Fixing device of circumferential magnetic field coil

Abstract

The utility model provides a fixing device for a circumferential magnetic field coil. The fixing device comprises a coil box group formed by a plurality of circumferential magnetic field coil boxes which are spliced in the circumferential direction; an annular insulating base plate is arranged between every two adjacent annular magnetic field coil boxes; the first fixing structures are respectively arranged at two ends of the assembled coil box group; and the second fixing structures are arranged between the two adjacent annular magnetic field coil boxes. According to the utility model, a split annular magnetic field coil box annular mounting and fixing form is adopted; the two ends of the annular magnetic field coil box achieve bearing and insulation of annular force through a first fixing structure. The inner sides of the annular magnetic field coil boxes are annularly insulated and resist the electromagnetic force of the magnets through annular insulating base plates; the outer sides of the annular magnetic field coil boxes realize annular insulation and resistance to the electromagnetic force of the magnet through a second fixing structure; and the structural safety and reliability of the device in operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of fusion reactor technology, and in particular to a fixing device for a circumferential magnetic field coil. Background Technology

[0002] The necessary condition for the operation of a magnetic confinement fusion device is the generation of magnetic fields in various directions, such as poloidal magnetic fields and circumferential magnetic fields. Taking the circumferential magnetic field as an example, its magnetic field strength can reach several Tesla or even tens of Tesla. This requires the coil that generates the circumferential magnetic field to have an extremely large current value, with a single-turn current reaching hundreds of kiloamperes or even several megaamperes.

[0003] The ultra-high current passing through the circumferential magnetic field coil generates a powerful magnetic field, as well as enormous forces and torques. This necessitates a sufficiently robust mounting system to ensure the structural safety and reliable operation. Furthermore, it is crucial to avoid circuit continuity between the mounting structures in the circumferential direction to prevent negative impacts on the plasma operation within the device.

[0004] Therefore, it is necessary to design a magnetic field coil fixing device that can maintain structural strength while increasing circumferential resistance. Utility Model Content

[0005] This utility model provides a fixing device for a circumferential magnetic field coil, the purpose of which is to improve the structural strength of the circumferential magnetic field coil.

[0006] To overcome the above-mentioned technical problems, according to an embodiment of the present invention, a fixing device for a circumferential magnetic field coil is provided, comprising:

[0007] Multiple circumferential magnetic field coil boxes, wherein each circumferential magnetic field coil box houses a corresponding circumferential magnetic field coil, the multiple circumferential magnetic field coil boxes are arranged in a ring along the horizontal direction and assembled together to form a coil box group, and a circumferential insulating pad is provided between two adjacent circumferential magnetic field coil boxes;

[0008] First fixing structures are respectively set at both ends of the circumferential magnetic field coil box group; each of the circumferential first mounting fixing structures includes a first insulating pad, a plurality of first insulating studs and at least one layer of double semi-circular ring structure, the plurality of first insulating studs passing through the double semi-circular ring structure and the first insulating pad, and corresponding to the plurality of circumferential magnetic field coil boxes one by one;

[0009] A second fixing structure is provided between two adjacent circumferential magnetic field coil boxes; the outer second fixing connection structure includes a second insulating pad, a plurality of second insulating studs and at least one fixing plate, the plurality of second insulating studs passing through the second insulating pad and the fixing plate and respectively connecting to the outer side of the two adjacent circumferential magnetic field coil boxes.

[0010] In one embodiment, the first insulating pad is provided on both sides of the double semi-circular ring structure; the second insulating pad is provided on both sides of the fixing plate.

[0011] In one embodiment, there is a gap between the two semicircles of the double semicircular ring structure.

[0012] In one embodiment, the first fixing structure includes multiple layers of the double semi-circular ring structure, wherein the gaps between the two semicircles in adjacent layers of the double semi-circular ring structure are staggered.

[0013] In one embodiment, each of the circumferential magnetic field coil boxes includes a first splicing body and a second splicing body symmetrically arranged at both ends, as well as an intermediate body on one side and an edge body on the other side disposed between the first splicing body and the second splicing body; the first splicing body and the second splicing body of the plurality of circumferential magnetic field coil boxes can all be assembled into a circle.

[0014] In one embodiment, at least one connecting wing plate is provided on each side of the edge body, and the number of connecting wing plates on both sides of the edge body is equal and corresponds one-to-one; the second insulating stud is connected to the connecting wing plate.

[0015] In one embodiment, two connecting wing plates are provided on both sides of the edge body.

[0016] In one embodiment, the first end of the intermediate extends beyond the first splice body in the direction toward the first splice body, and the second end extends beyond the second splice body in the direction toward the second splice body.

[0017] In one embodiment, the first insulating stud is connected to a first end and / or a second end of the intermediate body.

[0018] In one embodiment, the second splicing body is fixed with a base support on the side opposite to the first splicing body.

[0019] The technical solutions provided by the embodiments of this utility model may include the following beneficial effects:

[0020] This invention employs a separate circumferential magnetic field coil box to form a coil box assembly. The circumferential magnetic field coil is supported and installed through the circumferential magnetic field coil box. The two ends of the coil box assembly are supported and insulated by a first fixing structure. The inner sides of the circumferential magnetic field coil boxes are insulated and resisted by the electromagnetic force of the magnet through the first fixing structure. The outer sides of the circumferential magnetic field coil boxes are insulated and resisted by the electromagnetic force of the magnet through a second fixing structure. This reduces the difficulty of installation and fixing in the device structure design and improves the structural safety and reliability of the device during operation.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a fixing device for a circumferential magnetic field coil according to an exemplary embodiment.

[0024] Figure 2 This is a three-dimensional structural schematic diagram of a circumferential magnetic field coil box and a base support, according to an exemplary embodiment.

[0025] Figure 3 This is a three-dimensional structural schematic diagram of a circumferential magnetic field coil box and a circumferential insulating pad according to an exemplary embodiment.

[0026] Figure 4 This is a three-dimensional structural schematic diagram of a first fixed structure according to an exemplary embodiment.

[0027] Figure 5 This is a three-dimensional structural schematic diagram of the second fixed structure according to an exemplary embodiment.

[0028] In the diagram, 1 is the circumferential magnetic field coil box; 101 is the first splice body; 102 is the second splice body; 103 is the intermediate body; 104 is the edge body; and 105 is the connecting wing plate.

[0029] 2. Circumferential insulating pad;

[0030] 3. First fixing structure; 301. First insulating pad; 302. First insulating stud; 303. Double semi-circular ring structure;

[0031] 4. Second fixing structure; 401. Second insulating pad; 402. Second insulating stud; 403. Fixing plate;

[0032] 5. Base support. Detailed Implementation

[0033] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0034] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figure 1-5 As shown, this utility model provides a fixing device for a circumferential magnetic field coil. Some specific embodiments are described below. The fixing device for a circumferential magnetic field coil disclosed in this application includes multiple circumferential magnetic field coil boxes 1. Each circumferential magnetic field coil box 1 houses a corresponding circumferential magnetic field coil. The multiple circumferential magnetic field coil boxes 1 are arranged in a horizontal ring and assembled together to form a coil box group, that is, the circumferential magnetic field coil boxes 1 are assembled 360° horizontally to form a whole. A circumferential insulating pad 2 is placed between the contact points of two adjacent circumferential magnetic field coil boxes 1 for insulation.

[0037] like Figure 1 , 4 As shown, after assembly, to achieve fixation and increase the overall structural strength, in some specific embodiments, a first fixing structure 3 is installed at both ends of the coil box assembly. Specifically, the first fixing structure 3 includes a first insulating pad 301, a plurality of first insulating studs 302, and at least one layer of double semi-circular ring structure 303. The plurality of first insulating studs 302 pass through the double semi-circular ring structure 303 and the first insulating pad 301 and are connected one-to-one with the circumferential magnetic field coil box 1.

[0038] In some embodiments, the double semi-circular ring structure 303 has first insulating pads 301 on both sides facing away from the coil box assembly. The number of first insulating studs 302 in the same first fixing structure 3 is the same as the number of circumferential magnetic field coil boxes 1. The first insulating studs 302 pass through the double semi-circular ring structure 303 and are threadedly connected to both ends of each circumferential magnetic field coil box 1. Specifically, the double semi-circular ring structure 303 uses two semicircles, thus fixing the ends of multiple circumferential magnetic field coil boxes 1 connected to the same semicircle into a single unit. There is a gap between the two semicircles of the double semi-circular ring structure 303, allowing for movement and preventing installation problems due to slight positional deviations.

[0039] To ensure that the ends of all circumferential magnetic field coil boxes 1 are fixed as a whole, a first fixing structure 3 includes multiple layers of double semi-circular ring structures 303, with the gaps between the two semicircles in adjacent layers of double semi-circular ring structures 303 staggered. Thus, after the upper and lower layers of double semi-circular ring structures 303 are installed at the ends of all circumferential magnetic field coil boxes 1 via first insulating studs 302, the circumferential magnetic field coil boxes 1 connected to the semicircles in the upper and lower layers of double semi-circular ring structures 303 are staggered, making the ends of all circumferential magnetic field coil boxes 1 connected as a whole.

[0040] like Figure 1 , 5 As shown, after fixing the ends of multiple circumferential magnetic field coil boxes 1, it is also necessary to fix the sides of multiple circumferential magnetic field coil boxes 1. In some specific embodiments, a second fixing structure 4 is installed between two adjacent circumferential magnetic field coil boxes 1. Specifically, the second fixing structure 4 includes a second insulating pad 401, multiple second insulating studs 402, and at least one fixing plate 403. The fixing plate 403 has second insulating pads 401 on both sides facing and away from the circumferential magnetic field coil box 1. The multiple second insulating studs 402 are divided into two rows along the longitudinal direction, passing through the second insulating pads 401 and the fixing plate 403 respectively, and connecting to the outside of two adjacent circumferential magnetic field coil boxes 1, thereby completing the side fixing of multiple circumferential magnetic field coil boxes 1 and improving strength.

[0041] The top of the circumferential magnetic field coil box 1 is connected by a first fixing structure 3 to achieve circumferential force bearing and insulation; the top and bottom of the circumferential magnetic field coil box 1 are connected by a first fixing structure 3 to achieve circumferential insulation and resist the electromagnetic force of the magnet; the outer sides of the circumferential magnetic field coil box 1 are connected by a second fixing structure 4 to achieve circumferential insulation and resist the electromagnetic force of the magnet; this reduces the difficulty of installation and fixing in the structural design of the device and improves the structural safety and reliability of the device during operation.

[0042] like Figure 1-3As shown, more specifically, the circumferential magnetic field coil box 1 includes a first splicing body 101 and a second splicing body 102 symmetrically arranged at both ends, and an intermediate body 103 and an edge body 104 fixedly connected between the first splicing body 101 and the second splicing body 102. The first splicing body 101, the intermediate body 103, the second splicing body 102, and the edge body 104 are connected end to end longitudinally to form a longitudinal loop. After multiple circumferential magnetic field coil boxes 1 are assembled in a ring, the first splicing body 101 and the second splicing body 102 can all be assembled into a circle, resulting in better overall structural integrity. The intermediate body 103 is a straight rod type, and the edge body 104 is a bent type. The first end of the intermediate body 103 extends beyond the first splicing body 101 in the direction facing the first splicing body 101, and the second end extends beyond the second splicing body 102 in the direction facing the second splicing body 102. The first insulating stud 302 is connected to the first end or the second end of the intermediate body 103 for greater convenience. The second assembly 102 is fixedly connected to a base support 5 on the side opposite to the first assembly 101. After all the circumferential magnetic field coil boxes 1 are assembled and fixed, each base support 5 will support the entire device.

[0043] At least one connecting wing plate 105 is formed on each side of the edge body 104. The number of connecting wing plates 105 on both sides of the edge body 104 is equal and they correspond one-to-one. The second insulating stud 402 is threadedly connected to the connecting wing plate 105. In this specific embodiment, two connecting wing plates 105 are formed on each side of the edge body 104. The connecting wing plates 105 on both sides of the edge body 104 are arranged at intervals along the longitudinal direction of the edge body 104 and correspond one-to-one on both sides. When assembling the circumferential magnetic field coil box 1, the connecting wing plates 105 of two adjacent circumferential magnetic field coil boxes 1 are aligned, with a part of the circumferential insulating pad 2 in the middle. The two circumferential magnetic field coil boxes 1 are connected by two upper and lower second fixing structures 4, which provides higher strength.

[0044] Taking the 16-handled circumferential magnetic field coil box 1 as an example, it includes an independent 16-handled circumferential magnetic field coil box 1, a first fixing structure 3 at each end, and 32 sets of second fixing structures 4 on the outer circumferential direction (16 sets on the top and 16 sets on the bottom).

[0045] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0046] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A fixing device for a circumferential magnetic field coil, characterized in that, include: Multiple circumferential magnetic field coil boxes (1), wherein each circumferential magnetic field coil box (1) houses a corresponding circumferential magnetic field coil, the multiple circumferential magnetic field coil boxes (1) are arranged in a ring along the horizontal direction and assembled together to form a coil box group, and a circumferential insulating pad (2) is provided between two adjacent circumferential magnetic field coil boxes (1); First fixing structures (3) are respectively set at both ends of the coil box assembly; each first fixing structure (3) includes a first insulating pad (301), a plurality of first insulating studs (302) and at least one layer of double semi-circular ring structure (303), the plurality of first insulating studs (302) pass through the double semi-circular ring structure (303) and the first insulating pad (301) and are connected to the plurality of circumferential magnetic field coil boxes (1) one by one; A second fixing structure (4) is provided between two adjacent circumferential magnetic field coil boxes (1); the second fixing structure (4) includes a second insulating pad (401), a plurality of second insulating studs (402) and at least one fixing plate (403), the plurality of second insulating studs (402) passing through the second insulating pad (401) and the fixing plate (403) and respectively connected to the outside of the two adjacent circumferential magnetic field coil boxes (1).

2. The fixing device for the circumferential magnetic field coil according to claim 1, characterized in that, The first insulating pad (301) is provided on both sides of the double semi-circular ring structure (303); The second insulating pad (401) is provided on both sides of the fixing plate (403).

3. The fixing device for the circumferential magnetic field coil according to claim 1, characterized in that, There is a gap between the two semicircles of the double semicircular ring structure (303).

4. The fixing device for the circumferential magnetic field coil according to claim 3, characterized in that, The first fixing structure (3) includes multiple layers of the double semi-circular ring structure (303), and the gaps between the two semicircles in two adjacent layers of double semi-circular ring structure (303) are staggered.

5. The fixing device for the circumferential magnetic field coil according to claim 1, characterized in that, Each of the circumferential magnetic field coil boxes (1) includes: a first splicing body (101) and a second splicing body (102) symmetrically arranged at both ends, and an intermediate body (103) on one side and an edge body (104) on the other side between the first splicing body (101) and the second splicing body (102); the first splicing body (101) and the second splicing body (102) of the plurality of circumferential magnetic field coil boxes (1) can be assembled into a circle.

6. The fixing device for the circumferential magnetic field coil according to claim 5, characterized in that, At least one connecting wing plate (105) is provided on both sides of the edge body (104), and the number of connecting wing plates (105) on both sides of the edge body (104) is equal and corresponds one to one; the second insulating stud (402) is connected to the connecting wing plate (105).

7. The fixing device for the circumferential magnetic field coil according to claim 6, characterized in that, Two connecting wing plates (105) are provided on both sides of the edge body (104).

8. The fixing device for the circumferential magnetic field coil according to claim 5, characterized in that, The first end of the intermediate body (103) extends beyond the first splicing body (101) in the direction toward the first splicing body (101), and the second end extends beyond the second splicing body (102) in the direction toward the second splicing body (102).

9. The fixing device for the circumferential magnetic field coil according to claim 8, characterized in that, The first insulating stud (302) is connected to the first end and / or the second end of the intermediate body (103).

10. The fixing device for the circumferential magnetic field coil according to claim 5, characterized in that, The second splicing body (102) is fixed with a base support (5) on the side opposite to the first splicing body (101).

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