Intelligent high-voltage test platform for laminated busbar production

Abstract

The application discloses an intelligent high-voltage test platform for laminated busbar production and relates to the technical field of laminated busbar high-voltage test, which comprises a workbench and a laminated busbar. The upper side of the workbench is provided with a clamping mechanism for clamping and positioning the laminated busbar. Two positioning plates are fixedly connected to the inner wall of the workbench. An industrial camera is used to shoot the laminated busbar upper surface image and compare and identify the image with an internal database in cooperation with a judgment module, so that the system can automatically distinguish whether the current laminated busbar belongs to a large, medium or small type and accurately identify the coordinate positions of the input end and the output end. Thus, the required soft copper wire specification can be automatically determined according to the identification result, and a mechanical hand is controlled to grab a corresponding specification terminal post and insert the terminal post into a busbar terminal. Meanwhile, a corresponding back-shaped plate is driven to slide by cooperating with an electric push rod, so that the automatic magnetic attraction butt joint of a large current generator and the selected soft copper wire is realized.

Description

Technical Field

[0001] This invention relates to the field of high-voltage testing technology for stacked busbars, specifically to an intelligent high-voltage testing bench for the production of stacked busbars. Background Technology

[0002] Laminated busbars, as key conductive components in power electronic equipment, are widely used in high-power converters, electric vehicle controllers, and other applications to achieve electrical connections between power circuits and devices. During the production of laminated busbars, high-voltage overload testing is a core step in verifying their electrical performance and long-term reliability. This primarily involves current carrying capacity testing, which uses a high-current generator to apply the rated current or even higher to the busbar for a period of time to measure the temperature rise under extreme loads.

[0003] The fundamental purpose of conducting high-voltage overload tests on laminated busbars is to ensure their long-term, stable, and safe operation under various harsh conditions. In practical applications, power electronic systems often face instantaneous high-current surges such as motor startup, sudden load changes, and grid fluctuations. If the current carrying capacity of the busbar is insufficient, overheating will accelerate the aging of the insulation material or even cause it to melt.

[0004] However, in existing high-voltage overload testing technology, testers face a prominent operational challenge: due to the significant differences in rated current and peak current among different models and specifications of laminated busbars, the required test current varies. Therefore, soft copper wires with different cross-sectional areas must be selected to connect the high-current generator and the busbar to ensure that the current carrying capacity of the connecting wire itself is sufficient to safely carry the test current and will not overheat or even melt due to being too thin. As a result, whenever a different specification of the busbar under test is changed, the staff needs to manually disassemble the currently connected soft copper wire, select and install another soft copper wire with a matching cross-sectional area. This process is not only cumbersome and time-consuming, which seriously reduces the testing efficiency of mass production, but also the frequent disassembly and assembly can easily lead to wear and poor contact of the terminals, affecting the accuracy and consistency of the test results.

[0005] Therefore, it is necessary to design an intelligent high-voltage test bench that does not require manual disassembly of soft copper wires and automatically matches the corresponding soft copper wires according to different specifications of stacked busbars. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent high-voltage test bench for the production of stacked busbars, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an intelligent high-voltage test bench for the production of stacked busbars, comprising a workbench and stacked busbars. The upper side of the workbench is provided with a clamping mechanism for clamping and positioning the stacked busbars. Two positioning plates are fixedly connected to the inner wall of the workbench. One of the positioning plates is provided with an industrial camera for capturing images of the upper surface of the stacked busbars on its lower side, and the other positioning plate is provided with an infrared imager for detecting the temperature of the surface of the stacked busbars on its lower side. The inner wall of the workbench is provided with a robotic arm for connecting the stacked busbars to the circuits, and a high-voltage overload mechanism is provided on one side of the robotic arm.

[0008] According to the above technical solution, the high voltage overload mechanism includes a support plate fixedly connected to the inner wall of the workbench. A high current generator is fixedly connected to the upper side of the support plate. A line switching component for switching soft copper wires of different cross-sectional areas to connect with stacked busbars of corresponding sizes is provided on one side of the high current generator. A second placement plate is provided on one side of the line switching component, and a first placement plate is provided on one side of the second placement plate. Placement holes are provided on the upper sides of both the first and second placement plates.

[0009] According to the above technical solution, the line switching assembly includes a switching box fixedly connected to one side of the high current generator. An electric push rod is fixedly connected to one side of the switching box, and one end of the electric push rod passes through the switching box. Two clearance slots are provided on one side of the switching box, and an input clearance hole and an output clearance hole are provided on the other side of the switching box. A first sliding groove is provided inside the switching box.

[0010] According to the above technical solution, the inside of the switching box is slidably connected with a first circular plate, a second circular plate, and a third circular plate. The first circular plate, the second circular plate, and the third circular plate are provided with second sliding grooves on both sides. The first circular plate, the second circular plate, and the third circular plate are provided with first through holes and second through holes on both sides. A first sliding column is slidably connected inside each second sliding groove.

[0011] According to the above technical solution, a fixing block is fixedly connected in the middle of the inner wall of the first spiral plate, and a first connecting rod and a second connecting rod are provided between the first spiral plate and the second spiral plate. The first connecting rod and the second connecting rod are hinged to each other. One end of the first connecting rod and the second connecting rod are fixedly connected to the first sliding column of the first spiral plate, and the other end of the first connecting rod and the second connecting rod are fixedly connected to one of the first sliding columns of the second spiral plate.

[0012] According to the above technical solution, a third link and a fourth link are provided between the second loop plate and the third loop plate. The third link and the fourth link are hinged to each other. One end of the third link and the fourth link is fixedly connected to another first sliding column of the second loop plate, and the other end of the third link and the fourth link is fixedly connected to one of the first sliding columns of the third loop plate. A fifth link and a sixth link are provided on the other side of the third loop plate.

[0013] According to the above technical solution, the fifth link and the sixth link are hinged to each other, one end of the fifth link and the sixth link are fixedly connected to another first sliding column of the third loop plate, and the other end of the fifth link and the sixth link are fixedly connected to a second sliding column, and the two ends of the second sliding column are slidably connected to the inside of the first sliding groove.

[0014] According to the above technical solution, a small-section soft copper wire passes through the first through hole of the first loop plate, a medium-section soft copper wire passes through the first through hole of the second loop plate, and a large-section soft copper wire passes through the first through hole of the third loop plate. One end of the small-section soft copper wire, the medium-section soft copper wire, and the large-section soft copper wire abuts against the inner wall of the switching box, and the other end of the small-section soft copper wire, the medium-section soft copper wire, and the large-section soft copper wire are all fixedly connected to a terminal block, which is inserted into the placement hole.

[0015] According to the above technical solution, the clamping mechanism includes a base plate fixedly connected to the upper side of the workbench, a cylinder fixedly connected to the upper side of the base plate, a slider fixedly connected to the output end of the cylinder, a slide rail slidably connected to the lower side of the slider and the slide rail fixedly connected to the base plate, a first clamping block provided on one side of the slide rail and the first clamping block fixedly connected to the base plate, and a second clamping block fixedly connected to the upper side of the slider.

[0016] According to the above technical solution, a number of support legs are evenly and fixedly connected to the lower side of the workbench, and two drawers are slidably connected inside the workbench.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. By capturing images of the upper surface of the stacked busbar using an industrial camera and comparing them with an internal database using a judgment module, the system can automatically identify whether the current stacked busbar is large, medium, or small, and accurately identify the coordinates of its input and output terminals. Based on the identification results, it automatically determines the required soft copper wire specification (50mm², 185mm², or 300mm²), and then controls a robotic arm to grasp the corresponding specification terminal and insert it into the busbar terminal. Simultaneously, an electric push rod drives the corresponding sliding plate to achieve automatic magnetic connection between the high current generator and the selected soft copper wire. This achieves full automation of the high-voltage overload test of the stacked busbar, eliminating the need for manual replacement of the soft copper wire. It effectively avoids test errors and safety hazards caused by human factors such as visual judgment errors in selecting the wrong wire diameter when manually identifying the busbar specification, tedious and time-consuming manual replacement of soft copper wire, and inaccurate alignment or poor contact when manually inserting terminals.

[0018] 2. Through the three-stage telescopic control of the output end of the electric push rod in the line switching component, the first, second, and third loop plates slide sequentially to the side of the high-current generator. This allows the male end of the high-current generator connector to automatically complete the adsorption alignment and electrical connection with the female ends of connectors for different cross-section soft copper wires (50mm², 185mm², and 300mm²) via magnetic self-connecting connectors. This achieves intelligent switching based on the busbar size identified by the judgment module, automatically matching the corresponding specification of soft copper wire. Consequently, the system can quickly switch between three test currents of 250A, 630A, and 1000A without manual disassembly and assembly of any soft copper wire. This significantly improves batch testing efficiency, reduces labor costs, and minimizes downtime for wire replacement. It effectively avoids management problems such as mechanical wear of terminals and chaotic storage, misuse, and incorrect use of multiple specifications of cables caused by frequent manual disassembly and assembly of soft copper wires. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an intelligent high-voltage test bench for the production of stacked busbars according to the present invention. Figure 2 This is a schematic diagram of the clamping mechanism in this invention; Figure 3 This is a schematic diagram of the high-voltage overload mechanism in this invention; Figure 4 This is a schematic diagram of the structure of the first placement plate and the second placement plate in this invention; Figure 5 This is a schematic diagram showing the positions of the switching box and the electric push rod in this invention; Figure 6 This is a schematic diagram of the internal structure of the switching box in this invention; Figure 7 This is a schematic diagram showing the positions of the small-section soft copper wire, the medium-section soft copper wire, and the large-section soft copper wire in this invention. Figure 8 This is a schematic diagram of the line switching component in this invention; In the diagram: 1. Workbench; 2. Infrared imager; 3. Clamping mechanism; 31. Base plate; 32. Slide rail; 33. Slider; 34. Cylinder; 35. First clamping block; 36. Second clamping block; 37. Stacked busbar; 4. Support legs; 5. Drawer; 6. High-voltage overload mechanism; 61. High-current generator; 62. Support plate; 63. Line switching assembly; 631. Electric push rod; 632. Switching box; 6321. Clearance groove; 6322. First slide groove; 6323. Input clearance hole; 6324. Output clearance hole; 633. Small cross-section soft copper wire; 634. Medium cross-section soft copper wire; 635. Large cross-section soft copper wire; 636. Terminal block; 637. First loop plate; 6371. First slide groove Column; 6372, First connecting rod; 6373, First through hole; 6374, Second connecting rod; 6375, Second through hole; 6376, Second sliding groove; 6377, Fixing block; 638, Second loop plate; 6381, Third connecting rod; 6382, Fourth connecting rod; 639, Third loop plate; 6391, Fifth connecting rod; 6392, Sixth connecting rod; 6393, Second sliding column; 64, First placement plate; 65, Second placement plate; 66, Placement hole; 7. Robotic arm; 8. Positioning plate; 9. Industrial camera. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-8The present invention provides a technical solution: an intelligent high-voltage test bench for the production of stacked busbars, including a workbench 1 and a stacked busbar 37. The upper side of the workbench 1 is provided with a clamping mechanism 3 for clamping and positioning the stacked busbar 37. Two positioning plates 8 are fixedly connected to the inner wall of the workbench 1. One positioning plate 8 is provided with an industrial camera 9 for taking pictures of the upper surface of the stacked busbar 37 on its lower side. The other positioning plate 8 is provided with an infrared imager 2 for detecting the temperature of the surface of the stacked busbar 37 on its lower side. The inner wall of the workbench 1 is provided with a robot arm 7 for connecting the stacked busbar 37 to the circuit. A high-voltage overload mechanism 6 is provided on one side of the robot arm 7.

[0022] The specific explanation based on the above structure is as follows: The internal structure of the robot arm 7 is an electromechanical closed-loop system that integrates the actuator, drive system, control system and sensing system. Its actuator is a kinematic chain composed of multiple joints connected in series. Each joint has a built-in servo motor and a harmonic reducer or RV reducer. The servo motor outputs torque according to the pulse width modulation signal issued by the control system. After being amplified by the reducer, it drives each link to achieve precise rotation or linear displacement, thereby giving the robot arm 7 multi-degree-of-freedom motion capability. The control system is the core. Based on the kinematic model, it plans a collision-free trajectory in real time and sends position, speed and acceleration commands to each joint servo driver in millisecond cycles through industrial Ethernet. At the same time, it receives encoder feedback signals from the current loop, speed loop and position loop to form a high-bandwidth closed-loop control to ensure positioning accuracy and dynamic response. The end effector of the robot arm 7 is usually equipped with a force sensor. The force sensor detects contact force based on the strain gauge bridge principle and realizes compliant control.

[0023] Industrial camera 9 is used to image the upper surface of the stacked busbar 37. The temperature measurement principle of infrared imager 2 is based on the Stefan-Boltzmann law and Planck's blackbody radiation law, that is, all objects with a temperature above absolute zero will continuously emit infrared radiation of a specific wavelength, and the radiation energy is proportional to the fourth power of the object's surface temperature. The thermal imager uses a specially designed infrared optical lens to focus the infrared radiation emitted by the target onto the infrared detector chip. Each tiny pixel unit on the detector converts the received thermal radiation into a weak electrical signal. After amplification, analog-to-digital conversion, and a series of complex radiation calibration algorithms by the built-in digital signal processor, combined with the ambient temperature compensation parameters, target emissivity setting value, and target distance correction factors stored in the instrument, the electrical signal intensity of each pixel is accurately mapped to the corresponding temperature value. Finally, the temperature data of all pixels are arranged into a two-dimensional pseudo-color thermal image, where different colors represent different temperature levels, thereby realizing non-contact real-time measurement of the surface temperature field of the stacked busbar 37.

[0024] The high-voltage overload mechanism 6 includes a support plate 62 fixedly connected to the inner wall of the workbench 1. A high-current generator 61 is fixedly connected to the upper side of the support plate 62. A line switching component 63 for switching soft copper wires of different cross-sectional areas to connect with stacked busbars 37 of corresponding sizes is provided on one side of the high-current generator 61. A second placement plate 65 is provided on one side of the line switching component 63. A first placement plate 64 is provided on one side of the second placement plate 65. Placement holes 66 are provided on the upper sides of both the first placement plate 64 and the second placement plate 65.

[0025] The specific explanation based on the above structure is as follows: The core principle of the high current generator 61 is based on the law of electromagnetic induction. Essentially, it is a step-down transformer that reduces the input voltage and amplifies the current in reverse. Its operation follows the principle of power conservation. By adjusting the input voltage through a voltage regulator, the magnitude of the output current is controlled. It converts high-voltage, low-current electrical energy into low-voltage, high-current output of thousands or even tens of thousands of amperes, thereby meeting the overload testing requirements of power equipment such as the laminated busbar 37. When the small-section soft copper wire 633, medium-section soft copper wire 634, and large-section soft copper wire 635 are not in use, they are used to insert the corresponding terminal 636 of each line into the placement hole 66.

[0026] The line switching assembly 63 includes a switching box 632 fixedly connected to one side of the high current generator 61. An electric push rod 631 is fixedly connected to one side of the switching box 632, and one end of the electric push rod 631 passes through the switching box 632. Two clearance grooves 6321 are provided on one side of the switching box 632. An input clearance hole 6323 and an output clearance hole 6324 are provided on the other side of the switching box 632. A first sliding groove 6322 is provided inside the switching box 632.

[0027] The switching box 632 has a first circular plate 637, a second circular plate 638, and a third circular plate 639 slidably connected inside. The first circular plate 637, the second circular plate 638, and the third circular plate 639 are provided with second sliding grooves 6376 on both sides. The first circular plate 637, the second circular plate 638, and the third circular plate 639 are provided with first through holes 6373 and second through holes 6375 on both sides. The first sliding column 6371 is slidably connected inside each second sliding groove 6376.

[0028] A fixing block 6377 is fixedly connected to the middle of the inner wall of the first circular plate 637. A first connecting rod 6372 and a second connecting rod 6374 are provided between the first circular plate 637 and the second circular plate 638. The first connecting rod 6372 and the second connecting rod 6374 are hinged to each other. One end of the first connecting rod 6372 and the second connecting rod 6374 is fixedly connected to the first sliding post 6371 of the first circular plate 637, and the other end of the first connecting rod 6372 and the second connecting rod 6374 is fixedly connected to one of the first sliding posts 6371 of the second circular plate 638.

[0029] A third link 6381 and a fourth link 6382 are provided between the second loop plate 638 and the third loop plate 639. The third link 6381 and the fourth link 6382 are hinged to each other. One end of the third link 6381 and the fourth link 6382 is fixedly connected to another first sliding post 6371 of the second loop plate 638, and the other end of the third link 6381 and the fourth link 6382 is fixedly connected to one of the first sliding posts 6371 of the third loop plate 639. A fifth link 6391 and a sixth link 6392 are provided on the other side of the third loop plate 639.

[0030] The fifth link 6391 and the sixth link 6392 are hinged to each other. One end of the fifth link 6391 and the sixth link 6392 is fixedly connected to another first sliding post 6371 of the third loop plate 639. The other end of the fifth link 6391 and the sixth link 6392 are both fixedly connected to a second sliding post 6393. The two ends of the second sliding post 6393 are slidably connected inside the first sliding groove 6322.

[0031] A small-section soft copper wire 633 passes through the first through hole 6373 of the first loop plate 637. A medium-section soft copper wire 634 passes through the first through hole 6373 of the second loop plate 638. A large-section soft copper wire 635 passes through the first through hole 6373 of the third loop plate 639. One end of the small-section soft copper wire 633, the medium-section soft copper wire 634, and the large-section soft copper wire 635 abuts against the inner wall of the switching box 632. The other end of the small-section soft copper wire 633, the medium-section soft copper wire 634, and the large-section soft copper wire 635 are all fixedly connected to a terminal block 636. The terminal block 636 is inserted into the placement hole 66.

[0032] The output end of the electric push rod 631 is fixedly connected to the fixed block 6377.

[0033] The specific description of the above structure is as follows: the cross-sectional area of ​​the small cross-section soft copper wire 633 is 50mm², which is suitable for testing small busbars with a current of 250A; the cross-sectional area of ​​the medium cross-section soft copper wire 634 is 185mm², which is suitable for testing medium busbars with a current of 630A; and the cross-sectional area of ​​the large cross-section soft copper wire 635 is 300mm², which is suitable for testing large busbars with a current of 1000A. The terminals 636 of the small cross-section soft copper wire 633, the medium cross-section soft copper wire 634, and the large cross-section soft copper wire 635 are respectively matched with the input and output terminals of their corresponding stacked busbars 37. The switching box 632, the first loop plate 637, the second loop plate 638, and the third loop plate 639 are made of insulating material.

[0034] The input and output terminals of the high current generator 61, as well as one end of each small cross-section soft copper wire 633, medium cross-section soft copper wire 634, and large cross-section soft copper wire 635, are fixedly connected to magnetic self-connecting connectors. When the male end of the connector of the high current generator 61 approaches the female end of one of the soft copper wire connectors into the magnetic field, the built-in permanent magnet will generate directional attraction, automatically guiding the two to complete coarse positioning and precise alignment. At the same time, the magnetic pole arrangement ensures that the contact terminals fit in the correct posture, thereby establishing a reliable electrical connection. When disconnection is required, an external force exceeding the magnetic threshold is applied in a specific direction, and the connector will disengage instantly.

[0035] The extension and retraction of the output end of the electric push rod 631 is used to control the expansion or contraction of the first loop plate 637, the second loop plate 638, and the third loop plate 639. When the electric push rod 631 extends, it pushes the first loop plate 637 to slide along the inner wall of the switching box 632. The first loop plate 637 indirectly drives the second loop plate 638 to slide along the inner wall of the switching box 632 through the first connecting rod 6372 and the second connecting rod 6374. The second loop plate 638 drives the third loop plate 639 to slide along the inner wall of the switching box 632 through the third connecting rod 6381 and the fourth connecting rod 6382. At the same time as the first connecting rod 6372 and the second connecting rod 6374 open in a cross manner, and the third connecting rod 6381 and the fourth connecting rod 6382 open in a cross manner, the first sliding column 6371 slides along the second sliding groove 6376.

[0036] When the output end of the electric push rod 631 is fully retracted, the first loop plate 637 slides to the side of the input and output ends of the high current generator 61. The two male ends of the connector of the high current generator 61 are magnetically attracted to the female ends of the connectors of the two small cross-section soft copper wires 633 through permanent magnets, thus completing automatic docking. When the output end of the electric push rod 631 extends by half, the second loop plate 638 slides to the side of the input and output ends of the high current generator 61. The two male ends of the connector of the high current generator 61 are magnetically attracted to the female ends of the connectors of the two medium cross-section soft copper wires 634 through permanent magnets, thus completing automatic docking. When the output end of the electric push rod 631 is fully extended, the third loop plate 639 slides to the side of the input and output ends of the high current generator 61. The two male ends of the connector of the high current generator 61 are magnetically attracted to the female ends of the connectors of the two large cross-section soft copper wires 635 through permanent magnets, thus completing automatic docking.

[0037] The clamping mechanism 3 includes a base plate 31 fixedly connected to the upper side of the workbench 1. A cylinder 34 is fixedly connected to the upper side of the base plate 31. A slider 33 is fixedly connected to the output end of the cylinder 34. A slide rail 32 is slidably connected to the lower side of the slider 33 and is fixedly connected to the base plate 31. A first clamping block 35 is provided on one side of the slide rail 32 and is fixedly connected to the base plate 31. A second clamping block 36 is fixedly connected to the upper side of the slider 33.

[0038] Several support legs 4 are evenly fixedly connected to the lower side of the workbench 1, and two drawers 5 are slidably connected inside the workbench 1.

[0039] The specific description of the above structure is as follows: the first clamping block 35 and the second clamping block 36 are used to place the stacked busbar 37. When the output end of the cylinder 34 extends, the second clamping block 36 is driven to slide along the slide rail 32 and approach the first clamping block 35, thereby completing the clamping of the stacked busbar 37.

[0040] The industrial camera 9 contains a database and a judgment module. The database contains recognition photos of stacked busbars 37 of different sizes and their input and output terminals at different positions. After the industrial camera 9 captures an image of the stacked busbar 37 directly below it, it converts the image into an electrical signal and sends it to the judgment module. The judgment module first compares the image with the recognition photos of the stacked busbar 37 at different positions in the internal database to pre-identify the positions of the current input and output terminals of the stacked busbar 37. The system immediately generates a set of precise coordinate data and sends it to the robot controller in real time via industrial Ethernet. Based on this coordinate information, the robot 7 first calculates a collision-free optimal motion trajectory using a path planning algorithm, and then drives its multi-joint arm to move along the trajectory. When the robot 7 moves to the position of the corresponding soft copper wire terminal 636, it first completes the gripping action of the soft copper wire terminal 636, and then, based on the current input and output terminal coordinate data of the stacked busbar 37, aligns the two terminals 636 with the input and output terminals of the current stacked busbar 37 respectively, and inserts them vertically in a compliant manner.

[0041] The judgment module will then compare the image of the stacked busbar 37 with the recognition photos of stacked busbars 37 of different sizes in the internal database, pre-identify the size of the current stacked busbar 37, and classify the size of the stacked busbar 37 into large stacked busbars, medium stacked busbars and small stacked busbars based on the obtained photos of the stacked busbar 37.

[0042] When the industrial camera 9 captures an area of ​​4000 mm² - 16000 mm² on the upper surface of the stacked busbar 37, the judgment module determines that it is a small stacked busbar, requiring the use of small cross-section soft copper wire 633 and a high-voltage overload test with a current of 250A. The output end of the electric push rod 631 is fully retracted, and the first loop plate 637 slides to the input and output sides of the high-current generator 61. The two male terminals of the connector of the high-current generator 61 are magnetically attracted to the female terminals of the connectors of the two small cross-section soft copper wires 633 through permanent magnets, thereby completing the automatic docking. The robot arm 7 places the terminals 636 of the two small cross-section soft copper wires 633 onto the input and output ends of the small stacked busbar, respectively. The input end of the high-current generator 61 emits a current of 250A to perform a high-voltage overload test on the small stacked busbar. The infrared imager 2 detects the temperature rise on the upper surface of the small stacked busbar in real time, thereby completing the high-voltage overload test on the small stacked busbar.

[0043] When the industrial camera 9 captures an image of the upper surface area of ​​the stacked busbar 37 within the range of 16000mm² - 90000mm², the judgment module determines that it is a medium-sized stacked busbar, requiring the use of medium-section soft copper wire 634 and a high-voltage overload test with a current of 630A. The output end of the electric push rod 631 extends by half, and the second loop plate 638 slides to one side of the input and output ends of the high-current generator 61. The two male ends of the connector of the high-current generator 61 are magnetically attracted to the female ends of the connectors of the two medium-section soft copper wires 634 through permanent magnets, thereby completing the automatic docking. The robot arm 7 places the terminals 636 of the two medium-section soft copper wires 634 onto the input and output ends of the medium-sized stacked busbar, respectively. The input end of the high-current generator 61 emits a current of 630A to perform a high-voltage overload test on the medium-sized stacked busbar. The infrared imager 2 detects the temperature rise on the upper surface of the medium-sized stacked busbar in real time, thereby completing the high-voltage overload test of the medium-sized stacked busbar.

[0044] When the industrial camera 9 captures an image of the upper surface area of ​​the stacked busbar 37 within the range of 90,000 mm² - 200,000 mm², the judgment module determines that it is a large stacked busbar, requiring the use of large-section soft copper wire 635 and a high-voltage overload test with a current of 1000A. The output end of the electric push rod 631 extends fully, and the third loop plate 639 slides to the input and output sides of the high-current generator 61. The two male terminals of the high-current generator 61 connector are magnetically attracted to the female terminals of the two large-section soft copper wire 635 connectors through permanent magnets, thus completing the automatic docking. The robot arm 7 places the terminals 636 of the two large-section soft copper wire 635 onto the input and output ends of the large stacked busbar, respectively. The input end of the high-current generator 61 emits a current of 630A to perform a high-voltage overload test on the large stacked busbar. The infrared imager 2 detects the temperature rise on the upper surface of the large stacked busbar in real time, thus completing the high-voltage overload test of the large stacked busbar.

[0045] When the high-voltage overload test of the stacked busbar 37 is completed, the output current of the high current generator 61 is turned off, and the system will control the robot arm 7 again to put the two terminals 636 of the soft copper wire back into the corresponding placement hole 66 in the reverse path.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart high-voltage test bench for the production of laminated busbars, comprising a workbench (1) and laminated busbars (37), characterized in that, The upper side of the workbench (1) is provided with a clamping mechanism (3) for clamping and positioning the stacked busbar (37). The inner wall of the workbench (1) is fixedly connected with two positioning plates (8). The lower side of one of the positioning plates (8) is provided with an industrial camera (9) for taking pictures of the upper surface of the stacked busbar (37). The lower side of the other positioning plate (8) is provided with an infrared imager (2) for detecting the temperature of the surface of the stacked busbar (37). The inner wall of the workbench (1) is provided with a robot arm (7) for connecting the stacked busbar (37) to the circuit. One side of the robot arm (7) is provided with a high voltage overload mechanism (6). The high voltage overload mechanism (6) includes a support plate (62) fixedly connected to the inner wall of the workbench (1). A high current generator (61) is fixedly connected to the upper side of the support plate (62). A line switching component (63) for switching soft copper wires with different cross-sectional areas to connect with stacked busbars (37) of corresponding sizes is provided on one side of the high current generator (61). The line switching assembly (63) includes a small cross-section soft copper wire (633), a medium cross-section soft copper wire (634), a large cross-section soft copper wire (635), and a switching box (632) fixedly connected to one side of the high current generator (61). An electric push rod (631) is fixedly connected to one side of the switching box (632), and one end of the electric push rod (631) passes through the switching box (632). The switching box (632) is provided with a first sliding groove (6322) inside. The switching box (632) has a first spiral plate (637), a second spiral plate (638), and a third spiral plate (639) slidably connected inside. The first spiral plate (637), the second spiral plate (638), and the third spiral plate (639) are provided with second sliding grooves (6376) on both sides. The first spiral plate (637), the second spiral plate (638), and the third spiral plate (639) are provided with first through holes (6373) and second through holes (6375) on both sides. Each second sliding groove (6376) is slidably connected with a first sliding column (6371). A fixing block (6377) is fixedly connected to the middle of the inner wall of the first circular plate (637). A first connecting rod (6372) and a second connecting rod (6374) are provided between the first circular plate (637) and the second circular plate (638). The first connecting rod (6372) and the second connecting rod (6374) are hinged to each other. One end of the first connecting rod (6372) and the second connecting rod (6374) are fixedly connected to the first sliding column (6371) of the first circular plate (637), and the other end of the first connecting rod (6372) and the second connecting rod (6374) are fixedly connected to one of the first sliding columns (6371) of the second circular plate (638). A third link (6381) and a fourth link (6382) are provided between the second loop plate (638) and the third loop plate (639). The third link (6381) and the fourth link (6382) are hinged to each other. One end of the third link (6381) and the fourth link (6382) is fixedly connected to another first slide post (6371) of the second loop plate (638), and the other end of the third link (6381) and the fourth link (6382) is fixedly connected to one of the first slide posts (6371) of the third loop plate (639). A fifth link (6391) and a sixth link (6392) are provided on the other side of the third loop plate (639). The fifth link (6391) and the sixth link (6392) are hinged to each other. One end of the fifth link (6391) and the sixth link (6392) is fixedly connected to another first sliding column (6371) of the third loop plate (639). The other end of the fifth link (6391) and the sixth link (6392) are both fixedly connected to a second sliding column (6393). The two ends of the second sliding column (6393) are slidably connected inside the first sliding groove (6322). The input and output terminals of the high current generator 61, as well as one end of each small-section soft copper wire 633, medium-section soft copper wire 634, and large-section soft copper wire 635, are all fixedly connected to magnetic self-connecting connectors.

2. The intelligent high-voltage test bench for the production of laminated busbars according to claim 1, characterized in that, The small-section soft copper wire (633) passes through the first through hole (6373) of the first spiral plate (637), the medium-section soft copper wire (634) passes through the first through hole (6373) of the second spiral plate (638), and the large-section soft copper wire (635) passes through the first through hole (6373) of the third spiral plate (639).

3. The intelligent high-voltage test bench for the production of laminated busbars according to claim 1, characterized in that, The line switching assembly (63) has a second placement plate (65) on one side, and a first placement plate (64) on one side of the second placement plate (65). The upper sides of the first placement plate (64) and the second placement plate (65) are both provided with placement holes (66).

4. The intelligent high-voltage test bench for the production of laminated busbars according to claim 3, characterized in that, One end of the small-section soft copper wire (633), medium-section soft copper wire (634), and large-section soft copper wire (635) abuts against the inner wall of the switching box (632), and the other end of the small-section soft copper wire (633), medium-section soft copper wire (634), and large-section soft copper wire (635) is fixedly connected to a terminal (636), which is inserted into the placement hole (66).

5. The intelligent high-voltage test bench for the production of laminated busbars according to claim 1, characterized in that, The clamping mechanism (3) includes a base plate (31) fixedly connected to the upper side of the workbench (1), a cylinder (34) fixedly connected to the upper side of the base plate (31), a slider (33) fixedly connected to the output end of the cylinder (34), a slide rail (32) slidably connected to the lower side of the slider (33) and the slide rail (32) fixedly connected to the base plate (31), a first clamping block (35) is provided on one side of the slide rail (32) and the first clamping block (35) is fixedly connected to the base plate (31), and a second clamping block (36) is fixedly connected to the upper side of the slider (33).

6. The intelligent high-voltage test bench for the production of laminated busbars according to claim 1, characterized in that, The workbench (1) has several support legs (4) evenly fixedly connected to its lower side, and two drawers (5) are slidably connected inside the workbench (1).

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