Solar photovoltaic panels

Abstract

The present application provides a solar photovoltaic module, relating to the field of photovoltaic power generation technology. The solar photovoltaic module includes a photovoltaic panel and a rainwater collection and dust removal mechanism. The rainwater collection and dust removal mechanism includes a rain guide, a rainwater collection member, a pump body, and a nozzle. The rain guide is used to receive rainwater falling from the edge of the photovoltaic panel and transport the rainwater to the rainwater collection member. The inlet of the pump body is connected to the rainwater collection member, and the outlet of the pump body is connected to the nozzle. The pump body is used to spray rainwater in the rainwater collection member through the nozzle toward the light-receiving surface of the photovoltaic panel. During the operation of the photovoltaic module, automated cleaning operations can be achieved, reducing labor intensity and costs.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a solar photovoltaic assembly. Background Art

[0002] Solar energy is an inexhaustible clean energy source. Photovoltaic power generation eliminates fossil fuel consumption and greenhouse gas emissions, aligns with sustainable economic development strategies, and is an effective means of addressing global warming, energy shortages, and environmental degradation. With technological advancements and cost reductions, the large-scale development and construction of photovoltaic bases has become a trend in renewable energy production. The Northwest region boasts high altitudes, low moisture content, thin cloud cover, and intense solar radiation. Most areas are located in high-radiation zones, with an average annual sunshine duration exceeding 2,500 hours, resulting in abundant solar resources. Furthermore, the Northwest region is vast and sparsely populated, providing ample area for photovoltaic bases, with minimal competition from farmland and urban land use types. Its abundant land resources make it an ideal location for large-scale photovoltaic base construction. Since the 21st century, the Northwest region has vigorously developed photovoltaic projects. By the end of 2010, its installed photovoltaic capacity had surpassed that of any region nationwide, totaling 325.5 megawatts. The rapid development of the Northwest region's photovoltaic power generation industry has significantly contributed to effectively alleviating the country's energy crisis and optimizing its electricity consumption structure.

[0003] Photovoltaic bases are primarily located on unused land. Northwest China is home to widespread deserts and Gobi deserts, making them ideal locations for photovoltaic base construction. Currently, China's largest photovoltaic power generation base is the Taratan Photovoltaic Power Station in Qinghai, situated amidst the vast Gobi Desert. However, desert regions suffer from arid climates, water shortages, sparse vegetation, exposed ground, and abundant sand sources. Strong winds are frequent, leading to frequent sandstorms, long-distance dust transport, and widespread wind and sand flow. Surface sand erosion and accumulation are common. Strong winds not only erode the roots of photovoltaic panels, posing a risk of collapse for modules in areas of severe wind erosion, but also cause dust to build up on the panels, impacting power generation efficiency. Furthermore, with the construction of large-scale solar photovoltaic power stations in desert regions, construction disturbs the ground, activating soil and providing a rich source of sand for wind and sand, exacerbating the threat to photovoltaic power generation.

[0004] Prolonged wind and sand activity in the northwest region causes dust and other contaminants to adhere to photovoltaic panels, obscuring the modules and affecting light transmittance. This, in turn, reduces the amount of radiation received by the module surfaces and can cause hot spots, potentially damaging them. Under partially shaded conditions, the reduced irradiance significantly reduces the output power of photovoltaic systems, which in turn affects the power attenuation of photovoltaic modules. If photovoltaic modules are not cleaned promptly over a prolonged period, the power generation capacity of the photovoltaic power station will be significantly reduced, not only failing to meet grid requirements but also reducing the utilization rate of the photovoltaic power generation system and even shortening the lifespan of the photovoltaic power generation equipment and its associated materials. Furthermore, the accumulation of dust creates secondary hazards, impacting the living environment of photovoltaic bases.

[0005] The inventors have found that existing photovoltaic power generation equipment in deserts and Gobi areas has the following shortcomings:

[0006] The prevention and control of dust on photovoltaic panels mainly relies on regular manual cleaning by a large number of people, which is time-consuming, labor-intensive and costly. Summary of the Invention

[0007] The object of the present invention is to provide a solar photovoltaic assembly that can automatically prevent the impact of sand and dust on photovoltaic panels, reduce labor intensity and reduce costs.

[0008] The embodiment of the present invention is achieved as follows:

[0009] The present invention provides a solar photovoltaic assembly, comprising:

[0010] A photovoltaic panel and a rain-collecting and dust-removing mechanism, wherein the rain-collecting and dust-removing mechanism includes a rain guide, a rain-collecting member, a pump body and a nozzle. The rain guide is used to receive rainwater falling from the edge of the photovoltaic panel and transport the rainwater to the rain-collecting member. The inlet of the pump body is connected to the rain-collecting member, and the outlet of the pump body is connected to the nozzle. The pump body is used to spray the rainwater in the rain-collecting member toward the light-receiving surface of the photovoltaic panel through the nozzle.

[0011] In an optional embodiment, the rain guide member is provided with a rain guide groove, the rain guide member is connected to the back side of the photovoltaic panel, and the rain guide groove is used to receive rainwater falling from the edge of the photovoltaic panel.

[0012] In an optional embodiment, an orthographic projection of an edge of the photovoltaic panel in a direction perpendicular to the panel surface of the photovoltaic panel is located within the rain guide groove.

[0013] In an optional embodiment, the rain guide is located on a side of the light-receiving surface of the photovoltaic panel close to the back side of the photovoltaic panel.

[0014] In an optional embodiment, the rain guide trough includes a first trough section, a second trough section and a third trough section that are connected in sequence, the first trough section and the third trough section are located on the same side of the second trough section, the photovoltaic panel is connected to the rain guide member and the three edges of the photovoltaic panel connected correspond to the first trough section, the second trough section and the third trough section respectively; the third trough section is provided with a filter hole, and the filter hole is connected to the rain collecting member.

[0015] In an optional embodiment, the rain guide member has two opposite side surfaces, each of which is provided with a rain guide groove; a driving mechanism is provided at the bottom of the photovoltaic panel, and the driving mechanism is connected to the rain guide member, and the driving mechanism is used to drive the rain guide member to rotate so as to selectively allow one of the two rain guide grooves to receive rainwater falling from the edge of the photovoltaic panel.

[0016] In an optional embodiment, the rain guide member includes a first rain guide strip, a second rain guide strip, a third rain guide strip, a first transfer ball and a second transfer ball, the first rain guide strip is provided with two first rain guide grooves facing back to back, and one end of the first rain guide strip is rotatably connected to the first transfer ball; the first transfer ball and the second transfer ball are both connected to the photovoltaic panel, the first transfer ball is provided with a first conduction hole, and the second transfer ball is provided with a second conduction hole; the two ends of the second rain guide strip are rotatably connected to the first transfer ball and the second transfer ball respectively, the second rain guide strip is provided with two second rain guide grooves facing back to back, and the first rain guide groove is connected to the second rain guide groove through the first conduction hole; one end of the third rain guide strip is rotatably connected to the second transfer ball, the third rain guide strip is provided with two third rain guide grooves facing back to back, and the second rain guide groove is connected to the third rain guide groove through the second conduction hole.

[0017] In an optional embodiment, the driving mechanism includes a first motor, a second motor and a third motor, the first motor is connected to the first rain guide strip through a first gear assembly, the second motor is connected to the second rain guide strip through a second gear assembly, and the third motor is connected to the third rain guide strip through a third gear assembly.

[0018] In an optional embodiment, the solar photovoltaic assembly further includes a cleaning brush, which is rotatably connected to the photovoltaic panel and is used to clean the light-receiving surface of the photovoltaic panel.

[0019] In an optional embodiment, the pump body is electrically connected to the photovoltaic panel.

[0020] The beneficial effects of the embodiments of the present invention are:

[0021] In summary, the solar photovoltaic assembly provided in this embodiment has a photovoltaic panel that, during normal use, is positioned at a roughly 45° angle to the horizontal, with the light-receiving surface of the photovoltaic panel exposed to sunlight, thereby utilizing solar energy to generate electricity. Rainfall in desert and Gobi regions often results in very low volumes of rainwater, making it impossible to directly utilize natural rainfall to clean dust from the surface of the photovoltaic panel. In this embodiment, the photovoltaic panel is equipped with a rainwater collection and dust removal mechanism. When rain falls, raindrops land on the light-receiving surface of the photovoltaic panel and in a rain guide. The rain guide collects and stores the raindrops in the rain collection mechanism, accumulating them into a large volume, ultimately storing a large amount of rainwater in the rain collection mechanism. When dust removal is required on the photovoltaic panel, the pump is activated, transferring rainwater from the rain collection mechanism to a nozzle, where it is then sprayed onto the light-receiving surface of the photovoltaic panel, thereby cleaning away dust from the light-receiving surface and preventing dust from coating the photovoltaic panel and affecting its power generation efficiency. The dust removal system for photovoltaic panels uses a pump to deliver water to the nozzle for spraying. This system is highly automated, saves time and effort, and reduces costs. It also rationally utilizes rainwater, saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic structural diagram of a solar photovoltaic assembly according to an embodiment of the present invention;

[0024] Figure 2 A side view of a partial structure of a solar photovoltaic assembly according to an embodiment of the present invention;

[0025] Figure 3 A schematic structural diagram of a rain guide member according to an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the structure of the rain guide and the driving mechanism according to an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of the structure of the second rain guide strip and part of the driving mechanism according to an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the structure of a first rain guide strip according to an embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the structure of the second rain guide strip and the rain collecting element according to an embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the structure of the third rain guide strip according to an embodiment of the present invention.

[0031] icon:

[0032] 100 - Photovoltaic panel; 101 - First side; 102 - Second side; 103 - Third side; 104 - Fourth side; 200 - Rain collection and dust removal mechanism; 210 - Rain guide; 211 - First rain guide strip; 2111 - First rain guide trough; 212 - Second rain guide strip; 2121 - Second rain guide trough; 2122 - First trough wall; 2123 - Second trough wall; 2124 - First filter hole; 2125 - Second filter hole; 213 - Third rain guide strip; 2131 - Third rain guide trough; 214 - First transfer ball; 2141 -first conducting hole; 215-second transfer ball; 2151-second conducting hole; 220-rainwater collecting element; 221-inner cavity; 222-arc-shaped sealing surface; 223-connecting hole; 230-pump body; 240-nozzle; 300-driving mechanism; 310-first motor; 320-second motor; 330-third motor; 340-first main gear; 350-second main gear; 360-third main gear; 370-first driven gear; 380-second driven gear; 390-third driven gear; 400-cleaning brush. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0038] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] Currently, photovoltaic modules installed in deserts and Gobi deserts often accumulate floating debris on the panels 100 due to dust. This affects light transmittance, which in turn reduces the amount of radiation received by the module surface and can cause hot spots, leading to damage. Conventional cleaning methods typically rely on manual labor, which is time-consuming, inefficient, and costly.

[0040] In view of this, the designer designed a solar photovoltaic component that can collect rainwater from natural rainfall, and then use the rainwater to clean the photovoltaic panel 100 in an automated manner, which saves time and effort, is highly efficient and low-cost.

[0041] See also Figures 1-8In this embodiment, the solar photovoltaic assembly includes a photovoltaic panel 100 and a rain collecting and dust removal mechanism 200. The rain collecting and dust removal mechanism 200 includes a rain guide 210, a rain collecting member 220, a pump body 230 and a nozzle 240. The rain guide 210 is used to receive rainwater falling from the edge of the photovoltaic panel 100 and transport the rainwater to the rain collecting member 220. The inlet of the pump body 230 is connected to the rain collecting member 220, and the outlet of the pump body 230 is connected to the nozzle 240. The pump body 230 is used to spray the rainwater in the rain collecting member 220 to the light-receiving surface of the photovoltaic panel 100 through the nozzle 240.

[0042] It should be noted that when the photovoltaic panel 100 is in use, it is positioned on the ground using a bracket, and the photovoltaic panel 100 is at an angle to the horizontal plane. For example, in this embodiment, the photovoltaic panel 100 is at an angle of approximately 45° to the horizontal plane. Of course, the position of the photovoltaic panel 100 relative to the bracket can be adjusted as needed to adjust the orientation of the light-receiving surface of the photovoltaic panel 100 and the angle with the horizontal plane.

[0043] The working principle of the solar photovoltaic assembly provided in this embodiment is as follows:

[0044] The photovoltaic panel 100 is equipped with a rainwater collection and dust removal mechanism 200. When rain falls, raindrops land on the light-receiving surface of the photovoltaic panel 100 and in the rain guide 210. The rain guide 210 collects the raindrops and stores them in the rain collection member 220. This accumulates small amounts of raindrops, ultimately storing a large amount of rainwater in the rain collection member 220. When dust removal on the photovoltaic panel 100 is required, the pump 230 is activated. The pump 230 transports rainwater from the rain collection member 220 to the nozzle 240, where it is then sprayed onto the light-receiving surface of the photovoltaic panel 100, thereby cleaning away dust and dirt from the light-receiving surface and preventing dust from coating the photovoltaic panel 100 and affecting its power generation efficiency. Dust removal on the photovoltaic panel 100 is accomplished by pumping water from the pump 230 to the nozzle 240 for spraying. This highly automated system saves time, effort, and costs. And rational use of rainwater saves water resources.

[0045] In this embodiment, the photovoltaic panel 100 is optionally a rectangular panel having a first side 101, a second side 102, a third side 103, and a fourth side 104 connected end to end. The first side 101 and the third side 103 are opposite each other, and the second side 102 and the fourth side 104 are opposite each other. When the photovoltaic panel 100 is in use, the height of the fourth side 104 is higher than the height of the second side 102, that is, the fourth side 104 is located above the second side 102.

[0046] Please combine Figure 3-Figure 8In this embodiment, the rain guide 210 is optionally installed below the photovoltaic panel 100 and, in order not to affect the arrangement of the photovoltaic panel 100, is installed on a bracket for positioning the photovoltaic panel 100. The rain guide 210 includes a first rain guide strip 211, a second rain guide strip 212, a third rain guide strip 213, a first transfer ball 214, and a second transfer ball 215. The first rain guide strip 211, the second rain guide strip 212, and the third rain guide strip 213 each have two opposing side surfaces, each of which is provided with a rain guide groove. That is, the first rain guide strip 211 is provided with two first rain guide grooves 2111 facing each other, the second rain guide strip 212 is provided with two second rain guide grooves 2121 facing each other, and the third rain guide strip 213 is provided with two third rain guide grooves 2131 facing each other. The first transfer ball 214 is provided with a first conduction hole 2141, and the second transfer ball 215 is provided with a second conduction hole 2151. The first transfer ball 214 and the second transfer ball 215 are both fixedly connected to the photovoltaic panel 100. The first transfer ball 214 is located at the connection between the first side 101 and the second side 102, and the second transfer ball 215 is located at the connection between the second side 102 and the third side 103. One end of the first rain guide strip 211 is docked with the first transfer ball 214, and the two are rotatably connected. The second rain guide strip 212 is clamped between the first transfer ball 214 and the second transfer ball 215 and is rotatably connected to both the first transfer ball 214 and the second transfer ball 215. One end of the third rain guide strip 213 is rotatably connected to the second transfer ball 215. A first drive rod is provided at the end of the first rain guide strip 211 away from the first transfer ball 214, and a second drive rod is provided at the end of the third rain guide strip 213 away from the second transfer ball 215. The first drive rod and the second drive rod are arranged in parallel. The first rain guide groove 2111 on the first rain guide strip 211 is connected to the second rain guide groove 2121 on the second rain guide strip 212 through the first conductive hole 2141, and the second rain guide groove 2121 on the second rain guide strip 212 is connected to the third rain guide groove 2131 on the third rain guide strip 213 through the second conductive hole 2151. It should be understood that either of the two first rain guide grooves 2111 on the first rain guide strip 211 is used, and similarly, either of the two second rain guide grooves 2121 on the second rain guide strip 212 is used, and either of the two third rain guide grooves 2131 on the third rain guide strip 213 is used.Specifically, when the rain guide member 210 is in normal use, the end of the first rain guide groove 2111 connected to the first transfer ball 214 is connected to one end of the second rain guide groove 2121 through the first conduction hole 2141, and the other end of the second rain guide groove 2121 is connected to the end of the third rain guide groove 2131 connected to the second transfer ball 215 through the second conduction hole 2151, and the first rain guide strip 211 and the third rain guide strip 213 are located corresponding to the first side 101 and the third side 103, and the second rain guide strip 212 corresponds to the second side 102. The first rain guide strip 211 and the third rain guide strip 213 guide rainwater to the second rain guide strip 212, and then flows from the second rain guide strip 212 into the rain collecting member 220, that is, the second rain guide strip 212 is connected to the rain collecting member 220.

[0047] It should be understood that a sealing layer may be provided between the first rain guide strip 211 and the first transfer ball 214, between the second rain guide strip 212 and the first transfer ball 214 and between the second rain guide strip 212 and the second transfer ball 215, and between the third rain guide strip 213 and the second transfer ball 215. The sealing layer may be a rubber layer.

[0048] Furthermore, the second rain guide strip 212 is configured as a cylindrical strip. Two second rain guide grooves 2121 are disposed on the outer circumference of the second rain guide strip 2121 in a mirror-symmetrical arrangement. Each second rain guide groove 2121 has a first groove wall 2122 and a second groove wall 2123 that oppose each other. The distance between the first groove wall 2122 and the second groove wall 2123 gradually increases from the bottom of the second rain guide groove 2121 toward the groove opening. This facilitates the discharge of dust from the second rain guide groove 2121 when the second rain guide strip 212 is rotated. Obviously, the rain guide grooves in the first rain guide strip 211 and the third rain guide strip 213 can also be configured with the same structure as the second rain guide groove 2121. Furthermore, a first filter hole 2124 is disposed on the first groove wall 2122 of one second rain guide groove 2121, and a second filter hole 2125 is disposed on the second groove wall 2123 of the other second rain guide groove 2121. The number of first filter holes 2124 and second filter holes 2125 is not limited to one. The first filter hole 2124 and the second filter hole 2125 are selectively communicated with the rain collecting element 220 .

[0049] That is, after the first rain guide strip 211, the second rain guide strip 212, and the third rain guide strip 213 have been used for a set period of time, dust accumulates in the first rain guide trough 2111, the second rain guide trough 2121, and the third rain guide trough 2131. At this time, the first rain guide strip 211, the second rain guide strip 212, and the third rain guide strip 213 are rotated 180 degrees, and the rain guide troughs originally facing away from the photovoltaic panel 100 are rotated to face the photovoltaic panel 100, while the rain guide troughs with dust accumulated are rotated to face away from the photovoltaic panel 100. In this way, the accumulated dust can automatically fall out of the rain guide troughs, and the cycle can be repeated. It should be understood that the rotation axes of the first rain guide strip 211 and the third rain guide strip 213 are parallel and perpendicular to the rotation axis of the second rain guide strip 212.

[0050] It should be noted that, in other embodiments, the first rain guide trough may be referred to as the first trough section, the second rain guide trough may be referred to as the second trough section, and the third rain guide trough may be referred to as the third trough section.

[0051] Please combine Figure 7 It should be noted that the rain collecting element 220 is configured as a box body, having an inner cavity 221 and an arcuate sealing surface 222. The arcuate sealing surface 222 is provided with a connection hole 223 for communicating with the first filter hole 2124 or the second filter hole 2125. A filter mesh can be placed in the connection hole 223. Furthermore, a sealing layer is provided on the arcuate sealing surface 222. The outer circumference of the second rain guide strip 212 is in contact with the arcuate sealing surface 222 and is rotatable relative to the arcuate sealing surface 222. During rotation, the first filter hole 2124 can communicate with the inner cavity 221 through the connection hole 223. At this time, rainwater in the second rain guide trough 2121 can pass through the first filter hole 2124 and enter the inner cavity 221 for storage. Similarly, when the second rain guide strip 212 rotates 180°, the other second rain guide trough 2121 connects to the inner cavity 221 through the second filter hole 2125. The sealing layer prevents leakage at the connection point. Furthermore, the length of the rain collecting element 220 is shorter than that of the second rain guiding strip 212. That is, the first filter holes 2124 and the second filter holes 2125 of the second rain guiding strip 212 are substantially concentrated in the middle of the second rain guiding strip 212. During rotation, the second rain guiding strip 212 rotates away from the rain collecting element 220 to adjust its position. This prevents sand and dust from entering the rain collecting element 220 through the connecting holes 223 during rotation, and from accumulating in the gap between the rain collecting element 220 and the second rain guiding strip 212.

[0052] It should be understood that a filter screen can be provided in the first filter hole 2124 and the second filter hole 2125 to filter sand, dust, or other impurities from the rainwater. The filter screen can adopt a conventionally known structure. For example, the filter screen has a plurality of holes densely distributed thereon, which allows rainwater to pass through while preventing sand and dust from passing through.

[0053] Optionally, a driving mechanism 300 is provided on the back of the photovoltaic panel 100, and the driving mechanism 300 can simultaneously drive the first rain guide strip 211, the second rain guide strip 212 and the third rain guide strip 213 to rotate, so that the positions of the first rain guide strip 211, the second rain guide strip 212 and the third rain guide strip 213 can be easily adjusted.

[0054] Optionally, the drive mechanism 300 includes a first motor 310, a second motor 320, a third motor 330, a first main gear 340, a second main gear 350, a third main gear 360, a first driven gear 370, a second driven gear 380, and a third driven gear 390. The first motor 310 is fixed to the bracket, the first main gear 340 is mounted on the first motor 310, and the first driven gear 370 is mounted outside the first drive rod of the first rain guide strip 211. The first main gear 340 and the first driven gear 370 are meshed. The second motor 320 is fixed to the bracket, the second main gear 350 is mounted on the second motor 320, and the second driven gear 380 is sleeved on the outside of the second rain guide strip 212 without affecting the assembly of the rain collecting element 220 and the second rain guide strip 212. The second main gear 350 and the second driven gear 380 are meshed. The third motor 330 is fixed to the bracket, the third main gear 360 is mounted on the third motor 330 , the third driven gear 390 is mounted outside the third driving rod of the third rain guide strip 213 , and the third main gear 360 and the third driven gear 390 are meshed.

[0055] In this embodiment, when the rain guide 210 is assembled with the photovoltaic panel 100, the rain guide 210 is located below the photovoltaic panel 100, that is, the rain guide 210 is located on the side of the light-receiving surface of the photovoltaic panel 100 close to the back of the photovoltaic panel 100. In this way, the rain guide 210 will not block sunlight from shining on the photovoltaic panel 100. At the same time, the orthographic projections of the first side surface 101, the second side surface 102, and the third side surface 103 of the photovoltaic panel 100 in a direction perpendicular to the panel surface of the photovoltaic panel 100 are all located in the rain guide groove on the rain guide 210. In this way, rainwater on the photovoltaic panel 100 can easily flow from its edge into the rain guide groove.

[0056] In this embodiment, the solar photovoltaic assembly optionally further includes a cleaning brush 400. One end of the cleaning brush 400 is rotatably connected to the photovoltaic panel 100. The cleaning brush 400 is configured to scrape the light-receiving surface of the photovoltaic panel 100 as it rotates, thereby cleaning the light-receiving surface of the photovoltaic panel 100. This, combined with rainwater sprayed from the nozzle 240, can better clean the photovoltaic panel 100. The cleaning brush 400 can be driven by a motor, which is fixed to the bracket or the photovoltaic panel 100.

[0057] In this embodiment, a nozzle 240 is optionally provided at the location corresponding to the fourth side surface 104. The nozzle 240 can be mounted on the photovoltaic panel 100 or on a bracket. The nozzle 240 is equipped with multiple nozzles that can spray rainwater onto the light-receiving surface of the photovoltaic panel 100. The multiple nozzles can be arranged in a row and evenly spaced along the length of the nozzle 240.

[0058] It should be understood that the pump body 230, the motor and the motor can all be electrically connected to the photovoltaic panel 100 and directly powered by the electricity converted by the photovoltaic panel 100. Alternatively, the pump body 230 and the motor can be powered by an additional battery.

[0059] The solar photovoltaic assembly provided in this embodiment uses a pump 230 to deliver water to a nozzle 240 for dust removal from the photovoltaic panel 100. This process is highly automated, saves time and effort, and reduces costs. Furthermore, rainwater is used rationally to conserve water resources.

[0060] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A solar photovoltaic module, characterized in that: include: A photovoltaic panel (100) and a rain collecting and dust removing mechanism (200), wherein the rain collecting and dust removing mechanism (200) comprises a rain guide member (210), a rain collecting member (220), a pump body (230), and a nozzle (240); the rain guide member (210) is used to receive rainwater falling from the edge of the photovoltaic panel (100) and transport the rainwater to the rain collecting member (220); the inlet of the pump body (230) is connected to the rain collecting member (220); the outlet of the pump body (230) is connected to the nozzle (240); and the pump body (230) is used to spray the rainwater in the rain collecting member (220) toward the light-receiving surface of the photovoltaic panel (100) through the nozzle (240); The rain guide member (210) is provided with a rain guide groove, the rain guide member (210) is connected to the back surface of the photovoltaic panel (100), and the rain guide groove is used to receive rainwater falling from the edge of the photovoltaic panel (100); The rain guide member (210) has two opposite side surfaces, each of which is provided with a rain guide groove; a driving mechanism is provided at the bottom of the photovoltaic panel (100), the driving mechanism being connected to the rain guide member (210), and the driving mechanism being used to drive the rain guide member (210) to rotate so as to selectively cause one of the two rain guide grooves to receive rainwater falling from the edge of the photovoltaic panel (100); The rain guide member (210) comprises a first rain guide strip (211), a second rain guide strip (212), a third rain guide strip (213), a first transfer ball (214) and a second transfer ball (215); the first rain guide strip (211) is provided with two first rain guide grooves (2111) facing each other; one end of the first rain guide strip (211) is rotatably connected to the first transfer ball (214); the first transfer ball (214) and the second transfer ball (215) are both connected to the photovoltaic panel (100); the first transfer ball (214) is provided with a first conduction hole (2141), and the second transfer ball (215) is provided with a second conduction hole (2151); the second rain guide strip (211) is provided with a first conduction hole (2141); ... The two ends of the strip (212) are rotatably connected to the first transfer ball (214) and the second transfer ball (215), respectively; the second rain guide strip (212) is provided with two second rain guide grooves (2121) facing each other, and the first rain guide groove (2111) is connected to the second rain guide groove (2121) through the first conductive hole (2141); one end of the third rain guide strip (213) is rotatably connected to the second transfer ball (215), and the third rain guide strip (213) is provided with two third rain guide grooves (2131) facing each other, and the second rain guide groove (2121) is connected to the third rain guide groove (2131) through the second conductive hole (2151).

2. The solar photovoltaic assembly according to claim 1, characterized in that: The orthographic projection of the edge of the photovoltaic panel (100) in a direction perpendicular to the panel surface of the photovoltaic panel (100) is located within the rain guide groove.

3. The solar photovoltaic assembly according to claim 1, characterized in that: The rain guide (210) is located on a side of the light-receiving surface of the photovoltaic panel (100) close to the back side of the photovoltaic panel (100).

4. The solar photovoltaic assembly according to claim 1, characterized in that: The rain guide trough comprises a first trough section, a second trough section, and a third trough section that are connected in sequence, the first trough section and the third trough section being located on the same side of the second trough section, the photovoltaic panel (100) being connected to the rain guide member (210), and the three edges of the photovoltaic panel (100) being connected corresponding to the first trough section, the second trough section, and the third trough section, respectively; the third trough section is provided with a filter hole, the filter hole being connected to the rain collecting member (220).

5. The solar photovoltaic assembly according to claim 1, characterized in that: The driving mechanism comprises a first motor, a second motor and a third motor, the first motor being connected to the first rain guide strip (211) via a first gear assembly, the second motor being connected to the second rain guide strip (212) via a second gear assembly, and the third motor being connected to the third rain guide strip (213) via a third gear assembly.

6. The solar photovoltaic assembly according to claim 1, characterized in that: The solar photovoltaic assembly further comprises a cleaning brush (400), the cleaning brush (400) being rotatably connected to the photovoltaic panel (100) and being used for cleaning the light-receiving surface of the photovoltaic panel (100).

7. The solar photovoltaic assembly according to claim 1, characterized in that: The pump body (230) is electrically connected to the photovoltaic panel (100).

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