Glue supplementing method and glue supplementing system for back contact battery piece

Abstract

The invention relates to the technical field of photovoltaic modules, in particular to a glue supplementing method and system for a back contact battery piece. The glue filling method for the back contact battery piece comprises the following steps: conveying the back contact battery piece to be detected to a glue coating detection table; the gluing detection table detects the back contact battery piece to be detected and generates a first detection result; when the first detection result is that glue repairing is needed, the back contact battery piece to be detected is conveyed to the corresponding position of the glue repairing assembly, and the glue repairing assembly carries out glue repairing on the back contact battery piece to be detected; when the first detection result is that the glue does not need to be supplemented, the back contact battery piece to be detected is conveyed to a first discharging area; and when the first detection result is that the glue cannot be supplemented, the back contact battery piece to be detected is conveyed to a second discharging area. Compared with a manual glue supplementing mode, the glue supplementing efficiency and the glue supplementing effect can be remarkably improved when the glue supplementing assembly is used for conducting glue supplementing.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic modules, and in particular to a method and system for repairing glue for back-contact solar cells. Background Art

[0002] Photovoltaic modules convert solar cells into electricity. They offer advantages such as being pollution-free, geographically unrestricted, and inexhaustible, making them a key focus for renewable energy development. To prevent short circuits during use, insulating adhesive must be printed on the back contact cells during the module manufacturing process. Automated optical inspection can detect any gaps in the insulating adhesive on the back contact cells, allowing for manual patching of any gaps. However, manual patching is difficult and inefficient. Summary of the Invention

[0003] The present application provides a method and system for filling glue for a back-contact solar cell, so as to solve the technical problem of low filling efficiency in the prior art.

[0004] In a first aspect, an embodiment of the present application provides a method for repairing glue on a back-contact solar cell, the method comprising:

[0005] Transport the back contact battery cells to be tested to the glue coating test station;

[0006] The glue coating inspection station inspects the back contact solar cell to be inspected and generates a first inspection result;

[0007] When the first detection result indicates that glue repair is required, the back contact battery cell to be detected is transported to a corresponding position of a glue repair component, and the glue repair component repairs the back contact battery cell to be detected;

[0008] When the first detection result indicates that no glue filling is required, the back contact battery cell to be detected is transported to the first discharge area;

[0009] When the first detection result is that the glue cannot be repaired, the back contact battery cell to be detected is transported to the second discharge area.

[0010] In this embodiment, by setting up a glue repair component, when the back contact battery cell to be inspected is inspected and a first inspection result is generated, the glue repair component can repair the back contact battery cell to be inspected whose first inspection result indicates that glue repair is required. Compared with the manual glue repair method, the use of the glue repair component for glue repair can significantly improve the glue repair efficiency and glue repair effect. At the same time, when the first inspection result indicates that glue repair is required, the back contact battery cell to be inspected is directly transported to the corresponding position of the glue repair component for glue repair. Compared with the glue repair method of the back contact battery cell in the related art: that is, when glue repair is required for the back contact battery cell to be inspected, the back contact battery cell to be inspected must first be transported to the unloading area, removed, and then manually repaired, the glue repair method for the back contact battery cell provided in the embodiment of the present application can eliminate the steps of transporting the back contact battery cell to be inspected to the unloading area and removing it, thereby being able to repair the back contact battery cell to be inspected that needs glue repair more quickly, thereby further improving the glue repair efficiency.

[0011] In addition, when the first test result shows that no glue repair is required, it indicates that the coating condition of the insulating glue on the back contact battery cell to be tested meets the use requirements, and the back contact battery cell to be tested will be transported to the first discharge area. When the first test result shows that glue repair is impossible, it indicates that the coating condition of the insulating glue on the back contact battery cell to be tested does not meet the use requirements, and the glue repair component repairs it, and the back contact battery cell to be tested needs to be scrapped or reworked, the back contact battery cell to be tested will be transported to the second discharge area. By placing the back contact battery cells to be tested in different situations in different areas, it can facilitate different subsequent preparation processes, thereby improving the efficiency of the overall preparation process of the back contact battery cell to be tested.

[0012] In a specific embodiment, when the first detection result indicates that glue repair is required, the back contact battery cell to be detected is transported to a corresponding position of a glue repair component. After the glue repair component repairs the back contact battery cell to be detected, the glue repair method for the back contact battery cell further includes:

[0013] The back contact battery sheet to be inspected is transported back to the adhesive coating inspection station for inspection, and a second inspection result is generated.

[0014] In a specific embodiment, after the back-contact battery cell to be inspected is transported back to the adhesive coating inspection station for inspection and a second inspection result is generated, the adhesive repair method for the back-contact battery cell further includes:

[0015] If the second inspection result indicates that glue refilling is required, the back contact battery cell to be inspected is transported again to the corresponding position of the glue refilling assembly, and the glue refilling assembly refills the back contact battery cell to be inspected; after the glue refilling assembly refills the back contact battery cell to be inspected, the back contact battery cell to be inspected is transported again back to the glue coating inspection station for inspection, and a third inspection result is generated;

[0016] Repeat the above steps until the third detection result shows that glue filling is not required, and then transport the back contact battery cell to be detected to the first discharge area.

[0017] In a specific embodiment, in the step of the adhesive coating inspection station inspecting the back contact solar cell to be inspected and generating a first inspection result, the adhesive coating method for the back contact solar cell includes:

[0018] The glue coating inspection station detects the missing printing area and the missing printing position of the back contact battery cell to be inspected;

[0019] When the ratio of the missing printing area S1 of the back contact battery cell to be tested to the entire area S2 of the back contact battery cell to be tested satisfies 0%≤S1 / S2≤2.5%, the first test result is that no glue filling is required;

[0020] When the ratio of the missing printing area S1 of the back contact solar cell to be inspected to the entire area S2 of the back contact solar cell to be inspected satisfies 2.5%<S1 / S2, and the missing printing position is located within the corresponding position of the glue repair component, the first detection result is that glue repair is required;

[0021] When the ratio of the missing printing area S1 of the back contact battery cell to be inspected to the overall area S2 of the back contact battery cell to be inspected satisfies 2.5%<S1 / S2, and the missing printing position is located outside the corresponding position of the glue filling component, the first detection result is that glue filling is impossible.

[0022] In a specific embodiment, the back-contact cell to be inspected includes a first half cell and a second half cell; in the step of transporting the back-contact cell to be inspected to a glue coating inspection station; and the glue coating inspection station inspecting the back-contact cell to be inspected and generating a first inspection result, the glue repair method for the back-contact cell specifically includes:

[0023] Transporting the first half of the battery cell and the second half of the battery cell to the glue coating inspection station;

[0024] The glue coating inspection station inspects the first half of the battery cell and the second half of the battery cell at the same time.

[0025] In a specific embodiment, after the glue coating inspection station simultaneously inspects the first half cell and the second half cell, the glue repair method for the back contact cell further includes:

[0026] When the first inspection result of the first half of the battery cell indicates that glue filling is not required and the first inspection result of the second half of the battery cell indicates that glue filling is not possible, the first half of the battery cell is transported to the third unloading area and the second half of the battery cell is transported to the second unloading area;

[0027] When the first inspection result of the first half of the battery cell is that glue filling is impossible and the first inspection result of the second half of the battery cell is that glue filling is not required, the first half of the battery cell is transported to the second unloading area and the second half of the battery cell is transported to the third unloading area.

[0028] In the second aspect, an embodiment of the present application provides a glue repair system, which includes: a glue coating detection platform and a glue repair component, and the glue repair component is connected to the glue coating detection platform through a guide rail; wherein, the glue repair system also includes a control module, and the control module is used to control the glue coating detection platform and the glue repair component to work or stop working.

[0029] In this embodiment, the glue filling system may further include a control module, which is used to control the operation or deactivation of the glue application inspection station and the glue filling assembly. Specifically, when the back contact battery cell to be inspected is transported to the glue application inspection station, the control module can control the glue application inspection station to inspect the back contact battery cell to be inspected, generate inspection results, and upload them to the control module. The control module can determine whether the back contact battery cell to be inspected requires glue filling based on the inspection results, thereby controlling the operation or deactivation of the glue filling assembly. By providing a control module in the glue filling system, the glue filling system can be automated.

[0030] In a specific embodiment, the glue coating inspection platform and the glue filling assembly are arranged along a straight line; the glue filling system is further provided with a linear motor, which is used to drive the back contact battery cell to be inspected to move between the glue coating inspection platform and the glue filling assembly.

[0031] In a specific embodiment, the back-contact cell to be inspected includes a first half cell and a second half cell that are arranged correspondingly; the first half cell and the second half cell are arranged in parallel.

[0032] In a third aspect, an embodiment of the present application further provides a glue filling system, which includes a glue coating detection table, a glue filling component, a first discharge area, a second discharge area and a third discharge area. The glue filling system is used to perform the glue filling method for the back contact battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 This is a schematic diagram of a specific embodiment of the glue filling system provided in this application;

[0035] Figure 2 This is a flow chart of a method for filling glue on a back contact solar cell provided in this application in a specific embodiment;

[0036] Figure 3 This is a flow chart of another specific embodiment of the method for filling glue for a back-contact solar cell provided in this application.

[0037] Reference numerals:

[0038] 1-Glue filling system;

[0039] 11-Glue coating test bench;

[0040] 12-Glue filling component;

[0041] 13- Photoluminescence detection station;

[0042] 14-Appearance inspection table;

[0043] 15-first unloading area;

[0044] 16- second unloading area;

[0045] 17-the third unloading area;

[0046] 18-loading platform;

[0047] 19- Back contact cell to be tested;

[0048] 191-the first half of the battery cell;

[0049] 192-the second half of the battery cell;

[0050] 20-Guide rails. DETAILED DESCRIPTION

[0051] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0052] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0053] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0054] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0055] Photovoltaic modules can convert solar cells into electrical energy. They have the advantages of being pollution-free, not geographically restricted, and inexhaustible. Therefore, they have become the main direction for the development of new energy. Back-contact cells are a type of photovoltaic cells. In order to avoid short circuits in back-contact cells during use, insulating glue needs to be printed on the cells of the back-contact cells during the preparation process of the back-contact cells. After the initial printing is completed, the back-contact cells need to be inspected by automatic optical inspection equipment to determine whether there is any leakage of insulating glue. When the area of ​​leakage exceeds the specified area, the leakage position needs to be manually filled with glue, but manual filling is difficult and the filling process is complicated, resulting in low filling efficiency.

[0056] In order to solve the above technical problems, Figure 1 and Figure 2 As shown, an embodiment of the present application provides a method for repairing glue on a back-contact solar cell. The method for repairing glue on a back-contact solar cell includes but is not limited to the following steps:

[0057] S11: transporting the back contact cell 19 to be inspected to the adhesive coating inspection station 11;

[0058] S12: The glue coating inspection station 11 inspects the back contact cell 19 to be inspected and generates a first inspection result;

[0059] S13: When the first detection result indicates that glue repair is required, the back contact battery cell 19 to be detected is transported to the corresponding position of the glue repair component 12, and the glue repair component 12 repairs the back contact battery cell 19 to be detected;

[0060] S14: When the first inspection result indicates that no glue filling is required, the back contact battery cell 19 to be inspected is transported to the first unloading area 15;

[0061] S15 : When the first detection result shows that the adhesive cannot be repaired, the back contact battery cell 19 to be inspected is transported to the second discharge area 16 .

[0062] In this embodiment, by providing a glue repair component 12, after the back-contact cell 19 to be inspected is inspected and a first inspection result is generated, the glue repair component 12 can repair the back-contact cell 19 to be inspected for which the first inspection result indicates that glue repair is required. Compared with manual glue repair, using the glue repair component 12 for glue repair can significantly improve glue repair efficiency and glue repair effect. At the same time, when the first inspection result indicates that glue repair is required, the back-contact cell 19 to be inspected is directly transported to the corresponding position of the glue repair component 12 for glue repair. Compared with the glue repair method for back-contact cells in the related art, that is, when glue repair is required for the back-contact cell 19 to be inspected, the back-contact cell 19 to be inspected must first be transported to the unloading area, removed, and then manually repaired, the glue repair method for back-contact cells provided in the embodiment of the present application can eliminate the steps of transporting the back-contact cell 19 to the unloading area and removing it, thereby enabling faster glue repair for the back-contact cell 19 to be inspected that requires glue repair, thereby further improving glue repair efficiency.

[0063] In addition, when the first test result indicates that no glue refilling is required, it indicates that the coating condition of the insulating glue on the back contact battery cell 19 to be tested meets the use requirements, and the back contact battery cell 19 to be tested will be transported to the first discharge area 15. When the first test result indicates that glue refilling is impossible, it indicates that the coating condition of the insulating glue on the back contact battery cell 19 to be tested does not meet the use requirements, and the glue refilling component 12 cannot refill it, and the back contact battery cell 19 to be tested needs to be scrapped or reworked, the back contact battery cell 19 to be tested will be transported to the second discharge area 16. By placing the back contact battery cells 19 to be tested in different situations in different areas, it can facilitate different subsequent preparation processes, thereby improving the efficiency of the overall preparation process of the back contact battery cell 19 to be tested.

[0064] like Figure 1 As shown, the embodiment of the present application further provides a glue filling system 1 for performing the above-mentioned glue filling method for back contact solar cells. The glue filling system 1 may include a glue coating and inspection station 11, a glue filling assembly 12, a first discharge area 15, a second discharge area 16 and other components.

[0065] In this embodiment, by providing a glue filling system with a glue filling assembly 12, automatic glue filling can be performed on the back-contact solar cells 19 to be inspected. This improves glue filling efficiency and simplifies the steps in the glue filling process, eliminating labor costs and achieving the effect of reducing costs and increasing efficiency. Furthermore, the provision of the first discharge area 15 and the second discharge area 16 enables pre-classification of products in different situations, facilitating the subsequent preparation of the back-contact solar cells 19 to be inspected.

[0066] In the above embodiment, Figure 1 As shown, the glue filling system 1 may further include a control module, which is used to control the glue coating detection platform 11 and the glue filling component 12 to work or stop working.

[0067] In this embodiment, the glue filling system 1 may further include a control module, which is used to control the glue coating inspection station 11 and the glue filling component 12 to work or stop working. Specifically, when the back contact battery cell 19 to be inspected is transported to the glue coating inspection station 11, the control module can control the glue coating inspection station 11 to work to inspect the back contact battery cell 19 to be inspected, so as to generate the inspection results and upload them to the control module. The control module can determine whether the back contact battery cell 19 to be inspected needs to be glued based on the inspection results, thereby controlling the glue filling component 12 to work or stop working. By providing a control module in the glue filling system 1, the glue filling system 1 can be automated.

[0068] Among them, the control module in the embodiment of the present application can be a programmable logic controller (PLC). In other embodiments, the control module can also be other types of information interaction devices. The embodiment of the present application does not limit the specific form of the control module.

[0069] In a specific embodiment, Figure 1 and Figure 2 As shown, when the first detection result indicates that adhesive filling is required, after step S13, the adhesive filling method for a back contact solar cell provided in the embodiment of the present application may further include:

[0070] S16: transporting the back contact cell 19 to be inspected back to the glue coating inspection station 11 for inspection, and generating a second inspection result.

[0071] In this embodiment, after the back-contact cell 19 to be inspected, which has the first inspection result indicating that it needs to be inspected, is repaired, the repaired back-contact cell 19 to be inspected can be directly returned to the adhesive coating inspection station 11 for re-inspection, and a second inspection result is generated, i.e., the repair condition is inspected. Compared with the method for repairing the back-contact cell in the related art, which is to remove the back-contact cell 19 to be inspected from the unloading station, perform manual repair, and then load it onto the loading station after repair and transport it to the adhesive coating inspection station 11 for inspection, the method for repairing the back-contact cell provided in the embodiment of the present application can eliminate the step of re-loading after repairing, simplify the repair process, and further improve the efficiency of repairing the back-contact cell 19 to be inspected.

[0072] In the above embodiment, the glue application and inspection platform 11 and the glue application assembly 12 in the glue application and inspection system 1 can be arranged along a straight line. The glue application and inspection system 1 can also be provided with a linear motor for driving the back contact cell 19 to be inspected to move between the glue application and inspection platform 11 and the glue application and inspection assembly 12.

[0073] In this embodiment, the glue application inspection platform 11 and the glue application assembly 12 in the glue application system 1 are arranged along a straight line, which can reduce the distance between them and enable the back-contact cell 19 to be inspected to move more quickly between the two. This further shortens the time required for inspecting and applying glue to the back-contact cell 19 to be inspected, thereby further improving glue application efficiency. Furthermore, the glue application inspection platform 11 and the glue application assembly 12 are arranged along a straight line, so that the driving element that drives the back-contact cell 19 to be inspected between them can be a linear motor, eliminating the need for a gear or screw transmission device. This can simplify the structure, reduce the overall volume of the glue application system, reduce its footprint, and reduce the manufacturing cost of the glue application system. Furthermore, linear motors have the advantages of high drive efficiency, high positioning accuracy, and good motion stability. When driving the back-contact cell 19 to be inspected to move between the glue application inspection platform 11 and the glue application assembly 12, they can improve the speed and stability of the movement of the back-contact cell 19 to be inspected, thereby further improving the efficiency and reliability of the glue application system 1.

[0074] Among them, the control module can also be used to control the linear motor to work or stop working, and the control module can adjust the driving direction of the linear motor to drive the back contact battery cell 19 to be tested toward the glue coating detection table 11 or toward the glue filling component 12.

[0075] In a specific embodiment, Figure 1 and Figure 2 As shown, when the first detection result indicates that adhesive filling is required, after step S16, the adhesive filling method for a back contact solar cell provided in the embodiment of the present application may further include:

[0076] S17: When the second detection result shows that glue repair is required, the back contact battery cell 19 to be detected is transported again to the corresponding position of the glue repair component, and the glue repair component 12 repairs the back contact battery cell 19 to be detected; after the glue repair component 12 repairs the back contact battery cell 19 to be detected, the back contact battery cell 19 to be detected is transported again back to the glue coating inspection station 11 for inspection, and a third detection result is generated; the above steps are repeated until the third detection result shows that glue repair is not required, and the back contact battery cell 19 to be detected is transported to the first discharge area 15.

[0077] S18 : When the second inspection result shows that glue filling is not required, the back contact battery cell 19 to be inspected is transported to the first discharge area 15 .

[0078] In this embodiment, when the second detection result still shows that glue repair is required, it means that the back contact battery cell 19 to be detected still does not meet the usage requirements after the first glue repair. At this time, the back contact battery cell 19 to be detected can be transported to the corresponding position of the glue repair component 12 for glue repair again, and then returned to the glue coating detection station 11 for detection and generate a third detection result. The above steps are repeated until the detection result shows that glue repair is not required, thereby ensuring that the missing printing area of ​​the back contact battery cell 19 to be detected after glue repair meets the preset requirements, thereby improving the glue repair reliability of the glue repair system for the back contact battery cell 19 to be detected.

[0079] In the above embodiment, Figure 1 As shown, the glue coating inspection station 11 can simultaneously inspect the missing printing area and missing printing coordinates of the insulating glue on the back contact battery cell 19 to be inspected.

[0080] In step S12, when the ratio of the missing printing area S1 of the back contact cell 19 to be inspected to the total area S2 of the back contact cell 19 to be inspected satisfies 0% ≤ S1 / S2 ≤ 2.5%, the first inspection result indicates that no adhesive patching is required. For example, the ratio of the missing printing area S1 to the total area S2 can be 0%, 1.5%, 2.5%, etc.

[0081] When the ratio of the missing printing area S1 of the back contact battery cell 19 to be inspected to the overall area S2 of the back contact battery cell 19 to be inspected satisfies 2.5%<S1 / S2, for example, the ratio of the missing printing area S1 to the overall area S2 is 3%, 5%, 7%, etc., and the missing printing position is located within the corresponding position of the glue filling component 12, the first detection result is that glue filling is required.

[0082] When the ratio of the missing printing area S1 of the back contact battery cell 19 to be inspected to the overall area S2 of the back contact battery cell 19 to be inspected satisfies 2.5%<S1 / S2, for example, the ratio of the missing printing area S1 to the overall area S2 is 3%, 5%, 7%, etc., and the missing printing position is located outside the corresponding position of the glue filling component 12, the first detection result is that glue filling cannot be performed.

[0083] In this embodiment, by distinguishing the first inspection results of the back-contact cell 19 to be inspected based on the omitted printing area and the omitted printing coordinates, the accuracy of the first inspection results can be improved, and it is easier to distinguish between situations where glue repair is required and situations where glue repair is not possible. This prevents back-contact cell 19 to be inspected with a large omitted printing area but unable to be glued from waiting in the glue repair process, causing a pile of back-contact cell 19 to be inspected and affecting glue repair efficiency. At the same time, it can also reduce costs and avoid the waste of performing partial glue repair on back-contact cell 19 to be inspected that needs to be reworked or scrapped.

[0084] In other embodiments, the criterion for determining whether the back contact cell 19 to be inspected needs to be refilled may also be other values, that is, other ratios of the missing area S1 and the overall area S2 may be used as the criterion.

[0085] In the above embodiment, the back-contact cell 19 to be inspected can be a whole cell. In other embodiments, the back-contact cell 19 to be inspected can also be a half-cell. The adhesive repair method and adhesive repair system provided in the embodiments of the present application can simultaneously inspect or repair two cut half-cells.

[0086] In a specific embodiment, Figure 1 and Figure 3 As shown, the back contact cell 19 to be inspected may include a first half cell 191 and a second half cell 192. When performing glue repair on the first half cell 191 and the second half cell 192, the glue repair method may include but is not limited to the following steps:

[0087] P11: transporting the first half of the battery cell 191 and the second half of the battery cell 192 to the glue coating inspection station 11;

[0088] P12: The glue coating inspection station 11 inspects the first half of the battery cell 191 and the second half of the battery cell 192 at the same time.

[0089] In this embodiment, when the back contact cell 19 to be inspected consists of half a cell, the glue repair system 1 can simultaneously inspect the two corresponding first half cells 191 and second half cells 192 , thereby further improving the inspection efficiency.

[0090] In a specific embodiment, Figure 1 As shown, the first half cell 191 and the second half cell 192 may be arranged in parallel.

[0091] In this embodiment, the first half of the battery cell 191 and the second half of the battery cell 192 are arranged in parallel, so that the linear motor can simultaneously drive the first half of the battery cell 191 and the second half of the battery cell 192 to move between the glue coating inspection platform 11 and the glue filling component 12, so that the glue coating inspection platform 11 can simultaneously inspect the first half of the battery cell 191 and the second half of the battery cell 192, thereby improving the inspection efficiency.

[0092] In a specific embodiment, Figure 1 and Figure 3 As shown, after step P12, the back contact solar cell adhesive repair method provided by the embodiment of the present application may further include:

[0093] P13: When the first inspection result of the first half of the battery cell 191 indicates that it does not need to be glued, and the first inspection result of the second half of the battery cell 192 indicates that it cannot be glued, the first half of the battery cell 191 is transported to the third unloading area 17, and the second half of the battery cell 192 is transported to the second unloading area 16;

[0094] P14: When the first inspection result of the first half of the battery cell 191 is that it cannot be glued, and the first inspection result of the second half of the battery cell 192 is that glue is not needed, the first half of the battery cell 191 is transported to the second unloading area 16, and the second half of the battery cell 192 is transported to the third unloading area 17.

[0095] In this embodiment, since the first half cell 191 and the second half cell 192 must be used in conjunction with each other, when the test result of either half cell 191 indicates that it does not require glue repair and the test result of the other half cell 192 indicates that glue repair is impossible, the half cell that cannot be glued can be transported to the second unloading area 16 for rework or scrapping, and the half cell that does not require glue repair can be transported to the third unloading area 17 for storage. For example, when the test result of the first half cell 191 indicates that it does not require glue repair and the test result of the second half cell 192 indicates that glue repair is impossible, the second half cell 192 is transported to the second unloading area 16 for rework or scrapping, and the first half cell 191 is transported to the third unloading area 17 for storage. When the subsequent detection result shows that the second half of the battery cell 192 does not need to be glued and the first half of the battery cell 191 cannot be glued, the first half of the battery cell 191 placed in the third discharge area 17 can be used in conjunction with the second half of the battery cell 192, avoiding the waste of half a battery cell due to the inability to pair up the half battery cell that meets the use requirements.

[0096] In the above embodiment, Figure 1 As shown, by setting up the third discharge area 17 in the glue filling system 1, the qualified first half-cell battery cells 191 or the second half-cell battery cells 192 can be stored, avoiding the waste of half-cell battery cells due to the inability to be paired and used.

[0097] In the above embodiments, Figure 1 As shown, the glue application inspection station 11 and the glue repair assembly 12 can be connected by a guide rail 20. Clamping assemblies can be provided on both sides of the guide rail 20. The back contact battery cell 19 to be inspected can be moved in the glue repair system 1 via the guide rail 20. The clamping assemblies can clamp the back contact battery cell 19 to be inspected so that it can be placed or removed. The glue repair system 1 can also be provided with a loading station 18 for loading the back contact battery cell 19 to be inspected so that it can move along the guide rail 20 to the glue application inspection station 11.

[0098] In the above embodiments, the glue repair system 1 may further be provided with a photoluminescence inspection station 13 for inspecting whether cracks occur in the back contact cell 19 to be inspected and an appearance inspection station 14 for inspecting the appearance of the back contact cell 19 to be inspected.

[0099] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for repairing glue on a back contact solar cell, characterized in that: The method for filling glue on the back contact solar cell comprises: Transporting the back contact battery sheet (19) to be tested to the glue coating test station (11); The glue coating detection station (11) detects the back contact battery sheet (19) to be detected and generates a first detection result; When the first detection result indicates that glue repair is required, the back contact battery cell (19) to be detected is transported to a corresponding position of the glue repair component (12), and the glue repair component (12) repairs the back contact battery cell (19) to be detected; When the first detection result indicates that glue filling is not required, the back contact battery sheet (19) to be detected is transported to the first discharge area (15); When the first detection result indicates that the glue cannot be repaired, the back contact battery sheet (19) to be detected is transported to the second discharge area (16).

2. The method for repairing glue of a back contact solar cell according to claim 1, characterized in that: When the first detection result indicates that glue repair is required, the back contact battery cell (19) to be detected is transported to a corresponding position of the glue repair component (12), and after the glue repair component (12) repairs the back contact battery cell (19) to be detected, the glue repair method for the back contact battery cell further includes: The back contact battery sheet (19) to be inspected is transported back to the glue coating inspection station (11) for inspection, and a second inspection result is generated.

3. The method for repairing glue of a back contact solar cell according to claim 2, characterized in that: After the back contact battery sheet (19) to be inspected is transported back to the adhesive coating inspection station (11) for inspection and a second inspection result is generated, the adhesive filling method for the back contact battery sheet further includes: When the second detection result indicates that glue repair is required, the back contact battery cell (19) to be detected is transported again to the corresponding position of the glue repair component (12), and the glue repair component (12) repairs the back contact battery cell (19) to be detected; after the glue repair component (12) repairs the back contact battery cell (19) to be detected, the back contact battery cell (19) to be detected is transported again and returned to the glue coating detection station (11) for detection, and a third detection result is generated; Repeat the above steps until the third detection result shows that glue filling is not required, and then transport the back contact battery sheet (19) to be detected to the first discharge area (15).

4. The method for repairing glue on a back contact solar cell according to any one of claims 1 to 3, characterized in that: In the step of the glue coating detection station (11) detecting the back contact battery sheet (19) to be detected and generating a first detection result, the glue filling method for the back contact battery sheet includes: The glue coating detection station (11) detects the missing printing area and the missing printing position of the back contact battery sheet (19) to be detected; When the ratio of the missing printing area S1 of the back contact battery sheet (19) to be detected to the overall area S2 of the back contact battery sheet (19) to be detected satisfies 0%≤S1 / S2≤2.5%, the first detection result is that no glue filling is required; When the ratio of the missing printing area S1 of the back contact battery sheet (19) to be detected to the overall area S2 of the back contact battery sheet (19) to be detected satisfies 2.5%<S1 / S2, and the missing printing position is located within the corresponding position of the glue filling component (12), the first detection result is that glue filling is required; When the ratio of the missing printing area S1 of the back contact battery cell (19) to be detected to the overall area S2 of the back contact battery cell (19) to be detected satisfies 2.5%<S1 / S2, and the missing printing position is located outside the corresponding position of the glue filling component (12), the first detection result is that glue filling is impossible.

5. The method for back contact solar cell adhesive repair according to claim 1, characterized in that: The back contact battery cell (19) to be inspected comprises a first half battery cell (191) and a second half battery cell (192); in the step of transporting the back contact battery cell (19) to be inspected to a glue coating inspection station (11); and the glue coating inspection station (11) inspects the back contact battery cell (19) to be inspected and generates a first inspection result, the glue repair method for the back contact battery cell specifically comprises: Transporting the first half cell and the second half cell to the glue coating inspection station (11); The glue coating inspection station (11) simultaneously inspects the first half cell (191) and the second half cell (192).

6. The method for repairing glue of a back contact solar cell according to claim 5, characterized in that: After the glue coating inspection station (11) simultaneously inspects the first half cell (191) and the second half cell (192), the glue repair method for the back contact cell further includes: When the first detection result of the first half battery cell (191) is that glue filling is not required and the first detection result of the second half battery cell (192) is that glue filling is not possible, the first half battery cell (191) is transported to the third unloading area (17) and the second half battery cell (192) is transported to the second unloading area (16); When the first detection result of the first half battery cell (191) is that it cannot be glued, and the first detection result of the second half battery cell (192) is that it does not need to be glued, the first half battery cell (191) is transported to the second discharge area (16), and the second half battery cell (192) is transported to the third discharge area (17).

7. A glue filling system, characterized in that: The glue filling system (1) comprises: Glue coating test station (11); A glue filling component (12), wherein the glue filling component (12) is connected to the glue coating detection platform (11) via a guide rail (20); The glue filling system (1) further comprises a control module, and the control module is used to control the glue coating detection platform (11) and the glue filling component (12) to operate or stop operating.

8. The glue filling system according to claim 7, characterized in that: The glue coating detection platform (11) and the glue filling component (12) are arranged along a straight line; The glue filling system (1) is further provided with a linear motor, and the linear motor is used to drive the back contact battery sheet (19) to be inspected to move between the glue coating inspection platform (11) and the glue filling assembly (12).

9. The glue filling system according to claim 8, characterized in that: The back contact battery cell (19) to be detected comprises a first half battery cell (191) and a second half battery cell (192) which are arranged correspondingly; the first half battery cell (191) and the second half battery cell (192) are arranged in parallel.

10. A glue filling system, characterized in that: The glue filling system (1) comprises a glue coating detection station (11), a glue filling component (12), a first discharge area (15), a second discharge area (16) and a third discharge area (17), and the glue filling system (1) is used to perform the glue filling method for the back contact battery cell according to any one of claims 1 to 6.

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