An electrical performance testing device for solar photovoltaic panels

Abstract

The present invention relates to the technical field of electrical performance testing, and in particular to an electrical performance testing device for solar photovoltaic panels. The device comprises a base plate, a roller conveyor, a solar simulator, etc. The roller conveyor is installed on the base plate, the roller conveyor is used to transport the photovoltaic panel, and the solar simulator is installed on the base plate. The present invention cooperates with a limiting mechanism and a wiring mechanism to automatically transport the photovoltaic panel to a specified position by using a roller conveyor, and automatically connect and energize the photovoltaic panel, and then moves it between the photovoltaic panel and the solar simulator through a transparent frame, and then by adding mixed liquids with different solubilities into the transparent frame in turn, the mixed liquids with different solubilities can form similar "shields" with different light transmittances with the transparent frame in turn. In this way, the energy conversion efficiency of the photovoltaic panel under different shielding conditions can be automatically tested, thereby facilitating the electrical performance testing of batches of photovoltaic panels. It is not only simple to operate, but also time-saving and labor-saving, and highly efficient.

Description

Technical Field

[0001] The invention relates to the technical field of electrical performance testing, and in particular to an electrical performance testing device for a solar photovoltaic panel. Background Art

[0002] With the transformation of the global energy structure and the advancement of sustainable development strategies, solar energy as a clean and renewable energy has received unprecedented attention; solar photovoltaic panels (also known as solar panels), as core devices that directly convert sunlight into electrical energy, play a vital role in this process; however, in order to ensure that photovoltaic panels can work efficiently and stably and maximize energy conversion efficiency, photovoltaic panels are usually subjected to precise electrical performance tests after production, which is not only related to the quality control of photovoltaic products, but also the basis for evaluating the performance of new technologies and new materials.

[0003] The electrical performance test of solar photovoltaic panels is a key link to ensure their efficient operation and long-term reliability. It involves a series of detection processes designed to evaluate the current, voltage, power output and efficiency of photovoltaic panels under different conditions. When conducting electrical performance tests on photovoltaic panels, shielding plates with different light transmittances are used to block the photovoltaic panels to simulate shading conditions from mild to severe, and then test the energy conversion efficiency of the photovoltaic panels after being blocked by the shielding plates. During operation, the photovoltaic panels are placed in a position where there is strong sunlight, and then the shielding plates are held by humans to block the photovoltaic panels, and the energy conversion efficiency of the photovoltaic panels is tested using a detector, and then the photovoltaic panels are tested by the detector. The photovoltaic panels are shielded in turn by switching shielding plates with different light transmittances, and the energy conversion efficiency of the photovoltaic panels is detected by the detector in turn, so as to achieve accurate electrical performance testing of the photovoltaic panels. However, when the above operations are being performed, most of the processes require manual operation, such as manually placing the photovoltaic panels in a location where there is strong sunlight, and manually wiring the photovoltaic panels and the detector, and then manually holding shielding plates with different light transmittances to shield the photovoltaic panels, which not only makes the operation cumbersome, but also has low efficiency. When conducting electrical performance testing on a large number of photovoltaic panels, it takes a lot of time and effort. Summary of the invention

[0004] In view of this, the present invention provides an electrical performance testing device for solar photovoltaic panels, which can solve the problem that when conducting electrical performance testing on photovoltaic panels by detecting the energy conversion efficiency after the photovoltaic panels are blocked, most of the process requires manual operation, which not only leads to cumbersome operation but also low efficiency, and is time-consuming and labor-intensive when conducting electrical performance testing on large quantities of photovoltaic panels.

[0005] The technical solution is: an electrical performance test device for solar photovoltaic panels, including a bottom plate, a roller conveyor, a solar simulator, a control console, a screw rod, a gear I, a transparent frame, a liquid storage tank, a water pump, an air pump, a pipeline, a partition, an electric push rod I, a movable plate, a filter, a rotating mechanism, a limit mechanism and a wiring mechanism. The roller conveyor is installed on the bottom plate, the roller conveyor is used to transport the photovoltaic panels, the solar simulator is installed on the bottom plate, the control console is installed on the roller conveyor, the roller conveyor is symmetrically provided with screw rods, the gear I is threadedly provided on the screw rod, and the transparent frame is provided with a sliding mechanism. Placed between the screw rods, gear I is rotatably connected to the transparent frame, the liquid storage tank is connected to the transparent frame, a water pump is arranged in the liquid storage tank, an air pump is installed on the liquid storage tank, a pipeline is connected between the water pump, the air pump and the transparent frame, a partition is slidably arranged in the transparent frame, an electric push rod I is installed on the liquid storage tank, a movable plate is slidably arranged in the liquid storage tank, the movable plate is connected to the telescopic rod of the electric push rod I, a filter is installed inside the liquid storage tank, a rotating mechanism is used to drive gear I to rotate, a limiting mechanism is used to block the photovoltaic panel transported on the roller conveyor, and a wiring mechanism is used to electrically connect the wiring box on the photovoltaic panel.

[0006] Preferably, the rotating mechanism includes a servo motor and a gear II. The servo motor is symmetrically arranged on the liquid storage tank. The gear II is connected to the output shaft of the servo motor, and the gear II is meshed with the gear I.

[0007] Preferably, the limiting mechanism includes an electric push rod III and a baffle I. The electric push rod III is symmetrically arranged on the roller conveyor. The baffle I is connected to the telescopic rod of the electric push rod III. The baffle I is used to block the photovoltaic panels transported on the roller conveyor.

[0008] Preferably, the wiring mechanism includes an electric push rod II, a rotating plate, a spring and a wiring head. The electric push rod II is symmetrically arranged on the roller conveyor. The rotating plate is rotatably arranged on the telescopic rod of the electric push rod II. The two ends of the spring are respectively connected to the telescopic rod and the rotating plate of the electric push rod II. The wiring head is connected to the rotating plate. The wiring head is used to dock with the wiring box on the photovoltaic panel.

[0009] Preferably, a stirring mechanism is also included, which includes a reduction motor and a stirring frame. The reduction motor is installed on the liquid storage tank, and the stirring frame is connected to the output shaft of the reduction motor. The stirring frame is located inside the liquid storage tank.

[0010] Preferably, a cleaning cylinder is also included, which is installed on the roller of the roller conveyor and is used to clean the photovoltaic panel.

[0011] Preferably, an adhesion mechanism is also included, which includes a fixed block, a sliding frame, a cylinder I, a sliding frame, a dust removal drum, a limit plate and a bolt. The fixed block is installed on the base plate, the sliding frame is slidably arranged on the fixed block, the cylinder I is installed in the fixed block, the telescopic rod of the cylinder I is connected to the sliding frame, the sliding frame is slidably installed on the sliding frame, the dust removal drum is arranged in the sliding frame, the limit plate is installed on the sliding frame, the limit plate is used to limit the dust removal drum in the sliding frame, and the bolt is threadedly installed between the limit plate and the sliding frame.

[0012] Preferably, a protective mechanism is also included, which includes a cylinder II, a closing frame, a closing plate, a torsion spring and a baffle II. Cylinder II is installed on the rotating plate, the closing frame is connected to the telescopic rod of cylinder II, a closing plate is symmetrically arranged on the closing frame, two ends of the torsion spring are respectively connected to the closing frame and the closing plate, and the baffle II is installed on the rotating plate.

[0013] The beneficial effects of the present invention are: 1. The present invention cooperates with the limiting mechanism and the wiring mechanism to automatically transport the photovoltaic panel to the specified position using a roller conveyor, and automatically connects and energizes the photovoltaic panel, and then moves it between the photovoltaic panel and the solar simulator through a transparent frame, and then by adding mixed liquids with different solubilities into the transparent frame in turn, the mixed liquids with different solubilities can form similar "baffles" with different light transmittances with the transparent frame in turn. In this way, the energy conversion efficiency of the photovoltaic panel under different shielding conditions can be automatically tested, thereby facilitating the electrical performance testing of batches of photovoltaic panels. It is not only simple to operate, but also time-saving and labor-saving, and highly efficient.

[0014] 2. The present invention provides a stirring mechanism, which can drive the stirring frame to rotate through a reduction motor, so that the stirring frame stirs the mixed liquid in the liquid storage tank, thereby making the titanium dioxide suspension evenly dispersed in the mixed liquid to prevent the titanium dioxide suspension from precipitating.

[0015] 3. The present invention provides a cleaning cylinder and an adhesion mechanism, so that the photovoltaic panel can be automatically wiped when the photovoltaic panel is transported by the roller conveyor, thereby ensuring the cleanliness of the bottom surface of the photovoltaic panel to prevent stains on the bottom surface of the photovoltaic panel from affecting subsequent electrical performance tests, thereby improving the accuracy of the electrical performance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the roller conveyor, solar simulator and screw rod of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the gear I, the transparent frame and the liquid storage tank of the present invention.

[0019] Figure 4 It is a cross-sectional view of the transparent frame and the liquid storage tank of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the water pump, air pump and pipeline of the present invention.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the limiting mechanism and the wiring mechanism of the present invention.

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the wiring mechanism of the present invention.

[0023] Figure 8 It is a structural separation diagram of the wiring mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the stirring mechanism of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the bottom plate, roller conveyor and fixed block of the present invention.

[0026] Fig.11 For the present invention Fig. 9 Enlarged view of point A in .

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the cleaning cylinder and the adhesion mechanism of the present invention.

[0028] Fig.13 For the present invention Fig.11 Enlarged view of point B in .

[0029] Fig.14 It is a three-dimensional structural schematic diagram of the protection mechanism of the present invention.

[0030] Fig.15 It is a schematic diagram of the three-dimensional structure of the closing frame, the closing plate and the torsion spring of the present invention.

[0031] Description of the accompanying drawings: 1-base plate, 101-photovoltaic panel, 102-junction box, 2-roller conveyor, 3-solar simulator, 4-control console, 5-screw, 6-gear I, 7-transparent frame, 8-liquid storage tank, 9-water pump, 91-air pump, 10-pipeline, 1001-main pipe, 1002-branch pipe I, 1003-branch pipe II, 1004-solenoid valve I, 1005-solenoid valve II, 1006-solenoid valve III, 11-partition, 12-electric push rod I, 13-movable plate, 1 4-filter, 15-servo motor, 16-gear II, 17-electric push rod III, 18-baffle I, 19-electric push rod II, 20-turn plate, 21-shrapnel, 22-connector, 23-reduction motor, 24-stirring frame, 25-cleaning cylinder, 26-fixed block, 27-sliding frame, 28-cylinder I, 29-sliding frame, 30-dust removal reel, 31-limiting plate, 32-bolt, 33-cylinder II, 34-closing frame, 35-closing plate, 36-torsion spring, 37-baffle II. DETAILED DESCRIPTION

[0032] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0033] Embodiment: An electrical performance testing device for solar photovoltaic panels, see Figure 1-Figure 8As shown, it includes a base plate 1; it also includes a roller conveyor 2, a solar simulator 3, a control console 4, a screw 5, a gear Ⅰ6, a transparent frame 7, a liquid storage tank 8, a water pump 9, an air pump 91, a pipeline 10, a partition 11, an electric push rod Ⅰ12, a movable plate 13, a filter 14, a rotating mechanism, a limiting mechanism and a wiring mechanism; the roller conveyor 2 is installed on the top of the base plate 1, and the roller conveyor 2 is used to transport the photovoltaic panel 101; the solar simulator 3 is installed on the right side of the top of the base plate 1, and the solar simulator 3 is used to simulate sunlight to irradiate the photovoltaic panel 101; the control console 4 is installed on the front right side of the roller conveyor 2, and the roller conveyor 2 and the solar simulator 3 are electrically connected to the control console 4, and the control console 4 It can be used to test the energy conversion efficiency of the photovoltaic panel 101; two screw rods 5 are symmetrically arranged on the roller conveyor 2; gears Ⅰ6 are threadedly arranged on the screw rods 5; a transparent frame 7 is slidably arranged between the two screw rods 5, and the interior of the transparent frame 7 is divided into three spaces, and the two gears Ⅰ6 are rotatably connected to the left side of the transparent frame 7; a liquid storage tank 8 is detachably installed on the left side of the transparent frame 7, and the interior of the liquid storage tank 8 is divided into two spaces, front and back. The front and back sides of the top and bottom of the liquid storage tank 8 are connected with through pipes, and the through pipes on the front and back sides are respectively connected to the front and back two spaces in the liquid storage tank 8; two water pumps 9 are symmetrically arranged inside the liquid storage tank 8, and the two water pumps 9 are respectively in the two spaces of the liquid storage tank 8, and the water pumps 9 are connected to the control console 4 Electrical connection; two air pumps 91 are symmetrically arranged on the front and rear sides of the liquid storage tank 8, and the air pump 91 is electrically connected to the console 4; the pipeline 10 is composed of a main pipe 1001, a branch pipe Ⅰ1002, a branch pipe Ⅱ1003, a solenoid valve Ⅰ1004, a solenoid valve Ⅱ1005 and a solenoid valve Ⅲ1006, the branch pipe Ⅰ1002 and the branch pipe Ⅱ1003 are both connected to the main pipe 1001, the branch pipe Ⅰ1002 is connected to the water outlet of the water pump 9, the branch pipe Ⅱ1003 is connected to the air outlet of the air pump 91, the main pipe 1001 is connected to three solenoid valves Ⅰ1004, the three solenoid valves Ⅰ1004 are respectively connected to the three spaces in the transparent frame 7, the branch pipe Ⅰ1002 is installed with a solenoid valve Ⅱ1005, the branch pipe Ⅱ100 3 is provided with a solenoid valve III 1006, and the solenoid valves I 1004, II 1005 and III 1006 are all electrically connected to the console 4; three partitions 11 are slidably arranged inside the transparent frame 7, and the three partitions 11 are respectively located in three spaces of the transparent frame 7; four electric push rods I 12 are arranged at intervals at the bottom of the liquid storage tank 8, and the electric push rods I 12 are electrically connected to the console 4; two movable plates 13 are slidably arranged inside the liquid storage tank 8, and the two movable plates 13 are respectively located in two spaces of the liquid storage tank 8, wherein the telescopic rods of the two front electric push rods I 12 are both connected to the bottom of the front movable plate 13, and the telescopic rods of the two rear electric push rods I 12 are both connected to the bottom of the rear movable plate 13;Two filter screens 14 are arranged inside the liquid storage tank 8, and the two filter screens 14 are respectively located in two spaces of the liquid storage tank 8. The filter screen 14 is used to filter the titanium dioxide suspension in the water. The bottom of the filter screen 14 contacts the top of the movable plate 13, and the water pump 9 is located above the filter screen 14; the rotating mechanism is used to drive the gear Ⅰ6 to rotate, so that the gear Ⅰ6 moves on the screw rod 5, thereby driving the transparent frame 7 to move; the limiting mechanism is used to block the photovoltaic panel 101 transported on the roller conveyor 2, so that the photovoltaic panel 101 transported on the roller conveyor 2 stays at a specified position; the wiring mechanism is used to electrically connect the wiring box 102 on the photovoltaic panel 101, so as to make the photovoltaic panel 101 work. ;

[0034] See also Figure 4 As shown, the rotating mechanism includes a servo motor 15 and a gear II 16; the two servo motors 15 are symmetrically arranged on the front and rear sides of the liquid storage tank 8, and the servo motor 15 is electrically connected to the control console 4; the gear II 16 is connected to the output shaft of the servo motor 15, and the gear II 16 is meshed with the gear I 6. The servo motor 15 drives the gear II 16 to rotate, so that the gear II 16 can drive the gear I 6 to rotate.

[0035] See also Figure 6 As shown, the limiting mechanism includes an electric push rod III17 and a baffle I18; the two electric push rods III17 are symmetrically arranged on the right side of the front and rear sides of the roller conveyor 2, and the electric push rods III17 are electrically connected to the control console 4; the baffle I18 is connected to the telescopic rod of the electric push rod III17, and the baffle I18 is used to block the photovoltaic panel 101 transported on the roller conveyor 2 so that the photovoltaic panel 101 transported on the roller conveyor 2 stays at the specified position.

[0036] See also Figure 6-Figure 8 As shown, the wiring mechanism includes an electric push rod Ⅱ19, a rotating plate 20, a spring 21 and a wiring head 22; the two electric push rods Ⅱ19 are symmetrically arranged on the upper right side of the roller conveyor 2, and the electric push rods Ⅱ19 are electrically connected to the control console 4; the rotating plate 20 is rotatably arranged on the telescopic rod of the electric push rod Ⅱ19; the two ends of the spring 21 are respectively connected to the telescopic rod of the electric push rod Ⅱ19 and the rotating plate 20; the two wiring heads 22 are respectively connected to the lower part of the side of the two rotating plates 20 close to each other, the wiring heads 22 are electrically connected to the control console 4, and the wiring heads 22 are used to connect with the wiring box 102 on the photovoltaic panel 101.

[0037] When in use, both branch pipe I 1002 and branch pipe II 1003 are disconnected from main pipe 1001, then the liquid storage tank 8 is removed from transparent frame 7, and then clean water (clean water will not block light from passing through) and titanium dioxide suspension (titanium dioxide suspension will block light from passing through) are mixed in a certain proportion to form a mixed liquid (the mixed liquid has the ability to block light, and the ability to block light becomes stronger as the solubility of titanium dioxide suspension increases), and then the mixed liquid is added into the space in the liquid storage tank 8 from the upper through pipe, so that both spaces in the liquid storage tank 8 are filled with an appropriate amount of mixed liquid, and then the liquid storage tank 8 is installed back on transparent frame 7, and both branch pipe I 1002 and branch pipe II 1003 are reconnected to main pipe 1001;

[0038] Then, the photovoltaic panel 101 is placed on the roller conveyor 2, and the control console 4 is used to control the roller conveyor 2 to convey the photovoltaic panel 101 to the right. When the edge of the photovoltaic panel 101 moves to the right to contact the rotating plate 20 (generally, the edge of the photovoltaic panel 101 will be higher than the middle area), the edge of the photovoltaic panel 101 will squeeze the rotating plate 20 to rotate, and the spring piece 21 will deform. When the edge of the photovoltaic panel 101 moves to the right to separate from the rotating plate 20, the spring piece 21 returns to its original state, and the spring piece 21 drives the rotating plate 20 to reverse and reset. When the photovoltaic panel 101 moves to the right to contact the baffle Ⅰ18, the baffle Ⅰ18 will block the photovoltaic panel 101, so that the photovoltaic panel 101 Stay right above the solar simulator 3, then control the roller conveyor 2 to stop conveying the photovoltaic panel 101 through the console 4, and then control the electric push rod II 19 through the console 4 to drive the rotating plate 20, the spring 21 and the terminal head 22 to move to the side close to the junction box 102 on the photovoltaic panel 101, so that the terminal head 22 is connected to the junction box 102, thereby energizing the photovoltaic panel 101 to make the photovoltaic panel 101 work, and then control the solar simulator 3 to start through the console 4, so that the solar simulator 3 simulates the strong sunlight shining on the photovoltaic panel 101, so that the working state of the photovoltaic panel 101 under normal light conditions can be simulated;

[0039] Then, the servo motor 15 drives the gear II 16 to rotate, so that the gear II 16 drives the gear I 6 to rotate, thereby moving the gear I 6, the transparent frame 7 and the liquid storage tank 8 to the right, until the transparent frame 7 moves between the photovoltaic panel 101 and the solar simulator 3, and then the next step is performed according to the needs; if the entire transparent frame 7 needs to block the photovoltaic panel 101, no additional operation is required, so that the pipeline 10 can be connected with the three spaces in the transparent frame 7. If two-thirds of the entire transparent frame 7 needs to block the photovoltaic panel 101, the corresponding solenoid valve I 1004 on the main pipe 1001 is controlled by the console 4 to be closed, so that the pipeline 10 can only be connected with the two spaces in the transparent frame 7. If one-third of the entire transparent frame 7 needs to block the photovoltaic panel 101, the corresponding solenoid valve I 1004 on the main pipe 1001 is controlled by the console 4 to be closed. The path 10 can only be connected to a space in the transparent frame 7; after the above operation is completed, the solenoid valve III 1006 is controlled to be closed through the console 4, and then the water pump 9 on the rear side is controlled by the console 4 to pump the mixed liquid in the rear space of the liquid storage tank 8 into the transparent frame 7 using the rear pipeline 10, so that the mixed liquid enters the transparent frame 7. During this period, when the mixed liquid contacts the partition 11, the mixed liquid will squeeze the partition 11 to move forward, and then the mixed liquid and the transparent frame 7 form a similar "baffle" to block the light irradiated by the solar simulator 3, thereby simulating the situation that the light of the photovoltaic panel 101 is blocked, and then the console 4 is used to test the energy conversion efficiency of the photovoltaic panel 101 after being blocked. When the energy conversion efficiency of the photovoltaic panel 101 is tested; the solubility of the titanium dioxide suspension in the mixed liquid above the filter screen 14 can be adjusted in the front space in the liquid storage tank 8 at the same time, and the operation is as follows:

[0040] The control console 4 controls the two electric push rods Ⅰ 12 on the front side to drive the movable plate 13 on the front side to move downward by a specified distance, so that the mixed liquid in the front space of the liquid storage tank 8 flows downward through the filter screen 14. Since the filter screen 14 blocks the titanium dioxide suspension in the mixed liquid, the liquid below the filter screen 14 is clean water, while the liquid above the filter screen 14 is a mixed liquid with a higher solubility of the titanium dioxide suspension (since part of the clean water in the mixed liquid is below the filter screen 14, the solubility of the titanium dioxide suspension in the mixed liquid above the filter screen 14 is higher). In this way, the solubility of the titanium dioxide suspension in the mixed liquid above the filter screen 14 can be adjusted;

[0041] Afterwards, when the energy conversion efficiency of the photovoltaic panel 101 is tested, the control console 4 controls the front water pump 9 to draw the mixed liquid in the front space of the liquid storage tank 8 (the mixed liquid with a higher solubility of the titanium dioxide suspension) into the transparent frame 7 using the front pipe 10, so that the mixed liquid with a higher solubility of the titanium dioxide suspension enters the transparent frame 7. In this way, the mixed liquid with a higher solubility of the titanium dioxide suspension and the transparent frame 7 can form a similar "blind" effect to block the light irradiated by the solar simulator 3. The "blind" formed this time has a lower light transmittance because the solubility of the titanium dioxide suspension is higher. , so as to simulate the shading situation of the photovoltaic panel 101 from slight to severe. At the same time, when the mixed liquid with a higher solubility of the titanium dioxide suspension contacts the partition 11 in the transparent frame 7, the mixed liquid with a higher solubility of the titanium dioxide suspension will squeeze the partition 11 to move backward and reset, so that the partition 11 squeezes the mixed liquid in the transparent frame 7 into the rear pipe 10, so that the mixed liquid flows back to the rear space of the liquid storage tank 8 through the rear pipe 10 and the water pump 9, and then the energy conversion efficiency of the photovoltaic panel 101 after being blocked can be tested again by the console 4; and at the same time, the solubility of the titanium dioxide suspension in the mixed liquid above the filter 14 can be adjusted in the rear space of the liquid storage tank 8, and the operation is as follows:

[0042] The control console 4 controls the two electric push rods Ⅰ12 at the rear side to drive the movable plate 13 at the rear side to move downward by a specified distance, so that the mixed liquid in the rear space of the liquid storage tank 8 flows downward through the filter screen 14. Since the filter screen 14 blocks the titanium dioxide suspension in the mixed liquid, the liquid below the filter screen 14 is clear water, while the liquid above the filter screen 14 is a mixed liquid with a higher solubility of the titanium dioxide suspension. In this way, the solubility of the titanium dioxide suspension in the mixed liquid above the filter screen 14 can be adjusted.

[0043] Then, the above operation is repeated to sequentially add the mixed liquids with different solubility of titanium dioxide suspension into the transparent frame 7, so that the mixed liquids with different solubility of titanium dioxide suspension form "shielding plates" with different light transmittance with the transparent frame 7 in turn. In this way, the control console 4 can be used to test the energy conversion efficiency of the photovoltaic panel 101 under different shielding conditions, so as to perform an electrical performance test on the photovoltaic panel 101. After the photovoltaic panel 101 completes the electrical performance test, the control console 4 controls the electric push rod Ⅰ12 to drive the movable plate 13 to move upward and reset, and then opens the solenoid valve Ⅲ1006, and then performs the next step according to the position of the partition 11; if the partition 11 is located on the front side of the transparent frame 7, the solenoid valve Ⅱ1005 on the front side is controlled by the control console 4 to be closed. , and then the control console 4 controls the air pump 91 on the front side to draw air into the front pipeline 10 and the transparent frame 7, so that the air pushes the partition 11 on the front side of the transparent frame 7 backward, so that the partition 11 squeezes the mixed liquid in the transparent frame 7 into the pipeline 10 on the rear side, and the mixed liquid flows back to the space on the rear side of the liquid storage tank 8 through the pipeline 10 and the water pump 9 on the rear side, and then the control console 4 controls the electromagnetic valve II 1005 on the front side to open; if the partition 11 is located at the rear side of the transparent frame 7, the control console 4 controls the electromagnetic valve II 1005 on the rear side to close, and then the control console 4 controls the air pump 91 on the rear side to draw air into the pipeline 10 and the transparent frame 7 on the rear side, so that the air pushes the partition 11 on the rear side of the transparent frame 7 forward, so that the partition 11 squeezes the mixed liquid in the transparent frame 7 into the front pipe 10, and allows the mixed liquid to flow back to the front space in the liquid storage tank 8 through the front pipe 10 and the water pump 9, and then controls the electromagnetic valve II 1005 on the rear side to open through the console 4; then controls the electromagnetic valve I 1004 to open completely through the console 4, and then drives the gear II 16 to reverse and reset through the servo motor 15, so that the gear II 16 drives the gear I 6 to reverse and reset, so that the gear I 6, the transparent frame 7 and the liquid storage tank 8 move to the left and reset, and then the transparent frame 7 moves away from the photovoltaic panel 101 and the solar simulator 3, and then controls the electric push rod II 19 through the console 4 to drive the rotating plate 20, the spring 21 and the wiring head 22 to connect away from the photovoltaic panel 101 One side of the box 102 is moved and reset, so that the terminal head 22 leaves the terminal box 102, thereby powering off the photovoltaic panel 101 to stop the photovoltaic panel 101 from working, and then the electric push rod III17 drives the baffle I18 to move away from each other, so that the baffle I18 is separated from the photovoltaic panel 101, so that the baffle I18 no longer blocks the photovoltaic panel 101, and then the control console 4 controls the roller conveyor 2 to convey the photovoltaic panel 101 to the right for unloading. After the photovoltaic panel 101 is unloaded, the electric push rod III17 drives the baffle I18 to move to the side close to each other and reset, and then the photovoltaic panel 101 is placed on the roller conveyor 2 again, and the above operation is repeated, and the electrical performance of the batch of photovoltaic panels 101 can be tested.

[0044] See also Fig. 9 As shown, a stirring mechanism is also included, which includes a reduction motor 23 and a stirring frame 24; the two reduction motors 23 are respectively installed on the front and rear sides of the top of the liquid storage tank 8, and the reduction motors 23 are electrically connected to the control console 4; the two stirring frames 24 are respectively connected to the output shafts of the two reduction motors 23, and the two stirring frames 24 are respectively located in two spaces in the liquid storage tank 8.

[0045] When in use, the control console 4 can control the reduction motor 23 to drive the stirring frame 24 to rotate, so that the stirring frame 24 stirs the mixed liquid in the liquid storage tank 8, so that the titanium dioxide suspension is evenly dispersed in the mixed liquid.

[0046] See also Fig.10 and Fig.11 As shown, a cleaning cylinder 25 is also included; the cleaning cylinders 25 are sleeved on two of the rollers of the roller conveyor 2 , and the cleaning cylinders 25 are used to clean the photovoltaic panels 101 .

[0047] See also Figure 10-13 As shown, it also includes an adhesion mechanism, which includes a fixed block 26, a sliding frame 27, a cylinder I 28, a sliding frame 29, a dust removal reel 30, a limit plate 31 and a bolt 32; the two fixed blocks 26 are installed on the left side of the top of the bottom plate 1; the sliding frame 27 is slidably arranged on the fixed block 26; the cylinder I 28 is installed in the fixed block 26, the telescopic rod of the cylinder I 28 is connected to the sliding frame 27, and the cylinder I 28 is electrically connected to the console 4; the sliding frame 29 is slidably installed on the sliding frame On the movable frame 27, the dust removal drum 30 is composed of a rotating shaft and a dust removal paper roll. The dust removal paper roll is detachably installed on the rotating shaft. The rotating shaft is placed in the sliding frame 29. The dust removal paper roll is in contact with the cleaning cylinder 25. The dust removal paper roll is used to absorb the dust on the outer wall of the cleaning cylinder 25; limit plates 31 are rotatably provided on both the front and rear sides of the top of the sliding frame 29, and the limit plates 31 are used to limit the dust removal drum 30 in the sliding frame 29; the bolt 32 is threadedly installed between the limit plate 31 and the sliding frame 29.

[0048] During use, when the roller conveyor 2 is conveying the photovoltaic panel 101 to the right, the photovoltaic panel 101 will contact the cleaning cylinder 25 on the roller conveyor 2, and the cleaning cylinder 25 will wipe the bottom surface of the photovoltaic panel 101, thereby ensuring the cleanliness of the bottom surface of the photovoltaic panel 101, so as to prevent the stains on the bottom surface of the photovoltaic panel 101 from affecting the subsequent electrical performance test, and the roller of the roller conveyor 2 will drive the cleaning cylinder 25 to rotate, so that the cleaning cylinder 25 drives the dust removal reel 30 to rotate, so that the dust removal paper roll on the dust removal reel 30 will adhere to the stains wiped off the cleaning cylinder 25, thereby cleaning the stains on the cleaning cylinder 25; when the electrical performance test device is no longer needed, the cylinder I2 can be controlled by the console 4 8 drives the sliding frame 27, the sliding frame 29 and the dust removal reel 30 to move downward, so that the dust removal paper roll of the dust removal reel 30 is separated from the cleaning cylinder 25, and then the sliding frame 29 is pulled forward to be withdrawn, and then the bolt 32 is turned and twisted down, and then the limit plate 31 is pulled to rotate so that the limit plate 31 releases the limit on the dust removal reel 30, and then the dust removal reel 30 is taken out of the sliding frame 29, and the paper roll on the outermost layer of the dust removal paper roll is taken off, and then the dust removal reel 30 is put back into the sliding frame 29, and then the sliding frame 29 is pushed back to its original position, and then the control console 4 controls the cylinder I 28 to drive the sliding frame 27, the sliding frame 29 and the dust removal reel 30 to move upward and reset, so that the dust removal paper roll of the dust removal reel 30 contacts the cleaning cylinder 25.

[0049] See also Fig.14 and Fig.15 As shown, it also includes a protection mechanism, which includes a cylinder II 33, a closing frame 34, a closing plate 35, a torsion spring 36 and a baffle II 37; the two cylinders II 33 are respectively installed on the upper part of the side where the two rotating plates 20 are close to each other, and the cylinder II 33 is electrically connected to the control console 4; the closing frame 34 is connected to the telescopic rod of the cylinder II 33, and the closing frame 34 is located directly above the terminal head 22; a closing plate 35 is symmetrically rotated at the bottom of the closing frame 34; the two ends of the torsion spring 36 are respectively connected to the closing frame 34 and the closing plate 35; the two baffles II 37 are respectively installed on the lower part of the side where the two rotating plates 20 are close to each other.

[0050] When the electrical performance test device is no longer needed, the cylinder II 33 can be controlled by the console 4 to drive the closing frame 34 and the closing plate 35 to move downward, so that the closing frame 34 contacts the baffle II 37. When the closing plate 35 contacts the terminal head 22, the terminal head 22 squeezes the closing plate 35 to rotate and open, and the torsion spring 36 is deformed. Then the terminal head 22 gradually enters the closing frame 34. When the closing plate 35 is separated from the terminal head 22, the torsion spring 36 returns to its original state, and the torsion spring 36 drives the closing plate 35 to reverse and close, so that the closing frame 34, the closing plate 35 and the baffle II 37 close the terminal head 22, thereby The electrical performance test device 22 is protected and the service life of the electrical connector 22 is prolonged. When the electrical performance test device is needed again, the cylinder II 33 is controlled by the control console 4 to drive the closing frame 34 and the closing plate 35 to move upward and reset, so that the closing frame 34 is separated from the baffle II 37. When the closing plate 35 contacts the electrical connector 22, the electrical connector 22 squeezes the closing plate 35 to reverse and open, and the torsion spring 36 is deformed. Then, the electrical connector 22 gradually leaves the closing frame 34. When the closing plate 35 is separated from the electrical connector 22, the torsion spring 36 returns to its original state, and the torsion spring 36 drives the closing plate 35 to rotate and close, and then the electrical performance test device can be used again.

[0051] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electrical performance testing device for a solar photovoltaic panel, comprising a base plate (1), characterized in that: The invention also comprises a roller conveyor (2), a solar simulator (3), a control console (4), a screw (5), a gear I (6), a transparent frame (7), a liquid storage tank (8), a water pump (9), an air pump (91), a pipeline (10), a partition (11), an electric push rod I (12), a movable plate (13), a filter (14), a rotating mechanism, a limiting mechanism and a wiring mechanism. The roller conveyor (2) is mounted on the bottom plate (1). The roller conveyor (2) is used to transport the photovoltaic panel (101). The solar simulator (3) is mounted on the bottom plate (1). The control console (4) is mounted on the roller conveyor (2). The roller conveyor (2) is symmetrically provided with screws (5). The gear I (6) is threadedly arranged on the screws (5). The transparent frame (7) is slidably arranged between the screws (5). The gear I (6) and the transparent frame ( 7) is rotatably connected, the liquid storage tank (8) is connected to the transparent frame (7), a water pump (9) is arranged in the liquid storage tank (8), an air pump (91) is installed on the liquid storage tank (8), a pipeline (10) is connected between the water pump (9), the air pump (91) and the transparent frame (7), a partition (11) is slidably arranged in the transparent frame (7), an electric push rod I (12) is installed on the liquid storage tank (8), a movable plate (13) is slidably arranged in the liquid storage tank (8), the movable plate (13) is connected to the telescopic rod of the electric push rod I (12), a filter screen (14) is installed inside the liquid storage tank (8), a rotating mechanism is used to drive the gear I (6) to rotate, a limiting mechanism is used to block the photovoltaic panel (101) transported on the roller conveyor (2), and a wiring mechanism is used to electrically connect the wiring box (102) on the photovoltaic panel (101).

2. The electrical performance testing device for solar photovoltaic panels according to claim 1, characterized in that: The rotating mechanism comprises a servo motor (15) and a gear II (16). The servo motor (15) is symmetrically arranged on the liquid storage tank (8). The gear II (16) is connected to the output shaft of the servo motor (15). The gear II (16) is meshed with the gear I (6).

3. The electrical performance testing device for solar photovoltaic panels according to claim 2, characterized in that: The limiting mechanism comprises an electric push rod III (17) and a baffle I (18). The electric push rod III (17) is symmetrically arranged on the roller conveyor (2). The baffle I (18) is connected to the telescopic rod of the electric push rod III (17). The baffle I (18) is used to block the photovoltaic panel (101) transported on the roller conveyor (2).

4. The electrical performance testing device for solar photovoltaic panels according to claim 3, characterized in that: The wiring mechanism comprises an electric push rod II (19), a rotating plate (20), a spring piece (21) and a wiring head (22). The electric push rod II (19) is symmetrically arranged on the roller conveyor (2). The rotating plate (20) is rotatably arranged on the telescopic rod of the electric push rod II (19). Two ends of the spring piece (21) are respectively connected to the telescopic rod of the electric push rod II (19) and the rotating plate (20). The wiring head (22) is connected to the rotating plate (20). The wiring head (22) is used to connect with the wiring box (102) on the photovoltaic panel (101).

5. The electrical performance testing device for solar photovoltaic panels according to claim 4, characterized in that: The invention also comprises a stirring mechanism, which comprises a reduction motor (23) and a stirring frame (24), wherein the reduction motor (23) is mounted on the liquid storage tank (8), the stirring frame (24) is connected to the output shaft of the reduction motor (23), and the stirring frame (24) is located inside the liquid storage tank (8).

6. The electrical performance testing device for solar photovoltaic panels according to claim 5, characterized in that: It also includes a cleaning cylinder (25), which is installed on the roller of the roller conveyor (2), and is used to clean the photovoltaic panel (101).

7. The electrical performance testing device for solar photovoltaic panels according to claim 6, characterized in that: The invention also comprises an adhesion mechanism, which comprises a fixed block (26), a sliding frame (27), a cylinder I (28), a sliding frame (29), a dust removal reel (30), a limiting plate (31) and a bolt (32). The fixed block (26) is mounted on the bottom plate (1), the sliding frame (27) is slidably arranged on the fixed block (26), the cylinder I (28) is mounted in the fixed block (26), the telescopic rod of the cylinder I (28) is connected to the sliding frame (27), the sliding frame (29) is slidably mounted on the sliding frame (27), the dust removal reel (30) is arranged in the sliding frame (29), the limiting plate (31) is mounted on the sliding frame (29), the limiting plate (31) is used to limit the dust removal reel (30) in the sliding frame (29), and the bolt (32) is threadedly mounted between the limiting plate (31) and the sliding frame (29).

8. The electrical performance testing device for solar photovoltaic panels according to claim 7, characterized in that: The invention also comprises a protection mechanism, which comprises a cylinder II (33), a closing frame (34), a closing plate (35), a torsion spring (36) and a baffle II (37). The cylinder II (33) is mounted on the rotating plate (20). The closing frame (34) is connected to the telescopic rod of the cylinder II (33). The closing plate (35) is symmetrically rotatably arranged on the closing frame (34). Two ends of the torsion spring (36) are respectively connected to the closing frame (34) and the closing plate (35). The baffle II (37) is mounted on the rotating plate (20).

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