Fusion device coil and fixing device and manufacturing method thereof

Abstract

The invention relates to the technical field of fusion reactors, in particular to a fusion device coil and a fixing device and a manufacturing method thereof, the fixing device clamps and fixes a coil outgoing line head through an outgoing line head fixing clamp, a main body fixing disc is arranged at the top end of a coil main body, and a fixing nut is assembled in a stepped through hole of the main body fixing disc; after the fusion device coil is installed in a vacuum chamber, the fusion device coil is matched and fastened with a plurality of bolts at corresponding positions in the vacuum chamber through fixing nuts assembled on the main body fixing disc at the top end. The clamping tool can provide enough fixing force under the scene that the outer side and the inner side of the fusion device coil do not have a space for installing the clamping tool, so that the coil is prevented from moving, overturning, rotating and the like caused by various types of force generated in the coil installation or working process, and the installation and use safety of the coil is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of fusion reactors, and in particular to a fusion device coil and a fixing device and a manufacturing method thereof. Background Art

[0002] Controlled nuclear fusion reactors reduce the size and footprint of equipment by optimizing compact designs, such as spherical tokamaks or compact spheres, to more efficiently control and maintain plasma. These reactors are committed to efficient use of fuel, reducing consumption and waste generation by recycling deuterium and tritium, and compact designs help reduce construction and operating costs and improve economic feasibility.

[0003] The fusion device contains various types of electromagnetic coils, such as central solenoid coils, toroidal field coils, poloidal field coils, etc. During operation, it needs to withstand large expansion force, overturning force, torsional force and other types of forces. Therefore, the coils should be reliably fixed to prevent the coils from rotating, moving or even being damaged under the action of electromagnetic force.

[0004] However, the installation space for coils in compact fusion devices is limited. For example, the space outside the central solenoid coil is too compact to accommodate a clamping plate, and the space inside is also small, and there is not enough space to use a suitable bracket to fix it.

[0005] Based on this, how to prevent the coil from rotating, moving or even being damaged becomes a technical problem that needs to be solved urgently for fusion devices with limited installation space. Summary of the invention

[0006] The present application provides a fusion device coil and a fixing device and a manufacturing method thereof, so as to solve the technical problem mentioned in the above background technology of how to prevent the coil from rotating, moving or even being damaged for a fusion device with limited installation space.

[0007] According to the first aspect, the present application provides a fixing device for a fusion device coil, wherein the fusion device coil includes a coil body and a coil wire end led out at the top end of the coil body, and the fixing device includes: a wire end fixing clamp and a main body fixing disk; the wire end fixing clamp is used to clamp and fix on the coil wire end, and the main body fixing disk is used to be arranged on the top end of the coil body; a plurality of stepped through holes are opened on the main body fixing disk from the lower surface to the upper surface, and fixing nuts are arranged one by one in the stepped through holes; the wire end fixing clamp and the main body fixing disk can be fixed and formed integrally with the coil body.

[0008] In one embodiment, the stepped through hole has a waist-shaped groove for accommodating the fixing nut on one side of the lower surface of the main body fixing plate.

[0009] In one embodiment, one end of the fixing nut has a waist-shaped base adapted to the waist-shaped groove.

[0010] In one embodiment, the main body fixing disk is provided with an installation position for accommodating the wire outlet head fixing clip at a position corresponding to the coil wire outlet head position, and the wire outlet head fixing clip is fixedly installed at the installation position.

[0011] In one embodiment, a plurality of guide grooves are provided on the lower surface of the main body fixing plate.

[0012] In one embodiment, the wire outlet fixing clamp includes a C-shaped clamp and fixing ears located on both sides of the C-shaped clamp, the coil wire outlet is installed in the mounting groove of the C-shaped clamp, fastening bolts are installed at the two ends of the C-shaped clamp opening, and the fixing ears are provided with mounting holes.

[0013] According to the second aspect, the present application provides a fusion device coil, comprising: a coil body, a coil outlet end led out at the top of the coil body, and a fixing device for the fusion device coil described in any one of the first aspects above, wherein the fixing device is installed at the top of the coil body; an integrally cured solidified layer is also coated on the outer surface of the coil body and the fixing device.

[0014] In one embodiment, the coil body includes any one of a central solenoid coil, a toroidal field coil and a poloidal field coil.

[0015] According to the third aspect, the present application provides a method for manufacturing a coil of a fusion device, including: winding a coil body and leading out a coil wire end at the top of the coil body; installing a wire end fixing clip at the position of the coil wire end; assembling a fixing nut in a countersunk hole on a main body fixing disk, and installing the main body fixing disk on the top of the coil body; placing the coil body and the main body fixing disk in a curing mold for integrated curing.

[0016] In one embodiment, before placing the coil body and the body fixing plate in a curing mold and curing, the method further comprises: wrapping a winding insulation around the outer surfaces of the coil body and the body fixing plate.

[0017] This application has at least the following beneficial effects: The fixing device in the present application clamps and fixes the coil wire head through a wire head fixing clip, arranges the main body fixing disk at the top of the coil body, assembles a fixing nut in the stepped through hole of the main body fixing disk, and fixes the wire head fixing clip and the main body fixing disk and the coil body as a whole. After the fusion device coil is installed in the vacuum chamber, the fixing nut assembled through the main body fixing disk at the top is fastened with multiple bolts at corresponding positions in the vacuum chamber, which can provide sufficient fixing force in a scenario where there is no space on the outside and inside of the fusion device coil to install the clamping tool, prevent the coil from moving, overturning, rotating, etc. caused by various types of forces generated during the installation or operation of the coil, and ensure the safety of the coil installation and use.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the upper surface structure of a fixing device for a fusion device coil provided in an embodiment of the present application; Figure 2 A schematic diagram of the lower surface structure of a fixing device for a fusion device coil provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a fixing nut provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of the outlet head fixing clip provided in an embodiment of the present application; Figure 5 A cross-sectional view of a fusion device coil provided in an embodiment of the present application; Figure 6 A schematic diagram of a process for manufacturing a fusion device coil provided in an embodiment of the present application; Figure 7 A schematic diagram of the structure of a coil body and a coil outlet of a fusion device coil provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure after the outlet head fixing clip is installed according to an embodiment of the present application is shown; Fig. 9 A schematic diagram of the structure after the installation main body fixing plate provided in the embodiment of the present application; Fig.10This is a schematic diagram of the structure of the fusion device coil winding after insulation and curing provided in an embodiment of the present application.

[0021] The diagram is as follows: 11. Coil body; 111. Cross-layer transition section; 112. First cross-column transition section; 113. Second cross-column transition section; 12. Coil outlet; 20. Outlet fixing clip; 21. C-shaped clip; 211. Fixing ear; 212. First end; 213. Second end; 22. Fastening bolt; 23. Insulating partition; 24. Spacer; 30. Main body fixing plate; 31. Step through hole; 311. Waist-shaped groove; 32. Fixing nut; 321. Waist-shaped base; 33. Guide groove; 40. Curing layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0023] The present application embodiment provides a fixing device for a fusion device coil, such as Figure 7 As shown, the fusion device coil includes a coil body 11 and a coil outlet 12 led out at the top of the coil body 11. The fusion device coil can be a central solenoid coil, a toroidal field coil, a poloidal field coil or other types of coils, which are not limited in this application. In this embodiment, the central solenoid coil is taken as an example for explanation. The central solenoid coil can be wound with a conductor, such as a superconductor or a hollow copper conductor. When winding, it can be wound layer by layer. After the required layers are wound, the layers are spliced ​​by welding or crimping through a cross-layer transition section. It is also possible to use a whole conductor for winding, and to wind from the innermost column to the outermost column in sequence. In this application, a central solenoid coil wound with a whole conductor is taken as an example for explanation. After the coil body 11 of the central solenoid coil is wound, the coil outlet 12 is led out at the top of the coil body 11.

[0024] Specifically, the central solenoid coil is an m-layer n-column coil that is wound in sequence from the innermost column to the outermost column by a whole conductor. In this embodiment, the central solenoid coil is wound in rows by a whole conductor, and each layer of the innermost column is wound first, and then wound in rows in sequence toward the outermost column. When winding each layer in a column, the conductor needs to bend across the layer, and when winding the next column, the conductor needs to bend across the column. When bending across the layer, the conductor is led out from the current layer to the next layer to form a cross-layer transition section 111 for cross-layer, and each column has a group of cross-layer transition sections 111, and each cross-layer transition section 111 in each group of cross-layer transition sections 111 is between adjacent layers; and the projections of the same group of cross-layer transition sections 111 on the radial plane overlap, so that the cross-layer transition sections 111 can achieve tangential connection between adjacent layers in the same column, so that the gaps at any position between adjacent layers are the same or are within the preset inter-layer gap range. Thereby avoiding the gap between turns between layers caused by the cross-layer transition section 111 during the transition between layers. When the cross-column is bent, the conductor is led out from the current column to the next column to form a cross-column transition section for cross-column, wherein the cross-column transition section includes n-1 first cross-column transition sections 112 located in the second layer and the last layer and a group of second cross-column transition sections 113 arranged along the first layer, wherein the distribution of the first cross-column transition sections 112 is that the first cross-column transition section 112 for transition from odd columns to even columns is located in the last layer, and the first cross-column transition section 112 for transition from even columns to odd columns is located in the second layer; the second cross-column transition section 113 is a cross-column transition section between columns in the first layer, and the n-1 second cross-column sections are used to achieve tangent connection between adjacent columns in the first layer, wherein the second layer is the next layer of the first layer in the direction toward the last layer. Forming such as Figure 7 An exemplary fusion device coil is shown.

[0025] like Figures 1 to 4 As shown, the fixing device for the coil of the fusion device includes: a lead-out head fixing clamp 20 and a main body fixing disk 30, wherein the lead-out head fixing clamp 20 is used to clamp and fix on the coil lead-out head 12, and the main body fixing disk 30 is used to be arranged on the top of the coil body 11. In this embodiment, the so-called top of the coil body 11 is based on the fact that when the coil body 11 is installed, the coil body 11 is vertically installed in the vacuum chamber of the fusion device, one end of the coil body 11 is installed on the vacuum chamber, and the other end is used as the top.

[0026] The main body fixing disk 30 is provided with a plurality of stepped through holes 31 from the lower surface to the upper surface, and fixing nuts 32 are provided in the stepped through holes 31 one by one; the outlet head fixing clamp 20 and the main body fixing disk 30 can be fixed and formed integrally with the coil body 11. In this embodiment, the main body fixing disk 30 can be made of G10 material, or other hard materials such as stainless steel. The stepped through holes 31 can be evenly distributed on the main body fixing disk, for example, Figure 1 and Figure 2 The distribution and quantity shown in the figure are used for opening.

[0027] Among them, the lower surface of the main body fixing disk 30 is the side in contact with the top of the coil body 11, and the upper surface of the main body fixing disk 30 is another surface opposite to the lower surface. The corresponding stepped through hole 31 is a first opening of large size and a second opening of small size from the lower surface to the upper surface. When the fixing nut 32 is set in the stepped through hole 31, it is installed from the lower surface to the upper surface, so that when the fixing nut 32 is installed in the fixed position of the fusion device by bolts, it can provide sufficient fixing force. At the same time, the outlet head fixing clip 20 and the main body fixing disk 30 are fixed and formed integrally with the coil body 11 to provide sufficient tightening force.

[0028] The fixing device in the present application clamps and fixes the coil wire outlet 12 through the wire outlet fixing clip 20, arranges the main body fixing disk 30 at the top end of the coil body 11, assembles the fixing nut 32 in the stepped through hole 31 of the main body fixing disk 30, and fixes the wire outlet fixing clip 20 and the main body fixing disk 30 with the coil body 11 as a whole. After the fusion device coil is installed in the vacuum chamber, the fixing nut 32 assembled by the main body fixing disk 30 at the top end is fastened with multiple bolts at corresponding positions in the vacuum chamber, which can provide sufficient fixing force in the scenario where there is no space for installing clamping tools on the outside and inside of the fusion device coil, prevents the coil from moving, overturning, rotating, etc. caused by various types of forces generated during the installation or operation of the coil, and ensures the safety of coil installation and use.

[0029] In one embodiment, if Figure 2 As shown, the stepped through hole 31 has a waist-shaped groove 311 on one side of the lower surface of the main body fixing plate 30 for accommodating the fixing nut 32. That is, the large-size opening of the stepped through hole 31 is a waist-shaped opening. Figure 3 As shown, one end of the fixing nut 32 has a waist-shaped base 321 adapted to the waist-shaped groove 311. When the fixing nut 32 is assembled, the waist-shaped base 321 of the fixing nut 32 is adapted to the waist-shaped groove 311 of the stepped through hole 31, which can prevent the fixing nut 32 from rotating. In order to increase the strength, the fixing nut 32 is made of stainless steel, and the bottom is waist-shaped to prevent rotation, and the bottom is closed to prevent the curing material from entering during curing.

[0030] In one embodiment, the main body fixing disk 30 is provided with an installation position for accommodating the outlet head fixing clip 20 at a position corresponding to the position of the coil outlet head 12, and the outlet head fixing clip 20 is fixedly installed at the installation position. In this embodiment, a position capable of accommodating the outlet head fixing clip 20 is reserved on the main body fixing disk 30 at the position of the coil outlet head 12, so that after the outlet head fixing clip 20 and the main body fixing disk 30 are installed, the upper surface of the outlet head fixing clip 20 and the upper surface of the main body fixing disk 30 remain substantially flush.

[0031] In one embodiment, if Figure 2 As shown, a plurality of guide grooves 33 are provided on the lower surface of the main body fixing plate 30. This facilitates the full flow of the curing material during the integral curing, prevents the occurrence of gaps, and enhances the fastening force between the main body fixing plate 30 and the coil body 11.

[0032] In one embodiment, if Figure 4 As shown, the outlet head fixing clip 20 includes a C-shaped clip 21 and fixing ears 211 located on both sides of the C-shaped clip. The coil outlet head 12 is installed in the installation groove of the C-shaped clip 21. Fastening bolts 22 are installed at the two ends of the opening of the C-shaped clip 21. The fixing ears 211 are provided with installation holes. Correspondingly, holes corresponding to the installation holes of the fixing ears 211 are provided at the installation position of the outlet head fixing clip 20 of the main body fixing disk 30, and the outlet head fixing clip 20 is installed on the main body fixing disk 30 by screws. The first end 212 of the two ends of the opening of the C-shaped clip 21 is provided with a countersunk through hole, and the corresponding second end 213 is provided with a threaded hole. The fastening bolt 22 enters from the countersunk through hole of the first end 212 and is screwed into the threaded hole of the second end 213 to achieve the fastening of the C-shaped clip 21.

[0033] The C-shaped clip 21 can be made of stainless steel. The coil outlet 12 is installed in the installation groove of the C-shaped clip. The two ends of the opening of the C-shaped clip 21 are equipped with fastening bolts 22 to clamp the coil outlet 12. An insulating partition 23 is provided at the opening of the C-shaped clip 21. When the fastening bolt 22 is installed, a spacer 24 can be placed on the fastening bolt 22 to improve the fastening ability and play an insulating role. In this embodiment, the insulating partition 23 and the spacer 24 can be made of G10 material.

[0034] The embodiment of the present application also provides a fusion device coil, which can be a central solenoid coil, a toroidal field coil, a poloidal field coil or other types of coils in a fusion device, which are not limited in the present application. In this embodiment, the central solenoid coil is used as an example for description.

[0035] like Figure 5As shown, the coil includes a coil body 11, a coil lead 12 led out from the top of the coil body 11, and a fixing device for the fusion device coil described in the above embodiment, wherein the fixing device is installed at the top of the coil body 11; the outer surfaces of the coil body 11 and the fixing device are also coated with an integrally cured solidified layer 40.

[0036] The fixing device in the present application clamps and fixes the coil wire head 12 through the wire head fixing clip 20, and the main body fixing disk 30 is used to be arranged at the top end of the coil body 11, and the fixing nut 32 is assembled in the stepped through hole 31 of the main body fixing disk 30, and the wire head fixing clip 20 and the main body fixing disk 30 can be fixed and formed integrally with the coil body 11. After the fusion device coil is installed in the vacuum chamber, the fixing nut 32 assembled by the main body fixing disk 30 at the top is fastened with multiple bolts at corresponding positions in the vacuum chamber, which can provide sufficient fixing force in the scenario where there is no space for installing clamping tools on the outside and inside of the fusion device coil, prevent the coil from moving, overturning, rotating, etc. caused by various types of forces generated during the installation or operation of the coil, and ensure the safety of coil installation and use.

[0037] The present application also provides a method for manufacturing a fusion device coil. Figure 6-10 As shown, the following steps are included: Step S1, winding the coil body 11, and leading out the coil wire end 12 at the top of the coil body 11. In the present embodiment, a whole conductor is used for winding. The conductor can be a superconductor or a copper conductor. In the present embodiment, a hollow copper conductor is taken as an example for explanation. Before winding, the copper conductor is first subjected to processes such as leak detection and surface treatment. The copper conductor is usually made of coil material. The coil is placed on a feed rack, and then passes through a tensioning mechanism, a straightening machine, and a turn insulation. The turn insulation includes polyimide tape and glass ribbon. The coil is then wound on a winding machine. Filling blocks need to be placed during the winding process. After the last layer is wound, the coil wire end 12 is led out at the top of the coil body 11, clamped and hoisted, and then wrapped with several layers of glass ribbon or polyimide for pre-fixation to prevent it from spreading. As obtained Figure 7 The coil body 11 with the coil outlet 12 is shown.

[0038] Step S2, install the outlet head fixing clamp 20 at the position of the coil outlet head 12. The outlet head fixing clamp 20 is sleeved on the coil outlet head 12 and fastened by the fastening bolt 22 to clamp the coil outlet head 12. After the installation of the coil outlet head 12 fastening clamp is completed, the coil outlet head 12 is obtained. Figure 8 The structure shown.

[0039] Step S3, assemble the fixing nut 32 in the stepped through hole 31 on the main body fixing disk 30, and install the main body fixing disk 30 on the top of the coil body 11. A plurality of stepped through holes 31 are opened on the main body fixing disk 30 from the lower surface to the upper surface, and the fixing nuts 32 are assembled one by one in the stepped through holes 31, wherein the stepped through hole 31 has a waist-shaped groove 311 for accommodating the fixing nut 32 on one side of the lower surface of the main body fixing disk 30, and one end of the fixing nut 32 has a waist-shaped base 321 adapted to the waist-shaped groove 311. When the fixing nut 32 is assembled, the waist-shaped base 321 of the fixing nut 32 is adapted to the waist-shaped groove 311 of the stepped through hole 31, which can prevent the fixing nut 32 from rotating. In order to increase the strength, the fixing nut 32 is made of stainless steel, and the bottom is waist-shaped to prevent rotation, and the bottom is closed to prevent the curing material from entering during curing. Forming such as Fig. 9 The coil structure is shown after the main body fixing plate 30 is installed.

[0040] Step S4, placing the coil body 11 and the main body fixing disk 30 in a curing mold for integrated curing. In this embodiment, the coil body 11 and the main body fixing disk 30 can be cured into one body by using epoxy resin, and the outer surface of the coil body 11 and the fixing device is also coated with an integrated cured layer 40. After the coil body 11 and the main body fixing disk 30 are placed in the curing mold, the threaded holes of the fixing nuts 32 can be covered and fastened by bolts or studs. After the curing is completed, the bolts or studs can be separated from the fixing nuts 32 by a release agent. Forming a Fig.10 The solidified fusion device coil is shown.

[0041] The fixing device in the present application clamps and fixes the coil wire head 12 through the wire head fixing clip 20, and the main body fixing disk 30 is used to be arranged at the top end of the coil body 11, and the fixing nut 32 is assembled in the stepped through hole 31 of the main body fixing disk 30, and the wire head fixing clip 20 and the main body fixing disk 30 can be fixed and formed integrally with the coil body 11. After the fusion device coil is installed in the vacuum chamber, the fixing nut 32 assembled by the main body fixing disk 30 at the top is fastened with multiple bolts at corresponding positions in the vacuum chamber, which can provide sufficient fixing force in the scenario where there is no space for installing clamping tools on the outside and inside of the fusion device coil, prevent the coil from moving, overturning, rotating, etc. caused by various types of forces generated during the installation or operation of the coil, and ensure the safety of coil installation and use.

[0042] In one embodiment, before the coil body 11 and the body fixing plate 30 are placed in a curing mold and cured, the method further includes: wrapping body insulation around the outer surface of the coil body 11 and the body fixing plate 30. In this embodiment, when wrapping the body insulation, it is necessary to avoid the threaded hole of the fixing nut 32 on the body fixing plate 30 to prevent the threaded hole from being covered. The body insulation can be made of insulating materials such as glass ribbon and polyimide.

[0043] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A fixing device for a fusion device coil, characterized in that: The fusion device coil comprises a coil body and a coil lead-out terminal led out from the top of the coil body, and the fixing device comprises: a lead-out terminal fixing clamp and a body fixing plate; The outlet head fixing clamp is used to clamp and fix on the coil outlet head, and the main body fixing plate is used to be arranged on the top of the coil body; A plurality of stepped through holes are provided on the main body fixing plate from the lower surface to the upper surface, and fixing nuts are provided in the stepped through holes in a one-to-one correspondence; The lead-out terminal fixing clip and the main body fixing plate can be integrally fixed and formed with the coil main body.

2. The fixing device for the coil of a fusion device according to claim 1, characterized in that: The stepped through hole has a waist-shaped groove for accommodating the fixing nut on one side of the lower surface of the main body fixing plate.

3. The fixing device for the coil of a fusion device according to claim 2, characterized in that: One end of the fixing nut is provided with a waist-shaped base adapted to the waist-shaped groove.

4. The fixing device for the coil of a fusion device according to claim 1, characterized in that: The main body fixing disk is provided with an installation position for accommodating the outlet head fixing clip at a position corresponding to the coil outlet head position, and the outlet head fixing clip is fixedly installed at the installation position.

5. The fixing device for the coil of a fusion device according to claim 4, characterized in that: A plurality of guide grooves are provided on the lower surface of the main body fixing plate.

6. The fixing device for the coil of a fusion device according to claim 1, characterized in that: The outlet head fixing clamp includes a C-shaped clamp and fixing ears located on both sides of the C-shaped clamp. The coil outlet head is installed in the installation groove of the C-shaped clamp. Fastening bolts are installed at the two ends of the C-shaped clamp opening, and the fixing ears are provided with installation holes.

7. A fusion device coil, characterized in that: include: A coil body, a coil lead extending from the top of the coil body, and a fixing device for a fusion device coil according to any one of claims 1 to 6, wherein the fixing device is installed at the top of the coil body; The outer surfaces of the coil body and the fixing device are also coated with an integrally cured solidified layer.

8. The fusion device coil according to claim 7, characterized in that: The coil body includes any one of a central solenoid coil, a toroidal field coil and a poloidal field coil.

9. A method for manufacturing a fusion device coil, characterized in that: include: Winding the coil body, and leading out the coil lead end at the top of the coil body; Installing a wire outlet fixing clip at the position of the coil wire outlet; Assemble the fixing nut in the countersunk hole on the main body fixing plate, and install the main body fixing plate on top of the coil body; The coil body and the body fixing plate are placed in a curing mold for integral curing.

10. The method for manufacturing the fusion device coil according to claim 9, characterized in that: Placing the coil body and the body fixing plate in a curing mold and curing the coil body further comprises: The outer surfaces of the coil body and the body fixing plate are covered with a winding body insulated.

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