Photovoltaic power station fault detection device

Abstract

The utility model relates to a photovoltaic power station fault detection device, which comprises a base, a support arm and an EL camera assembly, the lower end of the support arm is arranged on the base, the EL camera assembly is arranged at the top of the support arm, four corners of the base are provided with walking wheels, the walking wheels are used for walking along the surface of a photovoltaic assembly, one side edge of the base is provided with a guide wheel assembly, the guide wheel assembly is rotatably arranged on the side edge of the base, and when the guide wheel assembly rotates, one of the guide wheel assembly can abut against the side wall of the top of the photovoltaic assembly or be located above the walking wheel so as to avoid the walking wheel. The photovoltaic power station fault detection device can efficiently carry out EL detection on a photovoltaic assembly, improves the detection efficiency, reduces the detection cost, and is simple in structure and convenient to carry and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and particularly relates to a fault detection device for a photovoltaic power station. Background Art

[0002] In the on-site detection of a photovoltaic power station, the EL (Electroluminescence) detection of photovoltaic modules is a very important detection item, which is a detection technology for discriminating defects of photovoltaic modules according to the electroluminescence principle of silicon materials. Specifically, a certain current is applied to the external power supply of the photovoltaic module to be detected, causing the battery cells on the photovoltaic module to emit light; if there are many hidden cracks in the battery cells, dark stripes directly related to the cracks will be formed on the light-emitting surface. Then, an EL special camera is used to take high-definition photos of the light-emitting photovoltaic module, and the morphology and size of the dark stripes are identified by optical methods to judge the qualification of the photovoltaic battery cells.

[0003] In the related art, when an EL tester is used to perform EL detection on a photovoltaic module, a tripod is usually used for fixation. This kind of EL tester can only perform EL testing on a single photovoltaic module at a time. When testing the next photovoltaic module, the tripod needs to be moved, and this testing method has low efficiency. Although using a detection robot can improve the testing efficiency, the mechanism of the detection robot is complex and the cost is high, making it difficult to promote and apply. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fault detection device for a photovoltaic power station to solve the above problems existing in the current fault detection of photovoltaic power stations.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A fault detection device for a photovoltaic power station includes a base, a support arm and an EL camera assembly. The lower end of the support arm is arranged on the base, and the EL camera assembly is arranged at the top of the support arm. Four corners of the base are provided with traveling wheels for traveling along the surface of the photovoltaic module. A guiding wheel assembly is arranged on one side edge of the base. Among them, the guiding wheel assembly is rotatably arranged on the side edge of the base, and when the guiding wheel assembly rotates, it can selectively abut against the top side wall of the photovoltaic module or be located above the traveling wheels to avoid the traveling wheels.

[0007] Further, the base includes two long aluminum alloy profiles and two short aluminum alloy profiles. The two long aluminum alloy profiles and the two short aluminum alloy profiles enclose each other, and the traveling wheels are arranged at the ends of the long aluminum alloy profiles.

[0008] Further, the guide wheel assembly includes an L-shaped support plate, a guide wheel, a profile nut, and a bolt. An installation groove is provided on the side wall of the long aluminum alloy profile. The profile nut is arranged in the installation groove. The bolt passes through the L-shaped support plate and is connected to the profile nut to fix the L-shaped support plate to the long aluminum alloy profile. The guide wheel is arranged on the L-shaped support plate. When the L-shaped support plate is in place, the guide wheel housing either abuts against the top side wall of the photovoltaic module or is located above the traveling wheel to avoid the traveling wheel.

[0009] Further, a flipping seat is provided at the middle position of the short aluminum alloy profile. A positioning pin is provided on the flipping seat. The lower end of the support arm is located in the flipping seat and is kept in a vertical state by the positioning pin.

[0010] Further, a cross arm is provided at the top of the support arm. An EL camera mounting plate is provided at the end of the cross arm. The EL camera assembly is connected to the EL camera mounting plate.

[0011] Further, a towing hook for towing the base is provided on the side wall of the short aluminum alloy.

[0012] Further, an equipment placement plate is provided on one side of the base away from the flipping seat.

[0013] Advantages of the present utility model:

[0014] For the photovoltaic power station fault detection device of the present utility model, by providing traveling wheels, the device can easily move on the surface of photovoltaic modules, thereby realizing continuous and rapid detection of multiple photovoltaic modules, significantly improving the detection efficiency. The design of the guide wheel assembly enables the device to adapt to photovoltaic modules, enhancing the flexibility and adaptability of the detection. The guide wheel assembly can be rotatably arranged and can abut against the top side wall of the photovoltaic module to maintain stability when needed. Compared with the traditional tripod fixing method or complex detection robots, the structure of this device is simple, the operation is more convenient, and there is no need to frequently move and refix the equipment. At the same time, its manufacturing cost and maintenance cost are relatively low, and it is easier to promote and apply. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the usage scenario of the photovoltaic power station fault detection device of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the photovoltaic power station fault detection device of the present utility model during detection;

[0017] Figure 3 is Figure 2 the schematic structural diagram at position A in

[0018] Figure 4This is a schematic structural diagram of the storage state of the fault detection device for the photovoltaic power station of the present utility model.

[0019] Names corresponding to each mark in the figure:

[0020] 1. Base, 11. Long aluminum alloy profile, 12. Short aluminum alloy profile, 13. Traveling wheel

[0021] 2. Support arm, 3. EL camera assembly, 4. Guide wheel assembly, 41. L-shaped support plate, 42. Guide wheel, 43. Profile nut, 44. Bolt, 5. Flip seat, 6. Positioning pin, 7. Cross arm, 8. EL camera mounting plate, 9. Drag hook, 10. Equipment placement plate. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] As Figure 1 - Figure 4 shown, the fault detection device for the photovoltaic power station of the present utility model mainly includes a base 1, a support arm 2, and an EL camera assembly 3.

[0024] The base 1 is the basic part of the detection device. It bears the entire device and ensures the stable movement of the device on the surface of the photovoltaic module. The base 1 is composed of two long aluminum alloy profiles 11 and two short aluminum alloy profiles 12. These four profiles enclose each other to form a rectangular frame. Traveling wheels 13 are installed at the ends of the long aluminum alloy profiles 11. The design of the traveling wheels 13 enables the device to move easily on the surface of the photovoltaic module, and at the same time, it can be dragged without the need to carry it during transfer.

[0025] As Figure 2 and Figure 3 shown, a guide wheel assembly 4 is provided on one side of the base 1. The guide wheel assembly 4 can rotate. When the guide wheel assembly 4 rotates to abut against the top side wall of the photovoltaic module, it can help the device maintain stability on the photovoltaic module; when it is necessary to avoid the traveling wheels 13, it can be rotated above the traveling wheels 13 to avoid interference with the traveling wheels 13 during the dragging process.

[0026] As Figure 3 shown, the specific structure of the guide wheel assembly 4 includes an L-shaped support plate 41, a guide wheel 42, a profile nut 43, and a bolt 44. An installation groove is provided on the side wall of the long aluminum alloy profile 11, and the profile nut 43 is fixed in the installation groove. The bolt 44 passes through the L-shaped support plate 41 and is connected to the profile nut 43, thereby fixing the L-shaped support plate 41 on the long aluminum alloy profile 11. The guide wheel 42 is installed on the L-shaped support plate 41 and can move as the L-shaped support plate 41 rotates.

[0027] The lower end of the support arm 2 is connected to the base 1, specifically to the swivel base 5 at the middle position of the short aluminum alloy profile 12. A positioning pin 6 is provided on the swivel base 5. The lower end of the support arm 2 is inserted into the swivel base 5 and kept in a vertical state by the positioning pin 6. This connection method enables the support arm 2 to be flipped when needed, facilitating storage and transportation.

[0028] A cross arm 7 is provided at the top of the support arm 2, and an EL camera mounting plate 8 is installed at the end of the cross arm 7. The EL camera assembly 3 is installed on the EL camera mounting plate 8 and is used to take high-definition pictures of the photovoltaic modules for subsequent optical recognition and defect discrimination.

[0029] To improve the portability of the device, a towing hook 9 is also provided on the side wall of the short aluminum alloy profile 12 to facilitate the staff to tow the base 1 for movement. At the same time, an equipment placement plate 10 is provided on one side of the base 1 away from the swivel base 5, where some auxiliary equipment or tools required for detection can be placed.

[0030] Through the above structure, the photovoltaic power station fault detection device of the present utility model can efficiently perform EL detection on photovoltaic modules, improving the detection efficiency, reducing the detection cost, and having a simple structure, being convenient for carrying and operation.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model fall within the scope of protection of the present utility model.

Claims

1. A photovoltaic power station fault detection device, characterized in that: It includes a base, a support arm and an EL camera assembly. The lower end of the support arm is arranged on the base, and the EL camera assembly is arranged at the top of the support arm. Walking wheels are arranged at the four corners of the base, and the walking wheels are used to walk along the surface of the photovoltaic module. A guiding wheel assembly is arranged on one side edge of the base. Among them, the guiding wheel assembly is rotatably arranged on the side edge of the base. When the guiding wheel assembly rotates, it can alternatively abut against the top side wall of the photovoltaic module or be located above the walking wheels to avoid the walking wheels.

2. The photovoltaic power station fault detection device according to claim 1, wherein: The base includes two long aluminum alloy profiles and two short aluminum alloy profiles. The two long aluminum alloy profiles and the two short aluminum alloy profiles enclose each other, and the walking wheels are arranged at the ends of the long aluminum alloy profiles.

3. The photovoltaic power station fault detection device according to claim 2, characterized in that: The guiding wheel assembly includes an L-shaped support plate, a guiding wheel, a profile nut and a bolt. An installation groove is arranged on the side wall of the long aluminum alloy profile, the profile nut is arranged in the installation groove, and the bolt passes through the L-shaped support plate and is connected to the profile nut to fix the L-shaped support plate to the long aluminum alloy profile. The guiding wheel is arranged on the L-shaped support plate. When the L-shaped support plate is in a certain state, the guiding wheel can alternatively abut against the top side wall of the photovoltaic module or be located above the walking wheels to avoid the walking wheels.

4. The photovoltaic power station fault detection device according to claim 3, characterized in that: A turning seat is arranged at the middle position of the short aluminum alloy profile, and a positioning pin is arranged on the turning seat. The lower end of the support arm is located in the turning seat and is kept in a vertical state by the positioning pin.

5. The photovoltaic power station fault detection device according to claim 4, wherein: A cross arm is arranged at the top of the support arm, and an EL camera mounting plate is arranged at the end of the cross arm. The EL camera assembly is connected to the EL camera mounting plate.

6. The photovoltaic power station fault detection device according to claim 5, characterized in that: A towing hook for towing the base is arranged on the side wall of the short aluminum alloy.

7. The photovoltaic power station fault detection device according to claim 6, characterized in that: An equipment placement plate is arranged on the base on the side away from the turning seat.

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