganic material powder is mixed by using the non-conductive inorganic material powder having a particle size in the range of 0.01 to 100 microns. The insulator can improve thermal conductivity while maintaining desired strength and adhesive ability.
[0061]
According to the eleventh aspect of the present invention, when the insulator is displaced due to the deformation of the coil body during energization, the superconducting wire connected to the electrode has slack in the space between the electrode and the insulator. Therefore, it is possible to prevent the superconducting wire from being damaged.
[0062]
According to the twelfth aspect of the invention, it is possible to prevent the superconducting wire connected to the electrode from being damaged by the displacement of the insulator due to the deformation of the coil main body during energization, thereby preventing the superconducting coil from being damaged.
[Brief description of the drawings]
FIG. 1 is a schematic view of a conventional superconducting coil.
FIG. 2 is an enlarged view of a region where an entrance electrode is formed.
FIG. 3 is an enlarged view of a region where an intermediate electrode is formed.
FIG. 4 is a schematic diagram of a superconducting magnet device to which a superconducting coil according to a first embodiment of the present invention is applied.
FIG. 5 is a perspective view of the superconducting coil of the first embodiment.
FIG. 6 is a perspective view of a bobbin.
FIG. 7 is a plan view of the superconducting coil shown in FIG.
FIG. 8 is a cross-sectional view in the A1-A2 direction near the entrance electrode shown in FIG. 5;
FIG. 9 is a perspective view of an entrance electrode.
FIG. 10 is a perspective view of an electrical connecting member having a different shape from the electrical connecting member shown in FIG. 9;
FIG. 11 is a view showing an inlet electrode of a superconducting coil according to a second embodiment of the present invention.
FIG. 12 is a view showing an intermediate electrode of the superconducting coil of the second embodiment.
[Explanation of symbols]
10,50 superconducting coil
11,58 reel
12, 59 Coil body
13, 62, 85 Inlet electrode
14, 63 Exit electrode
15, 64, 65, 86 Intermediate electrode
16, 60, 76 flange
17, 21, 70, 79 Copper electrode
18, 78 resin
19, 69, 81 Superconducting wire
21A, 70A, 79A Groove
22, 48, 54, 73, 82 bolts
24, 68, 77 insulating plate
30 Superconducting magnet device
31 Vacuum container body
32 refrigerator
34, 38 Cylindrical wall
35 cylindrical space
37 Heat shield member
41 High-temperature side cooling stage
42, 43 props
44 Low-temperature side cooling stage
45 First-stage cooling means
45A, 46A cylinder
45B, 46B Cold head
46 Second stage cooling means
47, 53 Mounting flange
56, 74 Electrical joining members
56A, 74A Flexible part
57 Release agent
58A cylindrical space
58B coil formation area
60A opening
60B, 70B surface
61 Resin member
71 stud bolt
83, 87 space
81A, 82A, 83A Loose section

Claims (12)

A bobbin,
A coil body in which a superconducting wire is wound around the winding frame;
An electrode to which the superconducting wire is connected;
And an insulator disposed on the superconducting wire,
Disposing the electrode on the insulator;
The superconducting coil is characterized in that the electrode is configured to move following the displacement of the insulator due to the deformation of the coil main body when energized. 2. The superconducting coil according to claim 1, wherein an uneven shape is formed on a surface of the electrode that contacts the insulator. 3. 3. The superconducting coil according to claim 2, wherein the uneven shape includes a corrugated shape, a shape having needle-like protrusions, and a shape having comb-like protrusions. 4. The superconducting coil according to any one of claims 1 to 3, wherein the electrode is screwed to the insulator. The superconducting coil according to any one of claims 1 to 4, wherein an electrical connection member electrically connected to the moving electrode is provided on the bobbin. A first bonding portion bonded to the electrode, the electrical connection member;
A second joint portion joined to the bobbin;
The superconducting coil according to claim 5, further comprising a flexible portion formed between the first joint and the second joint, and configured to flex with movement of the electrode. The bobbin has a flange,
A plurality of openings are formed in the flange,
7. The insulator provided in the plurality of openings is formed with an inlet electrode, an outlet electrode, and an intermediate electrode each having the superconducting wire connected to the electrode. The superconducting coil according to any one of the above. An axial surface of the bobbin formed in the opening,
The superconducting coil according to any one of claims 1 to 7, wherein a release agent is disposed between the insulating member and the insulator disposed in the opening. 9. The insulator according to claim 1, wherein a powder of an inorganic material having no conductivity is mixed in the insulator within a range of 0.1 to 30% with respect to the insulator. 10. Superconducting coil. The superconducting coil according to claim 9, wherein a particle diameter of the non-conductive inorganic material powder is in a range of 0.01 to 100 μm. A bobbin,
A coil body in which a superconducting wire is wound around the winding frame;
An electrode to which the superconducting wire is connected;
And an insulator disposed on the superconducting wire,
Disposing the electrode on the bobbin;
A superconducting coil, wherein a space is formed between the electrode and the insulator, and the superconducting wire has slack so as to be located in the space. A superconducting magnet device comprising the superconducting coil according to any one of claims 1 to 12.

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