A solar photovoltaic device with adjustable wind resistance

Abstract

The utility model relates to photovoltaic device technical field discloses a solar photovoltaic device of adjustable wind resistance, including photovoltaic board and be used for supporting photovoltaic board's support mechanism, the back surface fixed mounting of photovoltaic board has fixed frame, the fixed frame inside fixed mounting has elastic sac, fixedly connected with gas pipe on the elastic sac, the gas pipe is equipped with inlet valve with the elastic sac junction, the end of gas pipe is provided with air pump, a plurality of arc elastic strips are fixedly installed on the fixed frame, a plurality of arc elastic strips are close -fitted with the outer wall of elastic sac, the support mechanism includes bottom support, installation frame and rotating frame, the bottom support includes two first support, two second support and the fixed rod of fixed connection between first support and second support. Its purpose is, solves the photovoltaic wind resistance device of present, when reducing wind resistance, the inclination angle of photovoltaic board can change, thereby influenced the power generation efficiency problem of photovoltaic device.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic device technology, specifically relating to a solar photovoltaic device with adjustable wind resistance. Background Technology

[0002] Photovoltaic power generation is one of the green projects currently promoted by the state. Photovoltaic panels are mainly installed on outdoor rooftops and sunny open spaces. In port areas, the vast dock operation areas, warehouse rooftops, office building rooftops, and open spaces behind storage yards are increasingly becoming ideal locations for large-scale photovoltaic power generation systems due to their openness and usually unobstructed views. The installation method involves the photovoltaic panels facing the sun and tilted on the rooftops or open spaces. Due to the tilt angle, strong winds are the biggest safety hazard for photovoltaic panels. They are frequently overturned by strong winds during use, causing equipment damage. This is particularly prominent in coastal ports: ports are located in open areas and are constantly exposed to strong winds, especially during typhoon season when strong winds and even hurricanes are common, with strong winds and unpredictable wind directions.

[0003] Chinese utility model CN ​​218829725 U discloses a photovoltaic wind resistance device. The device includes connecting rods and a base plate. The connecting rods are located at both ends of a photovoltaic panel, and a wind resistance plate is disposed between the connecting rods. A slide rail is provided on the side wall of the base plate. The lower end of the connecting rod is connected to the slide rail via a first pin. An elastic element is disposed within the slide rail; one end of the elastic element is connected to the inner wall of the slide rail, and the other end is connected to one end of an elastic element pressure sleeve. The other end of the elastic element pressure sleeve abuts against or connects to a second pin. The lower end of the photovoltaic panel is connected to the base plate via a third pin. When the wind resistance plate is subjected to force, it transmits the force to the second pin, which in turn transmits the force to the elastic element. This utility model solves the problem in the prior art where photovoltaic panels are frequently overturned by strong winds during use, causing equipment damage.

[0004] However, with this photovoltaic wind resistance device, the tilt angle of the photovoltaic panel changes when reducing wind resistance, thus affecting the power generation efficiency of the photovoltaic device. Therefore, we propose a solar photovoltaic device with adjustable wind resistance to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in current photovoltaic wind resistance devices, the tilt angle of the photovoltaic panel changes when wind resistance is reduced, thus affecting the power generation efficiency of the photovoltaic device.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0007] An adjustable wind resistance solar photovoltaic device includes a photovoltaic panel and a support mechanism for supporting the photovoltaic panel. A fixed frame is fixedly installed on the back of the photovoltaic panel, and an elastic bladder is fixedly installed inside the fixed frame. An air supply pipe is fixedly connected to the elastic bladder, and an air inlet valve is provided at the connection between the air supply pipe and the elastic bladder. An air pump is provided at the end of the air supply pipe.

[0008] Furthermore, multiple arc-shaped elastic strips are fixedly installed on the fixed frame, and these arc-shaped elastic strips are in close contact with the outer wall of the elastic bladder. This structural design allows the arc-shaped elastic strips to enhance the overall structural strength of the elastic bladder and assist in its recovery from deformation.

[0009] Further specifying, the support mechanism includes a bottom bracket, a mounting frame, and a rotating frame. The bottom bracket includes two first pillars, two second pillars, and a fixed rod fixedly connected between the first and second pillars. The mounting frame is rotatably mounted on the upper end of the first pillars. A connecting seat is fixedly mounted on the side of the second pillar near the first pillar. The rotating frame is rotatably mounted on the connecting seat of the second pillar. Two sliders are rotatably mounted on the other end of the rotating frame. The mounting frame is fixedly connected to the photovoltaic panel and is located outside the fixed frame. Two sliding grooves are formed on the mounting frame, and the two sliders are slidably mounted in the two sliding grooves respectively. A driving component is provided on the mounting frame to drive one of the sliders. With this structural design, the slider slides in the sliding grooves, which can adjust the angle between the rotating frame and the photovoltaic panel, thereby adjusting the tilt angle of the photovoltaic panel.

[0010] Further specifying, the driving component includes a drive motor and a threaded rod. The drive motor is fixedly mounted on one end of the mounting frame near the slide groove, and the threaded rod is fixedly mounted on the output shaft of the drive motor. The end of the threaded rod extends into the slide groove, and the threaded rod is threadedly connected to the slider. With this structural design, when the drive motor is working, the output shaft can drive the threaded rod to rotate, thereby causing the slider to slide within the slide groove.

[0011] Further specifying, a fixing strip is fixedly installed on the mounting frame, and the fixing strip has several air outlet slots facing the photovoltaic panel. The fixing strip also has a connecting groove communicating with the air outlet slots. A connecting pipe is fixedly connected to the fixing strip, and the other end of the connecting pipe passes through the fixing frame and is fixedly connected to the elastic bladder, communicating with the interior of the elastic bladder. A solenoid valve is installed at the junction of the connecting pipe and the elastic bladder. With this structural design, when the elastic bladder recovers its deformation, the air inside the elastic bladder is transported to the fixing strip through the solenoid valve and the connecting pipe, and finally blown from the air outlet slots to the surface of the photovoltaic panel, effectively removing debris from the photovoltaic panel.

[0012] The utility model adopting the above technical solution has the following advantages:

[0013] In this invention, when the pressure on the solar photovoltaic device is too high, the air pump operates and delivers air into the elastic bladder through the air supply pipe, causing the elastic bladder to expand. This reduces the pressure difference on both sides of the photovoltaic panel, thereby reducing the wind resistance of the solar photovoltaic device. Furthermore, the tilt angle of the photovoltaic panel does not change when the wind resistance is reduced, ensuring the power generation efficiency of the photovoltaic device. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the structure of a solar photovoltaic device with adjustable wind resistance according to the present invention;

[0016] Figure 2 This is a schematic diagram of the photovoltaic panel portion in an adjustable wind resistance solar photovoltaic device according to this utility model;

[0017] Figure 3 This is a schematic diagram of the elastic bladder expanding in an adjustable wind resistance solar photovoltaic device according to this utility model.

[0018] Figure 4 This is a schematic diagram of the support mechanism in an adjustable wind resistance solar photovoltaic device according to the present invention.

[0019] Figure 5 This is a cross-sectional view of the support mechanism in an adjustable wind resistance solar photovoltaic device according to the present invention.

[0020] Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.

[0021] The symbols for the main components are explained below:

[0022] 1. Photovoltaic panels;

[0023] 2. Supporting structures;

[0024] 21. Bottom support; 211. First support column; 212. Second support column;

[0025] 22. Mounting frame; 221. Fixing strip; 222. Connecting pipe;

[0026] 23. Rotating frame; 231. Sliding block;

[0027] 24. Drive motor; 25. Threaded rod;

[0028] 3. Fixed frame; 31. Arc-shaped elastic strip;

[0029] 4. Elastic bladder; 41. Gas delivery tube;

[0030] 5. Air pump. Detailed Implementation

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0032] like Figures 1-6 As shown, this utility model discloses an adjustable wind resistance solar photovoltaic device, comprising a photovoltaic panel 1 and a support mechanism 2 for supporting the photovoltaic panel 1. A fixing frame 3 is fixedly installed on the back of the photovoltaic panel 1, and an elastic bladder 4 is fixedly installed inside the fixing frame 3. An air supply pipe 41 is fixedly connected to the elastic bladder 4, and an air inlet valve is provided at the connection between the air supply pipe 41 and the elastic bladder 4. An air pump 5 is provided at the end of the air supply pipe 41. Multiple arc-shaped elastic strips 31 are fixedly installed on the fixing frame 3, and the multiple arc-shaped elastic strips 31 are in close contact with the outer wall of the elastic bladder 4. An energy storage system is provided below the photovoltaic panel 1. The system and controller are electrically connected to the energy storage system, the air intake valve, the solenoid valve, the air pump 5, and the drive motor 24. The controller works in conjunction with the wind speed and direction sensor. When the controller receives the wind speed and direction data detected by the wind speed and direction sensor, and both the wind speed and direction exceed the set threshold, the controller will control the air pump 5 to work, causing the elastic bladder 4 to expand. This can reduce the pressure difference on both sides of the photovoltaic panel 1, thereby reducing the wind resistance of the solar photovoltaic device. Moreover, when reducing the wind resistance, the tilt angle of the photovoltaic panel 1 will not change, ensuring the power generation efficiency of the photovoltaic device.

[0033] The support mechanism 2 includes a bottom bracket 21, a mounting frame 22, and a rotating frame 23. The bottom bracket 21 includes two first pillars 211, two second pillars 212, and a fixed rod fixedly connected between the first pillars 211 and the second pillars 212. The air pump 5 is fixedly mounted on the fixed rod via a fixed seat. The mounting frame 22 is rotatably mounted on the upper end of the first pillars 211. A connecting seat is fixedly mounted on the side of the second pillars 212 near the first pillars 211. The rotating frame 23 is rotatably mounted on the connecting seat of the second pillars 212. Two sliders 231 are rotatably mounted on the other end of the rotating frame 23. The mounting frame 22 is fixedly connected to the photovoltaic panel 1. The mounting frame 22 is located outside the fixed frame 3. Two sliding grooves are opened on the mounting frame 22. The two sliders 231 are slidably mounted in the two sliding grooves respectively. A driving component that can drive one of the sliders 231 to move is provided on the mounting frame 22.

[0034] The driving component includes a drive motor 24 and a threaded rod 25. The drive motor 24 is fixedly mounted on one end of the mounting frame 22 near the slide groove. The threaded rod 25 is fixedly mounted on the output shaft of the drive motor 24. The end of the threaded rod 25 extends into the slide groove and is threadedly connected to the slider 231. When the drive motor 24 is working, the output shaft can drive the threaded rod 25 to rotate, thereby driving the slider 231 to slide in the slide groove, thereby adjusting the tilt angle of the photovoltaic panel 1.

[0035] A fixing strip 221 is fixedly installed on the mounting frame 22. The fixing strip 221 has several air outlet slots facing the photovoltaic panel 1. The fixing strip 221 has a connecting slot that communicates with the several air outlet slots. A connecting pipe 222 is fixedly connected to the fixing strip 221. The other end of the connecting pipe 222 passes through the fixing frame 3 and is fixedly connected to the elastic bladder 4 and communicates with the inside of the elastic bladder 4. A solenoid valve is provided at the connection between the connecting pipe 222 and the elastic bladder 4.

[0036] The method of using this utility model is as follows:

[0037] In use, the bottom bracket 21 of the support mechanism 2 is fixed to the ground with expansion bolts. When the controller receives the wind speed and direction data detected by the wind speed and direction sensor, and the wind speed and direction exceed the set threshold, the controller will control the air pump 5 to work, causing the elastic bladder 4 to expand. Under the limiting action of the fixed frame 3, the elastic bladder 4 changes to the lower square of the photovoltaic panel 1 to form an arc-shaped windward surface. When the airflow impacts, the arc-shaped windward surface can guide the airflow to smoothly adhere and flow, delay or avoid airflow separation, and significantly reduce the low-pressure wake area behind, thereby greatly reducing the pressure difference on both sides of the photovoltaic panel 1, thus reducing the pressure difference resistance of the solar photovoltaic device. Moreover, when reducing wind resistance, the tilt angle of the photovoltaic panel 1 will not change, ensuring the power generation efficiency of the photovoltaic device.

[0038] When the wind force decreases, the solenoid valve opens, and the air in the elastic bladder 4 is transported to the connecting groove and the air outlet groove through the connecting pipe 222. Finally, the airflow formed through the air outlet groove impacts the surface of the photovoltaic panel 1, which can blow away the debris on the photovoltaic panel 1, thereby reducing the impact of debris on the power generation efficiency of the photovoltaic panel 1.

[0039] The above provides a detailed description of an adjustable wind resistance solar photovoltaic device provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A solar photovoltaic device with adjustable wind resistance, comprising a photovoltaic panel (1) and a support mechanism (2) for supporting the photovoltaic panel (1), characterized in that: A fixed frame (3) is fixedly installed on the back of the photovoltaic panel (1). An elastic bladder (4) is fixedly installed inside the fixed frame (3). An air supply pipe (41) is fixedly connected to the elastic bladder (4). An air inlet valve is provided at the connection between the air supply pipe (41) and the elastic bladder (4). An air pump (5) is provided at the end of the air supply pipe (41).

2. The adjustable wind resistance solar photovoltaic device according to claim 1, characterized in that: Multiple arc-shaped elastic strips (31) are fixedly installed on the fixed frame (3), and the multiple arc-shaped elastic strips (31) are in close contact with the outer wall of the elastic bladder (4).

3. The adjustable wind resistance solar photovoltaic device according to claim 1, characterized in that: The support mechanism (2) includes a bottom bracket (21), a mounting frame (22), and a rotating frame (23). The bottom bracket (21) includes two first pillars (211), two second pillars (212), and a fixed rod fixedly connected between the first pillars (211) and the second pillars (212). The mounting frame (22) is rotatably mounted on the upper end of the first pillars (211). A connecting seat is fixedly mounted on the side of the second pillar (212) near the first pillar (211). The rotating frame (23) is rotatably mounted on the connecting seat of the second pillar (212). Two sliders (231) are rotatably mounted on the other end of the rotating frame (23). The mounting frame (22) is fixedly connected to the photovoltaic panel (1). The mounting frame (22) is located outside the fixed frame (3). Two sliding grooves are opened on the mounting frame (22). The two sliders (231) are slidably mounted in the two sliding grooves respectively. A driving component that can drive one of the sliders (231) to move is provided on the mounting frame (22).

4. The adjustable wind resistance solar photovoltaic device according to claim 3, characterized in that: The driving component includes a drive motor (24) and a threaded rod (25). The drive motor (24) is fixedly installed on one end of the mounting frame (22) near the slide groove. The threaded rod (25) is fixedly installed on the output shaft of the drive motor (24). The end of the threaded rod (25) extends into the slide groove. The threaded rod (25) is threadedly connected to the slider (231).

5. The adjustable wind resistance solar photovoltaic device according to claim 3, characterized in that: A fixing strip (221) is fixedly installed on the mounting frame (22). The fixing strip (221) has several air outlet slots facing the photovoltaic panel (1). The fixing strip (221) has a connecting slot that communicates with the several air outlet slots. A connecting pipe (222) is fixedly connected to the fixing strip (221). The other end of the connecting pipe (222) passes through the fixing frame (3) and is fixedly connected to the elastic bladder (4) and communicates with the inside of the elastic bladder (4). A solenoid valve is provided at the junction of the connecting pipe (222) and the elastic bladder (4).

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