transition feeder

Abstract

This invention relates to the field of feeder systems for nuclear fusion devices, and discloses a transition feeder. The transition feeder includes an outer cylinder, a support assembly, and multiple conductors. A receiving cavity is formed inside the outer cylinder, and the support assembly and multiple conductors are disposed within the receiving cavity. At least a portion of the support assembly is in abutting fit with the inner wall of the outer cylinder. The multiple conductors are spaced apart on the support assembly along a first direction. The support assembly supports the conductors, which are used to supply current to a magnet. The support assembly includes a support body, which includes a first connecting plate and multiple support plates arranged sequentially along the first direction. A first mounting hole is defined between two adjacent support plates, and the conductors pass through the first mounting hole. The first connecting plate is fixedly connected to the multiple support plates, and the first connecting plate at least surrounds the first mounting hole on opposite sides in the first direction. This invention's transition feeder can prevent adjacent support plates from separating due to repulsive forces in the first direction after the conductors are energized.

Description

Technical Field

[0001] This invention relates to the field of feeder systems for nuclear fusion devices, and in particular to a transition feeder. Background Technology

[0002] As a key component of nuclear fusion reactors, the feeder system provides power and cooling medium, directly affecting the reactor's operational performance and safety.

[0003] The transition feeder straight section is located in the middle section of the feeder system and generally includes a heat shield, an outer cylinder, a conductor, and a support structure. The support structure is used to support the conductor, and the conductor is used to deliver current to the magnet in the nuclear fusion reactor.

[0004] However, when a conductor is energized, it generates a very large Lorentz force. The support structure in the existing technology has low support strength under the influence of the Lorentz force and cannot effectively support the conductor, resulting in poor positional stability of the conductor. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a transition feeder that can prevent two adjacent support plates from separating from each other due to the repulsive force in the first direction after the conductor is energized, thus solving the technical problem in the prior art where the support structure has low support strength under the influence of Lorentz force and cannot effectively support the conductor.

[0006] According to an embodiment of the present invention, a transition feeder includes: an outer cylinder having a receiving cavity formed therein; a support assembly and a plurality of conductors, wherein the support assembly and the plurality of conductors are disposed within the receiving cavity, at least a portion of the support assembly abuts against the inner wall surface of the outer cylinder, the plurality of conductors are spaced apart on the support assembly along a first direction, the support assembly supports the conductors, and the conductors are used to deliver current to a magnet; wherein the support assembly includes a support body, the support body includes a first connecting plate and a plurality of support plates, the plurality of support plates are arranged sequentially along the first direction, a first mounting hole is defined between two adjacent support plates, the conductors pass through the first mounting hole, the first connecting plate is fixedly connected to the plurality of support plates respectively, and the first connecting plate at least surrounds the first mounting hole on opposite sides in the first direction.

[0007] According to the transition feeder of the present invention, by configuring the first connecting plate to be fixedly connected to a plurality of support plates respectively and by having the first connecting plate at least surround the opposite sides of the first mounting hole in the first direction, the first connecting plate is used to reinforce the two adjacent support plates. This achieves reinforcement of the opposite sides of the first mounting hole in the first direction, which can prevent the two adjacent support plates from separating from each other due to the repulsive force in the first direction after the conductor is energized. This can prevent gaps from appearing between the two adjacent support plates in the first direction, ensure the effectiveness of the first mounting hole, and thus ensure the structural strength of the support plate. It can achieve stable support of the conductor using the support components, which is beneficial to improving the positional stability of the conductor and ensuring the working performance of the conductor.

[0008] In some embodiments, the first connecting plate has a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm being spaced apart on opposite sides of the first mounting hole in the first direction; wherein, one end of the first connecting arm and the second connecting arm is connected to each other, and the other ends of the first connecting arm and the second connecting arm are spaced apart from each other.

[0009] In some embodiments, the support body further includes a second connecting plate, which is fixedly connected to the plurality of support plates and spaced apart from the first connecting plate.

[0010] In some embodiments, the transition feeder further includes a delivery pipe for conveying cryogenic liquid, and a second mounting hole is defined between two adjacent support plates, the delivery pipe passing through the second mounting hole, and the second connecting plate at least surrounds the opposite sides of the second mounting hole in the first direction.

[0011] In some embodiments, the support plate is an epoxy board, the first connecting plate and the second connecting plate are both metal plates, the first connecting plate is spaced apart from the conductor, the second connecting plate is spaced apart from the conveying pipe, and the first connecting plate and the second connecting plate are respectively fixedly connected to the support plate by a plurality of fasteners.

[0012] In some embodiments, the first connecting plate and / or the second connecting plate includes two plates, the two first connecting plates and / or the two second connecting plates are respectively disposed on opposite sides of the support plate in a second direction, the second direction intersecting the first direction; and / or, the first connecting plate and / or the second connecting plate are provided with through holes for reducing their heat conduction area.

[0013] In some embodiments, the transition feeder further includes a heat shield disposed within the receiving cavity and sleeved on the outer periphery of the conductor to reduce heat conduction; wherein, the support assembly further includes a plurality of support rod units, which are spaced apart in the circumferential direction of the support body, one end of each support rod unit is connected to the support body, and the other end of each support rod unit is supported on the inner wall surface of the outer cylinder, and the heat shield is fixedly connected to the support rod unit.

[0014] In some embodiments, the heat shield is sleeved on the outer periphery of the support body and spaced apart from the support body.

[0015] In some embodiments, the end face of the other end of the support rod unit is formed as an arc surface; and / or, in the axial direction of the outer cylinder, the end face of the other end of the support rod unit is movably supported on the outer cylinder.

[0016] In some embodiments, the support rod unit includes a support rod body, a ball head, and a clamping plate assembly. One end of the support rod body is connected to the support body, and the ball head is connected to the other end of the support rod body and abuts against the inner wall surface of the outer cylinder. The clamping plate assembly is connected to the support rod body and includes a first clamping plate and a second clamping plate disposed opposite to each other in the axial direction of the support rod body. A support cavity is formed between the first clamping plate and the second clamping plate. At least a portion of the heat shield is disposed in the support cavity and abuts against the first clamping plate and the second clamping plate, respectively.

[0017] In some embodiments, the ball head of one of the support rod units is movably disposed on the support rod body; wherein, one of the support rod units includes a first elastic member disposed between the clamping plate assembly and the ball head, the first elastic member being used to drive the ball head to move in a direction away from the clamping plate assembly.

[0018] In some embodiments, one of the support rod units further includes a second elastic element disposed between the clamping plate assembly and the support body, the second elastic element being used to drive the first clamping plate or the second clamping plate toward the heat shield.

[0019] In some embodiments, in the axial direction of the support rod body, both the first clamping plate and the second clamping plate have a first portion and a second portion, the first portion being in contact with the heat shield, and the second portion being located on the side of the first portion away from the heat shield, wherein the first portion is an epoxy component.

[0020] In some embodiments, the support assembly further includes a plurality of adapters, each of which corresponds one-to-one with a plurality of support rod units. The adapters are fixedly connected to the support body, and one end of each support rod unit is fixedly connected to the adapter. The adapters are metal components.

[0021] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the transition feeder in some embodiments of the present invention; Figure 2 These are isometric views of support components according to some embodiments of the present invention; Figure 3 This is a side view of a support component according to some embodiments of the present invention; Figure 4 This is an exploded view of the support components according to some embodiments of the present invention; Figure 5 for Figure 4 A magnified view of region I in the middle; Figure 6 This is a cross-sectional view of a support component according to some embodiments of the present invention; Figure 7 for Figure 6 Enlarged view of region II; Figure 8 for Figure 6 Enlarged view of region III.

[0023] Figure label: 1000, Transition feeder; 100. Outer cylinder; 110. Receiving cavity; 200. Support components; 210. Supporting structure; 211. First connecting plate; 2111, First connecting arm; 2112, Second connecting arm; 2113, First protrusion; 212. Support plate; 2121, First mounting slot; 2122, Second mounting slot; 2123, First recess; 213. First mounting hole; 214. Second connecting plate; 2141. Through hole; 2142. Third connecting arm; 2143. Fourth connecting arm; 215. Second mounting hole; 2151. Third mounting slot; 2152. Fourth mounting slot; 220. Support rod unit; 221. Support rod body; 222. Ball head; 223. Clamping plate assembly; 2231. First clamping plate; 2234. First part; 2235. Second part; 2232, Second clamping plate; 2233, Support cavity; 224. First elastic element; 225. Second elastic element; 226. Nuts; 227. Sleeve; 230. Adapter parts; 300. Conductor; 400. Conveying pipe; 500. Fasteners; 600. Heat shielding components. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0026] In existing technologies, transition feeders typically have two conductors, one for outgoing and one for returning, forming a current loop. Therefore, their current directions are opposite. In this case, the enormous electromagnetic force generated by the huge current (65kA) is a repulsive force, strongly driving the two conductors to move away from each other. This causes the adjacent support plates at the conductor mounting holes to be affected by the repulsive force of the two conductors. The repulsive force can cause the adjacent support plates to separate, leading to the failure of the support plates to support the conductors. The conductors are prone to swaying or displacement, which is detrimental to their stable operation and thus affects the performance of the transition feeder itself.

[0027] To solve the above technical problems, combined with Figures 1-8 As shown, this application proposes a transition feeder 1000.

[0028] The transition feeder 1000 of an embodiment of the present invention is described below with reference to the accompanying drawings.

[0029] like Figure 1 As shown, the transition feeder 1000 according to an embodiment of the present invention includes: an outer cylinder 100, a support assembly 200, and multiple conductors 300.

[0030] Among them, such as Figure 1 As shown, an accommodating cavity 110 is formed inside the outer cylinder 100. This reduces the installation difficulty of other components inside the transition feeder 1000 (such as the support assembly 200, conductor 300, etc.), and the outer cylinder 100 can also protect other components inside the transition feeder 1000, ensuring the normal operation of other components inside the transition feeder 1000.

[0031] It should be noted that the outer cylinder 100 is usually a vacuum environment to avoid interference from external impurities and to ensure the operation of other components inside the transition feeder 1000 and the working stability of other components inside the transition feeder 1000.

[0032] like Figure 1 As shown, the support assembly 200 and multiple conductors 300 are both disposed within the receiving cavity 110. At least a portion of the support assembly 200 abuts against the inner wall surface of the outer cylinder 100. The multiple conductors 300 are spaced apart on the support assembly 200 along a first direction. The support assembly 200 supports the conductors 300, and the conductors 300 are used to transmit current to the magnet. By disposing of both the support assembly 200 and the multiple conductors 300 within the receiving cavity 110, the outer cylinder 100 can protect the support assembly 200 and the multiple conductors 300, preventing external impurities from affecting their operation.

[0033] Meanwhile, by engaging at least a portion of the support assembly 200 with the inner wall of the outer cylinder 100, and by having multiple conductors 300 spaced apart on the support assembly 200 along the first direction, the outer cylinder 100 can stably support the support assembly 200. Since the support assembly 200 supports the conductors 300, the outer cylinder 100 can be used to support the conductors 300, thus ensuring the positional stability of the support assembly 200 and the conductors 300.

[0034] It should be noted that the first direction mentioned above can be understood as... Figure 1 The X direction is shown in the diagram.

[0035] Combination Figure 1 and Figure 2 As shown, the support assembly 200 includes a support body 210, which includes a first connecting plate 211 and multiple support plates 212. The multiple support plates 212 are arranged sequentially along a first direction, and a first mounting hole 213 is defined between two adjacent support plates 212. The conductor 300 passes through the first mounting hole 213. The first connecting plate 211 is fixedly connected to the multiple support plates 212 respectively, and the first connecting plate 211 is at least surrounding the first mounting hole 213 on opposite sides in the first direction. By defining the first mounting hole 213 between two adjacent support plates 212, the installation difficulty of the conductor 300 is reduced, and the conductor 300 can be supported by the support plates 212.

[0036] Meanwhile, by setting the first connecting plate 211 to be fixedly connected to multiple support plates 212 respectively, the relative positional stability between the multiple support plates 212 can be improved, thereby facilitating the formation of the first mounting hole 213 and reducing the difficulty of fixing the multiple support plates 212.

[0037] Furthermore, by at least surrounding the first mounting hole 213 on both sides in the first direction with the first connecting plate 211, the two adjacent support plates 212 located on both sides in the first direction of the first mounting hole 213 are reinforced by the first connecting plate 211. This prevents the two adjacent support plates 212 from separating from each other due to the repulsive force in the first direction after the conductor 300 is energized. This also prevents gaps from appearing between the two adjacent support plates 212 in the first direction, ensuring the effectiveness of the first mounting hole 213 and thus ensuring the structural strength of the support plate 212. This enables the support assembly 200 to stably support the conductor 300, which is beneficial to improving the positional stability of the conductor 300 and ensuring the working performance of the conductor 300.

[0038] In specific examples, combined Figure 1 , Figure 2 and Figure 6As shown, there are two conductors 300, which are placed side by side in the first direction. They are a outgoing conductor and a returning conductor, respectively. There are two first mounting holes 213, one of which is used to mount the outgoing conductor and the other is used to mount the returning conductor. The two conductors 300 deliver a current of 65kA to the magnet.

[0039] As can be seen from the above structure, the transition feeder 1000 of the present invention achieves the outer cylinder 100 supporting the support assembly 200 by having at least a portion of the support assembly 200 abut against the inner wall surface of the outer cylinder 100, and multiple conductors 300 are spaced apart on the support assembly 200 along the first direction, thereby achieving the outer cylinder 100 supporting the support assembly 200, and using the outer cylinder 100 to support the conductors 300, thus ensuring the positional stability of the support assembly 200 and the conductors 300.

[0040] Meanwhile, by defining the first mounting hole 213 between two adjacent support plates 212, the installation difficulty of the conductor 300 can be reduced.

[0041] Furthermore, by configuring the first connecting plate 211 to be fixedly connected to the plurality of support plates 212 respectively, and the first connecting plate 211 to surround at least the first mounting hole 213 on the opposite sides in the first direction, the first connecting plate 211 can be used to reinforce the two adjacent support plates 212 located on the opposite sides in the first direction of the first mounting hole 213, preventing the two adjacent support plates 212 from separating from each other due to the repulsive force in the first direction after the conductor 300 is energized, thereby improving the effectiveness of the first mounting hole 213, enabling the support assembly 200 to stably support the conductor 300, and ensuring the positional stability of the conductor 300.

[0042] It is understandable that, compared with the prior art, this application surrounds the first connecting plate 211 at least on the opposite sides of the first mounting hole 213 in the first direction, which can reinforce the opposite sides of the two adjacent support plates 212 in the first direction of the first mounting hole 213, and prevent the two adjacent support plates 212 from separating due to the repulsive force in the first direction after the conductor 300 is energized, thus ensuring the effectiveness of the first mounting hole 213, thereby ensuring the support strength of the support component 200 on the conductor 300, and making the positional stability of the conductor 300 good.

[0043] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0044] In some embodiments, combined with Figure 1 and Figure 2 As shown, there are three support plates 212. The first connecting plate 211 fixes the three support plates 212 together with bolts, screws, etc. to form a whole support body 210 structure.

[0045] In specific examples, combined Figure 2 and Figure 6 As shown, a first mounting hole 213 is formed between every two support plates 212, thereby forming two first mounting holes 213 on the support body 210 to fix the two conductors 300.

[0046] In some embodiments, combined with Figure 1 , Figure 2 and Figure 6 As shown, in the first direction, two adjacent support plates 212 are respectively provided with a first mounting groove 2121 and a second mounting groove 2122, which together define a first mounting hole 213. This reduces the difficulty of forming the first mounting hole 213 and enables multiple conductors 300 to be spaced apart on the support assembly 200 along the first direction.

[0047] In some embodiments, such as Figure 2 As shown, the first connecting plate 211 has a first connecting arm 2111 and a second connecting arm 2112, which are spaced apart and disposed on opposite sides of the first mounting hole 213 in the first direction. This arrangement aims to at least surround the first connecting plate 211 on opposite sides of the first mounting hole 213 in the first direction, thereby preventing adjacent support plates 212 from separating due to repulsive forces in the first direction after the conductor 300 is energized. This improves the support strength of the support body 210, ensures the positional stability of the conductor 300, and reduces the difficulty of placing the first connecting plate 211 on opposite sides of the first mounting hole 213 in the first direction.

[0048] In some embodiments, such as Figure 2 As shown, one end of the first connecting arm 2111 and the second connecting arm 2112 are connected to each other, and the other ends of the first connecting arm 2111 and the second connecting arm 2112 are spaced apart from each other. This achieves the interconnection of the first connecting arm 2111 and the second connecting arm 2112, and while ensuring the reinforcement strength of the first connecting plate 211 to the support plate 212, it reduces the area of ​​the first connecting plate 211, thereby reducing the heat conduction area of ​​the first connecting plate 211 and minimizing heat leakage of the support body 210.

[0049] Among them, heat leakage, also known as heat loss, is essentially the unintended transfer of heat from a high-temperature region to a low-temperature region. It usually refers to the heat flow that does not meet the design expectations between the target system (such as insulated containers, refrigeration equipment, heat engines) and the outside world or non-working areas. It is one of the important reasons for energy loss and efficiency reduction. Since the core characteristic of superconducting materials (magnets) is that the resistance is 0 when the temperature is below the critical temperature, and the superconducting state disappears immediately when the temperature exceeds the critical temperature, the heat leakage of the transition feeder 1000 will allow high-temperature heat to invade the superconducting magnet region, causing the local temperature of the magnet to rise and affecting the performance of the superconducting material. This application reduces the heat leakage area of ​​the first connecting plate 211 by setting the other ends of the first connecting arm 2111 and the second connecting arm 2112 relatively spaced apart, thereby reducing the heat leakage of the transition feeder 1000 to a certain extent.

[0050] In some embodiments, combined with Figure 2 , Figure 4 and Figure 5 As shown, the first connecting plate 211 and the support plate 212 are positioned and engaged by the first protrusion 2113 and the first groove 2123. This reduces the difficulty of positioning and installing the first connecting plate 211 and the support plate 212, improves the installation accuracy of the first connecting plate 211 and the support plate 212, increases the contact area of ​​the first connecting plate 211 and the support plate 212, improves the connection strength of the first connecting plate 211 and the support plate 212, and makes the relative position of the first connecting plate 211 and the support plate 212 stable, so as to facilitate the fixation of multiple support plates 212 using the first connecting plate 211.

[0051] In some embodiments, combined with Figure 2 , Figure 4 and Figure 5 As shown, one of the first protrusion 2113 and the first groove 2123 is provided on the first connecting plate 211, and the other is provided on the support plate 212. This can be understood as follows: when the first protrusion 2113 is provided on the first connecting plate 211, the first groove 2123 is provided on the support plate 212; or, when the first protrusion 2113 is provided on the support plate 212, the first groove 2123 is provided on the first connecting plate 211.

[0052] In specific examples, combined Figure 2 , Figure 4 and Figure 5 As shown, the first protrusion 2113 is provided on the first connecting plate 211, and the first groove 2123 is provided on the support plate 212. Through the positioning and cooperation of the first protrusion 2113 and the first groove 2123, the installation accuracy of the first connecting plate 211 and the support plate 212 can be guaranteed.

[0053] In some embodiments, such as Figure 2As shown, the support body 210 also includes a second connecting plate 214, which is fixedly connected to multiple support plates 212 and spaced apart from the first connecting plate 211. By configuring the second connecting plate 214 to be fixedly connected to multiple support plates 212, the relative positional stability between the multiple support plates 212 can be further improved, and the difficulty of fixing the multiple support plates 212 can be reduced.

[0054] Meanwhile, by setting the second connecting plate 214 and the first connecting plate 211 at intervals, the heat conduction between the second connecting plate 214 and the first connecting plate 211 is blocked, thereby reducing the heat leakage between the second connecting plate 214 and the first connecting plate 211 to a certain extent, thus reducing the heat leakage of the support body 210.

[0055] In some embodiments, combined with Figure 1 and Figure 2 As shown, the transition feeder 1000 also includes a delivery pipe 400 for conveying cryogenic liquid. A second mounting hole 215 is defined between two adjacent support plates 212. The delivery pipe 400 passes through the second mounting hole 215, and a second connecting plate 214 surrounds at least on opposite sides of the second mounting hole 215 in the first direction. The delivery pipe 400 reduces the difficulty of conveying cryogenic liquid and facilitates stable transmission of the cryogenic liquid.

[0056] Meanwhile, by defining a second mounting hole 215 between two adjacent support plates 212, the installation difficulty of the conveying pipe 400 can be reduced, and the conveying pipe 400 can be supported by the support plate 212.

[0057] Furthermore, by at least surrounding the second mounting hole 215 on both sides in the first direction with the second connecting plate 214, the two adjacent support plates 212 located on both sides in the first direction of the second mounting hole 215 are reinforced by the second connecting plate 214, preventing the two adjacent support plates 212 from separating under the action of the conveying pipe 400. This prevents gaps from appearing between the two adjacent support plates 212 in the first direction, ensuring the effectiveness of the second mounting hole 215, thereby ensuring the structural strength of the support plate 212. This enables the support assembly 200 to stably support the conveying pipe 400, which is beneficial to improving the positional stability of the conveying pipe 400 and ensuring the working performance of the conveying pipe 400.

[0058] In specific examples, combined Figure 1 , Figure 2 and Figure 6As shown, the delivery pipe 400 has two pipes, which are divided into a cooling pipe inlet and a cooling pipe outlet. There are two second mounting holes 215, one of which is used to install the cooling pipe inlet and the other is used to install the cooling pipe outlet. The cooling pipe inlet and the cooling pipe outlet work together to deliver cryogenic liquid.

[0059] In some embodiments, combined with Figure 1 , Figure 2 and Figure 6 As shown, in the first direction, two adjacent support plates 212 are respectively provided with a third mounting groove 2151 and a fourth mounting groove 2152, which cooperate to define a second mounting hole 215. This reduces the difficulty of forming the second mounting hole 215 and enables the delivery pipe 400 to be placed on the support assembly 200.

[0060] In the description of this invention, features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0061] In some embodiments, such as Figure 2 As shown, the second connecting plate 214 has a third connecting arm 2142 and a fourth connecting arm 2143. The third connecting arm 2142 and the fourth connecting arm 2143 are spaced apart on opposite sides of the second mounting hole 215 in the first direction, and one end of the third connecting arm 2142 and the fourth connecting arm 2143 is connected to each other, while the other ends of the third connecting arm 2142 and the fourth connecting arm 2143 are spaced apart. This arrangement aims to at least surround the second connecting plate 214 on opposite sides of the second mounting hole 215 in the first direction, thereby preventing the two adjacent support plates 212 from separating under the action of the conveying pipe 400, further improving the support strength of the support body 210, and ensuring the positional stability of the conveying pipe 400.

[0062] Meanwhile, by connecting one end of the third connecting arm 2142 and the fourth connecting arm 2143 to each other, and by spacing the other ends of the third connecting arm 2142 and the fourth connecting arm 2143 relative to each other, the interconnection of the third connecting arm 2142 and the fourth connecting arm 2143 is achieved. Furthermore, while ensuring the reinforcing strength of the second connecting plate 214 on the support plate 212, the area of ​​the second connecting plate 214 is reduced, thereby reducing the heat conduction area of ​​the second connecting plate 214 and minimizing heat leakage in the support body 210.

[0063] In some embodiments, the support plate 212 is an epoxy board, and the first connecting plate 211 and the second connecting plate 214 are both metal plates. The first connecting plate 211 is spaced apart from the conductor 300, and the second connecting plate 214 is spaced apart from the conveying pipe 400. The first connecting plate 211 and the second connecting plate 214 are respectively fixedly connected to the support plate 212 by a plurality of fasteners 500. The plurality of fasteners 500 can reduce the installation difficulty of the first connecting plate 211 and the second connecting plate 214 to the support plate 212, and ensure the connection strength of the first connecting plate 211 and the second connecting plate 214 to the support plate 212. The first connecting plate 211 and the second connecting plate 214 cooperate to achieve a fixed connection of the plurality of support plates 212, ensuring the positional stability of the first connecting plate 211 and the second connecting plate 214.

[0064] Since the support plate 212 is in direct contact with the conductor 300 and the conveying pipe 400, by setting the support plate 212 as an epoxy board, which is an epoxy resin insulating board, the support plate 212 also has low thermal conductivity and good electrical insulation properties due to the low thermal conductivity and good electrical insulation properties of epoxy material. On the one hand, it can suppress the heat leakage of the support body 210, and on the other hand, it can insulate the conductor 300 and the support plate 212, ensuring the safe transmission of high current inside the conductor 300.

[0065] Meanwhile, by setting both the first connecting plate 211 and the second connecting plate 214 as metal plates, the structural strength of the first connecting plate 211 and the second connecting plate 214 is improved, and the fixing effect of the first connecting plate 211 on the support plates 212 on the opposite sides of the first mounting hole 213 in the first direction and the fixing effect of the second connecting plate 214 on the support plates 212 on the opposite sides of the second mounting hole 215 in the first direction are guaranteed.

[0066] In addition, by spaced apart from the conductor 300 by the first connecting plate 211 and spaced apart from the conveying pipe 400, the heat transfer from the first connecting plate 211 to the conductor 300 and the heat transfer from the second connecting plate 214 to the conveying pipe 400 are reduced, thereby reducing the impact of heat leakage on the conductor 300 and the conveying pipe 400.

[0067] In some embodiments, the first connecting plate 211 and the second connecting plate 214 are both made of stainless steel, which ensures the structural strength of the first connecting plate 211 and the second connecting plate 214, and is also suitable for the vacuum environment of the transition feeder 1000.

[0068] Of course, in other embodiments, the first connecting plate 211 and the second connecting plate 214 may also be made of titanium alloy, aluminum alloy, etc. This application does not limit the metal materials used for the first connecting plate 211 and the second connecting plate 214.

[0069] In some embodiments, the fastener 500 is a bolt or screw, etc.

[0070] In some embodiments, combined with Figure 2 and Figure 3 As shown, the first connecting plate 211 and / or the second connecting plate 214 include two plates, with the two first connecting plates 211 and / or the two second connecting plates 214 respectively disposed on opposite sides of the support plate 212 in a second direction, which intersects with the first direction. This enhances the fixing effect of the first connecting plates 211 and / or the second connecting plates 214 on the support plate 212, further improving the structural strength and structural stability of the support plate 212.

[0071] The first connecting plate 211 and / or the second connecting plate 214 include two plates. The two first connecting plates 211 and / or the two second connecting plates 214 are respectively disposed on opposite sides of the support plate 212 in the second direction. This can be understood as follows: the first connecting plate 211 includes two plates, and the two first connecting plates 211 are respectively disposed on opposite sides of the support plate 212 in the second direction; or the second connecting plate 214 includes two plates, and the two second connecting plates 214 are respectively disposed on opposite sides of the support plate 212 in the second direction; or both the first connecting plate 211 and the second connecting plate 214 include two plates, and both the two first connecting plates 211 and the two second connecting plates 214 are respectively disposed on opposite sides of the support plate 212 in the second direction.

[0072] It should be noted that the second direction mentioned above can be understood as... Figure 3 The Y direction shown is the axial direction of the transition feeder 1000.

[0073] In specific examples, such as Figure 3 As shown, there are two first connecting plates 211 and two second connecting plates 214. The two first connecting plates 211 and the two second connecting plates 214 are respectively disposed on opposite sides of the support plate 212 in the second direction, thereby improving the structural strength and structural stability of the support plate 212.

[0074] In some embodiments, combined with Figure 2 and Figure 4As shown, the first connecting plate 211 and / or the second connecting plate 214 are provided with through holes 2141 for reducing their heat conduction area. This means that the first connecting plate 211 is provided with through holes 2141 for reducing its heat conduction area, or the second connecting plate 214 is provided with through holes 2141 for reducing its heat conduction area, or both the first connecting plate 211 and the second connecting plate 214 are provided with through holes 2141 for reducing their heat conduction area. Through these arrangements, the heat leakage of the first connecting plate 211 and / or the second connecting plate 214 can be reduced, thereby reducing the heat leakage of the support body 210, and thus reducing the heat leakage of the transition feeder 1000.

[0075] In some embodiments, combined with Figure 2 and Figure 4 As shown, there are multiple through holes 2141. The combination of multiple through holes 2141 can further reduce the heat conduction area of ​​the first connecting plate 211 and / or the second connecting plate 214, thereby reducing the heat conduction performance of the first connecting plate 211 and / or the second connecting plate 214, and reducing the heat leakage of the transition feeder 1000.

[0076] In specific examples, combined Figure 2 and Figure 4 As shown, the second connecting plate 214 is provided with three through holes 2141 to reduce its heat conduction area. The three through holes 2141 work together to effectively reduce the heat conduction area of ​​the second connecting plate 214, thereby reducing the heat leakage of the second connecting plate 214.

[0077] In some embodiments, such as Figure 1 As shown, the transition feeder 1000 also includes a heat shield 600, which is disposed within the receiving cavity 110 and sleeved around the outer periphery of the conductor 300 to reduce heat conduction. The heat shield 600 enables graded attenuation of heat load, and by using the heat shield 600 to reduce the radiative heat leakage of the conductor 300 due to the room temperature at the inner wall end of the outer cylinder 100, the risk of superconducting failure is reduced.

[0078] It should be noted that the inner wall of the outer cylinder 100 is affected by the external temperature. The inner wall of the outer cylinder 100 is at room temperature of 300K, the heat shield 600 is usually at 80K, and the superconducting components (conductor 300, delivery tube 400) are usually maintained at 4.5K. Since the containment cavity 110 is a vacuum environment, gas convection or conduction heat leakage is eliminated, leaving only radiation heat leakage. The radiation heat leakage of the superconducting components at 4.5K from the inner wall temperature of the outer cylinder 100 (300K) is the main source of heat load.

[0079] The temperature inside the transition feeder 1000 is distributed in a gradient: 300K (inner wall of outer cylinder 100) → 80K (heat shield 600) → 4.5K (superconducting component). The heat shield 600, through its low-temperature shielding surface at 80K, divides the direct radiation from 300K (inner wall of outer cylinder 100) → 4.5K (superconducting component) into two levels of radiation: 300K (inner wall of outer cylinder 100) → 80K (heat shield 600) and 80K (heat shield 600) → 4.5K (superconducting component). By utilizing the low emissivity of the low-temperature surface, the heat transfer from radiation is greatly reduced, ensuring that the superconducting core components such as conductor 300 and transmission pipe 400 maintain an operating temperature of 4.5K.

[0080] It should also be noted that the K mentioned above refers to Kelvin, which is the basic unit of thermodynamic temperature.

[0081] In the specific example, the heat shield 600 is a cold shield. In the third direction, the cold shield is divided into an upper cold shield and a lower cold shield. The upper cold shield and the lower cold shield can be detached and fitted together to reduce the assembly difficulty of the heat shield 600.

[0082] It should be noted that third-party delivery can be understood as... Figure 1 The Z direction is shown in the diagram.

[0083] In some embodiments, combined with Figure 1 and Figure 2 As shown, the support assembly 200 also includes multiple support rod units 220, which are arranged at intervals around the circumference of the support body 210. One end of each support rod unit 220 is connected to the support body 210, and the other end is supported on the inner wall of the outer cylinder 100. The heat shield 600 is fixedly connected to the support rod unit 220. By setting multiple support rod units 220, the installation difficulty of the support body 210 and the heat shield 600 can be reduced. The support rod units 220 can effectively support both the support body 210 and the heat shield 600, thereby ensuring the positional stability of the support body 210 and the heat shield 600.

[0084] In some embodiments, such as Figure 1 As shown, the heat shield 600 is sleeved on the outer periphery of the support body 210 and spaced apart from the support body 210. The spaced arrangement can reduce the heat conduction between the heat shield 600 and the support body 210, thereby reducing the heat conduction from the inner wall end of the outer cylinder 100 to the support body 210, so that the superconducting core components such as the conductor 300 and the conveying pipe 400 can maintain an operating temperature of 4.5K.

[0085] In some embodiments, combined with Figure 1 and Figure 2As shown, the end face of the other end of the support rod unit 220 is formed as an arc surface. This allows the other end of the support rod unit 220 to form a spherical contact with the inner wall surface of the outer cylinder 100. While achieving effective support of the support rod unit 220 by the outer cylinder 100, it also reduces the thermal contact area between the inner wall surface of the outer cylinder 100 and the other end of the support rod unit 220, thereby reducing the impact of thermal radiation from the inner wall of the outer cylinder 100 on superconducting core components such as the conductor 300 and the delivery pipe 400.

[0086] In some embodiments, the end face of the other end of the support rod unit 220 is movably supported on the outer cylinder 100 in the axial direction of the outer cylinder 100, so as to facilitate the installation and adjustment of the support assembly 200.

[0087] It should be noted that, since the conductor 300 and the conveying pipe 400 will undergo cold contraction displacement during actual use, if the support component 200 cannot move axially in the outer cylinder 100, the conductor 300 and the conveying pipe 400 may be strained and damaged during the cold contraction process.

[0088] Based on this, the end face of the other end of the support rod unit 220 is configured to be movably supported on the outer cylinder 100, so that the support assembly 200 can move axially relative to the outer cylinder 100 when the conductor 300 and the conveying pipe 400 are cold-shrinking and deformed, and reduce the difficulty of the support assembly 200 moving axially in the outer cylinder 100, thereby avoiding damage to the conductor 300 and the conveying pipe 400 during the cold shrinking process.

[0089] Meanwhile, by forming a spherical contact between the other end of the support rod unit 220 and the inner wall surface of the outer cylinder 100, the difficulty of moving the support assembly 200 in the axial direction of the outer cylinder 100 can be further reduced.

[0090] In specific examples, combined Figure 1 and Figure 2 As shown, there are three support rod units 220. When the conductor 300 and the conveying pipe 400 move axially due to cold shrinkage and deformation, the end faces of the other ends of the three support rod units 220 move relative to the outer cylinder 100, so that the three support rod units 220, along with the support body 210, move in the direction of cold shrinkage and avoid damage to the conductor 300.

[0091] In some embodiments, combined with Figure 6 , Figure 7 and Figure 8As shown, the support rod unit 220 includes a support rod body 221, a ball head 222, and a clamping plate assembly 223. One end of the support rod body 221 is connected to the support body 210. The ball head 222 is connected to the other end of the support rod body 221 and abuts against the inner wall surface of the outer cylinder 100. The clamping plate assembly 223 is connected to the support rod body 221 and includes a first clamping plate 2231 and a second clamping plate 2232 arranged opposite to each other in the axial direction of the support rod body 221. A support cavity 2233 is formed between the first clamping plate 2231 and the second clamping plate 2232. At least a portion of the heat shield 600 is disposed in the support cavity 2233 and abuts against the first clamping plate 2231 and the second clamping plate 2232 respectively. By connecting one end of the support rod body 221 to the support body 210, the difficulty of connecting one end of the support rod unit 220 to the support body 210 is reduced.

[0092] Meanwhile, by connecting the ball head 222 to the other end of the support rod body 221 and engaging with the inner wall surface of the outer cylinder 100, the other end of the support rod unit 220 forms a spherical contact with the inner wall surface of the outer cylinder 100. This enables the outer cylinder 100 to support the ball head 222 and the support rod body 221, thereby enabling the outer cylinder 100 to support the support body 210, which helps to ensure the positional stability of the support body 210.

[0093] By connecting the clamping plate assembly 223 to the support rod body 221 and including a first clamping plate 2231 and a second clamping plate 2232 disposed opposite to each other in the axial direction of the support rod body 221, the support rod body 221 can support the clamping plate assembly 223. The first clamping plate 2231 and the second clamping plate 2232 can reduce the molding difficulty of the support cavity 2233 and reduce the installation difficulty of at least part of the heat shield 600.

[0094] Furthermore, by placing at least a portion of the heat shield 600 within the support cavity 2233 and engaging with the first clamping plate 2231 and the second clamping plate 2232 respectively, the heat shield 600 is fixed by clamping both sides of at least a portion of it with the first clamping plate 2231 and the second clamping plate 2232, thereby ensuring the positional stability of the heat shield 600.

[0095] In some embodiments, the ball head 222 of one of the support rod units 220 is movably disposed on the support rod body 221. This allows the ball head 222 to adaptively move relative to the support rod body 221 when the cross-sectional roundness of the inner wall surface of the outer cylinder 100 is not round, so that the ball head 222 is movably supported on the outer cylinder 100, reducing the difficulty of moving the support assembly 200 along the axial direction of the outer cylinder 100.

[0096] It should be noted that the adaptive movement of the ball head 222 relative to the support rod body 221 can be understood as follows: when the roundness change of the outer cylinder 100 causes the inner diameter of the outer cylinder 100 to decrease, the inner wall surface of the outer cylinder 100 presses against the ball head 222, causing the ball head 222 to move radially inward relative to the support rod body 221 towards the outer cylinder 100, so that the ball head 222 maintains spherical contact with the inner wall surface of the outer cylinder 100; when the roundness change of the outer cylinder 100 causes the inner diameter of the outer cylinder 100 to increase, the ball head 222 moves radially outward relative to the support rod body 221 towards the outer cylinder 100, so that the ball head 222 maintains spherical contact with the inner wall surface of the outer cylinder 100, which facilitates the movable support of the support rod unit 220 on the outer cylinder 100, thereby reducing the difficulty of moving the support assembly 200 in the axial direction of the outer cylinder 100.

[0097] In some embodiments, combined with Figure 6 and Figure 8 As shown, one of the support rod units 220 includes a first elastic element 224, which is disposed between the clamping plate assembly 223 and the ball head 222. The first elastic element 224 is used to drive the ball head 222 to move away from the clamping plate assembly 223. The first elastic element 224 can provide elastic force to the ball head 222, reducing the difficulty of the ball head 222 moving away from the clamping plate assembly 223, making it easier for the support assembly 200 to move axially in the outer cylinder 100, thereby reducing the influence of the cross-sectional roundness of the inner wall surface of the outer cylinder 100 on the axial displacement of the support assembly 200.

[0098] In some embodiments, the first elastic element 224 is formed as a spring.

[0099] In a specific example, during the movement of the support assembly 200 along the axial direction of the outer cylinder 100, when the roundness change of the outer cylinder 100 causes the inner diameter of the outer cylinder 100 to decrease, the inner wall surface of the outer cylinder 100 presses the ball head 222 to move toward the clamping plate assembly 223; when the roundness change of the outer cylinder 100 causes the inner diameter of the outer cylinder 100 to increase, the first elastic element 224 drives the ball head 222 to move away from the clamping plate assembly 223, so that the outer diameter of the support assembly 200 can be adaptively adjusted according to the inner diameter of the outer cylinder 100, thereby making it easier for the support assembly 200 to move along the axial direction of the outer cylinder 100.

[0100] In some embodiments, combined with Figure 6 and Figure 8As shown, one of the support rod units 220 also includes a second elastic element 225. The second elastic element 225 is disposed between the clamping plate assembly 223 and the support body 210. The second elastic element 225 is used to drive the first clamping plate 2231 or the second clamping plate 2232 to move towards the heat shield 600. This allows the heat shield 600 to be clamped by the cooperation of the second clamping plate 2232 and the first clamping plate 2231, thereby fixing the heat shield 600 to the support rod unit 220. This achieves the purpose of supporting the heat shield 600 with the support assembly 200 and ensuring the positional stability of the heat shield 600.

[0101] The second elastic element 225 is used to drive the first clamping plate 2231 or the second clamping plate 2232 to move toward the heat shield 600. This can be understood as follows: when the first clamping plate 2231 is located at the end of the clamping plate assembly 223 closest to the second elastic element 225, the second elastic element 225 drives the first clamping plate 2231 to move toward the heat shield 600 and the second clamping plate 2232; when the second clamping plate 2232 is located at the end of the clamping plate assembly 223 closest to the second elastic element 225, the second elastic element 225 drives the second clamping plate 2232 to move toward the heat shield 600 and the first clamping plate 2231.

[0102] In specific examples, combined Figure 6 and Figure 8 As shown, the second elastic member 225 is formed as a spring, the second clamping plate 2232 is disposed near one end of the second elastic member 225, and the first clamping plate 2231 is disposed away from the second elastic member 225. The second elastic member 225 drives the second clamping plate 2232 to move toward the heat shield 600 and the first clamping plate 2231.

[0103] In some embodiments, combined with Figure 6 and Figure 8 As shown, one of the support rod units 220 also includes a sleeve 227, which is movably sleeved on the support rod body 221 and one end of the sleeve 227 is engaged with the second clamping plate 2232 for abutment. A second elastic member 225 is sleeved on the sleeve 227 and is used to drive the sleeve 227 to move, so as to drive the second clamping plate 2232 to move toward the heat shield 600 and the first clamping plate 2231.

[0104] In some embodiments, combined with Figure 6 and Figure 8As shown, along the axial direction of the support rod body 221, both the first clamping plate 2231 and the second clamping plate 2232 have a first portion 2234 and a second portion 2235. The first portion 2234 contacts and engages with the heat shield 600, and the second portion 2235 is located on the side of the first portion 2234 facing away from the heat shield 600. The first portion 2234 is made of epoxy resin. Because epoxy material has good low thermal conductivity, the first portion 2234 also has low thermal conductivity, which can reduce the thermally conductive cross-sectional area of ​​the clamping plate assembly 223, thereby reducing heat leakage of the support rod unit 220.

[0105] In some embodiments, the second part 2235 is a stainless steel part, which gives the second part 2235 a certain structural strength, thereby giving the first clamping plate 2231 and the second clamping plate 2232 a certain structural strength, so as to facilitate the clamping plate assembly 223 to stably support and fix the heat shield 600.

[0106] In some embodiments, the first part 2234 and the second part 2235 are bonded together to ensure the connection strength of the first part 2234 and the second part 2235, and to ensure the structural stability of the first clamping plate 2231 and the second clamping plate 2232.

[0107] In some embodiments, combined with Figure 2 and Figure 6 As shown, the support assembly 200 also includes multiple adapters 230, each corresponding to a different support rod unit 220. The adapters 230 are fixedly connected to the support body 210, and one end of each support rod unit 220 is fixedly connected to an adapter 230. The adapters 230 are metal parts. In other words, by fixing one end of the support rod unit 220 to the support body 210 via the adapters 230, and by corresponding multiple adapters 230 to multiple support rod units 220, the installation difficulty of the support assembly 200 can be reduced, and the assembly stability of the support assembly 200 can be improved.

[0108] It should be noted that, since the support plate 212 in the support body 210 is an epoxy board, the structural strength of the epoxy board is low. In the prior art, the support rod unit 220 is directly fixed to the support plate 212, which makes the structure of the support plate 212 easy to be damaged, resulting in poor fixed connection between the support rod unit 220 and the support plate 212. Based on this, this application provides a connector 230 made of metal material. The two ends of the connector 230 are respectively fixedly connected to one end of the support body 210 and one end of the support rod unit 220. This can ensure both the structural strength of the support body 210 and the connection strength between the support rod unit 220 and the support body 210.

[0109] In other words, by setting the adapter 230 as a metal part and fixing the adapter 230 to the support body 210, and fixing one end of the support rod unit 220 to the adapter 230, the structural strength of the support body 210 at the adapter 230 is enhanced, the connection strength between one end of the support rod unit 220 and the adapter 230 is guaranteed, and the connection effect between the support rod unit 220 and the support body 210 is improved.

[0110] In some embodiments, the adapter 230 can be fixed to the support body 210 by bolts, screws or the like.

[0111] In specific examples, combined Figure 2 and Figure 6 As shown, there are three adapters 230, which are fixed to the support body 210 by bolts, so that the multiple adapters 230 correspond one-to-one with the multiple support rod units 220.

[0112] In some embodiments, combined with Figure 6 and Figure 7 As shown, the support rod unit 220 also includes a nut 226, which is used to press the clamping plate assembly 223 to the adapter 230. The nut 226 can reduce the installation difficulty of the support rod unit 220 and the adapter 230, make the support rod unit 220 and the adapter 230 firmly connected, and improve the positional stability of the clamping plate assembly 223, so as to effectively support the heat shield 600 using the clamping plate assembly 223.

[0113] It should be noted that, compared with the complex support structure of conductors in the prior art, the support component 200 of this application has a simple structure and is easy to use. It can be applied to conductors 300 with ultra-high current and will not cause damage to conductors 300 and support plate 212 due to electromagnetic force and cold contraction. At the same time, the support component 200 has low overall thermal conductivity and low heat leakage. In other words, the support component 200 of this application can meet the requirements of supporting ultra-high current conductors 300 under extremely low temperature insulation and non-magnetic ultra-high vacuum conditions.

[0114] In a specific example, the installation process for transition feeder 1000 is as follows: First, three adapters 230 are fixed to the support plate 212 and respectively to the top and bottom ends of the support plate 212. Next, three support rod units 220 are fixed to the adapters 230. The conductor 300 and the conveying pipe 400 are respectively inserted into the first mounting hole 213 and the second mounting hole 215, and the first connecting plate 211 and the second connecting plate 214 are fixed to the support plate 212 with fasteners 500, so as to fix the three support plates 212 together. The lower cold screen is lifted by a crane using a lifting fixture, and the lower cold screen is fixed to the support rod units 220 at both ends of the bottom of the support plate 212 by the clamping plate assembly 223. The upper cold screen is lifted by a crane using a lifting fixture, and the upper cold screen is fixed to the support rod unit 220 at the top of the support plate 212 by the clamping plate assembly 223. Then, the upper and lower cold screens are connected by bolts to form a heat shield 600.

[0115] Further, adjust the positions of the three support rod units 220, install the outer cylinder 100 using guide rails and hoists, and check whether the ball heads 222 of the three support rod units 220 are in good contact with the inner wall of the outer cylinder 100.

[0116] The thickness of the support plate 212 and the diameter of the support rod body 221 of the support rod unit 220 are determined by analysis and calculation results, and the position distribution of the support rod unit 220 is determined by experiments.

[0117] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and 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 invention based on the specific circumstances.

[0118] Figure 4 The above illustration shows a single second connecting plate 214 with three through holes 2141 for illustrative purposes. However, after reading the above technical solution, those skilled in the art will obviously understand that applying this solution to a single second connecting plate 214 with one, three, four or more through holes 2141 would also fall within the protection scope of this invention.

[0119] Other components of the transition feeder 1000 according to embodiments of the present invention, such as the outer cylinder 100, conductor 300, and delivery pipe 400, are known to those skilled in the art and will not be described in detail here.

[0120] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0121] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A transition feeder, characterized in that, include: Outer cylinder (100), wherein a receiving cavity (110) is formed inside the outer cylinder (100); A support assembly (200) and multiple conductors (300) are provided within the receiving cavity (110). At least a portion of the support assembly (200) is in a stop-fitting engagement with the inner wall surface of the outer cylinder (100). The multiple conductors (300) are spaced apart on the support assembly (200) along a first direction. The support assembly (200) is used to support the conductors (300), and the conductors (300) are used to supply current to the magnet. The support assembly (200) includes a support body (210), which includes a first connecting plate (211) and a plurality of support plates (212). The plurality of support plates (212) are arranged sequentially along the first direction, and a first mounting hole (213) is defined between two adjacent support plates (212). The conductor (300) passes through the first mounting hole (213). The first connecting plate (211) is fixedly connected to the plurality of support plates (212) respectively, and the first connecting plate (211) is at least surrounding the first mounting hole (213) on opposite sides in the first direction.

2. The transition feeder according to claim 1, characterized in that, The first connecting plate (211) has a first connecting arm (2111) and a second connecting arm (2112), the first connecting arm (2111) and the second connecting arm (2112) being spaced apart on opposite sides of the first mounting hole (213) in the first direction; In this configuration, one end of the first connecting arm (2111) and the second connecting arm (2112) are connected to each other, and the other ends of the first connecting arm (2111) and the second connecting arm (2112) are spaced apart from each other.

3. The transition feeder according to claim 1, characterized in that, The supporting body (210) further includes a second connecting plate (214), which is fixedly connected to a plurality of the supporting plates (212) and spaced apart from the first connecting plate (211).

4. The transition feeder according to claim 3, characterized in that, It also includes a delivery pipe (400) for conveying cryogenic liquid, and a second mounting hole (215) is defined between two adjacent support plates (212), the delivery pipe (400) passing through the second mounting hole (215), and the second connecting plate (214) surrounding at least on opposite sides of the second mounting hole (215) in the first direction.

5. The transition feeder according to claim 4, characterized in that, The support plate (212) is an epoxy board, and the first connecting plate (211) and the second connecting plate (214) are both metal plates. The first connecting plate (211) is spaced apart from the conductor (300), and the second connecting plate (214) is spaced apart from the conveying pipe (400). The first connecting plate (211) and the second connecting plate (214) are respectively fixedly connected to the support plate (212) by a plurality of fasteners (500).

6. The transition feeder according to claim 3, characterized in that, The first connecting plate (211) and / or the second connecting plate (214) includes two, and the two first connecting plates (211) and / or the two second connecting plates (214) are respectively disposed on opposite sides of the support plate (212) in the second direction, the second direction intersecting the first direction; And / or, the first connecting plate (211) and / or the second connecting plate (214) are provided with through holes (2141) for reducing their heat conduction area.

7. The transition feeder according to any one of claims 1-6, characterized in that, It also includes a heat shield (600), which is disposed inside the receiving cavity (110) and sleeved on the outer periphery of the conductor (300) to reduce heat conduction; The support assembly (200) further includes a support rod unit (220), which comprises a plurality of support rod units (220) arranged at intervals in the circumferential direction of the support body (210). One end of the support rod unit (220) is connected to the support body (210), and the other end of the support rod unit (220) is supported on the inner wall surface of the outer cylinder (100). The heat shield (600) is fixedly connected to the support rod unit (220).

8. The transition feeder according to claim 7, characterized in that, The heat shield (600) is sleeved on the outer periphery of the support body (210) and spaced apart from the support body (210).

9. The transition feeder according to claim 7, characterized in that, The end face of the other end of the support rod unit (220) is formed as an arc surface; And / or, in the axial direction of the outer cylinder (100), the end face of the other end of the support rod unit (220) is movably supported on the outer cylinder (100).

10. The transition feeder according to claim 9, characterized in that, The support rod unit (220) includes a support rod body (221), a ball head (222), and a clamping plate assembly (223). One end of the support rod body (221) is connected to the support body (210), and the ball head (222) is connected to the other end of the support rod body (221) and abuts against the inner wall of the outer cylinder (100). The clamping plate assembly (223) is connected to the support rod body (221) and includes a first clamping plate (2231) and a second clamping plate (2232) arranged opposite to each other in the axial direction of the support rod body (221). A support cavity (2233) is formed between the first clamping plate (2231) and the second clamping plate (2232). At least a portion of the heat shield (600) is disposed in the support cavity (2233) and abuts against the first clamping plate (2231) and the second clamping plate (2232) respectively.

11. The transition feeder according to claim 10, characterized in that, The ball head (222) of one of the support rod units (220) is movably disposed on the support rod body (221); One of the support rod units (220) includes a first elastic element (224) disposed between the clamping plate assembly (223) and the ball head (222), the first elastic element (224) being used to drive the ball head (222) to move away from the clamping plate assembly (223).

12. The transition feeder according to claim 11, characterized in that, One of the support rod units (220) further includes a second elastic element (225) disposed between the clamping plate assembly (223) and the support body (210), and the second elastic element (225) is used to drive the first clamping plate (2231) or the second clamping plate (2232) to move toward the heat shield (600).

13. The transition feeder according to claim 10, characterized in that, In the axial direction of the support rod body (221), the first clamping plate (2231) and the second clamping plate (2232) each have a first part (2234) and a second part (2235). The first part (2234) is in contact with the heat shield (600), and the second part (2235) is located on the side of the first part (2234) away from the heat shield (600). The first part (2234) is an epoxy component.

14. The transition feeder according to claim 7, characterized in that, The support assembly (200) also includes a plurality of adapters (230), each of which corresponds to a plurality of support rod units (220). The adapters (230) are fixedly connected to the support body (210), and one end of each support rod unit (220) is fixedly connected to the adapter (230). The adapters (230) are metal parts.

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