Light intensity uniformity testing device for photovoltaic module

Abstract

The utility model discloses a light intensity uniformity testing device for a photovoltaic module, which belongs to the field of photovoltaic technology and comprises a support, the top of the support is provided with a solar simulator through a top plate, the support is hinged with a placing plate through a connecting shaft, and the placing plate is provided with a photovoltaic panel through a clamp assembly. An adjusting assembly used for adjusting the angle of the placing plate is arranged between the support and the placing plate, and a light-transmitting plate is arranged at the position, above the photovoltaic panel, of the support through a frame. According to the light intensity uniformity testing device for the photovoltaic module, the light-transmitting plate is arranged between the photovoltaic panel and the solar simulator, so that testing conditions can be flexibly adjusted to meet different testing requirements, and the light-transmitting plate with specific light transmittance, spectrum transmission characteristics or optical characteristics can be selected according to a testing target; therefore, the characteristics of light in different weather conditions or actual environments can be simulated, and the performance of the photovoltaic module in actual application can be evaluated more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a light intensity uniformity testing device for photovoltaic components. Background Art

[0002] Photovoltaic modules, also known as solar panels, are the core of solar power generation systems. Their main function is to convert solar energy into electrical energy. Light intensity uniformity directly affects the power generation efficiency and performance of photovoltaic modules. During the production process of photovoltaic modules, through testing, we can understand the performance of photovoltaic modules under different lighting conditions, thereby evaluating their overall performance.

[0003] When conducting light intensity uniformity tests on photovoltaic modules, a solar simulator is used to simulate the situation where sunlight shines on the photovoltaic module, and then a light intensity meter or other measuring equipment is used to measure the light intensity distribution at each point on the surface of the photovoltaic module. During the test, the simulated light of the solar simulator is directly irradiated on the photovoltaic panel. However, since the light characteristics of the photovoltaic panel will be different due to different environmental conditions during actual use, the light intensity uniformity results of the photovoltaic module tested in a single environment are not accurate enough, resulting in unconvincing performance evaluation of the photovoltaic module in actual applications. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing photovoltaic module light intensity uniformity testing device cannot simulate the light characteristics under different environments during the test process, resulting in inaccurate test results, and to propose a photovoltaic module light intensity uniformity testing device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a light intensity uniformity testing device for photovoltaic components, comprising a bracket, a solar simulator is arranged on the top of the bracket through a top plate, a placement plate is hinged on the bracket through a connecting shaft, and a photovoltaic panel is arranged on the placement plate through a clamp assembly, an adjustment assembly for adjusting the angle of the placement plate is arranged between the bracket and the placement plate, and a light-transmitting plate is arranged on the bracket above the photovoltaic panel through a frame.

[0006] As a further description of the above technical solution: the interior of the frame is divided into a plurality of installation cavities by partitions, and a protruding section for abutting the light-transmitting plate is formed in the installation cavity.

[0007] As a further description of the above technical solution: the distance between the upper side surface of the frame and the upper side surface of the protruding section is greater than the thickness of the light-transmitting plate.

[0008] As a further description of the above technical solution: an insert plate is provided at the bottom corner of the frame, a positioning tube matching with the insert plate is provided on the insert plate, and the positioning tube is fixed on the bracket through the positioning plate.

[0009] As a further description of the above technical solution: the clamp assembly includes a baffle fixed on the side of the placement plate, and a clamp is arranged on the baffle through a screw.

[0010] As a further description of the above technical solution: the spacing between the baffles on the placement plate is greater than the length of the photovoltaic panel, and the end of the clamping plate close to the photovoltaic panel is made of rubber material.

[0011] As a further description of the above technical solution: the adjustment assembly includes a fixed plate fixed on the bracket, the fixed plate is hinged to the bottom of the cylinder through a first U-shaped frame, and the piston rod of the cylinder is hinged to the rear side of the placement plate through a second U-shaped frame.

[0012] As a further description of the above technical solution: the solar simulator is detachably mounted on the top plate via a mounting plate, and a mounting hole is provided at a top corner of the mounting plate.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] The light intensity uniformity testing device for photovoltaic modules can flexibly adjust the test conditions to meet different test requirements by setting a light-transmitting plate between the photovoltaic panel and the solar simulator. According to the test target, a light-transmitting plate with specific transmittance, spectral transmittance characteristics or optical characteristics can be selected, so as to simulate the characteristics of light in different weather conditions or actual environments, and further more accurately evaluate the performance of photovoltaic modules in actual applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0016] Figure 2 A partial structural schematic diagram according to an embodiment of the utility model is shown;

[0017] Figure 3 A schematic diagram of the structure of a placement plate provided according to an embodiment of the utility model is shown;

[0018] Figure 4 A schematic structural diagram of a clamp assembly provided according to an embodiment of the utility model is shown;

[0019] Figure 5 A schematic diagram of the structure of an adjustment component provided according to an embodiment of the utility model is shown;

[0020] Figure 6 A schematic structural diagram of a solar simulator provided according to an embodiment of the utility model is shown.

[0021] Legend:

[0022] 1. Bracket; 2. Top plate; 3. Solar simulator; 31. Mounting plate; 4. Placement plate; 41. Connecting shaft; 42. Clamp assembly; 421. Baffle; 422. Screw; 423. Clamp; 5. Photovoltaic panel; 6. Adjustment assembly; 61. Fixing plate; 62. First U-shaped frame; 63. Cylinder; 64. Second U-shaped frame; 7. Frame; 71. Partition; 72. Mounting cavity; 73. Protruding section; 74. Insert plate; 75. Positioning tube; 76. Positioning plate; 8. Transparent plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 6 The present embodiment provides a light intensity uniformity testing device for photovoltaic modules, comprising a bracket 1, a solar simulator 3 is arranged on the top of the bracket 1 through a top plate 2, a placement plate 4 is hinged on the bracket 1 through a connecting shaft 41, and a photovoltaic panel 5 is arranged on the placement plate 4 through a clamp assembly 42, an adjustment assembly 6 for adjusting the angle of the placement plate 4 is arranged between the bracket 1 and the placement plate 4, and a light-transmitting plate 8 is arranged on the bracket 1 above the photovoltaic panel 5 through a frame 7.

[0025] In the utility model, the test device is stably placed by the bracket 1, and the photovoltaic panel 5 to be tested is fixed on the placement plate 4 by the clamp assembly 42. Before the test, the angle of the photovoltaic panel 5 is adjusted by the adjustment assembly 6 according to the installation conditions of the photovoltaic panel 5, so that the placement plate 4 is rotated by the connecting shaft 41, so as to adjust the angle of the photovoltaic panel 5 on the placement plate 4. The solar simulator 3 on the top plate 2 simulates sunlight, and the simulated sunlight is irradiated on the photovoltaic panel 5. Then, the light intensity distribution of each point on the surface of the photovoltaic component is measured and counted according to the light intensity meter. A light-transmitting plate 8 is arranged between the solar simulator 3 and the photovoltaic panel 5 through the frame 7. The light-transmitting plate 8 can select a light-transmitting plate 8 with a specific light transmittance, spectral transmittance characteristics or optical characteristics according to the test target, so as to simulate different environments. Then, the light intensity distribution on the surface of the photovoltaic panel 5 is measured and counted under different environments, so that the measurement result is more convincing.

[0026] It should be noted that the solar simulator 3 in the present application adopts a simulator of model HSLP-2000, whose luminous spectrum range is 300nm to 25nm, which can cover the visible light and infrared bands in sunlight, so as to accurately simulate sunlight.

[0027] Specifically, refer to Figure 1 and Figure 2 The interior of the frame 7 is divided into a plurality of installation cavities 72 by a partition 71, and a protruding section 73 for abutting the light-transmitting plate 8 is formed in the installation cavity 72. The plurality of installation cavities 72 separated by the partition 71 can be provided with a plurality of light-transmitting plates 8, so that a comparative test can be formed. During the test, the comparison test with or without the light-transmitting plate 8 and with different light-transmitting plates 8 is adopted, so as to further improve the accuracy of the test result, and the light intensity uniformity data of the photovoltaic module under different environments can be accurately tested.

[0028] The distance between the upper side of the frame 7 and the upper side of the protruding section 73 is greater than the thickness of the light-transmitting plate 8. The depth of the mounting cavity 72 is greater than the thickness of the light-transmitting plate 8, and the light-transmitting plates 8 can be stacked and placed in the mounting cavity 72. During the test, multiple light-transmitting plates 8 can be stacked according to the test needs, so as to simulate more diverse environments and improve the accuracy of the test results.

[0029] Among them, a plug plate 74 is provided at the bottom corner of the frame 7, and a positioning tube 75 matching with the plug plate 74 is provided on the plug plate 74, and the positioning tube 75 is fixed on the bracket 1 through the positioning plate 76. When the frame 7 is installed, the plug plate 74 is inserted into the positioning tube 75 of the bracket 1, so that the frame 7 is installed on the bracket 1. When the frame 7 needs to be maintained and repaired, the plug plate 74 is pulled out upward to separate it from the positioning tube 75, thereby facilitating the installation and removal of the frame 7 on the bracket 1.

[0030] Specifically, refer to Figure 3 and Figure 4 The fixture assembly 42 includes a baffle 421 fixed to the upper side of the placement plate 4, and a clamping plate 423 is provided on the baffle 421 through a screw 422. The clamping plate 423 is moved by the spiral rotation of the screw 422, so that the photovoltaic panel 5 to be tested can be clamped and fixed by the clamping plate 423.

[0031] Among them, the spacing of the baffles 421 on the placement plate 4 is greater than the length of the photovoltaic panel 5, and the end of the clamping plate 423 close to the photovoltaic panel 5 is made of rubber material. The spacing of the baffles 421 is greater than the length of the photovoltaic panel 5 to ensure that the photovoltaic panel 5 can be placed between the baffles 421 so that it can be clamped and fixed by the clamping plate 423. The rubber material on the clamping plate 423 can avoid indentation when clamping the photovoltaic panel 5, thereby improving the safety of the clamp assembly 42.

[0032] Specifically, refer to Figure 1 and Figure 5 The adjustment assembly 6 includes a fixing plate 61 fixed on the bracket 1, and the fixing plate 61 is hinged to the bottom of the cylinder 63 through the first U-shaped frame 62, and the piston rod of the cylinder 63 is hinged to the rear side of the placement plate 4 through the second U-shaped frame 64. The tail of the placement plate 4 is driven to move by the extension and contraction of the cylinder 63, and the placement plate 4 can be rotated in cooperation with the first U-shaped frame 62 and the second U-shaped frame 64 hinged thereto, so as to adjust the angle of the photovoltaic panel 5 on the placement plate 4.

[0033] The solar simulator 3 is detachably mounted on the top plate 2 via a mounting plate 31, and a mounting hole is provided at the top corner of the mounting plate 31. The solar simulator 3 can be disassembled through the mounting plate 31, so that the solar simulator 3 can be easily inspected and repaired.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A light intensity uniformity testing device for photovoltaic modules, characterized in that: The invention comprises a support (1), wherein a solar simulator (3) is arranged on the top of the support (1) via a top plate (2), a placement plate (4) is hingedly connected to the support (1) via a connecting shaft (41), and a photovoltaic panel (5) is arranged on the placement plate (4) via a clamp assembly (42), an adjustment assembly (6) for adjusting the angle of the placement plate (4) is arranged between the support (1) and the placement plate (4), and a light-transmitting plate (8) is arranged on the support (1) at a position above the photovoltaic panel (5) via a frame (7).

2. A light intensity uniformity testing device for photovoltaic modules according to claim 1, characterized in that: The interior of the frame (7) is divided into a plurality of installation cavities (72) by a partition plate (71), and a protruding section (73) for abutting the light-transmitting plate (8) is formed in the installation cavity (72).

3. A light intensity uniformity testing device for photovoltaic modules according to claim 2, characterized in that: The distance between the upper side surface of the frame (7) and the upper side surface of the protruding section (73) is greater than the thickness of the light-transmitting plate (8).

4. A photovoltaic module light intensity uniformity testing device according to claim 2, characterized in that: A plug plate (74) is provided at the bottom corner of the frame (7), a positioning tube (75) matching with the plug plate (74) is provided on the plug plate (74), and the positioning tube (75) is fixed on the bracket (1) through a positioning plate (76).

5. The light intensity uniformity testing device for photovoltaic modules according to claim 1, characterized in that: The clamp assembly (42) comprises a baffle (421) fixed to the upper side of the placement plate (4), and a clamping plate (423) is arranged on the baffle (421) via a screw rod (422).

6. A photovoltaic module light intensity uniformity testing device according to claim 5, characterized in that: The spacing between the baffles (421) on the placement plate (4) is greater than the length of the photovoltaic panel (5), and the end of the clamping plate (423) close to the photovoltaic panel (5) is made of rubber.

7. The light intensity uniformity testing device for photovoltaic modules according to claim 1, characterized in that: The adjustment assembly (6) comprises a fixing plate (61) fixed on the bracket (1); the fixing plate (61) is hinged to the bottom of the cylinder (63) via a first U-shaped frame (62); and the piston rod of the cylinder (63) is hinged to the rear side of the placement plate (4) via a second U-shaped frame (64).

8. The light intensity uniformity testing device for photovoltaic modules according to claim 1, characterized in that: The solar simulator (3) is detachably mounted on the top plate (2) via a mounting plate (31), and a mounting hole is provided at a top corner of the mounting plate (31).

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