A BC cell series connection device

Abstract

The present invention discloses a BC battery cell series connection device, which comprises a feeding assembly, an insulating glue printing assembly, a solder paste printing assembly, a curing furnace, a dicing assembly, a UV printing and welding tape rack assembly, a series connection assembly and a series inspection assembly arranged in sequence; an inter-sheet film application assembly arranged on the side of the series connection assembly; the series connection assembly comprises a BC battery cell arrangement mechanism, a welding tape preparation mechanism and a welding tape conveying mechanism; the welding tape preparation mechanism comprises a translation assembly; a welding tape preparation assembly arranged on the translation assembly for transmission; a welding tape cutting assembly fixedly arranged on one side of the welding tape preparation assembly; the welding tape preparation assembly comprises a sliding mechanism, a first end clamping and cutting mechanism, a plurality of intermediate clamping and cutting structures and a second end clamping mechanism. The present invention effectively solves the problem that the series connection cost of existing BC battery cells is high and there is a certain risk of hidden cracks.

Description

Technical Field

[0001] The present invention relates to the technical field of series machines, and more particularly, to a BC cell series connection device. Background Art

[0002] In the existing BC cells, there are no main grid lines on the front side, and the positive and negative main grid lines are concentrated on the back side. There are several relatively large silver paste dots at each main grid line position; when welding the battery string, the BC cells are placed face up, and the welding tape is below the back side of the BC cells; heating is carried out through an infrared welding light box above the BC cells, and the heat diffuses to the back side through the BC cells, melting the solder of the welding tape in contact with the BC cell contacts on the back side to form a series connection between the welding tape and the BC cells. In the existing BC cell series welding technology, the silver consumption of the main grid lines and the large solder paste dots at the main grid line positions is relatively large, which is not conducive to reducing the cost of BC cells; since the welding tape is only laid on the back side of the BC cells, and the BC cells and the welding tape are alloyed in series through irradiation by an infrared lamp tube at high temperature, due to the inconsistent thermal expansion and contraction ratio between the welding tape and the BC cells, serious stress deformation of the BC cells occurs after the welding tape and the BC cells are alloyed at high temperature, and the risk of BC cell cracking increases significantly during the transportation and lamination of the battery string; therefore, a BC cell series connection device is provided to solve the above problems. Summary of the Invention

[0003] One of the purposes of the present invention is to provide a BC cell series connection device to facilitate solving the problems of relatively high series connection cost and certain cracking risk of existing BC cells.

[0004] A BC cell series connection device of the present invention can be realized by the following technical solutions:

[0005] A BC cell series connection device of the present invention includes a feeding component, an insulating glue printing component, a solder paste printing component, a curing furnace, a scribing component, a UV printing and welding tape rack component, a series connection component, and a series inspection component arranged in sequence; a sheet-to-sheet film pasting component arranged on the side of the series connection component;

[0006] Among them, the series connection component includes a BC cell row arrangement mechanism, a welding tape preparation mechanism, and a welding tape handling mechanism; the BC cell row arrangement mechanism is arranged on the side of the UV printing and welding tape rack component; the welding tape handling mechanism is arranged on the side of the BC cell row arrangement mechanism; the welding tape handling mechanism is arranged on the side of the BC cell row arrangement mechanism and the welding tape preparation mechanism, and it transports the welding tape prepared on the welding tape preparation mechanism to the BC cell row arrangement mechanism;

[0007] Among them, the solder strip preparation mechanism includes a translation component; a solder strip preparation component that is transmission-arranged on the translation component; a solder strip cutting component that is fixedly arranged on one side of the solder strip preparation component; the solder strip preparation component includes a sliding mechanism, which is transmission-connected to the translation component; a first end clamping and cutting mechanism that is fixedly arranged on the sliding mechanism, which is close to one side of the solder strip cutting component; a plurality of intermediate clamping and cutting structures and a second end clamping mechanism that are sequentially arranged on the sides of the first end clamping and cutting mechanism and are respectively movably arranged on the sliding mechanism.

[0008] In one embodiment, the inter-sheet film applying component includes an inter-sheet film unwinding mechanism, which is arranged on the side of the series component; a film cutting mechanism and a transfer adsorption platform are sequentially arranged on the side of the inter-sheet film unwinding mechanism; a film pulling clamping mechanism and an inter-sheet film handling robot are respectively arranged on the side of the transfer adsorption platform; the film pulling clamping mechanism pulls the inter-sheet film on the inter-sheet film unwinding mechanism, and the film cutting mechanism cuts the inter-sheet film in sections, and the whole string of inter-sheet films that have been cut are adsorbed and received by the transfer adsorption platform, and the inter-sheet film handling robot transports the whole string of inter-sheet films on the transfer adsorption platform to the series inspection component.

[0009] In one embodiment, the loading assembly includes a loading conveyor line; a plurality of BC battery cell loading mechanisms, a detection mechanism, and a first NG unloading mechanism are sequentially arranged on the side of the loading conveyor line.

[0010] In one embodiment, the insulating glue printing assembly includes a first feed conveyor line, which is connected to the rear end of the loading assembly; a first pre-positioning mechanism and an insulating glue printing platform respectively arranged on the sides of the first feed conveyor line; an insulating glue printing mechanism movably arranged above the insulating glue printing platform; a first discharge conveyor line arranged on the side of the insulating glue printing platform opposite to the first feed conveyor line; an insulating glue detection camera, a curing light box and a second NG unloading mechanism sequentially arranged on the sides of the first discharge conveyor line.

[0011] In one embodiment, the solder paste printing assembly includes a second feed conveyor line, a solder paste printing platform and a second discharge conveyor line which are arranged in sequence, the second feed conveyor line is connected and arranged at the rear end of the insulating glue printing assembly; a second pre-positioning mechanism is arranged on the side of the second feed conveyor line; a solder paste printing mechanism is movably arranged on the side of the solder paste printing platform; a solder paste detection camera and a third NG unloading mechanism are arranged in sequence on the side of the second discharge conveyor line.

[0012] In one embodiment, the slicing assembly includes a third feed conveyor line, which is connected and arranged at the rear end of the curing furnace; a first alignment mechanism and a first alignment camera are respectively arranged at the front end of the third feed conveyor line; a slicing platform is arranged on the other side of the third feed conveyor line opposite to the curing furnace; a laser mechanism is arranged above the slicing platform; a drying belt mechanism is arranged on the side of the slicing platform; a chip handling robot is arranged on the sides of the slicing platform and the drying belt mechanism; and an NG unloading mechanism, a chamfering rotation mechanism, and a discharge handling robot are respectively arranged on the sides of the drying belt mechanism.

[0013] In one embodiment, the UV printing and solder tape rack assembly includes a second alignment mechanism, which is arranged on one side of the slicing assembly; a second alignment camera fixedly arranged above the second alignment mechanism; a UV glue printing platform arranged on the side of the second alignment mechanism; a fork support mechanism movably arranged between the second alignment mechanism and the UV glue printing platform; a UV glue printing mechanism arranged above the UV glue printing platform; a fourth discharge conveyor line, a solder tape unwinding mechanism and a solder tape floating tensioning mechanism respectively arranged on one side of the UV glue printing platform.

[0014] In one embodiment, the BC battery cell arrangement mechanism includes a BC battery cell handling robot and an imaging belt respectively arranged on the sides of the UV printing and welding belt rack assembly; a second positioning camera and an arrangement machine respectively arranged at the ends of the imaging belt; an arrangement platform arranged in parallel on the side of the imaging belt; a series transmission line arranged on the side of the imaging belt and in the same straight line as the imaging belt; and a string handling robot arranged on the side of the series transmission line.

[0015] In one embodiment, the solder strip transport mechanism includes a lateral motion component, which is arranged on the side of the solder strip preparation mechanism; a lifting motion component slidably arranged on the lateral motion component; and a clamping and pressing component arranged below the lifting motion component.

[0016] In one embodiment, the clamping and pressing assembly includes a supporting mechanism, which is fixedly connected to the lifting and moving assembly; a clamping claw driving mechanism rotatably arranged on the supporting mechanism; a plurality of welding strip clamping mechanisms fixedly arranged in sequence below the supporting mechanism and respectively connected to the clamping claw driving mechanism in transmission; a second welding strip pressing mechanism movably arranged on the plurality of welding strip clamping mechanisms; and a plurality of pressing mechanisms respectively arranged on the supporting mechanism and respectively connected to the second welding strip pressing mechanisms in transmission.

[0017] Compared with the prior art, the beneficial effects of the BC battery cell series connection device of the present invention are:

[0018] A BC cell series connection device of the present invention cancels the main grid and large solder pads of the BC cell, which can greatly reduce the silver paste usage of the BC cell, thereby reducing the cost and increasing the efficiency of the module; the solder tape is adhered to the BC cell in series through UV glue, and through the alloying welding of the solder tape and the sub-grid line of the BC cell, the bending deformation of the cell can be greatly reduced, and the risk of module microcracks can be reduced, effectively solving the problems of high series connection cost and certain microcrack risk of the existing BC cells.

[0019] A BC cell series connection device of the present invention can transport the solder tape required for a series of BC cells at one time. The opening distance of its solder tape clamping jaw structure can be uniformly adjusted by driving the rotation angle of the transmission shaft by a motor, with high consistency, and there will be no situation where a certain solder tape cannot be clamped stably due to different opening and closing distances of the clamping jaws. With the method of clamping both ends of a solder tape, it can prevent the deflection of the solder tape while clamping the flat solder tape, and the solder tape transportation process is stable; through cooperation with the solder tape pressing mechanism, the solder tape can be flattened when aligned with the grid line of the BC cell, avoiding the situation of solder tape grid deviation when the clamping jaw is released; at the same time, the number of solder tape clamping jaw structures can be increased or decreased according to the number of cells in the BC cell string, and the efficiency of switching the plate type is high; the clamping and pressing assembly cooperates with the lateral movement assembly and the lifting movement assembly, and the alignment accuracy of the solder tape and the grid line of the BC cell is high, effectively avoiding the situation of solder tape grid deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional structural schematic diagram of a BC cell series connection device of the present invention, including a loading component, an insulating glue printing component, a solder paste printing component, a scribing component, a UV printing and solder tape rack component, a series connection component, an inter-sheet film pasting component, and a string inspection component;

[0022] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the shown loading component;

[0023] Figure 3 is Figure 1 a structural schematic diagram of the shown insulating glue printing component;

[0024] Figure 4 is Figure 1 a structural schematic diagram of the shown solder paste printing component;

[0025] Figure 5 isFigure 1 Schematic structural diagram of the scribing component shown

[0026] Figure 6 is Figure 1 Schematic structural diagram of the UV printing and solder tape holder component shown

[0027] Figure 7 is Figure 1 Schematic structural diagram of the series connection component shown, including a solder tape preparation mechanism and a solder tape transfer mechanism

[0028] Figure 8 is Figure 7 Schematic structural diagram of the solder tape preparation mechanism shown, including a solder tape preparation component

[0029] Figure 9 is Figure 8 Schematic structural diagram of the solder tape preparation component shown, including a first-end clamping and cutting mechanism

[0030] Figure 10 is the exploded structural diagram of the first-end clamping and cutting mechanism shown in 9, including a cutting structure

[0031] Figure 11 is Figure 10 Schematic structural diagram of the cutting structure shown

[0032] Figure 12 is Figure 7 Schematic structural diagram of the solder tape transfer mechanism shown, including a solder tape clamping mechanism and a second solder tape pressing mechanism

[0033] Figure 13 is Figure 12 Partial exploded structural diagram of the solder tape clamping mechanism and the second solder tape pressing mechanism shown

[0034] Figure 14 is Figure 1 Schematic structural diagram of the inter-chip film application component shown

[0035] Figure 15 is Figure 1 Schematic structural diagram of the series inspection component shown

[0036] Markings in the figure: 10, loading component; 11, loading conveyor line; 12, BC cell loading mechanism; 121, cartridge conveyor line; 122, loading handling structure; 13, detection mechanism; 131, front appearance detection structure; 132, back PL detection structure; 133, polarity detection structure; 14, first NG unloading mechanism; 20, insulating glue printing component; 21, first feeding conveyor line; 22, first pre-positioning mechanism; 221, pre-positioning structure; 222, pre-positioning camera; 223, first positioning camera; 23, insulating glue printing platform; 24, insulating glue printing mechanism; 25, insulating glue detection camera; 26, curing light box; 27, second NG unloading mechanism; 28, first discharging conveyor line; 30, solder paste printing component; 31, second feeding conveyor line; 32, second pre-positioning mechanism; 33, solder paste printing platform; 34, solder paste printing mechanism; 35, solder paste detection camera; 36, third NG unloading mechanism; 37, second discharging conveyor line; 40, curing furnace; 50, scribing component; 501, third feeding conveyor line; 502, first alignment mechanism; 503, first alignment camera; 504, scribing platform; 505, laser mechanism; 506, chip handling manipulator; 507, fourth NG unloading mechanism; 508, drying belt mechanism; 509, chamfering rotation mechanism; 510, discharging handling manipulator; 511, third discharging conveyor line; 60, UV printing and solder strip rack component; 61, fork support mechanism; 62, second alignment camera; 63, second alignment mechanism; 64, UV glue printing platform; 65, UV glue printing mechanism; 66, UV glue detection camera; 67, fourth discharging conveyor line; 68, solder strip unwinding mechanism; 69, solder strip floating tensioning mechanism; 70, series connection component; 71, BC cell row arrangement mechanism; 711, BC cell handling manipulator; 712, imaging belt; 713, second positioning camera; 714, row arrangement robot; 715, row arrangement platform; 716, series connection handling manipulator; 717, series connection transmission line; 72, first solder strip pressing mechanism; 73, solder strip traction mechanism; 74, solder strip preparation mechanism; 741, translation component; 742, solder strip preparation component; 7421, sliding mechanism; 7422, first end clamping and cutting mechanism; 74221, support frame; 74222, clamping structure; 74223, cutting structure; 742231, fixed seat; 742232, push-pull cylinder; 742233, lifting cylinder; 742234, pressing cutter head; 742235, cutting cutter head; 7423, intermediate clamping and cutting structure; 7424, second end clamping mechanism; 75, solder strip handling mechanism; 751, lateral movement component; 752, lifting movement component; 753, clamping and pressing component; 7531, support mechanism; 7532, jaw drive mechanism; 75321, jaw drive motor; 75322, transmission shaft; 75323, support bearing; 7533, solder strip clamping mechanism; 7534, second solder strip pressing mechanism; 7535, pressing-down mechanism;75351, support structure; 75352, telescopic cylinder; 75353, downward pressure rod structure; 75354, limit screw; 76, first UV curing lamp box; 77, back string detection camera; 80, inter-chip film pasting assembly; 81, inter-chip film unwinding mechanism; 82, film clamping jaw mechanism; 83, film cutting mechanism; 84, transfer adsorption platform; 85, inter-chip film handling robot; 90, string inspection assembly; 91, string inspection feeding conveyor line; 92, second UV curing lamp box; 93, string inspection handling robot; 94, front string inspection camera mechanism; 95, string output conveyor line; Detailed implementation mode

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention described and shown in the drawings here are usually arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0039] Please refer to Figure 1 As shown, a BC cell series connection device of the present invention mainly includes a feeding assembly 10, an insulating glue printing assembly 20, a solder paste printing assembly 30, a curing furnace 40, a scribing assembly 50, a UV printing and solder tape rack assembly 60, a series connection assembly 70, and a string inspection assembly 90 arranged in sequence; the inter-chip film pasting assembly 80 is arranged on the side of the series connection assembly 70, and it performs the operation of pasting an inter-chip film on the gap between two adjacent BC cells on the series connection assembly 70 in sequence.

[0040] Please refer to Figure 1 and Figure 2As shown in the figure, the loading component 10 includes a loading conveyor line 11, a plurality of BC cell loading mechanisms 12, a detection mechanism 13, and a first NG unloading mechanism 14; the loading conveyor line 11 is the main body for BC cell conveyance; the plurality of BC cell loading mechanisms 12, the detection mechanism 13, and the first NG unloading mechanism 14 are sequentially arranged on the side of the loading conveyor line 11. The plurality of BC cell loading mechanisms 12 respectively transfer the BC cells in the material boxes to the loading conveyor line 11. The detection mechanism 13 sequentially performs detection operations on the BC cells conveyed to its lower side by the loading conveyor line 11. The first NG unloading mechanism 14 transfers the BC cells detected as NG by the detection mechanism 13 from the loading conveyor line 11. In this embodiment, three BC cell loading mechanisms 12 are sequentially arranged at the front end of the loading conveyor line 11; the BC cell loading mechanism 12 includes a material box conveyor line 121 and a loading handling structure 122. The material box conveyor line 121 is vertically arranged below the loading conveyor line 11 and conveys the material boxes. The loading handling structure 122 transfers the BC cells in the material boxes on the material box conveyor line 121 to the loading conveyor line 11. Specifically, the detection mechanism 13 includes a front appearance detection structure 131, a back PL detection structure 132, and a polarity detection structure 133 that are sequentially arranged at the rear end of the plurality of BC cell loading mechanisms 12, and they respectively perform front appearance detection, PL detection, and polarity detection on the BC cells on the loading conveyor line 11.

[0041] Please refer to Figure 1 and Figure 3As shown, in this embodiment, the insulating glue printing assembly 20 includes a first feeding conveyor line 21, a first pre-positioning mechanism 22, an insulating glue printing platform 23, an insulating glue printing mechanism 24, an insulating glue detection camera 25, a curing light box 26, a second NG unloading mechanism 27 and a first unloading conveyor line 28; the first feeding conveyor line 21 is docked with the loading conveyor line 11; the first pre-positioning mechanism 22 is arranged on the side of the first feeding conveyor line 21, and it performs a pre-positioning operation on the BC battery cell on the first feeding conveyor line 21; the insulating glue printing platform 23 is arranged on one side of the first feeding conveyor line 21, and it performs a pre-positioning operation on the BC battery cell transmitted from the first feeding conveyor line 21 The BC battery cells are precisely aligned and compensated; the insulating glue printing mechanism 24 is movably arranged above the insulating glue printing platform 23, and it prints insulating glue on the BC battery cells on the insulating glue printing platform 23; the first discharge conveyor line 28 is arranged on the other side of the insulating glue printing platform 23 and is opposite to the first feed conveyor line 21, and it conveys the BC battery cells printed with insulating glue, and the insulating glue detection camera 25, the curing light box 26, and the second NG unloading mechanism 27 are sequentially arranged on the side of the first discharge conveyor line 28, which respectively perform insulating glue detection, curing, and NG unloading operations on the BC battery cells on the first discharge conveyor line 28. Specifically, the first pre-positioning mechanism 22 includes a pre-positioning structure 221, a pre-positioning camera 222 and a first positioning camera 223; the pre-positioning structure 221 is movably arranged below the first feeding conveyor line 21, and the pre-positioning camera 222 is fixedly arranged above the pre-positioning structure 221, and the two cooperate to perform pre-positioning operations on the BC battery cells of the first feeding conveyor line 21. The first positioning camera 223 is arranged at the rear end of the pre-positioning camera 222, which accurately takes pictures of the BC battery cells on the insulating glue printing platform 23, and then the insulating glue printing platform 23 accurately compensates for the BC battery cells.

[0042] See also Figure 1 and Figure 4 As shown, in this embodiment, the solder paste printing assembly 30 includes a second feeding conveyor line 31, a solder paste printing platform 33 and a second discharging conveyor line 37 which are arranged in sequence, and the second feeding conveyor line 31 is docked with the first discharging conveyor line 28; the second pre-positioning mechanism 32 is arranged on the side of the second feeding conveyor line 31; the solder paste printing mechanism 34 is movably arranged on the side of the solder paste printing platform 33, and performs solder paste printing operations on the BC battery cells positioned on the solder paste printing platform 33; the solder paste detection camera 35 and the third NG unloading mechanism 36 are arranged in sequence on the side of the second discharging conveyor line 37, and perform detection and NG unloading operations on the BC battery cells printed with solder paste on the second discharging conveyor line 37, respectively. Specifically, the structures of the second pre-positioning mechanism 32 and the solder paste printing platform 33 are similar to those of the first pre-positioning mechanism 22 and the insulating glue printing platform 23, respectively, so they are not repeated here.

[0043] See alsoFigure 1 As shown, in this embodiment, the curing furnace 40 includes a conveyor chain, a preheating mechanism, a thermosetting mechanism and a cooling mechanism; the conveyor chain is connected to the second discharge conveyor line 37; the preheating mechanism, the thermosetting mechanism and the cooling structure are arranged above the conveyor chain in sequence, the preheating mechanism preheats the solder paste on the BC battery cell, and then the thermosetting mechanism thermosets the solder paste on the BC battery cell at a constant temperature, and finally the cooling mechanism cools the BC battery cell and transmits it to the next station.

[0044] See also Figure 1 and Figure 5 As shown, in this embodiment, the dicing assembly 50 includes a third feeding conveyor line 501, a first alignment mechanism 502, a first alignment camera 503, a dicing platform 504, a laser mechanism 505, a splitting handling robot 506, a fourth NG unloading mechanism 507, a drying belt mechanism 508, a chamfering rotation mechanism 509, a discharging handling robot 510 and a third discharging conveyor line 511; the third feeding conveyor line 501 is docked with the conveying chain of the curing furnace 40; the first alignment mechanism 502 and the first alignment camera 503 are respectively arranged at the front end of the third feeding conveyor line 501, the first alignment mechanism 502 lifts the BC battery cell on the third feeding conveyor line 501, and the first alignment camera 503 takes pictures of the BC battery cell The first alignment mechanism 502 completes the alignment compensation; the scribing platform 504 is arranged on the other side of the third feeding conveyor line 501 opposite to the curing furnace 40, and the laser mechanism 505 is arranged above the scribing platform 504. The scribing platform 504 lifts the BC battery sheet after alignment compensation on the first alignment mechanism 502 and transfers it to the bottom of the laser mechanism 505 for scribing; the drying belt mechanism 508 is arranged on the side of the scribing platform 504, the chip handling robot 506 is arranged on the side of the scribing platform 504 and the drying belt mechanism 508, and the NG unloading mechanism 507 is arranged on the side of the drying belt mechanism 508. The BC battery sheet after scribing is split by the chip handling robot 506 and transported to the drying belt mechanism 508. The NG unloading mechanism 507 transports the BC battery cells that are NG, and the water on the surface of the OK BC battery cells is dried by the drying belt mechanism 508; the chamfering rotation mechanism 509 and the unloading and handling robot 510 are respectively arranged on the sides of the drying belt mechanism 508, and the dried BC battery cells are rotated 180° by the chamfering rotation mechanism 509, and the unloading and handling robot 510 transports the BC battery cells from the drying belt mechanism 508 to the third unloading conveyor line 511.

[0045] See also Figure 1 and Figure 6As shown, in this embodiment, the UV printing and solder tape holder assembly 60 includes a fork support mechanism 61, a second alignment camera 62, a second alignment mechanism 63, a UV glue printing platform 64, a UV glue printing mechanism 65, a UV glue detection camera 66, a fourth discharge conveyor line 67, a solder tape unwinding mechanism 68, and a solder tape floating tensioning mechanism 69; the second alignment mechanism 63 is arranged on one side of the dicing assembly 50, and it performs a jacking operation on the BC solar cells flowing in from the third discharge conveyor line 511; the second alignment camera 62 is fixedly arranged above the second alignment mechanism 63; the UV glue printing platform 64 is arranged on the side of the second alignment mechanism 63; the fork support mechanism 61 is movably arranged between the second alignment mechanism 63 and the UV glue printing platform 64. The second alignment camera 62 takes pictures of the BC solar cells on the second alignment mechanism 63, and the second alignment mechanism 63 adjusts the positions of the BC solar cells. The BC solar cells after alignment adjustment are transported to the UV glue printing platform 64 by the fork support mechanism 61; the UV glue printing mechanism 65 is arranged above the UV glue printing platform 64, and it prints UV glue on the BC solar cells on the UV glue printing platform 64; the fourth discharge conveyor line 67 is arranged on one side of the UV glue printing platform 64, and the UV glue detection camera 66 is arranged above the fourth discharge conveyor line 67. The fourth discharge conveyor line 67 transports the BC solar cells printed with UV glue on the UV glue printing platform 64 to the lower part of the UV glue detection camera 66 for taking pictures and detection, and the detected BC solar cells are then transported by the fourth discharge conveyor line 67 to the next working station; the solder tape unwinding mechanism 68 and the solder tape floating tensioning mechanism 69 are arranged in sequence on the side of the UV glue printing platform 64. The solder tape performs an active unwinding operation through the solder tape unwinding mechanism 68, and then the solder tape floating tensioning mechanism 69 performs a floating tensioning operation on the solder tape.

[0046] Please refer to Figure 1 and Figure 7As shown, in this embodiment, the series assembly 70 includes a BC battery cell arrangement mechanism 71, a first solder tape clamping mechanism 72, a solder tape traction mechanism 73, a solder tape preparation mechanism 74, a solder tape conveying mechanism 75, a first UV curing light box 76 and a back-side string detection camera 77; the BC battery cell arrangement mechanism 71 is connected to the fourth discharge conveyor line 67, and performs an arrangement operation on the BC battery cells arranged thereon; the first solder tape clamping mechanism 72, the solder tape traction mechanism 73, and the solder tape preparation mechanism 74 are sequentially arranged at the rear end of the solder tape floating tensioning mechanism 69 and are respectively arranged at the BC battery cell arrangement machine The structure 71 is provided on the side of the BC battery cell arrangement mechanism 71, which respectively compresses, pulls and prepares the solder strip; the solder strip conveying mechanism 75 is provided on the side of the BC battery cell arrangement mechanism 71 and the solder strip preparation mechanism 74, which transfers the solder strip prepared on the solder strip preparation mechanism 74 to the BC battery cell on the BC battery cell arrangement mechanism 71; the first UV curing light box 76 and the back string detection camera 77 are respectively arranged at the rear end of the BC battery cell arrangement mechanism 71, the first UV curing light box 76 performs preliminary curing operations on the BC battery cell and the solder strip, and the back string detection camera 77 performs detection operations on the cured BC battery string.

[0047] See also Figure 7 As shown, specifically, the BC battery cell arrangement mechanism 71 includes a BC battery cell handling manipulator 711, an imaging belt 712, a second positioning camera 713, an arrangement robot 714, an arrangement platform 715, a series handling manipulator 716 and a series transmission line 717; the BC battery cell handling manipulator 711 and the imaging belt 712 are respectively arranged on the side of the fourth unloading conveyor line 67, and the BC battery cell handling manipulator 711 transports the BC battery cells printed with UV glue from the fourth unloading conveyor line 67 to the imaging belt 712; the second positioning camera 713 and the arrangement robot 714 are respectively arranged at the ends of the imaging belt 712, and the arrangement platform 715 is arranged parallel to the side of the imaging belt 712, the second positioning camera 713 takes a photo to identify the coordinates of two BC battery cells at a time, and the arrangement robot 714 takes a photo to identify the coordinates of two BC battery cells at a time. After two photos are taken, the BC battery cells are respectively position-compensated and transferred to the arrangement platform 715 according to the photo results of the second positioning camera 713 until the whole string of BC battery cells is filled; the arrangement platform 715 filled with a whole string of BC battery cells is staggered to the side of the inter-sheet film applying component 80, and the inter-sheet film applying component 80 applies the whole string of inter-sheet films to the whole string of BC battery cells on the arrangement platform 715; the series transmission line 717 is arranged on the side of the image belt 712 and on the same straight line, and the string handling robot 716 is arranged on the side of the series transmission line 717, and the string handling robot 716 transports the whole string of BC battery cells with the inter-sheet film attached to the series transmission line 717, and then the handling mechanism 75 transfers the soldering tape prepared by the soldering tape preparation mechanism 74 and lays it on the whole string of BC battery cells on the series transmission line 717.

[0048] See alsoFigure 7 and Figure 8 As shown in Figure 8 , in this embodiment, the solder strip preparation mechanism 74 includes a translation assembly 741, a solder strip preparation assembly 742, and a solder strip cutting assembly 743; the solder strip preparation assembly 742 is drivingly arranged on the translation assembly 741, and the translation assembly 741 drives the solder strip preparation assembly 742 to reciprocate thereon; the solder strip cutting assembly 743 is fixedly arranged on one side of the solder strip preparation assembly 742, and it synchronously cuts multiple solder strips. Specifically, the translation assembly 741 uses a linear module.

[0049] Please refer to Figure 8 and Figure 9 As shown in Figure 9 , in this embodiment, the solder strip preparation assembly 742 includes a sliding mechanism 7421, a first-end clamping and cutting mechanism 7422, a plurality of intermediate clamping and cutting structures 7423, and a second-end clamping mechanism 7424; the sliding mechanism 7421 is drivingly connected to the translation assembly 741; the first-end clamping and cutting mechanism 7422 is fixedly arranged on the sliding mechanism 7421 and on the side close to the solder strip cutting assembly 743, and it can synchronously clamp and cut multiple solder strips; the plurality of intermediate clamping and cutting structures 7423 and the second-end clamping mechanism 7424 are sequentially arranged on the side of the first-end clamping and cutting mechanism 7422 and can be movably arranged on the sliding mechanism 7421 respectively. The intermediate clamping and cutting structure 7423 can synchronously clamp and cut multiple solder strips, and the second-end clamping mechanism 7424 can synchronously clamp multiple solder strips. Specifically, a guide rail and a rack are arranged on the sliding mechanism 7421, and the plurality of intermediate clamping and cutting structures 7423 and the second-end clamping mechanism 7424 are respectively slidably arranged on the guide rail; the plurality of intermediate clamping and cutting structures 7423 and the second-end clamping mechanism 7424 are respectively meshed and drivingly connected to the rack.

[0050] Please refer to Figure 9 and Figure 10 As shown in Figure 10 , in this embodiment, the first-end clamping and cutting mechanism 7422 includes a support frame 74221, a clamping structure 74222, and a cutting structure 74223; the support frame 74221 is fixedly arranged on the sliding mechanism 7421; the clamping structure 74222 and the cutting structure 74223 are sequentially fixedly arranged on the support frame 74221, and the clamping structure 74222 and the cutting structure 74223 are respectively used to clamp and cut multiple solder strips.

[0051] Please refer to Figure 9 - Figure 11As shown, in this embodiment, the cutting structure 74223 includes a fixed seat 742231, a push-pull cylinder 742232, a push-pull lifting cylinder 742233, a push-pull pressing blade head 742234 and a cutting blade head 742235; the fixed seat 742231 is fixedly arranged on the support frame 74221; the push-pull cylinder 742232 and the push-pull lifting cylinder 742233 are respectively fixedly arranged on the fixed seat 742231; the push-pull pressing blade head 742234 and the cutting blade head 742235 are respectively fixedly arranged on the fixed seat 742231; 42235 are movably arranged on the fixed seat 742231 and are respectively connected with the push-pull cylinder 742232 and the push-pull lifting cylinder 742233. The push-pull cylinder 742232 drives the push-pull pressing head 742234 to move horizontally, thereby pressing multiple welding strips to facilitate the cutting head 742235 to perform cutting operations. The push-pull lifting cylinder 742233 drives the cutting head 742235 to move upward, thereby cutting multiple welding strips.

[0052] See also Figure 7 and Figure 12 As shown, in this embodiment, the solder strip transport mechanism 75 includes a lateral motion component 751, a lifting motion component 752 and a clamping and pressing component 753; the lateral motion component 751 is arranged on the side of the solder strip preparation mechanism 74; the lifting motion component 752 is slidably arranged on the lateral motion component 751, and the lateral motion component 751 drives the lifting motion component 752 to move laterally; the clamping and pressing component 753 is arranged below the lifting motion component 752, which can clamp and press multiple prepared solder strips on the solder strip preparation platform, and then through the cooperation of the lateral motion component 751 and the lifting motion component 752, the multiple solder strips clamped by the clamping and pressing component 753 are transferred and laid on the whole string of BC battery cells on the series transmission line 717.

[0053] See also Figure 12 and Figure 13As shown, in this embodiment, the clamping and pressing assembly 753 includes a support mechanism 7531, a clamping claw driving mechanism 7532, a plurality of solder strip clamping mechanisms 7533, a second solder strip pressing mechanism 7534 and a plurality of pressing mechanisms 7535; the support mechanism 7531 is fixedly connected to the lifting and moving assembly 752; the clamping claw driving mechanism 7532 is rotatably arranged on the support mechanism 7531; the plurality of solder strip clamping mechanisms 7533 are sequentially fixedly arranged below the support mechanism 7531 and are respectively connected to the clamping claw driving mechanism 7532 by transmission. Then, the clamping claw driving mechanism 7532 synchronously drives the multiple solder strip clamping mechanisms 7533 to clamp or release the corresponding solder strips; the second solder strip clamping mechanism 7534 is movably arranged on the multiple solder strip clamping mechanisms 7533, and can synchronously clamp the multiple solder strips; the multiple pressing mechanisms 7535 are respectively arranged on the supporting mechanism 7531 and are respectively connected to the second solder strip clamping mechanism 7534, which drives the second solder strip clamping mechanism 7534 to move downward and synchronously clamp the multiple solder strips.

[0054] See also Figure 13 As shown, in this embodiment, the clamping jaw driving mechanism 7532 includes a clamping jaw driving motor 75321, a clamping jaw transmission shaft 75322 and at least one supporting bearing 75323; the clamping jaw driving motor 75321 is fixedly arranged on the supporting mechanism 7531, and can be rotated forward and reversely; the clamping jaw transmission shaft 75322 is rotatably arranged on both ends of the supporting mechanism 7531 and is transmission-connected with the clamping jaw driving motor 75321, and a plurality of welding strip clamping mechanisms 7533 are respectively transmission-connected with the clamping jaw transmission shaft 75322, and the clamping jaw driving motor 75321 drives the clamping jaw transmission shaft 75322 to change its angle on the supporting mechanism 7531, so that the plurality of welding strip clamping mechanisms 7533 synchronously clamp or release the corresponding welding strips; at least one supporting bearing 75323 is fixedly arranged on the supporting mechanism 7531, and the clamping jaw transmission shaft 75322 is rotationally arranged through at least one supporting bearing 75323, and the clamping jaw transmission shaft 75322 is supported by at least one supporting bearing 75323. Specifically, the clamping jaw transmission shaft 75322 adopts a flat rotating shaft.

[0055] See also Figure 13 As shown, in this embodiment, the welding strip clamping mechanism 7533 includes a connecting plate, which is fixedly connected to the bottom of the supporting mechanism 7531; two welding strip clamping claw structures symmetrically and slidably arranged on the opposite sides of the connecting plate; two transmission structures are respectively arranged above the connecting plate and respectively connected to the clamping claw transmission shaft 75322, and the two transmission structures are respectively connected to the corresponding welding strip clamping claw structures. The clamping claw drive motor 75321 drives the two welding strip clamping claw structures through the clamping claw transmission shaft 75322 and the two transmission structures in turn to synchronously clamp or release the corresponding welding strips.

[0056] See also Figure 13 As shown, in this embodiment, the second welding strip clamping mechanism 7534 includes a plurality of elastic pressure column structures, a plurality of pressure welding strip structures and two lower pressure plates; the plurality of elastic pressure column structures are respectively movably arranged on the corresponding support mechanism 7531; the plurality of pressure welding strip structures are respectively connected to the lower part of the corresponding elastic pressure column structure, and they perform a clamping operation on the welding strip arranged thereunder; the two lower pressure plates are arranged in parallel and are respectively fixedly arranged on the corresponding elastic pressure column structures, and the plurality of downward pressing mechanisms 7535 can synchronously perform a downward pressing operation on the two lower pressure plates, thereby driving the corresponding pressure welding strip structure to perform a clamping operation on the plurality of welding strips through the plurality of elastic pressure column structures. Specifically, the elastic pressure column structure includes a linear bearing, a pressure column body and a second elastic member, and the linear bearing is fixedly arranged on the support mechanism; the pressure column body movably passes through the linear bearing, one end of which is fixedly connected to the lower pressure plate, and the other end is fixedly connected to the pressure welding strip structure; the second elastic member is arranged between the pressure column body and the support mechanism, and it provides a restoring buffer force to the pressure column body.

[0057] See also Figure 13 As shown, in this embodiment, the pressing mechanism 7535 includes a supporting structure 75351, a telescopic cylinder 75352, a pressing rod structure 75353 and at least one limiting screw 75354; the supporting structure 75351 is fixedly arranged on the supporting mechanism 7531; the telescopic cylinder 75352 is fixedly arranged on the supporting structure 75351; the pressing rod structure 75353 is transmission-connected with the telescopic cylinder 75352 and movably penetrates the supporting structure 75351 to perform a pressing operation on the second welding strip clamping mechanism 7534 arranged thereunder; at least one limiting screw 75354 is adjustably penetrated on the pressing rod structure 75353 and can be contacted and connected with the supporting structure 75351 in a limiting manner.

[0058] See also Figure 1 and Figure 14 As shown, in this embodiment, the inter-sheet film applying component 80 includes an inter-sheet film unwinding mechanism 81, a film pulling clamping mechanism 82, a film cutting mechanism 83, a transfer adsorption platform 84 and an inter-sheet film handling robot 85; the inter-sheet film unwinding mechanism 81 is arranged on the side of the series component 70, and the inter-sheet film is passively unwound by the inter-sheet film unwinding mechanism 81; the film cutting mechanism 83 and the transfer adsorption platform 84 are arranged on the side of the inter-sheet film unwinding mechanism 81 in sequence; the film pulling clamping mechanism 82 and the inter-sheet film handling robot 85 are respectively arranged on the side of the transfer adsorption platform 84; the film pulling clamping mechanism 82 pulls the inter-sheet film from the inter-sheet film unwinding mechanism 81 to a certain length, and the film is cut into sections by the film cutting mechanism 83, and the whole string of inter-sheet film cut is adsorbed and received by the transfer adsorption platform 84, and the inter-sheet film handling robot 85 transports the whole string of inter-sheet film on the transfer adsorption platform 84 to the whole string of BC battery cells on the sheet arrangement platform 715.

[0059] See also Figure 1 and Figure 15 As shown, in this embodiment, the string inspection component 90 includes a string inspection feeding conveyor line 91, a second UV curing light box 92, a string inspection handling robot 93, a front string inspection camera mechanism 94 and a string out conveyor line 95; the string inspection feeding conveyor line 91 is docked with the series assembly 70, and the second UV curing light box 92 is arranged above the string inspection feeding conveyor line 91, which strengthens the curing of the UV glue on the BC battery string; the string inspection handling robot 93 is arranged at the end of the string inspection feeding conveyor line 91, the front string inspection camera mechanism 94 is arranged below the string inspection handling robot 93, and the string out conveyor line 95 is arranged parallel to the side of the string inspection feeding conveyor line 91, and the front string inspection camera mechanism 94 performs a photo inspection operation on the BC battery string adsorbed by the string inspection handling robot 93, and the BC battery string that is detected OK is transported by the string inspection handling robot 93 to the string out conveyor line 95 to flow out of the device; the BC battery string that is detected NG is transported by the string inspection handling robot 93 to the NG material box.

[0060] It should be noted that the specific working process of the BC battery cell series connection device of the present invention is as follows: the BC battery cells are loaded and separated and recycled by the loading component 10, and are transported to the insulating glue printing component 20 after the appearance inspection of the BC battery cells is completed; the insulating glue printing component 20 first adjusts the BC battery cell position for pre-photographing, and then adjusts the position for precise photographing, and after the position adjustment, the BC battery cells are printed with insulating glue, photographed, inspected, and cured, and then transported to the solder paste printing component 30; the solder paste printing component 30 first adjusts the BC battery cell position for pre-photographing, and then adjusts the position for precise photographing, and after the position adjustment, the BC battery cells are printed with solder paste, photographed, and inspected, and then transported to the curing furnace 40 to cure the solder paste on the BC battery cells; the BC battery cells with cured solder paste are transported to the dicing component 50 to divide the entire BC battery cell into two The BC cells are formed into two halves, and then the surface moisture of the sliced BC cells is dried and then transferred to the UV printing component 60; the BC cells are first photographed and positioned in the UV printing component 60, and then UV glue is printed on the BC cells in turn, and then they are transferred to the series component 70 after inspection; on the series component 70, multiple BC cells are first arranged into a whole string, and the inter-cell film applying component 80 applies the whole string of inter-cell film to the BC cells arranged in a string, and the string handling robot 716 on the series component 70 transports the battery string with the inter-cell film applied as a whole to the series transmission line 717, and the whole string of prepared solder strips is transported from the solder strip preparation mechanism 74 to the BC battery string of the series transmission line 717 by the solder strip handling mechanism 75, and then the battery string cured by the UV curing light box is subjected to corresponding photographing and inspection, and finally transported to the downstream process by the string conveying line 95.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0062] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A BC cell series connection device, characterized in that, It includes a feeding assembly, an insulating glue printing assembly, a solder paste printing assembly, a curing oven, a dicing assembly, a UV printing and solder tape rack assembly, a series connection assembly and a series inspection assembly which are arranged in sequence; and an inter-sheet film application assembly which is arranged on the side of the series connection assembly; Wherein, the series assembly includes a BC battery cell arrangement mechanism, a solder strip preparation mechanism and a solder strip conveying mechanism; the BC battery cell arrangement mechanism is arranged on the side of the UV printing and solder strip rack assembly; the solder strip conveying mechanism is arranged on the side of the BC battery cell arrangement mechanism; the solder strip conveying mechanism is arranged on the side of the BC battery cell arrangement mechanism and the solder strip preparation mechanism, and it transfers the solder strip prepared on the solder strip preparation mechanism to the BC battery cell arrangement mechanism; The welding strip preparation mechanism includes a translation component; a welding strip preparation component that is transmission-arranged on the translation component; a welding strip cutting component that is fixedly arranged on one side of the welding strip preparation component; the welding strip preparation component includes a sliding mechanism that is transmission-connected to the translation component; a first end clamping and cutting mechanism that is fixedly arranged on the sliding mechanism and is close to one side of the welding strip cutting component; a plurality of intermediate clamping and cutting structures that are sequentially arranged on the sides of the first end clamping and cutting mechanism and are respectively movably arranged on the sliding mechanism, and a second end clamping mechanism; The insulating glue printing assembly includes a first feeding conveyor line, which is connected to the rear end of the feeding assembly; a first pre-positioning mechanism and an insulating glue printing platform respectively arranged on the side of the first feeding conveyor line; an insulating glue printing mechanism movably arranged above the insulating glue printing platform; a first discharging conveyor line arranged on the side of the insulating glue printing platform opposite to the first feeding conveyor line; an insulating glue detection camera, a curing light box and a second NG unloading mechanism sequentially arranged on the side of the first discharging conveyor line; Among them, the first pre-positioning mechanism includes a pre-positioning structure, a pre-positioning camera and a first positioning camera; the pre-positioning structure is movably arranged below the first feeding conveyor line, and the pre-positioning camera is fixedly arranged above the pre-positioning structure, and the two cooperate to perform pre-positioning operations on the BC battery cells of the first feeding conveyor line, and the first positioning camera is arranged at the rear end of the pre-positioning camera, which accurately takes pictures of the BC battery cells on the insulating glue printing platform, and then the insulating glue printing platform accurately compensates for the BC battery cells.

2. The series connection device for BC solar cells according to claim 1, characterized in that, The inter-sheet film application assembly includes an inter-sheet film unwinding mechanism, which is arranged on the side of the series assembly; a film cutting mechanism and a transfer adsorption platform are sequentially arranged on the side of the inter-sheet film unwinding mechanism; The film-pulling jaw mechanism and the inter-sheet film handling robot are respectively arranged on the sides of the transfer adsorption platform; the film-pulling jaw mechanism pulls the inter-sheet film on the inter-sheet film unwinding mechanism, and the film cutting mechanism cuts the inter-sheet film in sections, and the whole string of inter-sheet film that has been cut is adsorbed and received by the transfer adsorption platform, and the inter-sheet film handling robot transports the whole string of inter-sheet film on the transfer adsorption platform to the string inspection component.

3. The series connection device for BC solar cells according to claim 1, characterized in that The loading assembly includes a loading conveyor line; a plurality of BC battery cell loading mechanisms, a detection mechanism, and a first NG unloading mechanism which are sequentially arranged on the side of the loading conveyor line.

4. A BC cell series connection device according to claim 1, characterized in that, The solder paste printing assembly includes a second feeding conveyor line, a solder paste printing platform and a second discharging conveyor line which are arranged in sequence, the second feeding conveyor line is connected and arranged at the rear end of the insulating glue printing assembly; a second pre-positioning mechanism is arranged on the side of the second feeding conveyor line; a solder paste printing mechanism is movably arranged on the side of the solder paste printing platform; a solder paste detection camera and a third NG unloading mechanism are arranged in sequence on the side of the second discharging conveyor line.

5. A BC cell series connection device according to claim 1, characterized in that, The slicing assembly includes a third feeding conveyor line, which is connected and arranged at the rear end of the curing furnace; a first alignment mechanism and a first alignment camera are respectively arranged at the front end of the third feeding conveyor line; a slicing platform is arranged on the other side of the third feeding conveyor line opposite to the curing furnace; a laser mechanism is arranged above the slicing platform; a drying belt mechanism is arranged on the side of the slicing platform; a split wafer handling robot is arranged on the sides of the slicing platform and the drying belt mechanism; a fourth NG unloading mechanism, a chamfering rotation mechanism, and a discharging handling robot are respectively arranged on the sides of the drying belt mechanism.

6. The series connection device for BC solar cells according to claim 1, characterized in that, The UV printing and welding tape rack assembly includes a second alignment mechanism, which is arranged on one side of the dicing assembly; a second alignment camera fixedly arranged above the second alignment mechanism; and a UV glue printing platform arranged on the side of the second alignment mechanism; A fork support mechanism movably arranged between the second alignment mechanism and the UV glue printing platform; A UV glue printing mechanism disposed above the UV glue printing platform; A fourth discharging conveyor line, a soldering tape unwinding mechanism and a soldering tape floating tensioning mechanism are respectively arranged on one side of the UV offset printing platform.

7. A BC cell series connection device according to claim 1, characterized in that, The BC battery cell arrangement mechanism includes a BC battery cell handling robot and an imaging belt respectively arranged on the sides of the UV printing and welding belt rack assembly; a second positioning camera and an arrangement machine respectively arranged at the ends of the imaging belt; an arrangement platform arranged in parallel on the side of the imaging belt; a series transmission line arranged on the side of the imaging belt and in the same straight line as the imaging belt; and a string handling robot arranged on the side of the series transmission line.

8. A BC cell series connection device according to claim 1, characterized in that, The solder strip transport mechanism comprises a lateral motion component, which is arranged on the side of the solder strip preparation mechanism; a lifting motion component slidably arranged on the lateral motion component; and a clamping and pressing component arranged below the lifting motion component.

9. The series connection device for BC solar cells according to claim 8, characterized in that, The clamping and pressing assembly includes a supporting mechanism, which is fixedly connected to the lifting and moving assembly; a clamping claw driving mechanism rotatably arranged on the supporting mechanism; a plurality of welding strip clamping mechanisms fixedly arranged in sequence below the supporting mechanism and respectively connected to the clamping claw driving mechanism in transmission; a second welding strip pressing mechanism that is movably arranged on the plurality of welding strip clamping mechanisms; and a plurality of pressing mechanisms that are respectively arranged on the supporting mechanism and respectively connected to the second welding strip pressing mechanisms in transmission.

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