A photovoltaic module power testing device

Abstract

This utility model discloses a photovoltaic module power testing device, including a base, a rotating plate, a flipping component, and a clamping component. The base is fixed to the ground; the rotating plate is pivotally mounted on the base, and the rotation axis of the rotating plate is arranged vertically; the flipping component is mounted on the rotating plate, and the flipping component has two symmetrically arranged rotating ends, which are pivotable; the clamping component has a clamping station for fixing the photovoltaic module. By rotating the clamping component, the photovoltaic module is positioned at different angles, and with the help of a fixed light source, different light source illumination angles are simulated, thereby effectively testing the power of the photovoltaic module under different conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic module testing equipment, and in particular to a photovoltaic module power testing device. Background Technology

[0002] In the field of solar photovoltaic (PV) technology, power testing of PV modules is a crucial step in evaluating their power generation performance. For example, utility model patent application CN202421116932.8 discloses a PV module power testing device, including a test chamber containing a test support, a lighting device, and a battery. The battery is mounted on top of the test support, the lighting device is located in front of the test support, and a heating element is located on the back of the test support. A blower is installed on top of the test support, with its inlet connected to outside air in the test chamber via an inlet pipe, and its outlet facing the battery. This utility model sets up the battery and blower on the test support, allowing the blower to draw air from outside the test chamber to cool the battery, thereby extending its lifespan and ensuring its normal operation, thus avoiding interference with the PV module power test results. However, in actual testing, PV module power testing requires simulating different lighting angles to obtain multi-dimensional performance data. The existing technology, exemplified by the aforementioned patent, can only perform testing on a single plane, resulting in incomplete test data. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a photovoltaic module power testing device capable of adjusting the angle of the photovoltaic module to simulate different solar radiation angles.

[0004] A photovoltaic module power testing device according to a first aspect of the present invention includes a base, a rotating plate, a flipping component, and a clamping component. The base is fixed to the ground. The rotating plate is pivotally mounted on the base, and the rotation axis of the rotating plate is arranged vertically. The flipping component is mounted on the rotating plate and has two symmetrically arranged rotating ends, which are pivotable. The clamping component includes a frame, a limiting member, two side clamping units, and an end clamping unit. The two opposite outer sides of the frame are fixedly connected to the two rotating ends to allow the frame and the flipping component to be rotatably connected. The limiting member is fixed to one end of the inner side of the frame. The end clamping unit is retractably arranged at the other end of the inner side of the frame. The two side clamping units are retractably arranged on the left and right sides of the inner side of the frame. The limiting member and the end clamping unit are correspondingly arranged, and the two side clamping units are correspondingly arranged to form a clamping station for fixing the photovoltaic module.

[0005] A photovoltaic module power testing device according to an embodiment of the present invention has at least the following beneficial effects: by clamping the photovoltaic module at the clamping station and rotating the clamping component to make the photovoltaic module at different angles, and cooperating with a fixed light source, different light source illumination angles are simulated, thereby effectively testing the power of the photovoltaic module under different conditions.

[0006] According to some embodiments of the present invention, the limiting member is elongated and extends along the edge of the frame. In the vertical cross-section of the limiting member, the limiting member is U-shaped, and a limiting groove is constructed in the limiting member.

[0007] According to some embodiments of the present invention, the side clamping unit includes a first guide post, a side clamping member, and an elastic member. Two first guide posts are provided, which pass through the frame and can slide and extend on the frame. The side clamping member is built into the frame, and its two ends are fixedly connected to the ends of the two first guide posts respectively. The elastic member is fixed between the side clamping member and the frame, and is used to drive the two side clamping members to move closer to each other.

[0008] According to some embodiments of this utility model, the elastic element is a spring, and the spring is sleeved on the first guide post.

[0009] According to some embodiments of the present invention, a silicone block is provided on the opposite side of the side clamping member, and the silicone block is provided with a first clamping groove, with two first clamping grooves arranged opposite to each other.

[0010] According to some embodiments of this utility model, the end-side clamping unit includes a second guide post, an end-side clamping member, and a driving cylinder. Two second guide posts are provided, which penetrate the frame and can slide and extend on the frame. The end-side clamping member is built into the frame, and its two ends are respectively fixedly connected to the ends of the two second guide posts. The end-side clamping member has a second clamping groove on the side facing the limiting member. The driving cylinder is fixed on the frame, and its driving end is fixedly connected to the end-side clamping member. The driving direction of the driving cylinder is consistent with the sliding direction of the second guide post.

[0011] According to some embodiments of the present invention, a cushioning sponge pad is provided on the inner side of the second clamping groove.

[0012] According to some embodiments of this utility model, the flipping assembly includes a base, a support base, a rotating mechanism, and a servo motor. The base is fixed to the surface of the rotating plate. Two support bases are provided, one on each side of the base. The rotating mechanism includes a bearing seat and a rotating shaft. The bearing seat is fixed to the top of the support base. The rotating shaft passes through the bearing seat and rotates with it. One end of the rotating shaft passes through the frame into the interior of the frame and is fixedly connected to it. The rotating end is provided where the rotating shaft extends into the frame. The servo motor is fixedly connected to one of the rotating shafts and is used to control the rotation of the rotating shaft.

[0013] According to some embodiments of the present invention, the support base has a triangular support structure.

[0014] According to some embodiments of the present invention, the base is cylindrical, the rotating plate is disc-shaped, the outer side of the base is provided with angle scales, the surface area of ​​the rotating plate is larger than the surface area of ​​the base, and a pointer is provided on the ground of the rotating plate, the pointer pointing towards the angle scales.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of a photovoltaic module power testing device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the flipping component of the photovoltaic module power testing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the base and rotating plate of the photovoltaic module power testing device according to an embodiment of the present invention.

[0017] 100. Base; 110. Angle scale; 200. Rotating plate; 210. Pointer; 300. Flipping assembly; 310. Base; 320. Support; 330. Rotating mechanism; 331. Bearing housing; 332. Rotating shaft; 340. Rotating end; 400 Clamping assembly; 410 Frame; 420 Limiting component; 421 Limiting groove; 430 End-side clamping unit; 431 Second guide post; 432 End-side clamping component; 4321 Second clamping groove; 4322 Buffer sponge pad; 433 Drive cylinder; 440 Side-side clamping unit; 441 First guide post; 442 Side-side clamping component; 443 Elastic component; 444 Silicone block; 4441 First clamping groove; Detailed Implementation The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Reference Figure 1A photovoltaic module power testing device according to an embodiment of the present invention includes a base 100, a rotating plate 200, a flipping component 300, and a clamping component 400. The base 100 is fixed to the ground; the rotating plate 200 is pivotally mounted on the base 100, and the rotation axis 332 of the rotating plate 200 is arranged vertically; the flipping component 300 is mounted on the rotating plate 200, and the flipping component 300 has two symmetrically arranged rotating ends 340, which are pivotable; the clamping component 400 includes a frame 410, a limiting member 420, two side clamping units 440, and an end clamping unit 430. The two opposite outer sides of the frame 410 are fixedly connected to the two rotating ends 340, so that the frame 410 and the flipping assembly 300 are rotatably connected. The limiting member 420 is fixed to one end of the inner side of the frame 410. The end clamping unit 430 is telescopically arranged at the other end of the inner side of the frame 410. The two side clamping units 440 are telescopically arranged on the left and right sides of the inner side of the frame 410. The limiting member 420 and the end clamping unit 430 are correspondingly arranged, and the two side clamping units 440 are correspondingly arranged between each other to construct a clamping station for fixing the photovoltaic module.

[0022] First, the photovoltaic module is placed inside the frame 410, so that one end of the module contacts the limiting member 420. By controlling the extension and retraction of the end clamping unit 430, it cooperates with the limiting member 420 to clamp both ends of the module. At the same time, the side clamping unit 440 can extend and retract to clamp the module from the left and right sides, completing the fixation of the photovoltaic module in the clamping position. Then, the rotating plate 200 can pivot around the vertical axis, driving the flipping module 300 and the clamping module 400 to rotate as a whole. The rotating end 340 of the flipping module 300 can pivot (along the vertical axis). Figure 2 and Figure 3 The arrow moves back and forth, thereby causing the frame 410 to rotate, making the photovoltaic module present different angles; finally, with the help of a fixed light source, the power of the photovoltaic module is tested by simulating different light source illumination angles.

[0023] In summary, by clamping the photovoltaic module at the clamping station and rotating the clamping module by 400 degrees to make the photovoltaic module at different angles, and with the help of a fixed light source, different light source illumination angles are simulated, thereby effectively testing the power of the photovoltaic module under different conditions.

[0024] It should be noted that the technical solution of this utility model embodiment is only used for fixing photovoltaic modules and does not involve specific testing processes. The specific testing process for photovoltaic modules is a conventional method for those skilled in the art, and can be simply summarized as including the following steps: Step 1: Calibrate the solar simulator using standard solar cells (compliant with IEC 60904-2) to ensure that the spectral matching, irradiance non-uniformity, and instability meet the A+A+A+ grade standard; Step 2: Clean the surface of the module and fix the photovoltaic module using the photovoltaic module power testing device of this utility model embodiment; Step 3: Connect the positive and negative terminals of the photovoltaic module and check the grounding resistance (≤4Ω) and insulation resistance (≥10MΩ) to ensure electrical safety; Step 4: Adopt an automated testing system (such as the Sinovel PV Automated Testing System) to integrate solar simulators, temperature and humidity chambers, mechanical load equipment, etc., to achieve fully automated control of the testing process.

[0025] In summary, the above steps are only a simplified description of the long process in the prior art. The specific testing methods should be adjusted according to the required test data, and will not be described in detail here.

[0026] In some embodiments, the limiting member 420 is elongated and extends along the edge of the frame 410. In its vertical cross-section, the limiting member 420 is U-shaped, and a limiting groove 421 is formed within it. The limiting groove 421 engages with the edge of the photovoltaic module, thus defining the module's position and ensuring accurate initial positioning of the photovoltaic module within the frame 410.

[0027] In some embodiments, the side clamping unit 440 includes a first guide post 441, a side clamping member 442, and an elastic member 443. Two first guide posts 441 are provided, passing through the frame 410 and capable of sliding and extending on the frame 410. The side clamping member 442 is built into the frame 410, with both ends of the side clamping member 442 fixedly connected to the ends of the two first guide posts 441, respectively. The elastic member 443 is fixed between the side clamping member 442 and the frame 410, and is used to drive the two side clamping members 442 to move closer together. When the photovoltaic module is placed in the frame 410 and positioned, the side clamping members 442 slide on the frame 410 through the first guide post 441 due to the force of the elastic member 443, causing the two side clamping members 442 to move closer together, thereby clamping the left and right sides of the photovoltaic module.

[0028] Preferably, the elastic element 443 is a spring, which is sleeved on the first guide post 441, allowing the spring to extend and retract in one direction.

[0029] Specifically, a silicone block 444 is provided on one side of the side clamping member 442, and the silicone block 444 is provided with a first clamping groove 4441, with two first clamping grooves 4441 arranged opposite to each other. The silicone block 444 on the side clamping member 442 moves accordingly. When the silicone block 444 contacts the left and right edges of the photovoltaic module, the elastic force of the spring makes the first clamping groove 4441 on the silicone block 444 fit tightly against the edge of the module, thereby achieving clamping of the left and right sides of the photovoltaic module.

[0030] In some embodiments, the end-side clamping unit 430 includes a second guide post 431, an end-side clamping member 432, and a driving cylinder 433. Two second guide posts 431 are provided, which pass through the frame 410 and can slide and extend on the frame 410. The end-side clamping member 432 is built into the frame 410, and its two ends are respectively fixedly connected to the ends of the two second guide posts 431. The end-side clamping member 432 is provided with a second clamping groove 4321 on the side facing the limiting member 420. The driving cylinder 433 is fixed on the frame 410, and its driving end is fixedly connected to the end-side clamping member 432. The driving direction of the driving cylinder 433 is consistent with the sliding direction of the second guide post 431. After one end of the photovoltaic module is positioned with the limiting groove 421 of the limiting member 420, the drive cylinder 433 is activated. The drive end of the drive cylinder 433 pushes the end clamping member 432, causing it to move along the sliding direction on the frame 410 through the second guide post 431. The end clamping member 432 moves toward the limiting member 420. When the second clamping groove 4321 contacts the edge of the other end of the photovoltaic module, the drive stops. At this time, the limiting member 420 and the end clamping unit 430 clamp the module from both ends.

[0031] Preferably, a buffer sponge pad 4322 is provided on the inner side of the second clamping groove 4321. The buffer sponge pad 4322 on the inner side of the second clamping groove 4321 contacts the edge of the component, which plays a role in buffering and increasing friction.

[0032] In some embodiments, refer to Figure 2The flipping assembly 300 includes a base 310, a support 320, a rotating mechanism 330, and a servo motor. The base 310 is fixed to the surface of the rotating plate 200. Two support 320s are provided, one on each side of the base 310. The rotating mechanism 330 includes a bearing seat 331 and a rotating shaft 332. The bearing seat 331 is fixed to the top of the support 320. The rotating shaft 332 passes through the bearing seat 331 and rotates with it. One end of the rotating shaft 332 passes through the frame 410 and is fixedly connected to it. The rotating end 340 is provided with one end of the rotating shaft 332 extending into the frame 410. The servo motor is fixedly connected to one of the rotating shafts 332 and is used to control the rotation of the rotating shaft 332. The base 310 is fixed to the rotating plate 200 and rotates as the rotating plate 200 pivots. After the servo motor starts, it drives the rotating shaft 332, which is fixed to it, to rotate. The rotating shaft 332 rotates flexibly on the support base 320 through the bearing seat 331. Since one end of the rotating shaft 332 is fixed to the frame 410, it drives the frame 410 to rotate around the axis of the rotating shaft 332. The two symmetrically arranged rotating ends 340 ensure the balance of the frame 410 when it rotates, realize the pivoting of the frame 410, and thus allow the photovoltaic modules fixed in the frame 410 to be adjusted to different angles. By using the precise control technology of the servo motor, the rotating shaft 332 is driven to rotate by the motor, and the bearing seat 331 provides support and rotational freedom for the rotating shaft 332, realizing the controllable angle rotation of the frame 410.

[0033] Preferably, the support base 320 has a triangular support structure. The triangular support structure utilizes the stability principle of a triangle to enhance the structural strength and stability of the support base 320, ensuring that the flipping assembly 300 remains stable during rotation.

[0034] It should be mentioned that when the flipping component 300 drives the frame 410 to rotate, in order to avoid motion interference between the first guide post 441 and the flipping component 300, refer to Figure 1 and Figure 2 When the frame 410 is placed vertically, the limiting member 420 is located below, the side clamping unit 440 is located above the support base 320, and the end clamping unit 430 is located directly above. The rotation angle of the entire frame 410 is less than 360°. In actual use, the flipping component 300 only needs to control the frame 410 to adjust its position between horizontal and vertical placement, which can be used with a fixed light source to simulate sunlight from multiple angles.

[0035] In some embodiments, refer to Figure 3The base 100 is cylindrical, and the rotating plate 200 is disc-shaped. An angle scale 110 is provided on the outer surface of the base 100. The surface area of ​​the rotating plate 200 is larger than that of the base 100. A pointer 210 is provided on the ground of the rotating plate 200, pointing towards the angle scale 110. The angle scale 110 and pointer 210 provide a direct indication of the rotation angle of the rotating plate 200, allowing operators to conveniently and accurately adjust the angle of the photovoltaic module, thus improving the efficiency and accuracy of angle adjustment.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A photovoltaic module power testing apparatus, comprising: include: Base (100), fixed to the ground; A rotating plate (200) is pivotally mounted on the base (100), and the rotation axis (332) of the rotating plate (200) is arranged in a vertical direction; A flipping assembly (300) is mounted on the rotating plate (200). The flipping assembly (300) has two symmetrically arranged rotating ends (340), and the rotating ends (340) are pivotable. The clamping assembly (400) includes a frame (410), a limiting member (420), two side clamping units (440) and an end clamping unit (430). The two opposite outer sides of the frame (410) are fixedly connected to the two rotating ends (340) so that the frame (410) and the flipping assembly (300) are rotatably connected. The limiting member (420) is fixed to one end of the inner side of the frame (410). The end clamping unit (430) is telescopically arranged at the other end of the inner side of the frame (410). The two side clamping units (440) are telescopically arranged on the left and right sides of the inner side of the frame (410). The limiting member (420) and the end clamping unit (430) are respectively arranged, and the two side clamping units (440) are respectively arranged to form a clamping station for fixing photovoltaic modules.

2. A photovoltaic module power test apparatus according to claim 1, wherein, The limiting member (420) is elongated and extends along the edge of the frame (410). In the vertical cross section of the limiting member (420), the limiting member (420) is U-shaped and a limiting groove (421) is formed in the limiting member (420).

3. A photovoltaic module power test apparatus according to claim 1, wherein, The side clamping unit (440) includes: The first guide post (441) is provided in two parts. The first guide post (441) passes through the frame (410) and can slide and extend on the frame (410). Side clamping member (442) is built into the frame (410), and the two ends of the side clamping member (442) are fixedly connected to the ends of the two first guide posts (441); An elastic element (443) is fixed between the side clamping member (442) and the frame (410), and the elastic element (443) is used to drive the two side clamping members (442) to move closer to each other.

4. A photovoltaic module power test apparatus according to claim 3, wherein, The elastic element (443) is a spring, which is sleeved on the first guide post (441).

5. A photovoltaic module power test apparatus according to claim 3, wherein, A silicone block (444) is provided on the opposite side of the side clamping member (442), and the silicone block (444) is provided with a first clamping groove (4441), and the two first clamping grooves (4441) are arranged opposite to each other.

6. The photovoltaic module power test apparatus of claim 1, wherein, The end-side clamping unit (430) includes: The second guide post (431) is provided in two parts. The second guide post (431) passes through the frame (410) and can slide and extend on the frame (410). An end-side clamping member (432) is built into the frame (410). The two ends of the end-side clamping member (432) are fixedly connected to the ends of the two second guide posts (431) respectively. The end-side clamping member (432) is provided with a second clamping groove (4321) on the side facing the limiting member (420). A drive cylinder (433) is fixed on the frame (410). The drive end of the drive cylinder (433) is fixedly connected to the end clamping member (432). The drive direction of the drive cylinder (433) is consistent with the sliding direction of the second guide post (431).

7. A photovoltaic module power test apparatus according to claim 6, wherein, The inner side of the second clamping groove (4321) is provided with a buffer sponge pad (4322).

8. The photovoltaic module power test apparatus of claim 1, wherein, The flipping component (300) includes: The base (310) is fixed to the surface of the rotating plate (200); There are two support bases (320), which are respectively located on both sides of the base (310); The rotating mechanism (330) includes a bearing seat (331) and a rotating shaft (332). The bearing seat (331) is fixed to the top of the support seat (320). The rotating shaft (332) passes through the bearing seat (331) and rotates in cooperation with the bearing seat (331). One end of the rotating shaft (332) passes through the frame (410) to the interior of the frame (410) and is fixedly connected to the frame (410). The rotating end (340) is provided with one end of the rotating shaft (332) extending into the frame (410). A servo motor is fixedly connected to one of the rotating shafts (332), and the servo motor is used to control the rotation of the rotating shaft (332).

9. A photovoltaic module power test apparatus according to claim 8, wherein, The support base (320) has a triangular support structure.

10. The photovoltaic module power test apparatus of claim 1, wherein, The base (100) is cylindrical, the rotating plate (200) is disc-shaped, the outer side of the base (100) is provided with an angle scale (110), the surface area of ​​the rotating plate (200) is larger than the surface area of ​​the base (100), and a pointer (210) is provided on the ground of the rotating plate (200), the pointer (210) is pointing towards the angle scale (110).

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