Photovoltaic support structure for photovoltaic roof

Abstract

The invention relates to the technical field of photovoltaic panel supporting, in particular to a photovoltaic support structure for a photovoltaic roof, which comprises a supporting frame, the supporting frame comprises two first supporting frames and two second supporting frames, one end of each first supporting frame is connected to the corresponding second supporting frame, and the other end of each first supporting frame is connected to the corresponding second supporting frame. The other ends of the two first supporting frames are connected to the other second supporting frame, a rotating structure is arranged on the second supporting frame, the two sides of the rotating structure are connected with at least one placing frame respectively, photovoltaic panels are detachably placed in the placing frames, and the rotating structure drives the placing frames on the two sides to rotate so that the two placing frames can move relatively close to each other. And a protection structure is arranged on the placement frame and is used for solving the technical problem of glass breakage or surface damage caused by the fact that hail impacts the surface of the photovoltaic panel.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic panel support, and in particular to a photovoltaic support structure for a photovoltaic roof. Background Art

[0002] The photovoltaic support structure is a support system installed on the photovoltaic roof, which is mainly used to fix and support the photovoltaic modules to ensure their stable operation. The photovoltaic support on the photovoltaic roof not only supports the photovoltaic panels, but also needs to have good wind resistance, snow resistance, earthquake resistance and other capabilities to cope with various natural environmental conditions.

[0003] However, in actual applications, the photovoltaic support structure needs to face the challenges of some environmental factors, especially the impact of hail weather on the system. Since photovoltaic panels are generally installed on the roof, the area in contact with hail is large. High-speed falling hail directly hits the surface of the photovoltaic panel, which may cause the glass to break or produce micro cracks. This not only reduces the photoelectric conversion efficiency of the photovoltaic panel, but also may cause long-term performance degradation. Secondly, hail impact will damage the packaging material of the photovoltaic panel, increase the risk of moisture penetration, and then cause corrosion of the battery cell or internal circuit short circuit. In addition, hail accumulates in large quantities on the photovoltaic panel, and the weather is usually accompanied by low temperatures, which will cause the surface of the photovoltaic panel to freeze, forming a shielding layer that affects the light transmittance, and also increases the weight burden of the panel.

[0004] Therefore, in addition to strengthening the wind-resistant design, photovoltaic brackets also need to be able to deal with damage to the system caused by extreme weather such as hail. Summary of the invention

[0005] The present invention aims to provide a photovoltaic support structure for a photovoltaic roof, which is used to solve the technical problem that hail impacts the surface of a photovoltaic panel, causing glass breakage or surface damage.

[0006] The present invention is achieved through the following technical solutions:

[0007] A photovoltaic support structure for a photovoltaic roof includes a support frame, characterized in that the support frame includes two first support frames and two second support frames, one end of the two first support frames are connected to the second support frame, the other ends of the two first support frames are connected to another second support frame, a rotating structure is arranged on the second support frame, at least one placement frame is respectively connected to both sides of the rotating structure, photovoltaic panels are detachably placed in the placement frames, the rotating structure drives the placement frames on both sides to rotate, so that the two placement frames move relatively close to each other, and a protective structure is arranged on the placement frames.

[0008] Furthermore, the protective structure includes an anti-collision film and a first shell arranged on the side of the placement frame facing the first support frame, a first rotating shaft is rotatably arranged in the first shell, a first through hole is opened at the bottom of the first shell, one end of the anti-collision film is wrapped around the first rotating shaft, and the other end of the anti-collision film is connected to a guide rod after passing through the first through hole, and two slide rails are arranged on the side of the placement frame opposite to the photovoltaic panel, and sliders are arranged on the slide rails, and the two sliders are connected to the guide rod.

[0009] Furthermore, a reset structure is arranged on the second support frame, and the reset structure includes a second shell, a first motor is arranged in the second shell, a second through hole is opened on the inner side wall of the first shell facing the second shell, a third through hole is opened in the second shell, the first rotating shaft is elastically connected with a rotating block, a rectangular hole is opened on the rotating block, and a rectangular block is arranged at the output end of the first motor, when the rotating block enters the third through hole, the rectangular block is placed in the rectangular hole, and the rotation of the rectangular block drives the rotating block to rotate.

[0010] Furthermore, inclined surfaces are provided on both sides of the rotating block contacting the third through hole.

[0011] Furthermore, a placement plate in contact with the placement frame is also arranged on the second support frame.

[0012] Furthermore, matching blocks are provided on both placement frames, the matching blocks are L-shaped, and the two matching blocks are matched invertedly.

[0013] Furthermore, the anti-collision film is a double-layer film, the inner layer can hold objects, and the weight of the guide rod is greater than the weight of the inner layer object.

[0014] Furthermore, the angle between the placement frame and the ground is less than 30°.

[0015] Furthermore, an outer cylinder is arranged on the first rotating shaft, the rotating block is sleeved on the inner wall of the outer cylinder, and the rotating block is connected to the bottom of the outer cylinder through a compression spring.

[0016] Furthermore, slide grooves are arranged on the opposite side walls of the outer cylinder, and the two sides of the rotating block are slidably arranged in the slide grooves through the moving blocks.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. In the event of hail, the present application uses a vibration sensor for measurement. When a vibration pattern that meets the characteristics of hail is detected, the control system will start the rotating structure to rotate the two placement frames. The two placement frames bring the photovoltaic panels closer to each other, so that they form a state perpendicular to the ground, reducing the impact area generated by the hail, and avoiding technical problems such as glass breakage or micro cracks on the photovoltaic panel 4;

[0019] 2. The present application sets a reset structure so that the first rotating shaft can roll the anti-collision film back to the initial position, thereby preventing the anti-collision film from being damaged due to long-term exposure to the outdoor environment;

[0020] 3. The present application effectively prevents hail from causing physical damage to sensitive components such as photovoltaic panels during impact by configuring the anti-collision film to be a double-layer film of inner and outer layers, thereby reducing problems of fragmentation and scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the cooperation between the slide rail and the guide rod on the placement frame of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure after the guide rod of the present invention moves the anti-collision film;

[0025] Figure 4 It is a side view of the two placement frames and the ground of the present invention in a vertical state;

[0026] Figure 5 It is a schematic diagram of the internal structure of the first shell and the second shell of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the matching rectangular blocks of the present invention;

[0028] Figure 7 A schematic diagram of the structure of the photovoltaic panel of the present invention being flipped;

[0029] Figure 8 It is a schematic diagram of the specific structure of the rotating structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the trajectory of the first shell rotating to match with the second shell of the present invention.

[0031] Marks and corresponding parts names in the attached drawings:

[0032] 1-first support frame; 2-second support frame; 3-placing frame; 4-photovoltaic panel; 5-anti-collision film; 6-first shell; 7-first rotating shaft; 8-guide rod; 9-slide rail; 10-second shell; 11-first motor; 12-second through hole; 13-third through hole; 14-rotating block; 15-rectangular hole; 16-rectangular block; 17-inclined surface; 18-matching block; 19-outer cylinder; 20-compression spring; 21-rotating structure; 22-bevel gear; 23-second rotating shaft; 24-through hole. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0034] Example:

[0035] like Figures 1 to 7 As shown, a photovoltaic support structure for a photovoltaic roof includes a support frame, and the support frame includes two first support frames 1 and two second support frames 2. One end of the two first support frames 1 is connected to the second support frame 2, and the other ends of the two first support frames 1 are connected to another second support frame 2. A rotating structure 21 is arranged on the second support frame 2, and at least one placing frame 3 is connected to both sides of the rotating structure 21. Photovoltaic panels 4 are detachably placed in the placing frames 3. The rotating structure 21 drives the placing frames 3 on both sides to rotate so that the two placing frames 3 move relatively close to each other, and a protective structure is arranged on the placing frames 3.

[0036] The two first support frames 1 and the two second support frames 2 in the present application are connected to form a rectangle, and the two second support frames 2 are connected by a rotating structure 21. The rotating structure 21 preferably includes two second rotating shafts, and the two second rotating shafts are respectively connected to the two placement frames 3. The two second rotating shafts can be rotated by two second motors. The rotating structure 21 can also preferably include two second rotating shafts 23, one of which is hollow, and the two second rotating shafts 23 are in a sleeve relationship, wherein the hollow second rotating shaft 23 is provided with a through hole 24 to expose the other second rotating shaft 23, and the two second rotating shafts 23 rotate relative to each other, a bevel gear 22 connects one second rotating shaft 23, and another bevel gear 22 connects another second rotating shaft 23, and the third bevel gear 22 is meshed with the first two bevel gears 22, so that the two rotating shafts can rotate relative to each other, which is similar to the working principle of a propeller. The technical means of the rotating structure 21 are not specifically limited. When hail occurs, the contact area between the photovoltaic panel 4 and the hail is large, which will cause the photovoltaic panel 4 to be hit by hail over a large area, thereby causing glass breakage or microscopic cracks. This not only affects the power generation efficiency of the photovoltaic panel 4, but also shortens the service life of the photovoltaic system. Therefore, the present application installs a highly sensitive vibration sensor on the photovoltaic panel 4 or the bracket. Hail impact will produce vibrations of specific frequencies and amplitudes. Unlike other weather conditions (such as rain), when a vibration mode that meets the characteristics of hail is detected, a protection mechanism is triggered. The control system will start the rotating structure 21 to rotate the two placement frames 3, and the two placement frames 3 will be brought close to the photovoltaic panel 4 to form a state perpendicular to the ground, thereby reducing the impact area caused by hail and avoiding technical problems such as glass breakage or microscopic cracks on the photovoltaic panel 4. The protective structure provided can be an anti-collision film 5 provided on the back side of the placement frame 3, that is, on the back side of the photovoltaic panel 4.

[0037] It should be noted that the protection structure includes an anti-collision film 5 and a first shell 6 arranged on the side of the placement frame 3 facing the first support frame 1, a first rotating shaft 7 is rotatably arranged in the first shell 6, a first through hole is opened at the bottom of the first shell 6, one end of the anti-collision film 5 is wrapped around the first rotating shaft 7, and the other end of the anti-collision film 5 is connected to a guide rod 8 after passing through the first through hole, and two slide rails 9 are arranged on the side of the placement frame 3 opposite to the photovoltaic panel 4, and sliders are arranged on the slide rails 9, and the two sliders are connected to the guide rod 8.

[0038] In the initial state of the present application, the photovoltaic panel 4 is in a state of having a small angle slope 17, and the anti-collision film 5 is safely wound on the design structure of the placement frame 3. At this time, the anti-collision film 5 is completely rolled up and will not be affected by factors such as wind, sand, and ultraviolet rays in the outdoor environment, thereby avoiding aging and damage of the film material. The anti-collision film 5 is tightened by a clever winding method to keep it from being easily damaged, while ensuring that it can be smoothly unfolded when needed.

[0039] When the placement frame 3 starts to rotate, the photovoltaic panel 4 gradually turns from the state of the small angle slope 17 to the vertical state. Due to the effect of gravity, the rotation of the placement frame 3 will drive the guide rod 8 to slide vertically downward along the slide rail 9, thereby slowly unfolding the anti-collision film 5 to ensure that it is not torn or deformed by sudden force.

[0040] In the initial state, although the angle of the inclined plane 17 exists at the beginning, if the angle is small (for example, less than 10 degrees), the gravity acting on the guide rod 8 is weak and cannot easily overcome the friction or resistance between the guide rod 8 and the slide rail 9. In other words, this means that even in the inclined plane 17 state, the guide rod 8 will not automatically slide down due to gravity. It can also be assisted by a magnetic structure.

[0041] It should be noted that a reset structure is provided on the second support frame 2, and the reset structure includes a second shell 10, the second shell 10 is provided on the second support frame 2, a first motor 11 is provided in the second shell 10, a second through hole 12 is provided on the inner side wall of the first shell 6 facing the second shell 10, a third through hole 13 is provided in the second shell 10, a rotating block 14 is elastically connected to the first rotating shaft 7, a rectangular hole 15 is provided on the rotating block 14, and a rectangular block 16 is provided at the output end of the first motor 11. When the rotating block 14 enters the third through hole 13, the rectangular block 16 is placed in the rectangular hole 15, and the rotation of the rectangular block 16 drives the rotating block 14 to rotate. The first shell 6 moves in an arc trajectory as the placement frame 3 flips, and the second shell 10 is located on the route of the arc trajectory, so the first shell 6 will come into contact with the second shell 10 when moving.

[0042] The control system in the present application starts the rotating structure 21 to return the two placement frames 3 to their original positions. During the return process, the rotating block 14 in the first shell 6 comes into contact with the second shell 10, and the rotating block 14 is squeezed. The elastic member can be a compression spring 20, and the compression spring 20 is deformed, and the rotating block 14 moves toward the first rotating shaft 7 until the rotating block 14 moves to the third through hole 13. The compression spring 20 restores the elastic force, and the rotating block 14 enters the third through hole 13. At this time, the rectangular hole 15 of the rotating block 14 and the rectangular block 16 match. When the rectangular block 16 rotates, its four corners will come into contact with the edge of the rectangular hole 15. Because the shapes of the rectangular block 16 and the rectangular hole 15 match, the contact between the corners and the edge of the hole can form a strong friction force and contact force, so that the rotating block 14 can be effectively driven to move. When the first motor 11 rotates, the first rotating shaft 7 can be driven to move through the cooperation of the rectangular block 16 and the rectangular hole 15, and the first rotating shaft 7 rolls the anti-collision film 5 back to the initial position. Prevent the anti-collision film from being damaged by wind, sand, ultraviolet rays and other factors in the subsequent outdoor environment. The staff no longer needs to operate manually, and the system can automatically complete the return operation according to the set conditions.

[0043] It should be noted that inclined surfaces 17 are provided on both sides of the rotating block 14 contacting the third through hole 13 .

[0044] The present application provides an inclined surface 17 on the rotating block 14. When the placement frame 3 rotates, that is, when the first shell 6 moves toward the second shell 10 along an arc trajectory, after the inclined surface 17 of the rotating block 14 in the first shell 6 contacts the second shell 10, the inclined surface 17 can decompose the vertical extrusion force into two components, horizontal and vertical. The horizontal component causes the rotating block 14 to move horizontally. Then, the rotating block 14 moves horizontally until it enters the third through hole 13 in the second shell 10. At this time, the rectangular hole 15 and the rectangular block 16 cooperate with each other. Since the rectangular block 16 has edges and corners, when the rectangular block 16 is in a rotating state, the rectangular hole 15 and the rectangular block 16 will have a bite phenomenon, so that it drives the rotating block 14 to rotate. There is a gap between the rectangular hole 15 and the rectangular block 16 in the initial state. When the rectangular block 16 does not rotate, the edges and corners around the rectangular block 16 do not contact the rectangular hole 15. At this time, the first shell 6 starts to move away from the second shell 10 along an arc track (that is, moving in the vertical direction). This situation does not cause a bite, and then the inclined surface 17 is squeezed and moves toward the first rotating shaft 7 by external force in the vertical direction, and the rotating block 14 is separated from the third through hole 13. This setting allows the entire system to be used repeatedly, reducing the number of times the staff comes to handle and repair.

[0045] It should be noted that a placement plate in contact with the placement frame 3 is also provided on the second support frame 2. The placement plate can help evenly distribute the load on the placement frame 3, reduce the local force on a certain part, thereby avoiding excessive concentrated stress and preventing structural deformation or damage.

[0046] It should be noted that a matching block 18 is provided on both placement frames 3, and the matching block 18 is L-shaped, and the two matching blocks 18 are matched upside down. The two L-shaped matching blocks 18 in the present application are matched upside down, and the relative directions of the two L-shaped matching blocks 18 are reversed or inverted. In other words, one matching block 18 is placed in the normal direction, and the other is inverted, that is, turned upside down or turned left and right, so that the two matching blocks 18 can be "embedded" or "engaged" with each other. In this way, they are closely matched by nesting each other, and a sealing strip or sealing gasket is provided on the matching block 18 to form a sealed connection. It can not only reduce the entry of rainwater or snow water, but also prevent hail from impacting the photovoltaic panel 4 from the top when encountering hail weather.

[0047] It should be noted that the anti-collision film 5 is a double-layer film, the inner layer can be loaded with objects, and the weight of the guide rod 8 is greater than the weight of the inner layer object. The inner layer film can be loaded with soft materials (such as foam, rubber, elastic materials, etc.) as needed to mitigate external impact and absorb hail energy. This can effectively prevent hail from causing physical damage to sensitive components such as photovoltaic panels 4 during impact, and reduce problems such as fragmentation and scratches. The weight of the guide rod 8 is greater than the weight of the inner layer object in order to ensure that when the placement frame 3 and the ground are in a vertical state, the guide rod 8 can drive the anti-collision film 5 to move downward under the action of gravity. The gravity of the guide rod 8 can ensure that the anti-collision film 5 remains tight and effectively covers the photovoltaic panel 4 and other equipment to provide the most effective protection.

[0048] It should be noted that the angle between the placement frame 3 and the ground is less than 30°. When the angle between the placement frame 3 and the ground is less than 30°, the anti-collision film 5 has a smaller drop or slide range under the action of gravity. The stability of the anti-collision film 5 is guaranteed, and the anti-collision film 5 will not fall off or be blown by the wind due to an excessively large tilt angle, thereby ensuring that the anti-collision film 5 can stably cover the equipment to be protected.

[0049] It should be noted that an outer cylinder 19 is provided on the first rotating shaft 7, the rotating block 14 is sleeved on the inner wall of the outer cylinder 19, and the rotating block 14 is connected to the bottom of the outer cylinder 19 through a compression spring 20 to ensure the stability of the extension and retraction of the rotating block 14.

[0050] It should be noted that the outer cylinder 19 has sliding grooves on its opposite side walls, and the two sides of the rotating block 14 are slidably arranged in the sliding grooves through moving blocks, so as to ensure that the rotating block 14 can drive the first rotating shaft 7 to rotate.

[0051] The specific implementation methods described above further illustrate the objectives, 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 scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic support structure for a photovoltaic roof, comprising a support frame, characterized in that: The support frame comprises two first support frames (1) and two second support frames (2), one end of the two first support frames (1) is connected to the second support frame (2), the other end of the two first support frames (1) is connected to another second support frame (2), a rotating structure (21) is arranged on the second support frame (2), at least one placement frame (3) is connected to both sides of the rotating structure (21), a photovoltaic panel (4) is detachably placed in the placement frame (3), the rotating structure (21) drives the placement frames (3) on both sides to rotate, so that the two placement frames (3) move relatively close to each other, and a protective structure is arranged on the placement frame (3).

2. The photovoltaic support structure for a photovoltaic roof according to claim 1, characterized in that: The protective structure comprises an anti-collision film (5) and a first shell (6) arranged on a side of a placement frame (3) facing the first support frame (1), a first rotating shaft (7) is rotatably arranged in the first shell (6), a first through hole is opened at the bottom of the first shell (6), one end of the anti-collision film (5) is wound around the first rotating shaft (7), the other end of the anti-collision film (5) passes through the first through hole and is connected to a guide rod (8), two slide rails (9) are arranged on the side of the placement frame (3) opposite to the photovoltaic panel (4), a slider is arranged on the slide rail (9), and the two sliders are connected to the guide rod (8).

3. The photovoltaic support structure for a photovoltaic roof according to claim 2, characterized in that: A reset structure is arranged on the second support frame (2), the reset structure comprising a second shell (10), a first motor (11) is arranged in the second shell (10), a second through hole (12) is provided on the inner side wall of the first shell (6) facing the second shell (10), a third through hole (13) is provided in the second shell (10), a first rotating shaft (7) is elastically connected to a rotating block (14), a rectangular hole (15) is provided on the rotating block (14), a rectangular block (16) is arranged at the output end of the first motor (11), when the rotating block (14) enters the third through hole (13), the rectangular block (16) is placed in the rectangular hole (15), and the rotation of the rectangular block (16) drives the rotating block (14) to rotate.

4. The photovoltaic support structure for a photovoltaic roof according to claim 3, characterized in that: Inclined surfaces (17) are provided on both sides of the rotating block (14) in contact with the third through hole (13).

5. The photovoltaic support structure for a photovoltaic roof according to claim 1, characterized in that: A placement plate in contact with the placement frame (3) is also provided on the second support frame (2).

6. The photovoltaic support structure for a photovoltaic roof according to claim 1, characterized in that: A matching block (18) is provided on each of the two placement frames (3); the matching block (18) is L-shaped, and the two matching blocks (18) are matched upside down.

7. The photovoltaic support structure for a photovoltaic roof according to claim 2, characterized in that: The anti-collision film (5) is a double-layer film, the inner layer can hold objects, and the weight of the guide rod (8) is greater than the weight of the inner layer object.

8. The photovoltaic support structure for a photovoltaic roof according to claim 1, characterized in that: The angle between the placement frame (3) and the ground is less than 30°.

9. The photovoltaic support structure for a photovoltaic roof according to claim 3, characterized in that: An outer cylinder (19) is arranged on the first rotating shaft (7), a rotating block (14) is sleeved on the inner wall of the outer cylinder (19), and the rotating block (14) is connected to the bottom of the outer cylinder (19) via a compression spring (20).

10. The photovoltaic support structure for a photovoltaic roof according to claim 9, characterized in that: Slide grooves are arranged on the opposite side walls of the outer cylinder (19), and the two sides of the rotating block (14) are slidably arranged in the slide grooves through moving blocks.

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