Photovoltaic panel water accumulation self-cleaning device

Abstract

The present application relates to a kind of photovoltaic panel water self-cleaning device, including mounting frame body, mounting frame body is installed in the frame of photovoltaic panel side bottom, mounting frame body includes top plate, vertical plate and elastic lock tongue structure connected in turn, top plate and elastic lock tongue structure are respectively connected and arranged in the upper end and lower end of photovoltaic panel, top plate is equipped with drainage groove, vertical plate is equipped with drainage groove with drainage groove intercommunication.It is also equipped with auxiliary guide groove on top plate, auxiliary guide groove is set in the side of top plate close to photovoltaic panel bottom, vertical plate is correspondingly equipped with auxiliary water guide groove with auxiliary guide groove intercommunication, and drainage member is arranged in auxiliary guide groove.A kind of photovoltaic panel water self-cleaning device of the present application, simple structure, convenient to use, and drainage efficiency is high, can effectively drain the water and silt on photovoltaic panel, while also can avoid interference with other photovoltaic panel maintenance equipment.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel water removal equipment, and in particular to a self-cleaning device for photovoltaic panels. Background Technology

[0002] In existing photovoltaic power plants, after routine cleaning or rain exposure, water can accumulate along the bottom edge of the photovoltaic panels. This water weakens sunlight, causing a sudden drop in localized power generation, leading to localized high temperatures and potentially causing solar flares that damage the silicon crystals of the photovoltaic panels. In severe cases, it can even burn through the panels, causing a fire and paralyzing the entire power plant, resulting in significant economic losses and severe environmental pollution.

[0003] Currently, a water guide clip is typically installed at the bottom edge of the photovoltaic panel to drain accumulated water using the siphon principle, which provides some drainage. However, once the water on the photovoltaic panel is mostly drained, the siphon effect weakens or disappears, meaning the current water guide clips cannot completely drain the water, leaving residual water and sediment on the panel. Furthermore, since the water guide clips are installed at the bottom edge of the photovoltaic panel, cleaning or routine maintenance requires the cleaning or other maintenance equipment to use the top and bottom edges of the panel as guide rails. The installation of the water guide clips in this situation hinders the movement of the cleaning equipment. Not removing the water guide clips risks damaging the equipment, while removing them creates operational difficulties and increases the difficulty of cleaning. Therefore, the current water guide clips are not convenient to use. Summary of the Invention

[0004] Therefore, it is necessary to provide a self-cleaning device for photovoltaic panels to address the above problems. This device has a simple structure, is easy to use, and has high drainage efficiency. It can effectively drain the water and sediment from the photovoltaic panels and avoid interference with other photovoltaic panel maintenance equipment.

[0005] The technical solution is as follows:

[0006] On the one hand, a self-cleaning device for water accumulation on photovoltaic panels is provided, including a mounting frame that is snapped onto a frame at the bottom side of the photovoltaic panel. The mounting frame includes a top plate, a vertical plate, and an elastic locking tongue structure connected in sequence. The top plate and the elastic locking tongue structure are respectively connected to the upper and lower ends of the photovoltaic panel. The top plate is provided with a drainage groove, and the vertical plate is provided with a drainage groove communicating with the drainage groove.

[0007] The top plate is also provided with an auxiliary flow guide channel, which is located on the side of the top plate near the bottom of the photovoltaic panel. The vertical plate is provided with an auxiliary water guide channel that communicates with the auxiliary flow guide channel. The auxiliary flow guide channel is provided with a flow diversion component.

[0008] The technical solution will be further explained below:

[0009] In one embodiment, two mounting frames are provided, and the two mounting frames are connected by an adjustable connector.

[0010] In one embodiment, the connector includes a first support and a second support. The first support includes a first bracket and a connecting frame. The first bracket is V-shaped, and one end of the connecting frame is connected to the middle of one end of the V-shaped opening of the first bracket. The second support includes a second bracket that is slidably connected to the connecting frame. The second bracket is V-shaped, and a groove for slidably connecting to the connecting frame is provided in the middle of the second bracket.

[0011] In one embodiment, the connecting frame is provided with locking teeth, and the slide groove is provided with locking protrusions that engage unidirectionally with the locking teeth.

[0012] In one embodiment, the V-shaped opening of the second bracket is positioned opposite to the V-shaped opening of the first bracket.

[0013] In one embodiment, the auxiliary guide channel includes a water guide channel and a mud guide channel that are interconnected, the water guide channel being disposed above the mud guide channel, and the guide member being disposed within the water guide channel.

[0014] In one embodiment, the width of the connection between the water intake channel and the mud intake channel is less than the maximum width of the water intake channel.

[0015] In one embodiment, the width of the auxiliary water guide channel is greater than the width of the auxiliary flow guide channel, and the interface connecting the auxiliary water guide channel and the auxiliary flow guide channel is vertically arranged.

[0016] In one embodiment, the top plate includes a first end and a second end, the height of the first end being lower than the height of the second end, the bottom of the first end abutting against the top surface of the photovoltaic panel, and the bottom of the second end abutting against the top surface of the frame at the edge of the photovoltaic panel.

[0017] In one embodiment, the bottom of the vertical plate is connected to a base plate, and the elastic locking tongue structure is disposed on the base plate.

[0018] The beneficial effects of this invention are:

[0019] Compared with existing technologies, the photovoltaic panel water self-cleaning device of the present invention uses a mounting frame top plate and an elastic locking tongue structure to snap onto the frame at the bottom side of the photovoltaic panel. Through the drainage channels on the top plate and the drainage channels on the vertical plate, it can effectively remove water and sediment from the photovoltaic panel. Simultaneously, it avoids the mounting frame interfering with the cleaning operation when cleaning the photovoltaic panel.

[0020] In conventional designs, photovoltaic (PV) panels are typically installed at an angle, generally at a certain angle to the horizontal plane. PV panels are generally rectangular panels with frames parallel to the sides and also at an angle to the horizontal. Traditional water guide clips are attached to the bottom frame edge of the PV panel. During water drainage, as water flows downwards, it flows along the edges of the clips and bottom frame. This water flow, similarly, is at an angle relative to the horizontal plane, creating resistance between the clips and the frame and affecting drainage efficiency. In this invention, however, after the mounting frame is attached to the side frame of the PV panel, the vertical plate remains vertical. This ensures that during water drainage and sludge removal, the water flowing through the drainage channels on the vertical plate is vertically downwards, reducing the resistance from the vertical plate and frame and improving drainage efficiency.

[0021] Furthermore, auxiliary drainage channels and auxiliary water channels are respectively provided on the top plate and the vertical plate near the bottom of the photovoltaic panel. When the water on the photovoltaic panel is drained to a certain extent, the siphon effect weakens, and it becomes difficult to completely remove the water and sediment through the drainage channels. In actual operation, the opening size of the auxiliary drainage channel is set between 2mm and 4mm. Thus, when the siphon effect of the drainage channels in this device weakens, a capillary effect can be generated through the auxiliary drainage channels to draw the water and sediment from the auxiliary drainage channels and discharge them through the auxiliary water channels. The drainage components are hydrophilic, and the hydrophilic drainage components in the auxiliary drainage channels achieve a water absorption effect, enhancing the capillary effect of the auxiliary drainage channels and effectively discharging the remaining small amount of water through the auxiliary drainage channels, improving the overall drainage effect, ensuring that the water and sediment on the photovoltaic panel are completely removed, and effectively preventing water and sediment residue. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a self-cleaning device for water accumulation on a photovoltaic panel in one embodiment;

[0025] Figure 2 This is a right view of a photovoltaic panel water self-cleaning device in one embodiment;

[0026] Figure 3 This is a three-dimensional structural diagram of a photovoltaic panel water self-cleaning device in another embodiment;

[0027] Figure 4 This is a front structural schematic diagram of a photovoltaic panel water accumulation self-cleaning device in another embodiment;

[0028] Figure 5 This is a three-dimensional structural schematic diagram of a self-cleaning device for water accumulation on a photovoltaic panel in yet another embodiment;

[0029] Figure 6 This is a three-dimensional structural schematic diagram of a self-cleaning device for water accumulation on a photovoltaic panel in yet another embodiment;

[0030] Figure 7 This is a schematic diagram of the connector structure in one embodiment;

[0031] Figure 8 This is a schematic diagram of the top plate in one embodiment;

[0032] Figure 9 This is a cross-sectional view of the drainage channel and the drain channel in one embodiment;

[0033] Figure 10 for Figure 9 Enlarged structural diagram of section A

[0034] Figure 11 This is a schematic diagram of the auxiliary flow channel and auxiliary water channel in one embodiment;

[0035] Figure 12 for Figure 11 A magnified structural diagram of section B.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Mounting frame; 110. Top plate; 110a. First end; 110b. Second end; 111. Drainage channel; 112. Auxiliary drainage channel; 1121. Water channel; 1122. Mud channel; 120. Vertical plate; 121. Drainage channel; 122. Auxiliary water channel; 130. Base plate; 131. Elastic locking tongue structure; 200. Connector; 200a. Rectangular block; 210. First support; 211. First bracket; 212. Connecting frame; 2121. Locking tooth; 213. Limiting plate; 220. Second support; 221. Second bracket; 222. Slide groove; 300. Photovoltaic panel; 310. Frame. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," "fourth," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "fixation," and "tightly fitting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] like Figures 1 to 12As shown, in one embodiment, a self-cleaning device for water accumulation on a photovoltaic panel is provided, including a mounting frame 100. The mounting frame 100 is snapped onto the bottom of the side frame 310 of the photovoltaic panel 300. The mounting frame 100 includes a top plate 110, a vertical plate 120, and an elastic locking tongue structure 131 connected in sequence. The top plate 110 and the elastic locking tongue structure 131 are respectively connected to the upper and lower ends of the photovoltaic panel 300. The top plate 110 is provided with a drainage channel 111, and the vertical plate 120 is provided with a drainage channel 121 communicating with the drainage channel 111. The top plate 110 is also provided with an auxiliary drainage channel 112, which is located on the side of the top plate 110 near the bottom of the photovoltaic panel 300. The vertical plate 120 is correspondingly provided with an auxiliary water guiding channel 122 communicating with the auxiliary drainage channel 112. The auxiliary drainage channel 112 is provided with a hydrophilic drainage component.

[0042] In this embodiment, the top plate 110 of the mounting frame 100 and the elastic locking tongue structure 131 are snapped onto the frame 310 at the bottom side of the photovoltaic panel 300. Water accumulation on the photovoltaic panel 300 is effectively drained through the drainage channel 111 on the top plate 110 and the drainage channel 121 on the vertical plate 120. In actual operation, by micro-roughening the inner walls of the drainage channel 111 and the drainage channel 121, the surfaces of the drainage channel 111 and the drainage channel 121 facing the water are made hydrophilic, thereby improving the water absorption performance of the drainage channel 111 and the drainage performance of the drainage channel 121. Simultaneously, this also avoids interference between the mounting frame 100 and the cleaning device during the cleaning of the photovoltaic panel 300.

[0043] In conventional designs, photovoltaic panels 300 are typically installed at an angle, generally with a certain tilt relative to the horizontal plane. Since photovoltaic panels 300 are generally rectangular plate structures, the edges of the frame 310 of the photovoltaic panel 300 are also parallel to the sides of the photovoltaic panel 300, and the edges of the frame 310 are also tilted at a certain angle relative to the horizontal plane. Traditional water guide clips are attached to the edges of the bottom frame 310 of the photovoltaic panel 300. When water is being drained, the accumulated water flows downwards along the edges of the water guide clips and the bottom frame 310. At this time, the water flow is also tilted at a certain angle relative to the horizontal plane, resulting in resistance to the water flow from the water guide clips and the frame 310, thus affecting drainage efficiency. In this embodiment, after the mounting frame 100 is engaged with the side frame 310 of the photovoltaic panel 300, the vertical plate 120 remains vertical. This ensures that during the water guiding and mud removal process, the water flow direction through the drainage channel 121 on the vertical plate 120 is vertically downward, reducing the resistance of the vertical plate 120 and frame 310 to the water flow and improving drainage efficiency.

[0044] Furthermore, auxiliary guide channels 112 and auxiliary water guide channels 122 are respectively provided on the top plate 110 and the vertical plate 120 near the bottom of the photovoltaic panel 300. When the water on the photovoltaic panel 300 is drained to a certain extent, the siphon effect weakens, and it becomes difficult to completely drain the water through the guide channel 111. In actual operation, the opening size of the auxiliary guide channel 112 is set between 2mm and 4mm. Thus, when the siphon effect of the guide channel 111 in this device weakens, a capillary effect can be generated through the auxiliary guide channel 112 to draw water and sediment from the auxiliary guide channel 112 and discharge them through the auxiliary water guide channel 122. The drainage component is hydrophilic, and the hydrophilic drainage component in the auxiliary drainage channel 112 achieves the water absorption effect, thereby enhancing the capillary effect of the auxiliary drainage channel 112 and effectively draining the remaining small amount of water through the auxiliary drainage channel 112 and the auxiliary water channel 122, improving the overall drainage effect, ensuring that the water on the photovoltaic panel 300 is completely drained, and effectively avoiding water residue.

[0045] In practical operation, the drainage component can be made of a hydrophilic material to give it good hydrophilicity and water absorption capacity, enhancing the capillary effect and thus improving the overall drainage performance of the device. Alternatively, similar to the design of the drainage channel 111 and drainage channel 121, the hydrophilicity of the drainage component can also be achieved by improving the surface roughness of the material, so that the surface of the drainage component in contact with the accumulated water is hydrophilic. Of course, in other embodiments, drainage components of other structures or materials can also be used, as long as the drainage component is hydrophilic and can enhance the capillary effect of the auxiliary guide pipe 112 and improve its water absorption capacity. Such designs are all within the scope of protection of this invention.

[0046] In one embodiment, a base plate 130 is connected to the bottom of the vertical plate 120. An elastic locking tongue structure 131 is mounted on the base plate, engaging with the bottom of the frame 310 at the edge of the photovoltaic panel 300 via the base plate 120, and securing the frame 310 with the elastic locking tongue structure 131. Typically, installation process holes are pre-drilled at the lower edge of the existing photovoltaic panel frame 310. The elastic locking tongue structure 131 is adapted to these holes for engagement, making operation simple and convenient. Furthermore, compared to traditional snap-fit ​​structures that directly engage with the frame 310, the engagement reliability is higher. Of course, in some unconventional designs where the photovoltaic panel frame 310 does not have pre-drilled installation process holes, the elastic locking tongue structure 131 can also engage with the edge of the photovoltaic panel frame 310, or clamp onto the photovoltaic panel frame 310 using the elastic force of the elastic locking tongue structure 131, ensuring the overall device is securely installed.

[0047] Hey Figures 3 to 7As shown, in one embodiment, two mounting frames 100 are provided, connected by an adjustable connector 200. One end of the connector 200 is connected to the back of the vertical plate 120 of one mounting frame 100, and the other end is connected to the back of the vertical plate 120 of the other mounting frame 100. The two mounting frames 100 are mirror-symmetrical about the central axis of the connector 200. In a typical photovoltaic panel 300 matrix, several photovoltaic panels 300 are placed side by side. By connecting the two mounting frames 100 together, water guiding and mud removal operations can be performed on two photovoltaic panels 300 simultaneously, which is simple and convenient. In actual operation, the two mounting frames 100 and the connector 200 can be integrally injection molded, improving the convenience of production and manufacturing.

[0048] Of course, in other embodiments, the connector 200 can also be connected to the side of the vertical plate 120 of the two mounting frames 100, or to other positions of the mounting frames 100, as long as the two mounting frames 100 are mirror-symmetrically arranged and respectively snapped onto the two photovoltaic panels 300 on both sides, so as to realize the operation of drainage of the two photovoltaic panels 300 at the same time. Such designs are all within the protection scope of the present invention.

[0049] In one embodiment, the connector 200 includes a first support 210 and a second support 220. The first support 210 includes a first bracket 211 and a connecting frame 212. The first bracket 211 is V-shaped, and one end of the connecting frame 212 is connected to the middle of the V-shaped opening of the first bracket 211. The second support 220 includes a second bracket 221 that is slidably connected to the connecting frame 212. The second bracket 221 is V-shaped, and a groove 222 for slidably connecting to the connecting frame 212 is provided in the middle of the second bracket 221. Specifically, the first bracket 211 and the second bracket 221 are made of elastic material. Generally, the spacing between two adjacent photovoltaic panels 300 is designed with a standard distance, but errors may occur in actual operation. At this time, by adjusting the second bracket 221 to slide on the connecting frame 212, the V-shaped openings of the first bracket 211 and the second bracket 221 open or close. The first bracket 211 and the second bracket 221 push the mounting frame 100 on both sides to move relative to each other to adapt to the spacing between two adjacent photovoltaic panels 300, thus completing the snap-fit ​​installation of the mounting frame 100.

[0050] Furthermore, the bottom of the connecting frame 212 is also provided with a limiting plate 213 for preventing the second bracket 221 from falling off. Furthermore, the bottom of the limiting plate 213 can also be provided with a hanging component, which can be used for suspending wires or other lightweight equipment or components, thereby increasing the overall functionality.

[0051] In one embodiment, the connecting frame 212 is provided with locking teeth 2121, and the sliding groove 222 is provided with locking protrusions that engage unidirectionally with the locking teeth 2121, similar to a buckle or cable tie connection structure. This achieves unidirectional locking, ensuring that the sliding groove 222 does not slip out in the opposite direction after the spacing adjustment is completed, maintaining the stability of the connecting member 200, that is, ensuring the stability of the mounting frame 100, and preventing the connecting member 200 from pulling on the mounting frame 100 and affecting the engagement stability between the mounting frame 100 and the photovoltaic panel 300 frame 310. Of course, when reverse adjustment is required, the locking protrusions can be pried open to release the unidirectional locking between them and the locking teeth 2121, thus completing the reverse sliding of the sliding groove 222.

[0052] In one embodiment, the V-shaped opening of the second bracket 221 is arranged opposite to the V-shaped opening of the first bracket 211, so as to ensure that when the second bracket 221 and the first bracket 211 move relative to each other, the first bracket 211 and the second bracket 221 open outward or retract inward at the same time, so as to achieve the effect of synchronous support or pulling on the mounting frames 100 on both sides, and realize the adjustment of the distance between the mounting frames 100 on both sides.

[0053] like Figures 5 to 6 As shown, in one embodiment, the connector 200 can be designed as a flexible rectangular block 200a. The rectangular block 200a connects the two mounting frames 100 together and is installed on two adjacent photovoltaic panels 300 to simultaneously drain the water from both photovoltaic panels 300. By pulling the flexible rectangular block 200a, the distance between the two mounting frames 100 can be adjusted to accommodate the distance between adjacent photovoltaic panels 300 during actual installation, ensuring that each mounting frame 100 can be connected and fixed to the adjacent photovoltaic panels 300 to achieve drainage.

[0054] In this embodiment, the elastic locking tongue structure 131 is integrally designed with the vertical plate 120 and extends to the bottom of the vertical plate 120. The rectangular block 200a structure is suitable for scenarios where the distance between two adjacent photovoltaic panels 300 is small. This allows the vertical plates 120 of the two mounting frames and the elastic locking tongue structure 131 to be directly inserted into the distance between the two adjacent photovoltaic panels 300. The elastic locking tongue structure 131 engages with the bottom surface of the photovoltaic panel 300 frame 310, thus achieving the connection and fixation between the mounting frame 100 and the photovoltaic panel 300.

[0055] Of course, in actual operation, the structural shape of the connector 200 is not limited to a rectangular block 200a, but can be set to other shapes. It can also be directly achieved by a structure such as a spring to realize the elastic connection between the two mounting frames, so that the distance between the two mounting frames 100 can be adjusted to adapt to the actual distance between two adjacent photovoltaic panels 300. Such designs are all within the protection scope of this invention.

[0056] like Figures 11 to 12 As shown, in one embodiment, the auxiliary guide channel 112 includes a water guide channel 1121 and a mud guide channel 1122. The water guide channel 1121 is disposed above the mud guide channel 1122, and the guide component is disposed inside the water guide channel 1121. Specifically, when there is a small amount of water, the auxiliary guide channel 112 performs the guide operation alone. By using the hydrophilic properties of the guide component, it provides a suction force to the small amount of water. Utilizing the capillary effect principle, the small amount of water is drawn into the water guide channel 1121. Under the action of the water flow, the mud and sand in the water flow into the mud guide channel 1122 below the water guide channel 1121, effectively cleaning up the water and mud on the photovoltaic panel 300.

[0057] Furthermore, the width of the connection between the water diversion channel 1121 and the mud diversion channel 1122 is less than the maximum width of the water diversion channel 1121, so that when the diversion component is placed in the water diversion channel 1121, it can remain fixed and will not fall from the water diversion channel 1121 into the mud diversion channel 1122 and affect the diversion operation of the mud diversion channel 1122.

[0058] In one embodiment, the guiding component is a guiding wire laid within the auxiliary guiding channel 112. Specifically, the guiding wire is made of a hydrophilic material and is inserted into the water-guiding channel 1121 of the auxiliary guiding channel 112 during installation of the mounting frame 100. In this embodiment, the water-guiding channel 1121 is a circular channel to match the shape of the guiding wire, and the mud-guiding channel 1122 is a rectangular channel. The connection opening between the water-guiding channel 1121 and the mud-guiding channel 1122 is smaller than the diameter of the water-guiding channel 1121. In fact, this connection opening is smaller than the diameter of the guiding wire to prevent the guiding wire from falling off. Of course, other structural forms of guiding components can be used besides this embodiment, and the shapes of the water-guiding channel 1121 and the mud-guiding channel 1122 are not limited to circular and rectangular. As long as the installation and placement of the guiding component and the functions of guiding water and discharging mud are met, such designs are all within the protection scope of this invention.

[0059] like Figure 2 , Figure 11 and Figure 12As shown, in one embodiment, the cross-sectional area of ​​the auxiliary water guiding channel is larger than that of the auxiliary flow guiding channel, and the interface connecting the auxiliary water guiding channel and the auxiliary flow guiding channel is vertically arranged. Specifically, when water flows in from the auxiliary flow guiding channel and flows horizontally into the auxiliary water guiding channel, because the cross-sectional area of ​​the auxiliary water guiding channel is larger than that of the auxiliary flow guiding channel, the water volume cannot immediately fill the entire auxiliary water guiding channel. Therefore, the water will suddenly accelerate downward under the action of gravity, and drive the subsequent water to flow faster in the auxiliary flow guiding channel. At this time, a negative pressure effect is formed at the corner of the interface between the auxiliary water guiding channel and the auxiliary flow guiding channel, which is beneficial to improving the water guiding rate of the auxiliary flow guiding channel. In other words, under the condition of a certain water flow rate, the water flow velocity in the auxiliary water guiding channel with a smaller cross-sectional area is faster than that in the auxiliary water guiding channel, thereby improving the suction force and water absorption speed of the auxiliary water guiding channel on the photovoltaic panel 300, which is beneficial to improving the drainage rate of the overall device.

[0060] like Figures 8 to 12 As shown, in one embodiment, the top plate 110 includes a first end 110a and a second end 110b. The height of the first end 110a is lower than the height of the second end 110b. The bottom of the first end 110a is in contact with the top surface of the photovoltaic panel 300, and the bottom of the second end 110b is in contact with the top surface of the frame 310 at the edge of the photovoltaic panel 300. Specifically, since the top surface of the frame 310 of the photovoltaic panel 300 is higher than the upper surface of the photovoltaic panel 300, the stepped top plate 110 structure ensures that the top plate 110 fits tightly with the photovoltaic panel 300 and the frame 310, guaranteeing the siphon effect for drainage. Of course, in actual operation, the outline of the top plate 110 can be designed according to the upper rib outline of the frame 310 of the specific photovoltaic panel 300 to ensure that the mounting frame 100 fits tightly with the frame 310 of the photovoltaic panel 300, guaranteeing the drainage effect. Furthermore, to ensure that the top plate 110 fits tightly with the frame 310, the top plate 110 is arranged parallel to the frame 310 along the tilt direction of the frame 310, that is, the tilt angle of the top plate 110 and the photovoltaic panel 300 is the same.

[0061] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A self-cleaning device for water accumulation on photovoltaic panels, characterized in that, The system includes a mounting frame (100), which is mounted on a frame (310) at the bottom side of a photovoltaic panel (300). The mounting frame (100) includes a top plate (110), a vertical plate (120), and an elastic locking tongue structure (131) connected in sequence. The top plate (110) and the elastic locking tongue structure (131) are respectively connected to the upper and lower ends of the photovoltaic panel (300). The top plate (110) is provided with a drainage groove (111), and the vertical plate (120) is provided with a drainage groove (121) that communicates with the drainage groove (111). The top plate (110) is also provided with an auxiliary flow guide channel (112), which is located on the side of the top plate (110) near the bottom of the photovoltaic panel (300). The vertical plate (120) is provided with an auxiliary water guide channel (122) that communicates with the auxiliary flow guide channel (112). The auxiliary flow guide channel (112) is provided with a flow guiding component. The auxiliary guide channel (112) includes a water guide channel (1121) and a mud guide channel (1122) that are interconnected. The water guide channel (1121) is located above the mud guide channel (1122), and the guide component is located inside the water guide channel (1121). The width of the connection between the water intake channel (1121) and the mud intake channel (1122) is less than the maximum width of the water intake channel (1121).

2. The photovoltaic panel water self-cleaning device according to claim 1, characterized in that, There are two mounting frames (100), and the two mounting frames (100) are connected by an adjustable connector (200).

3. The photovoltaic panel water self-cleaning device according to claim 2, characterized in that, The connector (200) includes a first support (210) and a second support (220). The first support (210) includes a first bracket (211) and a connecting frame (212). The first bracket (211) is V-shaped, and one end of the connecting frame (212) is connected to the middle of one end of the V-shaped opening of the first bracket (211). The second support (220) includes a second bracket (221) that is slidably connected to the connecting frame (212). The second bracket (221) is V-shaped, and the middle of the second bracket (221) is provided with a groove (222) for slidably connecting to the connecting frame (212).

4. The photovoltaic panel water self-cleaning device according to claim 3, characterized in that, The connecting frame (212) is provided with a locking tooth (2121), and the sliding groove (222) is provided with a locking protrusion that engages unidirectionally with the locking tooth (2121).

5. A self-cleaning device for water accumulation on photovoltaic panels according to claim 3, characterized in that, The V-shaped opening of the second bracket (221) is positioned opposite to the V-shaped opening of the first bracket (211).

6. The photovoltaic panel water self-cleaning device according to claim 1, characterized in that, The width of the auxiliary water guide channel (122) is greater than the width of the auxiliary flow guide channel (112), and the interface connecting the auxiliary water guide channel (122) and the auxiliary flow guide channel (112) is vertically arranged.

7. The photovoltaic panel water self-cleaning device according to claim 1, characterized in that, The top plate (110) includes a first end (110a) and a second end (110b). The height of the first end (110a) is lower than the height of the second end (110b). The bottom of the first end (110a) abuts against the top surface of the photovoltaic panel (300), and the bottom of the second end (110b) abuts against the top surface of the frame (310) at the edge of the photovoltaic panel (300).

8. A self-cleaning device for water accumulation on photovoltaic panels according to claim 1, characterized in that, The bottom of the vertical plate (120) is connected to the base plate (130), and the elastic locking tongue structure (131) is disposed on the base plate (130).

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