Battery piece feeding mechanism and battery string repairing machine

Abstract

The invention provides a battery piece feeding mechanism and a battery string repairing machine, the battery piece feeding mechanism comprises a rack, and a material supply mechanism, a transfer mechanism, a holding mechanism, a shearing mechanism and a temporary storage table which are mounted on the rack, and the material supply mechanism is configured to supply initial battery pieces; the transfer mechanism is configured to transfer the initial battery pieces picked up from the feeding mechanism to the holding mechanism; the fixing mechanism is configured to fix the initial battery piece and at least one of the end part of the first welding strip group and the end part of the second welding strip group on the initial battery piece; the shearing mechanism is configured to shear the fixed end parts of the first welding strip group and the second welding strip group so as to obtain a replacement battery piece; the transfer mechanism is further configured to transfer the replacement battery pieces on the fixing and holding mechanism to the temporary storage table and feed the replacement battery pieces on the temporary storage table to a subsequent repair station. According to the invention, automatic preparation of the replacement battery piece for repair is realized, and the repair efficiency of the battery string is further improved.

Description

Technical Field

[0001] This application relates to the field of battery string repair, and more specifically to a battery chip feeding mechanism and a battery string repair machine. Background Art

[0002] When there are defective battery chips in a battery string, the battery string can be repaired. Taking Figure 15 the battery string as an example, the connecting solder tape between the defective battery chip 300 and the adjacent adjacent battery chip 400 is cut. The position where the solder tape is cut is as shown by the "×" in Figure 15 . Then, the defective battery chip is removed from the battery string, and a replacement battery chip 500 with a solder tape group is placed at the position vacated after the defective battery chip 300 is removed, and the solder tape group on the replacement battery chip 500 is lap welded to the solder tape group on the adjacent battery chip 400.

[0003] According to the position (head, middle, or tail) of the defective battery chip to be replaced in the battery string, the corresponding replacement battery chip is classified into a head replacement battery chip, a middle replacement battery chip, and a tail replacement battery chip. The lengths by which the solder tape groups on the three types of replacement battery chips extend beyond the battery chip may not be the same. For example, Figure 16 for the tail replacement battery chip shown in (a), the solder tape groups on both its upper and lower surfaces extend beyond the battery chip by a certain length. Figure 16 for the middle replacement battery chip shown in (b), the solder tape group on its upper surface does not need to extend beyond the battery chip, and the solder tape group on its lower surface needs to extend beyond the battery chip by a certain length.

[0004] For the pre-prepared initial battery chip, as shown in Figure 17 , the solder tape groups on both its upper and lower surfaces extend beyond the battery chip with a unified length. Therefore, when replacing and repairing a battery string, it is necessary to determine the type of replacement battery chip required according to the position of the defective battery chip in the battery string. After cutting the solder tape group on the initial battery chip to obtain the required type of replacement battery chip, the replacement battery chip is then fed to the repair position. Currently, the replacement battery chips used on battery string repair machines are all obtained by manually cutting the solder tape on the initial battery chip offline and then manually feeding them to the repair machine for use. The degree of automation is low, resulting in low efficiency of battery string repair. Summary of the Invention

[0005] In order to solve the technical problem of low efficiency existing in the existing method of feeding replacement battery chips, this application provides a battery chip feeding mechanism, and its detailed technical solution is as follows:

[0006] A battery chip feeding mechanism includes a frame and a feeding mechanism, a transfer mechanism, a holding mechanism, a shearing mechanism, and a buffer table installed on the frame, where:

[0007] The feeding mechanism is configured to supply initial battery wafers. A first solder tape group extending outward from the first side of the initial battery wafer is connected to the upper surface of the initial battery wafer, and a second solder tape group extending outward from the second side of the initial battery wafer is connected to the lower surface of the initial battery wafer;

[0008] The transfer mechanism is configured to pick up the initial battery wafer from the feeding mechanism and transfer the picked-up initial battery wafer to the holding mechanism;

[0009] The holding mechanism is configured to fix the initial battery wafer transferred by the transfer mechanism and at least one of the end portions of the first solder tape group and the end portions of the second solder tape group on the initial battery wafer;

[0010] The shearing mechanism is configured to shear at least one of the end portions of the fixed first solder tape group and the second solder tape group to obtain a replacement battery wafer, and the replacement battery wafer includes at least one of a head replacement battery wafer, a middle replacement battery wafer, and a tail replacement battery wafer;

[0011] The transfer mechanism is further configured to transfer the replacement battery wafer on the holding mechanism to the buffer table and load the replacement battery wafer on the buffer table into the subsequent repair station.

[0012] The battery wafer loading mechanism provided in this application realizes automatic shearing of at least one of the end portions of the first solder tape group and the second solder tape group on the initial battery wafer through the cooperation of the feeding mechanism, the transfer mechanism, the holding mechanism, the shearing mechanism, and the buffer table, so as to automatically prepare a replacement battery wafer for repair. It can also automatically load the replacement battery wafer into the subsequent repair station, thereby improving the loading efficiency of the replacement battery wafer and further improving the repair efficiency of the battery string.

[0013] In some embodiments, the feeding mechanism includes a basket conveying mechanism, a lifting mechanism, a docking conveying mechanism, and a loading conveying mechanism, where: the basket conveying mechanism is arranged below the loading conveying mechanism; the lifting mechanism is arranged on the side of the basket conveying mechanism and the loading conveying mechanism, and the docking conveying mechanism is connected to the moving part of the lifting mechanism; the lifting mechanism is configured to drive the docking conveying mechanism to descend to the basket-changing station so that the docking conveying mechanism is docked with the basket conveying mechanism; the basket conveying mechanism is configured to convey the basket filled with initial battery wafers onto the docking conveying mechanism or receive the emptied basket output by the docking conveying mechanism; the lifting mechanism is further configured to drive the docking conveying mechanism to ascend to the wafer-picking station so that the initial battery wafer at the bottom of the basket is higher than the loading conveying mechanism; the loading conveying mechanism is configured to extend into the basket, and the lifting mechanism is further configured to drive the docking conveying mechanism to descend so that the initial battery wafers in the basket sequentially fall onto the loading conveying mechanism. The loading conveying mechanism is further configured to sequentially take out the initial battery wafers in the basket and convey them to the feeding station away from the lifting mechanism; the transfer mechanism picks up the initial battery wafer from the feeding station.

[0014] Through the cooperation of the basket conveying mechanism, the lifting mechanism, the docking conveying mechanism and the loading conveying mechanism, the feeding mechanism realizes the automatic removal of the initial battery cells in the basket, and automatically transports the removed initial battery cells to the feeding station, thereby realizing the automatic feeding of the initial battery cells. In particular, the basket conveying mechanism and the loading conveying mechanism are arranged up and down, and the two are docked by the lifting mechanism and the docking conveying mechanism, thereby reducing the space occupied by the feeding mechanism of the present application.

[0015] In some embodiments, a cell aligning mechanism is also provided on the conveying path of the loading conveying mechanism. The cell aligning mechanism is located between the cell picking station and the feeding station and is configured to perform position correction on the initial cell conveyed to the cell aligning mechanism.

[0016] By setting up a cell straightening mechanism on the conveying path of the loading conveying mechanism, the position of the initial cell is corrected, thereby avoiding the initial cell conveyed to the feeding station from being skewed, and ultimately ensuring that the transfer mechanism can smoothly pick up the initial cell from the feeding station.

[0017] In some embodiments, the holding mechanism includes a carrier platform, a first side clamping mechanism and a second side clamping mechanism, wherein: the carrier platform is used to carry and adsorb the initial battery cell; the first side clamping mechanism is arranged on the first side of the carrier platform, and the first side clamping mechanism is used to clamp the end of the first weld ribbon group on the initial battery cell, and pull the first weld ribbon group upward so that a shear angle is formed between the first weld ribbon group and the initial battery cell; the second side clamping mechanism is arranged on the second side of the carrier platform, and the second side clamping mechanism is used to clamp the end of the second weld ribbon group on the initial battery cell, and pull the second weld ribbon group downward so that a shear angle is formed between the second weld ribbon group and the initial battery cell.

[0018] The holding mechanism realizes the adsorption and fixation of the initial battery cell, and realizes the clamping and pulling of the ends of the first welding ribbon group and the second welding ribbon group on the initial battery cell, so that a shearing angle is formed between the first welding ribbon group, the second welding ribbon group and the initial battery cell, which facilitates the shearing mechanism to implement the shearing of the first welding ribbon group and the second welding ribbon group.

[0019] In some embodiments, the first side clamping mechanism and the second side clamping mechanism have the same structure, and the first side clamping mechanism includes a lifting drive unit, a transverse drive unit, a first mounting bracket and a clamping assembly, wherein: the first mounting bracket is transmission-connected to the transverse drive unit and the lifting drive unit, and the clamping assembly is arranged on the first mounting bracket; the transverse drive unit is used to drive the clamping assembly to move laterally to approach or move away from the first welding ribbon group, the clamping assembly is used to clamp or loosen the end of the first welding ribbon group, and the lifting drive unit is used to drive the clamping assembly to lift and lower.

[0020] The clamping assembly is driven to translate by the transverse translation driving part to ensure that the clamping assembly can align with the end of the first solder tape group to clamp the end of the first solder tape group; the clamping assembly is driven to lift by the lifting driving part to ensure that the clamping assembly can pull the first solder tape group.

[0021] In some embodiments, the holding mechanism further includes a rotation driving mechanism. The carrying platform is installed at the driving end of the rotation driving mechanism, and the rotation driving mechanism is used to drive the carrying platform to rotate in the horizontal plane to regularize the initial solar cell.

[0022] By providing the rotation driving mechanism, the position of the initial solar cell located on the carrying platform is corrected before shearing, ensuring the shearing accuracy of the solder tape.

[0023] In some embodiments, the transfer mechanism includes a first transfer mechanism and a second transfer mechanism. The first transfer mechanism includes a first driving module, a second mounting bracket and a first picking part, wherein: the second mounting bracket is in transmission connection with the first driving module, and the first picking part and the shearing mechanism are both arranged on the second mounting bracket; the first driving module is used to drive the first picking part to translate and lift, so that the first picking part picks up the initial solar cell from the feeding mechanism and transfers the picked initial solar cell to the holding mechanism; the first driving module is also used to drive the shearing mechanism to translate and lift, so that the shearing mechanism moves to the fixed first solder tape group and the second solder tape group; the second transfer mechanism is configured to transfer the replacement solar cell on the holding mechanism to the buffer table and load the replacement solar cell on the buffer table to the subsequent repair station.

[0024] By setting the transfer mechanism to include a first transfer mechanism and a second transfer mechanism, while the second transfer mechanism picks up and transfers the replacement solar cell on the holding mechanism, the first transfer mechanism picks up the next initial solar cell from the feeding mechanism and transfers the next initial solar cell to the holding mechanism, thereby improving the transfer efficiency and ensuring the processing rhythm of other components. In addition, by integrally installing the shearing mechanism on the mounting bracket of the first transfer mechanism, the structural complexity and equipment cost of the present application are reduced.

[0025] In some embodiments, the second transfer mechanism includes a second driving module, a second picking part, a third driving module and a third picking part, wherein: the second picking part is installed at the driving end of the second driving module, and the second driving module is used to drive the second picking part to translate and lift, so that the second picking part transfers the replacement solar cell on the holding mechanism to the buffer table; the third picking part is installed at the driving end of the third driving module, and the third driving module is used to drive the third picking part to translate and lift, so that the third picking part loads the replacement solar cell on the buffer table to the subsequent repair station.

[0026] By setting the second transfer mechanism, it can be achieved that while the third pick-up unit feeds a replacement cell on the buffer table to the subsequent repair station under the drive of the third drive module, the second pick-up unit transports another replacement cell on the holding mechanism to the buffer table under the drive of the second drive module, thereby further improving the transfer efficiency and ensuring the processing rhythm of other components.

[0027] In some embodiments, the transfer mechanism includes a fourth drive module, a fourth pick-up unit, a fifth drive module, and a fifth pick-up unit, where: the fourth pick-up unit is installed at the drive end of the fourth drive module, and the fourth drive module is used to drive the fourth pick-up unit to translate and lift, so that the fourth pick-up unit moves between the feeding mechanism, the holding mechanism, and the buffer table to implement the transfer of cells; the fifth pick-up unit is installed at the drive end of the fifth drive module, and the fifth drive module is used to drive the fifth pick-up unit to translate and lift, so that the fifth pick-up unit feeds the replacement cell on the buffer table to the subsequent repair station.

[0028] Another implementation method of the transfer mechanism is provided, which can achieve that while the fifth pick-up unit feeds the replacement cell on the buffer table to the subsequent repair station under the drive of the fifth drive module, the fourth pick-up unit can move between the feeding mechanism, the holding mechanism, and the buffer table under the drive of the fourth drive module to implement the transfer of cells, thereby improving the transfer efficiency of the transfer mechanism and ensuring the processing rhythm of other components.

[0029] In some embodiments, the buffer table includes a first buffer table, a second buffer table, and a third buffer table, where: the first buffer table is used to buffer the head replacement cells, and the head replacement cells are used to replace the defective cells at the head of the battery string to be repaired; the second buffer table is used to buffer the tail replacement cells, and the tail replacement cells are used to replace the defective cells at the tail of the battery string to be repaired; the third buffer table is used to buffer the middle replacement cells, and the middle replacement cells are used to replace the defective cells between the head cell and the tail cell of the battery string to be repaired.

[0030] Partitioned buffering of the head replacement cells, tail replacement cells, and middle replacement cells is achieved.

[0031] In some embodiments, sensors are correspondingly arranged on the first buffer table, the second buffer table, and the third buffer table; when the replacement cells on the first buffer table, the second buffer table, and the third buffer table are emptied, the corresponding sensors are triggered to generate induction signals; the holding mechanism and the shearing mechanism correspondingly fix and shear at least one of the first solder tape group and the second solder tape group based on the received induction signals to obtain the corresponding replacement cells.

[0032] Ensure that there are replacement solar cells of corresponding types on the first buffer table, the second buffer table, and the third buffer table, so as to ensure that the subsequent repair mechanism can obtain the required types of replacement solar cells in a timely manner.

[0033] In some embodiments, the solar cell loading mechanism further includes a first detection mechanism located between the feeding mechanism and the holding mechanism; the transfer mechanism is configured to pick up an initial solar cell from the feeding mechanism and transfer the picked-up initial solar cell to the first detection mechanism; the first detection mechanism is at least configured to perform position detection and solder ribbon length detection on the initial solar cell to obtain the position information of the initial solar cell and the length information of the first solder ribbon group and the second solder ribbon group; the transfer mechanism is further configured to transfer the initial solar cell from the first detection mechanism to the holding mechanism, and the holding mechanism is further configured to regularize the initial solar cell based on the position information of the initial solar cell before shearing the solder ribbon, and the shearing mechanism performs shearing on at least one of the first solder ribbon group and the second solder ribbon group based on the length information of the first solder ribbon group and the second solder ribbon group.

[0034] By setting the first detection mechanism, the position detection and solder ribbon length detection of the initial solar cell are realized; by the holding mechanism regularizing the initial solar cell based on the position information of the solar cell, the initial solar cell can be aligned before shearing the solder ribbon, preparing for the shearing of the solder ribbon; by the shearing mechanism performing shearing on at least one of the first solder ribbon group and the second solder ribbon group based on the length information of the first solder ribbon group and the second solder ribbon group, precise shearing of at least one of the first solder ribbon group and the second solder ribbon group can be achieved, and finally the replacement solar cell required for repair can be obtained.

[0035] In some embodiments, the first detection mechanism is further used to perform EL detection on the initial solar cell and detect appearance defects on the lower surface of the initial solar cell.

[0036] The detection of internal defects and appearance defects of the initial solar cell is realized, avoiding defective initial solar cells from flowing into subsequent processes.

[0037] In some embodiments, the first detection mechanism includes an EL power-on fixture, an EL camera, and a first camera; the transfer mechanism transfers the picked-up initial solar cell above the EL power-on fixture, and the EL power-on fixture is used to clamp the first solder ribbon group and the second solder ribbon group on the initial solar cell and power on the initial solar cell; both the EL camera and the first camera are arranged below the EL power-on fixture, wherein the EL camera is used to obtain an infrared image of the initial solar cell when the initial solar cell is in a powered-on state to perform EL detection on the initial solar cell; the first camera is used to obtain an image of the initial solar cell when the initial solar cell is in an unpowered state to perform appearance detection on the lower surface of the initial solar cell, and perform position detection and solder ribbon length detection on the initial solar cell.

[0038] Through the cooperation of the EL power-on fixture and the EL camera, the EL detection of the initial cell is realized; by using the first camera to take pictures of the initial cell and performing image analysis on the pictures, the appearance detection of the lower surface of the initial cell, as well as the position detection and the solder strip length detection, are realized.

[0039] In some embodiments, the cell loading mechanism further includes a second detection mechanism, which is used to perform appearance detection on the upper surface of the replacement cell, and perform length detection on the first solder strip group and the second solder strip group on the replacement cell.

[0040] By setting the second detection mechanism, the appearance of the upper surface of the replacement cell and the lengths of the first solder strip group and the second solder strip group are automatically detected, and finally it is ensured that the replacement cell loaded into the subsequent repair station is a qualified replacement cell that meets the repair requirements.

[0041] In some embodiments, the second detection mechanism includes a second camera, which is fixedly arranged on the frame above the holding mechanism and is used to take pictures of the replacement cell on the holding mechanism; alternatively, the second detection mechanism includes a second camera, which is fixedly installed on the frame, the second camera is arranged between the buffer table and the subsequent repair station, the buffer table is configured to be movable under the second camera, and the second camera takes pictures of the replacement cell on the buffer table.

[0042] By fixedly arranging the second detection mechanism on the frame above the holding mechanism, after the holding mechanism and the shearing mechanism cooperate to complete the preparation of the replacement cell, the second detection mechanism immediately performs the appearance and solder strip length detection on the replacement cell; and by arranging the second detection mechanism between the buffer table and the subsequent repair station and setting the buffer table to be movable under the second detection mechanism, on the one hand, the second detection mechanism realizes the appearance and solder strip length detection of the replacement cell transferred to the buffer table, and on the other hand, it can avoid interference between the second detection mechanism and other components.

[0043] This application also provides a cell string repair machine, which includes the cell loading mechanism described in any one of the above.

[0044] By setting the cell loading mechanism, the cell string repair machine realizes the automatic preparation and automatic loading of the replacement cells required for repair, thereby further improving the repair efficiency of the cell string.

[0045] In some embodiments, the battery string repair machine further includes a repair platform, a rectifying platform, a cell placing device, a solder strip shearing device, a solder strip clamping device, and a welding device, where: the cell loading mechanism is used to load replacement cells onto the rectifying platform; the rectifying platform is used to rectify the replacement cells; the repair platform is used to carry the battery string to be repaired, and stagger the defective cell from the first adjacent cell and / or stagger the defective cell from the second adjacent cell in the vertical direction; the solder strip shearing device is used to cut the solder strip group between the defective cell and the first adjacent cell, and / or cut the solder strip group between the defective cell and the second adjacent cell; the cell placing device is used to pick up the replacement cells from the rectifying platform and place the replacement cells at the defective position in the battery string on the repair platform, and the defective position is the position vacated after the defective cell is removed; the solder strip clamping device is used to clamp the first solder strip group on the replacement cell at the defective position together with the solder strip group to be lapped on the first adjacent cell, and / or clamp the second solder strip group on the replacement cell at the defective position together with the solder strip group to be lapped on the second adjacent cell; the welding device is used to weld the first solder strip group on the replacement cell to be clamped together with the solder strip group to be lapped on the first adjacent cell, and / or weld the second solder strip group on the replacement cell to be clamped together with the solder strip group to be lapped on the second adjacent cell.

[0046] Through the cooperation of the cell loading mechanism, the repair platform, the rectifying platform, the cell placing device, the solder strip shearing device, the solder strip clamping device and the welding device, the battery string repair machine realizes the automatic repair of the battery string. Description of the Drawings

[0047] Figure 1 is a schematic structural diagram of the cell loading mechanism in an embodiment of the present application;

[0048] Figure 2 is a partial structural schematic diagram of the cell loading mechanism in an embodiment of the present application;

[0049] Figure 3 is a schematic structural diagram of the first transfer mechanism in an embodiment of the present application from one perspective;

[0050] Figure 4 is a schematic structural diagram of the first transfer mechanism in an embodiment of the present application from another perspective;

[0051] Figure 5 is a schematic structural diagram of the shearing mechanism in an embodiment of the present application;

[0052] Figure 6 is a schematic structural diagram of the hooking knife in an embodiment of the present application;

[0053] Figure 7 Schematic diagram of the structure of the second transfer mechanism and the buffer table in the embodiment of the present application;

[0054] Figure 8 Schematic diagram of the structure of the feeding mechanism in the embodiment of the present application;

[0055] Figure 9 Schematic diagram of the structure of the first detection mechanism in the embodiment of the present application;

[0056] Figure 10 Schematic diagram of the structure of the holding mechanism in the embodiment of the present application;

[0057] Figure 11 Schematic diagram of the structure of the first side clamping mechanism in the embodiment of the present application;

[0058] Figure 12 Schematic diagram of the structure of the carrier table and the rotation driving mechanism in the embodiment of the present application;

[0059] Figure 13 Schematic diagram of the structure of some components of the battery sheet loading mechanism in another embodiment of the present application from one perspective;

[0060] Figure 14 Schematic diagram of the structure of some components of the battery sheet loading mechanism in another embodiment of the present application from another perspective;

[0061] Figure 15 Schematic diagram of the battery string repair method;

[0062] Figure 16 Schematic diagram of the structures of two kinds of replacement battery sheets;

[0063] Figure 17 Schematic diagram of the structure of the initial battery sheet;

[0064] Figures 1 to 17 includes:

[0065] Feeding mechanism 1:

[0066] Basket conveying mechanism 11;

[0067] Lifting mechanism 12;

[0068] Docking conveying mechanism 13;

[0069] Loading conveying mechanism 14;

[0070] Battery sheet regularizing mechanism 15;

[0071] Crosswise movement mechanism 16;

[0072] Transfer mechanism 2:

[0073] The first transfer mechanism 21: the first driving module 211, the second mounting bracket 212, the first picking part 213;

[0074] The second transfer mechanism 22: the second driving module 221, the second picking part 222, the third driving module 223, the third picking part 224;

[0075] The fourth driving module 23, the fourth picking part 24, the fifth driving module 25; the fifth picking part 26; the holding mechanism 3:

[0076] The bearing table 31;

[0077] The first side clamping mechanism 32: the lifting driving part 321, the transverse movement driving part 322, the first mounting bracket 323, the clamping assembly 324;

[0078] The second side clamping mechanism 33;

[0079] The rotation driving mechanism 34: the motor 341, the driving wheel 342, the belt 343, the driven wheel 344; the shearing mechanism 4:

[0080] The tool rest 41, the fixed cutting tool 42, the movable cutting tool 43, the cutting tool driving part 44, the hook tool 421, the supporting inclined plane 422, the fixed cutting edge 423, the movable cutting edge 431;

[0081] The buffer table 5;

[0082] The first buffer table 51, the second buffer table 52, the third buffer table 53;

[0083] The first detection mechanism 6:

[0084] The EL power-on fixture 61;

[0085] The EL camera 62;

[0086] The first camera 63;

[0087] The first light source 64;

[0088] The second light source 65;

[0089] The second detection mechanism 7:

[0090] The second camera mounting bracket 71;

[0091] The third light source 72;

[0092] The fourth light source 73;

[0093] The fifth light source 74;

[0094] The machine frame 8;

[0095] Material basket 100, initial solar cell 200, defective solar cell 300, adjacent solar cell 400, replacement solar cell 500. Detailed implementation manners

[0096] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0097] Currently, for the replacement solar cells used on the solar cell string repair machine, after the initial solar cells are manually sheared with solder tapes offline, they are manually loaded onto the repair machine for use. The degree of automation is low, resulting in low efficiency of solar cell string repair.

[0098] To solve the technical problem of low efficiency existing in the current feeding method of replacement solar cells, the present application provides a solar cell feeding mechanism, which can automatically prepare replacement solar cells for repair and automatically load the replacement solar cells onto the subsequent repair station, thereby improving the feeding efficiency of the replacement solar cells and further improving the efficiency of solar cell string repair.

[0099] As Figures 1 to 2 shown, the solar cell feeding mechanism in the embodiment of the present application includes a frame 8, and a feeding mechanism 1, a transfer mechanism 2, a holding mechanism 3, a shearing mechanism 4, and a buffer table 5 installed on the frame 8, where:

[0100] The feeding mechanism 1 is configured to supply initial solar cells. A first solder tape group extending outward from the first side of the initial solar cell is connected to the upper surface of the initial solar cell, and a second solder tape group extending outward from the second side of the initial solar cell is connected to the lower surface of the initial solar cell.

[0101] The transfer mechanism 2 is configured to pick up the initial solar cells from the feeding mechanism 1 and transfer the picked-up initial solar cells to the holding mechanism 3.

[0102] The holding mechanism 3 is configured to fix the initial solar cells transferred by the transfer mechanism 2 and at least one of the ends of the first solder tape group and the ends of the second solder tape group on the initial solar cells.

[0103] The shearing mechanism 4 is configured to shear the ends of the fixed first solder tape group and the second solder tape group to obtain replacement solar cells, and the replacement solar cells include at least one of a head replacement solar cell, a middle replacement solar cell, and a tail replacement solar cell.

[0104] The transfer mechanism 2 is further configured to transfer the replacement solar cells on the holding mechanism 3 to the buffer table 5 and load the replacement solar cells on the buffer table 5 onto the subsequent repair station.

[0105] It can be seen that through the cooperation of the feeding mechanism 1, the transfer mechanism 2, the holding mechanism 3, the shearing mechanism 4 and the buffer table 5, the battery sheet loading mechanism in the embodiment of the present application realizes automatically shearing at least one of the ends of the first solder tape group and the ends of the second solder tape group on the initial battery sheet, so as to automatically prepare a replacement battery sheet for repair, and can also automatically load the replacement battery sheet to the subsequent repair station, thereby improving the loading efficiency of the replacement battery sheet and further improving the repair efficiency of the battery string.

[0106] Optionally, the initial battery sheet can be pre-prepared by welding, that is, the first solder tape group and the second solder tape group are respectively welded on the upper surface and the lower surface of the battery sheet; or, the initial battery sheet can also be pre-prepared by bonding, that is, the first solder tape group and the second solder tape group are respectively bonded on the upper surface and the lower surface of the battery sheet through glue dots or tapes. The connection method between the solder tape and the battery sheet in the initial battery sheet depends on the connection method between the solder tape and the battery sheet in the battery string to be repaired.

[0107] In order to ensure that according to the repair needs, the initial battery sheet can be sheared and prepared into a head replacement battery sheet, a middle replacement battery sheet or a tail replacement battery sheet, it is required that the lengths of the first solder tape group and the second solder tape group extending from the initial battery sheet are at least equal to the length of the longer solder tape group extending from any one of the head replacement battery sheet, the middle replacement battery sheet and the tail replacement battery sheet. During the preparation process, according to the specific type of the replacement battery sheet to be prepared, the shearing mechanism 4 selects to shear the first solder tape group or the second solder tape group, or shear both the first solder tape group and the second solder tape group. Correspondingly, before shearing, the holding mechanism 3 selects to fix the first solder tape group or the second solder tape group to be sheared, or fix both the first solder tape group and the second solder tape group to be sheared.

[0108] As Figure 2 and Figure 8 shown, optionally, the feeding mechanism 1 includes a basket conveying mechanism 11, a lifting mechanism 12, a docking conveying mechanism 13 and a loading conveying mechanism 14, wherein:

[0109] The basket conveying mechanism 11 is arranged below the loading conveying mechanism 14.

[0110] The lifting mechanism 12 is arranged on the side of the basket conveying mechanism 11 and the loading conveying mechanism 14. For example, the lifting mechanism 2 is located on the right side of the basket conveying mechanism 1 and the loading conveying mechanism 3. The docking conveying mechanism 13 is connected to the movable part of the lifting mechanism 12.

[0111] The lifting mechanism 12 is configured to drive the docking conveying mechanism 13 to descend to the basket changing station A, so that the docking conveying mechanism 13 is docked with the basket conveying mechanism 11.

[0112] The basket conveying mechanism 11 is configured to convey the basket 100 filled with initial battery wafers to the docking conveying mechanism 13 or receive the emptied basket 100 output by the docking conveying mechanism 13.

[0113] The lifting mechanism 12 is further configured to drive the docking conveying mechanism 13 to rise to the wafer taking station B, so that the initial battery wafer at the bottom of the basket 100 is higher than the loading conveying mechanism 14.

[0114] The loading conveying mechanism 14 is configured to extend into the basket 100, and the lifting mechanism 12 is further configured to drive the docking conveying mechanism 13 to descend, so that the initial battery wafers in the basket sequentially fall onto the loading conveying mechanism 14. The loading conveying mechanism 14 is further configured to sequentially take out the initial battery wafers in the basket and convey them to the feeding station C away from the lifting mechanism 12. The transfer mechanism 2 picks up the initial battery wafers from the feeding station.

[0115] Optionally, a plurality of storage slots are arranged at intervals in the vertical direction in the basket 100, and each storage slot stores an initial battery wafer.

[0116] Optionally, the loading conveying mechanism is a telescopic belt conveyor.

[0117] Optionally, the feeding process of the feeding mechanism 1 is as follows:

[0118] First, the lifting mechanism 12 drives the docking conveying mechanism 13 to descend to the basket changing station, so that the docking conveying mechanism 13 is docked with the basket conveying mechanism 11. Subsequently, the basket conveying mechanism 11 conveys the basket 100 filled with initial battery wafers to the docking conveying mechanism 13.

[0119] Next, the lifting mechanism 12 drives the docking conveying mechanism 13 to rise to the wafer taking station, so that the initial battery wafer at the bottom of the basket 100 is higher than the loading conveying mechanism 14. Immediately, the loading conveying mechanism 14 extends into the basket 100 and is below the initial battery wafer at the bottom of the basket 100.

[0120] Next, the lifting mechanism 12 drives the docking conveying mechanism 13 to descend, so that the initial battery wafer at the bottom of the basket 100 falls onto the loading conveying mechanism 14. The loading conveying mechanism 14 conveys the initial battery wafer that has fallen onto it towards the feeding station away from the lifting mechanism 12. After the initial battery wafer leaves the basket, the lifting mechanism 12 drives the docking conveying mechanism 13 to descend by a predetermined height (for example, the distance between adjacent two storage slots), so that the initial battery wafer at the bottom of the basket 100 at this time falls onto the loading conveying mechanism 14. The loading conveying mechanism 14 conveys the initial battery wafer that has fallen onto it towards the feeding station away from the lifting mechanism 12. And so on, all the initial battery wafers in the basket 100 are sequentially output, and the transfer mechanism 2 picks up the initial battery wafers conveyed to the feeding station.

[0121] After all the initial battery wafers in the material basket 100 are taken away, the lifting mechanism 12 drives the docking and conveying mechanism 13 to descend to the basket-changing station again, so that the docking and conveying mechanism 13 is docked with the material basket conveying mechanism 11. The docking and conveying mechanism 13 conveys the emptied material basket 100 onto the material basket conveying mechanism 11 and receives the next material basket 100 filled with battery wafers input by the material basket conveying mechanism 11.

[0122] It can be seen that through the cooperation of the material basket conveying mechanism 11, the lifting mechanism 12, the docking and conveying mechanism 13 and the feeding and conveying mechanism 14, the feeding mechanism 1 realizes the automatic removal of the initial battery wafers in the material basket and the automatic conveyance of the removed initial battery wafers to the feeding station, thus realizing the automatic feeding of the initial battery wafers. In particular, the material basket conveying mechanism 11 and the feeding and conveying mechanism 14 are arranged vertically, and the docking between them is realized through the lifting mechanism 12 and the docking and conveying mechanism 13, thereby reducing the floor space occupied by the feeding mechanism 1.

[0123] As Figure 8 shown, optionally, a battery wafer rectifying mechanism 15 is further arranged on the conveying path of the feeding and conveying mechanism 11. The battery wafer rectifying mechanism 15 is located between the wafer-taking station B and the feeding station C, and is configured to rectify the position of the initial battery wafers conveyed to the battery wafer rectifying mechanism 15, so as to prevent the initial battery wafers conveyed to the feeding station C from being skewed, and finally ensure that the transfer mechanism 2 can smoothly pick up the initial battery wafers from the feeding station C.

[0124] The battery wafer rectifying mechanism 15 can be, for example, a first rectifying member and a second rectifying member arranged in pairs on both sides of the feeding and conveying mechanism 11. The extending directions of the first rectifying member and the second rectifying member are both parallel to the conveying direction of the material basket conveying mechanism 11. When the initial battery wafers enter between the first rectifying member and the second rectifying member driven by the material basket conveying mechanism 11, the first rectifying member and the second rectifying member move closer to the middle and respectively abut against two opposite side edges of the initial battery wafers, thereby rectifying the initial battery wafers. The first rectifying member and the second rectifying member have the same structure. Optionally, the first rectifying member and the second rectifying member are rectifying plates or at least two rectifying wheels arranged side by side.

[0125] Optionally, as Figure 10 shown, the holding mechanism 3 includes a carrying platform 31, a first side clamping mechanism 32 and a second side clamping mechanism 33, wherein:

[0126] The carrying platform 31 is used for carrying and adsorbing the initial battery wafers 200 transferred by the transfer mechanism 2, so that the initial battery wafers 200 are fixed on the carrying platform 31. Optionally, adsorption holes for adsorbing the initial battery wafers 200 are arranged on the carrying platform 31.

[0127] The first-side clamping mechanism 32 is arranged on the first side of the carrier 31. The first-side clamping mechanism 32 is used for clamping the end of the first solder tape group on the initial cell 200 and pulling the first solder tape group upward, so as to form a shearing angle between the first solder tape group and the initial cell 200, facilitating the cutting of the first solder tape group by the cutting mechanism 4.

[0128] The second-side clamping mechanism 33 is arranged on the second side of the carrier 31. The second-side clamping mechanism 33 is used for clamping the end of the second solder tape group on the initial cell 200 and pulling the second solder tape group downward, so as to form a shearing angle between the second solder tape group and the initial cell 200, facilitating the cutting of the second solder tape group by the cutting mechanism 4.

[0129] Optionally, the first-side clamping mechanism 32 and the second-side clamping mechanism 33 have the same structure. Taking the first-side clamping mechanism 32 as an example, as Figure 11 shown, the first-side clamping mechanism 32 includes a lifting driving part 321, a transverse movement driving part 322, a first mounting bracket 323 and a clamping component 324, where: the first mounting bracket 323 is in transmission connection with the transverse movement driving part 321 and the lifting driving part 322, and the clamping component 324 is arranged on the first mounting bracket 323. The transverse movement driving part 322 is used for driving the clamping component 324 to move transversely to approach or move away from the first solder tape group, the clamping component 324 is used for clamping or loosening the end of the first solder tape group, and the lifting driving part 321 is used for driving the clamping component 324 to move up and down.

[0130] When it is necessary to cut the first solder tape group, the transverse movement driving part 322 first drives the clamping component 324 to move transversely towards the first solder tape group to approach the first solder tape group, and when the clamping component 324 reaches the position, it clamps the end of the first solder tape group. Then, the lifting driving part 321 drives the clamping component 324 to rise, thereby driving the clamping component 324 to pull the first solder tape group upward, so as to form a shearing angle between the first solder tape group and the initial cell.

[0131] As Figure 12 shown, optionally, the holding mechanism 3 further includes a rotation driving mechanism 34. The carrier 31 is installed at the driving end of the rotation driving mechanism 34, and the rotation driving mechanism 34 is used for driving the carrier 31 to rotate in the horizontal plane, so as to regularize the angle of the initial cell.

[0132] Optionally, the rotation driving mechanism 34 includes a motor 341, a driving wheel 342, a belt 343 and a driven wheel 344. Among them, the driving wheel 342 is connected to the driving end of the motor 341, the carrier 31 is connected to the driven wheel 344, the belt 343 is sleeved on the driving wheel 342 and the driven wheel 344, and when the motor 341 drives the driving wheel 342 to rotate, the driven wheel 344 is driven to rotate synchronously through the belt 343. The carrier 31 then rotates under the drive of the driven wheel 344.

[0133] Continue to refer to Figure 1 and Figure 2 As shown, optionally, the transfer mechanism 2 includes a first transfer mechanism 21 and a second transfer mechanism 22.

[0134] As Figure 3 and Figure 4 As shown, the first transfer mechanism 21 includes a first driving module 211, a second mounting bracket 212, and a first picking part 213, where: the second mounting bracket 212 is in transmission connection with the first driving module 211, and both the first picking part 213 and the shearing mechanism 4 are arranged on the second mounting bracket 212. The first driving module 211 is used to drive the first picking part 213 to translate and lift, so that the first picking part 213 picks up the initial battery cells from the feeding mechanism 1 and transfers the picked initial battery cells to the holding mechanism 3. In addition, the first driving module 211 is also used to drive the shearing mechanism 4 to translate and lift, so that the shearing mechanism 4 moves to the first solder tape group and the second solder tape group fixed by the holding mechanism 3 to perform shearing on at least one of the first solder tape group and the second solder tape group.

[0135] The second transfer mechanism 22 is configured to transfer the replacement battery cells on the holding mechanism 3 to the buffer table 5 and load the replacement battery cells on the buffer table 5 into the subsequent repair station.

[0136] By setting the transfer mechanism 2 as the mutually independent first transfer mechanism 21 and second transfer mechanism 22, while the second transfer mechanism 22 picks up and transfers the replacement battery cells on the holding mechanism 3, the first transfer mechanism 21 can pick up the next initial battery cell from the feeding mechanism 1 and transfer the next initial battery cell to the holding mechanism 3, thereby improving the transfer efficiency and ensuring the processing rhythm of other components.

[0137] In addition, by integrally installing the shearing mechanism 4 on the mounting bracket of the first transfer mechanism 21, the first picking part 213 and the shearing mechanism 4 of the first transfer mechanism 21 can share a set of driving modules, thereby reducing the structural complexity and equipment cost of the present application.

[0138] The first driving module 211 can adopt an existing driving device for driving the first picking part 213 to translate and lift, such as a three-axis driving device composed of an X-axis driving module, a Y-axis driving module, and a Z-axis driving module, or a multi-axis robotic arm, etc. The first picking part 213 can adopt a suction cup assembly.

[0139] Optionally, as Figure 5 and Figure 6As shown, the shearing assembly 4 includes a knife frame 41, a fixed cutter 42, a movable cutter 43 and a cutter driving member 44, wherein: the knife frame 41 is connected to the second mounting bracket 212 of the first transport mechanism 21, and the cutter driving member 44 is arranged on the knife frame 41. The fixed cutter 42 is fixedly connected to the knife frame 41, and a plurality of hook knives 421 are arranged side by side and spaced at the lower edge of the fixed cutter 42, and a support inclined surface 422 for supporting the welding strip is formed on the hook-shaped portion of the hook knife 421, and a fixed blade 423 is formed on the upper end of the support inclined surface 422. The movable cutter 43 is slidably connected to the knife frame 41 and fits with the fixed cutter 42, and a movable blade 431 cooperating with each fixed blade 423 is formed at the lower edge of the movable cutter 43. The driving end of the cutter driving member 44 is connected to the movable cutter 43, and the cutter driving member 44 is used to drive the movable cutter 43 to slide relative to the fixed cutter 42, so as to realize the position switching of the movable cutter 43 between the avoidance position and the shearing position. When the movable cutter 43 slides to the avoidance position, a gap is formed between each supporting inclined surface 423 and the movable blade 431 for the welding strip to pass through. When the movable cutter 43 slides to the shearing position, the movable blade 431 cooperates with each fixed blade 423 to shear the welding strip passing through the gap.

[0140] Taking the shearing process of the first welding ribbon group as an example, the shearing process of the shearing component 4 is as follows:

[0141] In the initial state, the shearing assembly 4 is away from the first welding strip group. The movable cutting knife 43 is at the avoidance position, and a gap is formed between the supporting inclined surface 422 of each hook knife 421 and the movable blade 431 for the welding strip to pass through.

[0142] When the first welding ribbon group needs to be sheared, the first transport mechanism 21 drives the shearing assembly 4 to move so that each hook knife 421 extends between two adjacent welding ribbons in the first welding ribbon group. The first transport mechanism 21 drives the shearing assembly 4 to descend so that each hook knife 421 passes through two adjacent welding ribbons downward.

[0143] Next, the first transport mechanism 21 drives the shearing assembly 4 to translate, so that each hook knife 421 moves to below the corresponding welding strip, and the welding strip is supported on the supporting inclined surface 422 of the hook knife 421 .

[0144] Finally, the cutter driving member 44 drives the movable cutter 43 to slide to the cutting position, and the movable blade 431 of the movable cutter 43 cooperates with the fixed blade 423 of each hook knife 421 to cut the welding strip passing therebetween.

[0145] The shearing component 4 of the above structure is particularly suitable for cutting flat welding tapes. It inserts the hook cutter 421 under the welding tape and uses the supporting inclined surface 422 of the hook cutter 421 to support the flat welding tape in an inclined state. Then, the movable cutter 43 cuts the welding tape along the thickness direction of the flat welding tape, ensuring that the flat welding tape remains in its original state without distortion after cutting, and the cutting surface is flat and free of burrs. Of course, this shearing component 4 is also applicable to cutting round welding tapes.

[0146] Of course, the shearing component 4 can also adopt a shearing device with other existing structures that can synchronously shear multiple welding tapes.

[0147] Such as Figure 7 As shown, optionally, the second transfer mechanism 22 includes a second driving module 221, a second picking part 222, a third driving module 223, and a third picking part 224, where: The second picking part 222 is installed at the driving end of the second driving module 221, and the second driving module 221 is used to drive the second picking part 222 to translate and lift, so that the second picking part 222 transfers the replacement battery cells on the holding mechanism 3 to the buffer table 5. The third picking part 224 is installed at the driving end of the third driving module 223, and the third driving module 223 is used to drive the third picking part 224 to translate and lift, so that the third picking part 224 feeds the replacement battery cells on the buffer table 5 to the subsequent repair station D.

[0148] By setting the second transfer mechanism 22, it can be realized that while the third picking part 224 feeds a replacement battery cell on the buffer table 5 to the subsequent repair station under the drive of the third driving module 223, the second picking part 222 caches another replacement battery cell on the holding mechanism 3 to the buffer table 5 under the drive of the second driving module 221, thereby further improving the transfer efficiency and ensuring the processing rhythm of other components.

[0149] Similarly, the second driving module 221 and the third driving module 223 can adopt a three-axis driving device composed of an X-axis driving module, a Y-axis driving module, and a Z-axis driving module, or a two-axis driving device composed of an X-axis driving module and a Z-axis driving module, or a multi-axis robotic arm, etc. The second picking part 222 and the third picking part 224 can adopt a suction cup assembly.

[0150] Such as Figure 13 And Figure 14 As shown, in another embodiment, the holding mechanism 3 and the buffer table 5 are arranged on the same axis, and the feeding mechanism 1 is arranged close to the buffer table 5. Optionally, the transfer mechanism 2 includes a fourth driving module 23, a fourth picking part 24, a fifth driving module 25, and a fifth picking part 26, where:

[0151] The fourth pick-up unit 24 is installed at the driving end of the fourth driving module 23. The fourth driving module 23 is used to drive the fourth pick-up unit 24 to translate and lift, so that the fourth pick-up unit 24 moves between the feeding mechanism 1, the holding mechanism 3 and the buffer table 5 to implement the transfer of the battery wafers. The fifth pick-up unit 26 is installed at the driving end of the fifth driving module 25. The fifth driving module 25 is used to drive the fifth pick-up unit 26 to translate and lift, so that the fifth pick-up unit 26 feeds the replacement battery wafers on the buffer table 5 to the subsequent repair station D.

[0152] It can be seen that while the fifth pick-up unit feeds the replacement battery wafers on the buffer table 5 to the subsequent repair station under the drive of the fifth driving module 25, the fourth pick-up unit 24 can move between the feeding mechanism 1, the holding mechanism 3 and the buffer table 5 under the drive of the fourth driving module 23 to implement the transfer of the battery wafers, thereby improving the transfer efficiency of the transfer mechanism 2 and ensuring the processing rhythm of other components.

[0153] Similarly, the fourth driving module 23 and the fifth driving module 25 can adopt a three-axis driving device composed of an X-axis driving module, a Y-axis driving module and a Z-axis driving module, or can adopt a two-axis driving device composed of an X-axis driving module and a Z-axis driving module, or can also adopt a multi-axis robotic arm, etc. The fourth pick-up unit 24 and the fifth driving module 25 can adopt a suction cup assembly.

[0154] The shearing mechanism 4 can be connected side by side with the fourth pick-up unit 24 at the driving end of the fourth driving module 23, or can be connected side by side with the fifth pick-up unit at the driving end of the fifth driving module 25. Of course, a driving module for separately driving the shearing mechanism 4 to move can also be additionally provided.

[0155] Of course, in other embodiments, the specific structure of the transfer mechanism 2 can be adjusted according to the specific layout of the feeding mechanism 1, the holding mechanism 3 and the buffer table 5.

[0156] As mentioned above, the replacement battery wafers include three types: head replacement battery wafers, middle replacement battery wafers, and tail replacement battery wafers. As Figure 7 shown, optionally, the buffer table 5 includes a first buffer table 51, a second buffer table 52 and a third buffer table 53, where: the first buffer table 51 is used to buffer the head replacement battery wafers, and the head replacement battery wafers are used to replace the defective battery wafers located at the head of the battery string to be repaired. The second buffer table 52 is used to buffer the tail replacement battery wafers, and the tail replacement battery wafers are used to replace the defective battery wafers located at the tail of the battery string to be repaired. The third buffer table 53 is used to buffer the middle replacement battery wafers, and the middle replacement battery wafers are used to replace the defective battery wafers located between the head battery wafers and the tail battery wafers of the battery string to be repaired.

[0157] By setting the buffer table 5 to include a first buffer table 51, a second buffer table 52, and a third buffer table 53, partitioned buffering of the head replacement solar cells, tail replacement solar cells, and middle replacement solar cells is achieved, ensuring that during the repair process, the transfer mechanism 2 can accurately obtain the appropriate type of replacement solar cells from the buffer table 5 and load the replacement solar cells onto the subsequent repair station.

[0158] Optionally, sensors are correspondingly arranged on the first buffer table 51, the second buffer table 52, and the third buffer table 53. When the replacement solar cells on the first buffer table 51, the second buffer table 52, and the third buffer table 53 are emptied, the corresponding sensors are triggered to generate induction signals. The holding mechanism 3 and the shearing mechanism 4 correspondingly fix and shear at least one of the first solder ribbon group and the second solder ribbon group at the upper end of the initial solar cell based on the received induction signals, thereby implementing the supplementary preparation of the corresponding type of replacement solar cells, ensuring that there are corresponding types of replacement solar cells on the first buffer table 51, the second buffer table 52, and the third buffer table 53, so that the subsequent repair mechanism can timely obtain the required type of replacement solar cells.

[0159] The sensors can be sensors such as pressure sensors and photoelectric sensors that can implement in-place induction of the replacement solar cells.

[0160] As Figures 1 to 2 shown, optionally, the solar cell loading mechanism in the embodiment of the present application further includes a first detection mechanism 6 located between the feeding mechanism 1 and the holding mechanism 3. The transfer mechanism 2 first picks up the initial solar cell from the feeding mechanism 1 and transfers the picked-up initial solar cell to the first detection mechanism 6. The first detection mechanism 6 is at least configured to perform position detection and solder ribbon length detection on the initial solar cell to obtain the position information of the initial solar cell and the length information of the first solder ribbon group and the second solder ribbon group. The transfer mechanism 2 then transfers the initially detected solar cell from the first detection mechanism 6 to the holding mechanism 3.

[0161] Before shearing the solder ribbon, the holding mechanism 3 first regularizes the initial solar cell based on the position information of the initial solar cell provided by the first detection mechanism 6. The shearing mechanism 4 then shears at least one of the first solder ribbon group and the second solder ribbon group based on the length information of the first solder ribbon group and the second solder ribbon group to ensure that the required type of replacement solar cells are obtained.

[0162] Optionally, the first detection mechanism 6 is also used to perform EL (Electroluminescent) detection on the initial solar cell and perform appearance defect detection on the lower surface of the initial solar cell.

[0163] As Figure 9, Optionally, the first detection mechanism 6 includes an EL power-on fixture 61, an EL camera 62, and a first camera 63. The transfer mechanism 2 transfers the picked initial cell 200 above the EL power-on fixture 61. The EL power-on fixture is used to clamp the first solder ribbon group and the second solder ribbon group on the initial cell 200, and to energize the initial cell 200 through the clamped first solder ribbon group and second solder ribbon group. Both the EL camera 62 and the first camera 63 are arranged below the EL power-on fixture 61. Among them, the EL camera 62 is used to obtain an infrared image of the initial cell 200 when the initial cell 200 is in an energized state to perform EL detection on the initial cell 200. The first camera 63 is used to obtain an image of the initial cell 200 when the initial cell 200 is in a non-energized state, to perform appearance detection on the lower surface of the initial cell 200, and to perform position detection and solder ribbon length detection on the initial cell.

[0164] , Optionally, both the EL camera 62 and the first camera 63 are connected to the PLC controller. The EL camera 62 sends the obtained infrared image of the initial cell 200 to the PLC controller. The PLC controller performs image analysis on the infrared image to determine whether there are internal defects in the initial cell 200. Similarly, the first camera 63 sends the obtained appearance image of the initial cell 200 to the PLC controller. The PLC controller performs image analysis on the appearance image to determine whether there are appearance defects (such as missing edges, chipping, etc.) in the initial cell 200, and to determine the position information and solder ribbon length information of the initial cell.

[0165] The EL camera 62 can adopt various existing types of infrared cameras, and the first camera 63 can adopt various existing types of visible light imaging cameras.

[0166] , Optionally, the first detection mechanism 6 further includes a first light source 64 arranged above the EL power-on fixture 61 and a second light source 65 arranged below the EL power-on fixture 61. The first light source 64 and the second light source 65 irradiate the initial cell from the upper and lower sides, so that the first camera 63 can obtain a clearer appearance image of the initial cell, improve the detection effect of appearance detection, and improve the positioning accuracy of the initial cell and the detection accuracy of the solder ribbon length.

[0167] Such as Figure 13 and Figure 14 shown, optionally, the cell loading mechanism in the embodiment of the present application further includes a second detection mechanism 7. The second detection mechanism 7 is used to perform appearance detection on the upper surface of the replacement cell, and to perform length detection on the first solder ribbon group and the second solder ribbon group on the replacement cell.

[0168] , Optionally, as Figure 13 and Figure 14As shown in the figure, the second detection mechanism 7 includes a second camera. The second camera is fixedly installed on the second camera mounting bracket 71, and the second camera mounting bracket 71 is fixed on the machine frame. The second camera is located between the buffer table 5 and the repair station in the subsequent process. The buffer table 5 is configured to be movable below the second camera. When the buffer table 5 moves below the second camera, the second camera takes pictures of the replacement battery cells on the buffer table 5 to perform appearance detection on the upper surface of the replacement battery cells and length detection on the first solder tape group and the second solder tape group on the replacement battery cells.

[0169] Setting the second detection mechanism 7 between the buffer table 5 and the repair station in the subsequent process can avoid interference between the second detection mechanism 7 and other components.

[0170] Optionally, Figure 13 and Figure 14 The battery cell loading mechanism in the embodiment shown also includes a buffer table driving module for driving the buffer table 5 to move. The buffer table 5 is installed on the buffer table driving module. The buffer table driving module drives the buffer table 5 to move back and forth between the buffer position and the detection position. When the buffer table 5 moves to the buffer position to receive the replacement battery cells transported by the transfer mechanism 2, and when the buffer table 5 moves to the detection position, the second detection mechanism 7 performs detection on the replacement battery cells on the buffer table 5. The buffer table driving module can adopt various existing linear driving devices, such as a lead screw driving device composed of a lead screw motor, a lead screw, a lead screw nut, and a mounting plate. The buffer table 5 is installed on the mounting plate, and the lead screw motor drives the mounting plate to move through the lead screw and the lead screw nut, thereby driving the buffer table 5 to move synchronously.

[0171] Optionally, the second camera is connected to the PLC controller. The second camera sends the acquired appearance image of the replacement battery cells to the PLC controller. The PLC controller performs image analysis on the appearance image to perform appearance detection on the upper surface of the replacement battery cells and length detection on the first solder tape group and the second solder tape group on the replacement battery cells. To improve the appearance detection effect of the upper surface and the detection accuracy of the solder tape length, optionally, the second detection mechanism 7 further includes a third light source 72 arranged below the second camera. When the buffer table 5 moves below the third light source 72, the third light source 72 irradiates the replacement battery cells on the buffer table 5, and the second camera takes pictures of the replacement battery cells.

[0172] The second camera can adopt various existing types of visible light imaging cameras.

[0173] Of course, in other embodiments, the second camera may also be disposed on the frame above the holding mechanism 3. After the holding mechanism 3 and the shearing mechanism 4 cooperate to complete the cutting of the first solder tape group and the second solder tape group on the initial cell to obtain the replacement cell, the second camera immediately takes a picture of the replacement cell on the holding mechanism 3 to perform appearance inspection on the upper surface of the replacement cell and length inspection on the first solder tape group and the second solder tape group on the replacement cell.

[0174] As Figure 2 and Figure 12 shown, in order to improve the appearance inspection effect of the upper surface of the replacement cell located on the carrier table and improve the solder tape length inspection accuracy, optionally, the second inspection mechanism 7 further includes a fourth light source 73 disposed below the carrier table 31 and a fifth light source 74 that can be moved above the carrier table. When the second camera above the carrier table takes a picture of the replacement cell on the holding mechanism 3, the fourth light source 73 irradiates the replacement cell from the lower side, and the fifth light source 74 irradiates the replacement cell from the upper side to increase the clarity of the appearance image of the replacement cell. Optionally, the fifth light source 74 is movably mounted on the frame through a translation module to move above the carrier table 31 or withdraw from above the carrier table 31. When the fifth light source 74 withdraws from above the carrier table 31, it can leave a working space for the shearing mechanism 4.

[0175] This application also provides a battery string repair machine, which includes the cell loading mechanism in any of the above embodiments. In addition, it further includes a repair platform, a rectifying platform, a cell placement device, a solder tape shearing device, a solder tape clamping device, and a welding device, where:

[0176] The cell loading mechanism loads the replacement cell onto the rectifying platform. That is, as described in the previous embodiments, the transfer mechanism 2 of the cell loading mechanism loads the replacement cell on the buffer table 5 to the subsequent repair station, where the "repair station" is the position where the rectifying platform is located.

[0177] The rectifying platform is used to rectify the replacement cell.

[0178] The repair platform is used to carry the battery string to be repaired, and stagger the defective cell from the first adjacent cell and / or stagger the defective cell from the second adjacent cell in the vertical direction.

[0179] The solder tape shearing device is used to cut the solder tape group between the defective cell and the first adjacent cell and / or cut the solder tape group between the defective cell and the second adjacent cell.

[0180] The cell placement device is used to pick up the replacement cell from the rectifying platform and place the replacement cell at the defective position in the battery string on the repair platform, where the defective position is the position vacated after the defective cell is removed.

[0181] The solder tape clamping device is used to clamp the first solder tape group on the replacement cell at the defect position together with the solder tape group to be lapped on the first side adjacent cell, and / or clamp the second solder tape group on the replacement cell at the defect position together with the solder tape group to be lapped on the second side adjacent cell.

[0182] The welding device is used to weld the first solder tape group on the clamped replacement cell together with the solder tape group to be lapped on the first side adjacent cell, and / or weld the second solder tape group on the clamped replacement cell together with the solder tape group to be lapped on the second side adjacent cell.

[0183] It can be seen that through the cooperation of the cell loading mechanism, the repair platform, the regularization platform, the cell placement device, the solder tape shearing device, the solder tape clamping device and the welding device, the cell string repair machine realizes the automatic repair of the cell string. In particular, by setting the cell loading mechanism, the cell string repair machine realizes the automatic preparation and automatic loading of the replacement cells required for repair, thereby further improving the repair efficiency of the cell string.

[0184] The above has described the present application in sufficient detail with a certain particularity. Those of ordinary skill in the art should understand that the description in the embodiments is only exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the protection scope of the present application. The scope to be protected by the present application is defined by the claims described, rather than by the above description in the embodiments.

Claims

1. A battery cell loading mechanism, characterized in that, the battery cell loading mechanism includes a frame and a feeding mechanism, a transfer mechanism, a holding mechanism, a shearing mechanism and a buffer table mounted on the frame, wherein: the feeding mechanism is configured to supply initial battery cells, a first solder ribbon group extending outward from the first side of the initial battery cell is connected to the upper surface of the initial battery cell, and a second solder ribbon group extending outward from the second side of the initial battery cell is connected to the lower surface of the initial battery cell; the transfer mechanism is configured to pick up the initial battery cells from the feeding mechanism and transfer the picked-up initial battery cells to the holding mechanism; the holding mechanism is configured to fix the initial battery cells transferred by the transfer mechanism and at least one of the ends of the first solder ribbon group and the ends of the second solder ribbon group on the initial battery cells; the shearing mechanism is configured to shear at least one of the ends of the fixed first solder ribbon group and the second solder ribbon group to obtain replacement battery cells, and the replacement battery cells include at least one of a head replacement battery cell, a middle replacement battery cell, and a tail replacement battery cell; the transfer mechanism is further configured to transfer the replacement battery cells on the holding mechanism to the buffer table and load the replacement battery cells on the buffer table into the subsequent repair station.

2. The battery cell loading mechanism according to claim 1, characterized in that, the feeding mechanism includes a basket conveying mechanism, a lifting mechanism, a docking conveying mechanism and a loading conveying mechanism, wherein: the basket conveying mechanism is arranged below the loading conveying mechanism; the lifting mechanism is arranged on the side of the basket conveying mechanism and the loading conveying mechanism, and the docking conveying mechanism is connected to the movable part of the lifting mechanism; the lifting mechanism is configured to drive the docking conveying mechanism to descend to the basket changing station so that the docking conveying mechanism is docked with the basket conveying mechanism; the basket conveying mechanism is configured to convey the basket filled with initial battery cells onto the docking conveying mechanism or receive the emptied basket output by the docking conveying mechanism; the lifting mechanism is further configured to drive the docking conveying mechanism to rise to the picking station so that the initial battery cell at the bottom of the basket is higher than the loading conveying mechanism; the loading conveying mechanism is configured to extend into the basket, and the lifting mechanism is further configured to drive the docking conveying mechanism to descend so that the initial battery cells in the basket sequentially fall onto the loading conveying mechanism, and the loading conveying mechanism is further configured to sequentially take out the initial battery cells in the basket and convey them to the feeding station away from the lifting mechanism; the transfer mechanism picks up the initial battery cells from the feeding station.

3. The battery cell loading mechanism according to claim 2, characterized in that, a battery cell rectifying mechanism is further arranged on the conveying path of the loading conveying mechanism, and the battery cell rectifying mechanism is located between the picking station and the feeding station and is configured to rectify the positions of the initial battery cells conveyed to the battery cell rectifying mechanism.

4. The battery cell loading mechanism according to claim 1, characterized in that, The holding mechanism includes a carrier table, a first-side clamping mechanism, and a second-side clamping mechanism, where: The carrier table is used to carry and adsorb the initial solar cell. The first-side clamping mechanism is arranged on the first side of the carrier table. The first-side clamping mechanism is used to clamp the end of the first solder ribbon group on the initial solar cell and pull the first solder ribbon group upward, so that a shear angle is formed between the first solder ribbon group and the initial solar cell. The second-side clamping mechanism is arranged on the second side of the carrier table. The second-side clamping mechanism is used to clamp the end of the second solder ribbon group on the initial solar cell and pull the second solder ribbon group downward, so that a shear angle is formed between the second solder ribbon group and the initial solar cell.

5. The solar cell loading mechanism according to claim 4, wherein, the first-side clamping mechanism and the second-side clamping mechanism have the same structure. The first-side clamping mechanism includes a lifting driving part, a transverse movement driving part, a first mounting bracket, and a clamping component, where: The first mounting bracket is in transmission connection with the transverse movement driving part and the lifting driving part, and the clamping component is arranged on the first mounting bracket; The transverse movement driving part is used to drive the clamping component to move transversely to approach or move away from the first solder ribbon group. The clamping component is used to clamp or loosen the end of the first solder ribbon group, and the lifting driving part is used to drive the clamping component to move up and down.

6. The solar cell loading mechanism according to claim 4, wherein, the holding mechanism further includes a rotation driving mechanism. The carrier table is installed at the driving end of the rotation driving mechanism, and the rotation driving mechanism is used to drive the carrier table to rotate in the horizontal plane to align the initial solar cell.

7. The solar cell loading mechanism according to claim 1, wherein, the transfer mechanism includes a first transfer mechanism and a second transfer mechanism. The first transfer mechanism includes a first driving module, a second mounting bracket, and a first picking part, where: The second mounting bracket is in transmission connection with the first driving module, and the first picking part and the shearing mechanism are both arranged on the second mounting bracket; The first driving module is used to drive the first picking part to translate and lift, so that the first picking part picks up the initial solar cell from the feeding mechanism and transfers the picked initial solar cell to the holding mechanism; The first driving module is further used to drive the shearing mechanism to translate and lift, so that the shearing mechanism moves to the fixed first solder ribbon group and second solder ribbon group; The second transfer mechanism is configured to transfer the replacement solar cell on the holding mechanism to the buffer table, and load the replacement solar cell on the buffer table to the subsequent repair station.

8. The solar cell loading mechanism according to claim 7, wherein, the second transfer mechanism includes a second driving module, a second picking part, a third driving module, and a third picking part, where: The second picking part is installed at the driving end of the second driving module, and the second driving module is used to drive the second picking part to translate and lift, so that the second picking part transports the replacement battery cell on the holding mechanism to the buffer table; The third picking part is installed at the driving end of the third driving module, and the third driving module is used to drive the third picking part to translate and lift, so that the third picking part feeds the replacement battery cell on the buffer table to the subsequent repair station.

9. The battery cell feeding mechanism according to claim 1, characterized in that the transfer mechanism includes a fourth driving module, a fourth picking part, a fifth driving module and a fifth picking part, wherein: The fourth picking part is installed at the driving end of the fourth driving module, and the fourth driving module is used to drive the fourth picking part to translate and lift, so that the fourth picking part moves between the feeding mechanism, the holding mechanism and the buffer table to implement the transfer of the battery cell; The fifth picking part is installed at the driving end of the fifth driving module, and the fifth driving module is used to drive the fifth picking part to translate and lift, so that the fifth picking part feeds the replacement battery cell on the buffer table to the subsequent repair station.

10. The battery cell feeding mechanism according to claim 1, characterized in that: the buffer table includes a first buffer table, a second buffer table and a third buffer table, wherein: The first buffer table is used to buffer the head replacement battery cell, and the head replacement battery cell is used to replace the defective battery cell located at the head of the battery string to be repaired; The second buffer table is used to buffer the tail replacement battery cell, and the tail replacement battery cell is used to replace the defective battery cell located at the tail of the battery string to be repaired; The third buffer table is used to buffer the middle replacement battery cell, and the middle replacement battery cell is used to replace the defective battery cell located between the head battery cell and the tail battery cell of the battery string to be repaired.

11. The battery cell feeding mechanism according to claim 10, characterized in that sensors are correspondingly arranged on the first buffer table, the second buffer table and the third buffer table; When the replacement battery cells on the first buffer table, the second buffer table and the third buffer table are emptied, the corresponding sensors are triggered to generate induction signals; the holding mechanism and the shearing mechanism correspondingly fix and shear at least one of the first solder tape group and the second solder tape group based on the received induction signals to obtain the corresponding replacement battery cells.

12. The battery cell feeding mechanism according to claim 1, characterized in that the battery cell feeding mechanism further includes a first detection mechanism located between the feeding mechanism and the holding mechanism; the transfer mechanism is configured to pick up the initial battery cell from the feeding mechanism and transfer the picked-up initial battery cell to the first detection mechanism; The first detection mechanism is at least configured to perform position detection and solder tape length detection on the initial battery cell to obtain the position information of the initial battery cell and the length information of the first solder tape group and the second solder tape group; The transfer mechanism is further configured to transfer the initial cell from the first detection mechanism to the holding mechanism, and the holding mechanism is further configured to regularize the initial cell based on the position information of the initial cell before shearing the solder tapes. The shearing mechanism implements shearing of at least one of the first solder tape group and the second solder tape group based on the length information of the first solder tape group and the second solder tape group.

13. The cell loading mechanism according to claim 12, wherein, the first detection mechanism is further configured to perform EL detection on the initial cell and perform appearance defect detection on the lower surface of the initial cell.

14. The cell loading mechanism according to claim 13, wherein, the first detection mechanism includes an EL power-on fixture, an EL camera, and a first camera; the transfer mechanism transfers the picked-up initial cell above the EL power-on fixture, and the EL power-on fixture is configured to clamp the first solder tape group and the second solder tape group on the initial cell and power on the initial cell; both the EL camera and the first camera are disposed below the EL power-on fixture. Among them, the EL camera is configured to obtain an infrared image of the initial cell when the initial cell is in a powered-on state to perform EL detection on the initial cell; the first camera is configured to obtain an image of the initial cell when the initial cell is in an unpowered state to perform appearance detection on the lower surface of the initial cell, and perform position detection and solder tape length detection on the initial cell.

15. The cell loading mechanism according to claim 1, wherein, the cell loading mechanism further includes a second detection mechanism, and the second detection mechanism is configured to perform appearance detection on the upper surface of the replacement cell and perform length detection on the first solder tape group and the second solder tape group on the replacement cell.

16. The cell loading mechanism according to claim 15, wherein, the second detection mechanism includes a second camera, and the second camera is fixedly disposed on the frame above the holding mechanism and is configured to take a picture of the replacement cell on the holding mechanism; or, the second detection mechanism includes a second camera, and the second camera is fixedly mounted on the frame. The second camera is disposed between the buffer table and the subsequent repair station, and the buffer table is configured to be movable below the second camera, and the second camera takes a picture of the replacement cell on the buffer table.

17. A cell string repair machine, wherein, the cell string repair machine includes the cell loading mechanism according to any one of claims 1 to 16.

18. The cell string repair machine according to claim 17, wherein, the cell string repair machine further includes a repair platform, a regularization platform, a cell placement device, a solder tape shearing device, a solder tape clamping device, and a welding device, wherein: the cell loading mechanism is configured to load the replacement cell onto the regularization platform; the regularization platform is configured to regularize the replacement cell; The repair platform is used to carry the battery string to be repaired, and stagger the defective cell and the first adjacent cell in the vertical direction, and / or stagger the defective cell and the second adjacent cell in the vertical direction; The solder strip cutting device is used to cut the solder strip group between the defective cell and the first adjacent cell, and / or cut the solder strip group between the defective cell and the second adjacent cell; The cell placing device is used to pick up the replacement cell from the regularizing platform and place the replacement cell at the defective position in the battery string on the repair platform, and the defective position is the position vacated after the defective cell is removed; The solder strip clamping device is used to clamp the first solder strip group on the replacement cell at the defective position and the solder strip group to be overlapped on the first adjacent cell together, and / or clamp the second solder strip group on the replacement cell at the defective position and the solder strip group to be overlapped on the second adjacent cell together; The welding device is used to weld the first solder strip group on the replacement cell to be clamped and the solder strip group to be overlapped on the first adjacent cell together, and / or weld the second solder strip group on the replacement cell to be clamped and the solder strip group to be overlapped on the second adjacent cell together.

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