Photovoltaic array inspection tool
By designing a photovoltaic square array inspection tool including telescopic vibration rod and vibration sensor, the problem of easy loosening of the photovoltaic square array tightening bolts and difficult inspection is solved, and fast and accurate bracket loosening detection is achieved, and safety and inspection efficiency are improved.
Patent Information
- Application Number
- CN202421967907.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-14
AI Technical Summary
During the long-term use of photovoltaic arrays outdoors, due to vibration caused by strong winds, some of the fastening bolts are prone to loosening, resulting in a safe operation risk. On-site inspection is difficult, especially the upper part of the high-prescription array is inconvenient, and the bolt looseness cannot be accurately judged by visual inspection.
A photovoltaic square array inspection tool is designed, including a detection rod, a telescopic vibration rod, a engaging claw, a vibration source, a second detection rod body, an adsorption magnet and a vibration sensor. The telescopic vibration rod applies the set vibration frequency to the transverse purlins on the photovoltaic bracket, and use the vibration sensor to detect the vibration frequency in other parts of the bracket to determine whether the bracket is loose.
This tool can quickly and accurately determine whether the photovoltaic bracket is loose, reducing the difficulty of inspection, and is especially suitable for inspection on the upper part of the high-prescription matrix, improving safety and inspection efficiency.
Smart Images
Figure CN223021511U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary tools for photovoltaic power stations, in particular to a photovoltaic array inspection tool. Background Technique
[0002] A direct current power generation unit formed by assembling a number of photovoltaic modules mechanically and electrically in a certain manner and having a fixed support structure is also called a photovoltaic array.
[0003] The photovoltaic array is in the outdoor natural environment for a long time. Affected by the vibration caused by strong winds, some fastening bolts of the array are prone to loosen, thus causing safety operation risks. According to the regulations, it is advisable to conduct a comprehensive inspection of the foundation, support and grounding grid of the photovoltaic array every three months. Therefore, it is particularly important to timely and effectively check the overall stability of the array, detect the loosening of bolts, and complete defect elimination. There are numerous photovoltaic arrays at each photovoltaic project site. There are often thousands of photovoltaic arrays, which brings great difficulties to on-site inspection. Moreover, according to different designs, the heights of the photovoltaic arrays in each photovoltaic project vary greatly. For some projects, the arrays are relatively low and the inspection is relatively convenient. For some projects, the arrays are relatively high, and it is very inconvenient to inspect the upper part of the arrays. And relying only on visual inspection generally has poor effects and cannot accurately judge the loosening of the bolts of the array. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to provide a photovoltaic array inspection tool that can quickly judge whether the photovoltaic support is loose and is convenient to carry.
[0005] To solve the above technical problem, the technical solution adopted by the utility model is:
[0006] A photovoltaic array inspection tool includes a detection rod. An expandable vibration rod connected in a sliding manner is arranged inside the detection rod. The expandable vibration rod can expand and slide in the vertical direction. A clamping claw is arranged at the top of the expandable vibration rod. A vibration source fixed to the expandable vibration rod is arranged below the clamping claw. A second detection rod body is embedded in the lower part of the detection rod. The expandable vibration rod is used to apply a set vibration frequency to the transverse purlin on the photovoltaic panel to be detected, and judge whether the whole photovoltaic support is loosened by detecting the vibration frequency of other parts through the second detection rod body.
[0007] The front end of the above-mentioned clamping claw is provided with a clamping claw body extending downward. An engaging groove is arranged inside the clamping claw body, and the size of the engaging groove matches that of the transverse purlin.
[0008] The front end of the above-mentioned second detection rod body is provided with an adsorption magnet, and a vibration sensor is arranged on the adsorption magnet.
[0009] On the above-mentioned transverse purlin or on the connecting rod connected to the transverse purlin, a fixed-point magnetic block is arranged, and the fixed-point magnetic block is used for adsorbing and fixing with the adsorption magnet.
[0010] The above-mentioned detection rod is provided with a controller, and the output of the controller acts on the vibration source to generate vibration at a set frequency.
[0011] The above-mentioned vibration sensor is electrically connected to the input end of the controller.
[0012] The above-mentioned detection rod is also provided with a digital display device and a status display lamp for displaying the vibration detection situation of the photovoltaic support.
[0013] A photovoltaic array inspection tool provided by the present utility model acts on the transverse purlin on the photovoltaic support through a telescopic vibration rod body, and then uses a magnetic vibration sensor to detect the vibration frequency of the support or other parts of the support. If the vibration frequency is inconsistent with the output frequency or is chaotic, it indicates that the support has become loose. The telescopic and embedded sensor rod body design makes the tool very convenient to carry and suitable for use in photovoltaic power stations. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The following further describes the present utility model in conjunction with the drawings and embodiments:
[0015] Figure 1 is the front view of the photovoltaic array inspection tool of the present utility model;
[0016] Figure 2 is the schematic diagram of taking out the detection rod;
[0017] Figure 3 is the structural schematic diagram of the detection rod;
[0018] Figure 4 is the side view of the photovoltaic array inspection tool;
[0019] Figure 5 is the schematic diagram of the vibration source;
[0020] Figure 6 is the schematic diagram of the inspection tool acting on the photovoltaic support in the embodiment;
[0021] Figure 7 is the electrical schematic diagram of this tool.
[0022] In the figure: detection rod 1, telescopic vibration rod 2, vibration source 3, engaging claw 4, engaging claw body 41, fitting groove 42, storage groove 5, second detection rod body 6, detection body 7, adsorption magnet 71, vibration sensor 72, photovoltaic panel 8, transverse purlin 9, connecting rod 10, fixed point magnetic block 11, photovoltaic column 12, digital display device 13, status display lamp 14. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] As Figures 1-6As shown in the figure, a photovoltaic array inspection tool includes a detection rod 1. Inside the detection rod 1, there is a telescopic vibration rod 2 connected in a sliding manner. The telescopic vibration rod 2 can telescopically slide in the vertical direction. At the top of the telescopic vibration rod 2, there is a clamping claw 4. Below the clamping claw 4, there is a vibration source 3 fixed to the telescopic vibration rod 2. The lower part of the detection rod 1 is embedded with a second detection rod body 6. The telescopic vibration rod 2 is used to apply a set vibration frequency to the transverse purlin 9 on the photovoltaic panel 8 to be detected, and the second detection rod body 6 is used to detect the vibration frequencies of other parts to determine whether the overall photovoltaic support is loosened.
[0024] At the front end of the above-mentioned clamping claw 4, there is a clamping claw body 41 extending downward. Inside the clamping claw body 41, there is a fitting groove 42, and the size of the fitting groove 42 matches that of the transverse purlin 9.
[0025] At the front end of the above-mentioned second detection rod body 6, there is an adsorption magnet 71, and a vibration sensor 72 is provided on the adsorption magnet 71.
[0026] On the above-mentioned transverse purlin 9 or on the connecting rod 10 connected to the transverse purlin 9, there is a fixed-point magnetic block 11, and the fixed-point magnetic block 11 is used to adsorb and fix with the adsorption magnet 71.
[0027] Inside the above-mentioned detection rod 1, there is a controller, and the output of the controller acts on the vibration source 3 to generate vibrations with a set frequency.
[0028] The above-mentioned vibration sensor 72 is electrically connected to the input end of the controller.
[0029] The above-mentioned detection rod 1 is also provided with a digital display device 13 and a status display lamp 14, which are used to display the vibration detection situation of the photovoltaic support.
[0030] As Figure 6 and 7As shown in the figure, the working principle of the utility model is that the vibration frequency is set in the controller U10. When necessary, a button can also be set on the detection rod 1 to set the vibration frequency to avoid the natural frequency of the photovoltaic support and prevent resonance. The controller U10 sends the converted frequency digital signal to the power amplifier U2 of the vibration source 3, and the power amplifier U2 controls the vibration source 3 to output the set vibration frequency. Before vibration, the telescopic vibration rod 2 is extended, and the clamping claw 4 is connected to the transverse purlin 9. The transverse purlin 9 is embedded in the fitting groove 42, and the detection rod 1 is pulled downward to act on the transverse purlin 9, so that the transverse purlin 9 and the detection rod 1 vibrate as a whole. The adsorption magnet 71 is adsorbed on the fixed-point magnetic block 11. Then, the vibration source 3 is turned on, and the vibration frequency of the support or the connecting rod 10 is detected by the vibration sensor 72. If the difference between the detected vibration frequency and the set frequency exceeds the threshold range or the vibration frequency is a synthesis of multiple chaotic vibrations, the photovoltaic support has a loosening phenomenon, and the detected value will be displayed on the digital display device 13, and the status display light 14 will display red to indicate that the support has loosened.
Claims
1. A photovoltaic array inspection tool, characterized in that: The invention comprises a detection rod (1), wherein a slidably connected telescopic vibration rod (2) is provided inside the detection rod (1), the telescopic vibration rod (2) can be telescopically slidable in a vertical direction, a clamping claw (4) is provided at the top of the telescopic vibration rod (2), a vibration source (3) fixed to the telescopic vibration rod (2) is provided below the clamping claw (4), a second detection rod body (6) is embedded in the lower part of the detection rod (1), the telescopic vibration rod (2) is used to apply a set vibration frequency to a transverse purlin (9) on a photovoltaic panel (8) to be detected, and the vibration frequency of other parts is detected by the second detection rod body (6) to judge whether the photovoltaic support as a whole is loose.
2. A photovoltaic array inspection tool according to claim 1, characterized in that: The front end of the locking claw (4) is provided with a locking claw body (41) extending downwards, and the locking claw body (41) is provided with an engaging groove (42), and the size of the engaging groove (42) matches the horizontal purlin (9).
3. A photovoltaic array inspection tool according to claim 2, characterized in that: The front end of the second detection rod (6) is provided with an adsorption magnet (71), and the adsorption magnet (71) is provided with a vibration sensor (72).
4. A photovoltaic array inspection tool according to claim 3, characterized in that: A fixed point magnetic block (11) is provided on the transverse purlin (9) or on a connecting rod (10) connected to the transverse purlin (9). The fixed point magnetic block (11) is used to be adsorbed and fixed to the adsorption magnet (71).
5. A photovoltaic array inspection tool according to claim 4, characterized in that: The detection rod (1) is provided with a controller, and the output of the controller acts on the vibration source (3) to generate vibration of a set frequency.
6. A photovoltaic array inspection tool according to claim 5, characterized in that: The vibration sensor (72) is electrically connected to the input end of the controller.
7. A photovoltaic array inspection tool according to claim 6, characterized in that: The detection rod (1) is also provided with a digital display device (13) and a status display light (14) for displaying the vibration detection status of the photovoltaic support.