Waterproof structure of a photovoltaic module frame

Abstract

The utility model relates to photovoltaic power generation technical field, concretely relates to a waterproof structure of photovoltaic module frame, include: support, frame, its one side forms the installation mesa for installing photovoltaic module, rotation drive mechanism is connected between the support and frame, is used for driving the frame rotates around a horizontal axis, makes the frame and photovoltaic module form an inclination, thereby makes the liquid on the frame and photovoltaic module light receiving area accumulation because of gravity and natural slide. The utility model through " first rotation dump, after scraping cleaning " the cooperative work mode, will traditional " passive waterproof " upgrade " active drainage and cleaning ", can quickly, completely remove the ponding and residual droplet, fundamentally avoided the PID effect, hot spot phenomenon and stain accumulation because of long-term ponding, effectively guaranteed the power generation power and long-term durability of component.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and in particular to a waterproof structure for a photovoltaic module frame. Background Technology

[0002] Photovoltaic modules are typically fixed to brackets with aluminum frames and are exposed to the outdoor environment for a long time. The joints between the frame and the photovoltaic module glass, as well as the splicing of adjacent modules, are weak points in waterproofing. Traditionally, static sealing is mainly achieved by sealing strips or glue, and drainage channels or drainage holes are designed on the frame to achieve passive drainage.

[0003] However, the aforementioned existing technologies have significant drawbacks. First, static sealing materials are prone to aging and cracking under long-term ultraviolet radiation, temperature cycling, and wind and rain erosion, leading to sealing failure. Second, passive drainage methods rely entirely on the slope, which can result in poor drainage in installations with small inclination angles or flat roofs. This can easily lead to the accumulation of rainwater and dust in the frame grooves and module edges. This accumulated water can attract dust and form stains, and in severe cases, it can even cause localized hot spots due to the "pond effect," significantly reducing the module's power generation efficiency and lifespan.

[0004] Therefore, there is an urgent need in this field for a frame structure that can actively and efficiently remove water and snow from the surface of photovoltaic modules. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a waterproof structure for the frame of a photovoltaic module to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides a waterproof structure for a photovoltaic module frame, comprising: support; The frame has a mounting surface on one side for mounting photovoltaic modules; A rotation drive mechanism is connected between the bracket and the frame to drive the frame to rotate around a horizontal axis, so that the frame and the photovoltaic module form an angle, thereby causing the liquid accumulated on the light-receiving area of ​​the frame and the photovoltaic module to slide off naturally due to gravity. Scraper parts; A scraping drive mechanism is used to drive the scraper to move along the surface of the photovoltaic module to remove liquid residue on the surface of the photovoltaic module.

[0007] As a preferred embodiment of this utility model, the scraping drive mechanism is a linear drive mechanism, used to drive the scraping component to reciprocate linearly along the edge of the photovoltaic module.

[0008] As a preferred embodiment of this utility model, the linear drive mechanism includes: A slide rail, and a slider slidably disposed in the slide rail, the slider being fixedly connected to the scraping component; A drive motor is located at one end of the slide rail; The lead screw has one end fixedly connected to the output shaft of the drive motor, and the other end extends into the slide groove of the slide rail. The lead screw cooperates with the lead screw groove opened on the surface of the slider.

[0009] As a preferred technical solution of this utility model, the scraping component includes a scraper fixing seat and a scraper mounted thereon, wherein the scraper is composed of at least two detachable scraper units spliced ​​together.

[0010] As a preferred embodiment of this utility model, one end of the scraper fixing seat is formed with a plug, which is engaged with a slot opened at one end of the scraper. A first connecting hole is opened on the surface of the plug, and a second connecting hole corresponding to the first connecting hole is opened on the scraper near the slot. The scraper fixing bolt passes through and connects the second connecting hole and the first connecting hole in sequence to limit the displacement of the scraper relative to the scraper fixing seat. A scraper fixing seat connecting frame for connecting the two is provided between the scraper fixing seat and the slider.

[0011] As a preferred embodiment of this utility model, the rotation drive mechanism includes: A hinge, used to rotatably connect one end of the frame to the bracket; An electric push rod, a first hinge, and a second hinge, wherein the base of the electric push rod is rotatably connected to the bracket via the first hinge; The first movable folding bracket has one end rotatably connected to the bracket via a third hinge, and the other end rotatably connected to the movable rod end of the electric push rod via a second hinge. The second movable folding bracket has one end rotatably connected to the first movable folding bracket via a fourth hinge, and the other end rotatably connected to the frame via a fifth hinge. By extending and retracting the movable rod of the electric push rod, the first and second movable folding brackets can work together to adjust the tilt angle of the frame.

[0012] As a preferred embodiment of this utility model, the structure further includes at least one industrial vibrator, which is disposed below or on the side of the frame. The mechanical vibration generated by the frame weakens the adhesion between snow or ice and the photovoltaic module and the surface of the frame, causing them to loosen and thus facilitating scraping and cleaning.

[0013] As a preferred embodiment of this utility model, multiple industrial vibrators are provided and arranged at intervals along the length of the frame.

[0014] As a preferred technical solution of this utility model, the frame is provided with a plurality of component fixing members, and the component fixing members fix the photovoltaic module to the mounting platform of the frame by the component fixing bolts.

[0015] The beneficial effects of this utility model are: 1. Achieves dynamic active waterproofing and eliminates the risk of water accumulation: This utility model upgrades the traditional "passive waterproofing" to "active drainage and cleaning" through a collaborative working mode of "first rotating and tilting, then scraping and cleaning". It can quickly and thoroughly remove water accumulation and residual droplets, fundamentally avoiding PID effect, hot spot phenomenon and stain accumulation caused by long-term water accumulation, and effectively ensuring the power generation and long-term durability of the components.

[0016] 2. Enhanced environmental adaptability, especially suitable for harsh working conditions: The integrated high-frequency vibrator can effectively break and loosen the combination of snow and ice with the surface of the components. Combined with subsequent dumping and sweeping, it forms a powerful de-icing and snow removal capability, which enables the structure to keep the surface of the components clean even in cold and snowy areas, greatly reducing winter power generation loss and operation and maintenance burden.

[0017] 3. Improved system maintainability and economy: The scraper adopts a modular splicing design, supporting partial replacement, which significantly reduces the cost and complexity of daily maintenance. At the same time, the entire system has a stable structure, reliable drive method, and high degree of automation, reducing the frequency and cost of manual cleaning, resulting in outstanding economic benefits throughout its entire life cycle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top-view three-dimensional structural diagram of the present invention; Figure 3 This is a bottom-view perspective view of the three-dimensional structure of the lower end of this utility model; Figure 4 This is a three-dimensional structural diagram of the frame, photovoltaic module, scraper, and slide rail of this utility model; Figure 5 This is a three-dimensional structural diagram of the scraper fixing seat, scraper, and scraper fixing seat connecting frame of this utility model.

[0020] The components in the diagram are labeled as follows: 1. Bracket; 2. Hinge; 3. Frame; 4. Photovoltaic module; 5. Module fixing component; 6. Module fixing bolt; 7. Electric push rod; 8. First hinge; 9. Second hinge; 10. First movable folding bracket; 11. Third hinge; 12. Fourth hinge; 13. Second movable folding bracket; 14. Fifth hinge; 15. Industrial vibrator; 16. Vibrator fixing bolt; 17. Scraper; 18. Scraper fixing seat; 19. Plug; 20. Slot; 21. First connecting hole; 22. Second connecting hole; 23. Scraper fixing bolt; 24. Slide rail; 25. Slider; 26. Scraper fixing seat connecting frame; 27. Drive motor; 28. Lead screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a waterproof structure for the frame of a photovoltaic module 4 includes: a bracket 1; a frame 3, one side of which has a mounting surface for mounting the photovoltaic module 4; a rotation drive mechanism connected between the bracket 1 and the frame 3, for driving the frame 3 to rotate around a horizontal axis, so that the frame 3 and the photovoltaic module 4 form an angle, thereby causing the liquid accumulated on the light-receiving area of ​​the frame 3 and the photovoltaic module 4 to slide off naturally due to gravity; a scraper; and a scraping drive mechanism for driving the scraper to move along the surface of the photovoltaic module 4 to remove the liquid remaining on the surface of the photovoltaic module 4. The above-mentioned technical solution can solve the technical problems of PID effect, hot spots, and dirt accumulation caused by water accumulation in traditional frame structures that rely on static sealing. Specifically, its working principle is as follows: When water accumulates on the surface of the photovoltaic module 4 due to rainfall or condensation, the rotation drive mechanism is first activated, which drives the frame 3 to rotate around the horizontal axis, thereby making the entire photovoltaic module 4 tilt at a certain angle. At this time, the liquid accumulated in the groove of the frame 3 and the light-receiving area of ​​the photovoltaic module 4 will naturally slide down due to gravity, draining away most of the accumulated liquid. Subsequently, the scraping drive mechanism is activated, driving the scraper to move along the surface of the photovoltaic module 4 to scrape and clean the water film, water droplets, or small debris that remain on the surface after the initial pouring. This realizes the transformation from "passive waterproofing" to "active drainage and cleaning." Through the two-step dynamic process of "pouring first and then scraping clean," the waterproofing and cleaning efficiency is greatly improved, effectively ensuring the power generation efficiency and service life of the photovoltaic module 4.

[0024] Furthermore, in this embodiment, the scraping drive mechanism is a linear drive mechanism, used to drive the scraping component to reciprocate linearly along the edge of the photovoltaic module 4; The above technical solution solves the problems of unstable scraping trajectory, incomplete coverage, or complex structure. Specifically, its working principle is as follows: After receiving the control signal, the linear drive mechanism converts its rotational or linear output into precise linear motion, thereby driving the connected scraping component to perform a smooth, reciprocating linear motion along the edge of the photovoltaic module 4, ensuring that the scraping range covers the entire width or length of the module. This guarantees the thoroughness and consistency of the scraping operation, and the structure is simple, reliable, and easy to automate.

[0025] like Figure 4 As shown, in this embodiment, the linear drive mechanism includes: a slide rail 24, and a slider 25 slidably disposed in the slide rail 24, the slider 25 being fixedly connected to the scraper; a drive motor 27, which is disposed at one end of the slide rail 24; a lead screw 28, one end of which is fixedly connected to the output shaft of the drive motor 27, and the other end of which extends into the slide groove of the slide rail 24, the lead screw 28 cooperating with the lead screw groove formed on the surface of the slider 25; specifically, the slide rail 24 can be fixed to the side of the frame 3 by bolts, and a dust cover, such as a corrugated pipe type protective cover (not shown in the figure), can be provided on the outside of the lead screw 28 and the slide groove of the slide rail 24 to prevent dust and rainwater from entering and to ensure transmission accuracy and service life; The above technical solution can solve the problems of slippage, insufficient precision, and insufficient thrust that may occur in the scraping drive. Specifically, its working principle is as follows: the drive motor 27 starts and drives the lead screw 28 to rotate; since the lead screw 28 cooperates with the lead screw groove in the slider 25, and the slider 25 is confined within the slide rail 24, the rotational motion of the lead screw 28 is converted into the precise linear motion of the slider 25 along the slide rail 24; finally, the scraping component fixed on the slider 25 moves accordingly to perform the scraping task, providing a high-precision, high-rigidity, and high-load-capacity drive with smooth movement and accurate positioning.

[0026] like Figure 5 As shown, in this embodiment, the scraping component includes a scraper fixing seat 18 and a scraper 17 mounted thereon. The scraper 17 is composed of at least two detachable scraper units spliced ​​together. The above-mentioned technical solution solves the problem of high maintenance costs and material waste caused by the need to replace the entire scraper when it is partially damaged, which is a common issue with traditional integrated scrapers. Specifically, its working principle is as follows: During the scraping process, the scraper 17 moves closely to the surface of the photovoltaic module 4 under drive, scraping away residual liquid. When a scraper unit wears or is damaged due to long-term use, it is not necessary to replace the entire scraper 17; only the damaged unit needs to be removed and replaced with a new one. This significantly reduces maintenance costs and downtime, and improves the maintainability and economy of the equipment.

[0027] like Figure 5 As shown, in this embodiment, a plug 19 is formed at one end of the scraper fixing seat 18. The plug 19 is inserted and pulled into the slot 20 opened at one end of the scraper 17. A first connection hole 21 is opened on the surface of the plug 19. The scraper 17 is provided with a second connection hole 22 corresponding to the first connection hole 21 at its position near the slot 20. The scraper fixing bolt 23 passes through and connects the second connection hole 22 and the first connection hole 21 in sequence to limit the displacement of the scraper 17 relative to the scraper fixing seat 18. A scraper fixing seat connecting bracket 26 is provided between the scraper fixing seat 18 and the slider 25 for connecting the two. The above technical solution solves the problems of unreliable scraper connections and cumbersome disassembly and assembly. Specifically, its working principle is as follows: During installation, the slot 20 at the end of the scraper 17 is aligned with the plug 19 on the scraper mounting base 18 and inserted. The plug 19 deforms during insertion and returns to its original shape after reaching its maximum position, aligning the first connecting hole 21 with the second connecting hole 22. Then, the scraper fixing bolt 23 is screwed in and tightened to complete the fixing. Disassembly is performed by reversing the operation. The scraper mounting base 18 is securely connected to the slider 25 through the scraper mounting base connecting bracket 26, realizing a quick-change connection structure that is simple in structure, stable in connection, and convenient in disassembly and assembly, greatly facilitating on-site maintenance operations.

[0028] like Figure 1 and Figure 3As shown, in this embodiment, the rotation drive mechanism includes: a hinge 2, which is used to rotatably connect one end of the frame 3 to the bracket 1; an electric push rod 7, a first hinge 8 and a second hinge 9, the base of the electric push rod 7 and the bracket 1 are rotatably connected through the first hinge 8; a first movable folding bracket 10, one end of which is rotatably connected to the bracket 1 through a third hinge 11, and the other end of which is rotatably connected to the movable rod end of the electric push rod 7 through the second hinge 9; and a second movable folding bracket 13, one end of which is rotatably connected to the first movable folding bracket 10 through a fourth hinge 12, and the other end of which is rotatably connected to the frame 3 through a fifth hinge 14. By extending and retracting the movable rod of the electric push rod 7, the first movable folding bracket 10 and the second movable folding bracket 13 can cooperate to adjust the tilt angle of the frame 3. The length ratio of the first movable folding bracket 10 and the second movable folding bracket 13 and the hinge position are optimized to ensure that the tilt angle of the frame 3 can change smoothly between 0° and 60° within the stroke range of the electric push rod 7, and a stable triangular support structure can be formed in each working position to resist wind load. The above technical solution solves the problem of achieving a large stroke and thrust within a compact space to stably drive the rotation of the heavy photovoltaic module 4. Specifically, its working principle is as follows: when the tilt angle of the frame 3 needs to be adjusted, the movable rod of the electric push rod 7 extends or retracts, pushing or pulling the first movable folding bracket 10 through the second hinge 9; the first movable folding bracket 10 drives the second movable folding bracket 13 to move through the fourth hinge 12, and then lifts or lowers the frame 3 through the fifth hinge 14, achieving its rotation around the hinge 2. The multi-stage hinged folding bracket amplifies the stroke of the electric push rod 7, providing a strong driving force and ensuring the smoothness and reliability of the tilt angle adjustment process of the frame 3.

[0029] like Figure 3 As shown, in this embodiment, the structure also includes at least one industrial vibrator 15, which is disposed below or on the side of the frame 3. The industrial vibrator 15 weakens the adhesion between snow or ice and the photovoltaic module 4 and the surface of the frame 3 by mechanical vibration generated by the frame 3, so that it is loosened and thus facilitates scraping and cleaning. The above-mentioned technical solution can solve the problem that simply relying on tilting and scraping is insufficient to effectively remove firmly adhered ice and snow. Specifically, its working principle is as follows: when snow or ice accumulates on the surface of the photovoltaic module 4, the industrial vibrator 15 is activated before or simultaneously with the start of the rotation drive mechanism and the scraping mechanism. The high-frequency mechanical vibration generated by the industrial vibrator 15 is transmitted to the entire photovoltaic module 4 through the frame 3, which can effectively weaken the adhesion between the ice and snow and the module surface, causing it to crack or loosen from the interface. Through the synergistic mechanism of "loosening-slipping-scraping," the efficiency and ability of the system to remove ice and snow in severe winters are significantly improved. It is important to note that the vibration in this application is not "destructive" but "cleaning." Its purpose is not to create powerful vibrations that could shatter the photovoltaic module 4, but rather to use high-frequency, low-amplitude micro-vibrations to disrupt the surface tension of water and the electrostatic attraction of dust, allowing them to slide off more easily under gravity. Therefore, a low-power, high-frequency industrial vibrator 15 can be selected, generating enough force to shake off the accumulated material, but far below the strength limits of the photovoltaic module 4 and its frame. For example, a small high-frequency vibration motor with a frequency of 50Hz-200Hz and an excitation force in the range of 100N-500N can be used. Its installation position and fixing method ensure that the vibration acceleration transmitted to the photovoltaic module 4 is less than 3g (which can be adjusted according to experimental data). This value is far lower than the acceleration requirement for vibration testing in photovoltaic module standards (such as IEC61215) (usually above 10g), thus ensuring that the module will not be damaged. Furthermore, the photovoltaic module 4 and its frame 3 have inherently high structural strength. This is because the photovoltaic module 4 undergoes rigorous mechanical load testing before leaving the factory, including static load tests simulating wind and snow pressure, and vibration tests simulating transportation and installation conditions. This means they inherently possess a certain resistance to mechanical stress. In addition, the industrial vibrator 15 should not be directly installed on the photovoltaic module 4. The optimal location is on the aluminum frame 3, preferably in the middle of the long side of the frame 3. The frame, being a metal structural component, is an ideal carrier for transmitting and dispersing vibration. High-strength vibrator fixing bolts 16 are used to firmly secure the vibrator motor to the frame, avoiding additional collisions and noise. If necessary, flexible gaskets can also be added between the vibrator motor and the frame to filter out some potentially harmful high-frequency harmonics, allowing for a more "gentle" transmission of vibration.

[0030] like Figure 3 As shown, in this embodiment, multiple industrial vibrators 15 are provided and arranged at intervals along the length direction of the frame 3. The above technical solution solves the problem of limited effective range of a single vibrator, which may lead to incomplete snow and ice removal in localized areas of the photovoltaic module. Specifically, its working principle is as follows: multiple industrial vibrators 15 can be started simultaneously or sequentially under the command of a controller, thereby forming a uniform and efficient vibration wave coverage across the entire area of ​​the photovoltaic module 4, avoiding vibration dead zones. This ensures that regardless of where the snow or ice is located on the module, it receives effective vibration force, thus achieving comprehensive and thorough cleaning.

[0031] like Figure 4As shown, in this embodiment, the frame 3 is provided with multiple component fixing members 5. The component fixing members 5 fix the photovoltaic module 4 to the mounting platform of the frame 3 by the component fixing bolts 6. Specifically, the mounting platform of the frame 3 is a horizontally extending flange, on which a buffer pad can be provided. The component fixing member 5 is an L-shaped pressure block, one side of which is locked to the side wall of the frame 3 by the component fixing bolts 6, and the other side is pressed against the glass surface of the photovoltaic module 4. The above technical solution can solve the safety hazards of possible displacement, loosening or falling off of photovoltaic module 4 during rotation and vibration. Specifically, its working principle is as follows: during installation, photovoltaic module 4 is placed on the mounting platform of frame 3, and then the module fixing bolt 6 is passed through the module fixing member 5 and tightened to generate the specified clamping force, thereby reliably fixing the module and ensuring the structural stability and safety of photovoltaic module 4 throughout the dynamic waterproof cleaning process.

[0032] This invention also includes a PLC or microcontroller. The signal input terminal of the controller is connected to a humidity sensor / rain sensor / weight sensor (for detecting water or snow accumulation), and its signal output terminal is electrically connected to the power circuit of the electric push rod 7, the drive motor 27, and the industrial vibrator 15, respectively.

[0033] The controller is programmed to operate according to the following logic: A. Receive sensor signals and start the workflow when the amount of water or snow accumulation exceeds the preset threshold; B. Optionally, first start the industrial vibrator 15 to work for a period of time (e.g., 10-30 seconds) to loosen the ice and snow; C. Control the electric push rod 7 to extend and drive the frame 3 to rotate to the first tilt angle (e.g., 35°), so that most of the liquid and loose ice and snow slide off; D. Start the drive motor 27 to drive the scraper to reciprocate along the surface of the photovoltaic module 4 once or multiple times; E. Control the electric push rod 7 to extend and retract further, possibly accompanied by the scraper working again to find the optimal drainage angle; F. After all actions are completed, the controller resets each mechanism.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0035] This utility model aims to cover all such substitutions, modifications, and variations that fall within its protection scope. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within its protection scope.

Claims

1. A waterproof structure for a photovoltaic module frame, characterized in that, include: Support (1); The frame (3) has a mounting surface on one side for mounting photovoltaic modules (4); A rotation drive mechanism is connected between the bracket (1) and the frame (3) to drive the frame (3) to rotate around a horizontal axis, so that the frame (3) and the photovoltaic module (4) form an angle, so that the liquid accumulated on the light-receiving area of ​​the frame (3) and the photovoltaic module (4) will naturally slide off due to gravity. Scraper parts; A scraping drive mechanism is used to drive the scraper to move along the surface of the photovoltaic module (4) to remove liquid residue on the surface of the photovoltaic module (4).

2. The waterproof structure of the photovoltaic module frame according to claim 1, characterized in that, The scraping drive mechanism is a linear drive mechanism, used to drive the scraping component to reciprocate linearly along the edge of the photovoltaic module (4).

3. The waterproof structure of the photovoltaic module frame according to claim 2, characterized in that, The linear drive mechanism includes: The slide rail (24) and the slider (25) slidably disposed in the slide rail (24), the slider (25) being fixedly connected to the scraper; A drive motor (27) is disposed at one end of the slide rail (24); The lead screw (28) has one end fixedly connected to the output shaft of the drive motor (27) and the other end extends into the groove of the slide rail (24). The lead screw (28) cooperates with the lead screw groove opened on the surface of the slider (25).

4. The waterproof structure of the photovoltaic module frame according to claim 3, characterized in that, The scraping component includes a scraper mounting base (18) and a scraper (17) mounted thereon, the scraper (17) being composed of at least two detachable scraper units joined together.

5. The waterproof structure of the photovoltaic module frame according to claim 4, characterized in that, One end of the scraper fixing seat (18) is formed with a plug (19), which is plugged into and out of a slot (20) opened at one end of the scraper (17). A first connection hole (21) is opened on the surface of the plug (19). The scraper (17) is provided with a second connection hole (22) corresponding to the first connection hole (21) near the slot (20). The scraper fixing bolt (23) passes through and connects the second connection hole (22) and the first connection hole (21) in sequence to limit the displacement of the scraper (17) relative to the scraper fixing seat (18). A scraper fixing seat connecting frame (26) is provided between the scraper fixing seat (18) and the slider (25) for connecting the two.

6. The waterproof structure of the photovoltaic module frame according to claim 1, characterized in that, The rotation drive mechanism includes: Hinges (2) are used to rotatably connect one end of the frame (3) to the bracket (1); Electric push rod (7), first hinge (8) and second hinge (9), the base of the electric push rod (7) and the bracket (1) are rotatably connected by the first hinge (8); The first movable folding bracket (10) has one end rotatably connected to the bracket (1) via a third hinge (11), and the other end rotatably connected to the movable rod end of the electric push rod (7) via a second hinge (9). The second movable folding bracket (13) has one end rotatably connected to the first movable folding bracket (10) via a fourth hinge (12), and the other end rotatably connected to the frame (3) via a fifth hinge (14). By extending and retracting the movable rod of the electric push rod (7), the first movable folding bracket (10) and the second movable folding bracket (13) can work together to adjust the tilt angle of the frame (3).

7. The waterproof structure of the photovoltaic module frame according to any one of claims 1 to 6, characterized in that, The structure also includes at least one industrial vibrator (15) which is located below or on the side of the frame (3) and uses mechanical vibration generated by the frame (3) to weaken the adhesion of snow or ice to the photovoltaic module (4) and the surface of the frame (3), thereby loosening it and making it easier to scrape and clean.

8. The waterproof structure of the photovoltaic module frame according to claim 7, characterized in that, Multiple industrial vibrators (15) are provided and are spaced apart along the length of the frame (3).

9. The waterproof structure of the photovoltaic module frame according to claim 1, characterized in that, The frame (3) is provided with multiple component fixing members (5), and the component fixing members (5) fix the photovoltaic module (4) to the mounting platform of the frame (3) by the component fixing bolts (6).

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