Modularized runway-shaped coil with superconducting tape and coil framework tightly attached

Abstract

The invention discloses a superconducting tape and coil framework clinging type modular runway-shaped coil, and belongs to the technical field of power generation, power transformation or power distribution. The modular runway-shaped coil comprises a coil support, at least one electrode terminal and at least one layer of strip coil, the coil supporting piece comprises a coil framework, at least one layer of strip coil is wound on the coil framework, a current leading-out wire of each layer of strip coil is welded to an electrode terminal and then led out, the coil framework is of a structure composed of four arc sections and four connecting sections, and the outer side of the coil framework is provided with a rectangular fillet and an arc outline. At least one connecting section is an arc section, and the circle where the two arc sections adjacent to the arc section are located is internally connected with the arc where the arc section is located, so that the strip coil is tightly attached to the coil framework, and the structural compactness of the coil is improved.

Description

Technical Field

[0001] The invention discloses a modularized racetrack-shaped coil with a superconducting tape and a coil frame in close contact, relates to electrical and mechanical transmission equipment, and belongs to the technical field of power generation, power transformation or power distribution. Background Art

[0002] With the continuous development of superconducting materials and cryogenic application technology, superconducting coils are widely used in nuclear magnetic equipment, magnetic confinement fusion devices, accelerators, and electrical equipment. Depending on the application, superconducting coils are designed and manufactured in shapes such as round pancakes, D-shaped, spiral, saddle, and runway. Since the runway-shaped coil has straight and arc segments of different lengths, the winding of superconducting tape is more difficult, especially the superconducting tape in the long straight segment is difficult to fit tightly on the coil frame, making the runway-shaped coil very prone to turn-to-turn displacement and friction in a complex electromagnetic environment, which in turn increases the risk of superconducting coil quenching.

[0003] Chinese patent CN108809052A discloses a superconducting motor using a racetrack-shaped superconducting sheet stacked coil. The prepared racetrack-shaped coil is fixed on the boss of the magnetic yoke, and the gap between the racetrack-shaped coil and the boss is filled with epoxy resin. Although the racetrack-shaped superconducting coil structure is drawn in the attached figure, it is actually just an ideal coil diagram that does not consider the mechanical properties of the superconducting tape. In fact, due to the mechanical stress of the superconducting tape, the coil of the long straight section will definitely bulge, resulting in an inevitable gap between the racetrack-shaped coil and the boss of the magnetic yoke, which has to be filled with epoxy resin. This not only increases the process and cost, but also causes additional mechanical stress caused by different low-temperature shrinkage rates of materials, threatening the safe and reliable operation of superconducting coils; Chinese patent CN106535079A discloses a forming method and a forming device for a racetrack-shaped coil, which can improve the forming quality of the racetrack-shaped coil by sleeve- ing an elliptical coil on a pair of fixed support columns and using a pair of extrusion tools to simultaneously squeeze the coil from both sides of the outside of the coil inward. This patent is obviously not suitable for high-temperature superconducting tapes that are sensitive to mechanical tension or pressure, and it is also difficult to ensure the close fit between the racetrack-shaped coil and the coil skeleton. At the same time, since the superconducting tape is wound on the coil skeleton, the coil skeleton with a reasonable structure and conducive to cooling is the key to ensuring the reliable operation and efficient cooling of the modular racetrack-shaped coil. However, the currently disclosed skeleton for the racetrack-shaped coil mainly presents a single rectangular rounded shape, which is very unfavorable for the winding of the superconducting tape.

[0004] The present invention aims to provide a modular racetrack-shaped coil in which a superconducting tape is in close contact with a coil frame, so as to overcome the deficiencies of the prior art and has important theoretical significance and application value for improving the close contact between the superconducting tape and the coil frame and enhancing the overall mechanical strength of the modular racetrack-shaped coil. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned background technology and to provide a modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact, so as to solve the technical problems that the traditional racetrack-shaped coil is difficult to fit closely to the frame, the amount of end wire is large, and the coil structure is low in compactness, thereby achieving the purpose of the invention of closely fitting the superconducting tape and the frame.

[0006] The present invention adopts the following technical solutions to achieve the above-mentioned invention object: A modular racetrack-shaped coil in which a superconducting tape and a coil frame are tightly attached, comprising: a coil support, at least one electrode terminal and at least one layer of tape coil; the coil support comprises a coil frame, at least one layer of tape coil is wound on the coil frame, each layer of tape coil is welded to an electrode terminal, the coil frame is composed of four arc segments and four connecting segments, and the outer side presents a rectangular fillet and arc contour, at least one connecting segment is an arc segment, and the circle where two arc segments adjacent to the arc segment are located is inscribed in the arc where the arc segment is located.

[0007] As a further optimization scheme for a modular racetrack-shaped coil in which a superconducting tape is tightly attached to a coil frame, the ratio of the arch height of the arc segment to the chord length is 1 / 100~1 / 50.

[0008] As a further optimization scheme for a modular racetrack-shaped coil in which a superconducting tape is tightly attached to a coil frame, the coil support also includes: an upper cover plate and a lower cover plate, which are respectively located on the upper and lower sides of the coil frame, and both the upper cover plate and the lower cover plate are provided with cover plate bolt holes and plate holes.

[0009] As a further optimization solution for the modular racetrack-shaped coil in which the superconducting tape is tightly attached to the coil frame, coil frame bolt holes are opened on the coil frame.

[0010] As a further optimization scheme for the modular racetrack-shaped coil with superconducting tape and coil frame in close contact, at least one pair of electrode bolt holes is opened on the upper cover plate and the lower cover plate, each pair of electrode bolt holes includes two electrode bolt holes, and an electrode limit groove is opened between the two electrode bolt holes.

[0011] As a further optimization scheme for a modular racetrack-shaped coil in which a superconducting tape is tightly attached to a coil frame, a fastening bolt hole and an electrode limiting edge are provided on the upper side of the electrode terminal, a current lead fixing bolt hole is provided on the front side of the electrode terminal, and the electrode limiting edge is located in the middle of two adjacent fastening bolt holes; when the electrode terminal is placed in the space area between the upper cover plate and the lower cover plate, the electrode limiting edge is engaged with the electrode limiting groove.

[0012] As a further optimization solution for the modular racetrack-shaped coil in which the superconducting tape is tightly attached to the coil frame, the coil support also includes at least one intermediate partition plate disposed outside the coil frame, and each intermediate partition plate is used to separate two adjacent layers of tape coils.

[0013] As a further optimization scheme for the modular racetrack-shaped coil in which the superconducting tape is tightly attached to the coil frame, the middle partition plate is a hollow rectangular structure, and the hollow rectangular structure is provided with a middle opening of the middle partition plate and a front opening of the middle partition plate.

[0014] As a further optimization solution for a modular racetrack-shaped coil in which a superconducting tape is tightly attached to a coil frame, after at least one layer of tape coil is wound on the coil frame, each component in the coil support is fastened by a fastening assembly.

[0015] As a further optimization scheme for a modular racetrack-shaped coil with superconducting tape and coil frame in close contact, each layer of tape coil is welded to the front side of an electrode terminal, the current lead is led out from the current lead fixing bolt hole, and the electrode terminal is fastened to the coil support by fasteners.

[0016] The present invention adopts the above technical solution and has the following beneficial effects: (1) The modularized racetrack-shaped coil proposed in the present invention obtains a skeleton structure with rectangular rounded corners and arc contours on the outside by designing the straight segments of the coil skeleton. The skeleton structure has the structural characteristics of short ends and a circular arc in the middle, which saves the amount of end strip material and realizes the close fit between the strip coil and the coil skeleton, thereby improving the compactness of the coil structure and reducing the risk of superconducting coil quenching in a complex electromagnetic environment.

[0017] (2) The modularized runway-shaped coil proposed in the present invention optimizes the arc shape design of the straight section of the coil skeleton so that the arc shape design of the skeleton structure meets the minimum curvature requirement of the strip bending and meets the engineering requirements of the strip coil winding.

[0018] (3) The modularized racetrack-shaped coil proposed in the present invention optimizes the design of the upper and lower cover plates that constitute the coil support together with the coil frame. While the electrode bolt holes are opened on the cover plates, limit grooves for installing and fixing the electrode terminals are reserved, thereby reducing the local displacement of the strip coil caused by tightening the electrode bolts and realizing the reliable lead-out of the strip coil current lead. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional view of a modular racetrack-shaped coil in which a superconducting tape and a coil skeleton are closely attached to each other according to the present invention.

[0020] Figure 2 It is an exploded view of a modular racetrack-shaped coil in which a superconducting tape and a coil skeleton are closely attached to each other according to the present invention.

[0021] Figure 3 It is a schematic diagram of the upper cover plate of the modular racetrack-shaped coil in which the superconducting tape and the coil frame are in close contact with each other according to the present invention.

[0022] Figure 4 Schematic diagram of the top cover plate from above.

[0023] Figure 5 It is a partial schematic diagram of the electrical limit slot of the upper cover plate.

[0024] Figure 6 It is a schematic diagram of the coil frame in the modular racetrack-shaped coil of the present invention in which the superconducting tape and the coil frame are tightly attached.

[0025] Figure 7 Schematic diagram of the coil skeleton from top view.

[0026] Figure 8 It is a schematic diagram of the strip coil after being wound on the coil frame.

[0027] Fig. 9 It is a schematic diagram of the middle partition plate in the modular racetrack-shaped coil of the present invention in which the superconducting tape and the coil frame are in close contact.

[0028] Fig.10 It is a schematic diagram of the electrode terminals in the modular racetrack-shaped coil of the present invention in which the superconducting tape is tightly attached to the coil frame.

[0029] Explanation of the reference numerals: 1. upper cover plate, 2. middle partition plate, 3. lower cover plate, 4. upper strip coil, 5. lower strip coil, 6. first electrode terminal, 7. second electrode terminal, 8. fastener, 9. coil frame, 101. plate hole, 102. cover plate bolt hole, 103. electrode bolt hole, 104. electric limit groove, 201. front opening of the middle partition plate, 202. middle opening of the middle partition plate, 601. current lead fixing bolt hole, 602. fastening bolt hole, 603. electric limit edge, 8010. first fastening bolt, 8020. second fastening bolt, 8030. third fastening bolt, 8040. fourth fastening bolt, 8050. fifth fastening bolt, 8060. sixth Fastening bolt, 8070, seventh fastening bolt, 8080, eighth fastening bolt, 8090, ninth fastening bolt, 80100, tenth fastening bolt, 8011, first fastening nut, 8021, second fastening nut, 8031, third fastening nut, 8041, fourth fastening nut, 8051, fifth fastening nut, 8061, sixth fastening nut, 8071, seventh fastening nut, 8081, eighth fastening nut, 8091, ninth fastening nut, 80110, tenth fastening nut, 901, coil skeleton bolt hole, 902, coil skeleton arc segment, 9031, first circular arc segment, 9032, second circular arc segment, 9033, third circular arc segment, 9034, fourth circular arc segment. DETAILED DESCRIPTION

[0030] The technical solution of the invention is described in detail below with reference to the accompanying drawings.

[0031] Without loss of generality, and for the convenience of illustrating the present invention, establish Figure 1 The xyz rectangular coordinate system shown, wherein the -y direction is the front side, the y direction is the back side, the x direction is the right side, the -x direction is the left side, the z direction is the upper side, and the -z direction is the lower side.

[0032] Figure 1 and Figure 2 They are respectively a three-dimensional view and an exploded view of a modular racetrack-shaped coil of the present invention that is in close contact with a superconducting tape and a coil skeleton. The modular racetrack-shaped coil comprises: an upper cover plate 1, an intermediate partition plate 2, a lower cover plate 3, an upper strip coil 4, a lower strip coil 5, a first electrode terminal 6, a second electrode terminal 7, a fastener 8, and a coil skeleton 9. The fastener 8 serves to fasten the various components and thereby improve the integrity of the modular racetrack-shaped coil. The upper cover plate 1, the intermediate partition plate 2, the lower cover plate 3, and the coil skeleton 9 constitute a coil support for winding the superconducting tape.

[0033] The coil support can be made of one or more non-magnetic, high mechanical strength materials such as 6061 aluminum alloy, epoxy glass fiber, copper, stainless steel, etc. The same material is preferably used to avoid local stress concentration and cracking due to different low-temperature shrinkage rates of the materials. The coil skeleton 9 is located at the center of the coil support, the upper cover plate 1 and the lower cover plate 3 are respectively located on the upper and lower sides of the coil skeleton 9, and the middle partition plate 2 is sleeved on the outside of the coil skeleton 9. After the upper strip coil 4 and the lower strip coil 5 are wound on the coil skeleton 9, the middle partition plate 2 serves to separate the upper strip coil 4 and the lower strip coil 5.

[0034] The upper cover plate and the lower cover plate in the modular racetrack-shaped coil of the present invention, which is close to the superconducting tape and the coil skeleton, are usually of the same shape and structure, so as to facilitate batch processing and manufacturing. The upper cover plate or the lower cover plate as a whole presents a thin plate structure and a racetrack shape, and has a certain thickness, which should generally be greater than 1 mm to ensure mechanical strength. The structure of the upper cover plate and the lower cover plate of the present invention is exemplified below by taking the upper cover plate as an example. Figure 3 As shown, the upper cover plate 1 is provided with plate holes 101, cover plate bolt holes 102 and electrode bolt holes 103. The main function of the plate hole 101 is to reduce the weight of the upper cover plate itself and increase the contact area between the superconducting tape and the refrigerant. When designing for weight reduction, the shape and position of the hole need to be considered, and the surrounding areas of the fasteners and the corner areas should be avoided as much as possible. Under the premise of ensuring mechanical strength, the cover plate bolt holes 102 and the electrode bolt holes 103 generally adopt a countersunk hole design to reduce the thickness and volume of the entire modular runway-shaped coil and improve the surface flatness of the entire modular runway-shaped coil.

[0035] Figure 4 and Figure 5 It is a schematic diagram of the inner side of the upper cover plate and a partial schematic diagram. Preferably, an electrode limit groove 104 is designed between adjacent electrode bolt holes 103. In this embodiment, the electrode limit groove on the upper cover plate 1 is formed by opening a groove body with a height of 0.5 mm, a width of 0.5 mm, and a length of 30 mm. The size of the groove body needs to be determined in combination with the size of the electrode terminal and the thickness and mechanical strength of the upper and lower cover plates.

[0036] Figure 6 for Figure 7It is a schematic diagram of the coil skeleton in the modular racetrack-shaped coil of the superconducting tape and coil skeleton close-fitting type of the present invention, wherein the inner side of the coil skeleton 9 presents a rectangular rounded corner contour, namely four arc segments and four straight line segments; the outer side of the coil skeleton 9 presents a rectangular rounded corner and arc contour, namely four arc segments and two straight line segments and two arc segments, the two straight line segments are located at the short side segments, and the two arc segments are located at the long side segments, namely there are two coil skeleton arc segments 902, and the arc where the arc segment is located can be a circular arc or an elliptical arc, but it is necessary to ensure that the circle where the two adjacent arc segments of the arc are located is inscribed in the arc, namely the circle where the first arc segment 9031 and the third arc segment 9033 are located is inscribed in the arc where one line segment skeleton arc segment 902 is located, and the circle where the second arc segment 9032 and the fourth arc segment 9034 are located is inscribed in the arc where another line segment skeleton arc segment 902 is located, so as to ensure the continuity of the arc. The coil frame 9 is provided with six coil frame bolt holes 901 , which are generally through holes or threaded holes.

[0037] This embodiment also provides an optimized design scheme for the arc segment of the coil skeleton, such as Figure 7 As shown, the arc line where the line skeleton arc line segment 902 is located is defined as C2, the center of the arc line is o2, and the radius is R2; the arc line where the rectangular fillet is located is C1, the center of C1 is o1, and the radius is R1. Generally, R2 is much larger than R1, h2 is the arch height of C2, and the ratio of h2 to the chord length determined by C2 is 1 / 100~1 / 50. The design of the arch height can ensure that the arc line segment of the coil skeleton is inscribed in the circle where the two adjacent arcs are located, so that the strip of the arc line segment is slightly bent, thereby making the strip fit the coil skeleton arc line segment as much as possible, and at the same time will not cause a large change in the size of the coil skeleton. The arc line and the two adjacent arcs should meet the requirements of the minimum curvature of the strip bending.

[0038] Figure 8 This is a top view of the strip coil after it is wound on the coil skeleton. Taking the upper strip coil 4 as an example, it can be seen that the inner side of the upper strip coil 4 also maintains the same curvature as the coil skeleton arc segment 902, which can ensure that the upper strip coil 4 is in close contact with the coil skeleton 9. The inner curvature of the upper strip coil 4 is naturally formed when the superconducting tape is wound layer by layer, and has the advantages of uniform stress distribution and tight winding.

[0039] Fig. 9 This is a schematic diagram of the intermediate partition plate in the modular racetrack-shaped coil in which the superconducting tape and the coil frame are tightly attached to each other in the present invention. The intermediate partition plate 2 has a thin plate structure and a racetrack shape and has a certain thickness, which should generally be greater than 1 mm to ensure mechanical strength. It serves the purpose of separating the upper tape coil 4 and the lower tape coil 5. The inner contour of the intermediate partition plate 2 is slightly larger than the outer wheel contour of the coil frame 9 by 0.1~0.5 mm, so that the intermediate partition plate 2 can be placed on the outside of the coil frame 9.

[0040] A middle-section opening 202 of the middle partition plate is provided in one long side of the middle partition plate 2, so that when the middle partition plate 2 is placed outside the coil frame 9, a path is reserved for the superconducting tape to pass through.

[0041] A middle partition plate front section opening 201 is provided in one short side of the middle partition plate 2, and the aperture can be set as required, generally about 1 mm, to facilitate the lead-out and partial fixation of the voltage lead wires in the upper strip coil 4 and the lower strip coil 5. The positions of the middle section opening 202 of the middle partition plate and the middle partition plate front section opening 201 can be adjusted according to the position of the voltage lead wire in the strip coil and the need for winding.

[0042] Fig.10 This is a schematic diagram of the electrode terminals in the modular racetrack-shaped coil in which the superconducting tape and the coil frame are tightly attached to each other in the present invention. There are two motor terminals, and their materials are generally red copper or oxygen-free copper. A fastening bolt hole 602 and an electric limit rib 603 are provided on the upper side of the first electrode terminal 6 and the second electrode terminal 7, and a current lead fixing bolt hole 601 is provided on the front side. The electric limit rib 603 is located in the middle of two adjacent fastening bolt holes 602. The height, width and length of the electric limit rib are generally smaller than the height, width and length of the aforementioned electric limit groove 104 to ensure smooth installation and fixation.

[0043] The electric limit groove 104 and the electric limit rib 603 additionally serve as the limiting mechanism of the first electrode terminal 6 and the second electrode terminal 7, that is, after the front sides of the first electrode terminal 6 and the second electrode terminal 7 are reliably welded to the upper strip coil 4 and the lower strip coil 5, the first electrode terminal 6 and the second electrode terminal 7 need to be tightened, and the current lead also needs to be tightened on the first electrode terminal 6 and the second electrode terminal 7. If there is no limiting mechanism, the above tightening process will definitely cause the first electrode terminal 6 and the second electrode terminal 7 to shake, and the shaking will cause the local displacement of the upper strip coil 4 and the lower strip coil 5, and even cause irreversible twisting, bending and damage of the superconducting tape, which will cause the superconducting coil to quench in severe cases. Therefore, the electric limit groove 104 and the electric limit rib 603 are also an important innovation of the present invention.

[0044] Through the explanation of the above drawings, the installation relationship of each component in the modular runway-shaped coil of the superconducting tape and the coil frame close-fitting type of the present invention has been clearly demonstrated, which is beneficial for technical personnel in the field to implement the present invention. The first fastening bolt 8010 and the first fastening nut 8011 constitute a group of fasteners. Similarly, the second fastening bolt 8020 and the second fastening nut 8021 constitute a second group of fasteners..., and the tenth fastening bolt 80100 and the tenth fastening nut 80110 constitute a tenth group of fasteners. After the upper strip coil 4 and the lower strip coil 5 are wound on the coil frame 9, the coil support is fastened by the first to sixth groups of fasteners, specifically: the fastening bolts pass through the bolt holes on the lower cover, the bolt holes on the coil frame, and the bolt holes on the lower cover, and are fastened with the fastening nuts; the front sides of the first electrode terminal 6 and the second electrode terminal 7 are welded to the upper strip coil 4 and the lower strip coil 5 respectively, and the current lead is led out from the current lead fixing bolt hole 601 of the electrode terminal, and the electrode terminal is fastened to the coil support by the seventh to tenth groups of fasteners, specifically: the fastening bolts pass through the electrode bolt holes on the lower cover, the fastening bolt holes 602 of the electrode terminal, and the electrode bolt holes on the lower cover, and are fastened with the fastening nuts.

[0045] The above is only an embodiment of the present invention, and more specifically, it is an embodiment of a modular racetrack-shaped coil having two layers of superconducting coils, namely, an upper strip coil 4 and a lower strip coil 5, having an upper cover plate 1, an intermediate partition plate 2, a lower cover plate 3 and a coil skeleton 9, two electrode terminals and 10 sets of fasteners, and the structural diagram and combination relationship of each component are given. However, this embodiment is not used to limit the present invention, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention, such as replacing the upper strip coil 4 and the lower strip coil 5 with other layers, such as one layer, three layers, four layers, five layers..., an intermediate partition plate is provided between two adjacent layers of strip coils, the four straight segments of the coil skeleton 9 are all updated to arc segments, or the fasteners are modified to other shapes or technologies to fasten the components, should be included in the protection scope of the present invention.

[0046] It should be noted that, in the embodiments, directional nouns such as "upper side", "lower side", "left side", "right side", "front side", "back side", "outer side", "inner side", or quantitative pronouns such as "a kind" and "an" are introduced, which should not be understood as limitations on the present invention, but are for the purpose of facilitating the explanation of the combination relationship of different components and the specific details of the present invention.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact, characterized in that: include: A coil support, at least one electrode terminal and at least one layer of strip coil; the coil support comprises a coil skeleton, the at least one layer of strip coil is wound on the coil skeleton, each layer of strip coil is welded to an electrode terminal, the coil skeleton is composed of four arc segments and four connecting segments, and the outer side presents a rectangular fillet and arc contour structure, at least one connecting segment is an arc segment, and the circle where two arc segments adjacent to the arc segment are located is inscribed in the arc where the arc segment is located.

2. According to claim 1, a modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact, characterized in that: The ratio of the arch height to the chord length of the arc where the arc segment is located is 1 / 100 to 1 / 50.

3. A modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact with each other according to claim 1 or 2, characterized in that: The coil support also includes an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are respectively located on the upper side and the lower side of the coil frame, and the upper cover plate and the lower cover plate are both provided with cover plate bolt holes and plate holes.

4. According to claim 3, a modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact, characterized in that: The coil frame is provided with coil frame bolt holes.

5. A modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact with each other according to claim 4, characterized in that: At least one pair of electrode bolt holes is also formed on the upper cover plate and the lower cover plate, each pair of electrode bolt holes includes two electrode bolt holes, and an electrical limit groove is formed between the two electrode bolt holes.

6. A modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact with each other according to claim 5, characterized in that: A fastening bolt hole and an electrode limiting edge are provided on the upper side of the electrode terminal, and a current lead fixing bolt hole is provided on the front side of the electrode terminal. The electrode limiting edge is located in the middle of two adjacent fastening bolt holes; when the electrode terminal is placed in the space area between the upper cover plate and the lower cover plate, the electrode limiting edge is engaged with the electrode limiting groove.

7. A modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact with each other according to claim 6, characterized in that: The coil support also includes at least one middle partition plate disposed outside the coil frame, and each middle partition plate is used to separate two adjacent layers of strip coils.

8. The modular racetrack-shaped coil with superconducting tape and coil frame in close contact according to claim 7, characterized in that: The middle partition plate is a hollow rectangular structure, and the middle partition plate middle section opening and the middle partition plate front section opening are provided on the hollow rectangular structure.

9. A modular racetrack-shaped coil with a superconducting tape and a coil frame in close contact with each other according to claim 8, characterized in that: After the at least one layer of strip coil is wound on the coil frame, each component in the coil support is fastened by a fastening component.

10. The modular racetrack-shaped coil with superconducting tape and coil frame in close contact with each other according to claim 8, characterized in that: Each layer of strip coil is welded to the front side of an electrode terminal, the current lead is led out from the current lead fixing bolt hole, and the electrode terminal is fastened and connected to the coil support by a fastener.

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