Photovoltaic module cleaning and radiating device

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and discloses a photovoltaic module cleaning and radiating device, which comprises a spraying mechanism, a dust detector, a temperature sensor and a control system. The spraying mechanism comprises a water tank, a liquid supply assembly and a plurality of nozzles surrounding the photovoltaic module, the liquid supply assembly is used for conveying water in the water tank to each nozzle, and the plurality of nozzles have a single cleaning working mode, a single heat dissipation working mode and a cleaning heat dissipation working mode; the dust detector and the temperature sensor are arranged on the photovoltaic module; the control system is in communication connection with the dust detector, the temperature sensor and the multiple nozzles, and the control system is used for controlling the multiple nozzles to execute a single cleaning working mode, a single heat dissipation working mode or a cleaning heat dissipation working mode according to the real-time cleanliness detected by the dust detector and the real-time temperature detected by the temperature sensor. The photovoltaic module cleaning and heat dissipation device can enable the photovoltaic module to operate in ideal temperature and illumination environments, and improves the power generation efficiency of the photovoltaic module.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a cleaning and heat dissipation device for photovoltaic modules. Background Art

[0002] The panel of a photovoltaic module is made of tempered glass. When it is exposed to the air for a long time, a large amount of dust will accumulate. The accumulated dust will block light, reduce the output efficiency of the photovoltaic module, affect the power generation amount, and even cause the "hot spot" effect, resulting in damage to the photovoltaic module. Moreover, data shows that for every 1°C increase in the temperature of the photovoltaic module, the output power will decrease by 0.04%. Therefore, it is important to keep the photovoltaic module operating in an ideal temperature and light environment.

[0003] The existing cleaning and cooling devices for photovoltaic modules generally include a brush, a spraying mechanism and a temperature sensor. When the temperature of the photovoltaic module detected by the temperature sensor exceeds the threshold, the spraying mechanism will be activated for cooling, and after cooling, the brush will be used to clean the dust on the photovoltaic module. Although this structure can achieve the cleaning and cooling of the photovoltaic module, it can only clean the photovoltaic module after there is a need for cooling, or can only clean the photovoltaic module regularly. It cannot monitor the cleanliness of the photovoltaic module in real time to effectively ensure the cleanliness of the surface of the photovoltaic module, seriously affecting the power generation efficiency of the photovoltaic module, and the structure is also relatively complex.

[0004] Therefore, there is an urgent need to propose a cleaning and heat dissipation device for photovoltaic modules to solve the above technical problems. Summary of the Utility Model

[0005] The utility model provides a cleaning and heat dissipation device for photovoltaic modules, which can monitor the cleanliness and temperature rise of the photovoltaic module in real time, and clean and cool the photovoltaic module in a timely manner according to the monitoring results, so that the photovoltaic module can operate in an ideal temperature and light environment, greatly improving the power generation efficiency of the photovoltaic module, and having a simple structure, convenient control and low cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A cleaning and heat dissipation device for photovoltaic modules, comprising:

[0008] A spraying mechanism, including a water tank, a liquid supply component and a plurality of nozzles surrounding the photovoltaic module. The liquid supply component is used to transport the water in the water tank to each nozzle. The plurality of nozzles have a single cleaning working mode, a single heat dissipation working mode and a cleaning and heat dissipation working mode;

[0009] A dust detector, arranged on the photovoltaic module, for detecting the real-time cleanliness of the photovoltaic module;

[0010] A temperature sensor is disposed on the photovoltaic module for detecting the real-time temperature of the photovoltaic module;

[0011] A control system is communicatively connected to the dust detector, the temperature sensor, and the plurality of nozzles. The control system is configured to control the plurality of nozzles to execute the single cleaning operation mode, the single heat dissipation operation mode, or the cleaning and heat dissipation operation mode according to the real-time cleanliness and the real-time temperature.

[0012] Optionally, the photovoltaic module cleaning and heat dissipation device further includes a mounting frame. The photovoltaic module is inclined and disposed on the mounting frame. A part of the plurality of nozzles are spray nozzles disposed on the top of the photovoltaic module, and another part are atomizing nozzles disposed on both sides of the photovoltaic module;

[0013] When the plurality of nozzles execute the single cleaning operation mode, all the spray nozzles spray water onto the photovoltaic module simultaneously to wash the photovoltaic module;

[0014] When the plurality of nozzles execute the single heat dissipation operation mode, all the atomizing nozzles spray atomized water onto the photovoltaic module simultaneously to cool the photovoltaic module;

[0015] When the plurality of nozzles execute the cleaning and heat dissipation operation mode, all the spray nozzles spray water onto the photovoltaic module simultaneously, and all the atomizing nozzles spray atomized water onto the photovoltaic module simultaneously.

[0016] Optionally, the spraying mechanism further includes:

[0017] A liquid collecting tank is disposed at the bottom of the photovoltaic module for receiving cleaning water or cooling water;

[0018] A liquid return assembly for transporting the water in the liquid collecting tank to the water tank;

[0019] A sewage discharge assembly for discharging the sewage located at the bottom of the water tank after precipitation.

[0020] Optionally, the spraying mechanism further includes a water replenishing assembly and a water level sensor disposed in the water tank. The water replenishing assembly is communicatively connected to the water level sensor. The water replenishing assembly is configured to transport clean water into the water tank when the water level value detected by the water level sensor is lower than a preset value.

[0021] Optionally, a filtering unit is provided at the outlet of the water tank. The water in the water tank is filtered by the filtering unit and then transported to each nozzle by the liquid supply assembly.

[0022] Optionally, the mounting frame includes:

[0023] At least two front columns;

[0024] At least two rear columns, which are arranged in one-to-one correspondence with the front columns, and the length of the rear columns is greater than that of the front columns;

[0025] At least two diagonal beams, which are arranged in one-to-one correspondence with the front columns, and the diagonal beams connect the corresponding front columns and rear columns;

[0026] A plurality of cross beams are arranged in parallel at intervals along the length direction of the diagonal beams, and each cross beam connects all the diagonal beams, and the photovoltaic modules are installed on all the cross beams.

[0027] Optionally, a frame is provided around the photovoltaic module, a liquid flow channel is provided inside the frame, a plurality of the nozzles are arranged on the frame and are all communicated with the liquid flow channel, and the liquid supply assembly is used to convey the water in the water tank into the liquid flow channel.

[0028] Optionally, a plurality of the photovoltaic modules are provided, and the liquid flow channels of two adjacent photovoltaic modules are communicated through a water delivery pipeline. A plurality of the photovoltaic modules share one water tank and one liquid supply assembly, and the liquid supply assembly is used to convey the water in the water tank into one of the liquid flow channels.

[0029] Optionally, the liquid supply assembly includes a first liquid supply pipeline, a second liquid supply pipeline and a water pump. One end of the first liquid supply pipeline is communicated with the water tank, and the other end is communicated with the inlet of the water pump. One end of the second liquid supply pipeline is communicated with the outlet of the water pump, and the other end is communicated with one of the liquid flow channels.

[0030] Optionally, an overflow port is provided at the upper part of the water tank.

[0031] Advantages of the present utility model:

[0032] The present utility model provides a cleaning and heat dissipation device for a photovoltaic module, including a spraying mechanism, a dust detector, a temperature sensor and a control system. The control system can control the plurality of nozzles of the spraying mechanism to execute a single cleaning working mode, a single heat dissipation working mode or a cleaning and heat dissipation working mode according to the real-time cleanliness of the photovoltaic module detected by the dust detector and the real-time temperature of the photovoltaic module detected by the temperature sensor, so that the photovoltaic module can always work under ideal temperature and light conditions, greatly improving the power generation efficiency of the photovoltaic module and also being beneficial to extending the service life of the photovoltaic module. Moreover, the control system controls the plurality of nozzles to execute the corresponding working mode according to the cleanliness and temperature of the photovoltaic module, which is beneficial to saving water resources.

[0033] The cleaning and cooling of the photovoltaic module can be realized through the control system, and the control is convenient. Moreover, the cleaning and heat dissipation device for the photovoltaic module has a simple structure and a low cost. Brief Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present invention and these drawings.

[0035] Figure 1 is the assembly drawing of the photovoltaic module and the mounting rack provided by the embodiment of the present invention;

[0036] Figure 2 is a partial schematic diagram of the assembly drawing of the nozzle and the frame;

[0037] Figure 3 is the connection schematic diagram between two photovoltaic modules provided by the embodiment of the present invention;

[0038] Figure 4 is the schematic diagram of the spraying mechanism provided by the embodiment of the present invention.

[0039] In the figure:

[0040] 10. Photovoltaic module;

[0041] 100. Water tank; 110. Overflow port; 200. Liquid supply assembly; 210. First liquid supply pipeline; 220. Second liquid supply pipeline; 230. Water pump; 300. Nozzle; 310. Spraying nozzle; 320. Atomizing nozzle; 400. Control system; 500. Mounting rack; 510. Front column; 520. Rear column; 530. Diagonal beam; 540. Cross beam; 600. Liquid collecting tank; 700. Liquid return assembly; 710. Liquid return pipeline; 720. Liquid return valve; 800. Sewage discharge assembly; 810. Sewage discharge pipeline; 820. Sewage discharge valve; 900. Frame; 910. Nozzle support; 1000. Water delivery pipeline. Detailed Embodiments

[0042] The following will further describe the present invention in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of convenience of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0043] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0045] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] This embodiment provides a cleaning and heat dissipation device for a photovoltaic module, which can monitor the cleanliness and temperature rise of the photovoltaic module in real time, and clean and cool the photovoltaic module in a timely manner according to the monitoring results, so that the photovoltaic module can operate in an ideal temperature and light environment, greatly improving the power generation efficiency of the photovoltaic module, and having a simple structure, convenient control, and low cost.

[0047] Specifically, as Figures 1 - 4 shown, the cleaning and heat dissipation device for the photovoltaic module includes a spraying mechanism, a dust detector, a temperature sensor, and a control system 400.

[0048] Among them, the spraying mechanism includes a water tank 100, a liquid supply assembly 200, and a plurality of nozzles 300 surrounding the photovoltaic module 10. The liquid supply assembly 200 is used to convey the water in the water tank 100 to each nozzle 300. The plurality of nozzles 300 have a single cleaning working mode, a single heat dissipation working mode, and a cleaning and heat dissipation working mode. In the single cleaning working mode, the plurality of nozzles 300 clean the photovoltaic module 10 to remove the dust attached to the surface of the photovoltaic module 10, avoiding dust blocking the photovoltaic module 10, so that the photovoltaic module 10 can work under ideal illumination. In the single heat dissipation working mode, the plurality of nozzles 300 spray and cool the photovoltaic module 10, so that the photovoltaic module 10 can work at an ideal temperature. In the cleaning and heat dissipation working mode, the plurality of nozzles 300 clean and cool the photovoltaic module 10 simultaneously.

[0049] A dust detector (not shown in the figure) and a temperature sensor (not shown in the figure) are both arranged on the photovoltaic module 10. The dust detector is used to detect the real-time cleanliness of the photovoltaic module 10, and the temperature sensor is used to detect the real-time temperature of the photovoltaic module 10.

[0050] The control system 400 is communicatively connected to the dust detector, the temperature sensor, and the plurality of nozzles 300. The control system 400 is used to control the plurality of nozzles 300 to execute the single cleaning working mode, the single heat dissipation working mode, or the cleaning and heat dissipation working mode according to the real-time cleanliness and the real-time temperature.

[0051] Exemplarily, if the control system 400 obtains that the surface of the photovoltaic module 10 is unclean and the temperature is not high according to the real-time cleanliness and the real-time temperature, it controls the plurality of nozzles 300 to execute the single cleaning working mode, and only the cleaning of the photovoltaic module 10 is required. At this time, the photovoltaic module 10 has no cooling requirement.

[0052] If the control system 400 obtains that the surface of the photovoltaic module 10 is clean and the temperature is relatively high according to the real-time cleanliness and the real-time temperature, it controls the plurality of nozzles 300 to execute the single heat dissipation working mode, and only the heat dissipation of the photovoltaic module 10 is required. At this time, the photovoltaic module 10 has no cleaning requirement.

[0053] The photovoltaic module cleaning and heat dissipation device provided in this embodiment can detect the cleanliness and temperature of the photovoltaic module 10 in real time through the dust detector and the temperature sensor, and control the plurality of nozzles 300 to execute corresponding working modes according to the detection results, so that the photovoltaic module 10 can always work under ideal temperature and illumination, greatly improving the power generation efficiency of the photovoltaic module 10, and also being beneficial to extending the service life of the photovoltaic module 10. Moreover, the control system 400 controls the plurality of nozzles 300 to execute corresponding working modes according to the cleanliness and temperature of the photovoltaic module 10, with a simple structure and convenient control, and is also beneficial to saving water resources.

[0054] It should be noted that if the control system 400 determines that the surface of the photovoltaic module 10 is clean and the temperature is not high based on the real-time cleanliness and real-time temperature, all the nozzles 300 will not operate.

[0055] Optionally, referring further to Figure 1 and Figure 3 , the above-mentioned photovoltaic module cleaning and heat dissipation device further includes a mounting rack 500. The photovoltaic module 10 is inclined and arranged on the mounting rack 500. A part of the multiple nozzles 300 are spray nozzles 310 arranged at the top of the photovoltaic module 10, and the other part are atomizing nozzles 320 arranged on both sides of the photovoltaic module 10. The spray nozzles 310 are used to clean the photovoltaic module 10, and the atomizing nozzles 320 are used to cool the photovoltaic module 10.

[0056] Specifically, when the multiple nozzles 300 execute the single cleaning working mode, all the spray nozzles 310 spray water onto the photovoltaic module 10 simultaneously to wash the photovoltaic module 10.

[0057] When the multiple nozzles 300 execute the single heat dissipation working mode, all the atomizing nozzles 320 spray atomized water onto the photovoltaic module 10 simultaneously to cool the photovoltaic module 10;

[0058] When the multiple nozzles 300 execute the cleaning and heat dissipation working mode, all the spray nozzles 310 spray water onto the photovoltaic module 10 simultaneously, and all the atomizing nozzles 320 spray atomized water onto the photovoltaic module 10 simultaneously.

[0059] By arranging the photovoltaic module 10 in an inclined manner and arranging the spray nozzles 310 at the top of the photovoltaic module 10, the photovoltaic module 10 can be comprehensively cleaned only by the spray nozzles 310 arranged at the top of the photovoltaic module 10, which is beneficial to reducing the number of spray nozzles 310 arranged. By using the atomizing nozzles 320 during heat dissipation, the water consumption can be greatly reduced and water resources can be saved.

[0060] It should be noted that the water sprayed by all the spray nozzles 310 should be able to cover one side of the top of the photovoltaic module 10 to ensure the comprehensive cleaning of the photovoltaic module 10.

[0061] It should be noted that the water sprayed by all the atomizing nozzles 320 should be able to cover all the photovoltaic modules 10 so that the temperatures at various parts of the photovoltaic modules 10 are uniform.

[0062] Furthermore, referring further to Figure 1 , Figure 3 and Figure 4, the spraying mechanism further includes a liquid collecting tank 600, a liquid returning assembly 700, and a sewage discharging assembly 800. Among them, the liquid collecting tank 600 is arranged at the bottom of the photovoltaic module 10 and is used to receive cleaning water or cooling water. The cleaning water refers to the water after cleaning the photovoltaic module 10, and the cooling water refers to the water after heat exchange with the photovoltaic module 10. The liquid returning assembly 700 is used to transport the sewage in the liquid collecting tank 600 to the water tank 100. The sewage discharging assembly 800 is used to discharge the sewage located at the bottom of the water tank 100 after precipitation. Through the liquid collecting tank 600, the liquid returning assembly 700, and the sewage discharging assembly 800, the recycling of the water in the water tank 100 can be realized, reducing the waste of water resources.

[0063] Optionally, continue to refer to Figure 4 , in this embodiment, the liquid returning assembly 700 includes a liquid returning pipeline 710 and a liquid returning valve 720. One end of the liquid returning pipeline 710 is communicated with the liquid collecting tank 600, and the other end is communicated with the water tank 100. The liquid returning valve 720 is used to control the on-off of the liquid returning pipeline 710. This liquid returning assembly 700 has a simple structure and is convenient to control.

[0064] It is worth noting that in addition to being able to receive cleaning water and cooling water, the liquid collecting tank 600 can also receive rainwater, realizing the reuse of rainwater and improving the utilization rate of water resources.

[0065] Optionally, in this embodiment, the sewage discharging assembly 800 includes a sewage discharging pipeline 810 and a sewage discharging valve 820. One end of the sewage discharging pipeline 810 is communicated with the bottom of the water tank 100, and the sewage discharging valve 820 is used to control the on-off of the sewage discharging pipeline 810. This sewage discharging assembly 800 has a simple structure and is convenient to control.

[0066] It can be understood that the sewage discharging pipeline 810 can directly discharge the sewage into the land environment where the photovoltaic module 10 is installed.

[0067] Optionally, continue to refer to Figure 4 , a sewage discharging assembly 800 can also be arranged on the liquid returning pipeline 710 to clean the dirt such as sediment deposited in the liquid returning pipeline 710, thereby reducing the risk of blockage of the liquid returning pipeline 710 and improving the working reliability of the liquid returning assembly 700.

[0068] Further, the spraying mechanism further includes a water replenishing component (not shown in the figure) and a water level sensor (not shown in the figure) disposed in the water tank 100. The water replenishing component is communicatively connected to the water level sensor, and the water replenishing component is configured to convey clean water into the water tank 100 when the water level value detected by the water level sensor is lower than a preset value. Since the sewage in the water tank 100 will be drained away, after long-term use, the water in the water tank 100 will become less and less. Therefore, it is necessary to replenish water to the water tank 100 to ensure the cleanliness of the spraying mechanism and the reliability of the cooling operation. Through the cooperation of the water replenishing component and the water level sensor in this embodiment, the water in the water tank 100 can be kept full at all times, improving the reliability of the operation of the water tank 100.

[0069] Optionally, the water replenishing component includes a water replenishing pipeline and a water replenishing valve. One end of the water replenishing pipeline is communicated with a water source, and the other end is communicated with the water tank 100. The water replenishing valve is configured to control the on-off of the water replenishing pipeline. This water replenishing component has a simple structure and is easy to control.

[0070] Further, a filtering unit (not shown in the figure) can also be disposed at the outlet of the water tank 100. The water in the water tank 100 is filtered by the filtering unit and then conveyed to each nozzle 300 by the liquid supply component 200. By providing the filtering unit, the cleanliness of the spraying water and the cooling water can be further improved.

[0071] Optionally, in a possible embodiment, the filtering unit can be a filter mesh.

[0072] Optionally, continue to refer to Figure 1 , in this embodiment, the mounting frame 500 includes at least two front columns 510, at least two rear columns 520, at least two inclined beams 530, and multiple cross beams 540. Among them, the rear columns 520 are arranged corresponding to the front columns 510 one by one, and the length of the rear columns 520 is greater than that of the front columns 510. The inclined beams 530 are arranged corresponding to the front columns 510 one by one, and the inclined beams 530 connect the corresponding front columns 510 and rear columns 520. The multiple cross beams 540 are arranged in parallel at intervals along the length direction of the inclined beams 530, and each cross beam 540 connects all the inclined beams 530. The photovoltaic module 10 is installed on all the cross beams 540. This mounting frame 500 has a simple structure and low cost.

[0073] Further, continue to refer to Figure 2 and Figure 3 , a frame 900 is provided on the periphery of the photovoltaic module 10. A liquid flow channel is provided in the frame 900. A plurality of nozzles 300 are provided on the frame 900 and are all communicated with the liquid flow channel. The liquid supply component 200 is configured to convey the water in the water tank 100 into the liquid flow channel. By providing the liquid flow channel in the frame 900, the use of pipelines can be reduced, and the material cost of the pipelines and the construction cost of laying the pipelines are reduced.

[0074] Optionally, continue to refer toFigure 2 A nozzle 300 support can be set on the frame 900, and the nozzle 300 is installed on the nozzle 300 support. By setting the nozzle 300 support, the nozzle 300 is fixed on the frame 900, improving the stability of the installation of the nozzle 300 and reducing the installation difficulty of the nozzle 300.

[0075] Further, continue to refer to Figure 3 As shown in the figure, there are multiple photovoltaic modules 10. The liquid flow channels of two adjacent photovoltaic modules 10 are connected through a water delivery pipeline 1000. Multiple photovoltaic modules 10 share a water tank 100 and a liquid supply assembly 200. The liquid supply assembly 200 is used to deliver the water in the water tank 100 into a liquid flow channel. With such a setting, the water supply to multiple nozzles 300 on multiple photovoltaic modules 10 can be realized through one water tank 100 and one liquid supply assembly 200, reducing the number of components and the cost.

[0076] Optionally, continue to refer to Figure 4 In this embodiment, the liquid supply assembly 200 includes a first liquid supply pipeline 210, a second liquid supply pipeline 220 and a water pump 230. One end of the first liquid supply pipeline 210 is connected to the water tank 100, and the other end is connected to the inlet of the water pump 230. One end of the second liquid supply pipeline 220 is connected to the outlet of the water pump 230, and the other end is connected to a liquid flow channel. The control system 400 can control the liquid supply of the liquid supply assembly 200 by controlling the start and stop of the water pump 230. The structure is simple and the control is convenient.

[0077] Further, continue to refer to Figure 4 An overflow port 110 is further provided on the water tank 100. The overflow port 110 is used to discharge the excess water in the water tank 100 to ensure the water pressure in the water tank 100.

[0078] The working process of the photovoltaic module cleaning and heat dissipation device provided in this embodiment is as follows:

[0079] Step 1: The control system 400 obtains the real-time cleanliness and real-time temperature;

[0080] Step 2: The control system 400 determines whether the real-time cleanliness is lower than the cleanliness threshold and whether the real-time temperature is higher than the temperature threshold;

[0081] If the real-time cleanliness is lower than the cleanliness threshold and the real-time temperature is lower than or equal to the temperature threshold, the control system 400 controls multiple nozzles 300 to execute the single cleaning working mode;

[0082] If the real-time cleanliness is lower than the cleanliness threshold and the real-time temperature is higher than the temperature threshold, the control system 400 controls multiple nozzles 300 to execute the cleaning and heat dissipation working mode;

[0083] If the real-time cleanliness is higher than or equal to the cleanliness threshold and the real-time temperature is higher than the temperature threshold, the control system 400 controls the multiple nozzles 300 to execute the single heat dissipation working mode.

[0084] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Photovoltaic module cleaning heat dissipation device, characterized in that: include: A spray mechanism comprises a water tank (100), a liquid supply component (200) and a plurality of nozzles (300) arranged around a photovoltaic component (10), wherein the liquid supply component (200) is used to transport water in the water tank (100) to each of the nozzles (300), and the plurality of nozzles (300) have a single cleaning working mode, a single heat dissipation working mode and a cleaning and heat dissipation working mode; A dust detector, arranged on the photovoltaic module (10) and used for detecting the real-time cleanliness of the photovoltaic module (10); A temperature sensor, arranged on the photovoltaic module (10), for detecting the real-time temperature of the photovoltaic module (10); A control system (400) is communicatively connected to the dust detector, the temperature sensor and the plurality of nozzles (300), and the control system (400) is used to control the plurality of nozzles (300) to execute the single cleaning working mode, the single cooling working mode or the cleaning and cooling working mode according to the real-time cleanliness and the real-time temperature.

2. The photovoltaic module cleaning and heat dissipation device according to claim 1, characterized in that: The photovoltaic module cleaning and heat dissipation device further comprises a mounting frame (500), the photovoltaic module (10) is obliquely arranged on the mounting frame (500), a portion of the plurality of nozzles (300) are spray nozzles (310) arranged on the top of the photovoltaic module (10), and another portion are atomizing nozzles (320) arranged on both sides of the photovoltaic module (10); When the plurality of nozzles (300) execute the single cleaning operation mode, all the spray nozzles (310) spray the photovoltaic assembly (10) at the same time to rinse the photovoltaic assembly (10); When the plurality of nozzles (300) execute the single heat dissipation working mode, all the atomizing nozzles (320) simultaneously spray atomized water toward the photovoltaic component (10) to cool the photovoltaic component (10); When the plurality of nozzles (300) execute the cleaning and heat dissipation working mode, all of the spray nozzles (310) spray the photovoltaic module (10) at the same time, and all of the atomizing nozzles (320) spray atomized water at the photovoltaic module (10) at the same time.

3. The photovoltaic module cleaning and heat dissipation device according to claim 2, characterized in that: The spray mechanism also includes: A liquid collecting tank (600), arranged at the bottom of the photovoltaic module (10), for receiving cleaning water or cooling water; A liquid return assembly (700) for conveying water in the liquid collecting tank (600) to the water tank (100); The sewage discharge assembly (800) is used to discharge sewage located at the bottom of the water tank (100) after sedimentation.

4. The photovoltaic module cleaning and heat dissipation device according to claim 3, characterized in that: The spray mechanism further comprises a water replenishment component and a water level sensor arranged in the water tank (100), the water replenishment component being communicatively connected to the water level sensor, and the water replenishment component being used to deliver clean water to the water tank (100) when the water level value detected by the water level sensor is lower than a preset value.

5. The photovoltaic module cleaning and heat dissipation device according to claim 3, characterized in that: A filtering unit is provided at the outlet of the water tank (100); the water in the water tank (100) is filtered by the filtering unit and then transported to each nozzle (300) by the liquid supply assembly (200).

6. The photovoltaic module cleaning and heat dissipation device according to claim 2, characterized in that: The mounting frame (500) comprises: at least two front uprights (510); at least two rear columns (520), the rear columns (520) being arranged in one-to-one correspondence with the front columns (510), and the length of the rear columns (520) being greater than the length of the front columns (510); at least two inclined beams (530), the inclined beams (530) being arranged in one-to-one correspondence with the front pillars (510), and the inclined beams (530) connecting the corresponding front pillars (510) and the rear pillars (520); A plurality of cross beams (540) are arranged in parallel and at intervals along the length direction of the inclined beams (530); each cross beam (540) connects all the inclined beams (530); and the photovoltaic modules (10) are mounted on all the cross beams (540).

7. The photovoltaic module cleaning and heat dissipation device according to any one of claims 1 to 6, characterized in that: The photovoltaic assembly (10) is provided with a frame (900) on its periphery, a liquid flow channel is provided in the frame (900), a plurality of nozzles (300) are arranged on the frame (900) and are all connected to the liquid flow channel, and the liquid supply assembly (200) is used to transport water in the water tank (100) to the liquid flow channel.

8. The photovoltaic module cleaning and heat dissipation device according to claim 7, characterized in that: The photovoltaic modules (10) are provided in plurality, the liquid flow passages of two adjacent photovoltaic modules (10) are connected via a water delivery pipeline (1000), the plurality of photovoltaic modules (10) share one water tank (100) and one liquid supply module (200), and the liquid supply module (200) is used to transport water in the water tank (100) to one of the liquid flow passages.

9. The photovoltaic module cleaning and heat dissipation device according to claim 8, characterized in that: The liquid supply assembly (200) comprises a first liquid supply pipeline (210), a second liquid supply pipeline (220) and a water pump (230); one end of the first liquid supply pipeline (210) is connected to the water tank (100), and the other end is connected to the inlet of the water pump (230); one end of the second liquid supply pipeline (220) is connected to the outlet of the water pump (230), and the other end is connected to one of the liquid flow channels.

10. The photovoltaic module cleaning and heat dissipation device according to any one of claims 1 to 6, characterized in that: An overflow port (110) is provided at the upper portion of the water tank (100).

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