A bracket and photovoltaic system

Abstract

The application provides a bracket for supporting a photovoltaic module, the bracket comprising: a bracket body for fixing the photovoltaic module; and a cavity located in the bracket body, the cavity being at least partially located on one side of the photovoltaic module, the cavity being configured to enable heat exchange between liquid in the cavity and the photovoltaic module, the cavity being provided with a liquid guide hole configured to enable the liquid to flow to the photovoltaic module. The bracket provided by the application is simple in structure and can simultaneously satisfy heat dissipation and cleaning of the photovoltaic module.

Description

Technical Field

[0001] This application relates to the field of solar energy technology, and in particular to a bracket and a photovoltaic system. Background Technology

[0002] Photovoltaic modules are the core components of a photovoltaic (PV) power generation system. They are composed of multiple photovoltaic cells encapsulated in series or parallel, and can directly convert solar energy into direct current (DC). The main function of PV mounting systems is to support and secure the PV modules, ensuring their stable installation on rooftops, the ground, or other structures. They not only guarantee the safety and stability of the PV modules but also play a crucial role in improving the overall performance and lifespan of the PV system.

[0003] In related technologies, photovoltaic brackets do not simultaneously have heat dissipation and cleaning functions, or their structures are complex and costly. Utility Model Content

[0004] This application provides a bracket and a photovoltaic system with a simple structure, which can simultaneously meet the requirements of heat dissipation and cleaning of photovoltaic modules, thus solving at least one of the shortcomings of related technologies.

[0005] To achieve the above objectives, a first aspect of this application provides a support bracket for supporting photovoltaic modules, the bracket comprising:

[0006] A support body, which is used to fix the photovoltaic module;

[0007] A cavity is located on the support body, at least partially on one side of the photovoltaic module, the cavity is configured to allow heat exchange between the liquid inside the cavity and the photovoltaic module, and the cavity is provided with liquid guiding holes configured to allow the liquid to flow to the photovoltaic module.

[0008] According to some embodiments of this application, the cavity includes a first cavity and a second cavity, the first cavity being located on one side of the photovoltaic module, and the first cavity and the second cavity being communicative.

[0009] According to some embodiments of this application, the second cavity is at least partially located at one end of the photovoltaic module, the liquid guiding hole is disposed in the second cavity, a plurality of liquid guiding holes are spaced apart along the length direction of the second cavity, and the liquid guiding holes extend toward the photovoltaic module.

[0010] According to some embodiments of this application, the support includes a first switch configured to open or close the liquid guide hole.

[0011] According to some embodiments of this application, the bracket includes a second switch configured to connect or disconnect the first cavity and the second cavity.

[0012] According to some embodiments of this application, the side of the first cavity near the photovoltaic module further includes a thermally conductive layer, which is attached to the photovoltaic module.

[0013] According to some embodiments of this application, the cavity further includes a guide surface extending toward the liquid guide hole, the guide surface being configured to allow the liquid to flow toward the liquid guide hole so that the liquid is stored in the first cavity and / or the second cavity.

[0014] According to some embodiments of this application, the cavity includes two second cavities, which are located at opposite ends of the photovoltaic module. Each of the two second cavities is provided with a liquid guiding hole, which extends toward the photovoltaic module.

[0015] According to some embodiments of this application, the bracket further includes a support structure configured to tilt the bracket body.

[0016] According to some embodiments of this application, the support structure includes a first support structure or a second support structure, and at least one of the first support structure and the second support structure is height-adjustable.

[0017] According to some embodiments of this application, the support also includes a pressure sensor configured to monitor the surface load of the photovoltaic module.

[0018] According to some embodiments of this application, the bracket further includes a light sensor configured to detect the position of a light source.

[0019] According to some embodiments of this application, the liquid is water.

[0020] According to a second aspect of this application, a photovoltaic system is also provided, including the bracket and the photovoltaic module as described above.

[0021] This application provides a support bracket for supporting photovoltaic modules. The bracket includes: a bracket body for fixing the photovoltaic modules; and a cavity located within the bracket body, at least partially situated on one side of the photovoltaic modules. The cavity is configured to allow heat exchange between liquid within the cavity and the photovoltaic modules. The cavity has liquid guiding holes configured to allow the liquid to flow towards the photovoltaic modules. By providing the cavity, heat exchange between the liquid within the cavity and the photovoltaic modules can be achieved, thus dissipating heat from the photovoltaic modules. The liquid guiding holes also allow the liquid to flow towards the photovoltaic modules, facilitating cleaning of the photovoltaic modules. The structure is simple and easy to manufacture.

[0022] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

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

[0024] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0025] Figure 1 This is one of the structural schematic diagrams of the bracket provided in the embodiments of this application;

[0026] Figure 2 This is a second schematic diagram of the structure of the bracket provided in the embodiments of this application;

[0027] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0029] Figure 5 yes Figure 2 Enlarged view of point C in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Bracket; 10. Bracket body; 20. Cavity; 21. First cavity; 211. Heat-conducting layer; 22. Second cavity; 23. Liquid guide hole; 24. First switch; 25. Second switch; 26. Guide surface; 30. Support structure; 31. First support structure; 32. Second support structure; 33. Fixing part; 34. Controller; 40. Connecting part; 41. Connector; 42. Pin; 50. Pressure sensor; 60. Light sensor; 70. Cleaning port; 200. Photovoltaic module. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] Photovoltaics (PV) is a technology that converts solar energy into electrical energy. The core of a photovoltaic (PV) system is the photovoltaic module, also known as a solar panel, which directly converts the energy of sunlight into electricity. PV support structures play a crucial role in PV systems, not only supporting and fixing the PV modules but also ensuring the efficient operation of the system by optimizing sunlight reception, improving system efficiency and reliability, adapting to different environments and application scenarios, and ensuring safety and stability. Through proper design and selection of PV support structures, the performance and lifespan of PV systems can be significantly improved, achieving better economic and environmental benefits. Currently, some related technologies only meet the requirements for heat dissipation or cleaning of PV modules, or the support structures are complex and costly.

[0034] Therefore, this application provides a bracket that achieves heat dissipation and rinsing functions for photovoltaic modules by setting liquid guiding holes on the cavity. The structure is simple and easy to manufacture.

[0035] like Figure 1 As shown, this application embodiment provides a bracket 100, including: a bracket body 10, the bracket body 10 being used to fix the photovoltaic module 200; a cavity 20, the cavity 20 being located on the bracket body 10, the cavity 20 being at least partially located on one side of the photovoltaic module 200, the cavity 20 being configured to allow heat exchange between the liquid inside the cavity 20 and the photovoltaic module 200, the cavity 20 further including a liquid guiding hole 23, the liquid guiding hole 23 being configured to allow the liquid to flow to the photovoltaic module 200.

[0036] The support frame 100 includes a support body 10 and a cavity 20. The support body 10 supports and fixes the photovoltaic module 200, ensuring that the photovoltaic module 200 can be stably installed on the support frame 100. The support frame 100 also includes the cavity 20. By setting the cavity 20, heat exchange can be carried out between the liquid inside the cavity 20 and the photovoltaic module 200. The photovoltaic module 200 generates heat during operation. If this heat is not dissipated in time, it will cause the module temperature to rise, thereby reducing its photoelectric conversion efficiency. The support frame 100 of this application can transfer the heat generated by the photovoltaic module 200 to the liquid inside the cavity 20, thereby effectively reducing the module temperature and improving its operating efficiency. Cleaning the photovoltaic module 200 plays an important role in improving its power generation efficiency and extending its service life. Dust, dirt, and other contaminants will cover the surface of the photovoltaic module 200, hindering the transmission of light and thus reducing the photoelectric conversion efficiency. The cavity 20 is provided with a liquid guiding hole 23, which allows liquid to flow to the photovoltaic module 200, thereby cleaning the photovoltaic module 200. Through the design of the cavity 20 and the liquid guiding hole 23, the water cooling and cleaning functions of the photovoltaic module 200 can be realized.

[0037] Understandably, the cavity 20 can store liquid for heat dissipation of the photovoltaic module 200 and for rinsing the photovoltaic module 200. The liquid guide hole 23 can allow the liquid to flow to the photovoltaic module 200 or to flow into the cavity 20.

[0038] In some embodiments, the liquid is water. Therefore, cleaning and heat dissipation of photovoltaic modules can be achieved at a lower cost. Water is a common natural resource, and rainwater can be collected for both cooling and cleaning. Furthermore, water cleaning causes less environmental pollution compared to chemical solvents.

[0039] In some embodiments, the cavity 20 includes a first cavity 21 and a second cavity 22. The first cavity 21 is located on one side of the photovoltaic module 200, and the first cavity 21 and the second cavity 22 are communicative. The liquid guide hole 23 is located in the second cavity 22. The first cavity 21, being located on one side of the photovoltaic module 200, allows the liquid in the first cavity 21 to exchange heat with the photovoltaic module 200, thereby dissipating heat from the photovoltaic module 200. Therefore, the first cavity 21 can be a heat dissipation liquid storage cavity. The liquid guide hole 23 is located in the second cavity 22, so the second cavity 22 can be a flushing liquid storage cavity. The communicative nature of the first cavity 21 and the second cavity 22 increases the system's flexibility, allowing fluid to flow freely between different cavities 20 to meet the needs of heat dissipation and flushing.

[0040] In some embodiments, the second cavity 22 is at least partially located at one end of the photovoltaic module 200, and liquid guiding holes 23 are provided in the second cavity 22. Multiple liquid guiding holes 23 are spaced apart along the length of the second cavity 22 and extend towards the photovoltaic module 200. Therefore, liquid can flow out of the photovoltaic module from the multiple liquid guiding holes, allowing for thorough cleaning of the photovoltaic module and improving the rinsing efficiency and effect of the support structure.

[0041] It is understood that the second cavity 22 can extend along the width direction of the photovoltaic module 200, and the liquid guiding holes 23 are spaced apart along the width direction of the photovoltaic module 200; the second cavity 22 can also extend along the length direction of the photovoltaic module 200, and the liquid guiding holes 23 are spaced apart along the length direction of the photovoltaic module 200. This application does not impose too many restrictions.

[0042] In some embodiments, the support 100 includes a first switch 24 configured to open or close the liquid guide hole 23. The first switch 24 can be opened when rinsing is required or when liquid needs to flow into the liquid guide hole 23, and closed when rinsing is not required or when liquid does not need to flow into the liquid guide hole 23. By controlling the opening and closing of the liquid guide hole 23 via the switch, precise control of the water flow can be achieved, ensuring that water flows when needed and is stored in the cavity 20 when not needed.

[0043] In some embodiments, the bracket 100 includes a second switch 25 configured to connect or disconnect the first cavity 21 and the second cavity 22. By controlling the connection between the two cavities 20 through the switch, fluid can flow between the two cavities 20, ensuring smooth transmission when needed or effective isolation when not needed.

[0044] In some embodiments, the side of the first cavity 21 near the photovoltaic module 200 further includes a thermally conductive layer 211, which is attached to the photovoltaic module 200. The main function of the thermally conductive layer 211 is to help the device or system effectively dissipate heat, thereby maintaining its normal operating temperature and avoiding performance degradation or damage caused by overheating.

[0045] In some embodiments, the second cavity 22 further includes a guide surface 26 configured to allow water to flow toward the liquid guide hole 23, so that liquid is stored in the first cavity 21 and / or the second cavity 22. The guide surface 26 can guide the direction of liquid flow, directing the liquid toward the liquid guide hole 23, thus collecting rainwater during rainfall and allowing it to flow from the liquid guide hole 23 into the cavity 20, which can then be used to cool or rinse the photovoltaic module 200. Through the proper design and application of the guide surface 26, water flow can be ensured to follow a predetermined path, improving system efficiency.

[0046] In some embodiments, the cavity 20 includes two second cavities 22, which are located at opposite ends of the photovoltaic module 200, and the liquid guiding hole 23 extends toward the photovoltaic module 200. The cavity 20 includes two second cavities 22, each with a liquid guiding hole 23, allowing the photovoltaic module 200 to be flushed from both ends of the support 100. This design, allowing flushing from both ends, ensures that dirt, deposits, and impurities inside the system can be thoroughly flushed away from both ends, achieving a more comprehensive cleaning effect.

[0047] In some embodiments, the support structure 100 further includes a support structure 30 configured to tilt the support body 10. The support structure 30 allows the support body 10 to tilt, meaning the angle of the support body 10 is adjustable. This tilting allows the support 100 to be tilted when rinsing is required, enabling liquid to flow out from the liquid guide hole 23 and rinse the photovoltaic module 200. Furthermore, the angle of the support 100 can be adjusted according to the sun's position to ensure that the photovoltaic module 200 always faces the sun at different times of the day, thereby maximizing solar energy collection efficiency.

[0048] In some embodiments, the support structure 30 includes a first support structure 31 and a second support structure 32, at least one of which is height-adjustable. This solution achieves horizontal adjustment through the combination of the first support structure 31 and the second support structure 32, meeting the optimal tilt angle and rinsing requirements of the photovoltaic module 200.

[0049] It is understood that either the first support structure 31 or the second support structure 32 can be adjusted in height, or both can be adjusted in height, as long as the angle of the photovoltaic module 200 can be adjusted. This application does not impose any restrictions.

[0050] In some embodiments, the second support structure 32 includes a hydraulic sleeve and a hydraulic rod.

[0051] In some embodiments, the support structure 30 further includes a fixing part 33, which is used to ensure the initial position and alignment of the moving parts, bear and transmit external loads, ensure the overall structure is subjected to balanced forces, and prevent the parts from being accidentally displaced during operation by fixing the structure.

[0052] In some embodiments, the bracket 100 further includes a connecting portion 40, which connects the bracket body 10 and the support structure 30. The connecting portion 40 includes a connector 41 and a pin 42. The connector and the pin 42 are essential basic components in the mechanical system, respectively undertaking the functions of fixing, rotating, and limiting. By setting the pin 42, the bracket body 10 can rotate relative to the support structure 30.

[0053] In some embodiments, the bracket 100 further includes a controller 34. When the bracket 100 is rinsing the photovoltaic module 200, the controller 34 adjusts the height of the hydraulic rod in the hydraulic sleeve of the second support structure 32, causing the photovoltaic bracket 100 to tilt at a certain angle. This opens the first switch 24, allowing the second cavity 22 at the higher position to release stored rainwater to rinse the surface of the photovoltaic module 200 from top to bottom, removing dust, bird droppings, etc. The controller 34 can also adjust the height of the hydraulic rod in the hydraulic sleeve in the opposite direction, raising the second cavity 22 on the other side to a higher position. This opens the second switch 25 of the liquid guide hole 23 for another rinsing, ensuring a clean cleaning effect for the photovoltaic module 200. When the photovoltaic bracket 100 is storing water on rainy days, the controller 34 keeps both the second switch 25 and the first switch 24 open. Rainwater flows into the first cavity 21 and the second cavity 22 through the liquid guide hole 23 until full. The controller 34 then closes the first switch 24 and the second switch 25. Compared to traditional brackets, this reduces manual labor, avoids shading the photovoltaic module 200, has high automation efficiency, saves water and energy, and is easier to implement in scenarios with limited water supply.

[0054] In some embodiments, the bracket 100 includes a cleaning port 70, which is connected to the cavity 20. When the bracket 100 is being maintained, the controller 34 controls the first switch 24 and the second switch 25 to be in the open state. The cleaning agent enters the first cavity 21 and the second cavity 22 through the cleaning port 70 to clean the inside of the bracket 100, thereby achieving the effect of easy cleaning and maintenance of the bracket 100.

[0055] In some embodiments, the bracket 100 further includes a pressure sensor 50 configured to detect pressure on the bracket body 10. The bracket 100 can be adjusted to any angle during strong winds, achieving an automatic wind protection effect. The pressure sensor 50 monitors the surface load of the photovoltaic module 200 in real time and transmits the pressure value signal to the controller 34. If the pressure exceeds a set safety value, the controller 34 outputs a control signal to the support structure 30 to adjust the height, allowing the photovoltaic module 200 to be placed flat or at another angle, avoiding direct exposure to strong winds. This provides higher safety than traditional fixed brackets 100, ensuring the safety of the photovoltaic module 200.

[0056] In some embodiments, the bracket 100 further includes a light sensor 60 configured to detect the position of the light source. This photovoltaic bracket 100 achieves a light-tracking function by acquiring local geographical location, sunrise and sunset times, and the real-time solar trajectory from the observatory, combined with light intensity sensor data, to calculate a control quantity. This control signal and quantity are then transmitted to a hydraulic rod. The hydraulic rod adjusts the tilt angle of the photovoltaic bracket 100 according to the control quantity, achieving real-time light-tracking and improving the photoelectric conversion efficiency of the photovoltaic module 200. The advantages of this method are high power generation, strong adaptability, and the ability to adjust the tilt angle of the photovoltaic module 200 in real time according to changes in the sun's position, ensuring it remains perpendicular to the sunlight and achieving optimal photoelectric conversion efficiency. This method offers higher efficiency and stability compared to traditional fixed brackets 100.

[0057] This application also provides a photovoltaic system, which includes a photovoltaic support 100 and a photovoltaic module 200. Photovoltaic systems are an important means of achieving sustainable development. The photovoltaic system of this application, by setting a cavity 20 in the support 100, can meet the requirements for heat dissipation and cleaning of the photovoltaic module 200. It has a simple and reliable structure and is easy to manufacture.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents. In the description of this application, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0062] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A support frame for supporting photovoltaic modules, characterized in that, The support includes: A support body, which is used to fix the photovoltaic module; A cavity is located on the support body, at least partially on one side of the photovoltaic module, the cavity is configured to allow heat exchange between the liquid inside the cavity and the photovoltaic module, and the cavity is provided with liquid guiding holes configured to allow the liquid to flow to the photovoltaic module.

2. The bracket according to claim 1, characterized in that, The cavity includes a first cavity and a second cavity. The first cavity is located on one side of the photovoltaic module, and the first cavity and the second cavity are communicative.

3. The bracket according to claim 2, characterized in that, The second cavity is at least partially located at one end of the photovoltaic module, the liquid guiding hole is provided in the second cavity, and a plurality of liquid guiding holes are spaced apart along the length direction of the second cavity, the liquid guiding holes extending toward the photovoltaic module.

4. The bracket according to claim 1, characterized in that, The support includes a first switch configured to open or close the liquid guide hole.

5. The bracket according to claim 2, characterized in that, The bracket includes a second switch configured to connect or disconnect the first cavity and the second cavity.

6. The bracket according to claim 2, characterized in that, The first cavity also includes a thermally conductive layer on the side near the photovoltaic module, and the thermally conductive layer is attached to the photovoltaic module.

7. The bracket according to claim 1, characterized in that, The cavity further includes a guide surface extending toward the liquid guide hole, the guide surface being configured to allow the liquid to flow toward the liquid guide hole so that the liquid is stored in the cavity.

8. The bracket according to claim 2, characterized in that, The cavity includes two second cavities, which are located at opposite ends of the photovoltaic module. Each of the two second cavities is provided with a liquid guiding hole, which extends toward the photovoltaic module.

9. The bracket according to claim 1, characterized in that, The bracket also includes a support structure configured to allow the bracket body to tilt.

10. The stent according to claim 9, characterized in that, The support structure includes a first support structure or a second support structure, and at least one of the first support structure and the second support structure is height-adjustable.

11. The stent according to any one of claims 1-10, characterized in that, The support also includes a pressure sensor configured to monitor the surface load of the photovoltaic module.

12. The stent according to any one of claims 1-10, characterized in that, The bracket also includes a light sensor configured to detect the position of a light source.

13. The stent according to any one of claims 1-10, characterized in that, The liquid is water.

14. A photovoltaic system, characterized in that, Includes the bracket and the photovoltaic module as described in any one of claims 1-13.

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