Solar photovoltaic device

Abstract

The invention relates to the technical field of photovoltaics, and particularly provides a solar photovoltaic device which comprises a bottom frame, a first display rack which inclines front and back is installed at the top end of the bottom frame, a screw rod is installed on the first display rack, the front end of the screw rod is installed at the front end of the first display rack through a bearing, and the rear end of the screw rod is installed at the rear end of the first display rack through a bearing. A second display rack is arranged on the bottom surface of the bottom rack, a transmission seat is mounted on the screw rod, the transmission seat is fixed at the front end of the second display rack, the top surface of the second display rack slides on the bottom surface of the first display rack, and when the screw rod rotates forwards and backwards, the transmission seat drives the second display rack to move forwards and backwards along the bottom surface of the first display rack; the first hinge shaft is close to the front end of the second display rack, and the third display rack is mounted on the first hinge shaft, so that the light energy absorption rate is improved, and additional wind resistance caused by increase of the photovoltaic area is avoided.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic technology, and in particular to a solar photovoltaic device. Background Art

[0002] The adjustable flexible photovoltaic solar bracket is a bracket that supports the solar panels, and a flexible rope with adjustable tightness is installed on the surface of the bracket to improve the wind resistance of the photovoltaic panels. Some photovoltaic devices also have a cleaning function.

[0003] In the prior art, the photovoltaic surface is either set smaller to benefit from wind resistance, or larger to benefit from efficient light energy conversion. The former has a smaller photovoltaic surface, so the light energy conversion efficiency is lower, and the latter has a longer photovoltaic surface span, so it occupies a larger space and has poor wind resistance. Summary of the invention

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A solar photovoltaic device comprises a base frame, a first exhibition frame tilted forward and backward is installed on the top of the base frame, a screw is installed on the first exhibition frame, a front end of the screw is installed on the front end of the first exhibition frame through a bearing, and a rear end of the screw is installed on the rear end of the first exhibition frame through a bearing, a second exhibition frame is arranged on the bottom surface of the base frame, a transmission seat is installed on the screw, and the transmission seat is fixed on the front end of the second exhibition frame, the top surface of the second exhibition frame slides on the bottom surface of the first exhibition frame, when the screw rotates forward and reversely, the transmission seat brings the second exhibition frame to move forward and backward along the bottom surface of the first exhibition frame, a first hinge shaft is installed on the second exhibition frame, and the first hinge shaft is close to the front end of the second exhibition frame, A third exhibition frame is mounted on the first hinge axis, a second hinge axis is mounted on the front end of the top of the first exhibition frame, a fourth exhibition frame tilted upward and forward is connected to the second hinge axis, a first photovoltaic panel is mounted on the top surface of the first exhibition frame, a second photovoltaic panel is mounted on the top surface of the third exhibition frame, a third photovoltaic panel is mounted on the top surface of the fourth exhibition frame, the third photovoltaic panel forms an obtuse angle with the first photovoltaic panel, a gas spring is connected between the bottom of the third exhibition frame and the rear end of the second exhibition frame, when the second exhibition frame moves to the rear side, the action rod of the gas spring releases its length toward the bottom surface of the third exhibition frame, and the third exhibition frame deflects the second photovoltaic panel upward to the obtuse angle of the first photovoltaic panel with the second photovoltaic panel;

[0006] A driving mechanism is provided between the second display frame and the fourth display frame. When the second display frame moves back and forth along the bottom surface of the bottom frame, the driving mechanism drives the third photovoltaic panel to rotate back and forth relative to the first photovoltaic panel.

[0007] Preferably, the driving mechanism includes a rack fixed on the outer wall surface of the second display rack, and also includes a gear fixed on the outer end of the second hinge shaft, the gear is located on the path of the rack moving forward and backward, when the second display rack moves forward along the bottom surface of the first display rack, not only the second photovoltaic panel enters the bottom surface of the first display rack to push the third display rack to deflect downward, but also when the rack moves to engage with the gear, the gear drives the second hinge shaft, and the second hinge shaft drives the fourth display rack to rotate toward the first photovoltaic panel.

[0008] Preferably, a slider is fixed to the rear side of the top surface of the third display rack, a sliding cavity is provided on the slider, the slider and the screw are in the same straight line, and a rounded corner is provided at the rear side of the top end of the sliding cavity.

[0009] Preferably, a servo motor is installed on the first display frame, the action shaft of the servo motor is connected to the screw rod, and a controller and a sensor electrically connected to the servo motor are arranged on the base frame.

[0010] Preferably, a rubber strip is provided between the top surface of the second display frame and the bottom surface of the first display frame, and the top surface of the second display frame slides on the bottom surface of the first display frame through the rubber strip.

[0011] Preferably, a first pull plate is fixed on the second hinge shaft, a second pull plate is fixed on the front end of the first display rack, the second pull plate is located on the front side of the first pull plate, a return spring is connected to the first pull plate, the other end of the return spring is connected to the second pull plate, a limit plate is fixed on the front end of the first display rack, the limit plate extends upward and is installed with a rubber plate, and the fourth display rack relies on the rubber plate.

[0012] Preferably, the first display frame is provided with first exhaust holes on both sides thereof, the second display frame is provided with second exhaust holes on both sides thereof, and an exhaust passage is provided between the bottom frame and the first display frame.

[0013] Preferably, the second photovoltaic panel and the third photovoltaic panel are both rectangular, and a reflector is installed on each of the four corners of the photovoltaic surface of the second photovoltaic panel and the third photovoltaic panel. The reflector on the second photovoltaic panel is tilted toward the photovoltaic surface of the first photovoltaic panel, and the reflector on the third photovoltaic panel is tilted toward the photovoltaic surface of the first photovoltaic panel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The second photovoltaic panel and the third photovoltaic panel are arranged on both sides of the original first photovoltaic panel by means of the second display frame, the third display frame and the fourth display frame. In normal weather, the second display frame is located at the rear side of the first display frame, that is, the third display frame and the fourth display frame are displayed on both sides of the first display frame in a deflected upward manner, that is, the second photovoltaic panel and the third photovoltaic panel are displayed on both sides of the first photovoltaic panel in a deflected upward manner. The second photovoltaic panel, the third photovoltaic panel and the first photovoltaic panel together constitute a light energy absorption area, which increases the photovoltaic area and improves the conversion efficiency when converting electrical energy to the converter. Moreover, unlike the general multi-piece photovoltaic panel, the second photovoltaic panel and the third photovoltaic panel are displayed on both sides of the first photovoltaic panel in an obtuse angle, so that when the light is irradiated on the three photovoltaic panels, the light can be refracted to the photovoltaic surface of each other again, thereby enhancing the light energy utilization rate.

[0016] 2. The second exhibition frame is driven by a screw rod and can move. When strong winds suddenly occur, the screw rod rotates, and the transmission seat moves linearly along the screw rod under the drive of the screw rod. The transmission seat drives the second exhibition frame to move forward along the bottom surface of the first exhibition frame, and the second exhibition frame drives the first hinge shaft to move forward. The first hinge shaft drives the third exhibition frame to move forward. When the rotating end of the third exhibition frame enters the bottom surface of the first exhibition frame and continues to move forward, it is squeezed by the bottom surface of the first exhibition frame and deflected downward into the second exhibition frame. The third exhibition frame drives the second photovoltaic panel to deflect into the second exhibition frame, and the second exhibition frame continues to move forward along the bottom surface of the first exhibition frame. The top surface of the second photovoltaic panel continues to slide forward along the bottom surface of the first exhibition frame. When the front end of the second exhibition frame moves forward to coincide with the front end of the first exhibition frame, the second exhibition frame stops moving forward and stores the second photovoltaic panel at the bottom of the first exhibition frame. When strong winds strike, the rear photovoltaic area formed by the second photovoltaic panel will not generate wind resistance, and has strong wind resistance.

[0017] 3. A rack and gear structure is set between the second and fourth display racks. When the second display rack moves forward, the rack will rotate clockwise with the gear, and the gear will rotate clockwise with the second hinge shaft, and the second hinge shaft will rotate clockwise with the fourth display rack, and the fourth display rack will rotate clockwise with the third photovoltaic panel, and then the photovoltaic surface will be buckled on the first photovoltaic panel. When strong winds hit, the front photovoltaic area of ​​the first photovoltaic panel will automatically reduce, and when strong winds hit, the front photovoltaic area will not generate wind resistance, and the wind resistance will be further enhanced. In summary, not only the light energy absorption rate is improved, but also no additional wind resistance will be generated due to the increase in photovoltaic area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a solar photovoltaic device provided in an embodiment of the present invention;

[0019] Figure 2 The solar photovoltaic device provided in the embodiment of the present invention comprises Figure 1 The enlarged schematic diagram of the A part is shown;

[0020] Figure 3 A side plan view of a solar photovoltaic device provided in an embodiment of the present invention;

[0021] Figure 4 The solar photovoltaic device provided in the embodiment of the present invention comprises Figure 1 A schematic diagram from another perspective;

[0022] Figure 5 The solar photovoltaic device provided in the embodiment of the present invention comprises Figure 4 The enlarged schematic diagram of the B part is shown;

[0023] Figure 6 A schematic diagram of a solar photovoltaic device provided by an embodiment of the present invention when the base frame is removed from the device when viewed from above;

[0024] Figure 7 This is a schematic diagram of only the second display frame in the solar photovoltaic device provided in an embodiment of the present invention.

[0025] In the figure: 1, base frame; 2, first display frame; 3, screw; 4, second display frame; 5, transmission seat; 6, first hinge axis; 7, third display frame; 8, second hinge axis; 9, fourth display frame; 10, first photovoltaic panel; 11, second photovoltaic panel; 12, third photovoltaic panel; 13, gas spring; 14, rack; 15, gear; 16, servo motor; 17, first pull plate; 18, second pull plate; 19, reset spring; 20, limit plate; 21, rubber plate; 22, first exhaust hole; 23, second exhaust hole; 24, exhaust channel; 25, slider; 26, slide cavity; 27, fillet; 28, reflector. DETAILED DESCRIPTION

[0026] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0027] In one embodiment, if Figure 1-Figure 7 As shown:

[0028] The present embodiment provides a solar photovoltaic device, including a base frame 1, a first exhibition frame 2 tilted forward and backward is installed on the top of the base frame 1, a screw rod 3 is installed on the first exhibition frame 2, the front end of the screw rod 3 is installed on the front end of the first exhibition frame 2 through a bearing, and the rear end of the screw rod 3 is installed on the rear end of the first exhibition frame 2 through a bearing, a second exhibition frame 4 is arranged on the bottom surface of the base frame 1, a transmission seat 5 is installed on the screw rod 3, the transmission seat 5 is fixed on the front end of the second exhibition frame 4, the top surface of the second exhibition frame 4 slides on the bottom surface of the first exhibition frame 2, when the screw rod 3 rotates forward and reversely, the transmission seat 5 brings the second exhibition frame 4 to move forward and backward along the bottom surface of the first exhibition frame 2, and a first hinge shaft 6 is installed on the second exhibition frame 4, and the first hinge shaft 6 is close to the front end of the second exhibition frame 4 , a third exhibition frame 7 is installed on the first hinge shaft 6, a second hinge shaft 8 is installed on the front end of the top of the first exhibition frame 2, a fourth exhibition frame 9 tilted forward and upward is connected to the second hinge shaft 8, a first photovoltaic panel 10 is installed on the top surface of the first exhibition frame 2, a second photovoltaic panel 11 is installed on the top surface of the third exhibition frame 7, a third photovoltaic panel 12 is installed on the top surface of the fourth exhibition frame 9, the third photovoltaic panel 12 forms an obtuse angle with the first photovoltaic panel 10, a gas spring 13 is connected between the bottom of the third exhibition frame 7 and the rear end of the second exhibition frame 4, when the second exhibition frame 4 moves to the rear side, the action rod of the gas spring 13 releases the length toward the bottom surface of the third exhibition frame 7, and the third exhibition frame 7 deflects the second photovoltaic panel 11 upward to the obtuse angle of the first photovoltaic panel 10;

[0029] A driving mechanism is provided between the second display rack 4 and the fourth display rack 9. When the second display rack 4 moves forward and backward along the bottom surface of the base frame 1, the third photovoltaic panel 12 is driven to rotate forward and backward relative to the first photovoltaic panel 10 through the driving mechanism. The driving mechanism includes a rack 14 fixed on the outer wall surface of the second display rack 4, and also includes a gear 15 fixed on the outer end of the second hinge shaft 8. The gear 15 is located on the path of the rack 14 moving forward and backward. When the second display rack 4 moves forward along the bottom surface of the first display rack 2, not only the second photovoltaic panel 11 enters the bottom surface of the first display rack 2 to push the third display rack 7 to deflect downward, but also when the rack 14 moves to mesh with the gear 15, the gear 15 drives the second hinge shaft 8, and the second hinge shaft 8 drives the fourth display rack 9 to rotate toward the first photovoltaic panel 10.

[0030] A servo motor 16 is installed on the first display frame 2 , the action shaft of the servo motor 16 is connected to the screw rod 3 , and a controller and a sensor electrically connected to the servo motor 16 are arranged on the base frame 1 .

[0031] In normal weather, the second display rack 4 is located behind the first display rack 2, and the third display rack 7 and the fourth display rack 9 are located at the rear of the first display rack 2. Figure 1In the position shown, the third display frame 7 and the fourth display frame 9 are displayed on both sides of the first display frame 2 in a deflected upward manner, that is, the second photovoltaic panel 11 and the third photovoltaic panel 12 are displayed on both sides of the first photovoltaic panel 10 in a deflected upward manner. The second photovoltaic panel 11, the third photovoltaic panel 12 and the first photovoltaic panel 10 together constitute a light energy absorption area, which increases the photovoltaic area and improves the conversion efficiency when converting electrical energy to the converter. Moreover, different from the general multi-piece photovoltaic panel, the second photovoltaic panel 11 and the third photovoltaic panel 12 are displayed on both sides of the first photovoltaic panel 10 in an obtuse angle, so that when the light is irradiated on the three photovoltaic panels, the light can be refracted again to the photovoltaic surface of each other, thereby enhancing the light energy utilization rate. In addition, when strong winds occur suddenly, the strong wind signal is sensed by the sensor and fed back to the controller, and the controller instructs the servo motor 16 to be energized and drive the screw 3 to rotate, and the transmission seat 5 moves linearly along the screw 3, and the transmission seat 5 drives the second display frame 4 to move forward along the bottom surface of the first display frame 2, and the second display frame 4 drives the first hinge shaft 6 to move forward, and the first hinge shaft 6 drives the third display frame 7 to move forward, and when the rotating end of the third display frame 7 enters the bottom surface of the first display frame 2 and continues to move forward, it is squeezed by the bottom surface of the first display frame 2 and deflected downward into the second display frame 4, and the third display frame 7 drives the second photovoltaic panel 11 to move forward. In the second exhibition frame 4, the gas spring 13 is folded and contracted, the second exhibition frame 4 continues to move forward along the bottom surface of the first exhibition frame 2, and the top surface of the second photovoltaic panel 11 continues to slide forward along the bottom surface of the first exhibition frame 2. When the front end of the second exhibition frame 4 moves forward to coincide with the front end of the first exhibition frame 2, the servo motor 16 is automatically powered off under the control of the controller, the screw 3 stops rotating, the transmission seat 5 stops moving forward, and the second exhibition frame 4 stops moving forward. At this time, the second photovoltaic panel 11 is stored on the bottom surface of the first exhibition frame 2, which is equivalent to automatically releasing the rear photovoltaic area of ​​the first photovoltaic panel 10. When strong winds hit, the rear photovoltaic area will not generate wind resistance, and the wind resistance is relatively strong.

[0032] In accordance with the above, when strong winds strike, in addition to the second photovoltaic panel 11 automatically retreating to the bottom side of the first display frame 2 for protection, when the second display frame 4 advances (when retreating to the bottom side of the first display frame 2), it will also advance with the rack 14. When the rack 14 advances to mesh with the gear 15, it will drive the gear 15 to rotate clockwise, and the gear 15 will drive the second hinge shaft 8 to rotate clockwise, and the second hinge shaft 8 will drive the fourth display frame 9 to rotate clockwise, and the fourth display frame 9 will drive the third photovoltaic panel 12 to rotate clockwise, and then the photovoltaic surface will be buckled on the first photovoltaic panel 10, which is equivalent to making the photovoltaic surfaces of the first photovoltaic panel 10 and the third photovoltaic panel 12 overlap. When strong winds strike, it is equivalent to automatically reducing the front photovoltaic area of ​​the first photovoltaic panel 10. When strong winds strike, the front photovoltaic area will not generate wind resistance, and the wind resistance is further enhanced. In summary, not only the light energy absorption rate is improved, but also no additional wind resistance will be generated due to the increase in photovoltaic area.

[0033] like Figure 1, Figure 2 As shown, a slider 25 is fixed to the rear side of the top surface of the third display frame 7, a sliding cavity 26 is provided on the slider 25, the slider 25 is in the same straight line as the screw rod 3, and a rounded corner 27 is provided at the rear side of the top end of the sliding cavity 26. When the third display frame 7 is folded into the second display frame 4, the gas spring 13 is compressed and shortened, and moves along with the second display frame 4 toward the bottom surface of the first display frame 2, the slider 25 also moves forward, the rounded corner 27 at the top end of the slider 25 moves along the bottom surface of the first photovoltaic panel 10, and the sliding cavity 26 moves along the screw rod 3.

[0034] like Figures 1 to 5 As shown, a first pull plate 17 is fixed to the second hinge shaft 8, a second pull plate 18 is fixed to the front end of the first display frame 2, the second pull plate 18 is located in front of the first pull plate 17, a return spring 19 is connected to the first pull plate 17, the other end of the return spring 19 is connected to the second pull plate 18, a limit plate 20 is fixed to the front end of the first display frame 2, the limit plate 20 extends upward and is installed with a rubber plate 21, and the fourth display frame 9 relies on the rubber plate 21. When the strong wind weather is lifted, the sensor sends a signal to the controller to control the servo motor 16 to be energized and drive the screw 3 to rotate in the opposite direction, the transmission seat 5 slides backward along the screw 3, and the transmission seat 5 drives the second display frame 4 to slide backward, and the second display frame 4 drives all the components thereon to slide backward. When the third display frame 7 slides backward to be separated from the first display frame 2, the gas spring 13 automatically releases its length and pushes the third display frame 7 to rotate upward, and the third display frame 7 drives the second photovoltaic panel 11 to rotate upward to an obtuse angle relative to the first photovoltaic panel 10. At the same time, the rack 14 moves backward and leaves the gear 15, the meshing force on the gear 15 disappears, the clockwise rotation force on the second hinge shaft 8 disappears, the reset spring 19 rebounds forward, and uses the first pull plate 17 to drag the second hinge shaft 8 to rotate counterclockwise, and the second hinge shaft 8 drives the fourth display frame 9 to rotate upward, and the fourth display frame 9 rotates the third photovoltaic panel 12 to an obtuse angle relative to the first photovoltaic panel 10. At this time, the entire photovoltaic device is restored to the state as shown in the figure. Figure 1 The high efficiency and large area light energy absorption state shown.

[0035] The first display frame 2 is provided with first exhaust holes 22 on both sides thereof, the second display frame 4 is provided with second exhaust holes 23 on both sides thereof, and an exhaust passage 24 is provided between the bottom frame 1 and the first display frame 2. The gas from the side is released through the first exhaust holes 22, the second exhaust holes 23 and the exhaust passage 24, thereby reducing wind resistance and improving wind resistance performance.

[0036] like Figure 1 , Figure 4As shown, the second photovoltaic panel 11 and the third photovoltaic panel 12 are both rectangular, and a reflector 28 is installed on each of the four corners of the photovoltaic surface of the second photovoltaic panel 11 and the third photovoltaic panel 12. The reflector 28 on the second photovoltaic panel 11 is tilted toward the photovoltaic surface of the first photovoltaic panel 10, and the reflector 28 on the third photovoltaic panel 12 is tilted toward the photovoltaic surface of the first photovoltaic panel 10. Part of the light irradiated on the second photovoltaic panel 11 and the third photovoltaic panel 12 is refracted by the reflector 28 and then reflected to the first photovoltaic panel 10, which shortens the refraction distance and improves the utilization rate of the light energy reflected to the first photovoltaic panel 10.

[0037] A rubber strip is provided between the top surface of the second display rack 4 and the bottom surface of the first display rack 2, and the top surface of the second display rack 4 slides on the bottom surface of the first display rack 2 through the rubber strip. When the second display rack 4 is stored toward the bottom surface of the first display rack 2, it not only has good sliding performance, but also moves smoothly.

[0038] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of technicians in this field. This is hereby explained.

[0039] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar photovoltaic device, characterized in that: The invention comprises a base frame (1), a first display frame (2) tilted forward and backward is installed on the top of the base frame (1), a screw rod (3) is installed on the first display frame (2), the front end of the screw rod (3) is installed on the front end of the first display frame (2) through a bearing, and the rear end of the screw rod (3) is installed on the rear end of the first display frame (2) through a bearing, a second display frame (4) is arranged on the bottom surface of the base frame (1), a transmission seat (5) is installed on the screw rod (3), and the transmission seat (5) is fixed on the front end of the second display frame (4) The top surface of the second display frame (4) slides on the bottom surface of the first display frame (2). When the screw rod (3) rotates forward and reversely, the transmission seat (5) drives the second display frame (4) to move back and forth along the bottom surface of the first display frame (2). The second display frame (4) is equipped with a first hinge shaft (6). The first hinge shaft (6) is close to the front end of the second display frame (4). The third display frame (7) is equipped with the first hinge shaft (6). The front end of the top surface of the first display frame (2) is equipped with a second hinge shaft (8). A fourth display frame (9) tilted forward and upward is connected to the hinge shaft (8); a first photovoltaic panel (10) is installed on the top surface of the first display frame (2); a second photovoltaic panel (11) is installed on the top surface of the third display frame (7); a third photovoltaic panel (12) is installed on the top surface of the fourth display frame (9); the third photovoltaic panel (12) forms an obtuse angle with the first photovoltaic panel (10); a gas spring (13) is connected between the bottom of the third display frame (7) and the rear end of the second display frame (4); When the frame (4) moves to the rear side, the action rod of the gas spring (13) releases its length toward the bottom surface of the third display frame (7), and the third display frame (7) brings the second photovoltaic panel (11) to deflect upward to the obtuse angle of the first photovoltaic panel (10); a driving mechanism is provided between the second display frame (4) and the fourth display frame (9), and when the second display frame (4) moves back and forth along the bottom surface of the base frame (1), the driving mechanism drives the third photovoltaic panel (12) to rotate back and forth relative to the first photovoltaic panel (10).

2. The solar photovoltaic device according to claim 1, characterized in that: The driving mechanism comprises a rack (14) fixed on the outer wall surface of the second display frame (4), and a gear (15) fixed on the outer end of the second hinge shaft (8). The gear (15) is located on the path of the rack (14) moving forward and backward. When the second display frame (4) moves forward along the bottom surface of the first display frame (2), not only the second photovoltaic panel (11) enters the bottom surface of the first display frame (2) to push the third display frame (7) to deflect downward, but also when the rack (14) moves to mesh with the gear (15), the gear (15) drives the second hinge shaft (8), and the second hinge shaft (8) drives the fourth display frame (9) to rotate toward the first photovoltaic panel (10).

3. The solar photovoltaic device according to claim 1, characterized in that: A slider (25) is fixed to the rear side of the top surface of the third display frame (7), a slide cavity (26) is provided on the slider (25), the slider (25) and the screw rod (3) are in the same straight line, and a rounded corner (27) is provided at the rear side of the top end of the slide cavity (26).

4. The solar photovoltaic device according to claim 3, characterized in that: A servo motor (16) is installed on the first display frame (2), the action shaft of the servo motor (16) is connected to the screw rod (3), and a controller and a sensor electrically connected to the servo motor (16) are arranged on the base frame (1).

5. The solar photovoltaic device according to claim 4, characterized in that: A rubber strip is provided between the top surface of the second display frame (4) and the bottom surface of the first display frame (2), and the top surface of the second display frame (4) slides on the bottom surface of the first display frame (2) via the rubber strip.

6. The solar photovoltaic device according to claim 5, characterized in that: A first pull plate (17) is fixed on the second hinge shaft (8), a second pull plate (18) is fixed on the front end of the first display frame (2), the second pull plate (18) is located on the front side of the first pull plate (17), a return spring (19) is connected to the first pull plate (17), the other end of the return spring (19) is connected to the second pull plate (18), a limit plate (20) is fixed on the front end of the first display frame (2), the limit plate (20) extends upward and is installed with a rubber plate (21), and the fourth display frame (9) rests on the rubber plate (21).

7. The solar photovoltaic device according to claim 6, characterized in that: The first display frame (2) is provided with first exhaust holes (22) communicating with each other on both sides, the second display frame (4) is provided with second exhaust holes (23) communicating with each other on both sides, and an exhaust passage (24) communicating with each other on both sides is provided between the bottom frame (1) and the first display frame (2).

8. The solar photovoltaic device according to claim 7, characterized in that: The second photovoltaic panel (11) and the third photovoltaic panel (12) are both rectangular, and a reflector (28) is installed on each of the four corners of the photovoltaic surface of the second photovoltaic panel (11) and the third photovoltaic panel (12). The reflector (28) on the second photovoltaic panel (11) is inclined toward the photovoltaic surface of the first photovoltaic panel (10), and the reflector (28) on the third photovoltaic panel (12) is inclined toward the photovoltaic surface of the first photovoltaic panel (10).

Images