Distributed photovoltaic system

Abstract

The utility model discloses a distributed photovoltaic system, and belongs to the technical field of photovoltaic panels. A distributed photovoltaic system comprises a photovoltaic device body, the photovoltaic device body comprises a support and a photovoltaic panel fixedly arranged at the bevel edge of the support, and a collecting assembly used for collecting rainwater is fixedly arranged at the top of the support; a spraying mechanism for reducing the temperature of the photovoltaic panel by using rainwater collected by the collecting assembly is fixedly arranged at the top of the support, when it rains, the rainwater is collected by the collecting assembly, and when the temperature of the photovoltaic panel is too high, the rainwater collected by the collecting assembly is pumped out by the spraying mechanism to reduce the temperature of the photovoltaic panel, so that the photovoltaic panel can be cooled, and the temperature of the photovoltaic panel can be reduced. And dust on the surface of the photovoltaic panel can be washed away, so that the power generation efficiency is improved, and the situation that the output voltage is reduced along with the rise of the temperature is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panels, in particular to a distributed photovoltaic system. Background Art

[0002] Photovoltaic systems are generally divided into stand-alone systems, grid-connected systems and hybrid systems. Photovoltaic panel components are a type of power generation device that generates direct current when exposed to sunlight. They are composed of thin solid photovoltaic cells made almost entirely of semiconductor materials.

[0003] Since solar photovoltaic panels work in outdoor environments for a long time, their output voltage will decrease as the temperature rises during operation, resulting in a decrease in power generation efficiency. At higher temperatures, the overall power generation capacity of the photovoltaic power station will decrease significantly, affecting the power generation of the entire power station. Utility Model Content

[0004] The utility model provides a distributed photovoltaic system, which can overcome certain defects of the prior art.

[0005] According to a distributed photovoltaic system of the utility model, it includes a photovoltaic device body, which includes a support and a photovoltaic panel fixed at the oblique edge of the support, a collection component for collecting rainwater is fixed on the top of the support; a spraying mechanism is fixed on the top of the support for using the rainwater collected by the collection component to reduce the temperature of the photovoltaic panel.

[0006] When it rains, rainwater is collected by the collection component. When the temperature of the photovoltaic panel is too high, the rainwater collected by the collection component is pumped out through the spraying mechanism to reduce the temperature of the photovoltaic panel. It can not only cool the photovoltaic panel, but also wash away the dust on the surface of the photovoltaic panel, thereby improving the power generation efficiency and avoiding the situation where the output voltage decreases with the increase in temperature.

[0007] Preferably, the collecting assembly includes a collecting trough fixedly arranged in a parallelogram shape between the support and the top of the photovoltaic panel and a water tank fixedly arranged on the support for storing water, a fixed pipe for collecting water is fixedly arranged at the bottom of the collecting trough, a water inlet pipe is connected to the bottom of the fixed pipe, and the bottom of the water inlet pipe is connected to the water tank.

[0008] Through the above structure, rainwater can be collected when it rains to cool down the photovoltaic panels when the temperature is too high, thereby saving water resources.

[0009] Preferably, a water inlet is provided at the connection between the collecting tank and the fixed pipe, and a clamping assembly for sealing the fixed pipe is provided at the bottom of the water inlet; and a slope for guiding water flow is provided on the side of the collecting tank close to the photovoltaic panel.

[0010] Through the above structure, the collected rainwater can be sealed to prevent rainwater evaporation. The setting of the inclined surface for guiding water flow can guide part of the rainwater on the top of the support through the inclined surface to the surface of the photovoltaic panel for flushing, thereby improving the flushing effect of rainwater on the surface of the photovoltaic panel when it rains.

[0011] Preferably, a filter screen for filtering impurities is fixedly provided on the top of the collecting tank and on the side close to the photovoltaic panel.

[0012] Through the above structure, impurities in rainwater and outside can be filtered to prevent them from entering the water tank and clogging the water pump.

[0013] Preferably, the clamping assembly includes a baffle rotatably arranged at the bottom of the collecting tank, a spring for clamping the baffle is fixedly arranged between the baffle and the inner wall of the fixed tube, and a sealing strip for sealing the connection is fixedly arranged between the baffle and the water inlet.

[0014] Through the above structure, the collected rainwater can be sealed to prevent the rainwater from evaporating, and the provision of the sealing strip further improves the sealing performance of the baffle to the water inlet.

[0015] Preferably, the spraying mechanism includes a connecting pipe fixed on a support and a water pump located inside the water tank, a plurality of nozzles for spraying water for cooling are fixed on the connecting pipe, both ends of the connecting pipe are connected with water pipes, and the bottom of the water pipe is fixed on the output end of the water pump.

[0016] Through the above structure, rainwater collected in the water tank or water at the water supply end can be pumped into the connecting pipe and sprayed out at high pressure through the nozzle to cool the photovoltaic panel. This can not only cool the photovoltaic panel, but also wash away the dust on the surface of the photovoltaic panel, thereby improving the power generation efficiency and avoiding the situation where the output voltage decreases with the increase in temperature. At the same time, washing away the dust on the surface of the photovoltaic panel can also improve the conversion efficiency of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a distributed photovoltaic system;

[0018] Figure 2 It is a schematic diagram of the overall side cross-sectional structure of a distributed photovoltaic system;

[0019] Figure 3 It is a schematic diagram of the side cross-sectional structure of an overall collecting tank and fixed tube of a distributed photovoltaic system. DETAILED DESCRIPTION

[0020] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0021] Example 1

[0022] See also Figure 1-3 This embodiment provides a distributed photovoltaic system including a photovoltaic device body, which includes a support 100 and a photovoltaic panel 110 fixed at the oblique side of the support 100, a collecting component for collecting rainwater is fixedly provided on the top of the support 100; a spraying mechanism 130 is fixedly provided on the top of the support 100 for using the rainwater collected by the collecting component to reduce the temperature of the photovoltaic panel 110.

[0023] Among them, a temperature detector is provided on the support 100, which is used to detect the temperature of the photovoltaic panel 110. When the temperature is greater than or equal to the preset temperature threshold, the water pump is started to pump the water inside the water tank 240 to the connecting pipe 210, and the water is sprayed through the nozzle 211 for cooling. When the temperature is lower than the preset temperature threshold, no operation is performed.

[0024] When it rains, rainwater is collected by the collecting component. When the temperature of the photovoltaic panel 110 is too high, the rainwater collected by the collecting component is pumped out through the spraying mechanism 130 to reduce the temperature of the photovoltaic panel 110. This can not only cool the photovoltaic panel 110, but also wash away the dust on the surface of the photovoltaic panel 110, thereby improving the power generation efficiency and avoiding the situation where the output voltage decreases with the increase in temperature.

[0025] In this embodiment, the collecting assembly includes a collecting trough 120 fixedly disposed in a parallelogram shape between the support 100 and the top of the photovoltaic panel 110 and a water tank 240 fixedly disposed on the support 100 for storing water. A fixed pipe 230 for collecting water is fixedly disposed at the bottom of the collecting trough 120. A water inlet pipe 360 ​​is connected to the bottom of the fixed pipe 230. The bottom of the water inlet pipe 360 ​​is connected to the water tank 240.

[0026] The water tank 240 may also be provided with a water supply pipe connected to a water supply end so that when there is no rain, the water supply end can supply water to the water tank 240 to avoid excessive temperature of the photovoltaic panel 110 due to lack of water in the water tank 240.

[0027] Through the above structure, rainwater can be collected when it rains to cool down the photovoltaic panel 110 when the temperature is too high, thereby saving water resources.

[0028] In this embodiment, a water inlet 310 is provided at the connection between the collecting tank 120 and the fixed pipe 230, and a clamping assembly for sealing the fixed pipe 230 is provided at the bottom of the water inlet 310; a slope 320 for guiding water flow is provided on the side of the collecting tank 120 close to the photovoltaic panel 110.

[0029] Through the above structure, the collected rainwater can be sealed to prevent rainwater evaporation. The setting of the inclined surface 320 for guiding water flow can guide part of the rainwater on the top of the support 100 through the inclined surface 320 to the surface of the photovoltaic panel 110 for flushing, thereby increasing the range of rainwater, thereby improving the flushing effect of rainwater on the surface of the photovoltaic panel 110 when it rains.

[0030] In this embodiment, a filter 330 for filtering impurities is fixedly provided on the top of the collecting tank 120 and on the side close to the photovoltaic panel 110 .

[0031] Through the above structure, impurities in rainwater and outside can be filtered to prevent them from entering the water tank 240 and clogging the water pump.

[0032] In this embodiment, the clamping assembly includes a baffle 340 rotatably arranged at the bottom of the collecting tank 120, a spring 350 for clamping the baffle 340 is fixedly arranged between the baffle 340 and the inner wall of the fixed tube 230, and a sealing strip 311 for sealing the connection is fixedly arranged between the baffle 340 and the water inlet 310.

[0033] Through the above structure, the collected rainwater can be sealed to prevent the rainwater from evaporating. The provision of the sealing strip 311 further improves the sealing performance of the baffle 340 to the water inlet 310.

[0034] In this embodiment, the spraying mechanism 130 includes a connecting pipe 210 fixed on the support 100 and a water pump located inside the water tank 240. A plurality of nozzles 211 for spraying water for cooling are fixed on the connecting pipe 210. Both ends of the connecting pipe 210 are connected to a water pipe 220, and the bottom of the water pipe 220 is fixed on the output end of the water pump.

[0035] Through the above structure, rainwater collected in the water tank 240 or water at the water supply end can be pumped into the connecting pipe 210, and sprayed out at high pressure through the nozzle 211 to cool the photovoltaic panel 110. It can not only cool the photovoltaic panel 110, but also wash away the dust on the surface of the photovoltaic panel 110, thereby improving the power generation efficiency and avoiding the situation where the output voltage decreases with the increase in temperature. At the same time, washing away the dust on the surface of the photovoltaic panel 110 can also improve the conversion efficiency of the photovoltaic panel 110.

[0036] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0037] The above is a schematic description of the present invention and its implementation methods, which is not restrictive. The embodiments shown are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A distributed photovoltaic system, characterized in that: The photovoltaic device comprises a photovoltaic device body, the photovoltaic device body comprises a support (100) and a photovoltaic panel (110) fixedly arranged at the oblique side of the support (100); a collection component for collecting rainwater is fixedly arranged on the top of the support (100); and a spraying mechanism (130) is fixedly arranged on the top of the support (100) for using the rainwater collected by the collection component to reduce the temperature of the photovoltaic panel (110).

2. A distributed photovoltaic system according to claim 1, characterized in that: The collection assembly comprises a collection trough (120) fixedly arranged between a support (100) and the top of a photovoltaic panel (110) and arranged in a parallelogram shape, and a water tank (240) fixedly arranged on the support (100) and used to store water, a fixed pipe (230) for collecting water fixedly arranged at the bottom of the collection trough (120), a water inlet pipe (360) connected at the bottom of the fixed pipe (230), and the bottom of the water inlet pipe (360) connected to the water tank (240).

3. A distributed photovoltaic system according to claim 2, characterized in that: A water inlet (310) is provided at the connection between the collecting tank (120) and the fixed pipe (230), and a pressing assembly for sealing the fixed pipe (230) is provided at the bottom of the water inlet (310); and a slope (320) for guiding water flow is provided on one side of the collecting tank (120) close to the photovoltaic panel (110).

4. A distributed photovoltaic system according to claim 2, characterized in that: A filter screen (330) for filtering impurities is fixedly provided on the top of the collection tank (120) and on a side close to the photovoltaic panel (110).

5. A distributed photovoltaic system according to claim 1, characterized in that: The pressing assembly comprises a baffle (340) rotatably arranged at the bottom of the collecting tank (120), a spring (350) for pressing the baffle (340) is fixedly arranged between the baffle (340) and the inner wall of the fixed tube (230), and a sealing strip (311) for sealing the connection is fixedly arranged between the baffle (340) and the water inlet (310).

6. A distributed photovoltaic system according to claim 1, characterized in that: The spraying mechanism (130) comprises a connecting pipe (210) fixedly mounted on the support (100) and a water pump located inside the water tank (240); a plurality of spray heads (211) for spraying water for cooling are fixedly mounted on the connecting pipe (210); both ends of the connecting pipe (210) are connected to a water delivery pipe (220); the bottom of the water delivery pipe (220) is fixedly mounted on the output end of the water pump.

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