Bus bar welding and bending equipment

Abstract

The utility model relates to bus bar welding and bending equipment. The bus bar welding and bending equipment comprises a first support, a pressing mechanism, a welding mechanism and a bending mechanism. The pressing mechanism and the welding mechanism are both located on one side of the first support in the extension direction of the bus bar, and the bending mechanism is located on the other side of the first support. Welding and fixing of the bus bar and a welding strip can be achieved, bending treatment of the tail end of the bus bar can be achieved, namely, the welding function and the bending function of the bus bar are integrated, and the automation degree is high; besides, the pressing mechanism and the welding mechanism are arranged on one side of the first support, and the bending mechanism is arranged on the other side of the first support, so that the bending mechanism cannot interfere with the pressing mechanism, the pressing mechanism, the welding mechanism and the bending mechanism can be integrated on the first support, the structure is compact, and the occupied space is small; in addition, the distance between the welding position and the bending position is small, the transfer time can be shortened, and the production efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of solar cell production, and in particular to a busbar welding and bending device. Background Art

[0002] With the rapid development and advancement of photovoltaic technology, photovoltaic power generation plays an increasingly important role in the power supply system. Photovoltaic modules are a key component of photovoltaic power generation equipment. During the photovoltaic module production process, after multiple cells are welded in series to form a battery string, these strings need to be connected using busbars to form a battery array, and then the busbars need to be bent.

[0003] In related technologies, with the gradual improvement of automation, welding devices that can automatically weld battery strings and busbars, as well as bending devices that can automatically bend busbars, are increasingly being used. Generally speaking, the welding and bending devices are independently located at different positions, such as along the length of the welding strip. However, the separate arrangement of the welding and bending devices not only occupies a large space, but also consumes a considerable amount of time to transfer the battery strings and busbars from the welding position to the bending position, resulting in low production efficiency. Utility Model Content

[0004] Based on this, it is necessary to overcome the defects of the existing technology and provide a busbar welding and bending equipment, which can make the structure compact, occupy a small space, and improve production efficiency.

[0005] A busbar welding and bending device, comprising:

[0006] Workbench;

[0007] a first bracket, the first bracket being arranged on the workbench;

[0008] A pressing mechanism, the pressing mechanism being mounted on the first bracket and being used to press the welding ribbon to be welded onto the busbar;

[0009] a welding mechanism, the welding mechanism being mounted on the first bracket and being used to weld and fix the welding strip to the bus bar; and

[0010] A bending mechanism is installed on the first bracket, and is used to bend and flatten the upward-turned tail end of the busbar. The clamping mechanism and the welding mechanism are both located on one side of the first bracket along the extension direction of the busbar, and the bending mechanism is located on the other side.

[0011] In one embodiment, the clamping mechanism includes a first lifting mechanism, a beam and a plurality of second brackets; the first lifting mechanism is installed on the first bracket, the first lifting mechanism is connected to the beam, and the first lifting mechanism is used to drive the lifting action of the beam; the extension direction of the beam is parallel to the extension direction of the bus bar, and all the second brackets are arranged in sequence along the extension direction of the beam, and each second bracket is arranged corresponding to each battery string of the photovoltaic module; each second bracket is provided with a plurality of clamping members arranged in sequence along the extension direction parallel to the beam, and each clamping member is pressed against each welding strip to make the welding strip close to the bus bar.

[0012] In one embodiment, the clamping mechanism also includes a plurality of first movable mechanisms sequentially arranged on the beam along the extension direction of the beam, each of the first movable mechanisms is correspondingly connected to each of the second brackets, and the first movable mechanisms are used to drive the second brackets to move along the extension direction of the beam.

[0013] In one embodiment, the pressing member includes a pressing block, an elastic buffer and a pressing member, the pressing block is connected to the second bracket, the pressing member is connected to the pressing block through the elastic buffer, and the pressing member is used to press and cooperate with the welding strip so that the welding strip is pressed against the bus bar; the welding mechanism is a laser welding device, and the pressing member is provided with an avoidance opening for avoiding the laser beam of the welding mechanism.

[0014] In one embodiment, there are multiple welding mechanisms, and the busbar welding and bending equipment also includes multiple second moving mechanisms arranged on the first bracket, each of the second moving mechanisms is correspondingly connected to each of the welding mechanisms, and the second moving mechanism is used to drive the welding mechanism to move along an extension direction parallel to the busbar.

[0015] In one embodiment, the bending mechanism includes a second lifting mechanism, a lateral pushing mechanism and a pushing member arranged on the first bracket, the lateral pushing mechanism is connected to the second lifting mechanism, and the pushing member is connected to the lateral pushing mechanism. The second lifting mechanism is used to drive the lateral pushing mechanism to lift and lower, and the lateral pushing mechanism is used to drive the pushing member to move along an extension direction parallel to the bus bar. The pushing member and the tail end of the bus bar abut against each other and can drive the tail end to bend.

[0016] In one embodiment, the busbar welding and bending equipment further includes a third moving mechanism disposed on the first bracket, the third moving mechanism being connected to the second lifting mechanism, and the third moving mechanism being used to drive the second lifting mechanism to move along an extension direction parallel to the busbar.

[0017] In one embodiment, the busbar welding and bending equipment also includes a camera and a controller; the camera is arranged on the first bracket, and the camera is used to obtain images of the busbar and the welding strip, and the camera, the clamping mechanism, the welding mechanism and the bending mechanism are all electrically connected to the controller; the controller is used to determine the positions of the busbar and the welding strip according to the image, and control the operation of the clamping mechanism, the welding mechanism and the bending mechanism according to the positions of the busbar and the welding strip.

[0018] In one embodiment, the busbar welding and bending equipment further includes a fourth moving mechanism disposed on the workbench; the fourth moving mechanism is connected to the first bracket, and the fourth moving mechanism is used to drive the first bracket to move along the extension direction of the welding strip.

[0019] In one embodiment, the welding mechanism includes a laser welding device, an electromagnetic welding device, a hot air welding device or an electric soldering iron welding device.

[0020] The above-mentioned busbar welding and bending equipment, when working, adjusts the relative position of the clamping mechanism and the busbar so that it is aligned with the busbar in the vertical direction, and the welding strip to be welded is pressed against the busbar by the clamping mechanism, and then the welding strip and the busbar are welded and fixed by the welding mechanism; after completing the welding connection between the welding strip and the busbar, adjusts the relative position of the bending mechanism and the busbar so that it is aligned with the busbar in the vertical direction, and the upward-turned tail end of the busbar is bent and flattened by the bending mechanism. It can be seen that the bus bar and the welding strip can be welded and fixed, and the tail end of the bus bar can be bent, that is, the welding function and the bending function of the bus bar are integrated, and the degree of automation is relatively high; in addition, the clamping mechanism and the welding mechanism are arranged on one side of the first bracket, and the bending mechanism is arranged on the other side of the first bracket. In this way, the bending mechanism will not interfere with the clamping mechanism, so that the clamping mechanism, the welding mechanism and the bending mechanism can be integrated on the first bracket, with a compact structure and small space occupation; in addition, the distance between the welding position and the bending position is small, which can reduce the transfer time and has higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram from one perspective of a busbar welding and bending device according to an embodiment of the present application.

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A.

[0023] Figure 3 for Figure 1 Another perspective structural diagram of the busbar welding and bending equipment.

[0024] Figure 4 for Figure 1 Structural diagram of the clamping mechanism in the busbar welding and bending equipment clamping the welding ribbon and busbar.

[0025] Figure 5 for Figure 1 Another perspective structural diagram of the busbar welding and bending equipment.

[0026] Figure 6 for Figure 5 Enlarged structural diagram at B.

[0027] Figure 7 for Figure 6 Exploded structure diagram of the clamping parts in .

[0028] Figure 8 for Figure 1 Another perspective structural diagram of the busbar welding and bending equipment.

[0029] Figure 9 for Figure 8 Enlarged structural diagram at C.

[0030] 10. Workbench; 11. Slide rail; 20. First bracket; 21. Slider; 30. Clamping mechanism; 31. First lifting mechanism; 32. Crossbeam; 33. Second bracket; 330. Clamping member; 331. Clamping block; 3311. Mounting hole; 332. Elastic buffer member; 333. Pressing member; 3331. Avoidance opening; 3332. Pressing plate; 3333. Connecting plate; 34. First moving mechanism; 40. Welding mechanism; 50. Bending mechanism; 51. Second lifting mechanism; 52. Lateral pushing mechanism; 521. Pushing member; 5211. Inclined surface; 60. Photovoltaic module; 61. Battery string; 611. Welding ribbon; 62. Bus bar; 621. Tail end; 70. Third moving mechanism; 80. Camera; 90. Fourth moving mechanism; 91. Drive motor; 92. Rack. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] See Figure 1 、 Figure 3 、 Figure 5 and Figure 8 , Figure 1、 Figure 3 、 Figure 5 and Figure 8 Four structural diagrams of a busbar welding and bending device according to an embodiment are shown from different perspectives. An embodiment of the present application provides a busbar welding and bending device, which includes: a workbench 10, a first bracket 20, a clamping mechanism 30, a welding mechanism 40, and a bending mechanism 50. The first bracket 20 is arranged on the workbench 10. The first bracket 20 includes but is not limited to a gantry. The clamping mechanism 30 is mounted on the first bracket 20, and the clamping mechanism 30 is used to press the welding strip 611 to be welded onto the busbar 62. The welding mechanism 40 is mounted on the first bracket 20, and the welding mechanism 40 is used to weld and fix the welding strip 611 to the busbar 62. The bending mechanism 50 is mounted on the first bracket 20, and the bending mechanism 50 is used to bend and flatten the upward-turned tail end 621 of the busbar 62. The pressing mechanism 30 and the welding mechanism 40 are both located on one side of the first bracket 20 along the extending direction of the bus bar 62 , and the bending mechanism 50 is located on the other side.

[0033] It should be noted that the extension direction of the bus bar 62 is also the length direction of the bus bar 62. Figures 1 to 4 In addition, the extending direction of the welding strip 611 is also the length direction of the welding strip 611, as shown in FIG. Figure 1 or Figure 3 The y-axis is shown in .

[0034] When the above-mentioned busbar welding and bending equipment is working, the relative position of the clamping mechanism 30 and the busbar 62 is adjusted so that the clamping mechanism 30 and the busbar 62 are aligned vertically up and down, and the welding strip 611 to be welded is pressed onto the busbar 62 by the clamping mechanism 30, and then the welding strip 611 and the busbar 62 are welded and fixed by the welding mechanism 40; after completing the welding connection between the welding strip 611 and the busbar 62, the relative position of the bending mechanism 50 and the busbar 62 is adjusted so that the bending mechanism 50 and the busbar 62 are aligned vertically up and down, and the upward-turned tail end 621 of the busbar 62 is bent and flattened by the bending mechanism 50. It can be seen that the bus bar 62 and the welding strip 611 can be welded and fixed, and the tail end 621 of the bus bar 62 can be bent, that is, the welding function and the bending function of the bus bar 62 are integrated, and the degree of automation is relatively high; in addition, the clamping mechanism 30 and the welding mechanism 40 are arranged on one side of the first bracket 20, and the bending mechanism 50 is arranged on the other side of the first bracket 20, so that the bending mechanism 50 will not interfere with the clamping mechanism 30, so that the clamping mechanism 30, the welding mechanism 40 and the bending mechanism 50 can be integrated on the first bracket 20, with a compact structure and small space occupation; in addition, the distance between the welding position and the bending position is small, which can reduce the transfer time and has high production efficiency.

[0035] See also Figures 4 to 6 , Figure 6 Shown Figure 5 Enlarged structural diagram at B. In one embodiment, the clamping mechanism 30 includes a first lifting mechanism 31, a crossbeam 32 and a plurality of second brackets 33. The first lifting mechanism 31 is mounted on the first bracket 20, and the first lifting mechanism 31 is connected to the crossbeam 32. The first lifting mechanism 31 is used to drive the crossbeam 32 to move up and down. The extension direction of the crossbeam 32 is parallel to the extension direction of the busbar 62. All the second brackets 33 are arranged in sequence along the extension direction of the crossbeam 32. Each second bracket 33 is arranged corresponding to each battery string 61 of the photovoltaic module 60. Optionally, the number of battery strings 61 of the photovoltaic module 60 is, for example, six, and the number of the second brackets 33 is correspondingly six. When the first lifting mechanism 31 drives the beam 32 to move up and down, the beam 32 can synchronously drive the second brackets 33 to move up and down, so that the welding strips 611 on each battery string 61 of the photovoltaic module 60 can be pressed tightly against the bus bar 62 below it, and the welding strips 611 on each battery string 61 can be welded to the bus bar 62 through the welding mechanism 40, with high welding efficiency; or, after welding is completed, the beam 32 can synchronously drive the second brackets 33 to rise, and the second brackets 33 synchronously release the battery strings 61.

[0036] Specifically, each second bracket 33 is provided with a plurality of clamping members 330 arranged in sequence along an extension direction parallel to the crossbeam 32. Each clamping member 330 is pressed against each welding strip 611 of the battery string 61 so that the welding strip 611 is tightly attached to the bus bar 62. Optionally, when the number of welding strips 611 of a battery string 61 on the bus bar 62 is 10, the number of clamping members 330 on a second bracket 33 is correspondingly 10, and each clamping member 330 corresponds to the position of each welding strip 611. In this way, after the second bracket 33 moves downward, each clamping member 330 can be pressed against each welding strip 611 so that each welding strip 611 can be tightly attached to the bus bar 62.

[0037] In some embodiments, the number of first lifting mechanisms 31 can be one or more, such as two, three, or other numbers. Compared to one first lifting mechanism 31, multiple first lifting mechanisms 31 can synchronously drive the crossbeam 32 to move up and down, resulting in higher stability.

[0038] Optionally, the first lifting mechanism 31 can be configured as a cylinder, a hydraulic cylinder, a motor screw or a motor cam mechanism, etc., as long as it can drive the crossbeam 32 to move up and down.

[0039] In one embodiment, the clamping mechanism 30 further includes a plurality of first movable mechanisms 34 sequentially disposed on the crossbeam 32 along the extension direction of the crossbeam 32. Each first movable mechanism 34 is connected to a corresponding second bracket 33, and the first movable mechanism 34 is used to drive the second bracket 33 to adjust its position along the extension direction of the crossbeam 32. In this way, the first movable mechanism 34 can drive the second bracket 33 to adjust its position along the extension direction of the crossbeam 32 according to the spacing between adjacent battery strings 61, so that each second bracket 33 corresponds to each battery string 61 in the vertical direction, thereby adapting to the welding operation of photovoltaic modules 60 of different formats.

[0040] Similar to the first lifting mechanism 31 , the first moving mechanism 34 includes but is not limited to a cylinder, a hydraulic cylinder, a motor screw or a motor cam mechanism, etc., as long as it can drive the second bracket 33 to move along the extension direction of the beam 32, thereby adjusting the position of the second bracket 33 on the beam 32.

[0041] See also Figure 4 、 Figure 6 and Figure 7 In some embodiments, the pressing member 330 includes a pressing block 331, an elastic buffer 332, and a pressing member 333. The pressing block 331 is connected to the second bracket 33, and the pressing member 333 is connected to the pressing block 331 via the elastic buffer 332. The pressing member 333 is used to press the welding ribbon 611 to press the welding ribbon 611 against the bus bar 62. In this way, when the pressing member 330 is pressed against the welding ribbon 611 via the pressing member 333, the elastic buffer 332 acts as a buffer, thereby reducing damage to the welding ribbon 611 caused by the pressing member 330.

[0042] Based on the above embodiment, specifically, when the welding mechanism 40 is a laser welding device, the pressing member 330 is provided with a relief opening 3331 for avoiding the laser beam of the welding mechanism 40. Thus, while the pressing member 333 is pressed against the welding strip 611, the relief opening 3331 allows the laser beam of the welding mechanism 40 to pass through the relief opening 3331 and weld the welding strip 611 and the bus bar 62 at the contact point, thereby firmly welding and fixing the welding strip 611 to the bus bar 62.

[0043] The pressing member 333 includes a pressure plate 3332, and a relief opening 3331 extends through the pressing plate 3332 and is located in the middle of the pressing plate 3332. The specific welding connection position of the welding strip 611 and the busbar 62 corresponds to the relief opening 3331, and the surrounding area is compressed and fixed by the pressing plate 3332, thereby achieving a good welding and fixing effect.

[0044] In some embodiments, the pressing block 331 is provided with a mounting hole 3311, and the mounting hole 3311 passes through the pressing block 331 in the vertical direction. The pressing member 333 is movably arranged in the mounting hole 3311. The pressing member 333 also includes a connecting plate 3333, and the connecting plate 3333 is connected to the pressing block 331 through an elastic buffer 332. Optionally, two connecting plates 3333 are provided and are located on opposite sides of the pressing plate 3332. Two elastic buffers 332 are correspondingly provided, and the two elastic buffers 332 are correspondingly connected to the two connecting plates 3333. The elastic buffer 332 includes but is not limited to a spring or an elastic strip. Among them, when the clamping member 330 does not press against the welding strip 611, under the action of the elastic force of the elastic buffer member 332, the pressure plate 3332 of the pressing member 333 protrudes downward to the outside of the mounting hole 3311, so that in the process of the clamping member 330 pressing the welding strip 611 downward, the elastic buffer member 332 plays a buffering role on the pressing member 333; when the clamping member 330 presses against the welding strip 611, the pressure plate 3332 first contacts the welding strip 611 and retreats into the mounting hole 3311, and the elastic buffer member 332 is stretched to play a buffering role, which can prevent the clamping member 330 from hard contact with the welding strip 611 and cause damage to the welding strip 611.

[0045] In one embodiment, multiple welding mechanisms 40 are provided, and the busbar welding and bending equipment further includes multiple second movable mechanisms (not shown) disposed on the first bracket 20. Each second movable mechanism is connected to a corresponding welding mechanism 40, and the second movable mechanism is used to drive the welding mechanism 40 to move in a direction parallel to the extension of the busbar 62. In this way, the multiple welding mechanisms 40 can respectively perform welding operations on multiple welding strips 611 and busbars 62, thereby improving welding efficiency and increasing production efficiency. In addition, the second movable mechanism can drive the welding mechanism 40 to move and adjust its position in a direction parallel to the extension of the busbar 62, thereby enabling welding operations on more welding strips 611 and busbars 62.

[0046] In some specific embodiments, the specific number of welding mechanisms 40 is, for example, the same as the number of battery strings 61. In this embodiment, there are six battery strings 61, and the number of welding mechanisms 40 is correspondingly six, with each welding mechanism 40 corresponding to each battery string 61. Each welding mechanism 40 is responsible for welding the welding ribbon 611 of each battery string 61 to the bus bar 62.

[0047] Of course, as some optional solutions, the number of welding mechanisms 40 is not limited to multiple, and can also be set to one. Correspondingly, the second moving mechanism is set to one.

[0048] It should be noted that the specific structure of the second moving mechanism is similar to that of the first moving mechanism 34 . As long as it can drive the welding mechanism 40 to move along the extension direction parallel to the bus bar 62 , it will not be described in detail here.

[0049] See also Figure 2 and Figure 9 In one embodiment, the bending mechanism 50 includes a second lifting mechanism 51, a lateral pushing mechanism 52, and a pushing member 521, which are disposed on the first bracket 20. The lateral pushing mechanism 52 is connected to the second lifting mechanism 51, and the pushing member 521 is connected to the lateral pushing mechanism 52. The second lifting mechanism 51 is used to drive the lateral pushing mechanism 52 to move up and down, and the lateral pushing mechanism 52 is used to drive the pushing member 521 to move in a direction parallel to the extension direction of the bus bar 62. The pushing member 521 abuts against the tail end 621 of the bus bar 62 and can drive the tail end 621 to bend. In this way, when the upward-turned tail end 621 of the bus bar 62 is bent and flattened, after the pushing piece 521 is aligned with the tail end 621 in the vertical direction, the second lifting mechanism 51 drives the pushing piece 521 to descend, so that the pushing piece 521 abuts against one side of the tail end 621, and then the lateral pushing mechanism 52 drives the tail end 621 to move, so that the tail end 621 is bent, for example, by 15° to 75°, and then the second lifting mechanism 51 drives the pushing piece 521 to descend, so that the tail end 621 can be flattened.

[0050] Specifically, along the extension direction of the busbars 62, there are at least two busbars 62, and the tail ends 621 of two adjacent busbars 62 are both, for example, flipped upward. Accordingly, there are two pushing members 521 on the lateral pushing mechanism 52, and the lateral pushing mechanism 52 can drive the two pushing members 521 to move toward each other or away from each other. In this way, after the two pushing members 521 move toward each other, they can enter the gap between the two adjacent tail ends 621, and then drive the two pushing members 521 to move away from each other, thereby bending the two tail ends 621 in a direction away from each other by a certain angle. Then, under the downward drive of the second lifting mechanism 51, the two tail ends 621 can be synchronously flattened.

[0051] See also Figure 2 and Figure 9 In some embodiments, the pusher 521 is configured as a pointed end, for example, to facilitate insertion into the gap between two adjacent tail ends 621. Specifically, the pusher 521 is provided with an inclined surface 5211 facing toward and abutting against the tail ends 621. The inclined surface 5211 is inclined relative to the upper surface of the battery cell, with an inclination angle of, for example, 30° to 60°. The inclined surface 5211 not only allows the pusher 521 to be configured as a pointed end, facilitating insertion into the gap between the two tail ends 621, but also allows the inclined surface 5211 to conform to the bent tail ends 621, thereby facilitating flattening the tail ends 621.

[0052] In one embodiment, the busbar welding and bending equipment further includes a third moving mechanism 70 disposed on the first bracket 20. The third moving mechanism 70 is connected to the second lifting mechanism 51 and is configured to drive the second lifting mechanism 51 to move in a direction parallel to the extension of the busbar 62. Thus, before the second lifting mechanism 51 drives the pusher 521 to move up and down, the third moving mechanism 70 drives the pusher 521 to be precisely moved above each tail end 621 to be bent. This allows the use of a single bending mechanism 50, eliminating the need for two or more bending mechanisms 50, resulting in a simpler structure and lower costs.

[0053] In one embodiment, the busbar welding and bending apparatus further includes a camera 80 and a controller (not shown). The camera 80 is mounted on the first bracket 20 and is used to capture images of the busbar 62 and the welding ribbon 611. The camera 80, the clamping mechanism 30, the welding mechanism 40, and the bending mechanism 50 are all electrically connected to the controller. The controller is used to determine the position of the busbar 62 and the welding ribbon 611 based on the images and to control the operation of the clamping mechanism 30, the welding mechanism 40, and the bending mechanism 50 based on the positions of the busbar 62 and the welding ribbon 611.

[0054] The cameras 80 may include, but are not limited to, a plurality of cameras, the specific number of which is, for example, the same as the number of battery strings 61. In this embodiment, there are six battery strings 61, and there are correspondingly six cameras 80. Each camera 80 is disposed above each battery string 61, and each camera 80 is used to capture images of the solder ribbons 611 and bus bars 62 on each battery string 61.

[0055] See also Figure 1 In one embodiment, the busbar welding and bending equipment further includes a fourth moving mechanism 90 disposed on the workbench 10. The fourth moving mechanism 90 is connected to the first bracket 20 and is used to drive the first bracket 20 to move along the extension direction of the welding ribbon 611. In this way, under the driving action of the fourth moving mechanism 90, the first bracket 20 and the camera 80, the pressing mechanism 30, the welding mechanism 40, and the bending mechanism 50 disposed on the first bracket 20 can all be moved and adjusted along the extension direction of the welding ribbon 611, thereby enabling welding operations on the welding ribbon 611 and the busbar 62 at different positions of the battery string 61 along the extension direction of the welding ribbon 611, and also enabling bending and flattening operations on the busbar 62 at different positions.

[0056] In some embodiments, the workbench 10 is provided with two slide rails 11, for example, two of which are located on opposite sides of the photovoltaic module 60. The guide direction of the slide rails 11 is parallel to the extension direction of the welding ribbon 611. The first bracket 20 is provided with a slider 21 that is slidably mounted on the slide rails 11. The first bracket 20 is slidably mounted on the workbench 10 and, driven by the fourth movement mechanism 90, can be freely adjusted along the extension direction of the slide rails 11 according to actual needs.

[0057] It should be noted that the specific structure of the fourth moving mechanism 90 is similar to that of the first moving mechanism 34 , as long as it can drive the first bracket 20 to slide along the slide rail 11 .

[0058] Specifically, the first lifting mechanism 31, the first moving mechanism 34, the welding mechanism 40, the second moving mechanism, the second lifting mechanism 51, the lateral pushing mechanism 52, the third moving mechanism 70, the camera 80 and the fourth moving mechanism 90 are all electrically connected to the controller, and work in coordination under the control of the controller, with a high degree of automation.

[0059] In one embodiment, the fourth moving mechanism 90 includes a drive motor 91 mounted on the first bracket 20, a driving gear connected to the drive motor 91, and a rack 92 mounted on the workbench 10, the driving gear meshing with the rack 92. When the drive motor 91 is in operation, it rotates the driving gear, which then moves along the rack 92, thereby driving the first bracket 20 to slide along the slide rail 11 for adjustment.

[0060] In one embodiment, the welding mechanism 40 includes but is not limited to a laser welding device, an electromagnetic welding device, a hot air welding device, or an electric soldering iron welding device.

[0061] Specifically, the welding mechanism 40 in this embodiment is a laser welding device. Compared to other types of welding mechanisms 40, such as electromagnetic welding devices, the laser welding device is a non-contact welding method that does not risk cell cracking and can quickly adjust the welding position according to the layout. In addition, point-to-point welding can reduce the use of flux, reduce the impact of flux on component reliability, and improve component reliability. The non-contact welding method avoids the occurrence of cracking during contact welding. In addition, the thermal stress during point-to-point heating is small, and instantaneous local heating can be achieved, resulting in a short welding time, minimal thermal impact, and improved reliability.

[0062] In some embodiments, the busbar welding and bending equipment further includes a conveying mechanism disposed on a workbench. The conveying mechanism is configured to carry and convey the photovoltaic module 60, such that the photovoltaic module 60 to be welded and bent is conveyed to the bottom of the first bracket 20. After welding and bending of the photovoltaic module 60 are completed, the photovoltaic module 60 is removed from the workbench and the next photovoltaic module 60 to be welded and bent is conveyed to the bottom of the first bracket 20. Specifically, the conveying mechanism is electrically connected to the controller.

[0063] In a specific embodiment, the welding steps of the busbar welding and bending equipment include:

[0064] Step S100: Using each camera 80, an image of the welding ribbon 611 of each cell string 61 of the photovoltaic assembly 60 and the bus bar 62 thereunder is captured. The controller determines the position of the welding ribbon 611 of each cell string 61 and the bus bar 62 thereunder based on the image.

[0065] Optionally, before the camera 80 acquires an image of the photovoltaic assembly 60 , the photovoltaic assembly 60 is transported to the bottom of the first bracket 20 by the transport mechanism to complete the loading operation.

[0066] Step S200: Based on the positions of the welding ribbons 611 of each battery string 61 and the busbars 62 thereunder, the controller controls the fourth moving mechanism 90 to move and adjust the first bracket 20 along the extending direction of the welding ribbons 611, so that the welding mechanism 40 moves to above the busbars 62 and each welding ribbon 611 to be welded.

[0067] Step S300: The controller controls the pressing mechanism 30 to operate, and the first lifting mechanism 31 drives the crossbeam 32 to move upward and downward. The crossbeam 32 simultaneously drives the second brackets 33 to move upward and downward, so that the welding ribbons 611 on each battery string 61 of the photovoltaic module 60 are pressed tightly against the bus bar 62 below.

[0068] Step S400: The controller controls each welding mechanism 40 to perform welding. Driven by the corresponding second moving mechanism, each welding mechanism 40 can move to a position corresponding to the overlap position of each welding ribbon 611 on each battery string 61 and the bus bar 62, and perform the welding operation to complete the welding connection between each welding ribbon 611 on each battery string 61 and the bus bar 62.

[0069] Step S500: After the welding connection between each welding ribbon 611 and the bus bar 62 is completed, the controller controls the first lifting mechanism 31 to move, driving the crossbeam 32 to rise, thereby driving each second bracket 33 to rise;

[0070] Step S600: Based on the positions of the welding ribbons 611 of each battery string 61 and the busbars 62 thereunder, the controller controls the fourth moving mechanism 90 to move and adjust the first bracket 20 along the extending direction of the welding ribbons 611, so that the bending mechanism 50 moves to above the welded busbars 62 and each welding ribbon 611.

[0071] Step S700: Based on the specific position of the upwardly turned tail ends 621 of the busbar 62, the controller controls the third moving mechanism 70 to move and adjust the position along the extension direction of the busbar 62, and accurately moves the pushing member 521 of the lateral pushing mechanism 52 to above each tail end 621 that needs to be bent.

[0072] Step S800: The controller controls the second lifting mechanism 51 to lift and lower, causing the inclined surface 5211 of the pushing member 521 to abut against the tail end 621 and then stop lifting and lowering. The controller controls the lateral pushing mechanism 52 to drive the pushing member 521 to move. After the pushing member 521 bends the tail end 621 to a certain angle, the controller controls the second lifting mechanism 51 to continue lifting and lowering. The second lifting mechanism 51 causes the pushing member 521 to move downward to flatten the tail end 621 after being bent at a certain angle.

[0073] Step S900 , repeating the above steps S100 to S800 , so as to complete the welding operation of the busbar 62 and the welding ribbon 611 at other positions of the battery string 61 along the extension direction y of the welding ribbon 611 , and the bending operation of the tail end 621 of the busbar 62 .

[0074] Optionally, after the photovoltaic assembly 60 is welded and bent, it is outputted outward, and the next photovoltaic assembly 60 to be welded and bent is transported to the bottom of the first bracket 20, and the above steps S100 to S900 are performed.

[0075] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0076] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0077] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0078] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0079] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0080] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A busbar welding and bending device, characterized in that: The busbar welding and bending equipment includes: Workbench (10); a first bracket (20), the first bracket (20) being arranged on the workbench (10); a pressing mechanism (30), the pressing mechanism (30) being mounted on the first bracket (20), the pressing mechanism (30) being used to press the welding strip (611) to be welded onto the busbar (62); a welding mechanism (40), the welding mechanism (40) being mounted on the first bracket (20), the welding mechanism (40) being used to weld and fix the welding strip (611) and the bus bar (62); and A bending mechanism (50) is installed on the first bracket (20), and the bending mechanism (50) is used to bend and flatten the upwardly turned tail end (621) of the busbar (62). The pressing mechanism (30) and the welding mechanism (40) are both located on one side of the first bracket (20) along the extension direction of the busbar (62), and the bending mechanism (50) is located on the other side.

2. The busbar welding and bending equipment according to claim 1, characterized in that: The pressing mechanism (30) comprises a first lifting mechanism (31), a beam (32) and a plurality of second brackets (33); the first lifting mechanism (31) is mounted on the first bracket (20), the first lifting mechanism (31) is connected to the beam (32), and the first lifting mechanism (31) is used to drive the beam (32) to move up and down; the extension direction of the beam (32) is parallel to the extension direction of the bus bar (62), all the second brackets (33) are arranged in sequence along the extension direction of the beam (32), and each second bracket (33) is correspondingly arranged to each battery string (61) of the photovoltaic module (60); each second bracket (33) is provided with a plurality of pressing members (330) arranged in sequence along the extension direction parallel to the beam (32), and each pressing member (330) is pressed against each welding strip (611) to make the welding strip (611) and the bus bar (62) tightly attached.

3. The busbar welding and bending equipment according to claim 2, characterized in that: The clamping mechanism (30) further comprises a plurality of first moving mechanisms (34) sequentially arranged on the crossbeam (32) along the extension direction of the crossbeam (32), each of the first moving mechanisms (34) being correspondingly connected to each of the second brackets (33), and the first moving mechanisms (34) being used to drive the second brackets (33) to move along the extension direction of the crossbeam (32).

4. The busbar welding and bending equipment according to claim 2, characterized in that: The pressing member (330) includes a pressing block (331), an elastic buffer member (332) and a pressing member (333); the pressing block (331) is connected to the second bracket (33); the pressing member (333) is connected to the pressing block (331) via the elastic buffer member (332); the pressing member (333) is used to press and cooperate with the welding strip (611) so that the welding strip (611) is pressed against the bus bar (62); the welding mechanism (40) is a laser welding device, and the pressing member (333) is provided with an avoidance opening (3331) for avoiding the laser beam of the welding mechanism (40).

5. The busbar welding and bending equipment according to claim 1, characterized in that: The welding mechanisms (40) are provided in plurality, and the busbar welding and bending equipment further comprises a plurality of second moving mechanisms arranged on the first bracket (20), each of the second moving mechanisms being correspondingly connected to each of the welding mechanisms (40), and the second moving mechanisms being used to drive the welding mechanisms (40) to move along an extension direction parallel to the busbar (62).

6. The busbar welding and bending equipment according to claim 1, characterized in that: The bending mechanism (50) comprises a second lifting mechanism (51), a transverse pushing mechanism (52) and a pushing piece (521) arranged on the first bracket (20); the transverse pushing mechanism (52) is connected to the second lifting mechanism (51); the pushing piece (521) is connected to the transverse pushing mechanism (52); the second lifting mechanism (51) is used to drive the transverse pushing mechanism (52) to move up and down; the transverse pushing mechanism (52) is used to drive the pushing piece (521) to move along an extension direction parallel to the bus bar (62); the pushing piece (521) and the tail end (621) of the bus bar (62) abut against each other and can drive the tail end (621) to bend.

7. The busbar welding and bending equipment according to claim 6, characterized in that: The busbar welding and bending equipment further comprises a third moving mechanism (70) arranged on the first bracket (20), the third moving mechanism (70) being connected to the second lifting mechanism (51), and the third moving mechanism (70) being used to drive the second lifting mechanism (51) to move along an extension direction parallel to the busbar (62).

8. The busbar welding and bending equipment according to claim 1, characterized in that: The busbar welding and bending device further comprises a camera (80) and a controller; the camera (80) is arranged on the first bracket (20), and the camera (80) is used to obtain images of the busbar (62) and the welding strip (611); the camera (80), the pressing mechanism (30), the welding mechanism (40) and the bending mechanism (50) are all electrically connected to the controller; the controller is used to determine the positions of the busbar (62) and the welding strip (611) according to the images, and control the operation of the pressing mechanism (30), the welding mechanism (40) and the bending mechanism (50) according to the positions of the busbar (62) and the welding strip (611).

9. The busbar welding and bending equipment according to claim 1, characterized in that: The busbar welding and bending equipment further comprises a fourth moving mechanism (90) arranged on the workbench (10); the fourth moving mechanism (90) is connected to the first bracket (20), and the fourth moving mechanism (90) is used to drive the first bracket (20) to move along the extension direction of the welding strip (611).

10. The busbar welding and bending equipment according to any one of claims 1 to 9, characterized in that: The welding mechanism (40) comprises a laser welding device, an electromagnetic welding device, a hot air welding device or an electric soldering iron welding device.

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