Photovoltaic power generation device capable of adjusting posture according to sun irradiation angle

Abstract

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation device capable of adjusting postures according to sun irradiation angles, which comprises a receptacle main body, a plurality of petal-shaped solar panels are fixedly arranged on the periphery of the receptacle main body, and a stand column is arranged below the receptacle main body. The receptacle body rotates at the top of the stand column, a base is fixedly arranged at the bottom of the stand column, a plurality of photoresistors are arranged on the surface of the base, and a posture adjusting mechanism used for adjusting the direction of the petal-shaped solar panel is arranged on the base; the posture adjusting mechanism comprises a connector fixed to the bottom of the petal-shaped solar panel, a winding shaft rotationally installed in the base and a rope connected between the winding shaft and the connector. According to the utility model, the posture of the sunflower can be adjusted by matching the photoresistor with lower cost with the winding of the rope, and the technical difficulty is also reduced while the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and in particular to a photovoltaic power generation device that can adjust its posture according to the angle of solar irradiation. Background Technology

[0002] With the continuous development of the economy and society, the demand for electricity is also rising. However, traditional thermal power generation has the disadvantages of high energy consumption and large emissions of greenhouse gases. Photovoltaic power generation, as a clean and renewable energy source, has been widely promoted. In order to integrate photovoltaic power generation with building structures and achieve both power generation and aesthetic appeal, photovoltaic sunflower power generation devices have emerged.

[0003] Current petal-shaped photovoltaic panels are inconvenient to rotate and adjust the angle of the photovoltaic panel to face the sun, resulting in low power generation efficiency;

[0004] A publicly available technical solution, CN213279559U, discloses a sunflower-shaped light-emitting device, comprising several BIPV (Building Integrated Photovoltaic) components arranged in a sunflower shape at the top of a column. An energy storage battery is located at the bottom of the column, and a seat is located beside the column. The output of the BIPV components is connected to the input of the energy storage battery. The BIPV components are mounted at the top of the column via a rotating mechanism. A controller is located beside the energy storage battery, with the output of the battery connected to the power input of the controller, and the output of the controller connected to the input of the rotating mechanism. Using a time calibration system and a GPS system, the system reads the longitude and latitude data of the BIPV components, calculates the local sunrise and sunset times, intelligently calculates the solar zenith angle and solar azimuth angle, and sends rotation signals to a stepper motor based on these angles to adjust the direction of the BIPV components to face the sunlight, thereby maximizing solar energy.

[0005] In actual implementation, the above technical solution requires the use of a time calibration system and a GPS system to intelligently calculate the solar zenith angle and solar azimuth angle during the construction of the sunflower. Although this can achieve good adjustment results, it requires a high level of technical expertise from the staff. Furthermore, if the time calibration system and GPS system malfunction, the angle adjustment of the sunflower cannot be achieved. Summary of the Invention

[0006] The purpose of this invention is to provide a photovoltaic power generation device that can adjust the posture according to the angle of sunlight. The posture of the sunflower can be adjusted by using a low-cost photoresistor in conjunction with the winding of a rope. This reduces both cost and technical difficulty, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic power generation device that can adjust its posture according to the angle of solar irradiation, comprising a flower holder body, a plurality of petal-shaped solar panels fixedly arranged around the flower holder body, a column arranged below the flower holder body, and the flower holder body rotating at the top of the column, a base fixedly arranged at the bottom of the column, and a plurality of photoresistors arranged on the surface of the base, and a posture adjustment mechanism for adjusting the direction of the petal-shaped solar panels arranged on the base;

[0008] The attitude adjustment mechanism includes a connector fixed to the bottom of the petal-shaped solar panel, a rewind shaft rotatably installed inside the base, and a rope connecting the rewind shaft and the connector.

[0009] Preferably, the posture adjustment mechanism further includes a support component located between the flower holder body and the column, the support component including a support rod fixed to the bottom of the flower holder body, and a rotating ball fixedly provided at the end of the support rod.

[0010] Preferably, a mounting hole is provided at the connection between the rotating ball and the column, and the mounting hole and the rotating ball form a semi-enclosed structure, and the rotating ball is rotatably connected to the mounting hole.

[0011] Preferably, four sets of return springs are provided between the flower holder body and the upright, and a telescopic rod is inserted inside the return spring. The two ends of the telescopic rod are rotatably connected to the flower holder body and the upright, respectively.

[0012] Preferably, one end of the take-up shaft is mounted on the base via a bearing, and the other end of the take-up shaft is fixedly connected to a motor, which is embedded and fixedly mounted inside the base.

[0013] Preferably, the surface of the base is provided with a plurality of connecting grooves, and the rope passes through the inside of the connecting grooves. One end of the rope is fixedly set on the connecting head, and the other end is wound around the surface of the take-up shaft.

[0014] Preferably, a support plate for support is fixedly provided at the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses a low-cost photoresistor to adjust the current flowing through the motor, thereby winding up the rope. As the rope winds up, it pulls the petal-shaped solar panel in the corresponding direction via the connector. The overall structure is relatively simple to implement and does not require other systems to calculate the solar zenith angle and solar azimuth angle, thus enabling the petal-shaped solar panel to "track the sun". Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the flower holder body of this utility model;

[0020] Figure 3 This is a schematic diagram of the end structure of the column of this utility model;

[0021] Figure 4 This is a half-sectional structural diagram of the connecting groove of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Flower holder body; 2. Petal-shaped solar panel; 3. Posture adjustment mechanism; 301. Rope; 302. Rotating ball; 303. Support rod; 304. Connector; 305. Return spring; 306. Rewinding shaft; 4. Column; 5. Base; 6. Connecting groove; 7. Photoresistor; 8. Support plate; 9. Mounting hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution:

[0026] Please see Figures 1 to 4 A photovoltaic power generation device that can adjust its posture according to the angle of sunlight includes a flower holder body 1, several petal-shaped solar panels 2 are fixedly arranged around the flower holder body 1, a column 4 is arranged below the flower holder body 1, and the flower holder body 1 can rotate at the top of the column 4. A base 5 is fixedly arranged at the bottom of the column 4, and several photoresistors 7 are arranged on the surface of the base 5. A posture adjustment mechanism 3 for adjusting the direction of the petal-shaped solar panels 2 is arranged on the base 5.

[0027] The attitude adjustment mechanism 3 includes a connector 304 fixed to the bottom of the petal-shaped solar panel 2, a winding shaft 306 rotatably installed inside the base 5, and a rope 301 connecting the winding shaft 306 and the connector 304.

[0028] By adopting the above technical solution, at least eight photoresistors 7 are set. The number of photoresistors 7 can be matched with the number of petal-shaped solar panels 2. Each photoresistor 7 has an independent internal power supply and is connected in series with the motor. After the motor rotates, the rope 301 can be wound or unwound by rotating the winding shaft 306. The petal-shaped solar panel 2 can be tilted by the connector 304 at the connection between the rope 301 and the petal-shaped solar panel 2. When the photoresistor 7 is in the dark, the resistance of the photoresistor 7 is extremely high and the motor does not work. When it is exposed to sunlight, the resistance of the photoresistor 7 decreases and the current flowing through the motor increases. After the motor rotates, it can drive the winding shaft 306 to rotate. At this time, the rope 301 in that direction can be wound up, and the petal-shaped solar panel 2 can be pulled to tilt in the corresponding direction to achieve the purpose of "tracking the light".

[0029] Specifically, such as Figure 2 and Figure 3 As shown, the posture adjustment mechanism 3 also includes a support component located between the flower holder body 1 and the column 4. The support component includes a support rod 303 fixed to the bottom of the flower holder body 1, and a rotating ball 302 is fixedly provided at the end of the support rod 303. An installation hole 9 is provided at the connection between the rotating ball 302 and the column 4, and the installation hole 9 and the rotating ball 302 form a semi-enclosed structure. The rotating ball 302 is rotatably connected to the installation hole 9. Four sets of return springs 305 are provided between the flower holder body 1 and the column 4, and a telescopic rod is passed through the inside of the return spring 305. The two ends of the telescopic rod are rotatably connected to the flower holder body 1 and the column 4, respectively. One end of the winding shaft 306 is mounted on the base 5 through a bearing, and the other end of the winding shaft 306 is fixedly connected to a motor. The motor is embedded and fixedly installed inside the base 5. Several connecting grooves 6 are provided on the surface of the base 5, and a rope 301 passes through the inside of the connecting grooves 6. One end of the rope 301 is fixedly provided on the connector 304, and the other end is wound around the surface of the winding shaft 306.

[0030] By adopting the above technical solution, when the petal-shaped solar panel 2 is tilted, the return spring 305 undergoes elastic deformation, and the rotating ball 302 on the flower holder body 1 can rotate inside the mounting hole 9, thereby achieving the tilting of the petal-shaped solar panel 2. When night falls, all motors rotate in the opposite direction, releasing all ropes 301, so that the petal-shaped solar panel 2 loses the pulling force of the ropes 301. Under the elastic action of the return spring 305, the petal-shaped solar panel 2 returns to its original position until the next day.

[0031] Specifically, such as Figure 1 As shown, a support plate 8 is fixedly installed at the bottom of the base 5 for support. The support plate 8 can be made of concrete to improve the stability of the entire photovoltaic power generation device. An energy storage battery for energy storage and a controller for controlling the entire device can be installed inside the column 4.

[0032] By adopting the above technical solution, after receiving sunlight, the petal-shaped solar panel 2 can be adjusted to a suitable angle by the attitude adjustment mechanism 3 to receive a wider range of irradiation and store electricity through the energy storage battery.

[0033] Working principle: When the photoresistor 7 is in darkness, its resistance is extremely high, and the motor does not work. When exposed to sunlight, the resistance of the photoresistor 7 decreases, the current flowing through the motor increases, and the motor rotates, which drives the winding shaft 306 to rotate. At this time, the rope 301 in that direction can be wound up, pulling the petal-shaped solar panel 2 to tilt in the corresponding direction. When the petal-shaped solar panel 2 tilts, the return spring 305 undergoes elastic deformation, and the rotating ball 302 on the flower holder body 1 can rotate inside the mounting hole 9, realizing the tilting of the petal-shaped solar panel 2. When night falls, all motors rotate in the opposite direction, releasing all ropes 301, so that the petal-shaped solar panel 2 loses the pulling force of the ropes 301. Under the elastic action of the return spring 305, the petal-shaped solar panel 2 returns to its original position until the next day.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A photovoltaic power generation device capable of adjusting its posture according to the angle of solar irradiation, comprising a flower support body (1), characterized in that: The flower holder body (1) is fixedly provided with several petal-shaped solar panels (2) around its perimeter. A column (4) is provided below the flower holder body (1), and the flower holder body (1) rotates on the top of the column (4). A base (5) is fixedly provided at the bottom of the column (4), and several photoresistors (7) are provided on the surface of the base (5). An attitude adjustment mechanism (3) for adjusting the direction of the petal-shaped solar panels (2) is provided on the base (5). The attitude adjustment mechanism (3) includes a connector (304) fixed to the bottom of the petal-shaped solar panel (2), a winding shaft (306) rotatably installed inside the base (5), and a rope (301) connecting the winding shaft (306) and the connector (304).

2. A photovoltaic power generation device that can adjust its attitude according to the angle of solar irradiation as described in claim 1, characterized in that: The posture adjustment mechanism (3) also includes a support component located between the flower holder body (1) and the column (4). The support component includes a support rod (303) fixed to the bottom of the flower holder body (1), and a rotating ball (302) is fixedly provided at the end of the support rod (303).

3. A photovoltaic power generation device that can adjust its attitude according to the angle of solar irradiation as described in claim 2, characterized in that: The rotating ball (302) is provided with an installation hole (9) at the connection between it and the column (4), and the installation hole (9) and the rotating ball (302) form a semi-enclosed structure. The rotating ball (302) is rotatably connected to the installation hole (9).

4. A photovoltaic power generation device that can adjust its attitude according to the angle of solar irradiation as described in claim 3, characterized in that: Four sets of return springs (305) are provided between the flower holder body (1) and the column (4), and a telescopic rod is provided inside the return spring (305). The two ends of the telescopic rod are rotatably connected to the flower holder body (1) and the column (4) respectively.

5. A photovoltaic power generation device that can adjust its attitude according to the angle of solar irradiation as described in claim 4, characterized in that: One end of the take-up shaft (306) is mounted on the base (5) via a bearing, and the other end of the take-up shaft (306) is fixedly connected to a motor, which is embedded and fixedly installed inside the base (5).

6. A photovoltaic power generation device that can adjust its attitude according to the angle of solar irradiation as described in claim 5, characterized in that: The base (5) has several connecting grooves (6) on its surface, and a rope (301) passes through the inside of the connecting groove (6). One end of the rope (301) is fixed on the connector (304), and the other end is wrapped around the surface of the take-up shaft (306).

7. A photovoltaic power generation device that can adjust its attitude according to the angle of solar irradiation as described in claim 1, characterized in that: The bottom of the base (5) is fixedly provided with a support plate (8) for support.

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