Testing tool suitable for superconducting material

Abstract

The invention discloses a testing tool suitable for a superconducting material, and relates to the technical field of superconducting material performance testing. Comprising a base and a first copper terminal assembly, the first copper terminal assembly comprises a first copper terminal and a second copper terminal, the first copper terminal and the second copper terminal are in sliding connection with the base, grooves are formed in the ends, close to each other, of the first copper terminal and the second copper terminal, and high-temperature superconducting strips are connected into the grooves; and the adapters are respectively arranged at one ends, far away from each other, of the first copper terminal and the second copper terminal, and the adapters are connected with an external power supply. According to the test tool suitable for the superconducting material, the two ends of the high-temperature superconducting material are welded to the high-temperature superconducting strip in the grooves of the first copper terminal and the second copper terminal respectively, an external power source is connected through the adapter, the high-temperature superconducting material connector is powered on, and the critical performance of the superconducting material can be measured in a low-temperature medium.

Description

Technical Field

[0001] The invention relates to the technical field of superconducting material performance testing, and more particularly to a testing tool suitable for superconducting materials. Background Art

[0002] Since its first discovery in 1986, high-temperature superconducting materials have become a research hotspot in the fields of condensed matter physics and materials science. Compared with traditional low-temperature superconducting materials, they have higher critical temperatures and stronger current-carrying capacity under high fields. This property makes high-temperature superconducting materials have wide application potential in energy, medicine, transportation, fusion and other fields.

[0003] As an important application form, high-temperature superconducting coils use the zero-resistance characteristics of superconducting materials to transmit current without energy loss and generate a strong magnetic field. This characteristic makes high-temperature superconducting coils widely used in fields such as NMR and accelerators. With the continuous advancement of materials and technologies, the magnetic field strength and caliber of high-temperature superconducting coils are also constantly improving, and their application potential is also increasing. However, in the preparation process of high-temperature superconducting coils, due to the limitation of the length of a single high-temperature superconducting material, it is inevitable to prepare joints to extend a single strip to complete the winding of the coil.

[0004] By carrying out performance test experiments on high-temperature superconducting material joints and coils at low temperatures, the critical performance of high-temperature superconducting material joints and coils can be mastered, which is very necessary for the design and winding of high-field magnets and also provides data support for the subsequent assembly of magnets. Therefore, how to provide a tooling for high-temperature superconducting material joints and coils to perform performance test experiments at low temperatures is a problem that technicians in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a test fixture suitable for superconducting materials, which can measure the critical properties of superconducting materials of different lengths in a low-temperature medium. In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The present invention provides a testing tool suitable for superconducting materials, comprising:

[0007] Base;

[0008] A first copper terminal assembly, the first copper terminal assembly comprising a first copper terminal and a second copper terminal, the first copper terminal and the second copper terminal being slidably connected to the base respectively, a groove being provided at one end of the first copper terminal and the second copper terminal close to each other, and a high-temperature superconducting tape being connected in each of the grooves;

[0009] The adapter is respectively provided at one end of the first copper terminal and the second copper terminal which are away from each other, and the adapter is connected to an external power supply.

[0010] Furthermore, the base includes a bottom plate, a top plate and a side wall, the bottom plate and the top plate are spaced apart and connected through the side wall, a first sliding groove is provided on the top plate, and the first copper terminal and the second copper terminal are respectively slidably connected to the first sliding groove.

[0011] Furthermore, a threaded hole is provided at one end of the first copper terminal close to the base plate, a sliding bolt is connected in the threaded hole, a diameter of the nut of the sliding bolt is larger than a width of the sliding groove, and the sliding bolt is used to realize a sliding connection between the first copper terminal and the first sliding groove.

[0012] Furthermore, threaded holes are provided on one end of the first copper terminal away from the bottom plate and on the adapter, and the adapter is connected to the first copper terminal by connecting bolts.

[0013] Furthermore, the top plate is also provided with a second sliding groove, the second sliding groove is arranged in parallel with the first sliding groove, and a third copper terminal and a fourth copper terminal are slidably arranged in the second sliding groove.

[0014] Furthermore, a third sliding groove is also arranged on the top plate, and the third sliding groove is arranged parallel to the first sliding groove, and a movable coil base is slidably arranged in the third sliding groove.

[0015] Further, the third sliding groove is arranged between the first sliding groove and the second sliding groove.

[0016] It can be seen from the above technical solution that, compared with the prior art, the present invention discloses a test jig suitable for superconducting materials, in which the two ends of the high-temperature superconducting material are respectively welded to the high-temperature superconducting tape in the groove of the first copper terminal and the high-temperature superconducting tape in the groove of the second copper terminal, and an external power supply is connected through an adapter to energize the high-temperature superconducting material joint to complete the critical performance test of the high-temperature superconducting material, and the test jig is adapted to high-temperature superconducting materials of different lengths by moving the first copper terminal and the second copper terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a testing tool suitable for superconducting materials provided by the present invention;

[0019] Figure 2 A side view of a test fixture suitable for superconducting materials provided by the present invention.

[0020] In the figure: 1. base; 11. bottom plate; 12. top plate; 13. side wall; 2. adapter; 3. first copper terminal; 4. connecting bolt; 5. second copper terminal; 6. third copper terminal; 7. high-temperature superconducting tape; 8. high-temperature superconducting joint; 9. moving coil base; 10. high-temperature superconducting coil. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-2 The embodiment of the present invention discloses a testing tool suitable for superconducting materials, comprising:

[0023] Base 1;

[0024] A first copper terminal assembly, the first copper terminal assembly comprises a first copper terminal 3 and a second copper terminal 5, the first copper terminal 3 and the second copper terminal 5 are respectively connected to the base 1 in a sliding manner, and a groove is provided at one end of the first copper terminal 3 and the second copper terminal 5 close to each other, and a high-temperature superconducting tape 7 is connected in each groove;

[0025] The adapter 2 is respectively provided at one end of the first copper terminal 3 and the second copper terminal 5 which are away from each other, and the adapter 2 is connected to an external power source.

[0026] In some embodiments, the high temperature superconducting tape 7 is welded to the groove.

[0027] When the high-temperature superconducting test piece is a high-temperature superconducting joint 8, the test tool is placed in a low-temperature medium, the two ends of the high-temperature superconducting joint 8 are welded to the high-temperature superconducting tape 7 on the first copper terminal 3 and the high-temperature superconducting tape 7 on the second copper terminal 5 respectively, the adapter 2 is connected to an external power supply, and current is passed through the high-temperature superconducting joint 8, so that the high-temperature superconducting joint 8 can complete the critical performance test of the high-temperature superconducting joint 8 in the low-temperature medium.

[0028] By making the first copper terminal 3 and the second copper terminal 5 slide on the base 1 , the test fixture can adapt to high-temperature superconducting joints 8 of different lengths.

[0029] In some embodiments, the base 1 includes a bottom plate 11, a top plate 12 and a side wall 13. The bottom plate 11 and the top plate are spaced apart and connected through the side wall. A first sliding groove is provided on the top plate, and the first copper terminal 3 and the second copper terminal 5 are respectively slidably connected to the first sliding groove.

[0030] The bottom ends of the first copper terminal 3 and the second copper terminal 5 are placed in the first sliding groove to ensure the stability of the first copper terminal 3 and the second copper terminal 5 during the sliding process.

[0031] In some embodiments, a threaded hole is provided at one end of the first copper terminal 3 close to the base plate 11, and a sliding bolt is connected in the threaded hole. The diameter of the sliding bolt nut is larger than the width of the sliding groove, and the sliding connection between the first copper terminal 3 and the first sliding groove is achieved through the sliding bolt.

[0032] When it is necessary to adjust the distance between the first copper terminal 3 and the second copper terminal 5, loosen the sliding bolt to separate the sliding bolt from the top plate of the base 1, so that the first copper terminal 3 and the second copper terminal 5 slide in the first sliding groove to adjust the distance between the first copper terminal 3 and the second copper terminal 5.

[0033] After the distance between the first copper terminal 3 and the second copper terminal 5 is adjusted, the sliding bolt is rotated to press the sliding bolt against the top plate of the base 1 to complete the fixation of the first copper terminal 3 and the second copper terminal 5, ensuring that the first copper terminal 3 and the second copper terminal 5 will not slide during the test, thereby ensuring the accuracy of the test results.

[0034] In some embodiments, threaded holes are provided on one end of the first copper terminal 3 away from the bottom plate 11 and on the adapter 2 , and the adapter 2 is connected to the first copper terminal 3 by connecting bolts 4 .

[0035] The first copper terminal 3 and the adapter 2 are connected by the connecting bolt 4, so that the adapter 2 can be quickly replaced.

[0036] In some embodiments, threaded holes are provided on one end of the second copper terminal 5 away from the bottom plate 11 and on the adapter 2 , and the adapter 2 is connected to the second copper terminal 5 by connecting bolts 4 .

[0037] In some embodiments, a second sliding groove is further provided on the top plate, and the second sliding groove is provided in parallel with the first sliding groove, and the third copper terminal 6 and the fourth copper terminal slide in the second sliding groove.

[0038] The cooperation between the first copper terminal assembly and the second copper terminal assembly enables simultaneous testing of two high-temperature superconducting joints 8 , thereby improving testing efficiency.

[0039] In some embodiments, a third sliding groove is further provided on the top plate, the third sliding groove is provided in parallel with the first sliding groove, and a movable coil base 9 is slidably provided in the third sliding groove.

[0040] In some embodiments, the third slide groove is disposed between the first slide groove and the second slide groove.

[0041] In some embodiments, a winding shaft is disposed on the moving coil base 9 .

[0042] When the high-temperature superconducting test piece is a high-temperature superconducting coil 10, the test tool is placed in a low-temperature medium, the high-temperature superconducting coil 10 is placed on the winding shaft, and the two ends of the high-temperature superconducting coil 10 are respectively welded to the high-temperature superconducting tape 7 in the groove of the first copper terminal 3 and the high-temperature superconducting tape 7 in the groove of the third copper terminal 6. The power supply is connected through the adapter 2 on the first copper terminal 3 and the adapter 2 on the third copper terminal 6 to make the current flow through the high-temperature superconducting coil 10, so that the high-temperature superconducting coil 10 completes the critical performance test of the high-temperature superconducting coil 10 in the low-temperature medium.

[0043] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0044] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A test tool suitable for superconducting materials, characterized in that: include: Base; A first copper terminal assembly, the first copper terminal assembly comprising a first copper terminal and a second copper terminal, the first copper terminal and the second copper terminal being slidably connected to the base respectively, a groove being provided at one end of the first copper terminal and the second copper terminal close to each other, and a high-temperature superconducting tape being connected in each of the grooves; The adapter is respectively provided at one end of the first copper terminal and the second copper terminal which are away from each other, and the adapter is connected to an external power supply.

2. The testing tool suitable for superconducting materials according to claim 1, characterized in that: The base includes a bottom plate, a top plate and a side wall. The bottom plate and the top plate are spaced apart and connected through the side wall. A first sliding groove is provided on the top plate. The first copper terminal and the second copper terminal are slidably connected to the first sliding groove respectively.

3. The testing tool suitable for superconducting materials according to claim 2, characterized in that: A threaded hole is provided at one end of the first copper terminal close to the base plate, a sliding bolt is connected in the threaded hole, a diameter of the nut of the sliding bolt is larger than the width of the sliding groove, and the sliding bolt is used to realize the sliding connection between the first copper terminal and the first sliding groove.

4. The testing tool suitable for superconducting materials according to claim 2, characterized in that: Threaded holes are provided on one end of the first copper terminal away from the bottom plate and on the adapter, and the adapter is connected to the first copper terminal by connecting bolts.

5. The testing tool suitable for superconducting materials according to claim 2, characterized in that: The top plate is also provided with a second sliding groove, which is arranged parallel to the first sliding groove, and a third copper terminal and a fourth copper terminal are slidably arranged in the second sliding groove.

6. The testing tool suitable for superconducting materials according to claim 5, characterized in that: The top plate is also provided with a third sliding groove, which is arranged parallel to the first sliding groove, and a movable coil base is slidably arranged in the third sliding groove.

7. The testing tool suitable for superconducting materials according to claim 6, characterized in that: The third sliding groove is disposed between the first sliding groove and the second sliding groove.

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