A battery piece single piece fixing device

Abstract

The application provides a battery piece single-piece fixing device, which comprises a battery piece supply mechanism, a first conveying mechanism, a gluing mechanism, a second conveying mechanism, a welding strip laying mechanism, a conveying mechanism and a fixing mechanism. The first conveying mechanism conveys initial battery pieces supplied by the battery piece supply mechanism to the gluing mechanism, and the gluing mechanism is configured to apply glue points to both side surfaces of the initial battery pieces to obtain glued battery pieces. The welding strip laying mechanism is configured to lay a first welding strip group on the conveying mechanism at a feeding station. The second conveying mechanism is configured to stack the glued battery pieces on the gluing mechanism on the first welding strip group. The welding strip laying mechanism is further configured to stack a second welding strip group on the glued battery pieces. The conveying mechanism conveys the stacked first welding strip group, the glued battery pieces and the second welding strip group to a fixing station, and the fixing mechanism is configured to fix and connect the first welding strip group and the second welding strip group conveyed to the fixing station to the glued battery pieces through at least the glue points.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell string production, specifically a single cell fixing device. Background Technology

[0002] A battery string is formed by bonding solar cells with adhesive dots on both sides to solder ribbons; that is, the solder ribbons in the battery string are connected to the solar cells via adhesive dots on the surface of the solar cells. When there are defective solar cells in the battery string, the battery string can be reworked. Figure 15 Taking the battery string shown as an example, the connecting solder strip between the defective battery cell 300 and its adjacent neighboring battery cell 400 is cut off, and the solder strip is cut off at the location shown in the figure. Figure 1 The defective battery cell 300 is removed from the battery string by marking the "×" position. Then, the replacement battery cell 500 with the solder ribbon group is placed in the empty position after the defective battery cell 300 is removed, and the solder ribbon group on the replacement battery cell 500 is lap-welded with the solder ribbon group on the adjacent battery cell 400.

[0003] Before formally repairing the aforementioned battery string, replacement battery cells need to be prepared in advance. The replacement battery cells have solder ribbons on both sides, and the solder ribbons on both sides are connected to the battery cells by adhesive dots, which are located between the solder ribbons and the battery cells.

[0004] Existing single-cell bonding devices (such as Chinese utility model patent with publication number CN221454779U) can only weld the solder ribbon to the cell without adhesive dots. That is, the solder ribbon and the cell are not connected by adhesive dots, so it is impossible to prepare the replacement cell required for the above-mentioned battery string repair. Utility Model Content

[0005] To address the technical problem that traditional single-cell mounting devices are difficult to implement for the fabrication of the aforementioned replacement cells, this application provides a single-cell mounting device, the detailed technical solution of which is as follows:

[0006] A single-cell bonding device for solar cells includes a cell supply mechanism, a first conveying mechanism, a glue application mechanism, a second conveying mechanism, a ribbon laying mechanism, a conveying mechanism, and a bonding mechanism, wherein:

[0007] The first conveying mechanism is configured to pick up an initial cell from the cell supply mechanism and convey the picked-up initial cell to the coating mechanism, which is configured to apply adhesive dots to both sides of the initial cell to obtain a coated cell.

[0008] The conveying mechanism has a feeding station and a fixed connection station along its conveying path;

[0009] The ribbon laying mechanism is configured to lay a first ribbon group onto the conveying mechanism at the loading station; the second handling mechanism is configured to pick up a coated solar cell from the coating mechanism and stack the picked-up coated solar cell onto the first ribbon group; the ribbon laying mechanism is also configured to stack a second ribbon group onto the coated solar cell.

[0010] The conveying mechanism is configured to transport the stacked first welding strip group, the glued battery cells, and the second welding strip group to the bonding station;

[0011] The bonding mechanism is located at the bonding station and is configured to bond the first and second ribbon groups delivered to the bonding station to the glued solar cell at least via adhesive dots.

[0012] The single-cell bonding device for solar cells provided in this application includes an adhesive application mechanism. A first transport mechanism picks up an initial solar cell from a solar cell supply mechanism and transfers it to the adhesive application mechanism. The adhesive application mechanism then applies adhesive dots for bonding the solder ribbons to both sides of the initial solar cell. Subsequently, a second transport mechanism and a solder ribbon laying mechanism cooperate to stack a first solder ribbon group, the adhesive-coated solar cell with adhesive dots, and a second solder ribbon group onto a conveying mechanism. Finally, a bonding mechanism secures the first and second solder ribbon groups to the adhesive-coated solar cell via the adhesive dots on the adhesive-coated solar cell, thereby obtaining a replacement solar cell for repair.

[0013] In some embodiments, the adhesive application mechanism includes an adhesive application support, an adhesive application section, a first flipping section, a first conveying section, a second conveying section, and a first detection section, wherein: the first conveying mechanism is configured to convey the picked-up initial battery cell to the adhesive application support, and the movement path of the adhesive application support is provided with an adhesive application station and a flipping station; the adhesive application section is located at the adhesive application station and is configured to apply adhesive dots to the first surface of the initial battery cell that has moved to the adhesive application station and to the second surface of the initial battery cell that has been flipped; the first flipping section is located at the flipping station and is configured to pick up the battery cell that has been adhesively applied to the first surface from the adhesive application support that has moved to the flipping station. The system comprises: an initial battery cell and a flipping mechanism for picking up the initial battery cell; a first transport unit configured to pick up the flipped initial battery cell from the first flipping unit and place the picked-up initial battery cell on an adhesive application support unit; a second transport unit configured to pick up adhesive-applied battery cells from the adhesive application support unit and transport the adhesive-applied battery cells to a first inspection unit; a first inspection unit configured to perform defect detection and positioning on the adhesive-applied battery cells; and a second transport mechanism configured to pick up qualified adhesive-applied battery cells from the first inspection unit and stack the adhesive-applied battery cells onto a first welding strip group on a conveying mechanism according to the position information of the adhesive-applied battery cells.

[0014] By configuring the adhesive application mechanism, only one adhesive application unit is needed to sequentially apply adhesive to the first and second surfaces of the initial solar cell to obtain an adhesive-coated solar cell. This reduces the cost and size of the adhesive application mechanism. Furthermore, by using a first inspection unit to detect and locate defects in the adhesive-coated solar cells, the second transport mechanism can accurately stack qualified adhesive-coated solar cells onto the first welding strip assembly on the conveyor mechanism.

[0015] In some embodiments, the adhesive application support includes a first translation component and a first support platform, wherein the first support platform is connected to a movable part of the first translation component and is used to support the initial battery cell; the first translation component is used to drive the first support platform to reciprocate in the horizontal direction, and the adhesive application station and the flipping station are located on the translation path of the first support platform; a plurality of first clearance grooves are arranged side by side at intervals on the first support platform, the first clearance grooves are used to avoid adhesive dots on the initial battery cell after flipping, and adsorption holes for adsorbing the initial battery cell are provided between adjacent first clearance grooves.

[0016] A simple adhesive application support unit is provided, which drives a first support platform to translate via a first translation component, thereby switching the first support platform between an adhesive application station and a flipping station. A first clearance groove is provided on the first support platform to prevent adhesive dots on the initial solar cell from contacting the support surface of the first support platform and being damaged. Adsorption holes are provided between adjacent first clearance grooves to achieve adsorption and fixation of the initial solar cell, preventing misalignment during movement.

[0017] In some embodiments, the first inspection unit includes a first inspection table and a first camera, wherein: a second transport unit transports the coated solar cells to the first inspection table; a plurality of second clearance grooves are arranged side by side at intervals on the bearing surface of the first inspection table, the second clearance grooves being used to avoid adhesive dots on the coated solar cells; the first camera is located above the first inspection table, and the first camera is used to take pictures of the coated solar cells located on the first inspection table, so as to perform defect detection and location of the coated solar cells.

[0018] The first camera can acquire images of the coated solar cells on the first inspection table. By performing image analysis on the coated solar cells, the positional information of the coated solar cells can be accurately obtained, and defect detection of the coated solar cells can be completed. By setting second clearance grooves side by side at intervals on the bearing surface of the first inspection table to avoid the adhesive dots on the coated solar cells, the adhesive dots on the initial solar cells can be prevented from touching the bearing surface of the first inspection table and causing damage to the adhesive dots.

[0019] In some embodiments, the coating mechanism further includes a first NG receiving section, and the second conveying mechanism or the second conveying section is configured to pick up defective coated solar cells from the first detection section and convey the picked-up defective coated solar cells to the first NG receiving section.

[0020] By setting up a first NG receiving section, the recycling of unqualified coated solar cells was achieved.

[0021] In some embodiments, the first flipping unit includes a flipping drive assembly and an adsorption plate, wherein the adsorption plate is connected to the drive end of the flipping drive assembly, at least one surface of the adsorption plate is an adsorption surface, and a plurality of third clearance grooves are arranged side by side at intervals on the adsorption surface, the third clearance grooves being used to avoid adhesive dots applied to the first surface of the initial battery cell; when the flipping drive assembly flips the adsorption plate to an adsorption surface facing down, the adsorption plate picks up the initial battery cell located on the adhesive application support at the flipping station; when the flipping drive assembly flips the adsorption plate to an adsorption surface facing up, the initial battery cell is flipped; the first transport unit is configured to pick up the flipped initial battery cell from the adsorption plate.

[0022] A simple first flipping unit is provided, which drives an adsorption plate to flip via a flipping drive assembly, thereby causing the adsorption plate to pick up the initial battery cell on the adhesive application support and flipping the picked-up initial battery cell. By providing a third clearance groove on the adsorption plate, the adhesive dots applied to the first surface of the initial battery cell are avoided, preventing the adhesive dots on the first surface of the initial battery cell from contacting the adsorption surface of the adsorption plate and causing damage to the adhesive dots.

[0023] In some embodiments, the single-cell fixing device further includes a straightening component disposed on the side of the adsorption plate, the straightening component being configured to perform positional correction on the initial cell that has been flipped over on the adsorption plate; the first conveying unit is configured to pick up the initial cell that has been flipped over and corrected from the adsorption plate.

[0024] By setting a straightening component on the side of the adsorption plate of the first flipping part, the position of the initial battery cell after flipping is corrected. The first transport part places the initial battery cell after flipping and correcting its position back onto the adhesive bearing part, which can ensure the adhesive application accuracy of the second surface of the initial battery cell.

[0025] In some embodiments, the cell supply mechanism includes a transfer unit, a second inspection unit, and a second NG receiving unit, wherein: the second inspection unit includes a second inspection table and a second camera; the transfer unit is configured to pick up initial cells from the cassette and transfer the picked-up initial cells to the second inspection table; the second camera is located above the second inspection table and is used to photograph the initial cells located on the second inspection table to perform defect detection and location of the initial cells; a first conveying mechanism is configured to pick up qualified initial cells from the second inspection table and convey the initial cells to the coating mechanism according to the position information of the initial cells; the first conveying mechanism is also configured to pick up unqualified initial cells from the second inspection table and convey the picked-up unqualified initial cells to the second NG receiving unit.

[0026] Through the cooperation of the transfer unit, the second inspection unit, and the second NG receiving unit, the cell supply mechanism realizes the automatic feeding of initial cells and the detection and positioning of defects in the initial cells. This ensures that the first handling unit can accurately place qualified initial cells onto the gluing unit, guaranteeing the gluing accuracy of the first surface of the initial cells. Unqualified initial cells are recycled by the second NG receiving unit.

[0027] In some embodiments, the adhesive application mechanism includes a first adhesive application support, a first adhesive application section, a second flipping section, a second adhesive application support, a second adhesive application section, a third conveying section, and a third detection section, wherein: the first conveying mechanism is configured to convey the picked-up initial battery cell to the first adhesive application support, and the first adhesive application support has a first adhesive application station and a flipping station arranged on its movement path; the first adhesive application section is disposed at the first adhesive application station and is configured to apply adhesive dots to the first surface of the initial battery cell that has moved to the first adhesive application station; the flipping section is disposed at the flipping station and is configured to pick up the initial battery cell with the first surface adhesive applied from the first adhesive application support that has moved to the flipping station, and to... The initial solar cell is flipped over and placed on the second adhesive application support. A second adhesive application station is provided on the movement path of the second adhesive application support. The second adhesive application unit is located at the second adhesive application station and is configured to apply adhesive dots to the second surface of the initial solar cell that has moved to the second adhesive application station. The third transport unit is configured to pick up the adhesive-applied solar cell from the second adhesive application support and transport the adhesive-applied solar cell to the third inspection unit. The third inspection unit is configured to perform defect detection and positioning on the adhesive-applied solar cell. The second transport mechanism is configured to pick up the qualified adhesive-applied solar cell from the third inspection unit and stack the adhesive-applied solar cell onto the first solder strip group according to the position information of the adhesive-applied solar cell.

[0028] An alternative adhesive application mechanism is provided, which can continuously apply adhesive to the first and second surfaces of initial solar cells to obtain adhesive-coated solar cells. Because it has two application sections, while the second application section is applying adhesive to the second surface of one initial solar cell, the first application section can simultaneously apply adhesive to the first surface of another initial solar cell, thereby improving application efficiency. Furthermore, by using a second inspection section to detect and locate defects in the adhesive-coated solar cells, it can be ensured that the second handling mechanism can accurately stack qualified adhesive-coated solar cells onto the first ribbon assembly on the conveyor mechanism.

[0029] In some embodiments, the ribbon laying mechanism includes a ribbon feeding section, a ribbon pressing section, a ribbon cutting section, and a ribbon traction section, wherein: the ribbon feeding section is configured to feed out multiple ribbons, each ribbon passing sequentially through the ribbon pressing section and the ribbon cutting section and then being clamped by the ribbon traction section; the ribbon traction section is configured to move away from the ribbon cutting section to pull out the ribbons; the ribbon pressing section is configured to press each ribbon, and the ribbon cutting section is configured to cut each pressed ribbon to obtain a first ribbon group or a second ribbon group; the ribbon traction section is further configured to lay the first ribbon group onto a conveying mechanism, or lay the second ribbon group onto a coated solar cell.

[0030] Through the cooperation of the welding strip feeding section, welding strip pressing section, welding strip cutting section and welding strip traction section, the welding strip laying mechanism realizes the automatic preparation of the first welding strip group and the second welding strip group, and realizes the automatic laying of the first welding strip group and the second welding strip group.

[0031] In some embodiments, the solder strip laying mechanism includes a flux coating section, and multiple solder strips released from the solder strip feeding section pass sequentially through the flux coating section, the solder strip pressing section and the solder strip cutting section and are then clamped by the solder strip traction section. The flux coating section is configured to coat each solder strip with flux.

[0032] When the adhesive dots are thermosetting adhesive dots, a flux coating section is provided before the solder strip clamping section. During the solder strip traction process, the flux coating section automatically applies flux to each solder strip. In this way, when the bonding mechanism heats the bonded solar cells and solder strip assembly, the flux enables the solder on the surface of the solder strip to weld the solder strip to the bonded solar cells more efficiently.

[0033] In some embodiments, the ribbon laying mechanism further includes a ribbon guide located on the traction path of the ribbon; when the ribbon traction unit pulls the ribbon out to a predetermined length, the ribbon guide is configured to move between the ribbon cutting unit and the ribbon traction unit and perform traction guidance on each ribbon; when the tail end of the first ribbon group or the second ribbon group is pulled into the ribbon guide, the ribbon guide is configured to clamp the tail end of the first ribbon group or the second ribbon group; the ribbon guide is also configured to move synchronously with the ribbon traction unit to cooperate with the ribbon traction unit to lay the first ribbon group onto the conveying mechanism, or to lay the second ribbon group onto the coated solar cell.

[0034] When the welding strip traction unit pulls the welding strip to the predetermined length, the welding strip guide unit provides traction and guidance to prevent the welding strip from shifting position. The welding strip is cut by the welding strip cutting unit, and the resulting first or second welding strip group remains within the welding strip guide unit. The welding strip traction unit continues to pull the first or second welding strip group toward the conveying mechanism. When the tail end of the first or second welding strip group is pulled into the welding strip guide unit, the welding strip guide unit clamps the tail end of the first or second welding strip group, thereby tautning the first or second welding strip group. Subsequently, the welding strip guide unit moves synchronously toward the conveying mechanism with the welding strip traction unit, and works with the welding strip traction unit to lay the first or second welding strip group onto the conveying mechanism or the coated solar cell, thereby ensuring that the first or second welding strip group is accurately laid to the target position and guaranteeing the bonding accuracy.

[0035] In some embodiments, the welding strip guide includes a first driving part, a base, a first movable plate, a second movable plate, and a second driving part, wherein: the base is disposed on the first driving part, and the first driving part is used to drive the base to rise and fall and to translate along a first horizontal direction, the first horizontal direction being parallel to the pulling direction of the welding strip; the first movable plate is slidably mounted on the base, and a plurality of first clamps are disposed on the first movable plate along a second horizontal direction; the second movable plate is slidably mounted on the base, and a plurality of second clamps are disposed on the second movable plate along a second horizontal direction, the second clamps being arranged in pairs with the first clamps, and the paired first clamps and second clamps constitute A chuck assembly, each chuck assembly being used to guide, limit, and clamp a welding strip, with a second horizontal direction perpendicular to a first horizontal direction; a second drive unit is disposed on a base, the second drive unit being configured to drive a first moving plate and a second moving plate to move along the second horizontal direction, thereby causing each first chuck and a pair of second chucks to partially close or close when they approach each other, wherein when the first chuck and the pair of second chucks are partially closed, a gap is formed between the first chuck and the pair of second chucks for guiding the movement of the welding strip, and when the first chuck and the pair of second chucks are closed, the first chuck and the pair of second chucks clamp the welding strip.

[0036] Each chuck assembly is capable of guiding and clamping the welding strip. When the welding strip enters between the corresponding first and second chucks, the first and second chucks of each chuck assembly are partially closed, allowing the welding strip to move relative to the chuck assembly and enabling the chuck assembly to guide the welding strip. When the tail end of the welding strip moves between the corresponding first and second chucks, the first and second chucks of each chuck assembly are closed, causing each chuck assembly to clamp the tail end of the corresponding welding strip. This allows the chuck assembly to work in conjunction with the welding strip traction mechanism to straighten the welding strip, and ultimately, in conjunction with the welding strip traction mechanism, accurately lay the welding strip assembly to the target position.

[0037] In some embodiments, the conveying mechanism includes a second translation component and a second carrier platform, wherein the second carrier platform is connected to a movable part of the second translation component and is used to carry and adsorb the coated solar cells; the second translation component is used to drive the second carrier platform to reciprocate in the horizontal direction, and the loading station and the fixing station are both located on the translation path of the second carrier platform; or, the conveying mechanism includes a conveyor belt, the loading station and the fixing station are located on the conveying path of the conveyor belt, and the conveyor belt is used to carry and adsorb the coated solar cells.

[0038] Two simple conveying mechanisms are provided, both of which can stably convey the coated solar cells, allowing the coated solar cells to pass sequentially through the loading station and the fixing station.

[0039] In some embodiments, the single cell fixing device further includes an air blowing assembly, which is movably disposed above the second support platform or conveyor belt and configured to blow air toward the support surface of the second support platform or conveyor belt to remove foreign objects.

[0040] By installing an air blowing component above the second bearing platform or conveyor belt, the bearing surface of the second bearing platform or conveyor belt is automatically cleaned, preventing foreign objects on the bearing surface of the second bearing platform or conveyor belt from adhering to the glued battery cells or welding strips and affecting the bonding quality.

[0041] In some embodiments, the adhesive dots are UV-curable adhesive dots, and the second support platform or conveyor belt is light-transmitting; the fastening mechanism includes a first UV light box and a second UV light box located at the fastening station and arranged vertically opposite each other, wherein: the first UV light box is used to emit UV light to cure the UV-curable adhesive dots on the upper surface of the coated solar cell, so as to bond the second solder ribbon assembly to the upper surface of the coated solar cell; the second UV light box is used to emit UV light to pass through the second support platform or conveyor belt to cure the UV-curable adhesive dots on the lower surface of the coated solar cell, so as to bond the first solder ribbon assembly to the lower surface of the coated solar cell.

[0042] When the adhesive dots are UV-cured adhesive dots, the upper and lower surfaces of the coated solar cell are simultaneously irradiated by the first and second UV light boxes arranged opposite each other, so that the solder ribbons on the upper and lower surfaces of the coated solar cell are simultaneously bonded to the coated solar cell by the cured UV-cured adhesive dots, thereby improving the bonding efficiency.

[0043] In some embodiments, the adhesive dots are thermosetting adhesive dots; the bonding mechanism includes a first heating lamp box configured to heat at a first temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to initially cure, so as to bond the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated solar cell respectively; the first heating lamp box is further configured to continue heating at a second temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to completely cure, and causing the solder on the surfaces of the first solder ribbon group and the second solder ribbon group to melt, so as to weld the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated solar cell; or, the bonding mechanism includes along The conveying mechanism includes a second heating light box and a third heating light box arranged sequentially in the conveying direction. The second heating light box is configured to heat at a first temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to initially cure, so as to bond the first and second solder ribbon groups to the lower and upper surfaces of the coated solar cell, respectively. The third heating light box is configured to heat at a second temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to completely cure, and causing the solder on the surfaces of the first and second solder ribbon groups to melt, so as to weld the first and second solder ribbon groups to the lower and upper surfaces of the coated solar cell. The second temperature is higher than the first temperature.

[0044] When the adhesive dots are thermosetting adhesive dots, the bonding mechanism is configured to allow the thermosetting adhesive dots to initially solidify at the first temperature, without melting the solder on the surface of the solder strip. At the second temperature, the thermosetting adhesive dots are finally solidified, and the solder melts to complete the welding. This bonding method of first solidifying at low temperature and then welding at high temperature provides sufficient time for the thermosetting adhesive dots to solidify completely, while also ensuring welding and avoiding over-welding. Ultimately, both the first and second solder strip groups are fixed to the coated solar cell using a dual bonding method of adhesive dots and solder, thereby ensuring the bonding strength between the first and second solder strip groups and the coated solar cell.

[0045] In some embodiments, the single-cell bonding device further includes a third conveying mechanism and a press conveyor; the press conveyor is configured to reciprocate between a press loading station and a press recycling station; an adsorption structure is provided on the bearing surface of the conveying mechanism for adsorbing the bonded cells stacked on the first welding strip group; the second conveying mechanism is further configured to pick up a press from the press conveyor located at the press loading station and press the press onto the second welding strip group located at the loading station to press the second welding strip group onto the bonded cells; a press unloading station is also provided after the bonding station on the moving path of the conveying mechanism; the third conveying mechanism is located at the press unloading station and is configured to pick up a press from the conveying mechanism and place the press onto the press conveyor located at the press recycling station.

[0046] The conveying mechanism uses an adsorption structure on its bearing surface to adsorb the coated solar cells stacked on the first welding ribbon group, ensuring that the first welding ribbon group can adhere tightly to the lower surface of the coated solar cells and preventing misalignment between the first welding ribbon group and the coated solar cells. By placing a pressure plate on the second welding ribbon group, it is ensured that the second welding ribbon group can be pressed tightly onto the upper surface of the coated solar cells, avoiding misalignment between the second welding ribbon group and the coated solar cells, and ultimately ensuring the quality of the bonding.

[0047] After the welding strip is fixed, the third handling mechanism automatically removes the press from the conveying mechanism and puts the press back on the press conveying table, so that the press conveying table can transport the press back to the press loading station, thereby realizing the recycling of the press.

[0048] In some embodiments, the single-cell bonding device further includes a fourth conveying mechanism, an inspection mechanism, a cell receiving mechanism, and an NG cell recycling mechanism, wherein: a cell unloading station is provided on the conveying path of the conveying mechanism after the press unloading station; the fourth conveying mechanism is located at the cell unloading station and is configured to take the bonded cells with solder strips attached from the conveying mechanism and transfer them to the inspection mechanism; the inspection mechanism is configured to perform quality inspection on the bonded cells with solder strips attached; the fourth conveying mechanism is also configured to transfer the qualified bonded cells with solder strips attached to the cell receiving mechanism and to transfer the unqualified bonded cells with solder strips attached to the NG cell recycling mechanism.

[0049] By incorporating a fourth handling mechanism and an inspection mechanism, the system enables the inspection and collection of glued solar cells after the solder ribbon bonding is completed, ensuring that all glued solar cells with completed solder ribbon bonding that are collected by the cell collecting mechanism are of qualified quality. The cell collecting mechanism collects the glued solar cells with completed solder ribbon bonding and can supply them to multiple subsequent cell string repair machines. Attached Figure Description

[0050] Figure 1 This is a top view of the single-cell fixing device for the battery cells in the embodiments of this application;

[0051] Figure 2 This is a top view of the components such as the battery cell supply mechanism, the first conveying mechanism, and the adhesive application mechanism in the embodiments of this application;

[0052] Figure 3 This is a three-dimensional structural diagram of the battery cell supply mechanism, the first conveying mechanism, the adhesive application mechanism, and other components in the embodiments of this application;

[0053] Figure 4 This is a top view of the components such as the welding strip laying mechanism, conveying mechanism, and fixing mechanism in the embodiments of this application;

[0054] Figure 5 This is a three-dimensional structural diagram of the components such as the welding strip laying mechanism, conveying mechanism, and fixing mechanism in the embodiments of this application;

[0055] Figure 6 for Figure 5 A magnified view of a portion of region A in the middle;

[0056] Figure 7 This is a schematic diagram of the structure of the first flipping part and the first conveying part in the embodiments of this application;

[0057] Figure 8 This is a schematic diagram of the structure of the first support platform in the embodiments of this application;

[0058] Figure 9 This is a schematic diagram of the structure of the welding strip guide and welding strip traction part in the embodiments of this application;

[0059] Figure 10 This is a schematic diagram of the solder strip guide in an embodiment of this application from one view.

[0060] Figure 11 for Figure 10 A magnified view of region B in the image;

[0061] Figure 12 This is a schematic diagram of the structure of the welding strip guide section in this embodiment of the application after omitting the cover plate, from another perspective.

[0062] Figure 13 This is a schematic diagram of the structure of components such as the air blowing mechanism and the fixing mechanism in the embodiments of this application;

[0063] Figure 14 This is a schematic diagram of the first welding strip group, the coated battery cells, and the second welding strip group stacked on the second support platform.

[0064] Figure 15 This is a schematic diagram of the battery string repair process.

[0065] Figures 1 to 15 Includes:

[0066] Cell supplier 1:

[0067] Transfer section 11, second inspection section 12, material box 13, second NG receiving section 14, second inspection table 121, second camera 122, rotary gripper 141, NG material box 142;

[0068] First transport mechanism 2;

[0069] Glue application mechanism 3:

[0070] Glue application bearing section 31, glue application section 32, first flipping section 33, first conveying section 34, second conveying section 35, first NG receiving section 36, first detection section 37, first translation assembly 311, first bearing platform 312, first clearance groove 313, adsorption hole 314; flipping

[0071] Rotary drive assembly 331, adsorption plate 332, and grading assembly 333;

[0072] Welding strip laying mechanism 4:

[0073] 41. Welding strip feeding section; 42. Welding strip pressing section; 43. Welding strip cutting section; 44. Welding strip traction section; 45. Flux coating section; 46. Welding strip guiding section; 460. First drive section; 461. Base; 462. First moving plate

[0074] 462, second moving plate; 463, second driving unit; 464, first chuck; 465, second chuck; 466;

[0075] Second handling mechanism 5;

[0076] Conveying mechanism 6: Second translation component 61, second support platform 62;

[0077] Fixed connection mechanism 7: First UV lamp box 71, second UV lamp box 72, first heating lamp box 73;

[0078] Air blowing assembly 8;

[0079] Third transport unit 9;

[0080] Press conveyor table 10;

[0081] Fourth transport unit 110;

[0082] Testing agency 120;

[0083] Battery cell receiving mechanism 130: discharge conveying unit 131, detection unit 132, third NG receiving unit 133, receiving unit 134;

[0084] NG film recycling agency 140. Detailed Implementation

[0085] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0086] like Figures 1 to 6 As shown, the single-cell bonding device of this application includes a cell supply mechanism 1, a first conveying mechanism 2, a glue application mechanism 3, a second conveying mechanism 5, a ribbon laying mechanism 4, a conveying mechanism 6, and a bonding mechanism 7, wherein:

[0087] The first conveying mechanism 2 is configured to pick up an initial cell from the cell supply mechanism 1 and convey the picked-up initial cell to the adhesive application mechanism 3, which is configured to apply adhesive dots to both sides of the initial cell to obtain an adhesive-coated cell.

[0088] The conveying mechanism 6 has a feeding station and a fixing station on its conveying path.

[0089] The ribbon laying mechanism 4 is configured to lay the first ribbon set onto the conveying mechanism 6 at the loading station. The second handling mechanism 5 is configured to pick up a coated solar cell from the coating mechanism 3 and stack the picked-up coated solar cell onto the first ribbon set. The ribbon laying mechanism 4 is also configured to stack the second ribbon set onto the coated solar cell.

[0090] The conveying mechanism 6 is configured to transport the stacked first welding strip group, the glued battery cells and the second welding strip group to the bonding station.

[0091] The bonding mechanism 7 is located at the bonding station and is configured to bond the first and second ribbon groups delivered to the bonding station to the glued solar cell at least via adhesive dots.

[0092] The first and second solder strip groups each consist of several solder strips. Typically, the number of solder strips in the first and second solder strip groups is the same. The number of solder strips in the first solder strip group is equal to the number of solder strips connected to the lower surface of the defective cells in the battery string to be repaired, and the number of solder strips in the second solder strip group is equal to the number of solder strips connected to the upper surface of the defective cells in the battery string to be repaired.

[0093] The solder strip is a copper strip with a coating (i.e., solder). The coating can be a tin coating, a SnBiAg (tin-bismuth-silver) alloy layer, or other metal or alloy layers.

[0094] The initial solar cells are those supplied by the solar cell supplier without adhesive dots. The coated solar cells have several rows of adhesive dots on both their upper and lower surfaces. Specifically, each row of adhesive dots on the lower surface of the coated solar cell corresponds one-to-one with a solder ribbon in the first solder ribbon group. Each solder ribbon in the first solder ribbon group is bonded to the lower surface of the solar cell via a corresponding row of adhesive dots. Similarly, each row of adhesive dots on the upper surface of the coated solar cell corresponds one-to-one with a solder ribbon in the second solder ribbon group. Each solder ribbon in the second solder ribbon group is bonded to the upper surface of the solar cell via a corresponding row of adhesive dots, with each row of adhesive dots including at least two adhesive dots.

[0095] The working process of the single-cell fixing device in this embodiment is as follows:

[0096] The first conveying mechanism 2 picks up an initial solar cell from the solar cell supply mechanism 1 and conveys the picked-up initial solar cell to the adhesive application mechanism 3. The adhesive application mechanism 3 applies adhesive dots to both sides of the initial solar cell to obtain an adhesive-coated solar cell.

[0097] The welding strip laying mechanism 4 lays the first welding strip group onto the conveying mechanism 6 at the feeding station. The second handling mechanism 5 picks up a piece of glued battery cell from the glue application mechanism 3 and stacks the picked-up glued battery cell onto the first welding strip group. The welding strip laying mechanism 4 then stacks the second welding strip group onto the glued battery cell.

[0098] Subsequently, the conveying mechanism 6 transports the stacked first welding strip group, the glued battery cells, and the second welding strip group to the fixing station.

[0099] Finally, the bonding mechanism 7 will fix the first and second welding strip groups, which are transported to the bonding station, to the glued solar cell at least by adhesive dots.

[0100] As can be seen, the single-cell bonding device for solar cells provided in this application includes an adhesive application mechanism 3. After the first transport mechanism 2 transports the initial solar cell onto the adhesive application mechanism 3, the adhesive application mechanism 3 can apply adhesive dots for connecting the solder ribbons to both sides of the initial solar cell. The second transport mechanism 5 and the solder ribbon laying mechanism 4 cooperate to stack the first solder ribbon group, the adhesive-coated solar cell with adhesive dots, and the second solder ribbon group onto the conveying mechanism 6. Finally, the bonding mechanism 7 fixes the first solder ribbon group and the second solder ribbon group onto the adhesive-coated solar cell via the adhesive dots on the adhesive-coated solar cell, thereby obtaining a replacement solar cell for repair.

[0101] Depending on the position of the defective cell to be replaced within the battery string to be repaired (head, middle, or tail), the corresponding replacement cells are categorized as head replacement cells, middle replacement cells, and tail replacement cells. The solder ribbons on these three types of replacement cells may or may not extend beyond the cell, and the length of the extended portion may also differ. In actual production, solder ribbons of the required length for each type of replacement cell can be directly prepared during the preparation of the first or second solder ribbon group, and then fixed to the coated cell. Alternatively, the first or second solder ribbon group can be prepared with a uniform length, and after fixing to the coated cell, the length of the solder ribbon group can be trimmed to meet the requirements of each type of replacement cell.

[0102] To facilitate the laying of the first and second weld strip groups, such as Figure 14 As shown, optionally, the first conveying mechanism 2 stacks the picked-up adhesive-coated solar cell 100 onto the first solder ribbon group 201, such that the first end (e.g., the right end) of the first solder ribbon group 201 extends outward toward the first side (e.g., the right side) of the adhesive-coated solar cell 100, while the second end (e.g., the left end) of the first solder ribbon group 201 is located below the adhesive-coated solar cell 100 and does not extend outward. The solder ribbon laying mechanism 4 stacks the second solder ribbon group 202 onto the adhesive-coated solar cell, such that the first end (e.g., the right end) of the second solder ribbon group 202 is located above the adhesive-coated solar cell 100 and does not extend outward, while the second end (e.g., the left end) of the second solder ribbon group 202 extends outward toward the second side (e.g., the left side) of the adhesive-coated solar cell 100.

[0103] In this way, it can be ensured that one end of the first solder strip group 201 and the second solder strip group 202, which are fixed to both sides of the adhesive-bonded solar cell 100, extends outward from the first side and the second side of the adhesive-bonded solar cell 100, respectively. Subsequently, when the replacement solar cell is supplied to the later rework machine, the extended end (or extended solder strip) of at least one of the first solder strip group 201 and the second solder strip group 202 can be cut according to the specific type of replacement solar cell required, thereby cutting the replacement solar cell into the required head replacement solar cell, middle replacement solar cell, or tail replacement solar cell.

[0104] like Figures 1 to 6As shown, optionally, the adhesive application mechanism 3 includes an adhesive application support unit 31, an adhesive application unit 32, a first flipping unit 33, a first transport unit 34, a second transport unit 35, and a first detection unit 37, wherein: the first transport unit 2 is configured to transport the picked-up initial battery cell to the adhesive application support unit 31, and the movement path of the adhesive application support unit 31 is provided with an adhesive application station and a flipping station. The adhesive application unit 32 is located at the adhesive application station and is configured to apply adhesive dots to the first surface of the initial battery cell that has moved to the adhesive application station and to the second surface of the initial battery cell that has been flipped. The first flipping unit 33 is located at the flipping station and is configured to pick up the initial battery cell that has been coated on the first surface from the adhesive application support unit 31 that has moved to the flipping station, and to flip the picked-up initial battery cell. The first transport unit 34 is configured to pick up the flipped initial battery cell from the first flipping unit 33 and to place the picked-up initial battery cell onto the adhesive application support unit 31. The second transport unit 35 is configured to pick up coated solar cells from the coating support unit 31 and transport them to the first inspection unit 37. The first inspection unit 37 is configured to perform defect detection and location on the coated solar cells. The second transport mechanism 5 is configured to pick up qualified coated solar cells from the first inspection unit 37 and stack them onto the first welding strip group on the conveying mechanism 6 according to their position information.

[0105] The specific coating process of the coating mechanism 3 for the initial solar cells is as follows:

[0106] After the first transport mechanism 2 transports the picked-up initial battery cell to the adhesive application support unit 31, the adhesive application support unit 31 moves to the adhesive application station, and the adhesive application unit 32 applies adhesive dots to the first surface of the initial battery cell.

[0107] Next, the adhesive application carrier 31 moves to the flipping station. The first flipping unit 33 picks up the initial battery cell with the first surface adhesive applied from the adhesive application carrier 31 and flips the initial battery cell so that the second surface of the initial battery cell with no adhesive dots is facing upward.

[0108] Subsequently, the first transport unit 34 picks up the initial battery cell that has been flipped from the first flipping unit 33 and puts the picked-up initial battery cell back onto the adhesive application support unit 31.

[0109] The adhesive application carrier 31 moves to the adhesive application station again, and the adhesive application unit 32 applies adhesive dots to the second surface of the initial battery cell to obtain an adhesive battery cell.

[0110] Next, the second transport unit 35 picks up the coated battery cell from the coating carrier unit 31 and transports it to the first inspection unit 37. The first inspection unit 37 performs defect detection and positioning on the coated battery cell to confirm whether the coated battery cell is qualified, and at the same time obtains the position information of the coated battery cell.

[0111] Finally, the second transport mechanism 5 picks up the qualified coated solar cells from the first inspection unit 37 and stacks them onto the first welding strip group on the transport mechanism 6 according to their position information.

[0112] By configuring the adhesive application mechanism 3, only one adhesive application section 32 is needed to sequentially complete the adhesive application operations on the first and second surfaces of the initial battery cell, thereby obtaining an adhesive-coated battery cell. This reduces the cost and size of the adhesive application mechanism 3. Furthermore, by using the first detection section 37 to detect and locate defects in the adhesive-coated battery cell, it can be ensured that the second handling mechanism 5 accurately stacks qualified adhesive-coated battery cells onto the first welding strip group on the conveying mechanism 6.

[0113] like Figure 2 As shown, optionally, the adhesive application support unit 31 includes a first translation component 311 and a first support platform 312, wherein the first support platform 312 is connected to the movable part of the first translation component 311 and is used to support the initial battery cell. The first translation component 311 is used to drive the first support platform 312 to reciprocate horizontally, and both the adhesive application station and the flipping station are located on the translation path of the first support platform 312.

[0114] The first translation component 311 can be any existing type of linear module, such as a linear module consisting of a motor, a lead screw, and a lead screw nut, or a belt module consisting of a motor, a belt, and a slider, as long as it can drive the first support platform 312 to reciprocate in the horizontal direction.

[0115] As described above, adhesive dots are applied in rows to the surface of the initial solar cell. To prevent the adhesive dots on the first surface of the flipped initial solar cell from touching the bearing surface of the first support platform 312 and causing damage to the adhesive dots, [further details are needed]. Figure 8 As shown, optionally, a plurality of first clearance grooves 313 are arranged side by side at intervals on the first support platform 312. The first clearance grooves 313 are used to avoid adhesive dots on the initial battery cell after it has been flipped. That is, when the initial battery cell after it has been flipped is placed on the first support platform 312, each row of adhesive dots on the first surface of the initial battery cell is located at each row of first clearance grooves 313, so as to avoid the adhesive dots from contacting the support surface of the first support platform 312.

[0116] like Figure 8 As shown, optionally, an adsorption hole 314 for adsorbing the initial battery cell is also provided between adjacent first clearance grooves 313. The first support platform 312 adsorbs and fixes the initial battery cell through the adsorption hole 314 to prevent the initial battery cell from being misaligned during movement.

[0117] Optionally, the first inspection unit 37 includes a first inspection table and a first camera, wherein the second transport unit 35 transports the coated solar cells onto the first inspection table. A plurality of second clearance grooves are arranged side-by-side at intervals on the bearing surface of the first inspection table, the second clearance grooves being used to avoid adhesive dots on the coated solar cells. The first camera is located above the first inspection table, and the first camera is used to photograph the coated solar cells located on the first inspection table to perform defect detection and location of the coated solar cells.

[0118] Similarly, by providing second clearance grooves at intervals on the bearing surface of the first testing station to avoid the adhesive dots on the applied solar cells, it is possible to prevent the adhesive dots on the initial solar cells from touching the bearing surface of the first testing station and causing the adhesive dots to be damaged.

[0119] Optionally, the first camera is connected to the PLC controller. After the first camera takes a picture of the coated solar cell on the first inspection table, it sends the image of the coated solar cell to the PLC controller. The PLC controller executes the image recognition algorithm stored in it to perform image analysis (such as grayscale analysis) on the image, thereby obtaining the position information of the coated solar cell and completing the defect detection of the coated solar cell.

[0120] like Figure 2 As shown, optionally, the coating mechanism 3 also includes a first NG receiving section (not shown in the figure). When the coated solar cells on the first detection section 37 are determined to be defective, the second transport mechanism 5 or the second transport section 35 picks up the defective coated solar cells from the first detection section 37 and transports them to the first NG receiving section, where the first NG receiving section recycles the defective coated solar cells. Optionally, the first NG receiving section includes an NG container, and the second transport mechanism 5 or the second transport section 35 directly places the picked-up defective coated solar cells into the NG container.

[0121] like Figure 7 As shown, optionally, the first flipping unit 33 includes a flipping drive assembly 331 and an adsorption plate 332. The adsorption plate 332 is connected to the drive end of the flipping drive assembly 331. At least one surface of the adsorption plate 332 is an adsorption surface, and a plurality of third clearance grooves are arranged side by side at intervals on the adsorption surface. The third clearance grooves are used to avoid adhesive dots applied to the first surface of the initial battery cell. When the flipping drive assembly 331 flips the adsorption plate 332 so that the adsorption surface faces down, the adsorption plate 332 picks up the initial battery cell with the first surface adhesive applied from the adhesive application support 31 located at the flipping station. When the flipping drive assembly 331 flips the adsorption plate 332 so that the adsorption surface faces up, the initial battery cell is flipped. The first conveying unit 34 is configured to pick up the flipped initial battery cell from the adsorption plate 332.

[0122] Specifically, when the adhesive application carrier 31 transports the initial solar cell with the first surface adhesive applied to the flipping station, the flipping drive assembly 331 flips the adsorption plate 332 so that the adsorption surface faces down, allowing the adsorption plate 332 to pick up the initial solar cell from the adhesive application carrier 31. Subsequently, the flipping drive assembly 331 flips the adsorption plate 332 so that the adsorption surface faces up, thereby flipping the initial solar cell so that the un-adheded second surface of the initial solar cell faces up.

[0123] Because a third clearance groove is provided on the adsorption surface of the adsorption plate 332, the adsorption plate 332 can avoid the adhesive dots on the first surface of the initial battery cell when it picks up the initial battery cell after the first surface adhesive has been applied, thereby preventing the adhesive dots on the first surface of the initial battery cell from contacting the adsorption surface of the adsorption plate 332 and causing the adhesive dots to be damaged.

[0124] Optionally, the adsorption plate 332 is provided with an air chamber connected to a compressed air source, and an outward-facing air slit is provided at the edge of the adsorption surface of the adsorption plate 332. When the adsorption surface of the adsorption plate 332 is flipped downwards, the high-pressure gas supplied by the compressed air source enters the air chamber in the adsorption plate 332 and is blown out at high speed towards the outside of the adsorption surface of the adsorption plate 332 through the air slit, causing a Bernoulli adsorption zone to be generated below the adsorption surface of the adsorption plate 332, thereby achieving the adsorption of the initial solar cell. Of course, adsorption holes can also be provided on the adsorption surface of the adsorption plate 332, and the adsorption plate 332 adsorbs the initial solar cell through the adsorption holes.

[0125] like Figure 7 As shown, optionally, the single-cell fixing device also includes a straightening component 333 disposed on the side of the adsorption plate 332. The straightening component 333 is configured to correct the position of the initial cell that has been flipped on the adsorption plate 332. The first transport unit 34 is configured to pick up the initial cell that has been flipped and corrected from the adsorption plate 332. In this way, it can be ensured that the first transport unit 34 can smoothly pick up the initial cell that has been flipped from the first flipping unit 33 and accurately place the initial cell back onto the adhesive application support unit 31.

[0126] The sizing component 333 may include, for example, a sizing plate disposed on a first side of the adsorption plate 332, and sizing wheels disposed on opposite second and third sides of the adsorption plate 332. When the sizing plate moves toward the adsorption plate 332, it can correct the position of the long side of the initial solar cell; when the sizing wheels on both sides move synchronously toward the adsorption plate 332, they can correct the position of the short side of the initial solar cell.

[0127] The glue application section 32 can be equipped with various existing glue application devices such as screen printing devices and dispensing devices.

[0128] Optionally, the single-cell bonding device also includes a glue dot detection component, such as a vision camera and a light source. The glue dot detection component is located after the glue application section 32 and between the glue application section 32 and the first detection section 37. After the glue application section 32 applies glue to one side of the initial cell on the glue application support section 31, the glue application support section 31 then moves the initial cell to the area below the glue dot detection component for glue dot detection. After the glue dot detection on the second surface is completed, the second transport section 35 transports the glued cell to the first detection section 37 or the first NG receiving section.

[0129] In another embodiment, the adhesive application mechanism 3 includes a first adhesive application support, a first adhesive application section, a second flipping section, a second adhesive application support, a second adhesive application section, a third transport section, and a third detection section. The first transport mechanism 2 is configured to transport the picked-up initial battery cell to the first adhesive application support. A first adhesive application station and a flipping station are provided along the movement path of the first adhesive application support. The first adhesive application section is located at the first adhesive application station and is configured to apply adhesive dots to the first surface of the initial battery cell that has moved to the first adhesive application station. The second flipping section is located at the flipping station and is configured to pick up the initial battery cell with the first surface adhesive applied from the first adhesive application support that has moved to the flipping station, and to place the picked-up initial battery cell onto the second adhesive application support after flipping it over. A second adhesive application station is provided along the movement path of the second adhesive application support. The second adhesive application section is located at the second adhesive application station and is configured to apply adhesive dots to the second surface of the initial battery cell that has moved to the second adhesive application station. The third transport unit is configured to pick up coated solar cells from the second coating support unit and transport them to the third inspection unit. The third inspection unit is configured to perform defect detection and location on the coated solar cells. The second transport mechanism 5 is configured to pick up qualified coated solar cells from the third inspection unit and stack them onto the first solder strip group according to their position information.

[0130] Because there are two adhesive application sections, while the second adhesive application section is applying adhesive to the second surface of one initial solar cell, the first adhesive application section can simultaneously apply adhesive to the first surface of another initial solar cell, thereby improving adhesive application efficiency. Furthermore, by using a second inspection section to detect and locate defects in the coated solar cells, it can be ensured that the second transport mechanism 5 accurately stacks only qualified coated solar cells onto the first welding strip group on the conveyor mechanism 6, preventing unqualified coated solar cells from flowing into the subsequent bonding station.

[0131] Both the first and second adhesive application support units can adopt the same or similar structure as the adhesive application support unit 31 in the previous embodiment, that is, a support platform driven by a translation component. Both the first and second adhesive application units can adopt various existing adhesive application devices such as screen printing devices and dispensing devices.

[0132] The second flipping section can adopt a structure similar to the first flipping section 33 in the previous embodiment. For example, the second flipping section consists of a flipping drive assembly and an adsorption assembly connected to the flipping drive assembly. After the adsorption assembly adsorbs the initial battery cell that has completed the first surface coating, the second flipping section drives the adsorption assembly to flip, thereby completing the flipping of the initial battery cell. Subsequently, the flipped initial battery cell is removed from the adsorption assembly by a conveying component additionally provided on the side of the second flipping section and placed on the second coating support section.

[0133] Of course, the second flipping unit can directly place the flipped initial battery cell onto the second adhesive application support unit. For example, the second flipping unit also includes a moving part for driving the adsorption assembly to rise, fall, and translate. The adsorption assembly consists of two spaced-apart adsorption strips, and the support surface of the second adhesive application support unit has two clearance grooves that correspond one-to-one with the two adsorption strips. After flipping the initial battery cell, the moving part first drives the adsorption assembly to descend, causing the two adsorption strips to sink into the corresponding clearance grooves, and the initial battery cell to fall onto the support surface of the second adhesive application support unit. Subsequently, the moving part drives the adsorption assembly to translate away from the second adhesive application support unit, causing the two adsorption strips to be pulled out of the clearance grooves.

[0134] The third inspection unit may adopt the same or similar structure as the first inspection unit 37 in the previous embodiment. For example, the third inspection unit includes a third inspection table and a third camera, wherein: the third transport unit transports the coated battery cells to the third inspection table, the third camera is located above the third inspection table, and the third camera is used to take pictures of the coated battery cells located on the third inspection table in order to perform defect detection and positioning of the coated battery cells.

[0135] like Figures 1 to 3 As shown, optionally, the cell supply mechanism 1 includes a transfer unit 11, a second inspection unit 12, and a second NG receiving unit 14, wherein: the second inspection unit 12 includes a second inspection table 121 and a second camera 122. The transfer unit 11 is configured to pick up initial cells from the material box 13 and transfer the picked-up initial cells to the second inspection table 121. The second camera 122 is located above the second inspection table 121 and is used to photograph the initial cells located on the second inspection table 121 to perform defect detection and location of the initial cells. The first transport mechanism 2 is configured to pick up qualified initial cells from the second inspection table 121 and transport the initial cells to the coating mechanism 3 according to the position information of the initial cells. The first transport mechanism 2 is also configured to pick up unqualified initial cells from the second inspection table 121 and transport the picked-up unqualified initial cells to the second NG receiving unit 14.

[0136] Through the cooperation of the transfer unit 11, the second inspection unit 12 and the second NG receiving unit, the cell supply mechanism 1 realizes the automatic feeding of initial cells and the detection and positioning of defects in the initial cells, thereby ensuring that the first handling mechanism 2 accurately stacks qualified initial cells onto the gluing mechanism 3, ensuring the gluing accuracy of the first surface of the initial cells, while unqualified initial cells are recycled to the second NG receiving unit 14.

[0137] Optionally, the second camera 122 is connected to the PLC controller. After the second camera 122 takes a picture of the initial solar cell on the second inspection station 121, it sends the image of the initial solar cell to the PLC controller. The PLC controller executes the image recognition algorithm stored within it to perform image analysis (such as grayscale analysis) to obtain the position information of the initial solar cell and to confirm whether there are defects in the initial solar cell. The types of defects may include, for example, appearance defects such as edge chipping and cracking.

[0138] Optionally, the second NG receiving unit 14 includes an NG material box 142, wherein the first conveying mechanism 2 directly places the picked-up defective initial battery cells into the NG material box 142. Alternatively, the second NG receiving unit 14 further includes a rotary gripper 141, wherein the rotary gripper 141 is positioned above the NG material box 142, the first conveying mechanism 2 transports the picked-up defective initial battery cells to the rotary gripper 141, the rotary gripper 141 rotates to a suction cup-up position to receive the defective initial battery cells from the first conveying mechanism 2, and then rotates to a suction cup-down position to release the defective initial battery cells into the NG material box 142 below.

[0139] like Figures 4 to 6 As shown, optionally, the ribbon laying mechanism 4 includes a ribbon feeding section 41, a ribbon pressing section 42, a ribbon cutting section 43, and a ribbon traction section 44. The ribbon feeding section 41 is configured to feed out multiple ribbons, each ribbon passing sequentially through the ribbon pressing section 42 and the ribbon cutting section 43 before being clamped by the ribbon traction section 44. The ribbon traction section 44 is configured to move away from the ribbon cutting section 43 to pull out the ribbons. The ribbon pressing section 42 is configured to press each ribbon, and the ribbon cutting section 43 is configured to cut the pressed ribbons to obtain a first ribbon group or a second ribbon group. The ribbon traction section 44 is also configured to lay the first ribbon group onto the conveying mechanism 6, or lay the second ribbon group onto the coated solar cell.

[0140] As can be seen, through the cooperation of the welding strip feeding part 41, the welding strip pressing part 42, the welding strip cutting part 43 and the welding strip traction part 44, the welding strip laying mechanism 4 realizes the automatic preparation of the first welding strip group and the second welding strip group, and realizes the automatic laying of the first welding strip group and the second welding strip group.

[0141] Optionally, the solder strip laying mechanism 4 further includes a flux coating section 45, which is disposed between the solder strip feeding section 41 and the solder strip clamping section 42. Multiple solder strips released from the solder strip feeding section 41 pass sequentially through the flux coating section 45, the solder strip clamping section 42, and the solder strip cutting section 43, and are then clamped by the solder strip traction section 44. The flux coating section 45 is configured to apply flux to each solder strip.

[0142] By providing a flux coating section 45, flux can be automatically applied to each solder strip during the solder strip traction process.

[0143] Optionally, the specific structure of the welding strip feeding section 41, welding strip pressing section 42, welding strip cutting section 43, welding strip pulling section 44 and flux coating section 45 can adopt any existing structure, as long as it can realize the feeding, pressing, cutting, clamping and pulling and flux coating of each welding strip.

[0144] like Figure 9 As shown, optionally, the ribbon laying mechanism 4 also includes a ribbon guide 46 located on the ribbon traction path. When the ribbon traction unit 44 pulls the ribbon to a predetermined length, the ribbon guide 46 is configured to move between the ribbon cutting unit 43 and the ribbon traction unit 44 and provide traction guidance for each ribbon. When the tail end of the first or second ribbon group is pulled into the ribbon guide 46, the ribbon guide 46 is configured to clamp the tail end of the first or second ribbon group. The ribbon guide 46 is also configured to move synchronously with the ribbon traction unit 44 to cooperate with the ribbon traction unit 44 in laying the first ribbon group onto the conveying mechanism 6, or laying the second ribbon group onto the coated solar cell.

[0145] Specifically, the optional operating process of the welding strip guide 46 is as follows:

[0146] In the initial state, the welding strip guide 46 is in a low position to avoid obstacles, and the welding strip traction part 44 can pass smoothly over the welding strip guide 46 to clamp the free end of the welding strip from the welding strip cutting part 43.

[0147] When the welding strip traction unit 44 pulls the welding strip to the predetermined length, that is, when the welding strip traction unit 44 moves to the rear side of the welding strip guide unit 46, the welding strip guide unit 46 rises and approaches the welding strip, so that the welding strip enters the welding strip guide unit 46. The welding strip guide unit 46 can then perform traction and guidance on each welding strip to prevent the welding strip from shifting position during the traction process.

[0148] The welding strip is cut by the welding strip cutting part 43, and the resulting first or second welding strip group is held in the welding strip guide part 46. The welding strip traction part 44 continues to pull the first or second welding strip group toward the conveying mechanism 6. When the tail end of the first or second welding strip group is pulled to the clamping end of the welding strip guide part 46, the welding strip guide part 46 clamps the tail end of the first or second welding strip group, and the first or second welding strip group is taut.

[0149] Subsequently, the welding strip guide 46 moves synchronously toward the conveying mechanism 6 along with the welding strip traction part 44, and finally cooperates with the welding strip traction part 44 to lay the first welding strip group or the second welding strip group onto the conveying mechanism 6 or the glued battery cell, ensuring that the first welding strip group or the second welding strip group is accurately laid to the target position.

[0150] like Figures 9 to 12 As shown, optionally, the welding strip guide portion 46 includes a first drive portion 460, a base 461, a first moving plate 462, a second moving plate 463, and a second drive portion 464, wherein: the base 461 is disposed on the first drive portion 460, and the first drive portion 460 is used to drive the base 461 to rise and fall and to translate along a first horizontal direction (e.g., the X direction), the first horizontal direction being parallel to the pulling direction of the welding strip. The first moving plate 462 is slidably mounted on the base 461, and a plurality of first clamps 465 are disposed on the first moving plate 462 along a second horizontal direction (e.g., the Y direction). The second moving plate 463 is slidably mounted on the base 461, and a plurality of second clamps 466 are disposed on the second moving plate 463 along the second horizontal direction. The second clamps 466 and the first clamps 465 are arranged in pairs, and the pairs of first clamps 465 and second clamps 466 constitute a clamp assembly. Each clamp assembly is used to guide, limit, and clamp a welding strip, and the second horizontal direction is perpendicular to the first horizontal direction.

[0151] The second drive unit 464 is disposed on the base 461. The second drive unit 464 is configured to drive the first moving plate 462 and the second moving plate 463 to move along the second horizontal direction, so as to drive each first clamp 465 and the paired second clamp 466 to partially close or close when they are close to each other, and to drive each first clamp 465 and the paired second clamp 466 to open when they are far apart from each other. When the first clamp 465 and the paired second clamp 466 are partially closed, a gap is formed between the first clamp 465 and the paired second clamp 466 for guiding the movement of the welding strip. When the first clamp 465 and the paired second clamp 466 are closed, the first clamp 465 and the paired second clamp 466 clamp the welding strip. When the first clamp 465 and the paired second clamp 466 are open, the welding strip can easily enter between the first clamp 465 and the paired second clamp 466.

[0152] When the welding strip guide 46 is in the low clearance position, the first chuck 465 and the second chuck 466 of each chuck assembly are fully open. When the welding strip traction part 44 pulls the welding strip to a predetermined length, the first drive part 460 drives the base 461 to rise, so that the welding strip enters between the first chuck 465 and the second chuck 466 of each chuck assembly in a corresponding manner.

[0153] Subsequently, the second drive unit 464 drives the first moving plate 462 and the second moving plate 463 to move along the second horizontal direction, so that the first chuck 465 and the second chuck 466 of each chuck assembly switch to a semi-closed state. At this time, each chuck assembly can guide the corresponding welding strip.

[0154] When the tail end of the first or second strip group is pulled between the first chuck 465 and the second chuck 466, the second drive unit 464 drives the first moving plate 462 and the second moving plate 463 to continue moving along the second horizontal direction, so that the first chuck 465 and the second chuck 466 of each chuck assembly switch to the closed state, and each chuck assembly clamps a strip.

[0155] Next, the first drive unit 460 drives the base 461 to move synchronously with the welding strip traction unit 44, so that each clamp assembly cooperates with the welding strip traction unit 44 to accurately lay the taut first welding strip group or second welding strip group to the target position.

[0156] The first drive unit 460 can employ various existing drive devices capable of driving the base 461 to rise, fall, and translate. For example, the first drive unit 460 includes a translation drive module and a lifting drive module, wherein the lifting drive module is connected to the movable part of the translation drive module, and the base 461 is connected to the movable part of the lifting drive module. The lifting drive module is used to drive the base 461 to rise and fall, and the translation drive module is used to drive the base 461 to translate along a first horizontal direction. Both the translation drive module and the lifting drive module can employ various existing types of linear modules, such as linear modules composed of a motor, a lead screw, and a lead screw nut.

[0157] The second drive unit 464 can employ various existing drive devices capable of driving the first moving plate 462 and the second moving plate 463 to move relative to each other along a second horizontal direction. For example, the second drive unit 464 includes a first drive assembly and a second drive assembly, wherein the movable part of the first drive assembly is connected to the first moving plate 462, and the movable part of the second drive assembly is connected to the second moving plate 463. The first drive assembly and the second drive assembly are configured to synchronously drive the first moving plate 462 and the second moving plate 463 to move closer to or further away from each other along the second horizontal direction, thereby causing the first chuck 465 and the second chuck 466 of each chuck assembly to move closer to or further away from each other, so as to achieve partial closure, closure, or full opening.

[0158] like Figure 4 As shown, in one optional embodiment, the conveying mechanism 6 includes a second translation component 61 and a second support platform 62. The second support platform 62 is connected to the movable part of the second translation component 61. The second support platform 62 is used to carry and adsorb the coated battery cells. The second translation component 61 is used to drive the second support platform 62 to reciprocate horizontally. The loading station and the fixing station are both located on the translation path of the second support platform 62. The second translation component 61 can be any existing type of linear module, such as a linear module composed of a motor, a lead screw, and a lead screw nut, as long as it can drive the second support platform 62 to reciprocate horizontally.

[0159] In another alternative embodiment, the conveying mechanism 6 includes a conveyor belt, with a feeding station and a fixing station located on the conveying path of the conveyor belt, which is used to carry and adsorb the coated battery cells.

[0160] Both of the above-mentioned conveying mechanisms 6 can stably convey the coated solar cells, allowing the coated solar cells to pass through the loading station and the fixing station in sequence.

[0161] Optionally, to prevent adhesive dots on the coated solar cells from sticking to the second support platform 62 or the conveyor belt, an anti-sticking layer, such as a Teflon coating, can be applied to the second support platform 62 or the conveyor belt.

[0162] like Figure 6 and Figure 13 As shown, optionally, the single-cell fixing device of the battery cell in this embodiment of the application further includes an air blowing assembly 8, which is movably disposed above the second support platform 62 or the conveyor belt and is configured to blow air toward the support surface of the second support platform 62 or the conveyor belt to remove foreign objects.

[0163] By installing an air blowing assembly 8 above the second support platform 62 or the conveyor belt, air blowing is used to clean the bearing surface of the second support platform 62 or the conveyor belt, preventing foreign objects from adhering to the coated battery cells or welding strips. The air blowing assembly 8 can be, for example, a nozzle or air blowing pipe connected to a compressed air source.

[0164] In some embodiments, the adhesive dots on the coated solar cells are UV-cured adhesive dots. Optionally, the second support platform 62 or the conveyor belt is light-transmitting, such as... Figure 12 As shown, the bonding mechanism 7 includes a first UV light box 71 and a second UV light box 72 located at the bonding station and arranged vertically opposite each other. The first UV light box 71 emits UV light to cure UV-cured adhesive dots on the upper surface of the coated solar cell, thereby bonding the second solder ribbon assembly to the upper surface of the coated solar cell. The second UV light box 72 emits UV light to cure UV-cured adhesive dots on the lower surface of the coated solar cell through the second support platform 62 or the conveyor belt, thereby bonding the first solder ribbon assembly to the lower surface of the coated solar cell.

[0165] When the adhesive dots are UV-cured adhesive dots, the upper and lower surfaces of the coated solar cell are synchronously irradiated with UV light by the first UV light box 71 and the second UV light box 72 arranged opposite to each other, so that the solder ribbons on the upper and lower surfaces of the coated solar cell are synchronously bonded to the coated solar cell by the cured UV-cured adhesive dots, thereby improving the bonding efficiency.

[0166] In other embodiments, the adhesive dots are thermosetting adhesive dots.

[0167] Optionally, the bonding mechanism 7 includes a first heating lamp box 71, which is configured to heat at a first temperature to initially cure the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell, thereby bonding the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated solar cell, respectively. The first heating lamp box 71 is further configured to continue heating at a second temperature to completely cure the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell, and to melt the solder on the surfaces of the first solder ribbon group and the second solder ribbon group, thereby welding the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated solar cell.

[0168] Alternatively, the bonding mechanism 7 may include a second heating lamp box and a third heating lamp box arranged sequentially along the conveying direction of the conveying mechanism 6. The second heating lamp box is configured to heat at a first temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to initially cure, thereby bonding the first and second solder ribbon groups to the lower and upper surfaces of the coated solar cell, respectively. The third heating lamp box is configured to heat at a second temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to completely cure, and melting the solder on the surfaces of the first and second solder ribbon groups, thereby welding the first and second solder ribbon groups to the lower and upper surfaces of the coated solar cell, wherein the second temperature is higher than the first temperature.

[0169] The curing temperature of the thermosetting adhesive is lower than the melting point of the solder on the solder strip surface. The first temperature is higher than the curing temperature of the thermosetting adhesive but lower than the melting point of the solder on the solder strip surface, and the second temperature is higher than the melting point of the solder on the solder strip surface.

[0170] Because thermosetting adhesive dots require a longer curing time, while the solder on the surface of the solder ribbon melts in a shorter time, directly heating at the second temperature would result in over-soldering when the thermosetting adhesive dots are fully cured. By allowing the thermosetting adhesive dots to initially cure at the first temperature without melting the solder on the surface of the solder ribbon, and then allowing the thermosetting adhesive dots to fully cure and the solder to melt at the second temperature, this method of first curing at a low temperature and then welding at a high temperature provides sufficient time for the thermosetting adhesive dots to cure completely, while also ensuring welding while avoiding over-soldering. Ultimately, both the first and second solder ribbon groups are fixed to the coated solar cell using a dual fixation method of adhesive dots and solder, thus ensuring the bonding strength between the first and second solder ribbon groups and the coated solar cell.

[0171] Optionally, the bearing surface of the conveying mechanism 6 is provided with an adsorption structure, such as an adsorption hole. The adsorption structure is used to adsorb the coated solar cells stacked on the first ribbon group, thereby ensuring that the first ribbon group can adhere tightly to the lower surface of the solar cells and preventing the first ribbon group from deviating from the solar cells during the conveying process of the conveying mechanism 6.

[0172] like Figure 1 , Figure 4 and Figure 5 As shown, optionally, the single-cell bonding device for solar cells in this embodiment further includes a third conveying mechanism 9 and a press conveyor 10. The press conveyor 10 is configured to reciprocate between a press loading station and a press recycling station. The second conveying mechanism 5 is further configured to pick up a press from the press conveyor 10 located at the press loading station and press the press onto the second welding strip group located at the loading station to press the second welding strip group onto the bonded solar cell. In this way, it can be ensured that the second welding strip group can be pressed firmly onto the upper surface of the solar cell, preventing the second welding strip group from deviating from the solar cell when conveyed by the conveying mechanism 6.

[0173] In addition, a press unloading station is set up on the moving path of the conveying mechanism 6, located after the fixed connection station. The third transport mechanism 9 is set up at the press unloading station and is configured to pick up the press from the conveying mechanism 6 and place the press on the press conveying table 10 located at the press recycling station.

[0174] That is, after the welding strip is fixed, the third conveying mechanism 9 automatically removes the press from the conveying mechanism 6 and puts the press back on the press conveying table 10, so that the press conveying table 10 can transport the press back to the press loading station, thereby realizing the recycling of the press.

[0175] Optionally, the clamping device includes a frame and several rows of clamping pins mounted on the frame, each row of pins being used to clamp a welding strip. The third conveying mechanism 9 picks up the clamping device by adsorbing the frame.

[0176] Optionally, the single-cell bonding device in this embodiment further includes a fourth conveying mechanism 110, an inspection mechanism 120, a cell receiving mechanism 130, and an NG cell recycling mechanism 140, wherein: a cell unloading station is also provided on the conveying path of the conveying mechanism 6 after the press unloading station. The fourth conveying mechanism 110 is located at the cell unloading station and is configured to take the bonded and glued cells that have been bonded to the cell unloading station from the conveying mechanism 6 and transfer them to the inspection mechanism 120. The inspection mechanism 120 is configured to perform quality inspection on the bonded and glued cells that have been bonded to the cell unloading station. The fourth conveying mechanism 110 is also configured to transport the qualified bonded and glued cells to the cell receiving mechanism 130, and to transport the unqualified bonded and glued cells to the NG cell recycling mechanism 140.

[0177] By setting up a fourth handling mechanism 110 and an inspection mechanism 120, the inspection and collection of glued solar cells with completed ribbon bonding are realized, ensuring that all glued solar cells with completed ribbon bonding that are collected by the solar cell collection mechanism 130 are qualified glued solar cells. Unqualified glued solar cells with completed ribbon bonding, as confirmed by the inspection mechanism 120, are recycled by the NG cell recycling mechanism 140.

[0178] Because the cell collecting mechanism 130 is provided to collect the glued cells after the welding ribbon is fixed, the single cell fixing device of this application embodiment can be supplied to multiple battery string repair machines in the downstream process, and can work independently without being limited by the repair cycle of the repair machine, thereby improving the cell replacement efficiency.

[0179] Optionally, the inspection unit 120 includes an EL inspection unit and a visual inspection unit. The EL inspection unit is used to perform EL inspection on the coated solar cells after the solder ribbons have been fixed, while the visual inspection unit is used to perform visual inspection on the coated solar cells after the solder ribbons have been fixed. This configuration enables the inspection unit 120 to detect cold solder joints, internal defects, and visual defects.

[0180] Optionally, the EL inspection unit includes an EL power-on component and an infrared camera. The EL power-on component powers the solar cells via a first solder strip group and a second solder strip group. The infrared camera acquires infrared images of the coated solar cells in the powered-on state. By performing image analysis on the infrared images, the detection of poor solder joints and internal defects in the coated solar cells can be completed. The appearance inspection unit can be equipped with various visible light imaging cameras, which take pictures of the coated solar cells in the unpowered state to obtain appearance images of the solar cells. By performing image analysis on the appearance images of the coated solar cells, the appearance inspection of the coated solar cells can be completed. Optionally, the infrared camera and the visible light imaging camera send the acquired infrared images and appearance images of the coated solar cells to the PLC, respectively. The PLC executes the image recognition algorithm stored within it to perform poor solder joint detection, internal defect detection, and appearance inspection of the solar cells.

[0181] like Figure 1 , Figure 4 and Figure 5 As shown, optionally, the cell receiving mechanism 130 includes a discharge conveying unit 131, a detection unit 132, a third NG receiving unit 133, and a receiving unit 134.

[0182] The fourth conveying mechanism 110 transports the qualified, welded and bonded solar cells to the discharge conveyor 131, which then conveys them to the inspection unit 132. The inspection unit 132 inspects the extended portions (or extended weld strips) of the first and / or second weld strip groups of the bonded solar cells to confirm whether they are skewed. If skewed, the discharge conveyor 131 conveys the welded and bonded solar cell to the third NG receiving unit 133 for recycling. Otherwise, the discharge conveyor 131 conveys the welded and bonded solar cell to the receiving unit 134 for collection and reuse in the rework unit.

[0183] The discharge conveyor 131 can be a carrier platform driven by a translation component or a conveyor belt.

[0184] The inspection unit 132 includes, for example, a visible light imaging camera disposed above the discharge conveyor unit 131, which takes pictures of the coated solar cells after the solder ribbon has been fixed in place to obtain an appearance image of the coated solar cells after the solder ribbon has been fixed in place. Optionally, the visible light imaging camera sends the acquired appearance image to a PLC, which executes an image recognition algorithm stored therein to perform skew detection of the extended solder ribbon.

[0185] Optionally, the third NG receiving section 133 includes a gripper and an NG material box. The gripper is used to pick up unqualified glued solar cells with completed ribbon bonding from the discharge conveyor section 131 and place them into the NG material box.

[0186] Optionally, the structures of the first transport mechanism 2, the second transport mechanism 5, the third transport mechanism 9, the fourth transport mechanism 110, the first transport section 34, the second transport section 35, the third transport section, and the transfer section 11 mentioned above are similar, all including a suction cup and a driving component for driving the suction cup to move. The driving component can be a robotic arm, a robotic hand, or a driver with translation and lifting functions formed by connecting 2-3 linear modules. The suction cup is used to adsorb the initial battery cell or the coated battery cell.

[0187] The foregoing has provided a sufficiently detailed and specific description of this application. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. The scope of protection claimed in this application is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A device for single piece fixing of a battery sheet, characterized by, The single-cell bonding device for solar cells includes a solar cell supply mechanism, a first transport mechanism, a glue application mechanism, a second transport mechanism, a ribbon laying mechanism, a conveying mechanism, and a bonding mechanism, wherein: The first conveying mechanism is configured to pick up an initial battery cell from the battery cell supply mechanism and convey the picked-up initial battery cell to the adhesive application mechanism, which is configured to apply adhesive dots to both sides of the initial battery cell to obtain an adhesive-coated battery cell. The conveying mechanism has a feeding station and a fixing station on its conveying path; The ribbon laying mechanism is configured to lay a first ribbon group onto the conveying mechanism at the feeding station; the second handling mechanism is configured to pick up a piece of the coated battery cell from the coating mechanism and stack the picked-up coated battery cell onto the first ribbon group; the ribbon laying mechanism is also configured to stack a second ribbon group onto the coated battery cell; The conveying mechanism is configured to convey the stacked first welding strip group, the glued battery cell, and the second welding strip group to the fixing station; The fastening mechanism is located at the fastening station and is configured to fasten the first and second ribbon groups delivered to the fastening station to the glued solar cell at least via the adhesive dots.

2. The battery sheet single sheet fixing device according to claim 1, wherein The adhesive application mechanism includes an adhesive bearing section, an adhesive application section, a first flipping section, a first conveying section, a second conveying section, and a first detection section, wherein: The first conveying mechanism is configured to convey the picked-up initial battery cell to the adhesive application carrier, wherein the movement path of the adhesive application carrier is provided with an adhesive application station and a flipping station; The adhesive application unit is disposed at the adhesive application station and is configured to apply adhesive dots to the first surface of the initial battery cell that has been moved to the adhesive application station and the second surface of the initial battery cell that has been flipped over. The first flipping part is disposed at the flipping station and is configured to pick up the initial battery cell that has completed the first surface coating from the coating support part that has moved to the flipping station, and to flip the picked-up initial battery cell. The first transport unit is configured to pick up the initial battery cell that has been flipped from the first flipping unit and place the picked-up initial battery cell onto the adhesive bearing unit; The second transport unit is configured to pick up the coated battery cell from the coating carrier and transport the coated battery cell to the first detection unit; The first detection unit is configured to detect and locate defects in the coated solar cell; The second transport mechanism is configured to pick up qualified coated battery cells from the first inspection unit and stack the coated battery cells onto the first welding strip group on the transport mechanism according to the position information of the coated battery cells.

3. The device according to claim 2, wherein the device is characterized by: The adhesive application support includes a first translation component and a first support platform, wherein the first support platform is connected to the movable part of the first translation component and is used to support the initial battery cell; The first translation component is used to drive the first support platform to reciprocate in the horizontal direction, and the glue application station and the flipping station are located on the translation path of the first support platform; A plurality of first clearance grooves are arranged side by side at intervals on the first support platform. The first clearance grooves are used to avoid adhesive dots on the initial battery cell after it has been flipped over. Adsorption holes for adsorbing the initial battery cell are provided between adjacent first clearance grooves.

4. The device for adhering a battery piece according to claim 2, wherein The first detection unit includes a first detection stage and a first camera, wherein: The second transport unit transports the coated solar cell to the first testing platform; The first testing platform has several second clearance grooves arranged side by side at intervals on its bearing surface. The second clearance grooves are used to avoid the adhesive dots on the coated battery cell. The first camera is located above the first inspection table and is used to take pictures of the coated solar cells located on the first inspection table in order to detect and locate defects in the coated solar cells.

5. The device for adhering a battery piece according to claim 2, wherein The coating mechanism further includes a first NG receiving section, and the second conveying mechanism or the second conveying section is configured to pick up the unqualified coated solar cells from the first detection section and convey the picked-up unqualified coated solar cells to the first NG receiving section.

6. The device for adhering a battery piece according to claim 2, wherein The first flipping part includes a flipping drive assembly and an adsorption plate, wherein the adsorption plate is connected to the drive end of the flipping drive assembly, at least one surface of the adsorption plate is an adsorption surface, and a plurality of third clearance grooves are arranged side by side at intervals on the adsorption surface, the third clearance grooves being used to avoid adhesive dots applied to the first surface of the initial battery cell. When the flipping drive assembly flips the adsorption plate so that the adsorption surface faces down, the adsorption plate picks up the initial battery cell located on the adhesive support portion at the flipping station; when the flipping drive assembly flips the adsorption plate so that the adsorption surface faces up, the initial battery cell is flipped. The first transport unit is configured to pick up the initial battery cell that has been flipped over from the adsorption plate.

7. The device for adhering a battery piece according to claim 6, wherein The single-cell fixing device for the battery cell also includes a straightening component disposed on the side of the adsorption plate. The straightening component is configured to correct the position of the initial battery cell that has been flipped over on the adsorption plate. The first transport unit is configured to pick up the initial battery cell that has been flipped and straightened from the adsorption plate.

8. The solar cell single piece fixing device according to claim 1, wherein The cell supply mechanism includes a transfer section, a second inspection section, and a second NG receiving section, wherein: The second detection unit includes a second detection table and a second camera; The transfer unit is configured to pick up an initial battery cell from the hopper and transfer the picked-up initial battery cell to the second detection stage; The second camera is located above the second inspection station and is used to take pictures of the initial battery cell located on the second inspection station in order to perform defect detection and location of the initial battery cell; The first conveying mechanism is configured to pick up the qualified initial battery cell from the second inspection table and convey the initial battery cell to the coating mechanism according to the position information of the initial battery cell; The first conveying mechanism is also configured to pick up the initial battery cells that fail the inspection from the second inspection table and convey the picked-up initial battery cells to the second NG receiving section.

9. The solar cell sheet single sheet fixing device according to claim 1, wherein The adhesive application mechanism includes a first adhesive application bearing section, a first adhesive application section, a second flipping section, a second adhesive application bearing section, a second adhesive application section, a third conveying section, and a third detection section, wherein: The first conveying mechanism is configured to convey the picked-up initial battery cell to the first adhesive application support, wherein the first adhesive application support has a first adhesive application station and a flipping station on its movement path; The first adhesive application section is disposed at the first adhesive application station and is configured to apply adhesive dots to the first surface of the initial battery cell that has been moved to the first adhesive application station; The second flipping part is disposed at the flipping station and is configured to pick up the initial battery cell that has completed the first surface coating from the first coating support part that has moved to the flipping station, and to place the picked-up initial battery cell on the second coating support part after flipping it over. A second adhesive application station is provided on the moving path of the second adhesive application carrier. The second adhesive application unit is located at the second adhesive application station and is configured to apply adhesive dots to the second surface of the initial battery cell that has moved to the second adhesive application station. The third transport unit is configured to pick up the coated battery cell from the second coating carrier and transport the coated battery cell to the third detection unit; The third detection unit is configured to detect and locate defects in the coated solar cell. The second transport mechanism is configured to pick up qualified coated solar cells from the third inspection unit and stack the coated solar cells onto the first solder strip group according to the position information of the coated solar cells.

10. The device according to any one of claims 1 to 9, wherein the device is a device for fixing a battery piece. The welding strip laying mechanism includes a welding strip feeding section, a welding strip pressing section, a welding strip cutting section, and a welding strip traction section, wherein: The welding strip feeding section is configured to feed out multiple welding strips, each of which passes sequentially through the welding strip pressing section and the welding strip cutting section and is then clamped by the welding strip traction section. The welding strip traction section is configured to move away from the welding strip cutting section to pull out the welding strip; The welding strip clamping part is configured to clamp each of the welding strips, and the welding strip cutting part is configured to cut each of the clamped welding strips to obtain the first welding strip group or the second welding strip group; The welding strip traction unit is also configured to lay the first welding strip group onto the conveying mechanism, or to lay the second welding strip group onto the coated solar cell.

11. The device according to claim 10, wherein the device is characterized by: The welding strip laying mechanism includes a flux coating section. Multiple welding strips released from the welding strip feeding section pass sequentially through the flux coating section, the welding strip pressing section, and the welding strip cutting section, and are then clamped by the welding strip traction section. The flux coating section is configured to coat each of the welding strips with flux.

12. The solar cell sheet single sheet fixing device according to claim 10, wherein The welding strip laying mechanism also includes a welding strip guide located on the traction path of the welding strip; When the welding strip traction part pulls the welding strip to a predetermined length, the welding strip guide part is configured to move between the welding strip cutting part and the welding strip traction part and perform traction guidance on each of the welding strips; When the tail end of the first or second welding strip group is pulled into the welding strip guide, the welding strip guide is configured to clamp the tail end of the first or second welding strip group. The welding strip guide is also configured to move synchronously with the welding strip traction unit to cooperate with the welding strip traction unit to lay the first welding strip group onto the conveying mechanism, or to lay the second welding strip group onto the coated battery cell.

13. The device of claim 12, wherein the device is configured to be attached to a solar cell. The welding strip guide includes a first driving part, a base, a first movable plate, a second movable plate, and a second driving part, wherein: The base is mounted on the first driving part, which is used to drive the base to rise and fall and to translate along a first horizontal direction, which is parallel to the pulling direction of the welding strip. The first movable plate is slidably mounted on the base. A plurality of first clamps are arranged on the first movable plate along the second horizontal direction. The second movable plate is slidably mounted on the base. A plurality of second clamps are arranged on the second movable plate along the second horizontal direction. The second clamps are arranged in pairs with the first clamps. The pairs of first clamps and second clamps constitute a clamp assembly. Each clamp assembly is used to guide, limit, and clamp a welding strip. The second horizontal direction is perpendicular to the first horizontal direction. The second driving unit is disposed on the base and is configured to drive the first moving plate and the second moving plate to move along the second horizontal direction, so as to cause each of the first clamps and the paired second clamps to partially close or close when they are close to each other. When the first clamp and the paired second clamps are partially closed, a gap is formed between the first clamp and the paired second clamps for guiding the movement of the welding strip. When the first clamp and the paired second clamps are closed, the first clamp and the paired second clamps clamp the welding strip.

14. The cell sheet single sheet fixing device according to any one of claims 1 to 9, wherein The conveying mechanism includes a second translation component and a second support platform. The second support platform is connected to a movable part of the second translation component and is used to support and adsorb the coated battery cells. The second translation component drives the second support platform to reciprocate horizontally. The loading station and the fixing station are both located on the translation path of the second support platform. Alternatively, The conveying mechanism includes a conveyor belt, and the loading station and the fixing station are located on the conveying path of the conveyor belt. The conveyor belt is used to carry and adsorb the coated battery cells.

15. The device of claim 14, wherein the device is configured to be attached to a solar cell. The single-cell fixing device for the battery cells also includes an air blowing assembly, which is movably disposed above the second support platform or the conveyor belt and configured to blow air toward the support surface of the second support platform or the conveyor belt to remove foreign objects.

16. The solar cell sheet single sheet fixing device according to claim 14, wherein The adhesive dots are UV-cured adhesive dots, and the second support platform or the conveyor belt is light-transmitting; The fixing mechanism includes a first UV lamp box and a second UV lamp box located at the fixing station and arranged vertically opposite each other, wherein: The first UV light box is used to emit UV light to cure the UV light-curing adhesive dots on the upper surface of the coated solar cell, so as to bond the second solder ribbon assembly to the upper surface of the coated solar cell; the second UV light box is used to emit UV light to pass through the second support platform or the conveyor belt to cure the UV light-curing adhesive dots on the lower surface of the coated solar cell, so as to bond the first solder ribbon assembly to the lower surface of the coated solar cell.

17. The solar cell sheet single sheet fixing device according to claim 14, wherein The adhesive dots are thermosetting adhesive dots; The bonding mechanism includes a first heating lamp box configured to heat at a first temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to initially cure, thereby bonding the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated solar cell, respectively. The first heating lamp box is further configured to continue heating at a second temperature, causing the thermosetting adhesive dots on the upper and lower surfaces of the coated solar cell to completely cure, and melting the solder on the surfaces of the first solder ribbon group and the second solder ribbon group, thereby welding the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated solar cell; or... The bonding mechanism includes a second heating lamp box and a third heating lamp box arranged sequentially along the conveying direction of the conveying mechanism. The second heating lamp box is configured to heat at a first temperature, so that the thermosetting adhesive dots on the upper and lower surfaces of the coated battery cell are initially cured, so as to bond the first solder ribbon group and the second solder ribbon group to the lower and upper surfaces of the coated battery cell respectively. The third heating lamp box is configured to heat at a second temperature, so that the thermosetting adhesive dots on the upper and lower surfaces of the coated battery cell are completely cured, and the solder on the surfaces of the first and second solder ribbon groups is melted, so as to weld the first and second solder ribbon groups to the lower and upper surfaces of the battery cell. The second temperature is higher than the first temperature.

18. The cell sheet single sheet fixing device according to any one of claims 1 to 9, wherein The single-cell fixing device for the battery cells also includes a third transport mechanism and a press conveyor table; The press conveyor is configured to reciprocate between the press loading station and the press recycling station; The conveying mechanism is provided with an adsorption structure on its bearing surface, which is used to adsorb the glued battery cells stacked on the first welding strip group. The second conveying mechanism is also configured to pick up a press from the press conveyor at the press loading station and press the press onto the second strip assembly at the loading station to press the second strip assembly onto the coated solar cell; Along the moving path of the conveying mechanism, a press unloading station is also provided downstream of the fixed connection station. The third transport mechanism is located at the press unloading station and is configured to pick up the press from the conveying mechanism and place the press on the press conveying platform located at the press recycling station.

19. The cell sheet fixation device of claim 18, wherein the at least one protrusion is configured to engage the at least one groove of the cell sheet. The single-cell fixing device for solar cells also includes a fourth conveying mechanism, a detection mechanism, a solar cell receiving mechanism, and an NG cell recycling mechanism, wherein: A battery cell unloading station is also provided on the conveying path of the conveying mechanism after the press unloading station; The fourth conveying mechanism is located at the cell unloading station and is configured to take the glued cell with the welded strip fixed to the cell unloading station from the conveying mechanism and transfer it to the inspection mechanism. The testing mechanism is configured to perform quality testing on the glued solar cells after the solder strips have been bonded. The fourth conveying mechanism is also configured to convey qualified, welded and bonded solar cells to the solar cell receiving mechanism, and to convey unqualified, welded and bonded solar cells to the NG cell recycling mechanism.

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