Crossbar interconnect device

Abstract

The present application relates to a kind of dense grid glue interconnection equipment, belong to the field of optoelectronic technology. Including the rack of through whole production line, rack is equipped with material box conveying line, back piece grabbing loading module, back face normal detection module, back printing loading module, back printing module, turnover module, grabbing translation module, back adhesive detection positioning module, front printing loading module, front printing module, front face normal detection module, battery piece handling module. The present application can not need conventional string welding need battery piece on printing welding pad (silver paste), and need not use flux and special custom string use metal wire in making, avoid using high-temperature welding, further reduce the production cost of photovoltaic module, make N type battery piece can be further widely applied, greatly promote the technical development of photovoltaic cell industry.

Description

Technical Field

[0001] This invention relates to a dense grid adhesive interconnect device, belonging to the field of optoelectronic technology. Background Technology

[0002] In the field of photovoltaic power generation technology, the main tasks now are to save silver and improve photoelectric conversion efficiency. With the further increase in silicon wafer size, the photoelectric conversion efficiency of N-type cells (HJT, Topcon) has improved, but silver consumption has also increased accordingly. Currently, photovoltaic cells mainly use three types of conductor pastes: front silver paste, back silver paste, and back aluminum paste. These three conductor pastes are screen-printed, dried, and co-sintered to form the electrodes at both ends. The front silver paste is the light-receiving electrode of the photovoltaic cell, directly affecting the cell's photoelectric performance. It consists of high-purity silver powder, glass oxide, and organic resin solvents. The glass oxide and other mixed organic solvents account for less than 5% of the processing cost. Silver powder accounts for 95% of the total cost, thus directly determining the total cost of the photovoltaic cell.

[0003] In recent years, the expansion of photovoltaic (PV) installations and the rapid growth of the PV industry have boosted the market prospects for front-side silver paste, leading to an increase in the market size of the front-side silver paste industry. According to data from the World Silver Institute, global PV cell installations exceeded 116 GW in 2019, requiring approximately 3,069 tons of front-side silver paste for solar cells. With PV energy maintaining an average annual growth rate of nearly 200 GW, the global cumulative PV installation capacity is projected to reach 7,000 GW by 2050.

[0004] In order to reduce silver consumption while improving conversion efficiency, a new battery cell production connection device was developed. Summary of the Invention

[0005] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a dense grid adhesive interconnection device. This device employs a process where adhesive dots of a desired arrangement are first applied to both sides of the solar cell. Simultaneously, a main wire drawing module fabricates precision series-connecting metal wires. A metal wire transport module then transfers these wires, and an aerial bonding module uses the arranged adhesive dots to fix the series-connecting metal wires to the back of the solar cell and the front of adjacent solar cells. Through the cooperation of the metal wire fixing module and the pressing mechanism, reliable fixation and bonding of the metal wires to the multiple adhesive dots on the back of the solar cell are achieved. Similarly, through the cooperation of the conveyor module and the front curing module, reliable fixation and bonding of the metal wires to the multiple adhesive dots on the front of the solar cell are achieved. After being strung together, the metal wires and cells of the photovoltaic cell string are reliably fixed and bonded through multiple adhesive dots, achieving a metallized connection. The conductivity of the cell string can be judged in advance by EL (electromagnetic field), which is a brand-new process and equipment to replace the existing high-temperature welding process and equipment. Finally, the metal wires and cell grid lines are fully and stably electrically connected through lamination. It eliminates the need for printing welding pads (silver paste) on the cells in conventional string welding, and eliminates the need for flux and specially customized series wires in the manufacturing process. It also avoids the use of high-temperature welding, further reducing the production cost of photovoltaic modules, enabling the wider application of N-type cells, and greatly promoting the technological development of the photovoltaic cell industry.

[0006] The dense grid adhesive interconnect device of the present invention includes:

[0007] The frame runs through the entire production line and is equipped with a material box conveyor, a back-side gripping and feeding module, a back-side alignment and detection module, a back-side printing and feeding module, a back-side printing module, a flipping module, a gripping and translation module, a back-side glue inspection and positioning module, a front-side printing and feeding module, a front-side printing module, a front-side alignment and detection module, and a battery cell handling module.

[0008] The output end of the material box conveyor line is connected to the back-side gripping and feeding module. The output end of the back-side gripping and feeding module is connected to the back-side alignment detection module. The output end of the back-side alignment detection module is connected to the back-side printing and feeding module. The output end of the back-side printing and feeding module is connected to the back-side printing module. The output end of the back-side printing module is connected to the flipping module. The output end of the flipping module is connected to the gripping and translation module. The output end of the gripping and translation module is connected to the back-side glue inspection and positioning module. The output end of the back-side glue inspection and positioning module is connected to the front-side printing and feeding module. The output end of the front-side printing and feeding module is connected to the front-side printing module. The output end of the front-side printing module is connected to the front-side alignment detection module. The output end of the front-side alignment detection module is connected to the battery cell handling module.

[0009] It also includes a wire winding and unwinding module installed at one end of the frame, which is connected to the main grid wire drawing module;

[0010] The output of the main grid wire drawing module is connected to the wire conveying module;

[0011] The cell handling module and the wire handling module are both connected to the wire fixing module. The output of the wire fixing module is connected to the overhead assembly module, and the output of the overhead assembly module is connected to the front curing module. The output of the front curing module is connected to the conveyor line module.

[0012] Furthermore, the metal wire fixing module includes a sheet assembly mechanism, a pressing mechanism, and a curing mechanism, which are sequentially installed on the sheet assembly module.

[0013] Furthermore, the pressing mechanism includes a connecting rod, one end of which is fixed to a support rod, and a pressing unit is installed on the end of the support rod away from the connecting rod. An extrusion module is installed at the lower end of the pressing unit.

[0014] The pressing unit includes a vertical plate installed at one end of a support rod, a slider drive assembly installed on the vertical plate, a connecting frame installed on the slider of the slider drive assembly, an extrusion module installed at the lower end of the connecting frame, and a pressure needle on the extrusion module for contacting the battery cell after pressing.

[0015] Furthermore, the curing mechanism includes a curing platform, with a curing lamp installed below the curing platform.

[0016] Furthermore, the back-side alignment detection module includes a back-side detection mechanism and a back-side adjustment mechanism, which are respectively mounted on the frame.

[0017] Furthermore, the main grid wire drawing module includes a wire drawing mechanism and a transplanting platform. The wire drawing mechanism is located at the end of the transplanting platform, and the transplanting platform is mounted on the frame.

[0018] Furthermore, the transplanting platform includes a longitudinally arranged conveying unit, a lifting unit that can slide longitudinally is installed on one side of the conveying unit, and a wire carrier platform is installed on the lifting unit;

[0019] The wire carrier platform is equipped with a support component for adjusting the fine metal wire, a limiting component is installed in the middle of the wire carrier platform, and a wire clamping component is installed on the wire carrier platform.

[0020] Furthermore, lifting units are installed on both sides of the conveying unit, and a wire carrier platform is installed on the lifting units.

[0021] Furthermore, the back printing module includes a printing platform and a printing mechanism. The printing platform is mounted on the frame and can reciprocate. The printing mechanism is mounted above the printing platform.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] This invention employs a method of first applying adhesive dots of the desired arrangement to both sides of the solar cell, while simultaneously using a main wire drawing module to fabricate precision series-connecting metal wires. Then, a metal wire transport module transfers these wires, and an aerial assembly module uses the arranged adhesive dots to fix the series-connecting metal wires to the back of the solar cell and the front of adjacent solar cells. Through the cooperation of the metal wire fixing module and the pressing mechanism, reliable fixation and bonding of the metal wires to the multiple adhesive dots on the back of the solar cell are achieved. Similarly, through the cooperation of the conveyor module and the front curing module, reliable fixation and bonding of the metal wires to the multiple adhesive dots on the front of the solar cell are achieved. After being strung together, the metal wires and cells of the photovoltaic cell string are reliably fixed and bonded through multiple adhesive dots, achieving a metallized connection. The conductivity of the cell string can be judged in advance by EL (electromagnetic field), which is a brand-new process and equipment to replace the existing high-temperature welding process and equipment. Finally, the metal wires and cell grid lines are fully and stably electrically connected through lamination. It eliminates the need for printing welding pads (silver paste) on the cells in conventional string welding, and eliminates the need for flux and specially customized series wires in the manufacturing process. It also avoids the use of high-temperature welding, further reducing the production cost of photovoltaic modules, enabling the wider application of N-type cells, and greatly promoting the technological development of the photovoltaic cell industry. Attached Figure Description

[0024] Figure 1 This is a top view of Embodiment 1 of the present invention;

[0025] Figure 2 This is one of the structural schematic diagrams of Embodiment 1 of the present invention;

[0026] Figure 3 This is a second structural schematic diagram of Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the material box conveyor line structure of Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the back-side gripper feeding module structure of Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic diagram of the back-side alignment detection module structure in Embodiment 1 of the present invention;

[0030] Figure 7 This is a schematic diagram of the back printing loading module structure of Embodiment 1 of the present invention;

[0031] Figure 8 This is a schematic diagram of the back printing module structure of Embodiment 1 of the present invention;

[0032] Figure 9 This is a schematic diagram of the flip module structure of Embodiment 1 of the present invention;

[0033] Figure 10This is a schematic diagram of the grasping and translation module structure of Embodiment 1 of the present invention;

[0034] Figure 11 This is a schematic diagram of the back adhesive inspection and positioning module structure of Embodiment 1 of the present invention;

[0035] Figure 12 This is a schematic diagram of the front printing and feeding module structure of Embodiment 1 of the present invention;

[0036] Figure 13 This is a schematic diagram of the front printing module structure of Embodiment 1 of the present invention;

[0037] Figure 14 This is a schematic diagram of the frontal alignment detection module structure in Embodiment 1 of the present invention;

[0038] Figure 15 This is a schematic diagram of the battery cell handling module structure according to Embodiment 1 of the present invention;

[0039] Figure 16 This is a schematic diagram of the metal wire fixing module structure of Embodiment 1 of the present invention;

[0040] Figure 17 This is a schematic diagram of the pressing mechanism structure of Embodiment 1 of the present invention;

[0041] Figure 18 This is a schematic diagram of the pressing unit structure of Embodiment 1 of the present invention;

[0042] Figure 19 This is a schematic diagram of the wire winding and unwinding module structure of Embodiment 1 of the present invention;

[0043] Figure 20 This is a schematic diagram of the main grid wire drawing module structure in Embodiment 1 of the present invention;

[0044] Figure 21 This is a schematic diagram of the metal wire transport module structure according to Embodiment 1 of the present invention;

[0045] Figure 22 This is a schematic diagram of the aerial splicing module structure of Embodiment 1 of the present invention;

[0046] Figure 23 This is a schematic diagram of the front curing module structure of Embodiment 1 of the present invention;

[0047] Figure 24 This is a schematic diagram of the conveyor module structure of Embodiment 1 of the present invention;

[0048] Figure 25 This is a schematic diagram of the material feeding module structure in Embodiment 1 of the present invention;

[0049] Figure 26 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0050] Figure 27 This is a schematic diagram of the conveying unit structure of Embodiment 1 of the present invention;

[0051] Figure 28 This is a schematic diagram of the lifting unit structure of Embodiment 1 of the present invention;

[0052] Figure 29 This is a schematic diagram of the filament carrier platform structure of Embodiment 1 of the present invention;

[0053] Figure 30 yes Figure 29 Enlarged view of a portion of point A in the middle;

[0054] Figure 31 This is a schematic diagram of the wire clamping assembly structure according to Embodiment 1 of the present invention;

[0055] In the diagram: 1. Material box conveyor line; 2. Back-side gripping and feeding module; 3. Back-side alignment and detection module; 31. Back-side detection mechanism; 32. Back-side adjustment mechanism; 4. Back-side printing and feeding module; 5. Back-side printing module; 51. Printing mechanism; 52. Printing platform; 6. Flipping module; 7. Gripping and translation module; 8. Back-side glue inspection and positioning module; 9. Front-side printing and feeding module; 10. Front-side printing module; 11. Front-side alignment and detection module; 12. Electrical... 13. Steel sheet handling module; 131. Steel sheet assembly mechanism; 132. Pressing mechanism; 1a. Pressing unit; 11a. Vertical plate; 111a. Adjustment hole; 12a. Slider drive assembly; 13a. Connecting frame; 131a. Long slotted threaded hole I; 2a. Extrusion module; 21a. Connecting plate; 211a. Long slotted threaded hole II; 22a. Adjusting plate; 23a. Pressure plate; 24a. Adjustment device; 25a. Longitudinal adjustment device 3a. Support rod; 4a. Connecting rod; 5a. Pressure pin; 133. Curing mechanism; 1331. Curing platform; 1332. Curing lamp; 14. Wire coil feeding module; 15. Main grid wire drawing module; 151. Wire drawing mechanism; 152. Transplanting platform; 1b. Conveying unit; 11b. Drive device I; 12b. Fixing seat; 13b. Screw slide rail mechanism I; 2b. Lifting unit; 21b. Engaging mechanism; 22b. Lifting seat; 23. b. Screw and slide rail mechanism II; 24b. Support plate; 25b. Drive device II; 26b. Connecting platform; 3b. Wire carrying platform; 31b. Wire clamping assembly; 311b. Wire clamping head; 32b. Support assembly I; 33b. Limiting assembly; 34b. Support assembly II; 16. Metal wire handling module; 17. Aerial assembly module; 171. Conveying mechanism; 172. Slide rail; 18. Front curing module; 19. Conveying line module; 20. Unloading module. Detailed Implementation

[0056] Example 1

[0057] like Figures 1 to 25 As shown, the dense grid adhesive interconnect device of the present invention includes:

[0058] The frame runs through the entire production line and is equipped with the following modules: 1. Material box conveyor; 2. Back-side sheet feeding module; 3. Back-side alignment and detection module; 4. Back-side printing feeding module; 5. Back-side printing module; 6. Flipping module; 7. Gripping and translation module; 8. Back-side glue inspection and positioning module; 9. Front-side printing feeding module; 10. Front-side printing module; 11. Front-side alignment and detection module; 12. Battery cell handling module.

[0059] The output end of the material box conveyor line 1 is connected to the back gripping and feeding module 2. The output end of the back gripping and feeding module 2 is connected to the back alignment detection module 3. The output end of the back alignment detection module 3 is connected to the back printing and feeding module 4. The output end of the back printing and feeding module 4 is connected to the back printing module 5. The output end of the back printing module 5 is connected to the flipping module 6. The output end of the flipping module 6 is connected to the gripping and translation module 7. The output end of the gripping and translation module 7 is connected to the back glue inspection and positioning module 8. The output end of the back glue inspection and positioning module 8 is connected to the front printing and feeding module 9. The output end of the front printing and feeding module 9 is connected to the front printing module 10. The output end of the front printing module 10 is connected to the front alignment detection module 11. The output end of the front alignment detection module 11 is connected to the battery cell handling module 12.

[0060] It also includes a wire winding and unwinding module 14 installed at one end of the frame, which is connected to the main grid wire drawing module 15;

[0061] The output end of the main grid wire drawing module 15 is connected to the metal wire conveying module 16;

[0062] The cell handling module 12 and the wire handling module 16 are simultaneously connected to the wire fixing module 13. The output end of the wire fixing module 13 is connected to the overhead assembly module 17. The output end of the overhead assembly module 17 is connected to the front curing module 18. The output end of the front curing module 18 is connected to the conveyor module 19. The conveyor module 19 sends the processed cells to the unloading module 20.

[0063] The metal wire fixing module 13 includes a sheet assembly mechanism 131, a pressing mechanism 132, and a curing mechanism 133. The sheet assembly mechanism 131, the pressing mechanism 132, and the curing mechanism 133 are installed sequentially on the sheet assembly module.

[0064] like Figures 16-18 As shown, the curing mechanism 133 includes a curing platform 1331, and a curing lamp 1332 is installed below the curing platform 1331. The curing lamp 1332 can be an ultraviolet lamp.

[0065] A pressing unit 1a is installed at the lower end of the pressing mechanism 132. A pressing pin is installed on the pressing unit 1a, and the pressing pin is connected in series with a metal wire.

[0066] The pressing mechanism includes a connecting rod 4a, a support rod 3a fixed at one end of the connecting rod 4a, a pressing unit 1a installed at the end of the support rod 3a away from the connecting rod 4a, and an extrusion module 2a installed at the lower end of the pressing unit 1a.

[0067] The pressing unit 1a includes a vertical plate 11a installed at one end of the support rod 3a, a slider drive assembly 12a installed on the vertical plate 11a, a connecting frame 13a installed on the slider of the slider drive assembly 12a, an extrusion module 2a installed at the lower end of the connecting frame 13a, and a pressure needle 5a provided on the extrusion module 2a for contacting the battery cell after pressing.

[0068] A pair of pressing units 1a are installed at one end of the support rod 3a.

[0069] The extrusion module 2a includes a connecting plate 21a installed at the lower end of the connecting frame 13a, an adjusting plate 22a installed on the connecting plate 21a, pressure needles 5a evenly arranged on the adjusting plate 22a, and a pressure plate 23a for fixing the pressure needles 5a is provided on one side of the pressure needles 5a.

[0070] A pressure cap is provided at one end of the pressure needle 5a. A through hole is provided on the pressure plate 23a to accommodate the pressure needle 5a. The diameter of the through hole is smaller than the diameter of the pressure cap. The pressure needle 5a is inserted into the through hole, and then the pressure plate 23a is used to press the pressure needle 5a onto the adjustment plate 22a.

[0071] An adjustment hole 111a is provided on the upright plate 11a to finely adjust the longitudinal position of the extrusion module 2a as it passes under the battery cell.

[0072] A lateral adjustment device 24a is provided at the contact point between the connecting frame 13a and the connecting plate 21a. The lateral adjustment device 24a works in conjunction with the long slot threaded hole I131a at the bottom of the connecting frame 13a to make lateral adjustments. The lateral adjustment device 24a is a positioning plate fixed to the side of the connecting frame 13a. Screws are installed on the outside of the positioning plate, and the connecting plate 21a is adjusted by the screws. The lateral adjustment devices 24a are used symmetrically, and two pairs are set here.

[0073] A longitudinal adjustment device 25a is provided at the contact point between the connecting plate 21a and the adjusting plate 22a. The longitudinal adjustment device 25a cooperates with the long slot threaded hole II 211a to achieve adjustment, which is the same as the setting method of the transverse adjustment device 24a.

[0074] The slider drive group 12a is a linear module or a cylinder module.

[0075] The back-side alignment detection module 3 includes a back-side detection mechanism 31 and a back-side adjustment mechanism 32, which are respectively mounted on the frame.

[0076] The main grid wire drawing module 15 includes a wire drawing mechanism 151 and a transplanting platform 152. The wire drawing mechanism 151 is located at the end of the transplanting platform 152, and the transplanting platform 152 is mounted on the frame.

[0077] like Figures 26-31 As shown, the transplanting platform 152 includes a longitudinally arranged conveying unit 1b, a lifting unit 2b that can slide longitudinally is installed on one side of the conveying unit 1b, and a wire carrier platform 3b is installed on the lifting unit 2b.

[0078] The wire carrier platform 3b is equipped with a support assembly for adjusting the fine metal wire, a limiting assembly 33b is installed in the middle of the wire carrier platform 3b, and a wire clamping assembly 31b is installed on the wire carrier platform 3b.

[0079] Lifting units 2b are installed on both sides of the conveying unit 1b, and a wire carrier platform 3b is installed on the lifting unit 2b.

[0080] The conveying unit 1b includes a fixed base 12b, on which a screw slide rail mechanism I13b for driving the lifting unit 2b to slide is installed. A drive device I11b for driving the screw slide rail mechanism I13b is installed at one end of the fixed base 12b. The drive device I11b is a servo motor.

[0081] The lifting unit 2b includes a locking mechanism 21b adapted to the drive screw and slide rail mechanism I. A lifting seat 22b is fixed on one side of the locking mechanism 21b, and a screw and slide rail mechanism II 23b is installed on one side of the lifting seat 22b. A support plate 24b is installed on the screw and slide rail mechanism II 23b, and a drive device II 25b for driving the screw and slide rail mechanism II 23b is installed on the support plate 24b. A connecting platform 26b is installed on the upper end of the support plate 24b, and the drive device II 25b is a servo motor.

[0082] The carrier platform 3b is horizontally fixed on the connecting platform 26b.

[0083] The limiting component 33b includes an L-shaped plate fixedly installed in the middle of the wire carrier platform 3b. V-shaped limiting slots are evenly opened on the L-shaped plate. When in use, the metal wire is pushed into the corresponding V-shaped limiting slot.

[0084] The support assembly includes support assembly I 32b and support assembly II 34b, which are respectively mounted on the yarn carrier platform 3b. Support assembly I 32b can be moved and adjusted on the yarn carrier platform 3b.

[0085] The wire carrier platform 3b has wire clamping assemblies 31b installed at both ends. The wire clamping assembly 31b includes a wire clamping head 311b, which is pneumatically driven and has a control board adapted to the wire clamping head. When the cylinder pushes the control board, the wire clamping head 311b opens. The wire clamping head 311b is equipped with a clamping elastic mechanism, which can be realized by a spring. Its principle is similar to that of a conventional clamp.

[0086] The working process of transplanting platform 152: After the metal wire is placed on the wire carrier platform 3b, it is pushed into the corresponding V-shaped limit slot in the limiting component 33b through other processes. The support component adjusts and supports the metal wire, and the wire clamping component fixes the metal wire. Finally, it is transported by the conveying unit 1b and cross-feeding is achieved by the lifting unit 2b. When one side of the wire carrier platform 3b is sent to the designated position, after the metal wire is transferred, the wire carrier platform 3b can be lowered or raised during the return stroke. The other side of the wire carrier platform 3b can move in the opposite direction to the first side, passing under or above the first side, thereby achieving cross-feeding.

[0087] like Figure 8 As shown, the back printing module 5 includes a printing platform 52 and a printing mechanism 51. The printing platform 52 is mounted on the frame and can reciprocate. The printing mechanism 51 is mounted above the printing platform 52.

[0088] like Figure 22 As shown, the aerial assembly module 17 includes two parallel conveying mechanisms 171. The conveying mechanisms 171 can move up and down. The bottom of each conveying mechanism 171 is equipped with a suction cup and is mounted on a slide rail 172, allowing it to move left and right on the slide rail 172.

[0089] The manufacturing process of the dense grid adhesive interconnect device of the present invention includes:

[0090] Step 1: The battery cells are picked up and fed using the back-side gripping and feeding module 2.

[0091] Step 2: The battery cell position is aligned using the back alignment detection module 3.

[0092] Step 3: After alignment, use the back printing and feeding module 4 for precise feeding, so that the battery cells enter the back printing module 5.

[0093] Step 4: Apply coating to the back of the battery cell using the back printing module 5. The coating is in the form of dots and is evenly distributed on the back of the battery cell.

[0094] Step 5: After printing on the back, use the flipping module 6 to flip the paper and apply the coating to the front.

[0095] Step 6: The battery cells are inspected by the back adhesive inspection and positioning module 8 to achieve precise positioning;

[0096] Step 7: Use the front printing loading module 9 to feed the battery cells into the front printing module 10;

[0097] Step 8: The front printing module 10 applies curing adhesive to the front of the battery cell. The curing adhesive is in the form of dots and is evenly distributed on the front of the battery cell.

[0098] Step 9: The battery cell is aligned by the front alignment detection module 11 and then fed into the metal wire fixing module 13.

[0099] Accompanying the above process are also:

[0100] Step 1': The series-connected metal wires are fed out through the metal wire winding and unwinding module 14;

[0101] Step 2': The main grid wire drawing module 15 straightens the series metal wire to ensure the quality of the series metal wire output;

[0102] Step 3': The series metal wire is sent to the metal wire fixing module 13 via the metal wire conveying module 16;

[0103] Enter the metal wire fixing module 13 to put the reverse side of the battery cell and the series metal wire together, so that the series metal wire is evenly distributed on the surface of the battery cell, and then fix the reverse side of the battery cell and the series metal wire. After the cells are put together, a section of series metal wire is left at one end of the battery cell.

[0104] Step 1”, the combined solar cells use the air-mounted bonding module 17 to connect the series wires extending from one end of the solar cells.

[0105] Step 2”, the aerial bonding module 17 fuses the extended series metal wire with the dotted adhesive on the front of another battery cell;

[0106] Step 3”: The front-side bonding of the battery cells is fixed with metal wires using the front-side curing module 18;

[0107] Step 4”, the finished battery string is sent out through the conveyor module 19.

[0108] The series-connected metal wires are fully bonded to the dotted curing adhesive on the battery cells.

[0109] The length of the series-connected metal wire is reserved to meet the length of the connection between the front and back of the battery cell and the series-connected metal wire.

[0110] The curing adhesive is a UV adhesive, which can be cured by irradiation with ultraviolet light.

[0111] In step 2", the air-mounted assembly module 17 connects the two battery cells and the series-connected metal wires into a Z-shape to achieve connectivity.

[0112] The descriptions of the orientation and relative positional relationships of the structures in this invention, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation of this invention, but are merely for the convenience of description.

Claims

1. A dense grid adhesive interconnect device, characterized in that, include: The frame runs through the entire production line and is equipped with a material box conveyor (1), a back-side sheet feeding module (2), a back-side alignment detection module (3), a back-side printing feeding module (4), a back-side printing module (5), a flipping module (6), a gripping and translation module (7), a back-side glue inspection and positioning module (8), a front-side printing feeding module (9), a front-side printing module (10), a front-side alignment detection module (11), and a battery cell handling module (12). The output end of the material box conveyor line (1) is connected to the back gripping and feeding module (2), the output end of the back gripping and feeding module (2) is connected to the back alignment detection module (3), the output end of the back alignment detection module (3) is connected to the back printing feeding module (4), the output end of the back printing feeding module (4) is connected to the back printing module (5), the output end of the back printing module (5) is connected to the flipping module (6), the output end of the flipping module (6) is connected to the gripping and translation module (7), the output end of the gripping and translation module (7) is connected to the back glue inspection and positioning module (8), the output end of the back glue inspection and positioning module (8) is connected to the front printing feeding module (9), the output end of the front printing feeding module (9) is connected to the front printing module (10), the output end of the front printing module (10) is connected to the front alignment detection module (11), and the output end of the front alignment detection module (11) is connected to the battery cell handling module (12). It also includes a wire coil feeding module (14) installed at one end of the frame, which is connected to the main grid drawing module (15). The output end of the main grid wire drawing module (15) is connected to the wire conveying module (16). The cell handling module (12) and the wire handling module (16) are simultaneously connected to the wire fixing module (13). The output end of the wire fixing module (13) is connected to the air assembly module (17). The output end of the air assembly module (17) is connected to the front curing module (18). The output end of the front curing module (18) is connected to the conveyor module (19).

2. The dense grid adhesive interconnection device according to claim 1, characterized in that, The metal wire fixing module (13) includes a piece assembly mechanism (131), a pressing mechanism (132) and a curing mechanism (133). The piece assembly mechanism (131), the pressing mechanism (132) and the curing mechanism (133) are installed sequentially on the piece assembly module.

3. The dense grid adhesive interconnection device according to claim 2, characterized in that, The pressing mechanism (132) includes a connecting rod (4a), a support rod (3a) is fixed at one end of the connecting rod (4a), a pressing unit (1a) is installed on the end of the support rod (3a) away from the connecting rod (4a), and an extrusion module (2a) is installed at the lower end of the pressing unit (1a). The pressing unit (1a) includes a vertical plate (11a) installed at one end of a support rod (3a), a slider drive assembly (12a) installed on the vertical plate (11a), a connecting frame (13a) installed on the slider of the slider drive assembly (12a), an extrusion module (2a) installed at the lower end of the connecting frame (13a), and a pressure needle (5a) provided on the extrusion module (2a) for contacting the battery cell after pressing.

4. The dense grid adhesive interconnection device according to claim 2, characterized in that, The curing mechanism (133) includes a curing platform (1331), and a curing lamp (1332) is installed below the curing platform (1331).

5. The dense grid adhesive interconnection device according to any one of claims 1-4, characterized in that, The back-side alignment detection module (3) includes a back-side detection mechanism (31) and a back-side adjustment mechanism (32), which are respectively installed on the frame.

6. The dense grid adhesive interconnection device according to any one of claims 1-4, characterized in that, The main grid wire drawing module (15) includes a wire drawing mechanism (151) and a transplanting platform (152). The wire drawing mechanism (151) is located at the end of the transplanting platform (152), and the transplanting platform (152) is mounted on the frame.

7. The dense grid adhesive interconnection device according to claim 6, characterized in that, The transplanting platform (152) includes a longitudinally arranged conveying unit (1b), a lifting unit (2b) that can slide longitudinally is installed on one side of the conveying unit (1b), and a wire carrier platform (3b) is installed on the lifting unit (2b). The wire carrier platform (3b) is provided with a support assembly for adjusting the fine metal wire, a limiting assembly (33b) is installed in the middle of the wire carrier platform (3b), and a wire clamping assembly (31b) is installed on the wire carrier platform (3b).

8. The dense grid adhesive interconnection device according to claim 7, characterized in that, Lifting units (2b) are installed on both sides of the conveying unit (1b), and a wire carrier platform (3b) is installed on the lifting unit (2b).

9. The dense grid adhesive interconnection device according to any one of claims 1-4, characterized in that, The back printing module (5) includes a printing platform (52) and a printing mechanism (51). The printing platform (52) is mounted on the frame and can reciprocate. The printing mechanism (51) is mounted above the printing platform (52).

Images