Vertical wind-facing photovoltaic support

Abstract

The utility model belongs to the field of photovoltaic supports, and discloses a vertical wind-facing photovoltaic support which comprises a stand column, a main beam and a photovoltaic assembly. The main beam is fixedly arranged on the stand column; the upper side of the photovoltaic module is rotatably suspended on the main beam, and the lower side of the photovoltaic module is suspended. The photovoltaic assembly can freely rotate relative to the main beam, when the photovoltaic assembly is windy, the photovoltaic assembly can freely swing to absorb dynamic wind power, wind pressure borne by the photovoltaic assembly is reduced, the requirement for the horizontal load of the stand column is lowered, steel use is reduced, and cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and more particularly to a vertical windward photovoltaic support. Background Technology

[0002] Agricultural photovoltaic (PV) supports are a novel structural system combining photovoltaic power generation and agricultural planting, aiming to achieve efficient use of land resources and dual benefits from agriculture and PV power generation. Existing vertically designed agricultural PV supports are generally fixed supports, with the top and bottom of the PV modules fixed, preventing the modules from rotating. This design forces the PV modules to bear wind loads at a constant 90-degree angle, placing high demands on their wind pressure resistance. Sufficient strength is also required at the bottom of the PV modules and at the bottom connection points to withstand significant shear forces and bending moments, increasing the overall cost of the PV support system. Utility Model Content

[0003] The purpose of this application is to provide a vertical windward photovoltaic support that can reduce the wind pressure on photovoltaic modules and lower the overall cost of the photovoltaic support.

[0004] The technical solution provided in this application is as follows:

[0005] A vertical windward photovoltaic support bracket includes:

[0006] Columns;

[0007] The main beam is fixedly mounted on the column;

[0008] A photovoltaic module, wherein the upper side of the photovoltaic module is rotatably suspended from the main beam, and the lower side is suspended in the air.

[0009] In some embodiments, a connecting assembly is also included for connecting the photovoltaic module to the main beam; the connecting assembly includes a purlin, a pivot, and a connector, the purlin being fixedly connected to the main beam, and the connector being rotatably connected to the purlin via the pivot;

[0010] The photovoltaic module is fixedly connected to one of the connectors on each side.

[0011] In some embodiments, the purlin includes a vertical portion and an inclined portion, one end of the vertical portion is fixedly connected to the main beam, one end of the inclined portion is fixedly connected to the other end of the vertical portion, the other end of the inclined portion extends downward toward the main beam, and the pivot is disposed on the inclined portion and located directly below the main beam.

[0012] In some embodiments, the central axis of the rotating shaft and the central axis of the main beam are located in the same vertical plane.

[0013] In some embodiments, the inclined portion includes a first side plate and a second side plate disposed opposite to each other along the axial direction of the rotating shaft, and the rotating shaft is rotatably connected to the first side plate and the second side plate;

[0014] One end of the connector is fixed on the rotating shaft and located between the first side plate and the second side plate, and the other end of the connector is connected to the photovoltaic module.

[0015] In some embodiments, the connector includes two first connecting portions and one second connecting portion; the two first connecting portions are arranged opposite to each other, the first ends of the two first connecting portions are respectively fixedly connected to the rotating shaft and located between the first side plate and the second side plate, the second ends of the two first connecting portions are respectively fixedly connected to the second connecting portion; the second connecting portion is fixedly connected to the edge of the photovoltaic module.

[0016] In some embodiments, the distance between the first ends of the two first connecting portions is smaller than the distance between the second ends of the two first connecting portions.

[0017] In some embodiments, the system further includes a plurality of first connecting plates and a plurality of second connecting plates, wherein the first connecting plates are fixedly connected to the main beam, the second connecting plates are fixedly connected to the column, and the first connecting plates are fixedly connected to the second connecting plates.

[0018] In some embodiments, there are multiple main beams and multiple columns, with adjacent main beams coaxially connected; the multiple columns are arranged at intervals and connected to the main beams.

[0019] In some embodiments, a plurality of photovoltaic modules are arranged between two adjacent columns, and two adjacent photovoltaic modules are connected to the two ends of a second connection portion.

[0020] The technical advantages of this application are as follows: the photovoltaic modules are suspended from the main beam with their lower sides unsupported, allowing them to rotate freely relative to the main beam. When severe weather such as strong winds or hail occurs, the surface of the photovoltaic modules is subjected to wind loads, causing them to swing freely relative to the main beam. This swinging motion absorbs dynamic wind force. When the wind blows, the lower edge of the photovoltaic modules will rise, creating an angle between the photovoltaic modules and the vertical direction. The greater the wind speed, the larger the angle between the photovoltaic modules and the vertical direction. This design firstly significantly reduces the wind pressure on the surface of the photovoltaic modules and the horizontal wind load on the entire photovoltaic support structure, reducing the damage to the photovoltaic modules caused by severe weather such as hail. Secondly, it reduces the requirements for the horizontal load on the columns and the structural strength requirements at the connection nodes, thereby reducing the column cross-section and saving steel. Attached Figure Description

[0021] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a structural schematic diagram of a vertical windward photovoltaic support provided in a specific embodiment of this application from one viewpoint;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a structural schematic diagram of a vertical windward photovoltaic support provided in a specific embodiment of the application, viewed from another perspective;

[0025] Figure 4 yes Figure 3 Enlarged view of section B in the middle.

[0026] Explanation of icon numbers:

[0027] 10. Columns; 20. Main beams; 30. Photovoltaic modules;

[0028] 41. Purlin; 4101. Recessed groove; 411. Vertical part; 412. Inclined part; 4121. First side plate; 4122. Second side plate; 42. Rotating shaft; 421. Limiting part; 43. Connecting piece; 431. First connecting part; 432. Second connecting part; 44. U-bolt; 45. Pin;

[0029] 51. First connecting plate; 52. Second connecting plate. Detailed Implementation

[0030] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0032] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0033] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) are relative rather than absolute when describing the structure and movement of the various components, and are not intended to limit the direction of the product during actual use.

[0036] Furthermore, in the description of this application, ordinal numbers, such as "first" and "second," are used only to distinguish related objects and should not be construed as indicating or implying the relative importance or order between related objects.

[0037] like Figure 1 and Figure 2 As shown, this application provides an embodiment of a vertical windward photovoltaic support, including a column 10, a main beam 20, and a photovoltaic module 30. The column 10 is vertically installed on the ground; the main beam 20 is fixedly installed on the column 10, and the column 10 is used to support the main beam 20; the upper side of the photovoltaic module 30 is rotatably suspended from the main beam 20, and the lower side is suspended in the air.

[0038] In this embodiment, the photovoltaic module 30 can rotate relative to the main beam 20 and is suspended on its lower side. When severe weather such as strong winds or hail occurs, the surface of the photovoltaic module 30 is subjected to wind loads, and the photovoltaic module 30 will swing freely around the main beam 20, absorbing dynamic wind force through swinging. When the wind blows, the lower edge of the photovoltaic module 30 will rise, so that the photovoltaic module 30 forms a certain angle with the vertical direction. The greater the wind speed, the larger the angle formed by the photovoltaic module 30 with the vertical direction. This design firstly greatly reduces the wind pressure on the surface of the photovoltaic module 30 and the horizontal wind load on the entire photovoltaic support; secondly, it reduces the requirements for the horizontal load of the column 10 and the structural strength requirements at the connection nodes, thereby reducing the cross-section of the column 10 and saving steel. In addition, the vertical installation of the photovoltaic module 30 reduces land occupation, preserving the maximum arable land while generating photovoltaic power.

[0039] In this embodiment, there are multiple main beams 20 and columns 10, with adjacent main beams 20 coaxially connected; multiple columns 10 are arranged at intervals and connected to the main beams 20. Multiple photovoltaic modules 30 can be arranged between adjacent columns 10.

[0040] In some embodiments, a connecting component is further included, which is used to connect the photovoltaic module 30 to the main beam 20. The connecting component includes a purlin 41, a pivot 42, and a connector 43. The purlin 41 is fixedly connected to the main beam 20, and the connector 43 is rotatably connected to the purlin 41 through the pivot 42. Each side of the photovoltaic module 30 is fixedly connected to a connector 43, that is, a photovoltaic module 30 is provided between every two connecting components, and each side of the photovoltaic module 30 is connected to a connector 43 to fix the photovoltaic module 30 and improve the stability of the photovoltaic module 30.

[0041] In one specific embodiment, the connection point between the connector 43 and the photovoltaic module 30 is located above the center of gravity of the photovoltaic module 30. Preferably, the connection point between the connector 43 and the photovoltaic module 30 is located at the top of the photovoltaic module 30. Positioning the connection point between the connector 43 and the photovoltaic module 30 above the center of gravity not only shortens the length of the connector 43, saving materials and reducing production costs, but also reduces the swaying torque, allowing the surface of the photovoltaic module 30 to easily sway with the wind when subjected to wind loads, thus reducing the wind pressure borne by the photovoltaic module 30.

[0042] In one specific embodiment, such as Figure 3 and Figure 4As shown, the connecting assembly also includes U-bolts 44. The purlin 41 has two bolt holes. The U-bolts 44 encircle the main beam 20, with both ends fixedly connected to the two bolt holes to securely connect the purlin 41 and the main beam 20. In this embodiment, the purlin 41 and the U-bolts 44 cooperate to form a clamp structure that encircles the main beam 20, achieving a fixed connection between the purlin 41 and the main beam 20. A recessed groove 4101 adapted to the outer contour of the main beam 20 can be provided on the purlin 41 to improve the stability of the connection between the purlin 41 and the main beam 20. This embodiment does not limit the structure and cross-sectional shape of the main beam 20; for example, the cross-sectional shape of the main beam 20 can be circular, elliptical, rectangular, or polygonal. Figure 2 and Figure 4 A schematic diagram is shown when the cross-section of the main beam 20 is circular. When the cross-section of the main beam 20 is circular, the recessed groove 4101 can be arc-shaped. The recessed groove 4101 is fitted to a portion of the main beam 20, and then the purlin 41 is fixed to the main beam 20 by U-bolts 44 to improve the connection stability between the purlin 41 and the main beam 20. When the cross-section of the main beam 20 is of other shapes, the recessed groove 4101 on the purlin 41 is also of other shapes that adapt to the outer contour of the main beam 20.

[0043] like Figure 2 As shown, the purlin 41 may include a vertical part 411 and an inclined part 412. One end of the vertical part 411 is fixedly connected to the main beam 20, and one end of the inclined part 412 is fixedly connected to the other end of the vertical part 411. The other end of the inclined part 412 extends downward toward the main beam 20, that is, it is inclined toward the side away from the photovoltaic module 30, so as to set the bolt hole of the U bolt 44 on the vertical part 411. The rotating shaft 42 is set on the inclined part 412 and located directly below the main beam 20. The vertical part 411 is located on one side of the main beam 20, and the free end of the inclined part 412 is inclined away from the photovoltaic module 30, so that the inclined part 412 is located directly below the main beam 20. The rotating shaft 42 is located on the inclined part 412, so that the rotating shaft 42 is located directly below the main beam 20. This makes the weight and force of the photovoltaic module 30 closer to the support point of the main beam 20, which helps to maintain mechanical balance and improve overall stability, reduce the torque generated by wind or self-weight, and thus reduce the stress on the main beam 20.

[0044] Furthermore, the central axis of the rotating shaft 42 and the central axis of the main beam 20 are located in the same vertical plane, avoiding eccentricity of the rotating shaft 42, further improving the overall stability, reducing the torque generated by wind or self-weight, thereby reducing the stress on the main beam 20 and reducing vibration caused by wind, thus improving the stability and lifespan of the support.

[0045] like Figure 2As shown, the inclined portion 412 may include a first side plate 4121 and a second side plate 4122 arranged opposite to each other along the axial direction of the rotating shaft 42, and the rotating shaft 42 is rotatably connected to the first side plate 4121 and the second side plate 4122; one end of the connector 43 is fixed on the rotating shaft 42 and located between the first side plate 4121 and the second side plate 4122, and the other end of the connector 43 is connected to the photovoltaic module 30. The inclined part 412 is composed of a first side plate 4121 and a second side plate 4122 arranged opposite to each other. The first side plate 4121 and the second side plate 4122 are spaced apart by a certain distance, which can save the material of the purlin 41. One end of the connector 43 is fixedly connected to the rotating shaft 42 and is located between the first side plate 4121 and the second side plate 4122. The space between the first side plate 4121 and the second side plate 4122 can form a space for the connector 43 to rotate freely. When the photovoltaic module 30 rotates vertically under the action of wind, it drives the rotating shaft 42 and the connector 43 to rotate together relative to the purlin 41. At this time, the connector 43 can rotate freely in the space between the first side plate 4121 and the second side plate 4122 to avoid interference with the rotation of the connector 43, thereby allowing the photovoltaic module 30 to rotate freely in the vertical direction under the action of wind.

[0046] The first side plate 4121 and the second side plate 4122 are respectively provided with through holes. The rotating shaft 42 passes through the through holes of the first side plate 4121 and the second side plate 4122. One end of the rotating shaft 42 is limited by the limiting part 421, and the other end of the rotating shaft 42 can be provided with a pin hole and limited by the pin 45. The connecting piece 43 can be fixed on the rotating shaft 42 and fixedly connected to the rotating shaft 42 by welding or other means. During installation, the rotating shaft 42 can be inserted into the through hole of the first side plate 4121 first, then the connecting piece 43 can be inserted between the first side plate 4121 and the second side plate 4122 and fixed on the rotating shaft 42, then the rotating shaft 42 can be passed into the through hole on the second side plate 4122, and finally the pin 45 can be inserted into the pin hole on the rotating shaft 42 to limit the rotating shaft 42.

[0047] In one specific embodiment, such as Figure 2As shown, the connector 43 includes two first connecting portions 431 and one second connecting portion 432. The two first connecting portions 431 are arranged opposite to each other, with their first ends fixedly connected to the rotating shaft 42 and located between the first side plate 4121 and the second side plate 4122. The second ends of the two first connecting portions 431 are fixedly connected to the second connecting portion 432. One end of the second connecting portion 432 is fixedly connected to the edge of a photovoltaic module 30, and the other end of the second connecting portion 432 is fixedly connected to the edge of an adjacent photovoltaic module 30. The second connecting portion 432 is connected to the rotating shaft 42 through two spaced-apart first connecting portions 431, which improves the stability of the connection between the second connecting portion 432 and the rotating shaft 42, thereby improving the connection stability of the photovoltaic module 30. When multiple photovoltaic modules 30 are arranged between two adjacent columns 10, two adjacent photovoltaic modules 30 are connected to the two ends of a second connecting portion 432.

[0048] In this embodiment, two first connecting portions 431 are spaced apart along the axial direction of the rotating shaft 42, and both first connecting portions 431 extend radially along the rotating shaft 42; the second connecting portion 432 extends axially along the rotating shaft 42. The distance between the first ends of the two first connecting portions 431 is less than the distance between the second ends of the two first connecting portions 431.

[0049] The smaller distance between the ends of the two first connecting parts 431 connected to the rotating shaft 42 not only reduces the distance between the first side plate 4121 and the second side plate 4122, thereby reducing the volume of the purlin 41 and the amount of material used in the purlin 41, but also helps to increase the rigidity of the connector 43 structure, improve the bending and torsional strength of the connector 43, and reduce bending or twisting of the connector 43 during rotation. The larger distance between the ends of the two first connecting parts 431 connected to the second connecting part 432 allows for more even load distribution, reduces local stress in the second connecting part 432, and improves structural stability.

[0050] In one specific embodiment, such as Figure 1 As shown, the vertical windward photovoltaic support also includes multiple first connecting plates 51 and multiple second connecting plates 52. The first connecting plates 51 are fixedly connected to the main beam 20, and the second connecting plates 52 are fixedly connected to the column 10. The main beam 20 and the column 10 are fixedly connected through the first connecting plates 51 and the second connecting plates 52. This embodiment does not limit the specific structure of the first connecting plates 51 and the second connecting plates 52, as long as they can achieve the fixed connection between the main beam 20 and the column 10. For example, the first connecting plate 51 is a Z-shaped connecting plate, and the second connecting plate 52 is a U-shaped connecting plate. The main beam 20 and the column 10 are fixedly connected by the Z-shaped connecting plate, the U-shaped connecting plate, and through bolts.

[0051] When installing a vertical windward photovoltaic (PV) support, the first step is to drive piles on-site according to the design drawings, embedding the column 10 to the designed depth. The second step is to place the main beam 20 on top of the column 10, and then connect and fix the main beam 20 and the column 10 using the first connecting plate 51, the second connecting plate 52, and through bolts. The third step is to fix the purlin 41 to the main beam 20, and then fix the purlin 41 to the main beam 20 using U-bolts 44. The fourth step is to install the rotating shaft 42 and the connector 43 at the lower end of the purlin 41. The fifth step is to install the PV module 30, lift the PV module 30 to a suitable position, and fix the PV module 30 to the connector 43 with bolts at the top of the PV module 30.

[0052] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0053] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A vertical windward photovoltaic support, characterized in that, include: Columns; The main beam is fixedly mounted on the column; The photovoltaic module and the connecting component are provided. The upper side of the photovoltaic module is rotatably suspended from the main beam through the connecting component, and the lower side is suspended in the air.

2. A vertical windward photovoltaic support according to claim 1, characterized in that, The connecting assembly includes a purlin, a pivot, and a connector. The purlin is fixedly connected to the main beam, and the connector is rotatably connected to the purlin via the pivot. The photovoltaic module is fixedly connected to one of the connectors on each side.

3. A vertical windward photovoltaic support according to claim 2, characterized in that, The purlin includes a vertical part and an inclined part. One end of the vertical part is fixedly connected to the main beam, and one end of the inclined part is fixedly connected to the other end of the vertical part. The other end of the inclined part extends downward toward the main beam, and the pivot is disposed on the inclined part and located directly below the main beam.

4. A vertical windward photovoltaic support according to claim 3, characterized in that, The central axis of the rotating shaft and the central axis of the main beam are located in the same vertical plane.

5. A vertical windward photovoltaic support according to claim 3, characterized in that, The inclined portion includes a first side plate and a second side plate arranged opposite to each other along the axial direction of the rotating shaft, and the rotating shaft is rotatably connected to the first side plate and the second side plate; One end of the connector is fixed on the rotating shaft and located between the first side plate and the second side plate, and the other end of the connector is connected to the photovoltaic module.

6. A vertical windward photovoltaic support according to claim 5, characterized in that, The connector includes two first connecting parts and one second connecting part; the two first connecting parts are arranged opposite to each other, the first ends of the two first connecting parts are respectively fixedly connected to the rotating shaft and located between the first side plate and the second side plate, the second ends of the two first connecting parts are respectively fixedly connected to the second connecting part; the second connecting part is fixedly connected to the edge of the photovoltaic module.

7. A vertical windward photovoltaic support according to claim 6, characterized in that, The distance between the first ends of the two first connecting parts is less than the distance between the second ends of the two first connecting parts.

8. A vertical windward photovoltaic support according to claim 1, characterized in that, It also includes multiple first connecting plates and multiple second connecting plates, wherein the first connecting plates are fixedly connected to the main beam, the second connecting plates are fixedly connected to the column, and the first connecting plates are fixedly connected to the second connecting plates.

9. A vertical windward photovoltaic support according to claim 6 or 7, characterized in that, There are multiple main beams and multiple columns, with adjacent main beams coaxially connected; the multiple columns are arranged at intervals and connected to the main beams.

10. A vertical windward photovoltaic support according to claim 9, characterized in that, Multiple photovoltaic modules are arranged between two adjacent columns, and two adjacent photovoltaic modules are connected to the two ends of a second connection portion.

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