Photovoltaic support and photovoltaic assembly module

Abstract

The utility model provides a photovoltaic support and a photovoltaic assembly module, relates to the field of photovoltaic technology, and aims to solve the technical problem that a conventional photovoltaic assembly module is poor in wind resistance. The photovoltaic support comprises a base, a first frame, a second frame, a supporting rod and a buffer structure, the supporting rod and the buffer structure are arranged on the base, the first frame is used for supporting the portion, close to the first end, of a photovoltaic assembly, and the second frame is used for supporting the portion, close to the second end, of the photovoltaic assembly; the first frame is hinged to the end, away from the base, of the supporting rod. The buffering structure comprises a cylinder barrel and a piston rod movably arranged on the cylinder barrel, and the end, extending out of the cylinder barrel, of the piston rod is slidably arranged in a sliding rail of the second frame. The extending direction of the sliding rail is parallel to the first direction, and the first direction is the distribution direction from the first end to the second end. The photovoltaic support can reduce the risk that the photovoltaic module is torn and blown away in a strong wind environment, and improves the safety of the photovoltaic module.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a photovoltaic bracket and a photovoltaic module module. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] my country's photovoltaic power plant construction has developed rapidly, with strict controls on construction costs and grid connection time. Moreover, some photovoltaic power plants are located in coastal or high-altitude areas, requiring strong wind resistance.

[0004] In related technologies, photovoltaic (PV) support installation includes installing inclined beams on columns, bolting angle steel to the inclined beams, and bolting angle steel to the crossbeams. The connection between PV modules and the PV support is secured with bolts, and multiple PV modules are connected into an array to form a PV power station. However, this type of PV support poses a risk of the PV modules being blown away or torn apart by strong winds. Utility Model Content

[0005] The purpose of this invention is to provide a photovoltaic support frame and a photovoltaic module to solve the technical problem of poor wind resistance of photovoltaic module.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] In a first aspect, the present invention provides a photovoltaic support bracket, including a base, a first frame, a second frame, and a support rod and a buffer structure disposed on the base. The first frame is used to support the portion of the photovoltaic module near the first end, and the second frame is used to support the portion of the photovoltaic module near the second end.

[0008] The first frame is hinged to the end of the support rod that is away from the base;

[0009] The buffer structure includes a cylinder and a piston rod movably disposed in the cylinder. The end of the piston rod extending out of the cylinder is slidably disposed in the slide rail of the second frame.

[0010] The extension direction of the slide rail is parallel to a first direction, which is the distribution direction from the first end to the second end.

[0011] According to at least one embodiment of the present invention, the buffer structure further includes a first piston disposed inside the cylinder, the piston rod being disposed on the first piston, and the cylinder being filled with damping fluid.

[0012] According to at least one embodiment of the present invention, the buffer structure further includes a second piston disposed inside the cylinder, the second piston being located on the side of the first piston away from the piston rod;

[0013] A vibration damping structure is provided between the second piston and the bottom wall of the cylinder.

[0014] According to at least one embodiment of the present invention, the vibration damping structure includes either an inflatable vibration damper or a vibration damping spring.

[0015] According to at least one embodiment of the present invention, the support rod further includes a first crossbar, which is disposed at the end of the support rod away from the base;

[0016] The first frame includes two opposing support frames and two opposing second crossbars. The second crossbars are used to support the photovoltaic module. The ends of the two support frames are connected by corresponding second crossbars. The extension directions of the first crossbar and the second crossbar are both perpendicular to the first direction.

[0017] The two support frames are respectively hinged to both ends of the first crossbar.

[0018] According to at least one embodiment of the present invention, the photovoltaic support further includes a lightning rod, and the second crossbar has an extension extending out of the photovoltaic module, the lightning rod being disposed on the extension.

[0019] According to at least one embodiment of the present invention, the support rod is movably mounted on the base via a ratchet structure.

[0020] According to at least one embodiment of the present invention, the ratchet structure includes a pawl fixedly disposed on the base and a ratchet formed on the support rod, wherein the pawl and the ratchet engage internally.

[0021] According to at least one embodiment of the present invention, the distance from the first frame to the ground is greater than or equal to the distance from the second frame to the ground.

[0022] According to at least one embodiment of the present invention, the second frame includes a carriage and two third crossbars supporting the photovoltaic module. The slide rail is formed on the carriage, the carriage is a U-shaped component, and the two third crossbars are respectively disposed on two ends of the carriage, and the extension direction of the third crossbars is perpendicular to the first direction.

[0023] Secondly, this utility model provides a photovoltaic module, including a photovoltaic module and a photovoltaic support, wherein the photovoltaic module is disposed on the photovoltaic support, and the photovoltaic support is the photovoltaic support described in the first aspect.

[0024] In one or more technical solutions provided in the exemplary embodiments of this utility model, at least one of the following beneficial effects can be achieved.

[0025] The photovoltaic support structure of this exemplary embodiment includes a base, a first frame, a second frame, a support rod, and a buffer structure. Both the support rod and the buffer structure are mounted on the base. The other end of the support rod is hinged to the first frame. The piston rod of the buffer structure is slidably mounted in a slide rail of the second frame, meaning the relative position of the second frame and the piston rod in the horizontal direction is variable. Since the first frame supports the photovoltaic module near its first end, and the second frame supports it near its second end, when wind blows from the back of the photovoltaic module, the second end generates an upward lift force, causing the piston rod to extend and the relative position of the slide rail and the piston rod to shift. The entire photovoltaic module deflects upward around the support rod as a fulcrum. During this deflection process, due to the damping effect between the piston and the cylinder, the piston rod provides a buffering effect in the vertical direction. This means the second end of the photovoltaic module is slowly lifted under wind force, allowing the module to reach a horizontal position. This adapts to wind changes, reduces the stress area, decreases vibration, and lowers the risk of the photovoltaic module being torn or blown away by strong winds. Attached Figure Description

[0026] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0027] Figure 1 This is a structural schematic diagram of a photovoltaic module according to an embodiment of the present utility model;

[0028] Figure 2 This is a structural schematic diagram of a photovoltaic support according to an embodiment of the present utility model;

[0029] Figure 3 This is a cross-sectional view of the buffer structure according to an embodiment of the present utility model;

[0030] Figure 4 This is a cross-sectional view of the ratchet structure according to an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of the slide rail according to an embodiment of the present invention.

[0032] Figure label:

[0033] 10. Base; 11. Claw;

[0034] 20. Buffer structure; 21. Piston rod; 22. First piston; 23. Cylinder; 24. Second piston; 25. Vibration damping structure;

[0035] 31. Support rod; 311. Ratchet; 32. First crossbar;

[0036] 41. First frame; 411. Support frame; 412. Second crossbar; 412a. Extension; 42. Second frame; 421. Carriage; 421a. Slide rail; 422. Third crossbar;

[0037] 50. Photovoltaic modules;

[0038] 60. Lightning rod. Detailed Implementation

[0039] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0040] In photovoltaic power plants using related technologies, photovoltaic modules are fixedly installed on photovoltaic brackets. When facing strong winds, these modules are at risk of being blown away or torn apart.

[0041] To address the aforementioned issues, the photovoltaic support provided in the exemplary embodiment of this utility model has one end of the photovoltaic module connected to the base via a first frame, and the other end slidably mounted on a piston rod via a second frame. The photovoltaic module can deflect under the action of wind, reducing the impact of wind.

[0042] Figure 1 This is a structural schematic diagram of a photovoltaic module according to an embodiment of the present invention. Figure 1 As shown, the photovoltaic support bracket of the exemplary embodiment of this utility model is used to support the photovoltaic module 50 in a photovoltaic power station. The base 10 of the photovoltaic support bracket can be fixed to the ground by a column. The photovoltaic module 50 and the photovoltaic support bracket form a photovoltaic module module. Each photovoltaic module module can be connected to form a photovoltaic array for power generation in the photovoltaic power station.

[0043] Figure 2 This is a structural schematic diagram of a photovoltaic support according to an embodiment of the present utility model. (In conjunction with...) Figure 1 and Figure 2As shown, the photovoltaic support of an exemplary embodiment of the present invention includes a base 10, a first frame 41, a second frame 42, a support rod 31 disposed on the base 10, and a buffer structure 20. The first frame 41 is used to support the portion of the photovoltaic module 50 near the first end, and the second frame 42 is used to support the portion of the photovoltaic module 50 near the second end. The first frame 41 and the end of the support rod 31 away from the base 10 are hinged. The buffer structure 20 includes a cylinder 23 and a piston rod 21 movably disposed on the cylinder 23. The end of the piston rod 21 extending out of the cylinder 23 is slidably disposed in the slide rail 421a of the second frame 42. The extension direction of the slide rail 421a is parallel to a first direction, which is the distribution direction from the first end to the second end.

[0044] In practical applications, both the support rod 31 and the buffer structure 20 are set on the top of the base 10. A first frame 41 is hinged to the end of the support rod 31 away from the base 10, while a second frame 42 is slidably set on the piston rod 21 of the buffer structure 20. The first frame 41 and the second frame 42 are respectively fixedly set on the back part of the photovoltaic module 50 near the first end and near the second end.

[0045] After the photovoltaic module 50 is installed in the first frame 41 and the second frame 42, the first frame 41 can rotate around the end of the support rod 31, while the second frame 42 can move relative to the piston rod 21 in the first direction as the piston rod 21 rises and falls, by fitting the slide rail 421a onto the piston rod 21. In other words, the photovoltaic module 50 can deflect at a certain angle.

[0046] When the photovoltaic module faces the wind, for example, when the back of the photovoltaic module 50 is the windward side, the second end of the photovoltaic module 50 deflects upward under the action of the wind. When the wind is strong enough, the second end can be raised to a position at the same level as the first end. At this time, the damping effect of the piston connected to the piston rod 21 in the cylinder 23 can reduce the sudden rise and fall of the photovoltaic module 50, reduce the possibility of microcracks in the photovoltaic module 50 cells due to vibration, and also minimize the damage to the connection structure of the support caused by inertia from excessively rapid movement. At the same time, in a strong wind environment, the deflection of the second end of the photovoltaic module 50 can reduce its stress area and improve its reliability.

[0047] Figure 5 This is a structural schematic diagram of the slide rail according to an embodiment of the present utility model. For example... Figure 5 As shown, due to the sliding connection structure between the piston rod 21 and the slide rail 421a of the second frame 42, which is close to the photovoltaic module 50, it does not occupy too much space, allowing it to be fixed to the ground in the form of a column below the base 10, thus making the ground space more usable.

[0048] In some embodiments, the slide rail 421a of the second frame 42 can be two opposite grooves formed on the slide 421 of the second frame 42, and a pin is provided on the piston rod 21, with the two ends of the pin slidably disposed in the two grooves respectively.

[0049] Figure 3 This is a cross-sectional structural schematic diagram of the buffer structure according to an embodiment of the present utility model. (In conjunction with...) Figure 3 and Figure 1 As shown, the buffer structure 20 of the exemplary embodiment of the present invention further includes a first piston 22 disposed in the cylinder 23, a piston rod 21 disposed on the first piston 22, and the cylinder 23 is filled with damping fluid.

[0050] Considering the large weight of the photovoltaic module 50, the damping provided between the first piston 22 and the cylinder 23 is insufficient to meet the vibration reduction requirements. Therefore, the cylinder 23 is also filled with damping fluid, such as hydraulic oil, water glycol, etc., so that the first piston 22 can provide additional damping through the damping fluid to improve the vibration reduction performance.

[0051] In some embodiments, the buffer structure 20 further includes a second piston 24 disposed inside the cylinder 23, the second piston 24 being located on the side of the first piston 22 away from the piston rod 21; a vibration damping structure 25 is disposed between the second piston 24 and the bottom wall of the cylinder 23.

[0052] To further improve the vibration reduction performance of the buffer structure 20, the second piston 24 and the vibration reduction structure 25 are arranged sequentially between the first piston 22 and the bottom wall of the cylinder 23, and the damping fluid is filled between the second piston 24 and the top wall of the cylinder 23.

[0053] In some embodiments, the damping structure 25 can be either an air-filled damper or a damping spring. Specifically, compressed air can be filled between the second piston 24 and the bottom wall of the cylinder 23, or a disc spring or the like can be provided to provide cushioning performance.

[0054] like Figure 1 and Figure 2 As shown, the support rod 31 also includes a first crossbar 32, which is located at the end of the support rod 31 away from the base 10; the first frame 41 includes two opposing support frames 411 and two opposing second crossbars 412, the second crossbars 412 are used to support the photovoltaic module 50, the ends of the two support frames 411 are connected by the corresponding second crossbars 412, and the extension directions of the first crossbar 32 and the second crossbar 412 are both perpendicular to the first direction; the two support frames 411 are respectively hinged to the two ends of the first crossbar 32.

[0055] In practical applications, the first crossbar 32 is perpendicular to the support rod 31, and its center is fixed to the support rod 31. The support frame 411 is roughly U-shaped, and the middle part of the support frame 411 is rotatably set at the end of the first crossbar 32. The two support frames 411 are arranged opposite each other, and the two ends of one support frame 411 are connected to the corresponding ends of the other support frame 411 through the second crossbar 412. The second crossbar 412 is used to install the photovoltaic module 50. The first frame 41 provides stable support for the deflection of the photovoltaic module 50 through the hinge between the two support frames 411 and the first crossbar 32. At the same time, the first frame 41 is close to the photovoltaic module 50, and the first frame 41 is only connected to the base 10 through the inclined support rod 31, thereby increasing the usable space close to the ground.

[0056] In some embodiments, the second frame 42 is fixedly mounted on the photovoltaic module 50 by two third crossbars 422, and the slide 421 has the same shape as the support frame 411, which can be a U-shaped structure, with corresponding third crossbars 422 set at its two ends. The main body of the slide 421 is generally parallel to the first direction, while the third crossbars 422 are parallel to the first crossbar 32 and the second crossbar 412. This type of second frame 42 has a simple structure, low manufacturing cost, and provides stable support for the photovoltaic module 50, while also increasing the usable space near the ground.

[0057] like Figure 1 As shown, the distance from the first frame 41 to the ground is greater than or equal to the distance from the second frame 42 to the ground. After the photovoltaic module 50 is installed on the photovoltaic bracket, it is generally set at an angle to facilitate the collection of sunlight. In an exemplary embodiment of this utility model, the first end of the photovoltaic module 50 is set on the higher first frame 41, and the second end is set on the lower second frame 42.

[0058] Considering the risk of photovoltaic modules 50 being shattered or junction boxes failing due to lightning strikes at high altitudes or mountaintops, a lightning rod 60 is also installed on the photovoltaic support. The second crossbar 412 has an extension 412a extending from the photovoltaic module 50, and the lightning rod 60 is mounted on the extension 412a.

[0059] Optionally, one end of the two second crossbars 412 at the higher position is provided with an extension 412a for installing a lightning rod 60. It is understood that the lightning rod 60 needs to be made of conductive material for the wire or bracket to connect to the ground, ensuring that the lightning voltage of the entire bracket is discharged and reducing the risk of fire in the photovoltaic power station.

[0060] Considering the ease of installing photovoltaic modules 50 during the early stages of photovoltaic power plant construction, in the photovoltaic support structure of the exemplary embodiment of this utility model, the support rod 31 is movably mounted on the base 10 via a ratchet structure.

[0061] Since the photovoltaic module 50 needs to have a certain tilt angle, and the angle of illumination varies in different regions, the support rod 31 is configured to be unidirectionally rotatable in either clockwise or counterclockwise direction to accommodate this angle. For example, the support rod 31 can rotate upwards via a ratchet structure but cannot rotate downwards. Therefore, once the support rod 31 has rotated to the desired installation angle, it cannot rotate downwards even under the weight of the photovoltaic module 50, thus providing stable support for the photovoltaic module 50.

[0062] Figure 4 This is a cross-sectional structural diagram of the ratchet structure according to an embodiment of the present invention. Figure 4 As shown, the ratchet structure includes a pawl 11 fixedly mounted on the base 10 and a ratchet 311 formed on the support rod 31. The pawl 11 and the ratchet 311 cooperate to form an internal engagement.

[0063] In practical applications, the number of pawls 11 can be multiple, such as two or three, evenly arranged along the circumference of the wheel, while the wheel is fixedly mounted in the slot of the base 10 by a pin. Correspondingly, a ratchet groove in the shape of a ratchet is machined on the support rod 31, and the pawls 11 can be set in the ratchet groove, forming an internal meshing. Thus, the support rod 31 can be adjusted to the corresponding angle according to actual needs through this ratchet structure to ensure that the light-receiving surface of the photovoltaic module 50 can fully utilize sunlight, making the initial installation of the photovoltaic power station more convenient.

[0064] When the support rod 31 needs to be lowered, the pin that fixes the pawl 11 wheel must be removed from the slot of the base 10, so that the support rod 31 can be adjusted and then the pawl 11 wheel can be installed.

[0065] like Figure 1 As shown, the photovoltaic module provided in the exemplary embodiment of this utility model includes a photovoltaic module 50 and a photovoltaic support. The photovoltaic module 50 is disposed on the photovoltaic support, which is the photovoltaic support of the above embodiment.

[0066] The technological advantages of the aforementioned photovoltaic module compared to existing technologies are the same as those of the aforementioned photovoltaic support structure, and will not be repeated here.

[0067] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A photovoltaic support structure, characterized in that, It includes a base, a first frame, a second frame, and a support rod and a buffer structure provided on the base. The first frame is used to support the part of the photovoltaic module near the first end, and the second frame is used to support the part of the photovoltaic module near the second end. The first frame is hinged to the end of the support rod that is away from the base; The buffer structure includes a cylinder and a piston rod movably disposed in the cylinder. The end of the piston rod extending out of the cylinder is slidably disposed in the slide rail of the second frame. The extension direction of the slide rail is parallel to a first direction, which is the distribution direction from the first end to the second end.

2. The photovoltaic support according to claim 1, characterized in that, The buffer structure also includes a first piston disposed inside the cylinder, the piston rod being disposed on the first piston, and the cylinder being filled with damping fluid.

3. The photovoltaic support according to claim 2, characterized in that, The buffer structure also includes a second piston disposed inside the cylinder, the second piston being located on the side of the first piston away from the piston rod; A vibration damping structure is provided between the second piston and the bottom wall of the cylinder.

4. The photovoltaic support according to claim 3, characterized in that, The vibration damping structure includes either an inflatable vibration damper or a vibration damping spring.

5. The photovoltaic support according to claim 1, characterized in that, The support rod also includes a first crossbar, which is disposed at the end of the support rod away from the base; The first frame includes two opposing support frames and two opposing second crossbars. The second crossbars are used to support the photovoltaic module. The ends of the two support frames are connected by corresponding second crossbars. The extension directions of the first crossbar and the second crossbar are both perpendicular to the first direction. The two support frames are respectively hinged to both ends of the first crossbar.

6. The photovoltaic support according to claim 5, characterized in that, The photovoltaic support also includes a lightning rod, and the second crossbar has an extension that extends out of the photovoltaic module, with the lightning rod disposed on the extension.

7. The photovoltaic support structure according to any one of claims 1-6, characterized in that, The support rod is movably mounted on the base via a ratchet structure.

8. The photovoltaic support according to claim 7, characterized in that, The ratchet structure includes a pawl fixedly disposed on the base and a ratchet formed on the support rod, wherein the pawl and the ratchet engage internally.

9. The photovoltaic support structure according to any one of claims 1-6, characterized in that, The distance from the first frame to the ground is greater than or equal to the distance from the second frame to the ground; and / or, The second frame includes a carriage and two third crossbars supporting the photovoltaic module. The slide rail is formed on the carriage, which is a U-shaped component. The two third crossbars are respectively located at the two ends of the carriage, and the extension direction of the third crossbars is perpendicular to the first direction.

10. A photovoltaic module, characterized in that, It includes a photovoltaic module and a photovoltaic support, wherein the photovoltaic module is mounted on the photovoltaic support, and the photovoltaic support is the photovoltaic support as described in any one of claims 1-9.

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