Superconducting wire connecting container and superconducting magnet

Abstract

A container and a superconducting magnet for connecting superconducting wires. The embodiments relate to a container and a superconducting magnet for connecting superconducting wires. A container and a superconducting magnet for connecting superconducting wires are provided that can prevent the filaments of the superconducting element from floating and can improve the cooling effect of the container. The container for connecting superconducting wires of the embodiment includes a superconducting wire having a superconducting element, a superconducting material, and a container. The superconducting material is used to electrically bond two or more of the superconducting wires. The container has an outer wall and a bottom plate, the outer wall holding the superconducting material and the superconducting wire, and has recesses and / or protrusions.

Description

[0001] Reference to related applications

[0002] This application enjoys the benefit of priority to Japanese Patent Application No. 2024-115554, filed on July 19, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments disclosed in this specification relate to containers for connecting superconducting wires and superconducting magnets. Background Technology

[0004] In MRI (Magnetic Resonance Imaging) devices, superconducting magnets, which utilize superconductors, are sometimes used. The interconnection of superconducting wires is crucial for fabricating these magnets. Suppressing power loss is essential in the interconnection of these superconducting wires.

[0005] Here, in connecting superconducting wires to each other, there is a method as follows: the superconducting wires are brazed using superconducting solder that exhibits superconductivity at low temperatures, the brazed superconducting wires are sealed in a container to make a container for connecting superconducting wires, and the superconducting wires are connected using the container for connecting superconducting wires.

[0006] However, during the fabrication of containers for superconducting wire connections, in some cases the filaments of the superconducting element may float up, come into contact with air on the surface, and oxidize, becoming an insulator. In this case, the connection characteristics of the superconducting wire deteriorate. Utility Model Content

[0007] The problem to be solved by this invention is to provide a container for connecting superconducting wires and a superconducting magnet that can prevent the filaments of superconducting components from floating up and can improve the cooling effect of the container.

[0008] In one technical solution, a container for connecting superconducting wires is provided, the container comprising: superconducting wires having superconducting elements; superconducting material for electrically bonding two or more said superconducting wires; and a container having an outer wall and a bottom plate, the outer wall holding the superconducting material and the superconducting wires, and having recesses and / or protrusions.

[0009] In one technical solution, the recess and / or protrusion may mechanically restrict the superconducting wire, thereby preventing the superconducting wire from floating in the container when two or more superconducting wires are electrically joined using the superconducting material.

[0010] In one technical solution, a cooling section is provided in the recess and / or protrusion for cooling the container through the outer wall.

[0011] In one technical solution, the cooling section may be a heat transfer medium for cooling, which is a thermosiphon or a heat pipe.

[0012] In one technical solution, the cooling section may include an adhesive layer in contact with the outer wall and a metal component in contact with the adhesive layer.

[0013] In one technical solution, the adhesive layer may be metal or resin.

[0014] In one technical solution, the protrusion may have a shape adapted to the cooling component in the cooling section.

[0015] In one technical solution, the cooling section may be made of copper, aluminum, SUS stainless steel, ceramic, resin, polyimide, or plastic materials, or may be implemented using a refrigerant.

[0016] In one technical solution, the protrusion may be a rod-shaped component.

[0017] In one technical solution, the container for connecting the superconducting wire may further include a fixing part for fixing the component.

[0018] In one technical solution, the recess and / or convex portion may be a corrugated structure.

[0019] In one technical solution, the recess and / or convex portion may be a shape formed by circular arcs.

[0020] In one technical solution, the container may be a rectangular container.

[0021] In one technical solution, the superconducting wire may include a base material containing copper or a copper compound and a superconducting component disposed on the inner side of the base material, wherein the superconducting material is a solder that exhibits superconductivity at low temperatures.

[0022] In another technical solution, a superconducting magnet is provided, which is formed by connecting the superconducting wires contained in the superconducting coil using a superconducting wire connection container as described above.

[0023] Effect

[0024] The container and superconducting magnet for connecting superconducting wires according to the embodiment can prevent the filaments of the superconducting component from floating up and can improve the cooling effect of the container. Attached Figure Description

[0025] Figure 1 This diagram illustrates an example of the manufacturing process of a container for connecting superconducting wires.

[0026] Figure 2 This diagram illustrates an example of the manufacturing process of a container for connecting superconducting wires.

[0027] Figure 3 This is a diagram illustrating the appearance of the container used for connecting the superconducting wire in the comparative example.

[0028] Figure 4 This is a cross-sectional view illustrating the structure of the container for connecting superconducting wires in the comparative example.

[0029] Figure 5 This is a diagram illustrating the appearance of the container used for connecting the superconducting wire in the comparative example.

[0030] Figure 6 This is a cross-sectional view illustrating the structure of the container for connecting superconducting wires in the comparative example.

[0031] Figure 7 This is a cross-sectional view illustrating an example of the structure of the container for connecting superconducting wires according to the first embodiment.

[0032] Figure 8 This is a cross-sectional view illustrating an example of the structure of the container for connecting superconducting wires according to the first embodiment.

[0033] Figure 9 This is a cross-sectional view illustrating another example of the structure of the container for connecting superconducting wires according to the first embodiment.

[0034] Figure 10 This is a cross-sectional view illustrating another example of the structure of the container for connecting superconducting wires according to the first embodiment.

[0035] Figure 11 This figure illustrates another example of the structure of the container for connecting superconducting wires according to the first embodiment.

[0036] Figure 12 This is a cross-sectional view illustrating an example of the structure of the container for connecting superconducting wires according to the second embodiment.

[0037] Figure 13 This is a cross-sectional view illustrating another example of the structure of the container for connecting superconducting wires according to the second embodiment.

[0038] Figure 14 This is a cross-sectional view illustrating another example of the structure of the container for connecting superconducting wires according to the second embodiment.

[0039] Figure 15 This figure illustrates another example of the structure of the container for connecting superconducting wires according to the second embodiment.

[0040] Figure 16 This is a cross-sectional view illustrating another example of the structure of the container for connecting superconducting wires according to the second embodiment.

[0041] Figure 17 This figure illustrates another example of the structure of the container for connecting superconducting wires according to the second embodiment.

[0042] Figure 18 This is a cross-sectional view illustrating another example of the structure of the container for connecting superconducting wires according to the second embodiment. Detailed Implementation

[0043] One aspect of this invention provides a container for connecting superconducting wires, comprising a superconducting wire with a superconducting element, a superconducting material, and a container. The superconducting material is used to electrically bond two or more of the superconducting wires. The container has an outer wall and a bottom plate, the outer wall holding the superconducting material and the superconducting wires, and having recesses and / or protrusions.

[0044] <First Implementation Method>

[0045] Hereinafter, embodiments of the container for connecting superconducting wires (superconducting wires) and the superconducting (superconducting) magnet will be described in detail with reference to the accompanying drawings. Furthermore, in the embodiments, superconductivity and superconducting power are synonymous.

[0046] First, the connection of superconducting wires will be explained. In devices such as MRI (Magnetic Resonance Imaging), superconducting magnets using superconductors are employed, and the connection of superconducting wires is crucial for fabricating these magnets. Suppressing power loss is important in the connection of these superconducting wires.

[0047] Here, in connecting superconducting wires to each other, the following method can be considered: brazing the superconducting wires using a superconducting solder that exhibits superconductivity at low temperatures, and then sealing the brazed superconducting wires into a container to create a container for connecting the superconducting wires. By connecting the superconducting wires through this container, superconducting magnets, for example, used in MRI, can be generated.

[0048] Figure 1 and Figure 2 An example of the fabrication process of a container for connecting superconducting wires is shown in the figure. Figure 1 An example is shown where a container for superconducting wire connections is produced by brazing a fine wire that has been immersed in concentrated nitric acid. Figure 2 An example is shown where a container for superconducting connections is generated by brazing after tin replacement of the superconducting wire.

[0049] Figure 1An example is shown where a container for superconducting wires is manufactured by brazing a filament into a superconducting wire after it has been immersed in concentrated nitric acid. First, in step S1, the superconducting wire 9 typically includes a base material 1 containing copper or a copper compound and a superconducting element 2 disposed inside the base material 1. For example, NbTi or Nb3Sn is used as the superconducting element 2. When the superconducting wire 9 is immersed in concentrated nitric acid 10, the base material 1, composed of copper or a copper compound, dissolves, exposing the internal superconducting element 2, which then becomes a filament.

[0050] Next, in step S2, the two filaments that expose the superconducting element 2 portion are twisted together. Specifically, the superconducting wire 9a and the superconducting wire 9b are connected by twisting the filament-shaped superconducting element 2a in the superconducting wire 9a composed of the base material 1a and the superconducting element 2a with the filament-shaped superconducting element 2b in the superconducting wire 9b composed of the base material 1b and the superconducting element 2b.

[0051] Next, in step S3, superconducting wires 9a and 9b are disposed in container 3. Container 3 is typically made of a conductive material such as copper.

[0052] Next, in step S4, two or more superconducting wires, namely superconducting wires 9a and 9b, are electrically bonded using superconducting material 4. Superconducting material 4 is, for example, solder that exhibits superconductivity at low temperatures. As an example, using solder that is liquid at high temperatures (and exhibits superconductivity at low temperatures) as superconducting material 4, superconducting wires 9a and 9b are brazed. The superconducting material 4 solidifies at low temperatures, thereby electrically bonding superconducting wires 9a and 9b together. For example, at a low temperature after further cooling, such as at liquid helium temperatures, the superconducting material 4 becomes superconducting, thus reducing the resistance at the connection between superconducting wires 9a and 9b to zero, suppressing power loss.

[0053] Figure 2 An example is shown where a container for superconducting wire connections is generated by brazing a filament after tin replacement of the superconducting wire 9. First, in step S1, the superconducting wire 9 typically includes a base material 1 containing copper or a copper compound and a superconducting element disposed inside the base material 1. For example, NbTi or Nb3Sn is used as the superconducting element. If the superconducting wire 9 is immersed in molten tin 11, then as in step S2, the base material 1, composed of copper or a copper compound, dissolves, exposing the superconducting element 2. At this time, the surface of the superconducting element 2 is coated with tin. Thus, tin plating is performed. This operation is performed on both superconducting wires separately.

[0054] Next, in step S3, tin-plated superconducting wires 9a and 9b are placed in container 3. Container 3 is typically made of a conductive material such as copper.

[0055] Next, in step S4, two or more superconducting wires, namely superconducting wires 9a and 9b, are electrically bonded using superconducting material 4. Specifically, superconducting material 4 is, for example, solder that exhibits superconductivity at low temperatures. As an example, using solder that is liquid at high temperatures (and exhibits superconductivity at low temperatures) as superconducting material 4, superconducting wires 9a and 9b are brazed, and superconducting material 4 is solidified at low temperatures, thereby electrically bonding superconducting wires 9a and 9b by superconducting material 4. For example, at a low temperature after further cooling, such as at liquid helium temperature, superconducting material 4 becomes superconducting, therefore the resistance at the connection between superconducting wires 9a and 9b becomes zero, and power loss can be suppressed.

[0056] As described above, the method for manufacturing a container for superconducting wire connections has been explained in two ways: by brazing a filament immersed in concentrated nitric acid, and by brazing a superconducting wire after tin replacement. However, the embodiments are not limited to these methods; in other embodiments, superconducting wire connections can also be performed by crimping, solid-phase bonding, or other similar methods.

[0057] Here, crimp bonding refers to a method of joining multiple superconducting wires by crimping. In the case of crimp bonding, firstly, the same process is performed... Figure 1 The processing steps S1 and S2 are as follows. In the case of crimping, in step S3, superconducting wires 9a and 9b are inserted into the metal sleeve. In step S4, pressure is applied to the metal sleeve to crimp and join superconducting wires 9a and 9b. Finally, brazing is performed near the inlet of the metal sleeve.

[0058] Furthermore, the same process is performed in the case of solid-phase bonding. Figure 1 The processing in steps S1 and S2. In the case of solid-state bonding, in step S3, superconducting wires 9a and 9b are inserted into a compression jig. In step S4, the compression jig is pressurized and heated to solid-state bond superconducting wires 9a and 9b.

[0059] use Figure 3 and Figure 4 The structure of the container for connecting superconducting wires will be explained in more detail. Figure 3 This is an external view of the container used for connecting superconducting wires in a comparative example. Figure 4 This is a cross-sectional view of a container used for connecting superconducting wires, as a comparative example.

[0060] like Figure 3 and Figure 4 As shown, the comparative example of the superconducting wire connection container includes: superconducting wires 9a and 9b, having superconducting elements 2a and 2b; a superconducting material 4 for electrically bonding two or more superconducting wires 9a and 9b; and a container 3 having an outer wall 21 and a bottom plate 22 for holding the superconducting material 4 and the superconducting wires 9a and 9b. Here, the superconducting wires 9a and 9b include a base material 1a and 1b containing copper or a copper compound and superconducting elements 2a and 2b disposed inside the base material 1a and 1b. The superconducting material 4 is, for example, a solder that exhibits superconductivity at low temperatures. Using the superconducting wire connection container of the embodiment, superconducting wires, for example, superconducting coils contained in superconducting magnets, are connected to each other.

[0061] In addition, in order to control the formation of voids during solder solidification and cooling, and to improve the cooling efficiency of the container, such as Figure 5 and Figure 6 As shown, container 3 can also have a cavity 5. Figure 5 This is an external view of a superconducting wire connection container, comparing the case where container 3 has a cavity 5. Figure 6 This is a cross-sectional view of a superconducting wire connection container, comparing the case where container 3 has a cavity 5.

[0062] like Figure 5 and Figure 6 As shown, the comparative example of the superconducting wire connection container includes: superconducting wires 9a and 9b, having superconducting elements 2a and 2b; a superconducting material 4 for electrically connecting two or more superconducting wires 9a and 9b; and a container 3 having an outer wall 21 and a bottom plate 22 for holding the superconducting material 4 and the superconducting wires 9a and 9b. Figure 3 and Figure 4 Similarly, superconducting wires 9a and 9b include a base material 1a and 1b containing copper or a copper compound, and superconducting elements 2a and 2b disposed inside the base material 1a and 1b. The superconducting material 4 is, for example, a solder that exhibits superconductivity at low temperatures.

[0063] Here, a hole 5 is provided in the bottom plate of the container 3, and the container 3 has an inner wall 31 that is at least partially integrated with the bottom plate 22. In order to improve thermal conductivity, the inner wall 31 may also be made of a conductive material.

[0064] Here, by creating a void 5 in the bottom plate of the container 3, a difference in cooling rate is created between the inner wall 31 and the outer wall 21, thereby controlling the generation of voids. Moreover, by creating voids, the container 3 can be cooled efficiently, for example, when it is assembled and operated as part of a superconducting magnet.

[0065] Next, the background of the implementation method will be explained.

[0066] When the container for connecting superconducting wires is manufactured, superconducting solder, which becomes superconducting at low temperatures, is filled into the container 3 as superconducting material 4. However, before the superconducting material 4 is cooled and solidified, it is in a liquid metallic state. Therefore, in some cases, the filaments of the superconducting component 2 may float up, come into contact with air on the surface of the superconducting material 4, and oxidize, becoming an insulator. If the filaments of the superconducting component 2 oxidize upon contact with air and become an insulator, resistance will be generated, and the connection characteristics of the superconducting wire will deteriorate.

[0067] Given this background, for example, Figure 7 As shown, the container for connecting superconducting wires according to the embodiment includes: superconducting wires 9a and 9b, having a superconducting element 2; a superconducting material 4 for electrically connecting two or more superconducting wires 9a and 9b; and a container 3 having an outer wall 21 and a bottom plate 22, the outer wall 21 holding the superconducting material 4 and the superconducting wires 9a and 9b, and having a recess and / or a protrusion 6.

[0068] Here, Figure 7 The case where the recess and / or protrusion 6 is a protrusion is shown. In this case, by having the recess and / or protrusion 6 on the outer wall 21, the filament portion of the superconducting element 2 mechanically contacts and is locked in place with the recess and / or protrusion 6. Therefore, it is possible to prevent the superconducting element 2 from floating on the surface 40 and reacting with oxygen in the atmosphere to oxidize. Therefore, it is possible to prevent the connection characteristics of the superconducting wire from deteriorating. That is, the recess and / or protrusion 6 mechanically restrict the superconducting element 2, thereby preventing the superconducting element 2 from floating in the container 3 when two or more superconducting elements 2a, 2b are electrically bonded using the superconducting material 4.

[0069] In addition, since the recesses and / or protrusions 6 protrude on the outer wall 21, the cooling efficiency of the container 3 can be improved.

[0070] In addition, such as Figure 8 As shown, the recesses and / or protrusions 6 in the embodiment may also be formed by recesses. In this case, it includes: superconducting wires 9a and 9b having a superconducting element 2; a superconducting material 4 for electrically bonding two or more superconducting wires 9a and 9b; and a container 3 having an outer wall 21 and a bottom plate 22, the outer wall 21 holding the superconducting material 4 and the superconducting wires 9a and 9b, and having recesses and / or protrusions 6.

[0071] Here, in Figure 8 In this configuration, the recessed portion and / or convex portion 6 is a recessed portion, and the filamentary portion of the superconducting element 2 mechanically contacts and is locked into the recessed portion of the recessed portion and / or convex portion 6. Therefore, it is possible to prevent the superconducting element 2 from floating on the surface and reacting with oxygen in the atmosphere to oxidize. Thus, it is possible to prevent the connection characteristics of the superconducting wire from deteriorating.

[0072] In addition, the large contact area between the concave and / or convex portions 6 and the superconducting material 4 improves the cooling efficiency of the container 3.

[0073] Figure 9 Another example of a recess and / or convex portion 6 is shown. Figure 9 For container 3, the same as Figure 6 To illustrate a similar type of structure, container 3 has an outer wall 21, a bottom plate 22, and an inner wall 31. Container 3 has a generally symmetrical shape about a central axis and has a cavity 5 inside. Figure 9 The structure of a portion of such a container 3 is shown. The superconducting element 2 is wound, for example, along the inner or outer wall of the container 3. Here, the recesses and / or protrusions 6 on the outer wall 21 are corrugated structures, forming a shape composed of multiple arcs 6x, 6y, and 6z. The recesses and / or protrusions 6 prevent the superconducting element 2 from floating within the container 3 through mechanical contact with it, and efficiently cool the container 3 by maintaining a large surface area in contact with the superconducting material 4.

[0074] Alternatively, as another example, a cooling section for cooling the container 3 via the outer wall 21 may be provided in the recess and / or protrusion 6. Figure 10 An example of this structure is shown. Figure 10 In this container, the outer wall 21 of the container 3 has corrugated recesses and / or protrusions 6. The container 3 includes an adhesive layer 7 that contacts the outer wall 21 with the recesses and / or protrusions 6 and a metal component 8 that contacts the adhesive layer 7. Here, the cooling section includes the adhesive layer 7 that contacts the outer wall 21 with the recesses and / or protrusions 6 and the metal component 8 that contacts the adhesive layer 7. The shape of the recesses and / or protrusions 6 is adapted to the cooling component, thus having a large contact area with the superconducting material 4 and the cooling section. Furthermore, the adhesive layer 7 may be made of metals such as indium, aluminum, alloys used in solders and welding electrodes, or resins such as epoxy or silicon.

[0075] Alternatively, as another example of a cooling unit, the cooling unit can also be a heat transfer medium in the form of a thermosiphon or a heat pipe. By using a heat transfer medium in the form of a thermosiphon or a heat pipe, the cooling efficiency of container 3 can be further improved. Figure 11 This example is shown.

[0076] exist Figure 11In the container 3, the adhesive layer 7 contacts the recesses and / or protrusions 6 of the outer wall 21, and a thermosiphon, serving as a cooling component 70, is arranged to contact both the adhesive layer 7 and the metal component 8. The recesses and / or protrusions 6 are shaped like gentle arcs to prevent the superconducting component 2 from floating within the container 3, and the thermosiphon, serving as the cooling component 70, enables rapid cooling of the superconducting material 4 that contacts the recesses and / or protrusions 6.

[0077] The embodiments are not limited to the examples described above. In the examples described above, the case where the recess and / or protrusion 6 is provided on the outer wall 21 has been explained, but the locations where the recess and / or protrusion 6 is provided are not limited to this. For example, the recess and / or protrusion 6 may also be provided on the inner wall 31 or the bottom plate 22. In addition, the recess and / or protrusion 6 may be provided on two or more locations among the outer wall 21, the inner wall 31, and the bottom plate 22.

[0078] Furthermore, the shape of the recess and / or protrusion 6 is not limited to the examples listed above, and can also be various shapes such as circles, ellipses, quadrilaterals, and polygons. In addition, the recess and / or protrusion 6 can be, for example, a conical (conical) shape, and a shape that is difficult to get stuck when the superconducting component 2 is placed into the container 3.

[0079] Furthermore, the recesses and / or protrusions 6 are not limited to being arranged symmetrically from left to right; they can also be arranged asymmetrically from left to right. In addition, the shapes of the recesses and / or protrusions 6 can vary depending on their location, and they can also have different radial lengths, side lengths, areas, etc.

[0080] In addition, the material of the cooling unit is not limited to the examples mentioned above. The cooling unit can also be made of copper, aluminum, SUS stainless steel, ceramic, resin, polyimide, or plastic, or it can be made using a refrigerant.

[0081] As described above, in the first embodiment, the outer wall 21 of the container 3 has a recess and / or a protrusion 6. Thus, by making the recess and / or the protrusion 6 mechanically contact the filament portion of the superconducting element 2, it is possible to prevent the superconducting element 2 from floating up and coming into contact with the atmosphere and being oxidized. Furthermore, by maintaining a large contact area with the superconducting material 4 and the cooling section, it is possible to facilitate efficient cooling of the container 3.

[0082] <Second Implementation Method>

[0083] The implementation is not limited to the embodiments described above. As an example, the recess and / or protrusion 6 may sometimes be rod-shaped components. For example, such as... Figure 12As shown, in the second embodiment, the rod-shaped member 60 serves as the recessed portion and / or protruding portion 6, functions like a sinking cover (Japanese: 落とし蓋), and prevents the superconducting member 2 from floating by coming into mechanical contact with the filament portion of the superconducting member 2. In addition, the rod-shaped member 60 contributes to efficient cooling of the container 3 by maintaining a large contact area with the superconducting material 4.

[0084] In addition, the shape of the rod-shaped member is not limited to the above examples, for example, as Figure 13 shown, the recessed portion and / or protruding portion 6 may also be a rod-shaped member 63 having a U-shape. The U-shaped rod-shaped member 63 is disposed in the container 3 in a form hooked onto the container 3, thereby preventing the superconducting member 2 from floating.

[0085] In addition, a fixing portion for fixing the rod-shaped member may be further provided. As an example of the fixing portion, for example, mechanical fixing using bolt fastening or the like can be cited. As an example, as Figure 14 shown, as the fixing portion, a bolt 67 for fixing the rod-shaped member 65 which is the recessed portion and / or protruding portion 6 can be provided.

[0086] In addition, in the above embodiment, the case where the container 3 is a cylindrical container has been described, but the embodiment is not limited thereto. That is, the container 3 may also be a rectangular container. Figure 15 and Figure 16 show an example of such an embodiment. Figure 15 is an external view of a container for superconducting wire connection when the container 3 is a rectangular container, Figure 16 is a sectional view.

[0087] As Figure 15 and Figure 16 shown, the container for superconducting wire connection according to the embodiment includes: superconducting wires 9a and 9b having superconducting members 2a and 2b; a superconducting material 4 for electrically joining two or more superconducting wires 9a and 9b; and a container 3 having outer walls 21a, 21b and a bottom plate 22 that hold the superconducting material 4 and the superconducting wires 9a and 9b. Here, in Figure 15 , the outer wall 21a is provided with a protruding portion 68, and the outer wall 21b is provided with a protruding portion 69. The protruding portion 68 is constituted by a thermosiphon, for example, and the protruding portion 69 is a cooling portion formed using copper, aluminum, SUS stainless steel, ceramics, resin, polyimide or plastic materials, or implemented using a refrigerant or the like.

[0088] At this point, by making the protrusions 68 and 69 mechanically contact the filament portions of the superconducting components 2a and 2b, it is possible to prevent the superconducting components 2a and 2b from floating up and coming into contact with the atmosphere and oxidizing. Furthermore, by maintaining a large contact area between the protrusions 68 and 69 and the superconducting material 4 and the cooling section, it is possible to facilitate efficient cooling of the container 3. Thus, even when the container 3 is a rectangular container, by designing the shape of the protrusions, it is possible to suppress the floating of the wires and maintain the contact area between the protrusions and the external cooling components.

[0089] Figure 17 and Figure 18 Another example of the implementation is shown. The method of connecting superconducting wires to each other is not limited to soldering; for example, solid-state bonding or press-fit bonding can also be used. Figure 17 and Figure 18 An example of this is shown. Figure 17 This is a diagram showing the exterior appearance. Figure 18 This is a diagram showing a cross-sectional view.

[0090] like Figure 17 and Figure 18 As shown, the container for connecting superconducting wires according to the embodiment includes: superconducting wires 9a and 9b, having superconducting elements 2a and 2b; a superconducting material 4 for electrically bonding two or more superconducting wires 9a and 9b; and a container 3 having outer walls 21a and 21b and a bottom plate 22 for holding the superconducting material 4 and the superconducting wires 9a and 9b. Here, as Figure 17 As shown, the protrusion 6a of the outer wall 21a has a cooling component 70, the protrusion 6b of the outer wall 21b has a cooling component 71, and the protrusion 6c of the outer wall 21b has a cooling component 72. Furthermore, the shapes of the cooling components 70, 71, and 72 can be various shapes such as circles, ellipses, quadrilaterals, and polygons, in addition to the shapes shown in the figure. Also, multiple protrusions 6b and 6c can be provided to suppress the floating of the superconducting components 2a and 2b.

[0091] At this time, the mechanical contact between the protrusions 6a of the outer wall 21a and the protrusions 6b and 6c of the outer wall 21b and the filaments of the superconducting components 2a and 2b can prevent the superconducting components 2a and 2b from floating up and coming into contact with the atmosphere and oxidizing. Furthermore, by maintaining a large contact area between these protrusions 6a, 6b, and 6c and the cooling components 70, 71, and 72, respectively, it can help to achieve efficient cooling of the container 3.

[0092] According to at least one embodiment described above, when generating a container for connecting superconducting wires, it is possible to prevent the filaments of the superconducting element from floating up and to improve the cooling effect of the container.

[0093] Embodiments of this utility model have been described, but these embodiments are provided as examples and are not intended to limit the scope of the utility model. These embodiments can be implemented in various other ways, and various omissions, substitutions, modifications, and combinations of embodiments can be made without departing from the spirit of the utility model. These embodiments and their variations are included in the scope and spirit of the utility model, and are also included in the scope of the technical solutions described in the claims and their equivalents.

Claims

1. A container for connecting superconducting wires, characterized by, have: Superconducting wires, containing superconducting components; Superconducting materials for electrically bonding two or more of the superconducting wires; and A container having an outer wall and a bottom plate, the outer wall holding the superconducting material and the superconducting wire, and having recesses and / or protrusions.

2. The container for connecting superconducting wires according to claim 1, characterized in that, The recesses and / or protrusions mechanically restrain the superconducting wires, thereby preventing the superconducting wires from floating within the container when two or more superconducting wires are electrically joined using the superconducting material.

3. The container for connecting superconducting wires according to claim 1, characterized in that, A cooling section is provided in the recess and / or protrusion for cooling the container through the outer wall.

4. The container for connecting superconducting wires according to claim 3, characterized in that, The cooling section is a heat transfer medium for cooling using a thermosiphon or heat pipe method.

5. The container for connecting superconducting wires according to claim 3, characterized in that, The cooling section includes an adhesive layer in contact with the outer wall and a metal component in contact with the adhesive layer.

6. The container for connecting superconducting wires according to claim 5, characterized in that, The adhesive layer is made of metal or resin.

7. The container for connecting superconducting wires according to claim 3, characterized in that, The protrusion has a shape adapted to the cooling component in the cooling section.

8. The container for connecting superconducting wires according to claim 3, characterized in that, The cooling section is constructed of copper, aluminum, SUS stainless steel, ceramic, resin, polyimide, or plastic materials, or is implemented using a refrigerant.

9. The container for connecting superconducting wires according to claim 1, characterized in that, The protrusion is a rod-shaped component.

10. The container for connecting superconducting wires according to claim 9, characterized in that, The container for connecting superconducting wires also includes a fixing part for fixing the component.

11. The container for connecting superconducting wires according to claim 1, characterized in that, The recessed portion and / or convex portion has a corrugated structure.

12. The container for connecting superconducting wires according to claim 1, characterized in that, The recess and / or convex portion is a shape formed by circular arcs.

13. The container for connecting superconducting wires according to claim 1, characterized in that, The container is a rectangular container.

14. The container for connecting superconducting wires according to claim 1, characterized in that, The superconducting wire includes a base material containing copper or a copper compound and a superconducting element disposed inside the base material. The superconducting material is a solder that exhibits superconductivity at low temperatures.

15. A superconducting magnet, characterized by, The superconducting magnet is formed by connecting the superconducting wires contained in the superconducting coil using the superconducting wire connection container as described in claim 1.

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