Welding device for high-temperature superconducting strip

Abstract

The embodiment of the invention provides a welding device for a high-temperature superconducting tape, which comprises an upper heating piece and a lower heating piece which are used for welding the high-temperature superconducting tape; the clamping assembly is used for installing the upper heating piece and the lower heating piece and can drive the upper heating piece and the lower heating piece to move in the opposite direction or the opposite direction so as to be used for clamping or releasing the high-temperature superconducting strip. The temperature detection assembly is used for detecting the welding temperature of the upper heating piece and / or the lower heating piece; and the control assembly is connected with the temperature detection assembly and used for adjusting the heating power of the upper heating piece and the lower heating piece according to the detected welding temperature. The heating power of the upper heating piece and the heating power of the lower heating piece are adjusted according to the welding temperature detected by the detection assembly, and temperature control is accurate; the clamping assembly is used for clamping or releasing the high-temperature superconducting strip and can ensure that the contact surface is flatly welded so as to apply uniform pressure; according to the device, the welding process of the high-temperature superconducting strip is simplified, the joint welding effect is optimized, the temperature can be accurately controlled, and the strip cannot be damaged.

Description

Technical Field

[0001] This application relates to the technical field of high-temperature superconducting materials, and specifically, to a welding device for high-temperature superconducting tapes. Background Art

[0002] REBCO tapes are the most widely used, most promising, and most commercially developed high-temperature superconducting materials at present, with advantages such as high current density, high critical temperature, and strong magnetic field adaptability. Due to production process limitations, REBCO materials often have a strip structure and a limited single-root length. Therefore, in large-scale applications, multiple tapes often need to be welded in series for use. However, the superconducting thin film inside the REBCO tape is not resistant to high temperatures and is extremely fragile, posing higher requirements for the welding process and device of the REBCO tape.

[0003] During the welding process, a certain pressure needs to be applied to the tape to ensure the flatness and tight contact of the welding part. At the same time, the welding temperature needs to be precisely controlled to improve the welding quality. However, existing welding devices often cannot meet the above requirements simultaneously, causing certain difficulties in the welding of superconducting tapes. Summary of the Invention

[0004] An embodiment of this application provides a welding device for high-temperature superconducting tapes to solve the problems that existing welding devices cannot precisely control the welding temperature and cannot ensure the welding quality.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] A welding device for high-temperature superconducting tapes, comprising:

[0007] An upper heating element and a lower heating element for welding high-temperature superconducting tapes;

[0008] A clamping assembly for installing the upper heating element and the lower heating element, and capable of driving the upper heating element and the lower heating element to move towards or away from each other to clamp or release high-temperature superconducting tapes;

[0009] A temperature detection assembly for detecting the welding temperature of the upper heating element and / or the lower heating element;

[0010] A control assembly connected to the temperature detection assembly for adjusting the heating power of the upper heating element and the lower heating element according to the detected welding temperature.

[0011] Optionally, the clamping assembly includes:

[0012] An upper fixture part and a lower fixture part. One longitudinal end of the upper fixture part and the lower fixture part is provided with a hinge shaft, and the upper fixture part and the lower fixture part are openable and closable via the hinge shaft;

[0013] The upper heating member and the lower heating member are respectively arranged on the inner walls of the opposite sides of the upper clamping portion and the lower clamping portion.

[0014] Optionally, the clamping assembly further includes:

[0015] A first handle portion extending longitudinally away from the upper clamping portion along the hinge axis, and the first handle portion and the upper clamping portion are integrally provided;

[0016] A second handle portion extending longitudinally away from the lower clamping portion along the hinge axis, and the second handle portion and the lower clamping portion are integrally provided;

[0017] The first handle portion and the second handle portion rotate about the hinge axis to drive the upper clamping portion and the lower clamping portion to rotate about the hinge axis.

[0018] Optionally, the upper clamping portion and the lower clamping portion are respectively in damping rotational fit with the hinge axis.

[0019] Optionally, a first rotation hole is provided at the connection between the upper clamping portion and the first handle portion, and the first rotation hole penetrates the upper clamping portion transversely;

[0020] A second rotation hole is provided at the connection between the lower clamping portion and the second handle portion, and the second rotation hole penetrates the lower clamping portion transversely, and the hinge axis passes through the first rotation hole and the second rotation hole.

[0021] Optionally, both the upper heating member and the lower heating member are of plate structure.

[0022] Optionally, the upper heating member and the lower heating member are respectively a metal or ceramic heating member.

[0023] Optionally, the control assembly includes:

[0024] A microprocessor, which is respectively connected to the upper heating member, the lower heating member and the temperature detection assembly;

[0025] A memory, connected to the microprocessor for storing welding data;

[0026] A display unit, connected to the microprocessor for displaying the welding progress and welding parameters.

[0027] Optionally, the temperature detection assembly is a temperature sensor;

[0028] The temperature sensor is fixed to the upper clamping portion, and the probe of the temperature sensor penetrates the upper clamping portion to contact the upper heating plate to detect the welding temperature of the upper heating plate.

[0029] Optionally, it further includes:

[0030] A connecting cable, one end of the connecting cable passes through the first handle and is respectively connected to the temperature detection component, the upper heating element and the lower heating element, and the other end of the connecting cable is connected to the control component.

[0031] A welding device for high-temperature superconducting tapes provided by an embodiment of the present application includes: an upper heating element and a lower heating element for welding high-temperature superconducting tapes; a clamping component for installing the upper heating element and the lower heating element and capable of driving the upper heating element and the lower heating element to move towards or away from each other to clamp or release high-temperature superconducting tapes; a temperature detection component for detecting the welding temperature of the upper heating element and / or the lower heating element; a control component connected to the temperature detection component for adjusting the heating power of the upper heating element and the lower heating element according to the detected welding temperature.

[0032] Using a welding device for high-temperature superconducting tapes provided by an embodiment of the present application, compared with the prior art, it has the following technical effects:

[0033] By setting a temperature detection component to detect the welding temperature of the upper heating element and / or the lower heating element, the heating power of the upper heating element and the lower heating element is adjusted according to the welding temperature detected by the temperature detection component; at the same time, the clamping component realizes the installation of the upper heating element and the lower heating element, and can drive the two to move towards or away from each other to clamp or release the high-temperature superconducting tape, and ensure that the contact surface is flat, realizing uniform and flat welding, and can apply pressure evenly; the above device simplifies the welding process of high-temperature superconducting tapes, optimizes the welding effect of joints, can accurately control the temperature, and will not damage the tape. Description of the Drawings

[0034] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0035] Figure 1 It is a schematic structural diagram of a welding device for high-temperature superconducting tapes provided by an embodiment of the present application;

[0036] Figure 2 It is a schematic structural diagram of the welding device for high-temperature superconducting tapes provided by an embodiment of the present application when it is in an open state;

[0037] Figure 3 It is a schematic structural diagram of the welding device for high-temperature superconducting tapes provided by an embodiment of the present application when it is in a closed state.

[0038] The reference signs in the drawings are as follows:

[0039] Upper heating element 1, lower heating element 2, temperature detection component 3, control component 4, upper fixture part 5, lower fixture part 6, hinge shaft 7, first handle part 8, second handle part 9, connecting cable 10. Specific embodiments

[0040] An embodiment of the present invention discloses a welding device for high-temperature superconducting tapes to solve the problems that existing welding devices cannot accurately control the welding temperature and cannot guarantee the welding quality.

[0041] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the following further details the exemplary embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0042] Please refer to Figures 1-3 , Figure 1 which is a schematic structural diagram of a welding device for high-temperature superconducting tapes provided by an embodiment of the present application; Figure 2 which is a schematic structural diagram of the welding device for high-temperature superconducting tapes provided by an embodiment of the present application when it is in an open state; Figure 3 which is a schematic structural diagram of the welding device for high-temperature superconducting tapes provided by an embodiment of the present application when it is in a closed state.

[0043] In a specific embodiment, the welding device for high-temperature superconducting tapes provided by the present application includes an upper heating element 1, a lower heating element 2, a clamping assembly, a temperature detection component 3, and a control component 4. Among them, the upper heating element 1 and the lower heating element 2 are respectively set as plate structures, so as to ensure a flat contact surface with the superconducting tape and be able to apply uniform force to it; in one embodiment, the upper heating element 1 and the lower heating element 2 can be set as metal or ceramic materials, which are heated evenly, ensuring a stable and uniform welding temperature during the welding of the superconducting tape; at the same time, it is ensured that there is no adhesion with the solder and the welded joint during and after the welding process. The temperature detection component 3 detects the welding temperature of the upper heating element 1 and / or the lower heating element 2, and preferably only detects the welding temperature of the upper heating element 1 to simplify the device structure. The temperature detection component 3 is set as a temperature sensor, and its type is not limited and can be set according to needs.

[0044] The welding temperature detected by the temperature detection component 3 is uploaded to the control component 4, and the control component 4 adjusts the heating power and time of the upper heating element 1 and the lower heating element 2 according to the detected welding temperature to accurately control the welding temperature and improve the welding quality.

[0045] Adopting a welding device for high-temperature superconducting tapes provided in the embodiments of the present application, compared with the prior art, has the following technical effects:

[0046] By providing a temperature detection component 3 to detect the welding temperature of the upper heating element 1 and / or the lower heating element 2, the heating power of the upper heating element 1 and the lower heating element 2 is adjusted according to the welding temperature detected by the temperature detection component 3; at the same time, the clamping component realizes the installation of the upper heating element 1 and the lower heating element 2, and can drive the two to move towards or away from each other to clamp or release the high-temperature superconducting tape, so as to achieve uniform and flat welding, ensure the flatness of the contact surface, and can apply uniform pressure; the above device simplifies the welding process of high-temperature superconducting tapes, optimizes the welding effect of joints, can accurately control the temperature, and will not damage the tape.

[0047] The clamping component includes an upper clamp part 5 and a lower clamp part 6. A hinge shaft 7 is provided at one longitudinal end of the upper clamp part 5 and the lower clamp part 6. The upper clamp part 5 and the lower clamp part 6 are arranged to be openable and closable via the hinge shaft 7; the upper heating element 1 and the lower heating element 2 are respectively arranged on the inner walls on the opposite sides of the upper clamp part 5 and the lower clamp part 6. Specifically, installation grooves are provided on the opposite inner walls of the upper clamp part 5 and the lower clamp part 6, and the upper heating element 1 and the lower heating element 2 are respectively arranged in the corresponding installation grooves for fixation, which can be fixed by clamping, welding or other means. Specifically, a hinge shaft 7 is provided at one longitudinal end of the upper clamp part 5 and the lower clamp part 6, and the upper clamp part 5 and the lower clamp part 6 are hinged via the hinge shaft 7, so that the included angle between the upper clamp part 5 and the lower clamp part 6 is adjustable to achieve openable and closable setting; when the upper clamp part 5 and the lower clamp part 6 are closed around the hinge shaft 7, the upper heating element 1 and the lower heating element 2 can clamp the superconducting tape and can closely fit to apply uniform force to it. At this time, the upper heating element 1 and the lower heating element 2 weld the superconducting tape. Through the setting of the clamping component, it can apply a certain pressure to the superconducting tape, and the upper heating element 1 and the lower heating element 2 ensure the flatness of the welding part and the close contact, improving the welding effect.

[0048] In this embodiment, the upper clamp part 5 and the lower clamp part 6 are arranged with the same structure for easy production and processing; the temperature sensor is preferably arranged on the upper clamp part 5, and the probe of the temperature sensor passes through the wall thickness of the upper clamp part 5 to contact the upper heating element 1 to detect the temperature of the upper heating element 1. At the same time, the upper clamp part 5 and the lower clamp part 6 rotate with damping around the hinge shaft 7 to automatically return to the initial position after the superconducting tape is clamped and welded, and can immediately release the superconducting tape after welding is completed, preventing the residual temperature of the upper heating element 1 and the lower heating element 2 from continuously heating the superconducting tape, which can further accurately control the welding temperature and prevent the superconducting tape from sticking due to too long heating time. Specifically, a torsion spring is sleeved on the hinge shaft 7, one end of the torsion spring abuts against the upper clamp part 5 or the first handle part 8, and the other end of the torsion spring abuts against the lower clamp part 6 or the second handle part 9.

[0049] Furthermore, the clamping assembly also includes a first handle portion 8 and a second handle portion 9, which are used to drive the upper clamp portion 5 and the lower clamp portion 6 to rotate around the hinge shaft 7. The first handle portion 8 and the second handle portion 9 are used to manually clamp the superconducting tape, so as to accurately control the force and time. After welding, the superconducting tape can be released in time to separate it from the heating element, thereby preventing the residual temperature from continuously heating the superconducting tape and improving the welding effect. Specifically, the first handle portion 8 extends through the hinge axis 7 to the longitudinal side away from the upper clamp portion 5, and the second handle portion 9 extends through the hinge axis 7 to the longitudinal side away from the lower clamp portion 6. The upper clamp portion 5 and the first handle portion 8, the lower clamp portion 6 and the second handle portion 9 form an "X"-shaped scissors-fork structure. The hinge axis 7 is arranged at the midpoint of the "X"-shaped scissors-fork structure. The first handle portion 8 and the upper clamp portion 5, the second handle portion 9 and the lower clamp portion 6 are preferably arranged in an integrated manner to facilitate production and processing; further, the first handle portion 8 and the upper clamp portion 5 are preferably arranged symmetrically along the center of the hinge axis 7, and the two have the same structure; similarly, the second handle portion 9 and the lower clamp portion 6 are also arranged symmetrically along the center of the hinge axis 7, and the two have the same structure.

[0050] In this embodiment, a first rotating hole is provided at the connection between the upper clamp part 5 and the first handle part 8, and the first rotating hole passes through the upper clamp part 5 in the horizontal direction; a second rotating hole is provided at the connection between the lower clamp part 6 and the second handle part 9, and the second rotating hole passes through the lower clamp part 6 in the horizontal direction, and the hinge shaft 7 passes through the first rotating hole and the second rotating hole. Preferably, protrusions are provided at both ends of the hinge shaft 7, and the diameter of the protrusions is larger than the diameter of the first rotating hole and the second rotating hole, so as to limit the axial movement of the hinge shaft 7.

[0051] The operator clamps the first handle portion 8 and the second handle portion 9 to rotate them around the hinge shaft 7, thereby driving the upper clamp portion 5 and the lower clamp portion 6 on the other side to rotate around the hinge shaft 7, thereby clamping and releasing the superconducting tape.

[0052] The control component 4 includes a microprocessor, a memory and a display unit; wherein the microprocessor is respectively connected to the upper heating element 1, the lower heating element 2 and the temperature detection component 3, and the specific wiring is that a connecting cable 10 is set on the first handle portion 8, one end of the connecting cable 10 is connected to the temperature detection component 3 on the upper clamp portion 5 through the first handle portion 8, the probe of the temperature detection component 3 is tightly fitted with the upper heating element 1, and the other end of the connecting line is connected to the microprocessor. The microprocessor sends the received data to the memory for storage, and at the same time, the microprocessor processes the temperature signal, and adjusts the working state of the heating element through the connecting cable 10 according to the received temperature information, so as to realize precise control of the temperature during the welding process, and at the same time, the welding progress and welding parameters can be displayed on the lower display unit.

[0053] In a specific embodiment, one end of two high-temperature superconducting tapes is processed and then stacked on the upper heating element 1 and the lower heating element 2. The fixture is closed to manually clamp the high-temperature superconducting tapes to ensure full contact between the superconducting tapes and the upper and lower heating elements 2 and ensure uniform heating. At the same time, through the damping cooperation between the upper fixture part 5 and the lower fixture part 6, uniform pressure is applied to the superconductor to ensure the flatness and tight contact of the welding part. The control component 4 is respectively connected to the temperature sensor, the upper heating element 1 and the lower heating element 2, and adjusts the output power of the upper and lower heating elements 2 according to the welding temperature detected by the temperature sensor to achieve precise control of the temperature during the welding process. Welding parameters such as temperature and heating time can be set through the control component 4. At the same time, the display can display the current temperature information and operation prompt information.

[0054] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A welding device for high-temperature superconducting tapes, characterized in that, Comprising: An upper heating element and a lower heating element for welding high-temperature superconducting tapes; A clamping assembly for mounting the upper heating element and the lower heating element and capable of driving the upper heating element and the lower heating element to move towards or away from each other for clamping or releasing a high-temperature superconducting tape; A temperature detection assembly for detecting the welding temperature of the upper heating element and / or the lower heating element; A control assembly connected to the temperature detection assembly for adjusting the heating power of the upper heating element and the lower heating element according to the detected welding temperature.

2. The welding device for high-temperature superconducting tapes according to claim 1, characterized in that, The clamping assembly includes: An upper clamp part and a lower clamp part, with a hinge shaft provided at one longitudinal end of the upper clamp part and the lower clamp part, and the upper clamp part and the lower clamp part are arranged to be openable and closable via the hinge shaft; The upper heating element and the lower heating element are respectively arranged on the inner walls on opposite sides of the upper clamp part and the lower clamp part.

3. The welding device for high-temperature superconducting tapes according to claim 2, characterized in that, The clamping assembly further includes: A first handle part extending longitudinally away from the upper clamp part via the hinge shaft, and the first handle part and the upper clamp part are integrally provided; A second handle part extending longitudinally away from the lower clamp part via the hinge shaft, and the second handle part and the lower clamp part are integrally provided; The first handle part and the second handle part rotate via the hinge shaft to drive the upper clamp part and the lower clamp part to rotate around the hinge shaft.

4. The welding device for high-temperature superconducting tapes according to claim 2, wherein, The upper clamp part and the lower clamp part are in damping rotational fit with the hinge shaft respectively.

5. The welding device for high-temperature superconducting tapes according to claim 3, wherein A first rotation hole is provided at the connection between the upper clamp part and the first handle part, and the first rotation hole penetrates the upper clamp part transversely; A second rotation hole is provided at the connection between the lower clamp part and the second handle part, and the second rotation hole penetrates the lower clamp part transversely, and the hinge shaft passes through the first rotation hole and the second rotation hole.

6. The welding device for high-temperature superconducting tapes according to claim 1, characterized in that, Both the upper heating element and the lower heating element are of plate structure.

7. The welding device for high-temperature superconducting tapes according to claim 6, characterized in that, The upper heating element and the lower heating element are respectively a metal or ceramic heating element.

8. The welding device for high-temperature superconducting tapes according to any one of claims 1-7, characterized in that, The control assembly includes: A microprocessor, which is respectively connected to the upper heating element, the lower heating element and the temperature detection assembly; A memory connected to the microprocessor for storing welding data; A display unit connected to the microprocessor for displaying the welding progress and welding parameters.

9. The welding device for high-temperature superconducting tapes according to claim 8, characterized in that, The temperature detection assembly is a temperature sensor; The temperature sensor is fixed to the upper clamp part, and the probe of the temperature sensor penetrates the upper clamp part to contact the upper heating plate for detecting the welding temperature of the upper heating plate.

10. The welding device for high-temperature superconducting tapes according to claim 9, characterized in that, It further includes: A connection cable, one end of which passes through the first handle part and is respectively connected to the temperature detection assembly, the upper heating element and the lower heating element, and the other end of the connection cable is connected to the control assembly.

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