Photovoltaic vibration-damping cleaning device and photovoltaic power generation system

Abstract

The application discloses a photovoltaic vibration suppression cleaning device and a photovoltaic power generation system using the same. The photovoltaic vibration suppression cleaning device comprises an air inlet assembly, an air outlet assembly and a valve. The air inlet assembly is adapted to be mounted on a photovoltaic support. The photovoltaic support extends along the east-west direction. The air inlet assembly comprises a first air inlet and a second air inlet. The opening of the first air inlet faces the south side of the photovoltaic support, and the opening of the second air inlet faces the north side of the photovoltaic support. The air outlet assembly is adapted to be mounted on a photovoltaic panel. The air outlet assembly comprises a first assembly and a second assembly. The first assembly is arranged on the north side of the photovoltaic panel, and the second assembly is arranged on the south side of the photovoltaic panel. The valve is connected between the air inlet assembly and the air outlet assembly. The photovoltaic vibration suppression cleaning device has the advantages of improving the wind resistance stability of the photovoltaic support and removing the sand and dust on the photovoltaic panel.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment technology, and more specifically, to a photovoltaic vibration damping and cleaning device and a photovoltaic power generation system using the photovoltaic vibration damping and cleaning device. Background Technology

[0002] As a major force in clean energy, photovoltaic (PV) power generation has seen its installed capacity increase year by year. However, with increasingly scarce land resources, PV support systems are developing towards lightweight and large-span designs. This has led to a gradual decrease in system stiffness and a more flexible overall structure, making them increasingly sensitive to wind loads. Consequently, wind-induced vibrations and wind damage incidents at PV power plants are becoming more frequent. Furthermore, PV power generation systems in related technologies exhibit relatively low power generation efficiency and poor wind resistance stability. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a photovoltaic vibration damping and cleaning device, which has the advantages of improving the wind resistance stability of photovoltaic supports and removing sand and dust from photovoltaic panels.

[0004] This invention also proposes a photovoltaic power generation system.

[0005] The photovoltaic vibration damping and cleaning device of this invention includes an air intake assembly adapted to be installed on a photovoltaic bracket extending in an east-west direction. The air intake assembly includes a first air inlet and a second air inlet, the opening of the first air inlet facing the south side of the photovoltaic bracket, and the opening of the second air inlet facing the north side of the photovoltaic bracket. An exhaust assembly adapted to be installed on a photovoltaic panel includes a first component and a second component. The first component is located on the north side of the photovoltaic panel to blow away the photovoltaic panel and disrupt the eddies on the north side of the photovoltaic panel, and the second component is located on the south side of the photovoltaic panel to blow away the photovoltaic panel and disrupt the eddies on the south side of the photovoltaic panel. A valve is connected between the air intake assembly and the exhaust assembly to allow airflow entering the air intake assembly to flow unidirectionally to the exhaust assembly.

[0006] The photovoltaic vibration damping and cleaning device of this invention has the advantages of improving the wind resistance stability of photovoltaic brackets and removing sand and dust from photovoltaic panels.

[0007] In some embodiments, the first component is unidirectionally connected to the first air inlet so that airflow entering the first air inlet is discharged through the first component, and the second component is unidirectionally connected to the second air inlet so that airflow entering the second air inlet is discharged through the second component.

[0008] In some embodiments, the first component includes a first air outlet and a second air outlet. The first air outlet is located on the lower side of the north end of the photovoltaic panel, and the first air outlet bends and extends toward the photovoltaic panel to guide airflow to the north side of the photovoltaic panel. The second air outlet is located on the upper side of the north end of the photovoltaic panel, and the second air outlet extends along the length direction of the photovoltaic panel so that the airflow discharged through the second air outlet flows along the upper surface of the photovoltaic panel. The second component includes a third air outlet and a fourth air outlet. The third air outlet is located on the lower side of the south end of the photovoltaic panel, and the third air outlet bends and extends toward the photovoltaic panel to guide airflow to the south side of the photovoltaic panel. The fourth air outlet is located on the upper side of the south end of the photovoltaic panel, and the fourth air outlet extends along the length of the photovoltaic panel so that the airflow discharged through the fourth air outlet flows along the upper surface of the photovoltaic panel.

[0009] In some embodiments, the intersection of the geometric axis of the first air outlet and the upper surface of the photovoltaic panel has a first predetermined distance from the south end of the photovoltaic panel; The intersection of the geometric axis of the third air outlet and the upper surface of the photovoltaic panel has a second predetermined distance from the north end of the photovoltaic panel.

[0010] In some embodiments, the flow area of ​​the first air inlet gradually decreases from south to north, and the flow area at the southern end of the first air inlet is greater than the sum of the flow area of ​​the first air outlet and the flow area of ​​the second air outlet. The flow area of ​​the second air inlet gradually decreases from north to south, and the flow area at the north end of the second air inlet is greater than the sum of the flow areas of the third air outlet and the fourth air outlet.

[0011] In some embodiments, there are multiple first air outlets, which are evenly spaced along the width direction of the photovoltaic panel; and there are multiple second air outlets, which are evenly spaced along the width direction of the photovoltaic panel. There are multiple third air outlets, which are evenly spaced along the width direction of the photovoltaic panel. There are also multiple fourth air outlets, which are evenly spaced along the width direction of the photovoltaic panel.

[0012] In some embodiments, there are multiple first air inlets, which are arranged at intervals along the vertical direction; there are multiple second air inlets, which are arranged at intervals along the vertical direction.

[0013] In some embodiments, the first air inlet and the second air inlet are respectively provided with filters to filter out impurities in the airflow entering the air intake assembly.

[0014] The photovoltaic power generation system of this invention includes a photovoltaic vibration damping and cleaning device, a photovoltaic panel, and a photovoltaic support. The photovoltaic vibration damping and cleaning device can be the photovoltaic vibration damping and cleaning device described in any of the above embodiments. The photovoltaic panel is disposed at the upper end of the photovoltaic support, and the photovoltaic vibration damping and cleaning device is disposed between the photovoltaic support and the photovoltaic panel.

[0015] In some embodiments, there are multiple photovoltaic panels, multiple photovoltaic supports, and multiple photovoltaic vibration damping and cleaning devices, with each photovoltaic panel, photovoltaic support, and photovoltaic vibration damping and cleaning device arranged in a corresponding manner.

[0016] The photovoltaic power generation system of this invention has the advantage of high wind resistance and stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a photovoltaic power generation system according to an embodiment of the present invention under a southerly wind.

[0018] Figure 2 This is a schematic diagram of a photovoltaic power generation system according to an embodiment of the present invention under northerly winds.

[0019] Figure 3 This is a top view schematic diagram of a photovoltaic power generation system according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the filter screen of the photovoltaic vibration damping and cleaning device according to an embodiment of the present invention.

[0021] Figure label: Photovoltaic vibration damping and cleaning device 01; air inlet component 1; first air inlet 11; second air inlet 12; exhaust component 2; first component 21; first air outlet 211; second air outlet 212; second component 22; third air outlet 221; fourth air outlet 222; valve 3; Photovoltaic panel 02; Photovoltaic bracket 03. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] The following is combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 The photovoltaic vibration damping and cleaning device 01 is described in an embodiment of the present invention.

[0024] The photovoltaic vibration damping and cleaning device 01 of this invention includes an air inlet assembly 1, an air outlet assembly 2, and a valve 3.

[0025] The air intake assembly 1 is suitable for installation on the photovoltaic bracket 03, which extends in an east-west direction. The air intake assembly 1 includes a first air inlet 11 and a second air inlet 12. The opening of the first air inlet 11 faces the south side of the photovoltaic bracket 03, and the opening of the second air inlet 12 faces the north side of the photovoltaic bracket 03.

[0026] Specifically, the photovoltaic panel 02 is disposed on the upper side of the photovoltaic bracket 03, and the photovoltaic bracket 03 extends in the east-west direction. The photovoltaic panel 02 is tilted towards the south, and the height of the southern end of the photovoltaic panel 02 is lower than the height of the northern end of the photovoltaic panel 02. The photovoltaic bracket 03 extends in the vertical direction. The first air inlet 11 is disposed on the photovoltaic bracket 03 and the opening of the first air inlet 11 faces the south, so that the south wind can enter the photovoltaic vibration damping and cleaning device 01 of this embodiment through the first air inlet 11. The second air inlet 12 is disposed on the photovoltaic bracket 03 and the opening of the second air inlet 12 faces the north, so that the north wind can enter the photovoltaic vibration damping and cleaning device 01 of this embodiment through the second air inlet 12.

[0027] The exhaust assembly 2 is suitable for installation on the photovoltaic panel 02. The exhaust assembly 2 includes a first assembly 21 and a second assembly 22. The first assembly 21 is located on the north side of the photovoltaic panel 02 to facilitate blowing on the photovoltaic panel 02 and disrupting the eddies on the north side of the photovoltaic panel 02. The second assembly 22 is located on the south side of the photovoltaic panel 02 to facilitate blowing on the photovoltaic panel 02 and disrupting the eddies on the south side of the photovoltaic panel 02.

[0028] Specifically, the exhaust assembly 2 is located on the lower side of the photovoltaic panel 02 and connected to the air inlet assembly 1. The south or north wind blowing towards the air inlet assembly 1 flows through the exhaust assembly 2 and is discharged. Part of the airflow discharged by the exhaust assembly 2 blows towards the upper surface of the photovoltaic panel 02 to remove dust and other foreign objects attached to the upper surface of the photovoltaic panel 02. When the south or north wind blows into the photovoltaic power generation system of this embodiment, eddies are generated on the south or north side of the photovoltaic panel 02, affecting the wind resistance stability of the photovoltaic panel 02. Another part of the airflow discharged by the exhaust device blows towards the south or north side of the photovoltaic panel 02 to disrupt the eddies on the south or north side of the photovoltaic panel 02 and reduce the impact of the airflow on the wind resistance stability of the photovoltaic panel 02.

[0029] Valve 3 is connected between air inlet assembly 1 and air outlet assembly 2 to allow airflow entering air inlet assembly 1 to flow unidirectionally to air outlet assembly 2.

[0030] Specifically, valve 3 is a one-way valve. Valve 3 is connected between the first component 21 and the first air inlet 11, and valve 3 is also connected between the second component 22 and the second air inlet 12. Valve 3 has a one-way conduction function, allowing airflow to flow from the first air inlet 11 to the first component 21 or from the second air inlet 12 to the second component 22.

[0031] The photovoltaic vibration damping and cleaning device 01 of this embodiment of the invention provides a first air inlet 11 and a second air inlet 12 on the photovoltaic support 03, and a first component 21 and a second component 22 on the photovoltaic panel 02. In the case of southerly winds, the southerly winds blowing towards the photovoltaic power generation system of this embodiment of the invention are guided to the north end of the photovoltaic panel 02 to sweep the photovoltaic panel 02 from the north end and spray airflow onto the north side of the photovoltaic panel 02. This cleans the upper surface of the photovoltaic panel 02 while disrupting the regular eddies generated by the southerly winds on the north side of the photovoltaic panel 02. In the case of northerly winds, the northerly winds blowing towards the photovoltaic power generation system of this embodiment of the invention are guided to the south end of the photovoltaic panel 02 to sweep the photovoltaic panel 02 from the south end and spray airflow onto the south side of the photovoltaic panel 02. This cleans the upper surface of the photovoltaic panel 02 while disrupting the regular eddies generated by the northerly winds on the south side of the photovoltaic panel 02.

[0032] Therefore, when the photovoltaic power generation system of this embodiment is in the south wind or north wind, the photovoltaic vibration damping and cleaning device 01 of this embodiment can blow away and clean the dust and other foreign objects on the surface of the photovoltaic panel 02 and destroy the regular eddies generated downstream of the photovoltaic panel 02, thereby preventing the photovoltaic panel 02 from swaying due to the influence of the eddies. This gives the photovoltaic vibration damping and cleaning device 01 of this embodiment the advantage of being able to improve the wind resistance stability of the photovoltaic support 03 and remove sand and dust from the photovoltaic panel 02.

[0033] In addition, the south or north wind blowing onto the photovoltaic support 03 is guided into the first component 21 or the second component 22 and blows on the photovoltaic panel 02, increasing the airflow velocity on the surface of the photovoltaic panel 02, improving the heat transfer coefficient between the photovoltaic panel 02 and the airflow, and reducing the temperature of the photovoltaic panel 02. This gives the photovoltaic vibration damping and cleaning device 01 of the present invention the advantage of better cooling effect on the photovoltaic panel 02.

[0034] It is understood that the photovoltaic vibration damping and cleaning device 01 of this embodiment of the invention does not have an external power supply and adopts a passive working method to blow clean and dampen the photovoltaic panel 02. On the one hand, it has the advantage of energy saving, and on the other hand, it reduces the failure rate of the photovoltaic vibration damping and cleaning device 01 of this embodiment of the invention and improves the reliability of the photovoltaic vibration damping and cleaning device 01 of this embodiment of the invention.

[0035] In some embodiments, the first component 21 is unidirectionally connected to the first air inlet 11 so that the airflow entering the first air inlet 11 is discharged through the first component 21, and the second component 22 is unidirectionally connected to the second air inlet 12 so that the airflow entering the second air inlet 12 is discharged through the second component 22.

[0036] Specifically, in the case of a southerly wind, the southerly wind blowing towards the photovoltaic power generation system of this embodiment enters the photovoltaic vibration damping and cleaning device 01 of this embodiment through the first air inlet 11, and is sprayed towards the north end of the photovoltaic panel 02 through the first component 21, so as to sweep the photovoltaic panel 02 from the north end of the photovoltaic panel 02 and spray airflow out to the north side of the photovoltaic panel 02, thereby cleaning the upper surface of the photovoltaic panel 02 and disrupting the regular eddies generated by the southerly wind on the north side of the photovoltaic panel 02.

[0037] In the case of northerly winds, the northerly winds blowing towards the photovoltaic power generation system of this embodiment enter the photovoltaic vibration damping and cleaning device 01 of this embodiment through the second air inlet 12, and are sprayed towards the south end of the photovoltaic panel 02 through the second component 22, so as to sweep the photovoltaic panel 02 from the south end of the photovoltaic panel 02 and spray airflow out to the south side of the photovoltaic panel 02, thereby cleaning the upper surface of the photovoltaic panel 02 and disrupting the regular eddies generated by the northerly winds on the south side of the photovoltaic panel 02.

[0038] In some embodiments, the first component 21 includes a first air outlet 211 and a second air outlet 212. The first air outlet 211 is located on the lower side of the north end of the photovoltaic panel 02, and the first air outlet 211 bends and extends toward the photovoltaic panel 02 to guide airflow to the north side of the photovoltaic panel 02. The second air outlet 212 is located on the upper side of the north end of the photovoltaic panel 02, and the second air outlet 212 extends along the length direction of the photovoltaic panel 02 so that the airflow discharged through the second air outlet 212 flows along the upper surface of the photovoltaic panel 02. The second component 22 includes a third air outlet 221 and a fourth air outlet 222. The third air outlet 221 is located on the lower side of the south end of the photovoltaic panel 02, and the third air outlet 221 bends and extends toward the photovoltaic panel 02 to guide the airflow to the south side of the photovoltaic panel 02. The fourth air outlet 222 is located on the upper side of the south end of the photovoltaic panel 02, and the fourth air outlet 222 extends along the length of the photovoltaic panel 02 so that the airflow discharged through the fourth air outlet 222 flows along the upper surface of the photovoltaic panel 02.

[0039] The intersection of the geometric axis of the first air outlet 211 and the upper surface of the photovoltaic panel 02 has a first predetermined distance from the south end of the photovoltaic panel 02. The intersection of the geometric axis of the third air outlet 221 and the upper surface of the photovoltaic panel 02 has a second predetermined distance from the north end of the photovoltaic panel 02.

[0040] Specifically, both the first air outlet 211 and the second air outlet 212 are connected to the first air inlet 11, such as... Figure 1 As shown, in the case of a southerly wind, the airflow follows... Figure 1 The airflow enters the air intake component 1 from the first air inlet 11 and exits from the first air outlet 211 and the second air outlet 212 in the direction of a. At this time, the airflow is on the north side of the photovoltaic panel 02 as follows: Figure 1A vortex is generated at point d. The first air outlet 211 is located on the lower side of the north end of the photovoltaic panel 02. The first air outlet 211 is curved upward, and the airflow discharged from the first air outlet 211 follows... Figure 1 Discharged in the direction of b, to disturb as Figure 1 The vortex at point d, the airflow discharged from the second outlet 212 along... Figure 1 The flow in the c-direction cleans the upper surface of the photovoltaic panel 02.

[0041] In addition, the airflow discharged from the second air outlet 212, under the influence of the southerly wind, disturbs part of the southerly wind blowing onto the surface of the photovoltaic panel 02, which has an impact on... Figure 1 The eddy current at point d also has a certain disturbance effect, further disrupting the regular eddy current downstream of photovoltaic panel 02 and reducing the swaying of photovoltaic panel 02 under southerly wind conditions.

[0042] It is understandable that, such as Figure 2 As shown, in the case of a northerly wind, the airflow follows... Figure 2 The airflow enters the air intake component 1 from the second air inlet 12 and exits from the third air outlet 221 and the fourth air outlet 222. At this time, the airflow is on the south side of the photovoltaic panel 02. Figure 2 A vortex is generated at point h. The third air outlet 221 is located on the lower side of the south end of the photovoltaic panel 02. The third air outlet 221 is curved upwards, and the airflow discharged from the third air outlet 221 follows... Figure 2 Discharged in the middle f direction to disturb as Figure 2 The vortex at point h, the airflow discharged from the fourth outlet 222 along... Figure 2 The flow in the middle g direction is used to clean the upper surface of the photovoltaic panel 02.

[0043] In addition, the airflow discharged from the fourth air outlet 222, in a northerly wind environment, disturbs part of the northerly wind blowing onto the surface of the photovoltaic panel 02, which has an impact on... Figure 2 The eddy current at point h also has a certain disturbance effect, further disrupting the regular eddy current downstream of photovoltaic panel 02 and reducing the swaying of photovoltaic panel 02 under northerly wind conditions.

[0044] In some embodiments, the flow area of ​​the first air inlet 11 gradually decreases from south to north, and the flow area at the southern end of the first air inlet 11 is greater than the sum of the flow area of ​​the first air outlet 211 and the flow area of ​​the second air outlet 212. The flow area of ​​the second air inlet 12 gradually decreases from north to south, and the flow area at the north end of the second air inlet 12 is greater than the sum of the flow areas of the third air outlet 221 and the fourth air outlet 222.

[0045] Specifically, in a southerly wind environment, the airflow enters from the first air inlet 11 and exits from the first air outlet 211 and the second air outlet 212. During this process, the flow area of ​​the airflow gradually decreases to increase the flow velocity of the airflow exiting from the first air outlet 211 and the second air outlet 212. On the one hand, this increases the disturbance effect of the airflow exiting from the first air outlet 211 on the vortex downstream of the photovoltaic panel 02, and on the other hand, it increases the cleaning effect of the airflow exiting from the second air outlet 212 on the upper surface of the photovoltaic panel 02.

[0046] Similarly, in a northerly wind environment, the airflow enters from the second air inlet 12 and exits from the third air outlet 221 and the fourth air outlet 222. During this process, the flow area of ​​the airflow gradually decreases to increase the flow velocity of the airflow exiting from the third air outlet 221 and the fourth air outlet 222. On the one hand, this increases the disturbance effect of the airflow exiting from the third air outlet 221 on the vortex downstream of the photovoltaic panel 02, and on the other hand, it increases the cleaning effect of the airflow exiting from the fourth air outlet 222 on the upper surface of the photovoltaic panel 02.

[0047] In some embodiments, there are multiple first air outlets 211, which are evenly spaced along the width direction of the photovoltaic panel 02; and there are multiple second air outlets 212, which are evenly spaced along the width direction of the photovoltaic panel 02. There are multiple third air outlets 221, which are evenly spaced along the width direction of the photovoltaic panel 02. There are multiple fourth air outlets 222, which are evenly spaced along the width direction of the photovoltaic panel 02.

[0048] Specifically, such as Figure 3 As shown, multiple first air outlets 211 are evenly spaced along the east-west direction, multiple second air outlets 212 are evenly spaced along the east-west direction, multiple third air outlets 221 are evenly spaced along the east-west direction, and multiple fourth air outlets 222 are evenly spaced along the east-west direction.

[0049] Therefore, when the photovoltaic power generation system of this embodiment is exposed to southerly or northerly winds, the airflow discharged from the first air outlet 211 and the second air outlet 212 or the airflow discharged from the third air outlet 221 and the fourth air outlet 222 is evenly distributed in the east-west direction. On the one hand, this improves the cleaning effect on various positions along the length of the photovoltaic panel 02, and on the other hand, it can evenly disturb the eddies downstream of the photovoltaic panel 02 in the east-west direction, thereby improving the wind resistance stability of the photovoltaic power generation system of this embodiment.

[0050] In some embodiments, there are multiple first air inlets 11, which are arranged at intervals along the vertical direction, and there are multiple second air inlets 12, which are arranged at intervals along the vertical direction.

[0051] Specifically, such as Figure 1 and Figure 2 As shown, multiple first air inlets 11 are located on the south side of the photovoltaic bracket 03 and are arranged vertically to increase the total air intake of the air intake component 1 under southerly wind conditions and increase the flow velocity of the air discharged from the first air outlet 211 and the second air outlet 212. Multiple second air inlets 12 are located on the north side of the photovoltaic bracket 03 and are arranged vertically to increase the total air intake of the air intake component 1 under southerly wind conditions and increase the flow velocity of the air discharged from the third air outlet 221 and the fourth air outlet 222.

[0052] Therefore, on the one hand, the cleaning effect on the upper surface of the photovoltaic panel 02 is further improved, and on the other hand, the eddy current downstream of the photovoltaic panel 02 is further disturbed, thereby improving the wind resistance stability of the photovoltaic power generation system in this embodiment of the invention.

[0053] In some embodiments, the first air inlet 11 and the second air inlet 12 are respectively provided with filters to filter out impurities in the airflow entering the air intake assembly 1.

[0054] The photovoltaic power generation system of this invention includes a photovoltaic vibration damping and cleaning device 01, a photovoltaic panel 02, and a photovoltaic support 03. The photovoltaic vibration damping and cleaning device 01 can be the photovoltaic vibration damping and cleaning device 01 in any of the above embodiments. The photovoltaic panel 02 is disposed at the upper end of the photovoltaic support 03, and the photovoltaic vibration damping and cleaning device 01 is disposed between the photovoltaic support 03 and the photovoltaic panel 02.

[0055] In some embodiments, there are multiple photovoltaic panels 02, multiple photovoltaic brackets 03, and multiple photovoltaic vibration damping and cleaning devices 01, with the photovoltaic panels 02, photovoltaic brackets 03, and photovoltaic vibration damping and cleaning devices 01 arranged in a one-to-one correspondence.

[0056] The photovoltaic vibration damping and cleaning device 01 of this embodiment of the invention provides a first air inlet 11 and a second air inlet 12 on the photovoltaic support 03, and a first component 21 and a second component 22 on the photovoltaic panel 02. In the case of southerly winds, the southerly winds blowing towards the photovoltaic power generation system of this embodiment of the invention are guided to the north end of the photovoltaic panel 02 to sweep the photovoltaic panel 02 from the north end and spray airflow onto the north side of the photovoltaic panel 02. This cleans the upper surface of the photovoltaic panel 02 while disrupting the regular eddies generated by the southerly winds on the north side of the photovoltaic panel 02. In the case of northerly winds, the northerly winds blowing towards the photovoltaic power generation system of this embodiment of the invention are guided to the south end of the photovoltaic panel 02 to sweep the photovoltaic panel 02 from the south end and spray airflow onto the south side of the photovoltaic panel 02. This cleans the upper surface of the photovoltaic panel 02 while disrupting the regular eddies generated by the northerly winds on the south side of the photovoltaic panel 02.

[0057] Therefore, when the photovoltaic power generation system of this embodiment is in the south wind or north wind, the photovoltaic vibration damping and cleaning device 01 of this embodiment can blow away and clean the dust and other foreign objects on the upper surface of the photovoltaic panel 02 and destroy the regular eddies generated downstream of the photovoltaic panel 02, thereby preventing the photovoltaic panel 02 from swaying due to the influence of the eddies, so that the photovoltaic power generation system of this embodiment has the advantage of high power generation efficiency.

[0058] In addition, the south or north wind blowing onto the photovoltaic support 03 is guided into the first component 21 or the second component 22 and blows on the photovoltaic panel 02, which increases the airflow velocity on the surface of the photovoltaic panel 02, improves the heat transfer coefficient between the photovoltaic panel 02 and the airflow, and reduces the temperature of the photovoltaic panel 02, so that the photovoltaic power generation system of the present invention has the advantage of high power generation efficiency.

[0059] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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, an electrical connection, or a connection that allows communication between them; 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.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A photovoltaic vibration damping and cleaning device, characterized in that, include: An air intake assembly is adapted to be installed on a photovoltaic bracket that extends in an east-west direction. The air intake assembly includes a first air inlet and a second air inlet, wherein the opening of the first air inlet faces the south side of the photovoltaic bracket and the opening of the second air inlet faces the north side of the photovoltaic bracket. An exhaust assembly, adapted to be installed on a photovoltaic panel, includes a first assembly and a second assembly. The first assembly is located on the north side of the photovoltaic panel to blow away the photovoltaic panel and disrupt the vortex on the north side of the photovoltaic panel. The second assembly is located on the south side of the photovoltaic panel to blow away the photovoltaic panel and disrupt the vortex on the south side of the photovoltaic panel. The first assembly is unidirectionally connected to the first air inlet so that airflow entering the first air inlet is discharged through the first assembly. The second assembly is unidirectionally connected to the second air inlet so that airflow entering the second air inlet is discharged through the second assembly. A valve is connected between the air inlet assembly and the air outlet assembly to allow airflow entering the air inlet assembly to flow unidirectionally to the air outlet assembly; The first component includes a first air outlet and a second air outlet. The first air outlet is located on the lower side of the north end of the photovoltaic panel, and the first air outlet bends and extends toward the photovoltaic panel to guide the airflow to the north side of the photovoltaic panel. The second air outlet is located on the upper side of the north end of the photovoltaic panel, and the second air outlet extends along the length of the photovoltaic panel so that the airflow discharged through the second air outlet flows along the upper surface of the photovoltaic panel. The second component includes a third air outlet and a fourth air outlet. The third air outlet is located on the lower side of the south end of the photovoltaic panel, and the third air outlet bends and extends toward the photovoltaic panel to guide airflow to the south side of the photovoltaic panel. The fourth air outlet is located on the upper side of the south end of the photovoltaic panel, and the fourth air outlet extends along the length of the photovoltaic panel so that the airflow discharged through the fourth air outlet flows along the upper surface of the photovoltaic panel.

2. The photovoltaic vibration damping and cleaning device according to claim 1, characterized in that, The intersection of the geometric axis of the first air outlet and the upper surface of the photovoltaic panel has a first predetermined distance from the south end of the photovoltaic panel; The intersection of the geometric axis of the third air outlet and the upper surface of the photovoltaic panel has a second predetermined distance from the north end of the photovoltaic panel.

3. The photovoltaic vibration damping and cleaning device according to claim 1, characterized in that, The flow area of ​​the first air inlet gradually decreases from south to north, and the flow area at the southern end of the first air inlet is greater than the sum of the flow area of ​​the first air outlet and the flow area of ​​the second air outlet. The flow area of ​​the second air inlet gradually decreases from north to south, and the flow area at the north end of the second air inlet is greater than the sum of the flow areas of the third air outlet and the fourth air outlet.

4. The photovoltaic vibration damping and cleaning device according to claim 1, characterized in that, There are multiple first air outlets, which are evenly spaced along the width direction of the photovoltaic panel; there are also multiple second air outlets, which are evenly spaced along the width direction of the photovoltaic panel. There are multiple third air outlets, which are evenly spaced along the width direction of the photovoltaic panel. There are also multiple fourth air outlets, which are evenly spaced along the width direction of the photovoltaic panel.

5. The photovoltaic vibration damping and cleaning device according to claim 1, characterized in that, There are multiple first air inlets, which are arranged at intervals along the vertical direction. There are also multiple second air inlets, which are arranged at intervals along the vertical direction.

6. The photovoltaic vibration damping and cleaning device according to claim 5, characterized in that, The first air inlet and the second air inlet are respectively equipped with filters to filter out impurities in the airflow entering the air intake assembly.

7. A photovoltaic power generation system, characterized in that, The device includes a photovoltaic vibration damping and cleaning device, a photovoltaic panel, and a photovoltaic support. The photovoltaic vibration damping and cleaning device is the same as that claimed in any one of claims 1-6. The photovoltaic panel is disposed at the upper end of the photovoltaic support, and the photovoltaic vibration damping and cleaning device is disposed between the photovoltaic support and the photovoltaic panel.

8. The photovoltaic power generation system according to claim 7, characterized in that, There are multiple photovoltaic panels, multiple photovoltaic brackets, and multiple photovoltaic vibration damping and cleaning devices. The photovoltaic panels, photovoltaic brackets, and photovoltaic vibration damping and cleaning devices are arranged in a one-to-one correspondence.

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