Device for repairing abnormal laser scribing of perovskite photovoltaic module

Abstract

The utility model belongs to the technical field of preparation of perovskite photovoltaic modules, and relates to a repairing device for abnormal laser scribing of a perovskite photovoltaic module, which comprises a workbench for placing the perovskite photovoltaic module to be repaired and a control box, and a controller, an IV test system and an EL test system are respectively arranged in the control box. An array light source and an infrared camera are arranged at the top of the working table, a manipulator is arranged at the side part of the working table, the tail end of the manipulator is provided with a sintering assembly for repairing a laser scribing line which is not cut off, the infrared camera shoots an EL image of a perovskite photovoltaic assembly to be repaired, and image analysis software is arranged in the controller. According to the utility model, by combining EL testing and precise positioning sintering technologies, a defect area with incomplete cutting and scribing can be effectively detected and repaired in the production process of the perovskite photovoltaic module, so that the production yield of the perovskite photovoltaic module and the efficiency of the perovskite photovoltaic module are improved.

Description

Technical Field

[0001] This utility model belongs to the field of perovskite photovoltaic module manufacturing technology, and specifically relates to a repair device for abnormal laser scribing of perovskite photovoltaic modules. Background Technology

[0002] During the laser cutting and scribing process of perovskite photovoltaic modules, incomplete cutting in certain areas is common, leading to short circuits or poor contacts within the module. These defects cannot be fully identified through visual inspection before assembly and are typically only discovered through subsequent electroluminescence (EL) imaging. Incomplete laser cutting and scribing are difficult to repair and increase the scrap rate of perovskite photovoltaic modules, impacting the stability and efficiency of the products. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a repair device for abnormal laser scribing of perovskite photovoltaic modules. By combining EL (electroluminescence) testing and precise positioning sintering technology, it can effectively detect and repair defective areas with incomplete cutting and scribing during the production process of perovskite photovoltaic modules, thereby improving the yield rate and efficiency of perovskite photovoltaic modules.

[0004] This invention provides a repair device for abnormal laser scribing on perovskite photovoltaic modules. The device includes a worktable for placing the perovskite photovoltaic module to be repaired. The repair device also includes a control box containing a controller, an IV testing system, and an EL testing system. The IV and EL testing systems are connected to the perovskite photovoltaic module to be repaired via wires. An array light source and an infrared camera are respectively installed on the top of the worktable. A robotic arm is installed on the side of the worktable, and a sintering component for repairing uncut laser scribing lines on the perovskite photovoltaic module is installed at the end of the robotic arm. The controller controls the operation of the array light source and the infrared camera. The EL testing system powers the perovskite photovoltaic module to be repaired, and the infrared camera captures EL images of the perovskite photovoltaic module. The controller contains image analysis software.

[0005] Furthermore, the array light source is an LED light source or a xenon lamp, and the array light source provides illumination conditions of 0.5sun to 1.5sun.

[0006] Furthermore, the sintering assembly provides a sintering temperature of 500℃~1000℃.

[0007] Compared with existing technologies, this invention provides a repair device for abnormal laser scribing in perovskite photovoltaic modules. The device includes a worktable for placing the perovskite photovoltaic module to be repaired and a control box. The control box houses a controller, an IV testing system, and an EL testing system. An array light source and an infrared camera are mounted on the top of the worktable. A robotic arm is positioned on the side of the worktable, and a sintering component for repairing incompletely cut laser scribing lines is attached to the end of the robotic arm. The infrared camera captures EL images of the perovskite photovoltaic module to be repaired, and the controller contains image analysis software. This invention, by combining EL (electroluminescence) testing with precise positioning sintering technology, can effectively detect and repair defective areas with incomplete cutting and scribing during the production process of perovskite photovoltaic modules, thereby improving the yield and efficiency of perovskite photovoltaic module production. Attached Figure Description

[0008] Figure 1 This is a perspective view of a preferred embodiment of the present invention;

[0009] Figure 2a and Figure 2b These are schematic diagrams of EL images of the perovskite photovoltaic module before and after repair in Example 1.

[0010] Figure 3a and Figure 3b These are schematic diagrams of EL images of the perovskite photovoltaic module before and after repair in Example 2. Detailed Implementation

[0011] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0012] Please refer to Figure 1 As shown, a preferred embodiment of the repair device for abnormal laser scribing of perovskite photovoltaic modules of the present invention includes a worktable 1 for placing the perovskite photovoltaic module A to be repaired and a control box 2.

[0013] A controller, an IV testing system, and an EL testing system (not shown in the figure) are respectively installed in control box 2. The IV testing system and the EL testing system are connected to the perovskite photovoltaic module A to be repaired via wires. An array light source 3 and an infrared camera 4 are respectively installed on the top of the workbench 1. A robot arm 5 is installed on the side of the workbench 1, and a sintering component 6 for repairing the incomplete laser scribing on the perovskite photovoltaic module A is installed at the end of the robot arm 5. The controller controls the operation of the array light source 3 and the infrared camera 4. The EL testing system powers the perovskite photovoltaic module A to be repaired, and the infrared camera 4 captures the EL image of the perovskite photovoltaic module to be repaired. The controller has image analysis software. The image analysis software automatically identifies the area on the perovskite photovoltaic module A where the laser scribing is not completely cut by analyzing the EL image, and automatically marks the location of the defect through software algorithms. The controller operates the sintering component 6 on the robot arm 5 to repair the defect area and cut off the incomplete laser scribing on the perovskite photovoltaic module A.

[0014] The array light source 3 is an LED light source or a xenon lamp, and the array light source 3 provides illumination conditions of 0.5sun to 1.5sun.

[0015] The sintering component 6 provides a sintering temperature of 500℃~1000℃. The sintering temperature enables the effective cutting and repair of uncut laser scribing lines.

[0016] The repair device for abnormal laser scribing of perovskite photovoltaic modules of this utility model is used as follows:

[0017] 1. The perovskite photovoltaic module A to be processed is placed on workbench 1. An EL testing system is used to perform an EL test on perovskite photovoltaic module A. An infrared camera 4 captures an EL image of perovskite photovoltaic module A. Simultaneously, array light source 3 is turned on, and perovskite photovoltaic module A is connected to the IV testing system to complete the IV test. The IV test data is saved, and the EL image from the EL test is transmitted to the controller.

[0018] 2. The controller determines whether the laser scribing of the perovskite photovoltaic module A to be processed is qualified based on the received IV test data and EL image. If qualified, another perovskite photovoltaic module A to be processed is used, and step 1 is repeated.

[0019] 3. When an abnormal laser scribing area is automatically identified on the perovskite photovoltaic module A, the controller automatically and accurately determines the defective area and transmits its coordinates to the robotic arm 5. The robotic arm 5 then drives the sintering module 6 to cut off the uncut laser scribing within the defective area. This process continues until all defects are removed.

[0020] 4. Test the repaired perovskite photovoltaic module A again using the IV and EL testing systems. Repeat step 1 until all defects on perovskite photovoltaic module A are repaired and pass inspection. Use the laser scribing repair device of this invention to repair the perovskite photovoltaic module A.

[0021] The following specific embodiments and comparative examples further illustrate the effectiveness of the repair device for abnormal laser scribing of perovskite photovoltaic modules according to this invention.

[0022] Example 1

[0023] A perovskite photovoltaic module A to be modified was selected and repaired using the laser scribing anomaly repair device of this invention. The IV data and EL images before and after repair were tested, and the following results were obtained.

[0024] The EL image of the perovskite photovoltaic module A before restoration is as follows: Figure 2a As shown, in the EL image of the perovskite photovoltaic module A, six sections are lit up, one section is not lit up, one section on the right is black, and there is also a sticking phenomenon between the laser scribing lines of each individual section.

[0025] The restored EL image of the perovskite photovoltaic module A is as follows: Figure 2b As shown, in the EL image of the perovskite photovoltaic module A, all seven sections are lit up, and the laser scribing lines between each section are clearly broken, with no adhesion.

[0026] The IV test data of the perovskite photovoltaic module A before and after repair were compared and obtained in Table 1.

[0027] Table 1. Comparison of IV test data of perovskite photovoltaic modules before and after repair in Example 1.

[0028] Voc(V) <![CDATA[Jsc(mA / cm 2 )]]> FF Efficiency (%) Before repair 6.34 20.78 62.19 11.69 After repair 7.31 21.02 70.03 15.36 Example 2

[0029] A large-area perovskite photovoltaic module A to be modified was selected and repaired using the laser scribing anomaly repair device of this invention. The IV data and EL images before and after repair were tested, and the following results were obtained.

[0030] The EL image of the large-area perovskite photovoltaic module A before restoration is as follows: Figure 3a As shown, in the EL image of the large-area perovskite photovoltaic module A, there are multiple areas on the right side that were not laser-etched or cut off, resulting in short circuits.

[0031] The restored EL image of the large-area perovskite photovoltaic module A is as follows: Figure 3b As shown, the EL image of the large-area perovskite photovoltaic module A has returned to normal across the entire area.

[0032] Table 2 shows a comparison of the IV test data of the large-area perovskite photovoltaic module A before and after repair.

[0033] Table 2. Comparison of IV test data for large-area perovskite photovoltaic modules before and after repair in Example 2.

[0034] condition Voc / <![CDATA[Jsc / mA·cm 2 ]]> FF PCE / % Isc / A Pmax / W Before repair 1.01 17.79 61.65 11.12 0.66 76.72 After repair 1.05 18.5 75.56 14.8 0.68 102.09

[0035] As can be seen from Table 2, the power and stability of the perovskite photovoltaic module A were significantly improved after repair, and the film layer had no obvious defects, achieving the expected results.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A repair device for abnormal laser scribing of perovskite photovoltaic modules, comprising a worktable for placing the perovskite photovoltaic module to be repaired, characterized in that, The repair device also includes a control box, which houses a controller, an IV testing system, and an EL testing system. The IV and EL testing systems are connected to the perovskite photovoltaic module to be repaired via wires. An array light source and an infrared camera are mounted on the top of the workbench, and a robotic arm is mounted on the side of the workbench. At the end of the robotic arm is a sintering component for repairing uncut laser scribing lines on the perovskite photovoltaic module. The controller controls the operation of the array light source and the infrared camera. The EL testing system powers the perovskite photovoltaic module to be repaired, and the infrared camera captures EL images of the perovskite photovoltaic module. The controller contains image analysis software.

2. The repair device for abnormal laser scribing of perovskite photovoltaic modules as described in claim 1, characterized in that, The array light source is an LED light source or a xenon lamp.

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