Novel conical surface superconducting magnet structure
By optimizing the cooling path and structural design of the superconducting coil, the problems of large temperature gradient and low cooling efficiency in traditional cylindrical superconducting magnets have been solved, achieving more efficient cooling and more stable magnetic field performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional cylindrical superconducting magnets suffer from problems such as large temperature gradients, structural stress concentration, and low cooling efficiency.
A novel conical superconducting magnet structure is adopted. By using binding layers to wind the superconducting coil in layers around its outer periphery and installing limiting copper blocks between the upper and lower cooling plates, multiple parallel cooling paths are formed, optimizing the cooling paths. Combined with radial groove and cold hole design, uniform distribution of cooling is achieved.
It significantly reduces the coil temperature gradient, improves cooling efficiency, accelerates the magnet's entry into the superconducting state, enhances magnetic field performance stability and structural stress uniformity, and simplifies manufacturing and assembly methods.
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Figure CN121662542A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of superconducting magnet technology, and more specifically, to a novel conical superconducting magnet structure. Background Technology
[0002] As a key component for achieving a strong magnetic field environment, superconducting magnets rely on extremely low temperatures and strong electromagnetic field conditions for operation. Therefore, they have extremely high requirements for structural form, cooling path, and overall stability. The structural design and cooling method of existing superconducting magnets directly affect the temperature distribution and thermal stability of the coil, which in turn determines its working performance and reliability. With the continuous progress of scientific research and engineering technology, superconducting technology is being applied more and more widely in various fields.
[0003] In high magnetic field applications, superconducting coils typically need to withstand enormous electromagnetic forces and thermal loads. To meet the demands of strong magnetic fields while maintaining economic efficiency, the industry often uses a combination of superconducting wires of various specifications to replace traditional single-specification wires. Although this method has advantages in terms of cost and process flexibility, the differences in mechanical properties and thermal expansion between different wires introduce additional structural complexity. If the winding method is not reasonable, it can easily cause problems such as uneven local stress, unbalanced magnetic field distribution, and thermal instability. Traditional cylindrical superconducting magnets generally use skeleton conduction or outer copper clamping for cooling. Such structures have extremely high requirements for the thermal conductivity, mechanical strength, and processing precision of the skeleton material. At the same time, the added mass of the copper clamp and the interfacial contact thermal resistance will significantly affect the overall cooling efficiency. Due to the limited cold transfer path, the internal temperature gradient of the coil is obvious, which is not conducive to the rapid establishment of the superconducting state and can easily lead to local overheating, performance degradation, or even magnet loss of superconductivity. Summary of the Invention
[0004] The present invention aims to solve the problems of large temperature gradient, structural stress concentration and low cooling efficiency of traditional cylindrical superconducting magnets.
[0005] To address the aforementioned problems, this invention provides a novel conical superconducting magnet structure, comprising a frame and a main cooling plate. Superconducting coils are mounted on both the upper and lower sides of the frame, and binding layers are provided on the exterior of both superconducting coils. An upper cooling plate is provided on the top of the upper superconducting coil, and a lower cooling plate is provided on the bottom of the lower superconducting coil. One end of the main cold plate is located at the bottom of the lower cold plate, and the other end is connected to the cold source. Limiting copper blocks are evenly installed between the upper cold plate and one end of the main cold plate along the outer circumference of the binding layer.
[0006] The present invention provides a novel conical superconducting magnet structure, which, compared with the prior art, has, but is not limited to, the following beneficial effects: This novel conical superconducting magnet structure involves fixing two superconducting coils, upper and lower, to a frame. The superconducting coils are then wound in layers around their outer periphery using a binding layer for insulation and position fixation. A cooling plate is installed on the upper surface of the upper superconducting coil, and a lower cooling plate on the lower surface of the lower superconducting coil. A main cooling plate is then installed at the bottom of the lower cooling plate. Limiting copper blocks are evenly installed along the outer circumference of the binding layer between the upper and main cooling plates. These peripheral limiting copper blocks facilitate heat transfer while simultaneously restricting the superconducting coil's displacement. Finally, the cold source is connected to the other end of the main cooling plate. Upon activation, the cold energy is first transferred to the main cooling plate via a connector, then to the lower cooling plate, and finally to the bottom surface of the lower superconducting coil. This ensures uniform heat distribution on the lower superconducting coil's end face. Simultaneously, the lower cooling plate transfers heat to the limiting copper blocks, which in turn transfer it to the upper cooling plate. The plate and the outer periphery of the superconducting coil are connected to the top surface of the upper superconducting coil through the upper cold plate, so that the cold energy is evenly distributed on the end face of the upper superconducting coil and finally transferred to the inside of the superconducting coil, ensuring the radial cooling of the superconducting coil and achieving uniform cooling of the superconducting coil. The above structural arrangement forms multiple parallel conduction paths. When the cold source starts to cool, it is quickly transferred to the outer surface of the superconducting coil through each limiting copper block, thereby significantly reducing the coil temperature gradient, improving the cooling efficiency, and accelerating the speed at which the magnet enters the superconducting state. In this way, by optimizing the cooling path of the superconducting coil, highly flexible magnetic field configuration control is achieved, so that the magnet has higher cooling efficiency, more uniform structural stress, more stable magnetic field performance, and more convenient manufacturing and assembly methods in strong magnetic field and low temperature environments, so as to overcome the problems of large temperature gradient, structural stress concentration and low cooling efficiency of existing cylindrical superconducting magnets.
[0007] Furthermore, a radial groove is formed on the frame along the length direction of the main cold plate; A diode is mounted on the main cold plate, and the superconducting coil is connected to the diode from the radial slot.
[0008] Furthermore, the outer circumferential wall of the skeleton is provided with seven cold holes, and the cold holes are connected to the inner cavity of the skeleton. The radial groove and the seven cold holes are evenly distributed on the skeleton, and the position of any one of the cold holes corresponds to the position between two adjacent limiting copper blocks.
[0009] Furthermore, the main cooling system includes an extension section and a support section, the support section being located at the bottom of the lower cooling plate, the radial groove being positioned corresponding to the extension section, and the diode being mounted on the extension section.
[0010] Furthermore, a cable tray is provided at the radial slot opening, the cable tray is located between two adjacent limiting copper blocks, and the bottom end of the cable tray is mounted on the extension section.
[0011] Furthermore, the inner ring of the superconducting coil has a conical geometry.
[0012] Furthermore, the superconducting coil is made of multi-specification concentric winding superconducting wire and is formed by stacking multiple coil units along the magnet axis. The inner diameter of each coil unit changes step by step, so that the inner ring of the superconducting coil has a continuous conical shape.
[0013] Furthermore, the outer surfaces of both superconducting coils are covered with a copper layer with a high RRR value, and the copper layer is formed by pressure molding to form a complete thermal coupling interface with the superconducting coil.
[0014] Furthermore, the limiting copper blocks are made of oxygen-free copper TU1, and there are eight of them. The eight limiting copper blocks are arranged in a ring array around the outer periphery of the binding layer. The upper and lower ends of the inner sidewall of the limiting copper blocks are respectively attached to the outer wall of the corresponding binding layer, and the middle section of the inner sidewall of the limiting copper blocks is attached to the outer wall of the skeleton.
[0015] Furthermore, the skeleton is made of 6061-T6 material. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the novel conical superconducting magnet according to an embodiment of the present invention; Figure 2 For the present invention Figure 1 A half-section view; Figure 3 For the present invention Figure 1 A bottom view; Figure 4 This is a schematic diagram of the skeleton structure of an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation structure between the superconducting coil, the skeleton, and the binding layer in an embodiment of the present invention.
[0017] Explanation of reference numerals in the attached figures: 1. Superconducting coil; 2. Binding layer; 3. Limiting copper block; 4. Skeleton; 401. Radial groove; 402. Cold hole; 5. Main cold plate; 501. Extension section; 502. Support section; 6. Diode; 7. Cable tray; 8. Upper cold plate; 9. Lower cold plate. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.
[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit the use of open-ended terms such as "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.
[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0024] See Figures 1-3 A novel conical superconducting magnet structure according to an embodiment of the present invention includes a frame 4 and a main cooling plate 5. Superconducting coils 1 are installed on both the upper and lower sides of the frame 4. Binding layers 2 are provided on the outside of both superconducting coils 1. An upper cooling plate 8 is provided on the top of the upper superconducting coil 1, and a lower cooling plate 9 is provided on the bottom of the lower superconducting coil 1. One end of the main cold plate 5 is located at the bottom of the lower cold plate 9, and the other end is connected to the cold source. Limiting copper blocks 3 are evenly installed between the upper cold plate 8 and one end of the main cold plate 5 along the outer circumference of the binding layer 2.
[0025] In this embodiment, the novel conical superconducting magnet structure is constructed by fixing two superconducting coils 1 to a frame 4, then using a binding layer 2 to wind the superconducting coils 1 in layers around their outer periphery for insulation and position fixation. A cooling plate 8 is installed on the upper surface of the upper superconducting coil 1, and a lower cooling plate 9 is installed on the lower surface of the lower superconducting coil 1. A main cooling plate 5 is then installed at the bottom of the lower cooling plate 9. Limiting copper blocks 3 are evenly installed along the outer periphery of the binding layer 2 between the upper cooling plate 8 and the main cooling plate 5. The surrounding limiting copper blocks 3 achieve heat transfer while limiting the deviation of the superconducting coil 1. Finally, the cold source is connected to the other end of the main cooling plate 5. After the cold source is activated, the heat is first transferred to the main cooling plate 5 through the connector, and then to the lower cooling plate 9 through the main cooling plate 5. The lower cooling plate 9 contacts the bottom surface of the lower superconducting coil 1, achieving uniform distribution of heat on the end face of the lower superconducting coil 1. At the same time, the lower cooling plate 9 transfers heat to each limiting copper block 3, and through the external limiting copper blocks 3, the heat is also transferred to the limiting copper blocks 3. The copper block 3 transfers heat to the upper cooling plate 8 and to the outer periphery of the superconducting coil 1. The upper cooling plate 8 contacts the top surface of the upper superconducting coil 1, achieving uniform distribution of cold energy on the end face of the upper superconducting coil 1. Finally, the heat is transferred to the interior of the superconducting coil 1, ensuring radial cooling and achieving uniform temperature reduction. The above structural arrangement forms multiple parallel conduction paths. When the cold source starts cooling, the heat is quickly transferred to the outer surface of the superconducting coil 1 through each limiting copper block 3, thereby significantly reducing the coil temperature gradient, improving the heat conduction efficiency, and accelerating the magnet's entry into the superconducting state. In this way, by optimizing the heat conduction path of the superconducting coil 1, highly flexible magnetic field configuration control is achieved, enabling the magnet to have higher heat conduction efficiency, more uniform structural stress, more stable magnetic field performance, and more convenient manufacturing and assembly methods under strong magnetic field and low temperature environments. This overcomes the problems of large temperature gradient, structural stress concentration, and low heat conduction efficiency existing in cylindrical superconducting magnets.
[0026] See Figure 1 , Figure 2 and Figure 4 Optionally, a radial groove 401 is provided on the frame 4 along the length direction of the main cold plate 5; A diode 6 is mounted on the main cold plate 5, and a superconducting coil 1 is connected to the diode 6 by a wire coming out from the radial slot 401.
[0027] In this embodiment, the superconducting coil 1 exiting from the radial slot 401 does not affect its critical cooling path, facilitating the connection between the superconducting coil 1 and the protection circuit and excitation system. Simultaneously, the uniformly arranged limiting copper blocks 3 connect the upper cooling plate 8 and the lower cooling plate 9, achieving heat transfer while limiting the deviation of the superconducting coil 1. This avoids the problems of increased local thermal resistance and uneven magnetic field caused by leads in traditional magnets, making the overall cooling distribution of the magnet more reasonable and stable, thus overcoming the problem of unreasonable lead arrangement in existing cylindrical superconducting magnets. After exiting from the radial slot 401, the superconducting coil 1 is connected to the diode 6. When the temperature reaches the superconducting critical temperature, current is passed through the superconducting coil 1 to generate a uniformly distributed and stable strong magnetic field, enabling the magnet to reach a stable superconducting state. If the magnet loses quench, the diode 6 quickly conducts, shunting the current in the superconducting coil 1 to prevent the insulation of the superconducting coil 1 from being broken down due to quench, thus protecting the magnetic field.
[0028] See Figure 1 , Figure 4 and Figure 5 Optionally, the outer circumferential wall of the skeleton 4 is provided with seven cold holes 402, and the cold holes 402 are connected to the inner cavity of the skeleton 4. The radial groove 401 and the seven cold holes 402 are evenly distributed on the skeleton 4, and the position of any cold hole 402 corresponds to the position between two adjacent limiting copper blocks 3.
[0029] In this embodiment, an external excitation device or detection device can be connected through the cold holes 402 of the skeleton 4 to meet various experimental requirements; the seven evenly distributed cold holes 402 not only reduce the mass but also ensure the flexible arrangement of the test sample, which is conducive to using the magnetic field from different directions, and the radial groove 401 optimizes the wiring and simplifies the wiring process.
[0030] See Figures 1-3 Optionally, the main cold plate 5 includes an extension section 501 and a support section 502. The support section 502 is located at the bottom of the lower cold plate 9. The radial groove 401 is positioned corresponding to the extension section 501. The diode 6 is mounted on the extension section 501.
[0031] In this embodiment, the main cold plate 5 is divided into two parts: an extension section 501 and a support section 502. The extension section 501 facilitates the distribution and installation of diodes 6 on it and is used to connect to the cold source to transfer cold energy to the support section 502. The support section 502 supports the superconducting coil 1, the upper cold plate 8 and the lower cold plate 9 and evenly transfers cold energy to each part.
[0032] See Figure 1 and Figure 2 Optionally, a cable tray 7 is provided at the opening of the radial slot 401. The cable tray 7 is located between two adjacent limiting copper blocks 3, and the bottom end of the cable tray 7 is installed on the extension section 501.
[0033] In this embodiment, the wiring frame 7 facilitates the laying and guiding of the superconducting coil 1 after it exits from the radial groove 401, thereby facilitating its connection with the diode 6 installed on the extension section 501 of the main cold plate 5.
[0034] See Figure 1 and Figure 2 Optionally, the inner ring of the superconducting coil 1 has a conical geometry.
[0035] In this embodiment, the conical geometry effectively disperses radial and axial electromagnetic forces under high magnetic fields, allowing the internal stress of the superconducting coil 1 to naturally divert along the conical direction, thereby reducing local stress concentration. This facilitates the formation of a good thermal contact interface during assembly, reduces manufacturing complexity, and improves the feasibility of the magnet in actual processing. Compared with the traditional cylindrical conical geometry, it can significantly reduce the deformation of the superconducting coil 1 and the risk of quenching failure due to uneven stress, thus improving the long-term stability of the magnet. In addition, the conical geometry design provides access space for external excitation and detection methods, ensuring the target magnetic field strength while facilitating interface matching, greatly expanding the experimental possibilities, and ensuring the stability and uniformity of the high field strength of the superconducting coil.
[0036] See Figure 1 Optionally, the superconducting coil 1 is made of multi-specification concentric winding superconducting wire and is formed by stacking multiple coil units along the magnet axis. The inner diameter of each coil unit changes step by step, so that the inner ring of the superconducting coil 1 has a continuous conical shape.
[0037] In this embodiment, different specifications of superconducting wires maintain a matched radial and axial stress environment in each region, achieving a smooth transition winding of multiple wires, improving the mechanical continuity and magnetic field uniformity of the superconducting coil 1, and facilitating the full utilization of the technical advantages of multi-specification wire combination in high magnetic field applications. It is more economical and technically superior to single winding. When the excitation power supply is energized, compared with the conventional structure, the specific coil shape (i.e., the inner diameter of each coil unit changes step by step, making the inner ring of the superconducting coil 1 a continuous conical surface) controls the number of turns, thereby effectively reducing the current input. The current is more evenly distributed along different positions of the superconducting coil 1, preventing stress concentration and avoiding overheating or overload in certain areas, improving the durability and performance of the superconducting coil 1. At the same time, a more uniform magnetic field distribution can be generated in a specific area.
[0038] See Figure 1 Optionally, the outer surfaces of both superconducting coils 1 are covered with a copper layer with a high RRR (3R) value (the ratio of the resistivity of the material at 300K to 4.2K), and the copper layer is formed by pressure molding to form a complete thermal coupling interface with the superconducting coils 1.
[0039] In this embodiment, the copper layer has excellent thermal conductivity. The pressure molding process ensures that the copper layer is tightly bonded to the outer surface of the superconducting coil 1, significantly reducing the interfacial contact thermal resistance. This allows the cooling energy to be quickly transferred to the body of the superconducting coil 1 through the copper layer. Combined with the uniformly distributed limiting copper blocks 3 and the main cold plate 5 on the outer periphery, the internal temperature gradient of the superconducting coil 1 is significantly reduced, accelerating the speed at which the magnet enters the superconducting state and avoiding the risk of quenching failure caused by local overheating. In addition, the tightly wrapped copper layer can provide a certain degree of constraint on the superconducting coil 1. Combined with the stress dispersion characteristics of the conical structure, it further suppresses the deformation of the superconducting coil 1 under a strong magnetic field. At the same time, it provides a more regular contact surface for subsequent assembly with the outer binding layer 2 and limiting copper blocks 3, improving the assembly accuracy and mechanical stability of the overall structure.
[0040] See Figures 1-3 Optionally, the limiting copper blocks 3 are made of oxygen-free copper TU1, and there are eight of them. The eight limiting copper blocks 3 are arranged in a ring array on the outer periphery of the binding layer 2. The upper and lower ends of the inner sidewall of the limiting copper blocks 3 are respectively attached to the outer wall of the corresponding binding layer 2, and the middle section of the inner sidewall of the limiting copper blocks 3 is attached to the outer wall of the skeleton 4.
[0041] In this embodiment, oxygen-free copper has excellent thermal conductivity, ensuring that the cooling capacity is efficiently transferred through the limiting copper blocks 3. The eight limiting copper blocks 3 are arranged in a ring array on the outer periphery of the binding layer 2, that is, uniformly distributed on the outer periphery of the superconducting coil 1. When the conical superconducting magnet structure is running under a strong magnetic field, the superconducting coil 1 will be subjected to a large radial electromagnetic force. The limiting copper blocks 3 can generate a uniform and effective reverse support force on the superconducting coil 1 to prevent displacement or shape instability and maintain the precise geometric structure of the superconducting coil 1.
[0042] See Figure 4 Optionally, the skeleton 4 is made of 6061-T6 material.
[0043] In this embodiment, the skeleton 4 is made of 6061-T6 material, which gives it good processing characteristics and excellent structural strength, making it easier to reduce the overall weight of the conical superconducting magnet structure.
[0044] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A novel conical superconducting magnet structure, characterized in that, It includes a skeleton (4) and a main cooling plate (5). Superconducting coils (1) are installed on both the upper and lower sides of the skeleton (4). Binding layers (2) are provided on the outside of both superconducting coils (1). An upper cooling plate (8) is provided on the top of the upper superconducting coil (1), and a lower cooling plate (9) is provided on the bottom of the lower superconducting coil (1). One end of the main cold plate (5) is located at the bottom of the lower cold plate (9), and the other end is connected to the cold source. Limiting copper blocks (3) are evenly installed between the upper cold plate (8) and one end of the main cold plate (5) along the outer circumference of the binding layer (2).
2. The novel conical superconducting magnet structure according to claim 1, characterized in that, The skeleton (4) has a radial groove (401) along the length of the main cold plate (5). A diode (6) is mounted on the main cold plate (5), and the superconducting coil (1) is connected to the diode (6) by a wire coming out from the radial groove (401).
3. The novel conical superconducting magnet structure according to claim 2, characterized in that, The outer circumferential wall of the skeleton (4) is provided with seven cold holes (402), and the cold holes (402) are connected to the inner cavity of the skeleton (4). The radial groove (401) and the seven cold holes (402) are evenly distributed on the skeleton (4). The position of any one of the cold holes (402) corresponds to the position between two adjacent limiting copper blocks (3).
4. The novel conical superconducting magnet structure according to claim 2, characterized in that, The main cold plate (5) includes an extension section (501) and a support section (502). The support section (502) is located at the bottom of the lower cold plate (9). The radial groove (401) is located corresponding to the extension section (501). The diode (6) is mounted on the extension section (501).
5. The novel conical superconducting magnet structure according to claim 4, characterized in that, A cable tray (7) is provided at the opening of the radial groove (401). The cable tray (7) is located between two adjacent limiting copper blocks (3), and the bottom end of the cable tray (7) is installed on the extension section (501).
6. The novel conical superconducting magnet structure according to claim 1, characterized in that, The inner ring of the superconducting coil (1) has a conical geometry.
7. The novel conical superconducting magnet structure according to claim 6, characterized in that, The superconducting coil (1) is made of multi-specification concentric winding superconducting wire and is formed by stacking multiple coil units along the magnet axis. The inner diameter of each coil unit changes step by step, so that the inner ring of the superconducting coil (1) has a continuous conical shape.
8. The novel conical superconducting magnet structure according to claim 1, characterized in that, The outer surfaces of both superconducting coils (1) are covered with a copper layer with a high RRR value, and the copper layer is formed by pressure molding to form a complete thermal coupling interface with the superconducting coil (1).
9. The novel conical superconducting magnet structure according to claim 1, characterized in that, The limiting copper blocks (3) are made of oxygen-free copper TU1, and there are eight of them. The eight limiting copper blocks (3) are arranged in a ring array on the outer periphery of the binding layer (2). The upper and lower ends of the inner sidewall of the limiting copper blocks (3) are respectively attached to the outer wall of the corresponding binding layer (2), and the middle section of the inner sidewall of the limiting copper blocks (3) is attached to the outer wall of the skeleton (4).
10. The novel conical superconducting magnet structure according to claim 1, characterized in that, The skeleton (4) is made of 6061-T6 material.