Superconducting cable group and superconducting magnet

Abstract

The utility model provides a superconducting cable group and a superconducting magnet. The superconducting cable group comprises a plurality of superconducting cables, a metal supporting layer and a first insulating layer. Each superconducting cable comprises a superconductor and a second insulating layer, and the second insulating layer wraps and is tightly attached to the periphery of the superconductor. A plurality of accommodating cavities arranged at intervals are formed in the metal supporting layer, the plurality of accommodating cavities are in one-to-one correspondence with the plurality of superconducting cables and are matched with the superconducting cables in shape, each superconducting cable is accommodated in the corresponding accommodating cavity, and the peripheral wall surface of the second insulating layer of each superconducting cable is attached to the inner wall of the corresponding accommodating cavity; the first insulating layer wraps the periphery of the metal supporting layer. Therefore, stable support can be provided for each superconducting cable, the shear stress of the insulating layer of the superconducting cable group under the strong magnetic field is reduced, and the stability of the insulating property is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to superconducting technical field, especially relates to a superconducting cable group and the superconducting magnet including the superconducting cable group of this. BACKGROUND

[0002] Since the fusion power is proportional to the fourth power of the magnetic field intensity, the superconducting magnet in the fusion device needs to provide higher and higher magnetic field. The electromagnetic force received by the magnet is proportional to the magnetic field intensity, so that the strong electromagnetic force that the magnet can withstand is the key factor to improve the fusion performance. The large-scale fusion magnet is mainly composed of a plurality of superconducting cables, which can be wound by cable-in-conduit conductor (CICC type) conductors. The superconducting cable generally has a conductor armor made of a metal material arranged on the outer periphery of the conductor, and a conductor insulation part made of an insulating material wrapped on the outer periphery of the conductor armor. The conductor armor is the main body to withstand the electromagnetic force, and its yield strength can reach gigapascal level, while the shear strength of the conductor insulation part outside the conductor armor can only withstand tens of megapascal.

[0003] In the common superconducting cable, the conductor insulation part is only arranged outside the conductor armor, and the conductor armor directly abuts against the superconductor. Since the superconductors at different positions of the superconducting cable are subjected to different electromagnetic forces, there is a tendency of relative movement between adjacent superconductors, so that the conductor insulation part is subjected to a large shear stress, and the stability of the performance of the conductor insulation part under the action of the strong electromagnetic force cannot be guaranteed. SUMMARY

[0004] The utility model discloses a kind of superconducting cable groups, including multiple superconducting cables, metal support layer and first insulation layer;Each superconducting cable includes superconductor and second insulation layer, second insulation layer is covered and abuts at the outer periphery of superconductor;The inside of metal support layer is formed with multiple accommodating cavities arranged at intervals, multiple accommodating cavities and multiple superconducting cables are one-to-one corresponding and shape adaptation, each superconducting cable is housed in corresponding accommodating cavity, and the outer peripheral wall surface of the second insulation layer of each superconducting cable is attached to the inner wall of corresponding accommodating cavity;First insulation layer is covered in the outer periphery of metal support layer.

[0005] To solve the above technical problems, the utility model discloses a kind of superconducting cable groups, including multiple superconducting cables, metal support layer and first insulation layer;Each superconducting cable includes superconductor and second insulation layer, second insulation layer is covered and abuts at the outer periphery of superconductor;The inside of metal support layer is formed with multiple accommodating cavities arranged at intervals, multiple accommodating cavities and multiple superconducting cables are one-to-one corresponding and shape adaptation, each superconducting cable is housed in corresponding accommodating cavity, and the outer peripheral wall surface of the second insulation layer of each superconducting cable is attached to the inner wall of corresponding accommodating cavity;First insulation layer is covered in the outer periphery of metal support layer.

[0006] The technical scheme is adopted, the plurality of accommodating cavities are arranged in the metal supporting layer, the second insulating layer is coated on the outer periphery of each superconductor to form a superconducting cable, the plurality of superconducting cables are arranged in the plurality of accommodating cavities of the metal supporting layer correspondingly, and the superconductor, the second insulating layer and the metal supporting layer are tightly arranged in sequence, and the first insulating layer is further coated on the outer periphery of the metal supporting layer, so that the metal supporting layer can provide stable support for each superconducting cable, and the relative movement between adjacent superconductors can be avoided under the strong magnetic field formed after the superconductor is energized by arranging the insulating layer between each superconductor and the metal supporting layer, thereby reducing the shear stress of the insulating layer of the superconducting cable group and ensuring the stability of the insulating performance.

[0007] According to another specific embodiment of the utility model, the superconducting cable group disclosed by the embodiment of the utility model discloses that the metal supporting layer comprises a first supporting part and a second supporting part, the first supporting part and the second supporting part are detachably connected, and a plurality of accommodating cavities are formed between the first supporting part and the second supporting part.

[0008] The technical scheme is adopted, the metal supporting layer is arranged as two parts of the first supporting part and the second supporting part which can be detachably connected, so that the installation of the superconducting cable and the metal supporting layer is facilitated.

[0009] According to another specific embodiment of the utility model, the superconducting cable group disclosed by the embodiment of the utility model discloses that the first supporting part is provided with a plurality of protrusions on the side close to the second supporting part, the second supporting part is provided with a plurality of grooves on the side close to the first supporting part, the plurality of grooves correspond to the plurality of protrusions one by one and are adaptively shaped, and the first supporting part and the second supporting part are clamped through the plurality of protrusions and the plurality of grooves.

[0010] The technical scheme is adopted, the first supporting part and the second supporting part are clamped through the plurality of protrusions and the plurality of grooves, so that the structure is simple and the stability of the connection is ensured.

[0011] According to another specific embodiment of the utility model, the superconducting cable group disclosed by the embodiment of the utility model discloses that the metal supporting layer comprises a supporting body and a plurality of supporting cover bodies, a plurality of supporting grooves are formed on one side of the supporting body, the plurality of supporting grooves correspond to the plurality of supporting cover bodies one by one and are adaptively shaped, each supporting cover body is detachably fixed in the corresponding supporting groove, and an accommodating cavity is formed between the supporting cover body and the groove bottom of the supporting groove.

[0012] The technical scheme is adopted, each superconducting cable can be placed in each supporting groove of the supporting body, and each supporting cover body is covered, so that the installation of the superconducting cable and the metal supporting layer is facilitated.

[0013] According to another specific embodiment of the present application, the superconducting cable group disclosed by the embodiment of the present application is characterized in that the superconductor is formed by alternately stacking a plurality of superconducting tapes and a plurality of metal tapes; or the superconductor is formed by winding a plurality of superconducting wires and a plurality of metal wires.

[0014] According to another specific embodiment of the present application, the superconducting cable group disclosed by the embodiment of the present application is characterized in that the cross section of the superconductor is circular, and the cross section of the superconducting cable group is rectangular.

[0015] According to another specific embodiment of the present application, the superconducting cable group disclosed by the embodiment of the present application is characterized in that the superconducting cable group is a ring-shaped column structure.

[0016] The present application also discloses a superconducting magnet, comprising a plurality of the above-mentioned superconducting cable groups, the plurality of superconducting cable groups being sequentially stacked along the height direction thereof; and the superconducting magnet further comprises a base and a top plate, the base having a bottom plate and a side plate, the bottom plate being located at the bottom of the plurality of superconducting cable groups, the side plate being fixed at one end of the bottom plate, extending along the height direction and being located at one side of the plurality of superconducting cable groups; the top plate being located at the top of the plurality of superconducting cable groups and being detachably fixedly connected with the side plate; and the plurality of superconducting cable groups being clamped and fixed between the top plate and the bottom plate along the height direction thereof.

[0017] The above technical scheme is adopted, the plurality of superconducting cable groups can be sequentially stacked on the bottom plate along the height direction thereof by setting the top plate, the base with the bottom plate and the side plate, and the plurality of superconducting cable groups are clamped and fixed between the top plate and the bottom plate along the height direction thereof after the stacking is completed through the fixation of the top plate and the side plate, the structure of the superconducting magnet is simple, the preparation method is simple and high in efficiency.

[0018] According to another specific embodiment of the present application, the superconducting magnet disclosed by the embodiment of the present application further comprises an auxiliary side plate, the auxiliary side plate extending along the height direction and being fixed at the other end of the bottom plate; and the two sides of the plurality of superconducting cable groups are respectively abutted against the inner walls of the side plate and the auxiliary side plate.

[0019] The above technical scheme is adopted, the two sides of the plurality of superconducting cable groups can be respectively abutted against the inner walls of the side plate and the auxiliary side plate by setting the auxiliary side plate, and the structural stability of the superconducting magnet is improved.

[0020] According to another specific embodiment of the present application, the superconducting magnet disclosed by the embodiment of the present application further comprises two third insulating layers, the two third insulating layers being respectively fixed between the top plate and the uppermost superconducting cable group of the plurality of superconducting cable groups, and between the bottom plate and the lowermost superconducting cable group of the plurality of superconducting cable groups.

[0021] By arranging the insulating layers between the top plate and the uppermost superconducting cable group and between the bottom plate and the lowermost superconducting cable group, the insulating performance of the superconducting magnet can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A cross-sectional structure schematic view of a specific embodiment of the superconducting cable group provided for the embodiment 1 of the present application;

[0023] Figure 2 A cross-sectional structure schematic view of another specific embodiment of the superconducting cable group provided for the embodiment 1 of the present application;

[0024] Figure 3 A cross-sectional structure schematic view of the superconducting magnet provided for the embodiment 2 of the present application;

[0025] Figure 4 A partial cross-sectional structure schematic view of the superconducting magnet provided for the embodiment 2 of the present application (not including the auxiliary side plate).

[0026] The reference signs are as follows: 10, superconducting cable group; 100, superconducting cable; 110, superconductor; 120, second insulating layer; 200, metal support layer; 210, first support part; 211, protrusion; 220, second support part; 221, groove; 230, support body; 231, support groove; 240, support cover; 300, first insulating layer; 20, base; 21, bottom plate; 22, side plate; 30, top plate; 40, third insulating layer; 50, auxiliary side plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings. Embodiment 1

[0028] In order to solve the problem that the conductor insulating part of the superconducting cable in the prior art is subjected to great shearing stress and the stability of the performance of the conductor insulating part under the action of strong electromagnetic force cannot be ensured, the present application provides a superconducting cable group, which comprises a plurality of superconducting cables and a plurality of insulating layers arranged between the superconducting cables. Figure 1 and Figure 2As shown, the superconducting cable assembly 10 includes multiple superconducting cables 100, a metal support layer 200, and a first insulating layer 300. Each superconducting cable 100 includes a superconductor 110 and a second insulating layer 120, which covers and is tightly attached to the outer periphery of the superconductor 110. Each superconductor 110 is composed of a large number of linear or strip-shaped superconducting materials and metal materials combined in a certain way. The superconductor 110 is a current carrier and can maintain zero resistance under critical conditions. In one specific embodiment, the superconductor 110 is formed by alternating stacking of multiple superconducting strips and multiple metal strips. In another specific embodiment, the superconductor 110 is formed by winding multiple superconducting wires and multiple metal wires. The superconductor 110 can be a cylindrical structure, a square column structure, a ring-shaped column structure, or other three-dimensional shape structure. The cross-section of the superconductor 110 can be circular, rectangular, or other arbitrary shapes. Here, the cross-section refers to the cross-section perpendicular to the extension direction of the superconductor 110 or the radial cross-section of the superconductor 110. In one specific embodiment, such as Figure 1 As shown, the cross-section of the superconductor 110 is circular. If the superconductor 110 has a ring-shaped cylindrical structure, its cross-section is radial; if the superconductor 110 has a cylindrical structure, its cross-section is perpendicular to its extension direction. The number of superconducting cables 100 can be two, three, or more. By setting a second insulating layer 120, electrical isolation between the superconductor 110 and the external environment can be achieved, effectively preventing current leakage. Furthermore, the second insulating layer 120 can be made by wrapping with a solid insulating material, filling and curing with a liquid insulating material, or using both solid and liquid insulating materials simultaneously.

[0029] like Figure 1 and Figure 2 As shown, the interior of the metal support layer 200 has multiple spaced-apart cavities, each corresponding to and shaped with a superconducting cable 100. Each superconducting cable 100 is housed within its corresponding cavity, and the outer peripheral wall of the second insulating layer 120 of each superconducting cable 100 is attached to the inner wall of the corresponding cavity. A first insulating layer 300 covers the outer periphery of the metal support layer 200. By providing the first insulating layer 300, the electrical isolation between the superconductor 110 and the external environment can be enhanced. Furthermore, the first insulating layer 300 can be made of a low-strength insulating material that is easy to cut, facilitating the adjustment of manufacturing errors in the metal support layer 200 through surface grinding, ensuring that the horizontal or vertical distance between adjacent superconducting cable groups 10 meets design requirements when multiple superconducting cable groups 10 are stacked.

[0030] Specifically, placing each superconducting cable 100 within its corresponding receiving cavity in the metal support layer 200 provides stable support for each cable 100, thus protecting it. It should be noted that the metal support layer 200 can be made of a high-strength metal material. The metal support layer 200 can be a square column structure, an annular column structure, or other three-dimensional shape structure with multiple receiving cavities inside. Each receiving cavity can be a cylindrical cavity, a square column cavity, an annular cavity, or other shaped cavity. For example, when the metal support layer 200 is an annular column structure, each receiving cavity can be an annular cavity, and the multiple receiving cavities are arranged at intervals in the radial direction of the metal support layer 200. In this embodiment, the number of receiving cavities is the same as the number of superconducting cables 100. Under the strong magnetic field formed after the superconductor 110 is energized, the metal support layer 200 is subjected to strong electromagnetic force. By setting the second insulating layer 120 to be closely attached between each superconductor 110 and the metal support layer 200, relative movement between adjacent superconductors 110 can be avoided, thereby reducing the shear stress of the insulation layer of the superconducting cable group 10 and ensuring the stability of the insulation performance.

[0031] It should be noted that the superconducting cable assembly 10 can be a square column structure, a ring-shaped column structure, or other three-dimensional shape. Its cross-section can be circular, rectangular, or other arbitrary shapes. Here, the cross-section refers to the section perpendicular to the extension direction of the superconducting cable assembly 10 or the radial section of the superconducting cable assembly 10. In one specific embodiment, the superconducting cable assembly 10 is a ring-shaped column structure, such as... Figure 1 As shown, the radial cross-section of the superconducting cable assembly 10 is rectangular.

[0032] In one embodiment of this utility model, such as Figure 1 As shown, the metal support layer 200 includes a first support portion 210 and a second support portion 220. The first support portion 210 and the second support portion 220 are detachably connected, and multiple receiving cavities are formed between them. Specifically, configuring the metal support layer 200 into two detachable parts, the first support portion 210 and the second support portion 220, facilitates the installation of the superconducting cable 100 and the metal support layer 200. The detachable connection methods include, but are not limited to, snap-fit ​​and screw connection. If the first support portion 210 and the second support portion 220 are screwed together, corresponding screw holes can be provided at the positions where they meet but where no receiving cavity is formed, and the screw connection can be achieved by the cooperation of threaded fasteners and screw holes.

[0033] In one embodiment of this utility model, such as Figure 1As shown, the first support part 210 is provided with a plurality of protrusions 211 on the side close to the second support part 220, and the second support part 220 is provided with a plurality of recesses 221 on the side close to the first support part 210, the plurality of recesses 221 correspond to the plurality of protrusions 211 one by one and are adaptively shaped, and the first support part 210 and the second support part 220 are clamped through the plurality of protrusions 211 and the plurality of recesses 221.

[0034] Specifically, the cross section of the protrusions 211 and the recesses 221 perpendicular to the extension direction of the metal support layer 200 or the radial cross section of the metal support layer 200 can be rectangular, trapezoidal or other shapes, as long as clamping can be achieved, and the specific setting position can be as shown in Figure 1 The protrusions 211 and the recesses 221 can be arranged between the two adjacent accommodating cavities, or on the two sides of the plurality of accommodating cavities or other positions. The clamping of the first support part 210 and the second support part 220 is achieved through the plurality of protrusions 211 and the matching plurality of recesses 221, which not only has a simple structure, but also can ensure the stability of the connection.

[0035] It should be noted that the first support part 210 can be integrally manufactured, for example, once formed by mold pouring, or can be manufactured in parts and then welded. The manufacturing method of the second support part 220 is similar to that of the first support part 210, and this embodiment will not be repeated.

[0036] In another embodiment of the present application, as shown in Figure 2 The metal support layer 200 includes a support body 230 and a plurality of support cover bodies 240, one side of the support body 230 is formed with a plurality of support recesses 231, the plurality of support recesses 231 correspond to the plurality of support cover bodies 240 one by one and are adaptively shaped, and each support cover body 240 is detachably fixed in the corresponding support recess 231 and forms an accommodating cavity with the groove bottom of the support recess 231.

[0037] Specifically, the notch of the support recess 231 is adapted to the support cover body 240, and each support cover body 240 can be completely inserted into the support recess 231 as shown in Figure 2 The part close to the groove bottom of each support cover body 240 forms an accommodating cavity with the groove bottom. Each support cover body 240 can only have the bottom inserted into the support recess 231, and the part close to the groove bottom of the bottom forms an accommodating cavity with the groove bottom. In the assembly process, each superconducting cable 100 can be placed in each support recess 231 of the support body 230, and then each support cover body 240 is inserted into the corresponding support recess 231 to realize the clamping of each support cover body 240 and the corresponding support recess 231 of the support cover body 240 and the corresponding superconducting cable 100, which is convenient for the installation of the superconducting cable 100 and the metal support layer 200.

[0038] It should be noted that the manufacturing methods of the support body 230 and the support cover 240 are similar to those of the first support part 210, and will not be described in detail in this embodiment.

[0039] It should be further explained that the superconducting cable assembly 10 provided by this utility model is prepared as follows: a superconductor 110 is formed by stranding or stacking and winding wires or strips. A second insulating layer 120 made of insulating material is then wrapped around and tightly attached to the outer periphery of the superconductor 110 to form a superconducting cable 100. Then, multiple superconducting cables 100 are placed one by one into multiple receiving cavities of the metal support layer 200, with the outer peripheral wall of the second insulating layer 120 of each superconducting cable 100 adhering to the inner wall of the corresponding receiving cavity. Finally, a first insulating layer 300 is wrapped around the outer periphery of the metal support layer 200 to form the superconducting cable assembly 10. Furthermore, after each superconducting cable 100 is placed in a receiving cavity of the metal support layer 200, liquid insulating material can be injected into the gap between the second insulating layer 120 and the receiving cavity. The liquid insulating material can then gradually solidify due to cooling, ensuring that the space between the superconductor 110 and the receiving cavity of the metal support layer 200 is fully filled with insulating material. The injection method can be mechanical injection or differential pressure injection. Example 2

[0040] The common process of making magnets from conductors involves a complex process of conductor extrusion, bending, straightening, and rewinding into coils, which is not only structurally complex but also inefficient.

[0041] To address the aforementioned technical problems, this invention also provides a superconducting magnet, such as... Figure 3 and Figure 4 As shown, the superconducting magnet includes multiple superconducting cable assemblies 10 of Embodiment 1, with the multiple superconducting cable assemblies 10 extending along their height direction ( Figure 3 The superconducting magnets are stacked sequentially in the Y direction; and the superconducting magnets also include a base 20 and a top plate 30. The base 20 has a bottom plate 21 and a side plate 22. The bottom plate 21 is located at the bottom of the multiple superconducting cable groups 10, and the side plate 22 is fixed to one end of the bottom plate 21, extends along the height direction, and is located on one side of the multiple superconducting cable groups 10. The top plate 30 is located at the top of the multiple superconducting cable groups 10 and is detachably fixed to the side plate 22. The multiple superconducting cable groups 10 are clamped and fixed between the top plate 30 and the bottom plate 21 in their height direction.

[0042] Specifically, both the base 20 and the top plate 30 are made of high-strength metal materials. The fixing connection methods for the bottom plate 21 and the side plates 22 include, but are not limited to, integral molding and welding. When the superconducting cable assembly 10 is a ring-shaped cylindrical structure, the side plate 22 can be located inside or outside the multiple superconducting cable assemblies 10 along their radial direction. The detachable fixing connection methods between the top plate 30 and the side plates 22 include, but are not limited to, threaded connections and snap-fit ​​connections. The number of superconducting cable assemblies 10 can be two, three, or more. Multiple superconducting cable assemblies 10 can be mounted on the bottom plate 21 along its height direction (…). Figure 3 The superconducting wires 10 are stacked sequentially in the Y direction. After stacking, the top plate 30 and the side plate 22 are fixed together, so that multiple superconducting wire groups 10 are clamped and fixed between the top plate 30 and the bottom plate 21 in the height direction. The structure of this superconducting magnet is simple, and the preparation method is simple and efficient.

[0043] In one embodiment of this utility model, such as Figure 3 As shown, the superconducting magnet also includes an auxiliary side plate 50, which extends along the height direction ( Figure 3 The superconducting magnet extends and is fixed to the other end of the base plate 21 (in the Y direction), that is, the end away from the side plate 22; and the two sides of the multiple superconducting cable groups 10 respectively abut against the inner walls of the side plate 22 and the auxiliary side plate 50. In this way, the structural stability of the superconducting magnet is improved by setting the auxiliary side plate 50.

[0044] In one embodiment of this utility model, such as Figure 3 As shown, the superconducting magnet also includes two third insulating layers 40, which are respectively fixed between the top plate 30 and the uppermost superconducting cable group 10 among the multiple superconducting cable groups 10, and between the bottom plate 21 and the lowermost superconducting cable group 10 among the multiple superconducting cable groups 10, thereby improving the insulation performance of the superconducting magnet.

[0045] Specifically, the third insulation layer 40 is made of a low-strength insulation material that is easy to cut. It can not only make the stacked superconducting cable group 10 and the top plate 30 and bottom plate 21 fit tightly without gaps by polishing the surface, but also play a buffering role.

[0046] It should be noted that the superconducting magnet provided by the utility model has the following preparation method: a plurality of superconducting cable groups 10 are stacked on the bottom plate 21 of the base 20 in the height direction of the superconducting cable group 10, and then the top plate 30 is located on the top of the plurality of superconducting cable groups 10, and is detachably fixedly connected with the side plate 22 (for example, the connecting position of the two can be provided with threads and connected through threads), and the plurality of superconducting cable groups 10 are clamped and fixed between the top plate 30 and the bottom plate 21 in the height direction, and each superconducting cable group 10 is in full contact and maintains a certain pressure in the height direction, so as to form the superconducting magnet. The preparation method is simple and efficient. If the superconducting cable group 10 is a ring-shaped cylindrical structure, the structure of the superconducting magnet formed by the above preparation method is also a ring-shaped cylindrical structure. If the superconducting cable group 10 is a square column structure, the superconducting magnet formed by the above preparation method is also a square column structure. Figure 4

[0047] It should be noted that in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of the utility model from the disclosure. Although the description of the utility model will be introduced together with the preferred embodiments, this does not mean that the features of the utility model are limited to this embodiment. On the contrary, the purpose of introducing the utility model with the embodiment is to cover other options or modifications that can be extended based on the claims of the utility model. In order to provide a deep understanding of the utility model, many specific details will be included in the following description. The utility model can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the utility model, some specific details will be omitted in the description. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0048] It should be noted that in this specification, similar numbers and letters in the following drawings represent similar items, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0049] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0050] The terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance. ​

[0051] In the description of the present embodiment, it also needs to be explained that, unless explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0052] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is a further detailed explanation of the present application in connection with the specific embodiments, and the specific implementation of the present application should not be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple deductions or substitutions, without departing from the spirit and scope of the present application.

Claims

1. A superconducting cable set, characterized by, The superconducting magnet comprises a plurality of superconducting cable groups, a metal support layer and a first insulation layer. Each of the superconducting cable groups comprises a superconductor and a second insulation layer, the second insulation layer being wrapped around and closely attached to the outer periphery of the superconductor. The metal support layer has a plurality of accommodating cavities arranged at intervals in the interior of the metal support layer, the plurality of accommodating cavities correspond to the plurality of superconducting cable groups one by one and are shaped to fit, each of the superconducting cable groups is accommodated in the corresponding accommodating cavity, and the outer peripheral wall surface of the second insulation layer of each of the superconducting cable groups is attached to the inner wall of the corresponding accommodating cavity. The first insulation layer is wrapped around the outer periphery of the metal support layer.

2. The superconducting cable set of claim 1, wherein, The metal support layer comprises a first support part and a second support part, the first support part and the second support part are detachably connected, and the plurality of accommodating cavities are formed between the first support part and the second support part.

3. The superconducting cable set of claim 2, wherein, The first support part is provided with a plurality of protrusions on the side close to the second support part, the second support part is provided with a plurality of grooves on the side close to the first support part, the plurality of grooves correspond to the plurality of protrusions one by one and are shaped to fit, and the first support part and the second support part are clamped by the plurality of protrusions and the plurality of grooves.

4. The superconducting cable set of claim 1, wherein, The metal support layer comprises a support body and a plurality of support covers, one side of the support body is formed with a plurality of support grooves, the plurality of support grooves correspond to the plurality of support covers one by one and are shaped to fit, and each of the support covers is detachably fixed in the corresponding support groove to form the accommodating cavities with the groove bottom of the support groove.

5. The superconducting cable set of any one of claims 1-4, wherein, The superconductor is formed by alternately stacking a plurality of superconducting tapes and a plurality of metal tapes. Alternatively, the superconductor is formed by winding a plurality of superconducting wires and a plurality of metal wires.

6. The superconducting cable set of any one of claims 1-4, wherein, The cross section of the superconductor is circular, and the cross section of the superconducting cable group is rectangular.

7. The superconducting cable set of any one of claims 1-4, wherein, The superconducting cable group is a ring-shaped cylindrical structure.

8. A superconducting magnet, characterized by, The superconducting magnet further comprises a base and a top plate, the base has a bottom plate and a side plate, the bottom plate is located at the bottom of the plurality of superconducting cable groups, the side plate is fixed at one end of the bottom plate, extends along the height direction and is located at one side of the plurality of superconducting cable groups, and the top plate is located at the top of the plurality of superconducting cable groups and is detachably fixedly connected with the side plate; the plurality of superconducting cable groups are clamped and fixed between the top plate and the bottom plate in the height direction. The superconducting magnet further comprises an auxiliary side plate, the auxiliary side plate extends along the height direction and is fixed at the other end of the bottom plate.

9. The superconducting magnet of claim 8, wherein, The two sides of the plurality of superconducting cable groups respectively abut against the inner walls of the side plate and the auxiliary side plate. The superconducting magnet further comprises two third insulation layers, the two third insulation layers are respectively fixed between the top plate and the uppermost superconducting cable group among the plurality of superconducting cable groups and between the bottom plate and the lowermost superconducting cable group among the plurality of superconducting cable groups.

10. The superconducting magnet of claim 8 or 9, wherein, ​

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