Superconducting structure, detection device and fabrication method

Abstract

The application provides a superconducting structure, a detection device and a manufacturing method. The superconducting structure comprises a winding assembly, the winding assembly comprises a first winding component and a second winding component, the first winding component and the second winding component are arranged along a preset direction; the first winding component and the second winding component are attached; a superconducting tape, one end of the superconducting tape has a first connecting end, and the other end of the superconducting tape has a second connecting end; wherein the superconducting tape has a first superconducting part wound on the first winding component and a second superconducting part wound on the second winding component; the first connecting end is connected with the first superconducting part; and the second connecting end is connected with the second superconducting part. The superconducting structure solves the problem of inconvenient use of the superconducting structure in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of superconducting materials, in particular to a superconducting structure, a detection device and a manufacturing method. BACKGROUND

[0002] Since the last century, superconducting materials have been one of the most active research fields in contemporary science and technology due to their excellent physical properties such as zero resistance and magnetic resistance. Compared with low-temperature superconducting materials, high-temperature superconducting materials have the characteristics of direct current without resistance, high current-carrying capacity, excellent performance under magnetic field, etc., so that high-temperature superconducting magnets made of them have been widely concerned by people in recent years. Due to the flat structure of high-temperature superconducting materials, most high-temperature superconducting magnet equipment is stacked by using pie-shaped coil structure.

[0003] High-temperature superconducting coils have two basic styles of spiral tube and pie. The spiral tube winding is completed by winding a strip, without welding joints in the middle, which can effectively avoid the generation of contact resistance. The disadvantage is that the superconducting strip winding needs to be wound along the spiral staggered, which causes the entire strip length to be bent and twisted at the same time. The lateral twist is more damaging to the superconducting layer of the strip than the bending. The superimposition of the two damages easily leads to the destruction of the strip, resulting in unpredictable failures of superconducting equipment during operation and poor maintainability. In addition, due to the staggered winding, there are gaps between the left and right and the upper and lower adjacent strips inside the wound coil. These gaps form a complex spiral channel, resulting in poor coil insulation performance and reliability. Spiral winding is mostly used on low-voltage and high-current transformers.

[0004] The pie-shaped structure coil is wound by a strip in the radial direction to form a single pie. The process is simple, and the strip only has bending without lateral twisting, so the strip performance can be well maintained. At the same time, the strips inside the single pie are closely arranged, and the insulation treatment has high reliability. During the operation of the magnet, if a coil is damaged, the magnet can still work normally after replacing the coil. It is the mainstream winding structure of high-temperature superconducting coils and the main direction of future development.

[0005] However, the single-layer superconducting coil structure has only one port exposed, and the other port is inside the coil. An additional current lead is needed to connect it out, which increases the complexity of use and the magnetic field uniformity is weak. At the same time, although the existing superconducting structure has a collection probe, it cannot provide real-time feedback according to the magnetic field strength generated by the current in the surrounding wire. The present application can effectively control the generated magnetic field by collecting the central magnetic field and feeding back to the controller in real time. SUMMARY

[0006] The main purpose of the present application is to provide a superconducting structure, a detection device and a manufacturing method to solve the problem of inconvenient use of the prior art superconducting structure.

[0007] In order to achieve the above object, according to a first aspect of the present application, there is provided a superconducting structure, comprising: a winding assembly, the winding assembly comprising a first winding component and a second winding component, the first winding component and the second winding component being arranged along a preset direction; the first winding component and the second winding component being attached; a superconducting tape, one end of the superconducting tape having a first connecting end, the other end of the superconducting tape having a second connecting end; wherein the superconducting tape has a first superconducting part wound on the first winding component and a second superconducting part wound on the second winding component; the first connecting end being connected to the first superconducting part; and the second connecting end being connected to the second superconducting part.

[0008] Further, the first winding component is in a cylindrical structure; the superconducting tape is wound on an outer circumferential surface of the first winding component; and / or the second winding component is in a cylindrical structure; the superconducting tape is wound on an outer circumferential surface of the second winding component.

[0009] Further, the first winding component is in a ring structure; the superconducting tape is wound on an outer circumferential surface of the first winding component; and / or the second winding component is in a ring structure; the superconducting tape is wound on an outer circumferential surface of the second winding component.

[0010] Further, the superconducting structure further comprises a detection assembly for detecting a magnetic field strength; wherein the first winding component has a first accommodation channel in an inner portion thereof for accommodating at least a portion of the detection assembly; and / or the second winding component has a second accommodation channel in an inner portion thereof for accommodating at least a portion of the detection assembly.

[0011] Further, the detection assembly comprises a measurement coil, one end of the measurement coil being provided with a detection component for detecting the magnetic field strength, the detection component being located in the first accommodation channel and / or the second accommodation channel.

[0012] Further, the first winding component and / or the second winding component is made of an aluminum alloy material.

[0013] Further, the superconducting structure further comprises at least one fixing band, the at least one fixing band having an accommodation slot for accommodating the superconducting tape, the at least one fixing band being connected in sequence; wherein the at least one fixing band is connected to a side of the first superconducting part away from the first winding component; and / or the at least one fixing band is connected to a side of the second superconducting part away from the second winding component.

[0014] According to a second aspect of the present application, there is provided a detection device for detecting the superconducting structure described above, the detection device comprising a support, the winding assembly of the superconducting structure being arranged on the support; wherein the superconducting structure comprises a detection assembly for detecting a magnetic field strength of the superconducting structure, the detection assembly being connected to the support.

[0015] Further, the winding assemblies are multiple, and the detection assemblies are multiple, and the multiple detection assemblies are arranged in one-to-one correspondence with the multiple winding assemblies.

[0016] According to a third aspect of the present application, a manufacturing method is provided for manufacturing the superconducting structure, the manufacturing method comprising: taking out at least part of the superconducting tape in the first tape reel and winding it on the second tape reel; winding the remaining superconducting tape on the first tape reel on the first winding component to form the first connecting end; and winding the superconducting tape on the second tape reel on the second winding component to form the second connecting end.

[0017] The superconducting structure comprises winding assemblies, the winding assemblies comprise first winding components and second winding components, the first winding components and the second winding components are arranged along a preset direction; the first winding components and the second winding components are attached; the superconducting tape has a first connecting end at one end and a second connecting end at the other end; wherein the superconducting tape has a first superconducting part wound on the first winding component and a second superconducting part wound on the second winding component; the first connecting end is connected with the first superconducting part; and the second connecting end is connected with the second superconducting part. By adopting the above arrangement, the superconducting tape is wound on the first winding component and the second winding component in turn, so that the superconducting structure can generate a more stable magnetic field, and the first connecting end and the second connecting end are formed at the two ends of the superconducting tape, and the first connecting end and the second connecting end can be directly connected with external circuits, so that the production operation is more convenient, and the problem of inconvenient use of the superconducting structure in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the illustrative embodiments of the present application, and do not limit the present application. In the drawings:

[0019] Figure 1 A structural schematic diagram of one embodiment of the superconducting structure according to the present application is shown;

[0020] Figure 2 A structural schematic diagram of a first tape reel and a second tape reel for manufacturing the superconducting structure of the present application is shown;

[0021] Figure 3 A state schematic diagram in manufacturing the superconducting structure of the present application is shown;

[0022] Figure 4 A structural schematic diagram of another embodiment of the superconducting structure of the present application is shown.

[0023] In the above drawings, the following reference signs are used:

[0024] 1, winding assembly; 11, first winding part; 111, first containing channel; 12, second winding part; 121, second containing channel; 3, superconducting tape; 31, first connecting end; 32, second connecting end; 4, detection assembly; 41, measurement coil; 42, detection part; 5, fixing belt; 6, first belt disc; 7, second belt disc. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] Referring to Figures 1 to 4 , the superconducting structure of the embodiment comprises: a winding assembly 1, the winding assembly 1 comprising a first winding part 11 and a second winding part 12, the first winding part 11 and the second winding part 12 being arranged along a preset direction; the first winding part 11 and the second winding part 12 being attached; a superconducting tape 3, one end of the superconducting tape 3 having a first connecting end 31, the other end of the superconducting tape 3 having a second connecting end 32; wherein the superconducting tape 3 has a first superconducting part wound on the first winding part 11 and a second superconducting part wound on the second winding part 12; the first connecting end 31 is connected with the first superconducting part; and the second connecting end 32 is connected with the second superconducting part. With the above arrangement, the superconducting tape 3 is wound on the first winding part 11 and the second winding part 12 in turn, so that a more stable magnetic field can be generated by the superconducting structure, and the first connecting end 31 and the second connecting end 32 are formed at the two ends of the superconducting tape 3, which can be directly connected with an external circuit, thereby making the production operation more convenient and solving the problem of inconvenient use of the superconducting structure in the prior art.

[0027] Specifically, the superconducting tape 3 of the embodiment is a strip-shaped material made of superconducting material.

[0028] In the superconducting structure of the embodiment, referring to Figures 1 to 4 , the first winding part 11 is in a cylindrical structure; the superconducting tape 3 is wound on the outer peripheral surface of the first winding part 11; and / or the second winding part 12 is in a cylindrical structure; the superconducting tape 3 is wound on the outer peripheral surface of the second winding part 12.

[0029] Referring to Figures 1 to 4 , in the superconducting structure of the embodiment, the first winding part 11 is in a ring structure; the superconducting tape 3 is wound on the outer peripheral surface of the first winding part 11; and / or the second winding part 12 is in a ring structure; the superconducting tape 3 is wound on the outer peripheral surface of the second winding part 12.

[0030] In the superconducting structure of the embodiment, referring to Figures 1 to 4The superconducting structure further comprises a detection assembly 4 for detecting the magnetic field intensity; wherein the first winding component 11 has a first accommodating channel 111 in the interior thereof for accommodating at least part of the detection assembly 4; and / or the second winding component 12 has a second accommodating channel 121 in the interior thereof for accommodating at least part of the detection assembly 4.

[0031] Referring to Figures 1 to 4 In the superconducting structure of the embodiment, the detection assembly 4 comprises a measurement coil 41, one end of the measurement coil 41 is provided with a detection component 42 for detecting the magnetic field intensity, and the detection component 42 is located in the first accommodating channel 111 and / or the second accommodating channel 121.

[0032] In some embodiments, the first winding component 11 and the second winding component 12 are distributed along a vertical direction, the first winding component 11 is located above the second winding component 12, and the detection component 42 is located in the first accommodating channel 111.

[0033] In the superconducting structure of the embodiment, referring to Figures 1 to 4 The first winding component 11 and / or the second winding component 12 are made of an aluminum alloy material.

[0034] Referring to Figures 1 to 4 In the superconducting structure of the embodiment, the superconducting structure further comprises at least one fixing band 5, each fixing band 5 has an accommodating groove for accommodating the superconducting tape 3, and the at least one fixing band 5 are sequentially connected; wherein the at least one fixing band 5 is connected to the first superconducting part away from the first winding component 11; and / or the at least one fixing band 5 is connected to the second superconducting part away from the second winding component 12. With the above arrangement, the fixing band 5 can ensure the structural stability of the superconducting structure and ensure the performance of the superconducting structure.

[0035] In some embodiments, the fixing band 5 can be one or a plurality of sequentially connected fixing bands, and at least one fixing band 5 is arranged on the first superconducting part and the second superconducting part, respectively. Thus, the superconducting tape 3 on the first winding component 11 and the second winding component 12 is fixed.

[0036] The detection device of the embodiment is used for detecting the superconducting structure described above, and the detection device comprises a support, and the winding assembly 1 of the superconducting structure is arranged on the support; wherein the superconducting structure comprises a detection assembly 4 for detecting the magnetic field intensity of the superconducting structure, and the detection assembly 4 is connected to the support.

[0037] The detection device of the embodiment, the winding assembly 1 is a plurality of, the detection assembly 4 is a plurality of, and the plurality of detection assemblies 4 are arranged in one-to-one correspondence with the plurality of winding assemblies 1.

[0038] The manufacturing method of the superconducting structure of the embodiment is used for manufacturing the superconducting structure, and the manufacturing method comprises the following steps: taking out at least part of the superconducting tapes 3 in the first tape reel 6 and winding the superconducting tapes 3 on the second tape reel 7; winding the remaining superconducting tapes 3 on the first tape reel 6 on the first winding component 11 to form the first connecting end 31; and winding the superconducting tapes 3 on the second tape reel 7 on the second winding component 12 to form the second connecting end 32.

[0039] The manufacturing method of the superconducting structure of the embodiment is used for manufacturing the superconducting structure, and the manufacturing method comprises the following steps: taking out at least part of the superconducting tapes 3 in the first tape reel 6 and winding the superconducting tapes 3 on the second tape reel 7; winding the remaining superconducting tapes 3 on the first tape reel 6 on the first winding component 11 to form the first connecting end 31; and winding the superconducting tapes 3 on the second tape reel 7 on the second winding component 12 to form the second connecting end 32.

[0040] The manufacturing method of the superconducting structure of the embodiment improves the winding method of the conventional pancake coil structure, and adds a magnetic field measuring device, so that the coil volume is reduced, and the winding electrical performance is improved.

[0041] Half of all the tapes required for winding the double-layer coil are taken out from the first tape reel 6 to the second tape reel 7. When the first-layer coil is wound, all the tapes on the first tape reel 6 are wound on the low-temperature aluminum alloy support and fixed by using a polyimide adhesive tape. Then, all the tapes on the second tape reel 7 are wound on the second layer of the support, and the winding is completed.

[0042] The magnetic field measuring coil 41 is arranged at the center position of the double-layer coil and is used for monitoring the magnetic field size. The Hall probe (detection component 42) is placed on the lower-layer coil.

[0043] In the laboratory superconducting low-temperature environment, the single magnetic ring and the double magnetic ring are used for collecting and testing the magnetic field strength. The results show that the strength of the double-ring magnetic field is more than twice that of the single-layer, and the magnetic field distribution is more uniform.

[0044] From the above description, it can be seen that the above-mentioned embodiments of the superconducting structure of the present application achieve the following technical effects:

[0045] The two ports of the superconducting structure of the present application are externally arranged, and can be directly connected to the equipment for use, which is convenient to use.

[0046] The superconducting structure of the present application has a larger magnetic field strength, a higher central magnetic field uniformity, and a larger uniform magnetic field range. It is suitable for superconducting equipment with high magnetic field strength and high magnetic field uniformity, such as a nuclear magnetic resonance imaging instrument.

[0047] The superconducting structure of the present application reasonably utilizes the advantages of superconducting, strengthens the central magnetic field, reduces the coil volume, realizes the portability of the equipment, and can better utilize the space.

[0048] The non-insulated superconducting coil of the present application has the following three advantages: self-protection capability in case of overcurrent, no need for additional control, no need for a circuit breaking and current limiting device, and no need for insulation, and the manufacturing cost is lower.

[0049] The center magnetic field can be monitored in real time by the center electromagnetic induction device, the required magnetic field intensity can be observed, and the size of the magnetic field can be controlled through current control.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0051] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments are not intended to limit the scope of the present application, unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the authorized description, if appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0052] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0053] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0054] In addition, it should be pointed out that the use of "first", "second" and the like words to qualify parts, is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0055] The preferred embodiments of the present application have been described above with the purpose of enabling not to limit the scope of protection of the present application, but of enabling a person skilled in the art to make various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A superconducting structure, characterized by, The application relates to a superconducting structure. The superconducting structure comprises a winding assembly (1) and a superconducting tape (3). The winding assembly (1) comprises a first winding component (11) and a second winding component (12), and the first winding component (11) and the second winding component (12) are arranged along a preset direction. The superconducting tape (3) has a first connecting end (31) at one end and a second connecting end (32) at the other end. The superconducting tape (3) has a first superconducting part wound on the first winding component (11) and a second superconducting part wound on the second winding component (12). The first connecting end (31) is connected with the first superconducting part, and the second connecting end (32) is connected with the second superconducting part. The first winding component (11) is in a cylindrical structure or a ring structure, the superconducting tape (3) is wound on the outer circumferential surface of the first winding component (11), and / or the second winding component (12) is in a cylindrical structure or a ring structure, and the superconducting tape (3) is wound on the outer circumferential surface of the second winding component (12).

2. The superconducting structure of claim 1, wherein, The superconducting structure further comprises a detection assembly (4) for detecting the magnetic field intensity.

3. A method of making the superconducting structure of claim 1 or 2, wherein The first winding component (11) has a first accommodating channel (111) in the interior for accommodating at least part of the detection assembly (4), and / or the second winding component (12) has a second accommodating channel (121) in the interior for accommodating at least part of the detection assembly (4). The detection assembly (4) comprises a measuring coil (41), one end of the measuring coil (41) is provided with a detection component (42) for detecting the magnetic field intensity, and the detection component (42) is located in the first accommodating channel (111) and / or the second accommodating channel (121). The detection component (42) is in an arc structure. The superconducting structure further comprises at least one fixing belt (5), each fixing belt (5) has an accommodating groove for accommodating the superconducting tape (3), and at least one fixing belt (5) is connected in sequence. At least one fixing belt (5) is connected with the first superconducting part away from one side of the first winding component (11), and / or at least one fixing belt (5) is connected with the second superconducting part away from one side of the second winding component (12). The first winding component (11) and / or the second winding component (12) are made of an aluminum alloy material. The manufacturing method comprises the following steps. At least part of the superconducting tape (3) in a first tape reel (6) is taken out and wound on a second tape reel (7). The remaining superconducting tape (3) on the first tape reel (6) is wound on the first winding component (11) to form the first connecting end (31). The superconducting tape (3) on the second tape reel (7) is wound on the second winding component (12) to form the second connecting end (32).

Images