A sunlight environment simulation device for lifetime detection of a photovoltaic module

Abstract

The present application relates to photovoltaic module detection technical field, specifically, it is a kind of for photovoltaic module carries out life detection sunshine environment simulation equipment.It includes equipment ontology, equipment ontology includes side plate group, end plate group and vertical plate group, and it is sealed fixed connection between side plate group, end plate group and vertical plate group, and it is formed in one simulation cavity between side plate group, end plate group and vertical plate group.The present application is simulated when lamp is opened to test material and carries out sunshine environment simulation test, and the light irradiated on the side end surface of placing mechanism can be reflected to the reflected light plate and be reflected back, and the utilization of excess illumination is realized, so, in the case of not increasing power, illumination effect is improved, at the same time, according to the width of test material, the spacing between reflected light plate and placing mechanism is adjusted, so that the light distance reflected by test material of different sizes is equivalent, and then the reflected intensity is the same, effectively ensure the accuracy of test data.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic module detection, in particular to a sunlight environment simulation device for life detection of photovoltaic modules. BACKGROUND

[0002] Photovoltaic panels are mainly made of silicon materials, including single crystal silicon and polycrystalline silicon, and single crystal silicon has higher photoelectric conversion efficiency. Different materials have different performance and life in actual use, so it is necessary to use a sunlight environment simulation device to detect the life.

[0003] In actual application, photovoltaic panels convert solar light into electrical energy output, and when detecting, energizing the photovoltaic panels can simulate their electrical performance in actual working state, and more comprehensively detect the stability of the material when current passes through. The photovoltaic panels after energization are placed on the surface of the dark glass in the device, and three ultraviolet lamps are arranged at the middle position of the top of the inner cavity of the device. In order to better detect the photovoltaic panels, the photovoltaic panels are laid at the lower end of the ultraviolet lamps, and the sunlight environment is simulated by the irradiation of the ultraviolet lamps.

[0004] However, since the photovoltaic panels only cover the area directly below the ultraviolet lamps, the edges of the glass are in a non-covered state, and when the ultraviolet lamps are irradiated, the light irradiated on the edge glass cannot be effectively utilized, resulting in waste, which not only reduces the energy utilization efficiency, but also limits the improvement of the overall performance of the device to some extent. SUMMARY

[0005] The purpose of the present application is to provide a sunlight environment simulation device for life detection of photovoltaic modules to improve the overall performance of the device and the energy utilization efficiency, and solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides a sunlight environment simulation device for life detection of photovoltaic modules, which comprises a device body, the device body comprises a side plate group, an end plate group and a vertical plate group, the side plate group, the end plate group and the vertical plate group are sealingly and fixedly connected, the side plate group, the end plate group and the vertical plate group form an simulation cavity, an operation cabinet is installed on the side wall of the device body, three simulation lamps are arranged on the top of the simulation cavity, an air inlet pipe is arranged on the inner wall of the simulation cavity, an air outlet pipe is arranged on the lower end of the inner wall of the simulation cavity, and a fan is installed on the top of the end plate group.

[0007] An placing mechanism for storing test materials is movably arranged in the simulation cavity, and the placing mechanism divides the simulation cavity into an upper cavity and a lower cavity.

[0008] The side wall of the simulation cavity is provided with a light collecting mechanism, the light collecting mechanism comprises two adjusting grooves, the inside of the two adjusting grooves is movably connected with a reflecting light plate, the reflecting light plate is used for reflecting and reusing the light rays irradiated at the edge of the placing mechanism, the placing mechanism and the two reflecting light plates form a communication channel, when the simulation test is carried out on the test material with different width sizes, the two reflecting light plates can be slid in the inside of the two adjusting grooves respectively, the reflecting path of the light rays is adjusted simultaneously, and meanwhile, the sliding of the reflecting light plates is also used for adjusting the inner diameter of the communication channel.

[0009] As a further improvement of the technical solution, the side plate group comprises a first side plate and a second side plate, the end plate group comprises a bottom plate and a top plate, the vertical plate group comprises a first vertical plate and a second vertical plate, the middle part of the first vertical plate is provided with a storage hole, and the inside of the storage hole is sealingly installed with a side door.

[0010] The placing mechanism comprises a support frame placed on the top of the bottom plate, the top of the support frame is fixedly installed with a support plate, and the inside of the support plate is installed with a glass plate used for placing the test material.

[0011] The first side plate is composed of a turnover plate and a fixed plate, the fixed plate is located at the upper end of the turnover plate, the fixed plate is fixedly connected with the top plate, the turnover plate is rotatably connected with the bottom plate through a hinge, a fixed block is fixedly installed on the side surface of the turnover plate close to the simulation cavity, a welding box is installed at the bottom of the inner cavity of the simulation cavity, a gas cylinder is fixedly connected in the inside of the welding box, and the piston rod of the gas cylinder is rotatably connected with the inside of the fixed block.

[0012] As a further improvement of the technical solution, the light collecting mechanism further comprises a push cavity located between the adjusting groove and the reflecting light plate, the two adjusting grooves are respectively formed in the surface of the first side plate and the second side plate, the reflecting light plate comprises an extension plate, a rotating light plate and a side light plate, the extension plate is fixedly installed at the top of the inner cavity of the adjusting groove, and the extension plate is located at the side close to the opening of the adjusting groove, the side light plate is vertically slid in the inside of the adjusting groove, and the two ends of the rotating light plate are rotatably provided with rotating blocks, one rotating block is fixedly connected with the end surface of the extension plate close to the inner cavity of the adjusting groove, and the other rotating block is slidably arranged on the outer wall of the side light plate, the surfaces of the rotating light plate and the side light plate are paved with a reflecting material, the inner wall of the adjusting groove is fixedly installed with an electric push rod, the movable end of the electric push rod is connected with the side of the side light plate away from the rotating light plate, the end of the fixed plate close to the turnover plate is fixedly connected with a sealing gasket, the sealing gasket is made of elastic material, the top of the bottom plate is fixedly installed with a track, the lower end side wall of the support frame is fixedly installed with a side protruding block, and the surface of the side protruding block is attached to the inner wall of the track.

[0013] As a further improvement to this technical solution, a support limiting plate is fitted to one end of the track near the second side plate. The support limiting plate is made of metal and is fixedly installed on the top of the base plate. A magnetic strip is laid on one end of the support frame near the support limiting plate.

[0014] The side light plate has a groove at one end near the rotating light plate, and a slider is fixedly installed on the surface of the rotating block at one end near the side light plate. The surface of the slider is in contact with the inner wall of the groove.

[0015] A horizontal block is fixedly connected to the bottom of the inner cavity of the adjustment groove. A horizontal groove that fits the surface of the horizontal block is opened at the bottom end of the side light plate. A telescopic plate is fixedly installed on the upper surface of the side light plate, and the telescopic plate is located at one end close to the push cavity. The other side of the telescopic plate is fixedly installed on the inner wall surface of the adjustment groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] In this solar environment simulation device for life testing of photovoltaic modules, the placement mechanism divides the simulation chamber into an upper chamber and a lower chamber. The upper chamber is used to place the material to be tested, while the lower chamber is used to place the connecting wires of the test material. When the simulation lamp is turned on to conduct a solar environment simulation test on the test material, the light shining on the side surface of the placement mechanism can be reflected to the reflector and then reflected back, realizing the reuse of excess light. In this way, the lighting effect is improved without increasing the power. At the same time, the heat generated by the placement mechanism absorbing light is reduced. When the heat absorbed by the placement mechanism itself decreases, the heat transferred to the lower chamber also decreases accordingly, thereby effectively reducing the temperature in the lower chamber. This allows the power-conducting connecting wires of the test material to be stored in a relatively low-temperature environment, which is safer.

[0018] At the same time, the distance between the reflector plate and the placement mechanism is adjusted according to the width of the test material, so that the light reflected from test materials of different sizes is at the same distance, thus making the intensity of reflection the same and effectively ensuring the accuracy of the test data. In addition, the size of the connecting channel can also be adjusted, so that when testing relatively large test materials, the heat inside the chamber can be uniformly simulated and the resistance of airflow circulation can be reduced. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the simulated cavity of the present invention;

[0021] Figure 3 This is a side view of the simulated cavity of the present invention;

[0022] Figure 4For the present invention Figure 3 A schematic diagram of the structure at point A;

[0023] Figure 5 This is a schematic diagram of the light reflection detection structure of the narrow photovoltaic module of the present invention;

[0024] Figure 6 This is a schematic diagram of the detection structure for light reflection from a wide photovoltaic module according to the present invention;

[0025] Figure 7 This is a schematic diagram of the internal air circulation structure of the simulated cavity of the present invention;

[0026] Figure 8 For the present invention Figure 5 A schematic diagram of the structure at point B;

[0027] Figure 9 This is a schematic diagram of the reflective plate structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the cross-sectional structure of the second side plate of the present invention.

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Equipment body; 11. Side panel assembly; 12. End panel assembly; 13. Vertical panel assembly; 14. Control cabinet; 15. Simulation light; 16. Fan; 17. Air inlet duct; 18. Air exhaust duct; 19. Simulation chamber; 10. Connecting passage;

[0031] 111. First side panel; 112. Second side panel; 121. Bottom panel; 122. Top panel; 131. First upright panel; 132. Second upright panel; 1311. Side door; 1312. Storage hole;

[0032] 2. Light-collecting mechanism; 21. Adjustment groove; 22. Reflecting plate; 221. Extension plate; 222. Rotating plate; 223. Side plate; 224. Rotating block; 23. Electric actuator; 24. Push cavity;

[0033] 3. Placement mechanism; 31. Fixing block; 32. Cylinder; 33. Welding box; 34. Support frame; 35. Support plate; 36. Glass plate; 37. Flip plate; 38. Fixing plate;

[0034] 4. Track; 41. Side protrusion;

[0035] 5. Sealing gasket;

[0036] 6. Support limiting plate; 61. Magnetic strip;

[0037] 7. Slide rail; 71. Slider;

[0038] 8. Telescopic plank;

[0039] 9. Horizontal block; 91. Horizontal groove. Detailed Implementation

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] For examples, please refer to Figures 1-5 As shown, the purpose of this embodiment is to provide a solar environment simulation device for life testing of photovoltaic modules, including a device body 1. The device body 1 includes a side plate assembly 11, an end plate assembly 12, and a vertical plate assembly 13. The side plate assembly 11, the end plate assembly 12, and the vertical plate assembly 13 are sealed and fixedly connected. A simulation cavity 19 is formed between the side plate assembly 11, the end plate assembly 12, and the vertical plate assembly 13. An operation cabinet 14 is installed on the side wall of the device body 1. Three simulation lights 15 are provided on the top of the simulation cavity 19. An air inlet pipe 17 is provided on the upper end of the inner wall of the simulation cavity 19. An exhaust pipe 18 is provided on the lower end of the inner wall of the simulation cavity 19. A fan 16 is installed on the top of the end plate assembly 12.

[0042] The simulation cavity 19 is equipped with a placement mechanism 3 for storing test materials. The placement mechanism 3 divides the simulation cavity 19 into an upper cavity and a lower cavity. The side wall of the simulation cavity 19 is equipped with a light-collecting mechanism 2, which includes two adjustment slots 21. Each of the two adjustment slots 21 is movably connected to a reflective light plate 22. The reflective light plate 22 is used to reflect the light that shines on the edge of the placement mechanism 3 for reuse. A connecting channel 10 is formed between the placement mechanism 3 and the two reflective light plates 22.

[0043] The aforementioned simulated lamp 15 can be a xenon lamp or a metal halide lamp. Xenon lamps and metal halide lamps have the characteristics of high brightness and a spectrum close to sunlight, which can better simulate the sunlight environment. The surface of the aforementioned reflector plate 22 can be a mirror material.

[0044] The side panel assembly 11 includes a first side panel 111 and a second side panel 112. The end panel assembly 12 includes a bottom plate 121 and a top plate 122. The upright panel assembly 13 includes a first upright plate 131 and a second upright plate 132. A storage hole 1312 is provided in the middle of the first upright plate 131. A side door 1311 is sealed inside the storage hole 1312.

[0045] See Figure 2 As shown, by opening the side door 1311, small test materials can be placed into the simulation cavity 19 through the storage hole 1312. At the same time, the placement position of the test materials can be observed, which effectively improves the test effect of the test materials.

[0046] The placement mechanism 3 is used to store the test materials that need to be tested. The specific structure of the placement mechanism 3 is disclosed below. The placement mechanism 3 includes a support frame 34 that is attached to the top of the base plate 121. A support plate 35 is fixedly installed on the top of the support frame 34. A glass plate 36 for placing the test materials is installed inside the support plate 35.

[0047] See Figure 3 and combined Figure 4 As shown, the support plate 35 is welded to the top of the support frame 34, the glass plate 36 is installed inside the support plate 35, and the test material to be tested is placed on the surface of the glass plate 36. The support plate 35 and the glass plate 36 divide the simulation cavity 19 into an upper cavity and a lower cavity (enclosed by the support frame 34 and the support plate 35). The test material is located inside the upper cavity, and the connecting wire for energizing the test material is located in the lower cavity.

[0048] The first side plate 111 is composed of a flip plate 37 and a fixed plate 38. The fixed plate 38 is located at the upper end of the flip plate 37 and is fixedly connected to the top plate 122. The flip plate 37 is rotatably connected to the bottom plate 121 by a hinge. A fixed block 31 is fixedly installed on the side surface of the flip plate 37 near the simulation cavity 19. A welding box 33 is installed at the bottom of the inner cavity of the simulation cavity 19. A cylinder 32 is fixedly connected inside the welding box 33. The piston rod of the cylinder 32 is rotatably connected to the inside of the fixed block 31.

[0049] See Figure 2 As shown, when placing relatively large test materials, cylinder 32 can be activated to cause the piston rod inside cylinder 32 to slide. With the push force generated by the piston rod and the action of the hinge, the flip plate 37 can be flipped to open the simulation chamber 19. Then, the support frame 34 and the support plate 35 and glass plate 36 fixedly connected to its top are pulled out. The test material to be tested is placed on the surface of the glass plate 36 (using mirrored glass). Then, the support frame 34, support plate 35 and glass plate 36 are pushed back into the simulation chamber 19. Then, cylinder 32 is used again to pull the flip plate 37 to rotate to the initial position and close the simulation chamber 19. Thus, the placement operation of relatively large test materials is completed.

[0050] It should be noted that the height of the welding box 33 is lower than that of the support plate 35. Therefore, the position of the welding box 33 does not affect the pulling of the support frame 34.

[0051] When it is necessary to test the material inside the simulation cavity 19, the simulation lamp 15 will be turned on to conduct a simulated sunlight environment test on the surface of the test material. In order to further improve the lighting effect, the light can be reused by the light collection mechanism 2. The specific structure of the light collection mechanism 2 is disclosed below. The light collection mechanism 2 also includes a push cavity 24 located between the adjustment groove 21 and the reflective light plate 22. The two adjustment grooves 21 are respectively opened on the surface of the first side plate 111 and the second side plate 112. The reflective light plate 22 includes an extension plate 221 and a rotating light plate 22. 2 and side light plate 223, extension plate 221 are fixedly installed on the top of the inner cavity of adjustment groove 21, and extension plate 221 is located on the side near the opening of adjustment groove 21. Side light plate 223 slides vertically inside adjustment groove 21. Rotating light plate 222 has rotating blocks 224 rotatably installed at both ends. One rotating block 224 is fixedly connected to the end surface of extension plate 221 near the inner cavity of adjustment groove 21, and the other rotating block 224 is slidably installed on the outer wall of side light plate 223. Reflective material is laid on the surface of rotating light plate 222 and side light plate 223.

[0052] An electric push rod 23 is fixedly installed on the inner wall of the adjustment groove 21. The movable end of the electric push rod 23 is connected to the side of the side light plate 223 away from the rotating light plate 222.

[0053] See Figure 5 As shown, when the width of the test material being tested is relatively narrow, the light illuminating the side of the glass plate 36 by the simulated lamp 15 will be reflected by the glass and projected onto the surface of the reflective light plate 22 on the side wall of the simulated cavity 19. Since the test material is placed in the center, the reflection distances on both sides are extremely close, and the difference in reflection intensity is negligible. In this case, with the help of the reflection function of the reflective light plate 22 and the glass plate 36, the light beam illuminating the side surface of the glass plate 36 can be reflected back into the simulated cavity 19, realizing the reuse of the light beam. With this setting, the intensity of the solar environment is greatly improved without increasing the power of the simulated lamp 15.

[0054] In addition, the glass plate 36 reflects light, reducing the heat generated by its own light absorption. When the glass plate 36 absorbs less heat, the heat transferred to the lower cavity is also reduced accordingly, thereby effectively lowering the temperature inside the lower cavity. This allows the power-conducting connection wires of the test material to be stored in a relatively low-temperature environment, which is safer. Furthermore, storing the power-conducting test material through the glass plate 36 achieves an insulation effect.

[0055] Combination Figure 6It can be seen that if the test material being tested is relatively wide, two electric actuators 23 need to be activated simultaneously and at the same speed. At this time, the two electric actuators 23 will pull the two side light plates 223 closer to the inside of the adjustment groove 21. During the pulling of the side light plates 223, the rotating light plate 222 will rotate between the extension plate 221 and the side light plate 223. Since the position of the side light plate 223 is adjusted, the distance between the side light plate 223 and the edge of the material is similar to the distance when the test material is narrow. Therefore, whether the material is relatively wide or relatively narrow, the distance of the reflected light is similar and there will be no large deviation in the simulation data.

[0056] When the test material being tested is relatively wide, it can significantly obstruct airflow in the testing environment. Without intervention, heat can easily accumulate in localized areas, leading to severely uneven temperature distribution. Figure 7 As shown, as the two electric actuators 23 pull the two side light plates 223 closer to the interior of the adjustment groove 21, the inner diameter of the connecting channel 10 is widened. This makes it easier for the hot air entering from the air inlet pipe 17 to flow to the exhaust pipe 18, which evens out the heat in the simulation cavity 19 and improves the accuracy of the test data. The exhaust pipe 18 is close to the lower cavity, so the hot air can be quickly drawn away, which ensures the uniformity of the temperature in the simulation cavity 19 and does not affect the safety of the test material connection wires.

[0057] in, Figure 5 and Figure 6 The hollow arrow in the image indicates the path of the light beam; Figure 6 The solid arrow in the middle indicates the adjustment direction of the side light panel 223; Figure 7 The dotted arrow in the diagram indicates the direction of airflow within simulation cavity 19.

[0058] Since it is necessary to reduce the interference of external environmental factors on the test process when performing a closure test on the simulation cavity 19, a sealing gasket 5 is fixedly connected to one end of the fixed plate 38 near the flip plate 37. The sealing gasket 5 is made of elastic material.

[0059] The improvement lies in: combination Figure 5 It can be seen that when the flip plate 37 rotates to close the simulation cavity 19, the sealing gasket 5 can fit tightly against the flip plate 37, effectively filling the gap between the fixed plate 38 and the flip plate 37, reducing the entry of external environmental factors into the simulation cavity 19, creating a relatively stable test environment for the test material that is not affected by external interference, thereby ensuring the smooth progress of the test process and the accuracy of the test data. The sealing gasket 5 can be made of rubber.

[0060] Since it is necessary to ensure that the support frame 34 can move stably and smoothly when placing and removing relatively large test materials, so as to accurately place the test materials in the designated position and smoothly remove the materials after the test, the top of the base plate 121 is fixedly installed with a track 4, and the lower side wall of the support frame 34 is fixedly installed with a side protrusion 41, the surface of the side protrusion 41 is in contact with the inner wall of the track 4.

[0061] The improvements are: See Figure 4 As shown, the track 4 can restrict the movement direction of the support frame 34, so that the support frame 34 has a clear path and guidance during the movement. The fit between the side protrusion 41 and the inner wall of the track 4 ensures the stability of the movement of the support frame 34, thereby ensuring that the operation of placing and taking out large-volume test materials can be carried out accurately and smoothly, improving the efficiency and reliability of the entire testing process.

[0062] Since the test material needs to be placed centered below the simulation lamp 15, the placement position of the support plate 35 needs to be restricted. Therefore, a support limiting plate 6 is attached to one end of the track 4 near the second side plate 112. The support limiting plate 6 is made of metal and is fixedly installed on the top of the base plate 121. A magnetic strip 61 is laid on one end of the support frame 34 near the support limiting plate 6.

[0063] like Figure 8 As shown, a support limiting plate 6 is attached to one end of the track 4 near the second side plate 112. The support limiting plate 6 is made of metal (such as iron) and is fixedly installed on the top of the base plate 121. At the same time, a magnetic strip 61 is laid on one end of the support frame 34 near the support limiting plate 6. When the support frame 34 moves along the track 4, after reaching a specific position, the magnetic strip 61 will attract each other to the metal support limiting plate 6, thereby fixing the position of the support frame 34. In this way, it can be ensured that the support plate 35 is always in a specific position, so that the test material can be accurately centered under the simulation lamp 15, providing a strong guarantee for the smooth conduct of the test.

[0064] Since the rotating light plate 222 needs to be able to rotate flexibly between the side light plate 223 and the extension plate 221 when testing materials of different widths, so as to adjust the position of the side light plate 223 and achieve adaptive adjustment for materials of different widths, a sliding groove 7 is provided at one end of the side light plate 223 near the rotating light plate 222, and a slider 71 is fixedly installed on the surface of the rotating block 224 near one end of the side light plate 223, and the surface of the slider 71 is in contact with the inner wall of the sliding groove 7.

[0065] The improvements are: See Figure 9A groove 7 is provided at one end of the side light plate 223 near the rotating light plate 222. At the same time, a slider 71 is fixedly installed on the surface of the rotating block 224 near the side light plate 223. When the rotating light plate 222 rotates, the slider 71 can slide in the groove 7, providing stable guidance and support for the rotation of the rotating light plate 222. This ensures that the rotating light plate 222 can rotate accurately between the side light plate 223 and the extension plate 221 as required, thereby achieving adaptive adjustment for test materials of different widths.

[0066] Considering that the stability and straightness of the movement of the side light plate 223 need to be ensured when adjusting the position of the side light plate 223, a horizontal block 9 is fixedly connected to the bottom of the inner cavity of the adjustment groove 21, a horizontal groove 91 that fits against the surface of the horizontal block 9 is opened at the bottom of the side light plate 223, a telescopic plate 8 is fixedly installed on the upper surface of the side light plate 223, and the telescopic plate 8 is located at one end close to the push cavity 24, and the other side of the telescopic plate 8 is fixedly installed on the inner wall surface of the adjustment groove 21.

[0067] The improvement lies in: Figure 10 It can be seen that a horizontal block 9 is fixedly connected to the bottom of the inner cavity of the adjustment groove 21. At the same time, a horizontal groove 91 that fits the surface of the horizontal block 9 is opened at the bottom of the side light plate 223. The cooperation between the horizontal block 9 and the horizontal groove 91 can effectively restrict the movement direction of the side light plate 223. In addition, the telescopic plate 8 can provide a certain support and tension when the side light plate 223 moves, further ensuring the stability and straightness of the movement of the side light plate 223, thereby ensuring the smooth progress of the test process and the accuracy of the test results.

[0068] In summary, the working principle of this scheme is as follows: First, select a suitable placement method based on the size of the test material. If the test material is small, it can be placed into the simulation cavity 19 through the storage hole 1312 by opening the side door 1311. If the test material is relatively large, the cylinder 32 can be activated to make the piston rod inside the cylinder 32 slide. With the push force generated by the cylinder and the action of the hinge, the flip plate 37 can be flipped to open the simulation cavity 19. Then, the support frame 34 and the support plate 35 and glass plate 36 fixedly connected to its top are pulled out. After the test material to be tested is placed on the surface of the glass plate 36, the support frame 34, support plate 35 and glass plate 36 are pushed back into the simulation cavity 19. Then, the cylinder 32 is used again to pull the flip plate 37 to rotate to the initial position and close the simulation cavity 19.

[0069] During the test, the light from the simulated lamp 15 shining on the side of the glass plate 36 will be reflected by the glass and projected onto the surface of the reflective plate 22 on the side wall of the simulated cavity 19. With the help of the reflective functions of the reflective plate 22 and the glass plate 36, the light beam shining on the side surface of the glass plate 36 can be reflected back into the simulated cavity 19, realizing the reuse of the light beam. With this setting, the intensity of the solar environment is greatly improved without increasing the power of the simulated lamp 15.

[0070] If the test material being tested is relatively wide, two electric actuators 23 need to be activated simultaneously and at the same speed. At this time, the two electric actuators 23 will simultaneously pull the two side light plates 223 closer to the inside of the adjustment groove 21. During the pulling of the side light plates 223, the rotating light plate 222 will rotate between the extension plate 221 and the side light plate 223. Since the position of the side light plate 223 is adjusted, the distance between the side light plate 223 and the edge of the material is similar to the distance when the test material is narrow. Therefore, whether testing a material that is relatively wide or a material that is relatively narrow, the distance of the reflected light is similar, and there will be no large deviation in the simulation data.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar radiation environment simulation device for life testing of photovoltaic modules, comprising a device body (1), the device body (1) comprising a side plate assembly (11), an end plate assembly (12), and a vertical plate assembly (13), wherein the side plate assembly (11), the end plate assembly (12), and the vertical plate assembly (13) are sealed and fixedly connected, and a simulation cavity (19) is formed between the side plate assembly (11), the end plate assembly (12), and the vertical plate assembly (13), characterized in that: An operating cabinet (14) is installed on the side wall of the equipment body (1), three simulation lights (15) are installed on the top of the simulation cavity (19), an air inlet pipe (17) is installed on the upper end of the inner wall of the simulation cavity (19), an exhaust pipe (18) is installed on the lower end of the inner wall of the simulation cavity (19), and a fan (16) is installed on the top of the end plate assembly (12). The simulation cavity (19) is equipped with a placement mechanism (3) for storing test materials, which divides the simulation cavity (19) into an upper cavity and a lower cavity. The simulation cavity (19) is provided with a light-collecting mechanism (2) on its side wall. The light-collecting mechanism (2) includes two adjustment slots (21). A reflective light plate (22) is movably connected inside the two adjustment slots (21). The reflective light plate (22) is used to reflect the light irradiated at the edge of the placement mechanism (3) for reuse. A connecting channel (10) is formed between the placement mechanism (3) and the two reflective light plates (22). When a simulation test is performed on test materials of different widths, the two reflective light plates (22) can slide inside the two adjustment slots (21) respectively to adjust the reflection path of the light. At the same time, the sliding of the reflective light plate (22) is also used to adjust the inner diameter of the connecting channel (10). The side plate assembly (11) includes a first side plate (111) and a second side plate (112), the end plate assembly (12) includes a bottom plate (121) and a top plate (122), and the upright plate assembly (13) includes a first upright plate (131) and a second upright plate (132). A storage hole (1312) is provided in the middle of the first upright plate (131), and a side door (1311) is sealed inside the storage hole (1312). The placement mechanism (3) includes a support frame (34) that fits against the top of the base plate (121), a support plate (35) is fixedly installed on the top of the support frame (34), and a glass plate (36) for placing the test material is installed inside the support plate (35). The first side plate (111) is composed of a flip plate (37) and a fixed plate (38). The fixed plate (38) is located at the upper end of the flip plate (37). The fixed plate (38) is fixedly connected to the top plate (122). The flip plate (37) and the bottom plate (121) are rotatably connected by a hinge. A fixed block (31) is fixedly installed on the side surface of the flip plate (37) near the simulation cavity (19). A welding box (33) is installed at the bottom of the inner cavity of the simulation cavity (19). A cylinder (32) is fixedly connected inside the welding box (33). The piston rod of the cylinder (32) is rotatably connected to the inside of the fixed block (31).

2. The solar radiation environment simulation device for life testing of photovoltaic modules according to claim 1, characterized in that: The light-collecting mechanism (2) further includes a push cavity (24) located between the adjustment groove (21) and the reflective plate (22). The two adjustment grooves (21) are respectively opened on the surfaces of the first side plate (111) and the second side plate (112). The reflective plate (22) includes an extension plate (221), a rotating light plate (222), and a side light plate (223). The extension plate (221) is fixedly installed on the top of the inner cavity of the adjustment groove (21), and the extension plate (221) is located near the adjustment groove (21). 21) On one side of the opening, the side light plate (223) slides vertically inside the adjustment groove (21). Both ends of the rotating light plate (222) are rotatably provided with rotating blocks (224). One rotating block (224) is fixedly connected to the end surface of the extension plate (221) near the inner cavity of the adjustment groove (21), and the other rotating block (224) is slidably provided on the outer wall of the side light plate (223). The surfaces of the rotating light plate (222) and the side light plate (223) are covered with reflective material. An electric push rod (23) is fixedly installed on the inner wall of the adjustment groove (21), and the movable end of the electric push rod (23) is connected to the side of the side light plate (223) away from the rotating light plate (222).

3. The solar radiation environment simulation device for life testing of photovoltaic modules according to claim 1, characterized in that: The sealing gasket (5) is fixedly connected to one end of the fixed plate (38) near the flip plate (37), and the sealing gasket (5) is made of elastic material.

4. The solar radiation environment simulation device for life testing of photovoltaic modules according to claim 1, characterized in that: The top of the base plate (121) is fixedly installed with a track (4), and the lower side wall of the support frame (34) is fixedly installed with a side protrusion (41), the surface of the side protrusion (41) is in contact with the inner wall of the track (4).

5. The solar radiation environment simulation device for life testing of photovoltaic modules according to claim 4, characterized in that: The track (4) is fitted with a support limiting plate (6) at one end near the second side plate (112). The support limiting plate (6) is made of metal and is fixedly installed on the top of the base plate (121). The support frame (34) is covered with a magnetic strip (61) at one end near the support limiting plate (6).

6. The solar radiation environment simulation device for life testing of photovoltaic modules according to claim 2, characterized in that: The side light plate (223) has a groove (7) at one end near the rotating light plate (222), and a slider (71) is fixedly installed on the surface of the rotating block (224) at one end near the side light plate (223). The surface of the slider (71) is in contact with the inner wall of the groove (7).

7. The solar radiation environment simulation device for life testing of photovoltaic modules according to claim 2, characterized in that: A horizontal block (9) is fixedly connected to the bottom of the inner cavity of the adjustment groove (21). A horizontal groove (91) that fits the surface of the horizontal block (9) is opened at the bottom of the side light plate (223). A telescopic plate (8) is fixedly installed on the upper surface of the side light plate (223), and the telescopic plate (8) is located at one end close to the push cavity (24). The other side of the telescopic plate (8) is fixedly installed on the inner wall surface of the adjustment groove (21).

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