JP6275953B2 - Superconducting coil device - Google Patents

Description

  The present invention relates to a superconducting coil device.

  In the case of an electromagnet such as a deflecting electromagnet for an accelerator or a rotating machine such as a motor, a saddle-shaped coil is generally used. Superconducting technology is applied particularly when high magnetic field strength is required. When a tape-shaped superconducting wire such as an yttrium-based superconducting wire is used, it is difficult to bend it in the width direction of the tape, and if it is forcibly bent, a large distortion occurs in the superconductor and the superconducting characteristics deteriorate.

  Therefore, in a superconducting coil having a three-dimensional bent portion such as a saddle coil, a method of inclining the superconducting wire at the bent portion is employed in order to reduce the bending strain in the width direction (for example, Patent Documents 1 and 2; 3). Since the difference between the length at the bent portion at one end in the tape width direction and the length at the bent portion at the other end gives bending distortion in the width direction, the end length can be increased by tilting the wire at the bent portion. Is reduced, and the bending strain in the width direction is reduced.

  In addition, there is a technique for reducing width-direction bending distortion by inserting a spacer only in a bent portion. Or there exists a technique which inserts a spacer only in a linear part and reduces the width direction bending distortion (for example, patent document 4).

JP 2011-91094 A JP 2010-118457 A JP 2009-49040 A Japanese Patent Laid-Open No. 4-97506

  By the way, the inclination that minimizes the bending strain in the width direction depends on the length of the bent portion, the position of the wire in the straight portion, and the like. Therefore, the inclination of the wire at the bent portion that minimizes the bending strain in the width direction is different for each turn. In the case of a saddle type coil as described above, the inclination of the wire at the bent portion becomes the same in all turns due to winding tension or winding in the winding process, and when the winding thickness increases, the bending strain in the width direction increases. You can make a big turn.

  Accordingly, an object of the present invention is to suppress the bending strain in the width direction of the tape-shaped superconducting wire even if the turns are overlapped.

In order to achieve the above-described object, a superconducting coil device according to the present invention includes a cylindrical winding shaft extending in the axial direction, a loop-shaped winding frame attached to the outer surface of the winding shaft, and the winding shaft. Two linear portions that are wound around the reel along the outer surface and are not on the same plane and that extend in a straight line and are parallel to each other, and the ends of the straight portions are connected to each other. A superconducting coil device comprising: a tape-shaped superconducting wires, a first spacer tape-like wound around sandwiched the superconducting wire, comprising the said first spacer, the adjusting unit by changing the thickness in the width direction And the thicker side of the first spacer is Outwardly as viewed from the axis, the thin side of the side is characterized in that it is wound to be disposed in the side closer to the winding axis.
The superconducting coil device according to the present invention includes a cylindrical winding shaft extending in the axial direction, a loop-shaped winding frame attached to the outer surface of the winding shaft, and the outer surface of the winding shaft. Two bend portions that are wound around a winding frame and have a three-dimensional shape that is not on the same plane and that extend in a straight line and are parallel to each other, and two bent portions that connect the ends of the straight portions to each other A superconducting coil device comprising: a superconducting coil device comprising a superconducting layer, a tape substrate, a stabilizing layer, and a tape-shaped superconducting wire wound around the coil. the second spacer tape-like wound around sandwiched superconducting wire, comprising the said second spacer having a coating material thickness varies at least coated with the width direction on one side The adjustment unit is configured with the second spacer. Outside the thick side of the sides of the support is viewed from the winding shaft, wherein the coating agent is a thin side of the side it is characterized in that it is wound to be disposed closer to the winding axis.
The superconducting coil device according to the present invention includes a cylindrical winding shaft extending in the axial direction, a loop-shaped winding frame attached to the outer surface of the winding shaft, and the outer surface of the winding shaft. Two bend portions that are wound around a winding frame and have a three-dimensional shape that is not on the same plane and that extend in a straight line and are parallel to each other, and two bent portions that connect the ends of the straight portions to each other A superconducting coil device comprising: a superconducting coil device comprising a superconducting layer, a tape substrate, a stabilizing layer, and a tape-shaped superconducting wire wound around the coil. the superconducting wire rod pinched winding third spacer tape-shaped to be wound, comprising a, the third spacer is mixed with the coating material applied to at least one surface, the coating material particle size A fine powder whose distribution varies in the width direction Winding so that the adjustment portion is further configured and the side portion on the thick side of the third spacer is arranged on the outer side as viewed from the winding shaft, and the side portion on the thin side of the coating agent is arranged on the side close to the winding shaft. A superconducting coil device characterized by being made.

  According to the present invention, the bending strain in the width direction of the tape-shaped superconducting wire can be kept small even if the turns are stacked.

It is a top view which shows the external shape of the superconducting coil apparatus which concerns on 1st Embodiment. It is sectional drawing which shows the cross section of the superconducting wire of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 1st Embodiment. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1 perpendicular to the axial direction of the winding axis showing a coil cross section of a straight portion of the superconducting saddle type coil in the superconducting coil device according to the first embodiment. It is the IV-IV line arrow directional cross-sectional view of FIG. 1 along the axial direction of the winding shaft which shows the coil cross section of the linear part of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 1st Embodiment. It is sectional drawing which shows the cross section of the superconducting wire of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 2nd Embodiment. It is a fragmentary sectional view perpendicular | vertical to the axial direction of the winding axis | shaft which shows the coil cross section of the linear part of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 2nd Embodiment. It is a fragmentary sectional view in alignment with the axial direction of the winding axis | shaft which shows the coil cross section of the linear part of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 2nd Embodiment. It is a fragmentary sectional view perpendicular | vertical to the axial direction of the winding axis | shaft which shows the coil cross section of the linear part of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 3rd Embodiment. It is a fragmentary sectional view along the axial direction of the winding axis which shows the coil section of the straight part of the superconducting saddle type coil in the superconducting coil device concerning a 3rd embodiment. It is a fragmentary sectional view perpendicular | vertical to the axial direction of the winding axis | shaft which shows the coil cross section of the linear part of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 4th Embodiment. It is a fragmentary sectional view along the axial direction of the winding axis which shows the coil section of the straight part of the superconducting saddle type coil in the superconducting coil device concerning a 4th embodiment. It is a fragmentary sectional view perpendicular | vertical to the axial direction of the winding axis | shaft which shows the coil cross section of the linear part of the superconducting saddle type coil in the superconducting coil apparatus which concerns on 5th Embodiment. It is a fragmentary sectional view along the axial direction of the winding axis which shows the coil section of the straight part of the superconducting saddle type coil in the superconducting coil device concerning a 5th embodiment.

A superconducting coil device according to an embodiment of the present invention will be described below with reference to the drawings. Here, the same or similar parts are denoted by common reference numerals, and redundant description is omitted.

[First Embodiment]
FIG. 1 is a plan view showing the outer shape of the superconducting coil device according to the first embodiment. The superconducting coil device 100 includes a superconducting saddle coil 1, a winding shaft 5, and a winding frame 6. The winding shaft 5 has a cylindrical shape extending in the axial direction. The reel 6 is attached to the outer surface of the reel 5 and is formed in a three-dimensional race track shape.

  A tape-shaped superconducting wire 2 is wound along the winding frame 6 and along the surface of the winding shaft 5. In FIG. 1, the superconducting wire 2 wound around the entire circumference is not shown and only the upper and lower and left and right portions in FIG. 1 are displayed.

  By winding the tape-shaped superconducting wire 2 along the surface of the winding shaft 5 and the winding frame 6, the superconducting saddle coil 1 having a three-dimensional shape that is not coplanar is formed. The superconducting saddle type coil 1 includes two linear portions 1a that extend linearly parallel to the axial direction of the winding shaft 5 and are parallel to each other, and two bent portions that oppose each other of the ends of the linear portions 1a. 1b. The bent portion 1 b has a length L in the axial direction of the winding shaft 5.

  FIG. 2 is a cross-sectional view showing a cross section of the superconducting wire of the superconducting saddle type coil in the superconducting coil device according to the first embodiment. The superconducting wire 2 has a tape substrate 2a, an intermediate layer 2b, a superconducting layer 2c, a stabilizing layer 2d, and an insulating coating 2f.

The material of the tape substrate 2a is a stable material such as a nickel-based alloy such as Hastelloy (registered trademark). An intermediate layer 2b is formed on the tape substrate 2a. For example, ceria (Ce ₂ O ₃ ) is used for the intermediate layer 2b. The intermediate layer 2b has a thickness of about several tenths of a μm, for example. Superconducting layer 2c is formed on intermediate layer 2b. Superconducting layer 2c has a thickness of about 1 μm, for example.

  The tape substrate 2a, the intermediate layer 2b, and the superconducting layer 2c are surrounded by the stabilization layer 2d. The material of the stabilization layer 2d is, for example, copper (Cu). The outside of the stabilization layer 2d is covered with an insulating coating 2f. The material of the insulating coating 2f is an electrical insulating material.

  The thickness of the superconducting wire 2, that is, the distance between both surfaces of the insulating coating 2f is, for example, about 0.1 mm. The width of the superconducting wire 2 is usually about 3 mm to 5 mm, and the width is about 12 mm.

  The thickness of the insulating coating 2f changes in the width direction. That is, the thickness of the first side portion 2x is thicker than the thickness of the second side portion 2y. As described above, the first side 2x and the second side 2y of the superconducting wire 2 are wound by the thickness of the first side 2x and the second side 2y in the width direction of the superconducting wire 2 being different. The thickness will be different.

  Here, the winding thickness is a thickness increased from the previous state at each position in the width direction of the superconducting wire 2 when the superconducting wire 2 is wound once. The insulation coating 2f that makes the thickness of the first side portion 2x and the second side portion 2y in the width direction of the superconducting wire 2 different in winding thickness between the first side portion 2x and the second side portion 2y. The adjustment part 50 for doing so is comprised.

  The thickness of the first side 2x and the second side 2y in the width direction of the superconducting wire 2 is not limited to the insulating coating 2f. For example, the thickness in the width direction of the tape substrate 2a or the stabilization layer 2d may be different. Alternatively, a combination thereof may be used.

  FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1 perpendicular to the axial direction of the winding axis showing a coil cross section of a straight portion of the superconducting saddle type coil in the superconducting coil device according to the first embodiment. The winding shaft 5 has a circular cross section. Two reels 6 are attached to the top and bottom of the reel 5. Two superconducting saddle-type coils 1 formed around the winding frame 6 are also attached vertically.

  Hereinafter, in order to make the explanation easy to understand, among the two winding frames 6 and the superconducting saddle type coil 1, the winding frame 6 and the superconducting saddle type coil 1 provided on the upper side will be described, but provided on the lower side. The structures of the reel 6 and the superconducting saddle coil 1 are the same.

  The winding frame 6 has a plate shape extending long with a width, and a portion corresponding to the straight portion 1a of the superconducting saddle coil 1 is inclined from the vertical direction as shown in FIG. It is attached to the upper part of the shaft 5. Note that the position of the superconducting wire 2 is shifted from the uppermost point by an opening angle θ at an angle from the center of the winding shaft 5.

  The tape-shaped superconducting wire 2 is sequentially wound around the winding shaft 5 and outside the winding frame 6. Here, the superconducting wire 2 is wound so that the first side 2x is far from the winding shaft 5 and the second side 2y is near the winding 5.

  FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1 along the axial direction of the winding axis showing the coil cross section of the straight portion of the superconducting saddle type coil in the superconducting coil device according to the first embodiment. As shown in FIG. 4, the portion of the winding frame 6 corresponding to the bent portion 1 b of the superconducting saddle-type coil 1 has surfaces facing each other substantially perpendicular to the axial direction of the winding shaft 5, The opposite surface is inclined from a surface substantially perpendicular to the axial direction of the winding shaft 5. Specifically, it is inclined such that the side far from the winding shaft 5, that is, the first side 2x (see FIG. 2) side is close to each other. The inclination of the superconducting wire 2 to be wound is an angle φ from the horizontal as shown in FIG.

  If the thickness of the first side 2x and the thickness of the second side 2y (see FIG. 2) are the same, a certain amount of tension is applied to the superconducting wire 2 in the winding process. Due to the winding, the same inclination as that of the turn wound one turn before will occur. In this case, even if the lengths of the first side 2x and the second side 2y are equal in the first turn, the lengths of the first side 2x and the second side 2y after the second turn are used. Cannot be kept equal.

  On the other hand, in the present embodiment, the thickness of the first side 2x and the second side 2y in the width direction of the superconducting wire 2 is different between the first side 2x and the second side 2y. Since the adjusting portion 50 for making the winding thicknesses different is formed, the inclination is different from that of the previous turn.

  That is, as shown in FIG. 3, in the straight portion 1a, the superconducting wire 2 has a large width of the first side portion 2x (see FIG. 2) on the outside, so that the inclination becomes horizontal as the number of windings increases. Tilt to the direction side. That is, when the number of windings increases, the difference between the circumference of the first side 2x and the circumference of the second side 2y (see FIG. 2) increases.

  Also, as shown in FIG. 4, in the bent portion 1b, the superconducting wire 2 has a larger width on the first side portion 2x on the outer side, so as the number of winding increases, the one farther from the winding shaft 5, That is, the first side portion 2x side is inclined in a direction away from the first side portion 2x side. That is, as the number of windings increases, the difference between the circumference of the first side 2x and the circumference of the second side 2y becomes smaller.

  Since the innermost circumference of the superconducting coil 1 is inclined inward by the bent portion 1b instead of being inclined outward by the straight portion 1a, the circumferential length of the first side portion 2x and the second side portion 2y. Are equal, and bending strain in the width direction does not occur. In the next turn, the results of the change in the inclination at the straight portion 1a and the change in the inclination at the bent portion 1b are such that the circumferential lengths of the first side portion 2x and the second side portion 2y are substantially equal. By setting the thicknesses of the first side 2x and the second side 2y, bending strain in the width direction does not occur. This will be described in more detail below.

  When the bending portion length L (see FIG. 1) is increased, the inclination φ (see FIG. 4) of the superconducting wire 2 at the winding axis vertex that minimizes the bending strain in the width direction of the superconducting wire 2 also increases. That is, the superconducting wire 2 approaches the vertical side at the apex of the winding shaft 5. Further, when the opening angle θ (see FIG. 3) of the superconducting wire 2 in the straight portion 1a is reduced, the inclination φ (see FIG. 4) of the superconducting wire 2 at the top of the winding axis increases.

  When N turns are repeated, the bent portion length L increases by the number of turns N × superconducting wire thickness t (L => L + ΔL = L + Nt), and the inclination φ of the superconducting wire 2 at the apex of the winding shaft 5 increases. Proceed to On the other hand, the opening angle θ of the wire in the cross section is increased by the number of turns N × wire thickness t / winding shaft outer radius r (θ⇒θ + Δθ = θ + Nt / r). Therefore, the inclination φ at the apex of the winding shaft 5 proceeds in a decreasing direction.

  From the above, whether the inclination φ at the apex of the winding shaft 5 increases or decreases as the turns are repeated is determined by the relationship between L, t, θ, and r. When φ increases, the superconducting wire 2 with a thick upper end in the width direction is made a superconducting wire with a thick lower end in the width direction, so that the inclination of the superconducting wire 2 at the apex of the winding axis is bent in the width direction. It is possible to approach a value at which distortion is minimized.

  In this way, a slope is provided in which the circumferential lengths of the first side portion 2x and the second side portion 2y are substantially equal in each turn, and the distortion in the width direction generated in the superconducting wire 2 can be suppressed small even in the entire coil.

[Second Embodiment]
FIG. 5 is a cross-sectional view showing a cross section of a superconducting wire of a superconducting saddle type coil in the superconducting coil device according to the second embodiment. This embodiment is a modification of the first embodiment.

  In the first embodiment, the thicknesses of the first side 2x (see FIG. 2) and the second side 2y (see FIG. 2) of the superconducting wire 2 are different, but in the second embodiment. The thickness of the 1st side part 3x and the 2nd side part 3y of the superconducting wire 2 is not different. Specifically, in the present embodiment, the thickness of the insulating coating 3f of the superconducting wire 2 is not different between the first side 3x side and the second side 3y side. In other words, in the first embodiment, the insulating coating 2f constitutes the adjusting portion 50 for making the winding thicknesses different between the first side portion and the second side portion of the adjusting portion. In the second embodiment, each element of the superconducting wire 2 does not constitute a part of the adjustment unit 50.

  FIG. 6 is a partial cross-sectional view perpendicular to the axial direction of the winding axis showing the coil cross section of the straight portion of the superconducting saddle coil in the superconducting coil device according to the second embodiment. FIG. 7 is a partial cross-sectional view along the axial direction of the winding shaft showing the coil cross section of the straight portion of the superconducting saddle type coil in the superconducting coil device according to the second embodiment.

  The first spacer 11 is wound around the superconducting wire 2 in the same manner as the superconducting wire 2. The first spacer 11 has a long tape shape and has a width substantially equal to that of the superconducting wire 2.

  The thickness of the cross section of the first spacer 11 changes in the width direction. The first spacer 11 is wound so that the thicker side portion is disposed on the outer side as viewed from the winding shaft 5, and the thinner side portion is disposed on the side closer to the winding shaft 5.

  In the present embodiment, the thickness of the first spacer 11 in the width direction is different, so that the adjusting portion 50 for making the winding thickness different between the first side portion 3x and the second side portion 3y. Is formed. That is, the first spacer 11 constitutes the adjustment unit 50.

  Therefore, by setting the thickness of the first spacer 11 appropriately, an inclination is obtained in which the circumferences of the first side portion 3x and the second side portion 3y are substantially equal in each turn, and the entire coil is also a superconducting wire. The distortion in the width direction generated in 2 can be kept small.

[Third Embodiment]
FIG. 8 is a partial cross-sectional view perpendicular to the axial direction of the winding shaft showing the coil cross section of the straight portion of the superconducting saddle coil in the superconducting coil device according to the third embodiment. FIG. 9 is a partial cross-sectional view along the axial direction of the winding shaft showing the coil cross section of the straight portion of the superconducting saddle coil in the superconducting coil device according to the third embodiment.

  This embodiment is a modification of the second embodiment. In the present embodiment, the second spacer 20 is wound in the same manner as the superconducting wire 2 between the superconducting wire 2. The second spacer 20 includes a tape-like plate material 21 that is elongated and a coating agent 22 that is applied to the entire surface of both sides of the plate material 21. The plate material 21 has a width substantially equal to that of the superconducting wire 2.

  Here, the coating agent 22 is, for example, an adhesive or a resin. The thickness to which the coating agent 22 is applied changes in the width direction of the plate material 21, and the thickness of the coating agent 22 on both sides of the plate material 21 is different.

  Note that the coating agent 22 may be applied to only one surface of the plate material, not on both sides of the plate material 21. The coating agent 22 may not be applied to the entire surface of the plate material 21. For example, it may be applied only to both side portions of the plate material 21 in the width direction.

  In the present embodiment, the thickness of the second spacer 20 in the width direction is different, so that the first side portion 3x (see FIG. 5) and the second side portion 3y (see FIG. 5) have a winding thickness. An adjustment portion 50 is formed to make the two different. That is, the second spacer 20, specifically, the coating agent 22 constitutes the adjusting unit 50.

  Therefore, by appropriately setting the thickness of the coating of the coating agent 22 on the plate material 21, an inclination is provided in which the circumferential lengths of the first side portion 3x and the second side portion 3y are substantially equal in each turn, and the coil As a whole, the distortion in the width direction generated in the superconducting wire 2 is suppressed to a small level.

  Further, the superconducting wire 2 is fixed to the winding shaft 5 and the winding frame 6 by the coating agent 22, and the three-dimensional saddle shape of the superconducting saddle coil 1 is maintained.

[Fourth Embodiment]
FIG. 10 is a partial cross-sectional view perpendicular to the axial direction of the winding axis showing the coil cross section of the straight portion of the superconducting saddle coil in the superconducting coil device according to the fourth embodiment. FIG. 11 is a partial cross-sectional view along the axial direction of the winding axis showing the coil cross section of the straight portion of the superconducting saddle coil in the superconducting coil device according to the fourth embodiment.

  This embodiment is a modification of the third embodiment. In the present embodiment, the third spacer 30 is wound in the same manner as the superconducting wire 2 between the superconducting wire 2. The third spacer 30 includes a tape-like plate material 31 that extends long, a coating agent 32 applied to the entire surface of both sides of the plate material 31, and fine powder 33 mixed in the coating agent 32. The plate material 31 has a width substantially equal to that of the superconducting wire 2.

  Here, the fine powder 33 has a particle size that changes in the width direction of the plate 31. That is, since the particle size of the fine powder 33 is different on both side portions of the plate material 31, the thickness of the third spacer 30 on both side portions of the plate material 31 is different.

  Note that the coating agent 32 and the fine powder 33 may be present on only one surface of the plate material, not on both sides of the plate material 31. Further, the coating agent 32 and the fine powder 33 may not be present on the entire surface of the plate material 31. For example, it may be only on both sides in the width direction of the plate 31.

  In the present embodiment, the thickness of the third spacer 30 in the width direction is different, so that the first side 3x (see FIG. 5) and the second side 3y (see FIG. 5) have a winding thickness. An adjustment portion 50 is formed to make the two different. That is, the third spacer 30, specifically, the fine powder 33 constitutes the adjustment unit 50.

  Accordingly, by appropriately setting the particle size distribution in the width direction of the plate material 31 of the fine powder 33 mixed in the coating agent 32, the perimeter of the first side portion 3x and the second side portion 3y in each turn. Are given the same inclination, and the distortion in the width direction generated in the superconducting wire 2 can be kept small even in the entire coil.

  Further, the superconducting wire 2 is fixed to the winding shaft 5 and the winding frame 6 by the coating agent 32, and the three-dimensional saddle shape of the superconducting saddle coil 1 is maintained.

[Fifth Embodiment]
FIG. 12 is a partial cross-sectional view perpendicular to the axial direction of the winding axis showing the coil cross section of the straight portion of the superconducting saddle coil in the superconducting coil device according to the fifth embodiment. FIG. 13 is a partial cross-sectional view along the axial direction of the winding shaft showing the coil cross section of the straight portion of the superconducting saddle type coil in the superconducting coil device according to the fifth embodiment.

  This embodiment is a modification of the second embodiment. The first spacer 11 in the second embodiment has substantially the same width as the superconducting wire 2, but the superconducting coil device 100 in the fifth embodiment has a partial spacer 41 that is narrower than the superconducting wire 2. Have.

  The partial spacer 41 is wound around the superconducting wire 2 in the same manner as the superconducting wire 2. The partial spacer 41 is in the form of a long tape.

  The partial spacer 41 is arranged in a region far from the winding shaft 5 in the width direction of the superconducting wire 2.

  In the present embodiment configured as described above, when the superconducting wire 2 is wound, the side close to the winding shaft 5 is in close contact with the turn wound one turn before, and the side far from the winding shaft 5 is The partial spacer 41 is sandwiched between the turn wound one turn before and the inclination is different from the turn one turn before. That is, in the present embodiment, the partial spacer 41 constitutes the adjustment unit 50.

  In the superconducting coil device 100 according to the present embodiment, in addition to the effect that the distortion in the width direction generated in the superconducting wire 2 can be suppressed even in the whole coil, the position of the partial conductor 41 in the width direction of the superconducting wire 2 is adjusted. Thus, there is an effect that it is possible to adjust the amount of change in the angle from the turn wound one turn before.

  In addition, since the thickness of the spacer sandwiched between the superconducting wire 2 can be suppressed, the superconducting saddle coil 1 can be made compact with respect to the required number of turns of the superconducting wire 2.

[Other Embodiments]
As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. For example, in the embodiment, the case where the cross section of the winding shaft 5 is circular is shown, but the present invention is not limited to this. For example, it may be an ellipse or a polygon.

  In the embodiment, the first side portion far from the winding shaft is thicker than the second side portion near the winding shaft, but the present invention is not limited to this. As described at the end of the description of the first embodiment, by setting the relationship between the thickness of the first side portion and the second side portion according to the shape of the winding shaft and the reel, that is, the saddle shape. Good.

  In the embodiment, the case where the superconducting saddle coils are above and below the winding axis is shown, but the present invention is not limited to this. In the case of a deflecting electromagnet, the superconducting saddle coils are usually provided vertically, but for example, in the case of a converging electromagnet, four poles provided vertically and horizontally are usually used. Also, depending on the purpose, there may be 6 poles. Even in these cases, the present invention can be applied to each superconducting saddle coil.

  Moreover, you may combine the characteristic of each embodiment. For example, the superconducting wires having different thicknesses in the width direction in the first embodiment, the first spacer in the second embodiment, the second spacer in the third embodiment, the third spacer in the fourth embodiment, It may be selected from the partial spacers in the fifth embodiment and combined.

  Furthermore, these embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  In the embodiment, expressions such as horizontal, vertical, and vertical are used for convenience of explanation, but are not limited to this direction. As a whole, the inclination is inclined with respect to the horizontal direction. Even if it has, the present invention can be similarly applied.

  DESCRIPTION OF SYMBOLS 1 ... Superconducting saddle type coil, 1a ... Straight part, 1b ... Bending part, 2 ... Superconducting wire, 2a ... Tape substrate, 2b ... Intermediate layer, 2c ... Superconducting layer, 2d ... Stabilization layer, 2f ... Insulation coating, 2x ... 1st side, 2y ... 2nd side, 3f ... insulation coating, 3x ... 1st side, 3y ... 2nd side, 5 ... winding axis, 6 ... reel, 11 ... 1st Spacer, 20 ... second spacer, 21 ... plate material, 22 ... coating agent, 30 ... third spacer, 31 ... plate material, 32 ... coating agent, 33 ... fine powder, 41 ... partial spacer, 50 ... adjusting unit, 100 ... Superconducting coil device

Claims (4)

A cylindrical winding shaft extending in the axial direction;
A loop-shaped reel attached to the outer surface of the winding shaft;
Two linear portions that are wound around the winding frame along the outer surface of the winding shaft and that are not on the same plane and that extend in a straight line and are parallel to each other, and each of the linear portions A superconducting saddle coil having two bends for joining the ends;
A superconducting coil device comprising :
The superconducting saddle coil is
A tape-shaped superconducting wire wound with a superconducting layer, a tape substrate, a stabilizing layer and an insulating coating;
A tape-like first spacer that is sandwiched and wound between the superconducting wires;
Comprising
The first spacer constitutes an adjustment portion by changing the thickness in the width direction,
The superconducting coil device is wound such that the thicker side portion of the first spacer is disposed on the outer side as viewed from the winding shaft, and the thinner side portion is disposed on the side closer to the winding shaft. . A cylindrical winding shaft extending in the axial direction;
A loop-shaped reel attached to the outer surface of the winding shaft;
Two linear portions that are wound around the winding frame along the outer surface of the winding shaft and that are not on the same plane and that extend in a straight line and are parallel to each other, and each of the linear portions A superconducting saddle coil having two bends for joining the ends;
A superconducting coil device comprising :
The superconducting saddle coil is
A tape-shaped superconducting wire wound with a superconducting layer, a tape substrate, a stabilizing layer and an insulating coating;
A tape-like second spacer wound between the superconducting wires, and
Comprising
The second spacer constitutes an adjustment unit by having an application agent that is applied to at least one surface and changes in thickness in the width direction,
The second spacer is wound so that the thick side portion of the second spacer is disposed on the outer side as viewed from the winding axis, and the thin side portion of the coating agent is disposed on the side close to the winding shaft. Superconducting coil device. A cylindrical winding shaft extending in the axial direction;
A loop-shaped reel attached to the outer surface of the winding shaft;
Two linear portions that are wound around the winding frame along the outer surface of the winding shaft and that are not on the same plane and that extend in a straight line and are parallel to each other, and each of the linear portions A superconducting saddle coil having two bends for joining the ends;
A superconducting coil device comprising :
The superconducting saddle coil is
A tape-shaped superconducting wire wound with a superconducting layer, a tape substrate, a stabilizing layer and an insulating coating;
A tape-like third spacer which is sandwiched and wound around the superconducting wire;
Comprising
The third spacer includes a coating agent applied to at least one surface and a fine powder mixed in the coating agent and having a particle size distribution that changes in the width direction.
The third spacer is wound such that the side portion on the thick side is disposed on the outside as viewed from the winding axis, and the side portion on the thin side of the coating agent is disposed on the side close to the winding shaft. Superconducting coil device.   The superconducting coil device according to any one of claims 1 to 3, wherein an element that is sandwiched and wound around the superconducting wire is an insulating material.

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