Solar power generation system

Abstract

The invention relates to the technical field of solar power generation, in particular to a solar power generation system which comprises a rack and a photovoltaic panel assembly arranged above the rack. The photovoltaic panel assembly comprises a frame body, a photovoltaic panel is fixedly connected into the frame body, a groove is formed in the lower end of the frame body, a first electric heating element fixedly connected to the frame body is arranged in the groove, and the front end and the rear end of the frame body are each fixedly connected with a linear driving mechanism fixedly connected to the rack. The two photovoltaic panel assemblies are arranged in a left-right mirror symmetry mode, the two linear driving mechanisms are used for adjusting the distance between the two frame bodies, and the ice layer can be separated with low power consumption through small-area heating of a linear route in cooperation with tearing of the ice layer.

Description

Technical Field

[0001] This invention relates to the field of solar power generation technology, and more specifically to a solar power generation system. Background Technology

[0002] Solar panels are the core component of a solar power system, converting sunlight into electricity. In temperatures around 0 degrees Celsius, solar panels are prone to icing at night due to snow or rain, which affects the power generation efficiency of the system. Manually cleaning icy solar panels is difficult, especially since standing on them is discouraged. Combined with their considerable height, this cleaning work is particularly arduous when used over large areas. Summary of the Invention

[0003] This invention provides a solar power generation system, which has the advantage of enabling the ice layer to detach with low power consumption.

[0004] The above objectives are achieved through the following technical solutions:

[0005] A solar power generation system includes a rack and photovoltaic panel modules mounted on top of the rack;

[0006] The photovoltaic panel assembly includes a frame, in which a photovoltaic panel is fixedly mounted. A groove is provided at the lower end of the frame, and a first electric heating element is fixedly mounted on the frame in the groove. A linear drive mechanism is fixedly mounted on a frame at each of the front and rear ends of the frame. The photovoltaic panel assembly is provided with two mirror-symmetrical components on the left and right sides, and the two linear drive mechanisms are used to adjust the distance between the two frames. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of a solar power generation system;

[0008] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0009] Figure 3 This is a structural schematic diagram of the frame, photovoltaic panel, first heating element, and second heating element;

[0010] Figure 4 This is a schematic diagram of a linear drive mechanism.

[0011] Figure 5 A schematic diagram of the structure of the protective cover, shaft, gear and base;

[0012] Figure 6 This is a schematic diagram of the structure of the second motor and the scraper. Detailed Implementation

[0013] A solar power generation system, reference Figure 1 and2 The system includes a frame 11 and a photovoltaic panel array mounted on the frame 11; wherein the front end or rear end of the bottom of the frame 11 is raised above the other end by padding, or the frame 11 is mounted on an inclined base so that the azimuth angle of the photovoltaic panel array faces due south.

[0014] The photovoltaic panel assembly includes a frame 21, a photovoltaic panel 22 fixedly connected inside the frame 21, a square annular groove provided at the lower end of the frame 21, a first electric heating element 23 fixedly connected to the frame 21 in the groove, and a linear drive mechanism fixedly connected to each of the front and rear ends of the frame 21, and the linear drive mechanism fixedly connected to the frame 11.

[0015] When the temperature is near 0℃, a thin layer of ice forms on the upper surface of the photovoltaic panel 22 during rain or snow. The following solution is adopted to solve this problem:

[0016] The first heating element 23 is U-shaped to form an opening. Two first heating elements 23 form a frame structure. Before the photovoltaic panel 22 operates, the first heating elements 23 are heated, causing the edges of the two frames 21 to heat up, while the area between the two frames 21 remains unheated. This causes the thin ice at the junction of the frames 21 and the photovoltaic panel 22 to begin melting. When the photovoltaic panel 22 heats up under sunlight, a large area of ​​thin ice on the photovoltaic panel 22 begins to melt until the thin ice falls off due to the tilt of the photovoltaic panel 22. This prevents the ice layer on the photovoltaic panel 22 from sticking to the frames 21 and accumulating. This solution eliminates the need for large-area active heating, saves power, and facilitates easy ice removal.

[0017] The photovoltaic panel assembly is provided in two mirror-symmetrical configurations, with two linear drive mechanisms used to adjust the distance between the two frames 21. When snow is present, the distance between the two frames 21 can be repeatedly adjusted using the two linear drive mechanisms to achieve synchronous approach, slight collision, and then separation, thus shaking off the accumulated snow. Simultaneously, when the ice layer in the area heated by the first heating element 23 melts, and the photovoltaic panel 22 also begins to heat up but the ice layer has not yet detached, it indicates that there are localized areas still connected by ice. The ice layer can be pulled away by the two frames 21 moving away synchronously.

[0018] A second heating element 24 is fixed inside the frame 21 in the groove. The second heating element 24 in the same frame 21 closes the opening of the first heating element 23. When the two frames 21 are still unable to move away synchronously after the heating operation is completed, the second heating element 24 can be activated to increase power consumption and separate the ice layer from the adhesive area between the two frames 21.

[0019] The linear drive mechanism includes a base 31 fixed to the upper end of the frame 11, a guide rod 32 fixed to the base 31, and a slider 33 slidably connected to the guide rod 32. The bottom of the slider 33 and the base 31 achieve rolling friction through ball bearings embedded in the bottom of the slider 33. A second telescopic cylinder 34 is fixed to the base 31. The second telescopic cylinder 34 is an electric telescopic cylinder. The linear drive mechanism does not extend to the left and right sides of the frame 21 to reduce the space occupied by the equipment. The movable end of the second telescopic cylinder 34 is fixed to the slider 33. When the second telescopic cylinder 34 on the left retracts, the frame 21 on the left moves to the left. Similarly, when the second telescopic cylinder 34 on the right retracts, the frame 21 on the left moves to the right, thereby increasing the distance between the two frames 21. Conversely, retracting the second telescopic cylinder 34 decreases the distance between the two frames 21.

[0020] In a photovoltaic panel assembly, two sliders 33 are fixed to the front and rear ends of the frame 21, respectively.

[0021] The solar power generation system also includes two mirror-symmetrically arranged protective covers 41. The protective covers 41 are initially vertical and centered below the two frames 21. A shaft 42 is fixed to each of the front and rear ends of the upper part of the protective cover 41. A gear 43 is fixed to the front shaft 42, and the two gears 43 mesh for transmission. A first base 44 is rotatably connected to the two front shafts 42, and a second base 44 is rotatably connected to the two rear shafts 42. A first telescopic cylinder 12 with its movable end facing upwards is fixed to the lower end of each of the two bases 44. The bottom of the first telescopic cylinder 12 is fixed to the frame 11. An output shaft with its forward-facing orientation is fixed to the second rear base 44. The first motor 45 and one of the shafts 42 located on the rear side are synchronously driven by a pulley belt assembly 46. When the distance between the two frames 21 increases to form a channel, the protective cover 41 can be raised by the drive of the first telescopic cylinder 12 to pass through the channel above the protective cover 41. The protective cover 41 is driven by the first motor 45 to realize the synchronous rotation of all shafts 42, unfolding to cover the photovoltaic panel 22 to cope with hail weather. When the two protective covers 41 are unfolded, they form a triangle so that the protective cover 41 on the left side rests on the left end of the left frame 21, while the protective cover 41 on the right side rests on the right end of the right frame 21, so that hail or snow can slide off.

[0022] Among them, combined Figure 5 and 6The solar power generation system also includes a second motor 51 fixed to a protective cover 41 located on the right side. The output shaft of the second motor 51 passes through the protective cover 41 located on the right side from right to left. A scraper 52 is fixed to the left end of the output shaft of the second motor 51. The scraper 52 is located between the two protective covers 41. The first motor 45 has an electromagnetic brake function. When the protective cover 41 located on the left side rotates clockwise, the protective cover 41 located on the right side rotates counterclockwise, so that the two protective covers 41 are horizontally unfolded above the two photovoltaic panels 22. Then the protective covers 41 are lowered until the scraper 52 made of hard rubber material contacts the upper surface of the photovoltaic panel 22. Then the second motor 51 drives the scraper 52 to rotate and clean the two photovoltaic panels 22.

[0023] Among them, the inverter that converts DC power to AC power, the battery energy storage system and the power distribution system can be installed at the upper part of the bottom of the rack 11 when the installation space is small, and can be installed inside other housings when the installation space is sufficient.

Claims

1. A solar power generation system, characterized in that, Includes a rack (11) and a photovoltaic panel assembly mounted on top of the rack (11); The photovoltaic panel assembly includes a frame (21), a photovoltaic panel (22) is fixedly connected inside the frame (21), a groove is provided at the lower end of the frame (21), a first electric heating element (23) is fixedly connected to the frame (21) in the groove, and a linear drive mechanism fixedly connected to the frame (11) is fixedly connected to each of the front and rear ends of the frame (21); the photovoltaic panel assembly is provided with two mirror images of each other, and the two linear drive mechanisms are used to adjust the distance between the two frames (21).

2. In the solar power generation system according to claim 1, the first heating element (23) is U-shaped to form an opening, and the two first heating elements (23) form a frame structure.

3. In the solar power generation system according to claim 2, a second electric heating element (24) is fixedly connected to the frame (21) in the groove, and the second electric heating element (24) in the same frame (21) closes the opening of the first electric heating element (23).

4. In the solar power generation system according to claim 3, the first heating element (23) and the second heating element (24) are electric heating tubes.

5. The solar power generation system according to claim 1, wherein the linear drive mechanism includes a base (31) fixedly connected to the upper end of the frame (11), a guide rod (32) fixedly connected to the base (31), a slider (33) slidably connected to the guide rod (32), the bottom of the slider (33) and the base (31) achieve rolling friction through the ball embedded in the bottom of the slider (33), and a second telescopic cylinder (34) fixedly connected to the base (31), the movable end of the second telescopic cylinder (34) being fixedly connected to the slider (33); In a photovoltaic panel assembly, two sliders (33) are fixed to the front and rear ends of the frame (21), respectively.

6. In the solar power generation system according to claim 5, the second telescopic cylinder (34) is an electric telescopic cylinder.

7. The solar power generation system according to claim 1 further includes two mirror-symmetrically arranged protective covers (41), each with a shaft (42) fixedly connected to its front and rear ends. A gear (43) is fixedly connected to the shaft (42) on the front side, and the two gears (43) mesh and drive each other. A first base (44) is rotatably connected to the two shafts (42) on the front side, and a second base (44) is rotatably connected to the two shafts (42) on the rear side. A first telescopic cylinder (12) is fixedly connected to the lower end of the two bases (44), and the first telescopic cylinder (12) is fixedly connected to the frame ( On 11), a first motor (45) is fixedly connected to the second base (44) on the rear side. The first motor (45) and one of the shafts (42) on the rear side are synchronously driven by a pulley belt assembly (46). The initial position of the protective cover (41) is below the frame (21). When the distance between the two frames (21) increases to form a channel, the protective cover (41) can be raised by the drive of the first telescopic cylinder (12) to pass through the channel above the protective cover (41). The protective cover (41) is opened by the drive of the first motor (45) to cover the photovoltaic panel (22).

8. In the solar power generation system according to claim 7, the first telescopic cylinder (12) is an electric telescopic cylinder.

9. In the solar power generation system according to claim 7, the two protective covers (41) are unfolded to form a triangle such that the protective cover (41) on the left side rests on the left end of the left frame (21), while the protective cover (41) on the right side rests on the right end of the right frame (21).

10. The solar power generation system according to claim 7 further includes a second motor (51) fixedly attached to one of the protective covers (41), the output shaft of the second motor (51) passing through one of the protective covers (41) from a direction away from the other protective cover (41), a scraper (52) fixedly attached to the output shaft of the second motor (51), the scraper (52) being located between the two protective covers (41), and the first motor (45) having a brake function.

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