Busbar preparation device and busbar welding apparatus

Abstract

A busbar preparation device. The busbar preparation device comprises a first preparation mechanism (1), a second preparation mechanism (2), a first bearing mechanism (3), a second bearing mechanism (4), a third bearing mechanism (5), a first carrying mechanism (6), a second carrying mechanism (7) and a transfer mechanism (8). The first bearing mechanism (3) comprises a first bearing platform (31), the second bearing mechanism (4) comprises a second bearing platform (41) and a first temporary storage platform (42), and the third bearing mechanism (5) comprises a third bearing platform (51) and a second temporary storage platform (52). The first carrying mechanism (6) carries to the second bearing platform (41) a bent busbar prepared by means of the first preparation mechanism (1). The second carrying mechanism (7) carries to the third bearing platform (51) or the second temporary storage platform (42) a straight busbar prepared by means of the second preparation mechanism (2). The transfer mechanism (8) transfers the straight busbar on the second temporary storage platform (52) to the first temporary storage platform (42). The first carrying mechanism (6) further carries the straight busbar on the first temporary storage platform (42) to the first bearing platform (31). The present application further relates to a busbar welding apparatus. According to the busbar preparation device and the busbar welding apparatus, the structural complexity and costs of the busbar preparation device are reduced.

Description

Busbar preparation device and busbar welding equipment TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic cell module production equipment, in particular to a busbar preparation device and busbar welding equipment. BACKGROUND

[0002] Solar cell modules can convert solar energy into electrical energy and are gradually being popularized and applied. In the production process of solar cell modules, there is a process of welding busbars, which requires welding busbars to the long tab at both ends of the cell string module and the long tab in the middle. Among them, in order to facilitate the subsequent installation of the junction box, the busbar welded to the long tab in the middle of the cell string module is a bent busbar with a bent end, and the bent end of the busbar is used to be inserted into the junction box and welded together with the junction box. The busbar welded to the long tab at both ends of the cell string module is a flat busbar without bending.

[0003] During the welding process of the busbar, the bent busbar and the flat busbar required for welding need to be prepared, and the bent busbar and the flat busbar need to be supplied to the corresponding welding station. The existing busbar preparation device includes a first carrying table, a second carrying table and a third carrying table arranged in sequence along the horizontal direction, a first flat busbar preparation mechanism and a bent busbar preparation mechanism arranged on one side of the three carrying tables, a second flat busbar preparation mechanism arranged on the other side of the three carrying tables, and a first conveying mechanism and a second conveying mechanism. Among them, the first conveying mechanism is used to convey the flat busbar prepared by the first flat busbar preparation mechanism to the first carrying table, and is used to convey the bent busbar prepared by the bent busbar preparation mechanism to the second carrying table. The second conveying mechanism is used to convey the flat busbar prepared by the second flat busbar preparation mechanism to the third carrying table. Among them, the flat busbar conveyed to the first carrying table is finally welded to the long tab at the first end of the cell string module, the bent busbar conveyed to the second carrying table is finally welded to the long tab in the middle of the cell string module, and the flat busbar conveyed to the third carrying table is finally welded to the long tab at the second end of the cell string module.

[0004] The existing busbar preparation device needs to set up one flat busbar preparation mechanism on both sides of the welding station for the flat busbar to be welded at both ends of the cell string module. Since two flat busbar preparation mechanisms need to be set up, and each flat busbar preparation mechanism at least includes a busbar unwinding assembly, a pressing assembly, a cutting assembly, a traction assembly, a preparation table and other components, the equipment structure of the busbar preparation device is relatively complex, the equipment maintenance workload is large, and the equipment cost is high. SUMMARY

[0005] To solve the at least one technical problem above, the application provides a busbar preparation device, which adopts the following technical scheme:

[0006] The busbar preparation device comprises a first preparation mechanism, a second preparation mechanism, a first carrying mechanism, a second carrying mechanism, a third carrying mechanism, a first conveying mechanism, a second conveying mechanism and a transfer mechanism, wherein:

[0007] The first carrying mechanism, the second carrying mechanism and the third carrying mechanism are sequentially and spacedly arranged along a first horizontal direction and are respectively movable along the first horizontal direction, wherein the first carrying mechanism comprises a first carrying table, the second carrying mechanism comprises a second carrying table and a first buffer table, and the third carrying mechanism comprises a third carrying table and a second buffer table;

[0008] The first preparation mechanism is arranged at the side of the first carrying mechanism, the first preparation mechanism is configured to prepare a bent busbar, and the first conveying mechanism is configured to convey the bent busbar prepared by the first preparation mechanism to the second carrying table;

[0009] The second preparation mechanism is arranged at the side of the third carrying mechanism, the second preparation mechanism is configured to prepare a straight busbar, and the second conveying mechanism is configured to convey the straight busbar prepared by the second preparation mechanism to the third carrying table or the second buffer table;

[0010] The transfer mechanism is arranged between the third carrying mechanism and the second carrying mechanism, the transfer mechanism is configured to pick up the straight busbar buffered on the second buffer table and convey the picked-up straight busbar to the first buffer table;

[0011] The first conveying mechanism is further configured to pick up the straight busbar buffered on the first buffer table and convey the picked-up straight busbar to the first carrying table.

[0012] The busbar preparation device provided by the application only needs to arrange one straight busbar preparation mechanism, and through the cooperation of the first conveying mechanism, the second conveying mechanism, the first buffer table, the second buffer table and the transfer mechanism, the straight busbar can be respectively supplied to the first carrying table and the third carrying table, so as to meet the welding requirement of the straight busbars at both ends of the battery string assembly. Compared with the existing busbar preparation device, the first buffer table, the second buffer table and the transfer mechanism with simple structure replace the straight busbar preparation mechanism with complex structure, the structure complexity and cost of the busbar preparation device of the application are reduced under the condition of ensuring the busbar preparation efficiency, and the daily maintenance work of the straight busbar preparation mechanism on one side is also saved.

[0013] In some embodiments, the first conveying mechanism comprises a first driving module and at least one first adsorption assembly, wherein the first adsorption assembly is connected to the driving end of the first driving module, and the first driving module is configured to drive the first adsorption assembly to translate and lift; the first adsorption assembly is configured to, under the driving of the first driving module, suck the bent bus bars from the first preparation mechanism and convey the sucked bent bus bars to the second bearing table, and suck the flat bus bars from the first buffer table and convey the sucked flat bus bars to the first bearing table.

[0014] The first conveying mechanism with simple structure is provided, which drives the first adsorption assembly to translate and lift through the first driving module, so as to drive the first adsorption assembly to suck the bent bus bars from the first preparation mechanism and convey the sucked bent bus bars to the second bearing table, and suck the flat bus bars from the first buffer table and convey the sucked flat bus bars to the first bearing table.

[0015] In some embodiments, the first conveying mechanism comprises two first adsorption assemblies connected side by side to the driving end of the first driving module, wherein one of the first adsorption assemblies releases the sucked bent bus bars from the first preparation mechanism to the second bearing table, and the other first adsorption assembly sucks the flat bus bars from the first buffer table.

[0016] By arranging two first adsorption assemblies, the first conveying mechanism can suck the flat bus bars from the first buffer table while conveying the bent bus bars on the first preparation mechanism to the second bearing table, thereby improving the conveying efficiency of the first conveying mechanism on the bus bars.

[0017] In some embodiments, the second conveying mechanism comprises a second driving module and at least one second adsorption assembly, wherein the second adsorption assembly is connected to the driving end of the second driving module, and the second driving module is configured to drive the second adsorption assembly to translate and lift; the second adsorption assembly is configured to, under the driving of the second driving module, suck the flat bus bars from the second preparation mechanism and convey the sucked flat bus bars to the third bearing table or the second buffer table.

[0018] The second conveying mechanism with simple structure is provided, which drives the second adsorption assembly to translate and lift through the second driving module, so as to drive the second adsorption assembly to suck the flat bus bars from the second preparation mechanism and convey the sucked flat bus bars to the third bearing table or the second buffer table.

[0019] In some embodiments, the second conveying mechanism comprises two second adsorption assemblies connected side by side to the driving end of the second driving module, and the two second adsorption assemblies are configured to respectively suck one flat bus bar from the second preparation mechanism and convey the sucked flat bus bar to the third bearing table and the second buffer table, respectively.

[0020] By arranging two second adsorption assemblies, the second carrying mechanism can carry the two groups of flat bus bars to the third carrying table and the second buffer table respectively after sucking the two groups of flat bus bars from the second preparation mechanism, thereby improving the carrying efficiency of the second carrying mechanism on the bus bars.

[0021] In some embodiments, the first buffer table and the second buffer table are each provided with a first adsorption hole and a positioning pin assembly, wherein the positioning pin assembly includes a first positioning pin and a second positioning pin arranged at intervals, and the distance between the first positioning pin and the second positioning pin matches the width of the flat bus bar.

[0022] The first adsorption hole can adsorb and fix the flat bus bar buffered on the first buffer table or the second buffer table, and the first positioning pin and the second positioning pin can limit the flat bus bar buffered on the first buffer table or the second buffer table from both sides to prevent the flat bus bar from falling or being offset.

[0023] In some embodiments, the first carrying table, the second carrying table, and the third carrying table are each provided with a second adsorption hole.

[0024] By arranging the second adsorption hole on the surface of the first carrying table, the second carrying table, and the third carrying table, the first carrying table, the second carrying table, and the third carrying table can all adsorb and fix the bent bus bar or the flat bus bar carried thereon, thereby ensuring the welding precision of the bus bar.

[0025] In some embodiments, the bus bar preparation device further includes a slide rail arranged along the first horizontal direction; the first carrying mechanism, the second carrying mechanism, and the third carrying mechanism are all slidingly connected to the slide rail and can slide along the slide rail to adjust the position in the first horizontal direction; or the first carrying mechanism, the second carrying mechanism, the third carrying mechanism, and the transfer mechanism are all slidingly connected to the slide rail and can slide along the slide rail to adjust the position in the first horizontal direction.

[0026] By slidingly connecting the first carrying mechanism, the second carrying mechanism, and the third carrying mechanism to the same slide rail, the structure is simple and compact, and the movement of the first carrying mechanism, the second carrying mechanism, and the third carrying mechanism in the first horizontal direction is guided, thereby ensuring that the flat bus bar carried to the first carrying mechanism and the third carrying mechanism is located below the long welding strip at the first end and the second end of the battery string assembly, respectively, and the bent bus bar on the second carrying mechanism is located below the long welding strip in the middle of the battery string assembly. By slidingly connecting the transfer mechanism to the slide rail, the transfer mechanism can stably move between the second preparation mechanism and the second carrying mechanism, and the structure is more compact.

[0027] In some embodiments, the first carrying mechanism further comprises a first lifting driving module for driving the first carrying table to lift, the second carrying mechanism further comprises a second lifting driving module for driving the second carrying table to lift, and the third carrying mechanism further comprises a third lifting driving module for driving the third carrying table to lift.

[0028] The first carrying table is lifted by the first lifting driving module, so that the flat busbar on the first carrying table can be attached to the long weld strip at the first end of the battery string assembly, and finally ensure that the flat busbar on the first carrying table is welded to the long weld strip at the first end of the battery string assembly. The second carrying table is lifted by the second lifting driving module, so that the bent busbar on the second carrying table is attached to the long weld strip at the middle of the battery string assembly, and finally ensure that the bent busbar on the second carrying table is welded to the long weld strip at the middle of the battery string assembly. The third carrying table is lifted by the third lifting driving module, so that the flat busbar on the third carrying table is attached to the long weld strip at the second end of the battery string assembly, and finally ensure that the flat busbar on the third carrying table is welded to the long weld strip at the second end of the battery string assembly.

[0029] In some embodiments, the first buffer table and the second buffer table are arranged adjacent to each other, and the transfer mechanism is arranged between the first buffer table and the second buffer table.

[0030] The first buffer table and the second buffer table are arranged adjacent to each other, so that the transfer mechanism can pick up the flat busbar from the second buffer table and carry the picked flat busbar to the first buffer table while the busbars on the three carrying tables are being welded. The transfer of the transfer mechanism does not interfere with the welding, thereby ensuring the working rhythm and improving the welding efficiency of the busbar.

[0031] The present application also provides a busbar welding device, which comprises the busbar preparation device, the welding pickup device and the welding device according to any one of the above.

[0032] The welding pickup device is configured to pick up the battery string assembly to be welded and deliver it above the busbar preparation device, the first carrying table is used to deliver the carried flat busbar below the long weld strip at the first end of the battery string assembly, the second carrying table is used to deliver the carried bent busbar below the long weld strip at the middle of the battery string assembly, and the third carrying table is used to deliver the carried flat busbar below the long weld strip at the second end of the battery string assembly.

[0033] The welding device is configured to weld the flat busbar on the first carrying table to the long weld strip at the first end of the battery string assembly, weld the bent busbar on the second carrying table to the long weld strip at the middle of the battery string assembly, and weld the flat busbar on the third carrying table to the long weld strip at the second end of the battery string assembly.

[0034] The busbar preparation device realizes preparation of the busbar, and realizes bearing movement and welding support of the busbar. The welding pickup device moves the battery string assembly to be welded to the upper side of the busbar preparation device. The welding device realizes welding of the busbar to the long welding strip of the battery string assembly. When the welding device welds the busbar, the busbar preparation device can simultaneously prepare and transport the busbar, thereby improving the efficiency.

[0035] In some embodiments, the welding device comprises a first welding mechanism, a second welding mechanism and a third welding mechanism, wherein: the first welding mechanism is arranged above the first bearing table and is configured to weld the flat busbar on the first bearing table to the long welding strip at the first end of the battery string assembly; the second welding mechanism is arranged above the second bearing table and is configured to weld the bent busbar on the second bearing table to the long welding strip at the middle of the battery string assembly; and the third welding mechanism is arranged above the third bearing table and is configured to weld the flat busbar on the third bearing table to the long welding strip at the second end of the battery string assembly.

[0036] By arranging the welding device to comprise the first welding mechanism, the second welding mechanism and the third welding mechanism, the welding device can simultaneously weld the busbar to the long welding strip at the first end and the second end of the battery string assembly, and to the long welding strip at the middle of the battery string assembly, thereby improving the welding efficiency of the busbar.

[0037] In some embodiments, the welding device comprises a first heating mechanism, a second heating mechanism and a third heating mechanism, wherein: the first heating mechanism is arranged in the first bearing table, the second heating mechanism is arranged in the second bearing table, and the third heating mechanism is arranged in the third bearing table; the busbar welding equipment further comprises a pressing device, the pressing device comprises a first pressing mechanism arranged above the first bearing table, a second pressing mechanism arranged above the second bearing table, and a third pressing mechanism arranged above the third bearing table; the first pressing mechanism is configured to press the long welding strip at the first end of the battery string assembly on the flat busbar on the first bearing table, and the first heating mechanism is configured to heat the flat busbar on the first bearing table to weld the flat busbar on the long welding strip at the first end of the battery string assembly; the second pressing mechanism is configured to press the long welding strip at the middle of the battery string assembly on the bent busbar on the second bearing table, and the second heating mechanism is configured to heat the bent busbar on the second bearing table to weld the bent busbar on the long welding strip at the middle of the battery string assembly; and the third pressing mechanism is configured to press the long welding strip at the second end of the battery string assembly on the flat busbar on the third bearing table, and the third heating mechanism is configured to heat the flat busbar on the third bearing table to weld the flat busbar on the long welding strip at the second end of the battery string assembly.

[0038] By setting the welding device to include the first heating mechanism, the second heating mechanism and the third heating mechanism, the welding device can synchronously weld the bus bar to the remaining welding strips at the first end and the second end of the battery string assembly and the remaining welding strips at the middle part of the battery string assembly, thereby improving the welding efficiency of the bus bar. BRIEF DESCRIPTION OF DRAWINGS

[0039] FIG. 1 is a structural schematic diagram of a bus bar preparation device in an embodiment of the present application;

[0040] FIG. 2 is a structural schematic diagram of a second preparation mechanism, a third carrying mechanism and a second carrying mechanism in an embodiment of the present application;

[0041] FIG. 3 is a structural schematic diagram of a third carrying mechanism and a transfer mechanism in an embodiment of the present application;

[0042] FIG. 4 is a structural schematic diagram of a second carrying mechanism and a transfer mechanism in an embodiment of the present application;

[0043] FIG. 5 is a structural schematic diagram of a first carrying mechanism in an embodiment of the present application;

[0044] FIG. 6 is a structural schematic diagram of a first carrying mechanism in an embodiment of the present application;

[0045] FIG. 7 is a structural schematic diagram of a second carrying mechanism in an embodiment of the present application.

[0046] FIGS. 1 to 7 include:

[0047] a first preparation mechanism 1;

[0048] a second preparation mechanism 2;

[0049] a first carrying mechanism 3: a first carrying table 31;

[0050] a second carrying mechanism 4: a second carrying table 41, a first buffer table 42;

[0051] a third carrying mechanism 5: a third carrying table 51, a second buffer table 52;

[0052] a first carrying mechanism 6: a first driving module 61, a first adsorption assembly 62;

[0053] a second carrying mechanism 7: a second driving module 71, a second adsorption assembly 72;

[0054] a transfer mechanism 8: a base 81, a frame 82, a suction disc 83;

[0055] a slide rail 9. DETAILED DESCRIPTION

[0056] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0057] As shown in FIGS. 1-5, the bus bar preparation device in the embodiments of the present application comprises a first preparation mechanism 1, a second preparation mechanism 2, a first carrying mechanism 3, a second carrying mechanism 4, a third carrying mechanism 5, a first conveying mechanism 6, a second conveying mechanism 7 and a transfer mechanism 8, wherein:

[0058] The first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 are sequentially and spacedly arranged along a first horizontal direction (for example, the X-axis direction) and can respectively move along the first horizontal direction, wherein the first carrying mechanism 3 comprises a first carrying table 31, the second carrying mechanism 4 comprises a second carrying table 41 and a first buffer table 42, and the third carrying mechanism 5 comprises a third carrying table 51 and a second buffer table 52.

[0059] The first preparation mechanism 1 is arranged at the side of the first carrying mechanism 3, and the first preparation mechanism 1 is configured to prepare a bent bus bar, and the first conveying mechanism 6 is configured to convey the bent bus bar prepared by the first preparation mechanism 1 to the second carrying table 41.

[0060] The second preparation mechanism 2 is arranged at the side of the third carrying mechanism 5, and the second preparation mechanism 2 is configured to prepare a straight bus bar, and the second conveying mechanism 7 is configured to convey the straight bus bar prepared by the second preparation mechanism 2 to the third carrying table 51 or the second buffer table 52.

[0061] The transfer mechanism 8 is arranged between the third carrying mechanism 5 and the second carrying mechanism 4, and the transfer mechanism 8 is configured to pick up the straight bus bar buffered on the second buffer table 52 and convey the picked-up straight bus bar to the first buffer table 42.

[0062] The first conveying mechanism 6 is further configured to pick up the straight bus bar buffered on the first buffer table 42 and convey the picked-up straight bus bar to the first carrying table 31.

[0063] The first preparation mechanism 1 can adopt any one of the existing bent bus bar preparation mechanisms, and the second preparation mechanism 2 can adopt any one of the existing straight bus bar preparation mechanisms.

[0064] The optional working process of the bus bar preparation device in the embodiments of the present application is as follows:

[0065] The first preparation mechanism 1 and the second preparation mechanism 2 respectively prepare bent bus bars and straight bus bars.

[0066] The first carrying mechanism 6 carries the bent busbar prepared by the first preparation mechanism 1 to the second carrier 41. At the same time, the second carrying mechanism 7 carries the flat busbar prepared by the second preparation mechanism 2 to the third carrier 51 and the second buffer 52. The second carrying mechanism 7 can pick up two groups of flat busbars from the second preparation mechanism 2 at a time, and carry the flat busbars to the third carrier 51 or the second buffer 52 after picking up one group of flat busbars each time. Alternatively, the second carrying mechanism 7 can pick up two groups of flat busbars from the second preparation mechanism 2 at a time, and carry the two groups of flat busbars to the third carrier 51 and the second buffer 52 after picking up the two groups of flat busbars.

[0067] The transfer mechanism 8 picks up the flat busbar buffered on the second buffer 52, and carries the picked flat busbar to the first buffer 42. Then, the first carrying mechanism 6 picks up the flat busbar from the first buffer 42, and carries the picked flat busbar to the first carrier 31. In addition, after the second buffer 52 is emptied, the second carrying mechanism 7 picks up another group of flat busbars from the second preparation mechanism 2, and buffers the flat busbars on the second buffer 52.

[0068] At this point, the first carrier 31, the second carrier 41 and the third carrier 51 all carry the busbars required for the first round of busbar welding, and the second buffer 52 buffers the flat busbars required for the second round of busbar welding.

[0069] The first round of busbar welding is implemented as follows. After the battery string assembly to be welded is moved above the busbar preparation device, the first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 are controlled to translate in the first horizontal direction according to the positions of the lengthened welding tabs at the first end, the middle and the second end of the battery string assembly, so that the first carrier 31, the second carrier 41 and the third carrier 51 are located at the first welding position, the second welding position and the third welding position respectively, ensuring that the flat busbar on the first carrier 31 is located below the lengthened welding tab at the first end of the battery string assembly, the bent busbar on the second carrier 41 is located below the lengthened welding tab at the middle of the battery string assembly, and the flat busbar on the third carrier 51 is located below the lengthened welding tab at the second end of the battery string assembly. In this way, the busbars can be welded to the corresponding lengthened welding tabs. After the busbar welding is completed, the first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 are controlled to move back to the original positions.

[0070] While the first round of bus bar welding is being carried out, the transfer mechanism 8 carries the flat bus bars buffered on the second buffering table 52 to the first buffering table 42, so as to prepare for the second round of bus bar welding. Of course, the transfer mechanism 8 can also carry the flat bus bars buffered on the second buffering table 52 to the first buffering table 42 before the first round of bus bar welding is carried out.

[0071] After the first round of bus bar welding is completed, since the flat bus bars have been buffered on the first buffering table 42, after the first transfer mechanism 6 carries the bent bus bars prepared by the first preparation mechanism 1 to the second bearing table 41, the first transfer mechanism 6 can immediately pick up the flat bus bars buffered in advance from the first buffering table 42 and carry the flat bus bars to the first bearing table 31, so as to ensure the working rhythm. At the same time, the second transfer mechanism 7 carries the flat bus bars prepared by the second preparation mechanism 2 to the third bearing table 51 and the second buffering table 52.

[0072] At this time, the first bearing table 31, the second bearing table 41 and the third bearing table 51 all bear the bus bars required for the second round of bus bar welding, and the second buffering table 52 buffers the flat bus bars required for the third round of bus bar welding.

[0073] The second round of bus bar welding is carried out, and the specific process is the same as that of the first round of bus bar welding, which will not be described here. Similarly, during the implementation of the second round of bus bar welding or before the implementation of the second round of bus bar welding, the transfer mechanism 8 carries the flat bus bars buffered on the second buffering table 52 to the first buffering table 42, so as to prepare for the third round of bus bar welding.

[0074] It can be seen that the bus bar preparation device of the embodiment of the present application only needs to be provided with one flat bus bar preparation mechanism (i.e. the second preparation mechanism 2), and through the cooperation of the first transfer mechanism 6, the second transfer mechanism 7, the first buffering table 42, the second buffering table 52 and the transfer mechanism 8, the flat bus bars can be respectively supplied to the first bearing table 31 and the third bearing table 51, so as to meet the welding requirements of the flat bus bars at both ends of the battery string assembly.

[0075] Compared with the existing bus bar preparation device, the first buffering table 42, the second buffering table 52 and the transfer mechanism 8 with simple structure replace the flat bus bar preparation mechanism with complex structure, which reduces the structural complexity and cost of the bus bar preparation device of the embodiment of the present application under the condition of ensuring the bus bar preparation efficiency, and also saves the daily maintenance work of the flat bus bar preparation mechanism on one side.

[0076] Optionally, the first carrying mechanism 3 is configured to move between the first preparation mechanism 1 and the first welding position, the second carrying mechanism 4 is configured to move between the first preparation mechanism 1 and the second welding position, and the third carrying mechanism 5 is configured to move between the second preparation mechanism 2 and the third welding position. The required moving paths of the three are short, thereby ensuring the welding efficiency.

[0077] In addition, before or during the implementation of the current round of busbar welding, the flat busbars required for the next round of busbar welding have been cached on the first caching table 42. Therefore, before the implementation of the next round of busbar welding, the first carrying mechanism 6 can directly pick up the flat busbars cached in advance from the first caching table 42, without waiting for the transfer mechanism 8 to cache the flat busbars on the first caching table 42, thereby ensuring the work rhythm.

[0078] As shown in FIG. 6, optionally, the first carrying mechanism 6 includes a first driving module 61 and at least one first adsorption assembly 62, wherein the first adsorption assembly 62 is connected to the driving end of the first driving module 61, and the first driving module 61 is configured to drive the first adsorption assembly 62 to translate and lift. The first adsorption assembly 62 is configured to, under the driving of the first driving module 61, adsorb the bent busbar from the first preparation mechanism 1 and carry the adsorbed bent busbar to the second carrying table 41, and adsorb the flat busbar from the first caching table 42 and carry the adsorbed flat busbar to the first carrying table 31.

[0079] The first driving module 61 can adopt various existing driving modules capable of driving the first adsorption assembly 62 to translate and lift. For example, the first driving module 61 includes a translation driving part and a lifting driving part, wherein the lifting driving part is connected to the driving end of the translation driving part, and the first adsorption assembly 62 is connected to the driving end of the lifting driving part. The translation driving part is used to drive the first adsorption assembly 62 to translate, and the lifting driving part is used to drive the first adsorption assembly 62 to lift. The first adsorption assembly 62 can be, for example, a plurality of interval arranged suction cups, which cooperate to adsorb the bent busbar or the flat busbar.

[0080] Of course, other structures of carrying mechanisms capable of carrying the busbar can also be used as the first carrying mechanism 6, such as a suction assembly driven by a robot arm, etc.

[0081] Optionally, the first carrying mechanism 6 comprises two first adsorption assemblies 62 connected side by side on the driving end of the first driving module 61. The carrying process of the first carrying mechanism 6 is as follows: first, the first driving module 61 drives the two first adsorption assemblies 62 above the first preparation mechanism 1, one of the first adsorption assemblies 62 adsorbs a bent busbar from the first preparation mechanism 1. Then, the first driving module 61 drives the two first adsorption assemblies 62 above the second carrying mechanism 4, one of the first adsorption assemblies 62 releases the bent busbar onto the second carrying table 41, and the other first adsorption assembly 62 can synchronously adsorb a flat busbar from the first buffer table 42. Finally, the first driving module 61 drives the two first adsorption assemblies 62 above the first carrying mechanism 3, and the other first adsorption assembly 62 releases the flat busbar onto the first carrying table 31.

[0082] It can be seen that by arranging two first adsorption assemblies 62, the first carrying mechanism 6 can adsorb a flat busbar from the first buffer table 42 while carrying the bent busbar on the first preparation mechanism 1 to the second carrying table 41, thereby improving the carrying efficiency of the first carrying mechanism 6 on the busbar.

[0083] Of course, in order to save equipment cost, the first carrying mechanism 6 can also comprise only one first adsorption assembly 62, in which case the first carrying mechanism 6 adsorbs a flat busbar from the first buffer table 42 after carrying the bent busbar on the first preparation mechanism 1 to the second carrying table 41, and carries the flat busbar to the first carrying table 31.

[0084] As shown in FIG. 7, optionally, the second carrying mechanism 7 comprises a second driving module 71 and at least one second adsorption assembly 72, wherein: the second adsorption assembly 72 is connected on the driving end of the second driving module 71, and the second driving module 71 is configured to drive the second adsorption assembly 72 to translate and lift. The second adsorption assembly 72 is configured to adsorb a flat busbar from the second preparation mechanism 2 under the drive of the second driving module 71, and carry the adsorbed flat busbar to the third carrying table 51 or the second buffer table 52.

[0085] The second driving module 71 can adopt various existing driving modules capable of driving the second adsorption assembly 72 to translate and lift, for example, the second driving module 71 comprises a translation driving part and a lifting driving part, wherein the lifting driving part is connected on the driving end of the translation driving part, and the second adsorption assembly 72 is connected on the driving end of the lifting driving part. The translation driving part is used to drive the second adsorption assembly 72 to translate, and the lifting driving part is used to drive the second adsorption assembly 72 to lift. The second adsorption assembly 72 can comprise, for example, a plurality of suction cups arranged at intervals, and the plurality of suction cups cooperate to adsorb a flat busbar.

[0086] Of course, other structures of carrying mechanisms capable of carrying the bus bars can also be used as the second carrying mechanism 7, such as a suction assembly driven by a robot arm, etc.

[0087] Optionally, the second carrying mechanism 7 includes two second suction assemblies 72 connected side by side on the driving end of the second driving module 71, and the two second suction assemblies 72 are configured to respectively suck a flat bus bar from the second preparation mechanism 2 and carry the sucked flat bus bar to the third carrying table 51 and the second buffer table 52 respectively.

[0088] By arranging two second suction assemblies 72, the second carrying mechanism 7 can carry two groups of flat bus bars to the third carrying table 51 and the second buffer table 52 respectively after sucking the two groups of flat bus bars from the second preparation mechanism 3, thereby improving the carrying efficiency of the second carrying mechanism 7 for the bus bars, wherein the number of flat bus bars in each group is determined according to the number of bus bars to be welded in the current round, and can be one, two or more.

[0089] Of course, in order to save equipment costs, the second carrying mechanism 7 can also include only one second suction assembly 72, in which case the second carrying mechanism 7 sucks one group of flat bus bars from the second preparation mechanism 3 twice respectively and carries the sucked flat bus bars to the third carrying table 51 and the second buffer table 52 respectively.

[0090] Optionally, the table surface of the first buffer table 42 and the second buffer table 52 is provided with a first suction hole and a positioning pin assembly, wherein the positioning pin assembly includes a first positioning pin and a second positioning pin arranged at intervals, and the distance between the first positioning pin and the second positioning pin matches the width of the flat bus bar. The first suction hole can adsorb and fix the flat bus bar buffered on the first buffer table 42 or the second buffer table 52 on the first buffer table 42 or the second buffer table 52, and the first positioning pin and the second positioning pin can limit the flat bus bar buffered on the first buffer table 42 or the second buffer table 52 from both sides to prevent the flat bus bar from falling or being offset.

[0091] Optionally, the table surface of the first carrying table 31, the second carrying table 41 and the third carrying table 51 is provided with a second suction hole, and the first carrying table 31, the second carrying table 41 and the third carrying table 51 can adsorb and fix the bent bus bar or the flat bus bar carried thereon through the second suction hole thereon.

[0092] As shown in FIGS. 1-5, optionally, the busbar preparation device in the embodiment of the present application further comprises a slide rail 9 arranged along the first horizontal direction. The first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 are all slidingly connected to the slide rail 9 and can slide along the slide rail 9 to adjust the position in the first horizontal direction. Before the busbar welding is implemented, by controlling the first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 to slide along the slide rail 9, it can be ensured that the straight busbar carried by the first carrying mechanism 3 and the third carrying mechanism 5 is respectively located below the remaining welding strip at the first end and the second end of the battery string assembly, and the bent busbar carried by the second carrying mechanism 4 is located below the remaining welding strip at the middle of the battery string assembly. In addition, since the first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 all slide along the slide rail 9, it can be ensured that the first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 are aligned in the first horizontal direction.

[0093] Optionally, the first carrying mechanism 3, the second carrying mechanism 4 and the third carrying mechanism 5 are all driven by independent driving mechanisms to realize independent sliding on the slide rail 9.

[0094] Optionally, the transfer mechanism 8 is also slidingly connected to the slide rail 9, so that the transfer mechanism 8 can stably slide along the slide rail 9 to realize the reciprocating movement between the second preparation mechanism 2 and the second carrying mechanism 3. Optionally, as shown in FIG. 1, the transfer mechanism 8 comprises a driving part (not shown in the figure), a base 81, a frame 82 and a plurality of suction cups 83 arranged on the frame 82. The base 81 is slidingly connected to the slide rail 9 and connected to the driving end of the driving part. When the driving part drives the base to move to the third carrying mechanism 5, the second buffer table 52 enters the frame 82, and the plurality of suction cups 83 on the frame 82 suck the straight busbar on the second buffer table 52. When the driving part drives the base to move to the second carrying mechanism 4, the first buffer table 42 enters the frame 82, and the plurality of suction cups 83 on the frame 82 release the sucked straight busbar to the first buffer table 42.

[0095] Optionally, the first carrying mechanism 3 further comprises a first lifting driving module for driving the first carrying table 31 to lift. The second carrying mechanism 4 further comprises a second lifting driving module for driving the second carrying table 41 to lift. The third carrying mechanism 5 further comprises a third lifting driving module for driving the third carrying table 51 to lift. The first lifting driving module, the second lifting driving module and the third lifting driving module can all adopt various existing linear driving modules, such as pneumatic cylinder driving modules, electric cylinder driving modules, etc.

[0096] The battery string assembly to be welded is moved above the busbar preparation device, and the flat busbars on the first bearing mechanism 3 and the third bearing mechanism 5 are respectively located below the long weld strips at the first end and the second end of the battery string assembly, and the bent busbar on the second bearing mechanism 4 is located below the long weld strip in the middle of the battery string assembly. The first bearing table 31 is driven to rise by the first lifting drive module, so that the flat busbar located on the first bearing table 31 is attached to the long weld strip at the first end of the battery string assembly. The second bearing table 41 is driven to rise by the second lifting drive module, so that the bent busbar located on the second bearing table 41 is attached to the long weld strip in the middle of the battery string assembly. The third bearing table 51 is driven to rise by the third lifting drive module, so that the flat busbar located on the third bearing table 51 is attached to the long weld strip at the second end of the battery string assembly. In this way, it can be ensured that the welding mechanism can weld the busbar to the corresponding long weld strip.

[0097] As shown in FIG. 1, optionally, the first buffer table 42 and the second buffer table 52 are arranged adjacent to each other, and the transfer mechanism 8 is arranged between the first buffer table 42 and the second buffer table 52.

[0098] In this way, the transfer mechanism 8 can pick up the flat busbar to be welded in the next round from the second buffer table 52 while the busbars on the three bearing tables are being welded, and carry the picked flat busbar to the first buffer table 42. The transfer mechanism 8 does not interfere with the welding of the busbars on the second bearing table 41 and the third bearing table 51 when it is transferred. After the welding is completed, the first carrying mechanism 6 can carry the flat busbar on the first buffer table 42 to the first bearing table 31, ensuring timely supply of the busbar on the first bearing table 31, thereby ensuring the working rhythm and improving the welding efficiency of the busbar.

[0099] The application also provides a busbar welding device, which comprises the busbar preparation device, the welding and picking device, and the welding device provided in any of the above embodiments, wherein:

[0100] The welding and picking device is configured to pick up the battery string assembly to be welded and deliver it above the busbar preparation device. The first bearing table 31 is used to deliver the carried flat busbar below the long weld strip at the first end of the battery string assembly. The second bearing table 41 is used to deliver the carried bent busbar below the long weld strip in the middle of the battery string assembly. The third bearing table 51 is used to deliver the carried flat busbar below the long weld strip at the second end of the battery string assembly.

[0101] The welding device is configured to weld the flat bus bar located on the first carrying table 31 to the remaining welding strip at the first end of the battery string assembly, weld the bent bus bar located on the second carrying table 41 to the remaining welding strip at the middle of the battery string assembly, and weld the flat bus bar located on the third carrying table 51 to the remaining welding strip at the second end of the battery string assembly.

[0102] It can be seen that the bus bar preparation device realizes the preparation of the bus bar, and realizes the carrying movement and welding support of the bus bar. The welding pickup device realizes the movement of the battery string assembly to be welded to the upper side of the bus bar preparation device. The welding device realizes the welding of the bus bar to the remaining welding strip of the battery string assembly. When the welding device welds the bus bar, the bus bar preparation device can simultaneously prepare and transport the bus bar, thereby improving the welding efficiency of the bus bar.

[0103] In an optional embodiment, the welding device includes a first welding mechanism, a second welding mechanism, and a third welding mechanism, wherein: the first welding mechanism is arranged above the first carrying table 31 and is configured to weld the flat bus bar located on the first carrying table 31 to the remaining welding strip at the first end of the battery string assembly. The second welding mechanism is arranged above the second carrying table 41 and is configured to weld the bent bus bar located on the second carrying table 41 to the remaining welding strip at the middle of the battery string assembly. The third welding mechanism is arranged above the third carrying table and is configured to weld the flat bus bar located on the third carrying table 51 to the remaining welding strip at the second end of the battery string assembly.

[0104] By arranging the welding device to include a first welding mechanism, a second welding mechanism, and a third welding mechanism, the welding device can simultaneously weld the bus bar to the remaining welding strip at the first end, the second end of the battery string assembly, and the remaining welding strip at the middle of the battery string assembly, thereby improving the welding efficiency of the bus bar.

[0105] The first welding mechanism, the second welding mechanism, and the third welding mechanism can adopt various structures of existing bus bar welding mechanisms. For example, taking the first welding mechanism as an example, a liftable hot-pressing welding head is adopted. During welding, the hot-pressing welding head is lowered to press the remaining welding strip at the first end of the battery string assembly downwardly to the flat bus bar located on the first carrying table 31 and perform heating, so that the flat bus bar is welded to the remaining welding strip. Alternatively, taking the first welding mechanism as an example, it includes a pressing part and a laser welding head, wherein the pressing part is used to press the remaining welding strip at the first end of the battery string assembly downwardly to the flat bus bar located on the first carrying table 31, and the laser welding head is used to perform laser welding on the pressed remaining welding strip and flat bus bar, so that the flat bus bar is welded to the remaining welding strip.

[0106] In another alternative embodiment, the welding device comprises a first heating mechanism, a second heating mechanism, and a third heating mechanism, wherein the first heating mechanism is disposed in the first carrier table 31. The second heating mechanism is disposed in the second carrier table 41. The third heating mechanism is disposed in the third carrier table 51. The busbar welding apparatus further comprises a pressing device, which comprises a first pressing mechanism disposed above the first carrier table 31, a second pressing mechanism disposed above the second carrier table 41, and a third pressing mechanism disposed above the third carrier table 51. The first pressing mechanism is configured to press the overlength welding straps at the first end of the battery string assembly against the flat busbar on the first carrier table 31, and the first heating mechanism is configured to heat the flat busbar pressed on the first carrier table 31 to weld the flat busbar to the overlength welding straps at the first end of the battery string assembly. The second pressing mechanism is configured to press the overlength welding straps at the middle of the battery string assembly against the bent busbar on the second carrier table 41, and the second heating mechanism is configured to heat the bent busbar pressed on the second carrier table 41 to weld the bent busbar to the overlength welding straps at the middle of the battery string assembly. The third pressing mechanism is configured to press the overlength welding straps at the second end of the battery string assembly against the flat busbar on the third carrier table 51, and the third heating mechanism is configured to heat the flat busbar pressed on the third carrier table 51 to weld the flat busbar to the overlength welding straps at the second end of the battery string assembly.

[0107] By disposing the welding device to comprise the first heating mechanism, the second heating mechanism, and the third heating mechanism, the welding device is capable of synchronously welding the busbar to the overlength welding straps at the first end, the second end of the battery string assembly, and the overlength welding straps at the middle of the battery string assembly, thereby improving the welding efficiency of the busbar. In addition, since the first heating mechanism, the second heating mechanism, and the third heating mechanism are respectively disposed in the first carrier table 31, the second carrier table 32, and the third carrier table 33, the heating of the busbar can be performed from below the busbar, thereby avoiding direct contact with the overlength welding straps on the battery string assembly and thus avoiding damage to the overlength welding straps.

[0108] The first heating mechanism, the second heating mechanism, and the third heating mechanism may, for example, heat the busbar by electromagnetic heating.

[0109] The above has described the present application in sufficient detail with certain particularity. It should be apparent to those having ordinary skill in the art that the description in the embodiments is merely exemplary, and all changes that do not depart from the true spirit and scope of the present application should belong to the protection scope of the present application. The scope of protection claimed by the present application is defined by the claims, rather than the above description of the embodiments.

Claims

1. A busbar production apparatus characterized by comprising: The bus bar preparation device comprises a first preparation mechanism, a second preparation mechanism, a first carrying mechanism, a second carrying mechanism, a third carrying mechanism, a first conveying mechanism, a second conveying mechanism and a transferring mechanism, wherein: The first carrying mechanism, the second carrying mechanism and the third carrying mechanism are sequentially and spacedly arranged along a first horizontal direction and are movable along the first horizontal direction, respectively, wherein the first carrying mechanism comprises a first carrying table, the second carrying mechanism comprises a second carrying table and a first buffer table, and the third carrying mechanism comprises a third carrying table and a second buffer table; The first preparation mechanism is arranged at the side of the first carrying mechanism and is configured to prepare a bent bus bar, and the first conveying mechanism is configured to convey the bent bus bar prepared by the first preparation mechanism to the second carrying table; The second preparation mechanism is arranged at the side of the third carrying mechanism and is configured to prepare a straight bus bar, and the second conveying mechanism is configured to convey the straight bus bar prepared by the second preparation mechanism to the third carrying table or the second buffer table; The transferring mechanism is arranged between the third carrying mechanism and the second carrying mechanism and is configured to pick up the straight bus bar buffered on the second buffer table and convey the picked-up straight bus bar to the first buffer table; The first conveying mechanism is further configured to pick up the straight bus bar buffered on the first buffer table and convey the picked-up straight bus bar to the first carrying table.

2. The bus bar preparation apparatus according to claim 1, wherein The first conveying mechanism comprises a first driving module and at least one first suction assembly, wherein: The first suction assembly is connected to the driving end of the first driving module, and the first driving module is configured to drive the first suction assembly to translate and lift; The first suction assembly is configured to, under the driving of the first driving module, suck the bent bus bar from the first preparation mechanism and convey the sucked bent bus bar to the second carrying table, and suck the straight bus bar from the first buffer table and convey the sucked straight bus bar to the first carrying table.

3. The bus bar preparation apparatus of claim 2, wherein The first conveying mechanism comprises two first suction assemblies connected side by side to the driving end of the first driving module, wherein one of the first suction assemblies releases the bent bus bar sucked from the first preparation mechanism to the second carrying table, and the other first suction assembly sucks the straight bus bar from the first buffer table.

4. The bus bar preparation apparatus of claim 1, wherein The second conveying mechanism comprises a second driving module and at least one second suction assembly, wherein: The second suction assembly is connected to the driving end of the second driving module, and the second driving module is configured to drive the second suction assembly to translate and lift; The second suction assembly is configured to, under the driving of the second driving module, suck the straight bus bar from the second preparation mechanism and convey the sucked straight bus bar to the third carrying table or the second buffer table.

5. The bus bar preparation apparatus of claim 4, wherein The second carrying mechanism comprises two second adsorption assemblies connected side by side to the driving end of the second driving module, and the two second adsorption assemblies are configured to respectively adsorb a flat busbar from the second preparation mechanism and carry the adsorbed flat busbar to the third carrying table and the second buffer table respectively.

6. The bus bar preparation apparatus of claim 1, wherein The first buffer table and the second buffer table are provided with first adsorption holes and positioning pin assemblies on the table top, wherein the positioning pin assembly comprises a first positioning pin and a second positioning pin arranged at intervals, and the distance between the first positioning pin and the second positioning pin matches the width of the flat busbar.

7. The bus bar preparation apparatus of claim 1, wherein The first carrying table, the second carrying table and the third carrying table are provided with second adsorption holes on the table top.

8. The bus bar preparation apparatus of claim 1, wherein The busbar preparation device further comprises a slide rail arranged in the first horizontal direction. The first carrying mechanism, the second carrying mechanism and the third carrying mechanism are all slidingly connected to the slide rail and can slide along the slide rail to adjust the position in the first horizontal direction; or the first carrying mechanism, the second carrying mechanism, the third carrying mechanism and the transfer mechanism are all slidingly connected to the slide rail and can slide along the slide rail to adjust the position in the first horizontal direction.

9. The bus bar preparation apparatus of claim 8, wherein The transfer mechanism comprises a driving part, a base, a frame and a plurality of suction cups arranged on the frame, and the base is slidingly connected to the slide rail and connected to the driving end of the driving part.

10. The busbar preparation device of claim 9, wherein: when the driving part drives the base to move to the third carrying mechanism, the second buffer table enters the frame, and the plurality of suction cups on the frame adsorb the flat busbar on the second buffer table; when the driving part drives the base to move to the second carrying mechanism, the first buffer table enters the frame, and the plurality of suction cups on the frame release the adsorbed flat busbar to the first buffer table.

11. The bus bar preparation apparatus of claim 1, wherein The first carrying mechanism further comprises a first lifting driving module for driving the first carrying table to lift, the second carrying mechanism further comprises a second lifting driving module for driving the second carrying table to lift, and the third carrying mechanism further comprises a third lifting driving module for driving the third carrying table to lift.

12. The bus bar preparation apparatus of claim 1, wherein The first buffer table and the second buffer table are arranged adjacent to each other, and the transfer mechanism is arranged between the first buffer table and the second buffer table.

13. A busbar welding apparatus characterized by comprising: The busbar welding device comprises the busbar preparation device of any one of claims 1 to 12, a welding pickup device and a welding device, wherein: the welding pickup device is configured to pick up a battery string assembly to be welded and deliver it above the busbar preparation device, the first carrying table is used to deliver the carried flat busbar below the excess welding strip at the first end of the battery string assembly, the second carrying table is used to deliver the carried bent busbar below the excess welding strip at the middle of the battery string assembly, and the third carrying table is used to deliver the carried flat busbar below the excess welding strip at the second end of the battery string assembly; The welding device is configured to weld the flat bus bar on the first carrying table to the remaining welding strip at the first end of the battery string assembly, weld the bent bus bar on the second carrying table to the remaining welding strip at the middle of the battery string assembly, and weld the flat bus bar on the third carrying table to the remaining welding strip at the second end of the battery string assembly.

14. The bus bar welding apparatus of claim 13, wherein The welding device comprises a first welding mechanism, a second welding mechanism, and a third welding mechanism, wherein: The first welding mechanism is arranged above the first carrying table and is configured to weld the flat bus bar on the first carrying table to the remaining welding strip at the first end of the battery string assembly; The second welding mechanism is arranged above the second carrying table and is configured to weld the bent bus bar on the second carrying table to the remaining welding strip at the middle of the battery string assembly; The third welding mechanism is arranged above the third carrying table and is configured to weld the flat bus bar on the third carrying table to the remaining welding strip at the second end of the battery string assembly.

15. The bus bar welding apparatus of claim 13, wherein The welding device comprises a first heating mechanism, a second heating mechanism, and a third heating mechanism, wherein the first heating mechanism is arranged in the first carrying table, the second heating mechanism is arranged in the second carrying table, and the third heating mechanism is arranged in the third carrying table; The bus bar welding equipment further comprises a pressing device, which comprises a first pressing mechanism arranged above the first carrying table, a second pressing mechanism arranged above the second carrying table, and a third pressing mechanism arranged above the third carrying table; The first pressing mechanism is configured to press the remaining welding strip at the first end of the battery string assembly on the flat bus bar on the first carrying table, and the first heating mechanism is configured to heat the flat bus bar on the first carrying table to weld the flat bus bar on the remaining welding strip at the first end of the battery string assembly; The second pressing mechanism is configured to press the remaining welding strip at the middle of the battery string assembly on the bent bus bar on the second carrying table, and the second heating mechanism is configured to heat the bent bus bar on the second carrying table to weld the bent bus bar on the remaining welding strip at the middle of the battery string assembly; The third pressing mechanism is configured to press the remaining welding strip at the second end of the battery string assembly on the flat bus bar on the third carrying table, and the third heating mechanism is configured to heat the flat bus bar on the third carrying table to weld the flat bus bar on the remaining welding strip at the second end of the battery string assembly.

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