Photovoltaic support and photovoltaic power generation system

Abstract

The invention belongs to the technical field of photovoltaic power generation, and discloses a photovoltaic support and a photovoltaic power generation system. The photovoltaic support comprises a stand column, and the stand column comprises a column body, a first bearing part and a second bearing part. The stand column is fixed on a mounting surface; the first bearing part is arranged on the first side of the column body in the first direction; the second bearing part is arranged on the second side of the column body. The plurality of stand columns are arranged at intervals along the first direction, so that in two adjacent stand columns, the first bearing part of one stand column and the second bearing part of the other stand column are used for jointly bearing the photovoltaic module between the two adjacent stand columns. For the photovoltaic assembly, the photovoltaic assembly can be jointly borne by the stand columns on the two sides in the first direction, the structural stability and wind resistance of the photovoltaic assembly are enhanced, the height of the stand columns can be properly increased on the basis, and enough space is reserved for the lower portion. And the two adjacent groups of photovoltaic modules in the first direction can share the upright post between the two groups of photovoltaic modules, so that the number of required upright posts is reduced, and the overall cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic bracket and a photovoltaic power generation system. Background Art

[0002] With the development of the energy industry, the use of clean energy has received more and more attention. Among them, photovoltaic power generation plays an important role in the field of clean energy and has broad market prospects and development potential. When performing photovoltaic power generation, photovoltaic brackets are needed to support photovoltaic modules so that photovoltaic modules can receive light and generate electricity. Due to the limited area of ​​high-quality land for the construction of solar photovoltaic power stations, photovoltaic power generation companies usually need to combine photovoltaic power generation projects with other industries such as agriculture, fisheries, forestry or animal husbandry, that is, the so-called photovoltaic composite project, to achieve composite utilization of land and improve energy utilization efficiency and economic benefits.

[0003] In the prior art, there are two main types of photovoltaic brackets used in photovoltaic composite projects: one is a fixed photovoltaic bracket and the other is a flexible photovoltaic bracket. Fixed photovoltaic brackets have good structural rigidity and a clear force transmission path, but the cost of the support structure is relatively high, and in order to enhance wind resistance and reduce costs, the support structure is low in height and the lower space is small, which cannot meet the space requirements of photovoltaic composite projects; while flexible photovoltaic brackets are installed at a higher height to meet the lower space requirements, but their structural rigidity is low and wind resistance is poor. Summary of the invention

[0004] The object of the present invention is to provide a photovoltaic bracket and a photovoltaic bracket system, so as to have better structural stability when carrying photovoltaic components and reserve sufficient space for the lower part of the photovoltaic components, and reduce the cost of the photovoltaic bracket.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In one aspect, the present invention provides a photovoltaic support for supporting and fixing a photovoltaic module, comprising:

[0007] A column, the column is used to be fixed on the installation surface, the column comprises a column body, a first bearing portion and a second bearing portion, the first bearing portion is arranged on a first side of the column body along a first direction, and the second bearing portion is arranged on a second side of the column along the first direction;

[0008] A plurality of the columns are arranged at intervals along the first direction, and among two adjacent columns, the first bearing portion of one column and the second bearing portion of the other column are used to jointly bear the photovoltaic components between the two adjacent columns.

[0009] Preferably, the horizontal height of the first bearing portion is lower than the horizontal height of the second bearing portion, and the height of the first bearing portion and / or the second bearing portion on the column is adjustable.

[0010] Preferably, the column is provided with a slide groove along the height direction, and the first bearing portion and / or the second bearing portion are correspondingly provided with a sliding protrusion that can extend into the slide groove and be slidably connected with the slide groove.

[0011] Preferably, the first bearing portion includes a first bearing surface, which is inclined upward from an end close to the column to an end away from the column, and the second bearing portion includes a second bearing surface, which is inclined downward from an end close to the column to an end away from the column, and the plane where the first bearing surface is located is parallel to the plane where the second bearing surface is located.

[0012] Preferably, the first bearing portion comprises a first upper flange plate, a first lower flange plate and a first web plate located therebetween, the first web plate being perpendicular to and connected to the first upper flange plate and the first lower flange plate, the first upper flange plate being inclined upward from an end close to the column to an end away from the column, and the first web plate being connected to an end close to the column with a first slider; the second bearing portion comprises a second upper flange plate, a second lower flange plate and a second web plate located therebetween, the second web plate being perpendicular to and connected to the second upper flange plate and the second lower flange plate, the second upper flange plate being inclined downward from an end close to the column to an end away from the column, and the second web plate being connected to an end close to the column with a second slider.

[0013] Preferably, the column includes column limbs and attachments, two column limbs are arranged at intervals along the first direction, and a plurality of attachments are arranged between the two column limbs and connect the two column limbs.

[0014] Preferably, the columns are arranged in more than two rows, the columns in each row are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, and the columns in two adjacent rows are used to support photovoltaic components arranged along the second direction.

[0015] Preferably, the photovoltaic bracket also includes a supporting assembly, which is arranged between two adjacent rows of the columns and is used to support the photovoltaic assembly. The lower surface of the supporting assembly is used to connect with the first bearing part and the second bearing part, and the upper surface of the supporting assembly is used to connect with the photovoltaic assembly.

[0016] Preferably, the supporting assembly includes beams and purlins, the beams include a first beam and a second beam extending along the second direction, the first beam is mounted on the first bearing portion of one row of the columns, the second beam is mounted on the second bearing portion of another row of the columns, a plurality of purlins are laid between the first beam and the second beam, and the purlins are used for laying the photovoltaic components.

[0017] On the other hand, the present invention provides a photovoltaic power generation system, which includes a photovoltaic component and the above-mentioned photovoltaic bracket, and the photovoltaic component is arranged between two adjacent columns of the photovoltaic bracket.

[0018] Beneficial effects:

[0019] The present invention provides a photovoltaic support, which includes a column, which is used to be fixed on a mounting surface, and the column includes a column, a first bearing part and a second bearing part. The first bearing part is arranged on the first side of the column along the first direction, and the second bearing part is arranged on the second side of the column along the first direction, and a plurality of columns are arranged at intervals along the first direction. When supporting and fixing a photovoltaic component, the first bearing part of one column and the second bearing part of the other column in two adjacent columns are used to jointly bear the photovoltaic components between the two adjacent columns. That is, each column can simultaneously support the photovoltaic components on both sides of it along the first direction. Correspondingly, the photovoltaic component can be jointly carried by the columns located on both sides of it along the first direction, and has better structural stability and wind resistance. On the basis of the stability of the photovoltaic component structure, the height of the column can be appropriately increased, and sufficient space is reserved for the lower part of the photovoltaic component to meet the space requirements of the photovoltaic composite project; and each column can simultaneously support the photovoltaic components on both sides of it along the first direction, and it is not necessary to set independent support structures on both sides of each photovoltaic component along the first direction, thereby reducing the number of columns required to reduce the overall cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a column of a photovoltaic support provided by the present invention;

[0021] Figure 2 It is a top view of a column of a photovoltaic support provided by the present invention;

[0022] Figure 3 is a schematic diagram of a first bearing portion of a photovoltaic support provided by the present invention;

[0023] Figure 4 is a schematic diagram of the second bearing portion of the photovoltaic bracket provided by the present invention;

[0024] Figure 5 is a schematic diagram of a supporting assembly of a photovoltaic support provided by the present invention;

[0025] Figure 6 It is an overall schematic diagram of the photovoltaic bracket provided by the present invention;

[0026] Figure 7 It is a schematic diagram of the photovoltaic power generation system provided by the present invention.

[0027] In the figure:

[0028] 1. Column; 11. Column limb; 12. Fitting; 13. Slide; 2. First load-bearing part; 21. First upper flange plate; 22. First web plate; 23. First stiffening rib plate; 24. First lower flange plate; 25. First slider; 3. Second load-bearing part; 33. Second stiffening rib plate; 34. Second lower flange plate; 35. Second slider; 4. Crossbeam; 5. Purlin; 6. Third stiffening rib plate; 7. Photovoltaic module; 8. Limit plate. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] In addition, in the drawings, the first direction is shown as the X direction, wherein the direction along the arrow is the first side of the first direction, away from the arrow direction is the second side of the first direction, and the second direction perpendicular to the first direction is shown as the Y direction.

[0034] like Figure 1-Figure 6 As shown, this embodiment provides a photovoltaic bracket for supporting and fixing a photovoltaic module 7. It includes a column, which is used to be fixed on a mounting surface. The column includes a column 1, a first bearing portion 2 and a second bearing portion 3. The first bearing portion 2 is arranged on a first side of the column 1 along a first direction; the second bearing portion 3 is arranged on a second side of the column 1 along the first direction. A plurality of columns are arranged at intervals along the first direction, so that among two adjacent columns, the first bearing portion 2 of one column and the second bearing portion 3 of the other column are used to jointly carry the photovoltaic module 7 between the two adjacent columns.

[0035] The mounting surface of the column can be the ground or the surface of other objects. And the above-mentioned mounting surface can be a plane or an inclined surface. When fixed on a plane, the column is perpendicular to the plane, and when fixed on an inclined surface, the axial direction of the column is set along the direction of gravity. When supporting and fixing the photovoltaic assembly 7, each column cooperates with its first bearing part 2 and the second bearing part 3 to simultaneously support the photovoltaic assembly 7 located on both sides of the column along the first direction. For the photovoltaic assembly 7, it can be jointly supported by the columns located on both sides of it along the first direction, which enhances the structural stability and wind resistance of the photovoltaic assembly 7. On the basis of the stable structure of the photovoltaic assembly 7, the height of the column can be appropriately increased to reserve sufficient space for the lower part of the photovoltaic assembly 7 to meet the demand for the lower space of the photovoltaic composite project. And two groups of photovoltaic assemblies 7 adjacent to each other along the first direction can share the column between them, reducing the number of required columns to reduce the overall cost.

[0036] Specifically, in this embodiment, the horizontal height of the first bearing part 2 is lower than the horizontal height of the second bearing part 3 and the height of the first bearing part 2 and / or the second bearing part 3 on the column 1 is adjustable. When the photovoltaic component 7 is carried by the first bearing part 2 and the second bearing part 3, its end close to the first bearing part 2 is higher than its end close to the second bearing part 3. That is, the photovoltaic component 7 can maintain a certain tilt angle. Taking the northern hemisphere as an example, due to the high latitude, the direction of sunlight irradiation is inclined. If the end of the photovoltaic component 7 located in the north is higher and the end located in the south is lower, the sunlight can be irradiated vertically, which is convenient for improving the power generation efficiency of the photovoltaic component 7. That is, if it is located in the northern hemisphere, the first side direction in this embodiment is toward the north, and the second side direction is toward the south. The second bearing part 3 of the column located in the north is higher than the first bearing part 2 of the column located in the south. After the photovoltaic component 7 is placed, it can be guaranteed to be vertically irradiated by sunlight, and has a higher photovoltaic power generation efficiency. In addition, under the premise that the distance between two adjacent columns remains unchanged, when the height of the first bearing part 2 and the second bearing part 3 between the two columns changes, the inclination of the photovoltaic component 7 subsequently arranged between the first bearing part 2 and the second bearing part 3 between the two adjacent columns can be changed to better receive sunlight.

[0037] Furthermore, in this embodiment, the column 1 is provided with a slide groove 13 along the height direction, and the first bearing part 2 and / or the second bearing part 3 are correspondingly provided with a sliding protrusion that can extend into the slide groove 13 and is slidably connected with the slide groove 13. Taking the adjustable height of the first bearing part 2 on the column 1 as an example, the sliding protrusion is arranged in the slide groove 13, and the cross-sectional area of ​​the notch of the slide groove 13 is smaller than the cross-sectional area of ​​the sliding protrusion, so that the sliding protrusion will not fall out of the slide groove 13. Furthermore, the slide groove 13 can be arranged with fixing holes along the height direction, and the sliding protrusion can be provided with a matching hole. The sliding protrusion can be fixed by using a fixing member such as a screw to pass through the fixing hole and the matching hole, thereby fixing the first bearing part 2 at a certain height. The second bearing part 3 is also arranged according to the above scheme, which will not be repeated here.

[0038] Furthermore, in the present embodiment, the first bearing portion 2 includes a first bearing surface, the first bearing surface is inclined upward from one end close to the column 1 to one end away from the column 1, and the second bearing portion 3 includes a second bearing surface, the second bearing surface is inclined downward from one end close to the column 1 to one end away from the column 1, and the plane where the first bearing surface is located is parallel to the plane where the second bearing surface is located. When two columns adjacent to each other along the first direction are used to jointly support the photovoltaic component 7, the two columns can be placed at a fixed distance so that the second bearing surface of the column on the first side is located in the same plane as the first bearing surface of the other column. The photovoltaic component 7 itself is a flat plate structure. When the photovoltaic component 7 is set, the first bearing surface and the second bearing surface located in the same plane can more stably support the photovoltaic component 7 with a flat plate structure, and the inclined first bearing surface and the second bearing surface can ensure that the photovoltaic component 7 has the same inclination angle to better receive sunlight.

[0039] In some other embodiments, the first bearing part 2 may not include the first bearing surface, and the second bearing part 3 may not include the second bearing surface. The first bearing part 2 and the second bearing part 3 may be structures such as a clamping frame and a hook lock, and the photovoltaic component 7 is fixed between adjacent columns by clamping, locking, etc. The first bearing part 2 and the second bearing part 3 may also be structures such as a supporting ball and a supporting cylinder, and provide a supporting effect for the photovoltaic component 7 by point contact or line contact, which is not limited in this embodiment.

[0040] Furthermore, in the present embodiment, the first bearing portion 2 comprises a first upper flange plate 21, a first lower flange plate 24 and a first web plate 22 located therebetween, the first web plate 22 being perpendicular to the first upper flange plate 21 and the first lower flange plate 24 and being connected thereto, the first upper flange plate 21 being inclined upward from an end close to the column 1 to an end away from the column 1, and the end of the first web plate 22 close to the column 1 is connected to a first slider 25; the second bearing portion 3 comprises a second upper flange plate 31, a second lower flange plate 34 and a second web plate 32 located therebetween, the second web plate 32 being perpendicular to the second upper flange plate 31 and the second lower flange plate 34 and being connected thereto, the second upper flange plate 31 being inclined downward from an end close to the column 1 to an end away from the column 1, and the end of the second web plate 32 close to the column 1 is connected to a second slider 35. That is, the first bearing part 2 and the second bearing part 3 are both corbels arranged on the column. Taking the first bearing part 2 as an example, the first web connects the first upper flange plate and the first lower flange plate, and transmits the force to the lower flange plate when the first upper flange plate is subjected to pressure, so that the corbel structure is more evenly stressed. A first stiffening rib is arranged at the web of the first bearing part 2, and the first stiffening rib is perpendicular to the first web 22, which helps the first web share the force between the first upper flange plate and the first lower flange plate to improve the strength of the corbel structure. The second bearing part 3 also has a corresponding arrangement, which will not be repeated here. The upper surface of the first upper flange plate 21 forms a first bearing surface, and the upper surface of the second upper flange plate 31 forms a second bearing surface. In addition, the first slider 25 and the second slider 35 each extend into the slide groove 13 of the column, and can slide along the slide groove 13 to adjust the height of the first bearing part 2 and the second bearing part 3 when fixed. The bottom of the chute 13 is provided with a threaded hole, and the first slider 35 and the second slider 35 are provided with screw holes at positions corresponding to the threaded holes. The first slider 25 and the second slider 35 can be fixed in position by passing a screw through the screw hole and then being threadedly connected with the screw hole. The first slider 25 and the second slider 35 are both provided with a hollow cavity to reduce the overall weight and reduce the use of materials and reduce costs. In addition, a limit plate 8 can also be provided on the column, and the limit plate 8 is tightly arranged below the first bearing part 2 and / or the second bearing part to further fix the first bearing part 2 and / or the second bearing part.

[0041] In some other embodiments, the first bearing part 2 and the second bearing part 3 may also be structures such as grooves, bumps, platforms, etc. that are provided by or connected to the column, which is not limited in this embodiment. Taking bumps as an example, a first bump may be provided on the first side of the column, and a second bump may be provided on the second side. The upper surface of the first bump serves as the first bearing surface, and the upper surface of the second bump serves as the second bearing surface. The planes on which the upper surfaces of the two bumps are located are parallel.

[0042] Specifically, in this embodiment, each column includes a first bearing portion 2 and a second bearing portion 3. In some other implementations, the number of the first bearing portion 2 and the second bearing portion 3 can be one or more, which is not limited in this embodiment.

[0043] Furthermore, in this embodiment, the column 1 includes a column limb 11 and a fitting 12, the two column limbs 11 are arranged at intervals along the first direction, and a plurality of fittings 12 are arranged between the two column limbs 11 to connect the two column limbs 11. That is, the column 1 is a two-limb lattice column, which can better bear and transfer loads and can bear pressure vertically when subjected to force, thereby preventing the column 1 from radially deviating and enhancing the structural stability between the column 1 and the mounting surface.

[0044] Furthermore, a plurality of attachments 12 are arranged on both sides of the two column limbs 11 along the second direction, and one end of each attachment 12 is fixedly connected to the side wall of one of the column limbs 11, and the other end is fixedly connected to the side wall of the other column limb 11. When each column limb 11 is subjected to force, the force can be transmitted through the attachment 12 on the side wall, so that the two column limbs 11 are uniformly subjected to force. Moreover, the attachment 12 is fixed to the side wall of the column limb 11, which facilitates the attachment 12 to be installed from the outside, thereby reducing the difficulty of producing the column 1.

[0045] Furthermore, the column limb 11 is a channel steel and the attachment 12 is a tie bar. The two channel steels are placed vertically with the grooves facing each other, and the two ends of the tie bar are respectively fixed on the side walls of the two channel steels. The tie bar can be fixed by threaded connection, welding, etc., which is not limited in this embodiment. The channel steel 11 can bear axial force, and the tie bar can resist radial force. The two are combined to ensure that the column 1 as a whole has sufficient structural strength. In addition, the channel steel has a hollow part, which reduces the use of materials and reduces production costs while ensuring structural strength. In some other embodiments, the attachment 12 can also be a tie plate to further improve the mechanical properties of the attachment 12, which is not limited in this embodiment.

[0046] Furthermore, the slide groove 13 is arranged on the side where the two groove steels are away from each other, and is formed by the groove steel being recessed inward, and the slide groove 13 passes through the groove steel up and down, so that the first slider 25 and the second slider 35 can slide into the slide groove from the upper end or the lower end.

[0047] like Figure 4 , Figure 5As shown, in this embodiment, more than two rows of columns are provided, and each row of columns is arranged at intervals along the second direction, and two adjacent rows of columns are used to carry photovoltaic modules 7 arranged along the second direction. And the second bearing portion 3 of a row of columns on the first side of the first direction and the first bearing portion 2 of another row of columns can jointly carry the photovoltaic modules 7 between two adjacent rows of columns. Two adjacent rows of columns can provide support for a row of photovoltaic modules 7 arranged along the second direction between the two rows. If the number of rows of photovoltaic modules 7 is N, the number of rows of columns is N+1. When expanding the already arranged photovoltaic bracket, one or more rows of new columns can be added, and each new row of columns can provide support for a new row of photovoltaic modules 7; new columns can also be added at the end of each row of columns, that is, the number of columns in each row is increased, and the number of photovoltaic modules 7 that can be carried between the two rows of columns is also increased accordingly. After the expansion of the photovoltaic bracket is completed, it is only necessary to lay the newly added photovoltaic modules to achieve the expansion of the photovoltaic project. Therefore, the use of this photovoltaic bracket can achieve the rapid expansion and laying of the photovoltaic project.

[0048] Furthermore, in this embodiment, the first bearing surface and the second bearing surface between two adjacent rows of columns are located in the same plane, and when carrying the photovoltaic module 7, the first bearing surface and the second bearing surface are easier to install the photovoltaic module 7 with a flat plate structure to provide more stable support. It can be understood that when the inclination degree and height of the first bearing surface and the second bearing surface are determined, the span between the two adjacent rows of columns is also fixed.

[0049] Furthermore, in this embodiment, the heights of the first bearing surface and the second bearing surface can be adjusted according to the laying span of the columns required by the photovoltaic power generation system. If the required span is larger, the height difference between the first bearing surface and the second bearing surface is also larger; if the required span is smaller, the height difference between the first bearing surface and the second bearing surface is also smaller. After the heights of the first bearing surface and the second bearing surface are adjusted, the photovoltaic module can be installed to obtain the preset laying span.

[0050] Specifically, the photovoltaic power generation system also includes a supporting component, which is arranged between two adjacent rows of columns and is used to support the photovoltaic component 7. The lower surface of the supporting component is used to connect with the first bearing part 2 and the second bearing part 3, and the upper surface of the supporting component is used to connect with the photovoltaic component 7. The photovoltaic component 7 includes components such as photovoltaic glass and battery cells, and its own mechanical strength is not high. If it is directly supported by the first bearing part 2 and the second bearing part 3, the pressure generated at the lower surface of the photovoltaic component 7 is too large, which is easy to damage the photovoltaic component 7. The supporting component is located between the photovoltaic component 7 and the first bearing part 2 and the second bearing part 3 to support the photovoltaic component 7, share the pressure generated by the photovoltaic component 7, make the force on the lower surface of the photovoltaic component 7 uniform, and avoid damage to the photovoltaic component 7.

[0051] Furthermore, the supporting assembly includes a crossbeam 4 and a purlin 5. The crossbeam 4 includes a first crossbeam and a second crossbeam extending along the second direction. The first crossbeam 4 is mounted on the first bearing portion 2 of one row of columns, and the second crossbeam is mounted on the second bearing portion 3 of another row of columns. A plurality of purlins 5 are laid between the first crossbeam and the second crossbeam. The purlins 5 are used to lay the photovoltaic modules 7. The crossbeam 4 can be connected to the first bearing portion 2 and the second bearing portion 3 and provide installation space for the purlins 5. After the purlins 5 are laid, each purlin 5 located below the photovoltaic modules 7 can share the force, so that the force on the lower surface of the photovoltaic modules 7 is uniform, thereby avoiding damage to the photovoltaic modules 7. At the same time, after the purlins 5 are installed, the pressure of the photovoltaic modules 7 can be transmitted to the first crossbeam and the second crossbeam at the same time, and then the two rows of columns jointly bear the force, thereby avoiding the overload of the single row of columns due to excessive force. Furthermore, each purlin 5 is arranged perpendicularly to the first crossbeam and the second crossbeam, so that the length of each purlin is slightly longer than the interval between the first crossbeam and the second crossbeam, thereby reducing the material usage of the purlin 5 .

[0052] Furthermore, in this embodiment, the crossbeam 4 is an I-beam, and the purlin 5 is a cold-bent thin-walled channel steel. The I-beam can be connected to the first bearing surface and the second bearing surface by welding or threading, and the purlin 5 is fixed to the I-beam by welding or threading. When the purlin 5 is subjected to the pressure generated by the photovoltaic module 7, it can be transmitted to the support column through the I-beam, and the force transmission path is clear; and the steel beam, purlin 5 and other structures are all made of metal, and the connection method is welding or threading, which has a high structural rigidity. The I-beam includes an upper leg plate, a lower leg plate and a waist plate, the upper leg plate is used to connect with the purlin 5, the lower leg plate is used to connect with the first bearing surface and the second bearing surface, and the waist plate is used to connect and fix the upper leg plate and the lower leg plate. At the same time, a third stiffening rib plate 6 is provided at the corresponding position of the I-beam and each purlin 5 to strengthen the structural strength of the I-beam and prevent local compression instability.

[0053] Specifically, in this embodiment, the columns, I-beams, purlins 5 and photovoltaic modules 7 are all pre-fabricated in the factory, and the structure is streamlined. When laying the photovoltaic power generation system, only the columns, I-beams, purlins 5 and photovoltaic modules 7 need to be assembled, and the installation is convenient and quick.

[0054] like Figure 6, this embodiment provides a photovoltaic power generation system, which includes a photovoltaic module 7 and the above-mentioned photovoltaic bracket. The photovoltaic module 7 is arranged on the photovoltaic bracket, between two adjacent columns, and the photovoltaic module 7 is spaced apart from the column on the second side along the first direction. Specifically, the photovoltaic module 7 is laid on the purlin 5, and the photovoltaic module 7 is spaced apart from the column on the second side along the first direction. When sunlight shines vertically on the photovoltaic module 7, the photovoltaic module 7 located on the second side will produce a certain shadow on the first side. The photovoltaic module 7 is spaced apart from the column on its second side, that is, the photovoltaic module 7 is not arranged in the shadow produced by other photovoltaic modules 7, thereby avoiding waste of resources. Furthermore, the photovoltaic module 7 can be fixed to the purlin 5 by a clamp or can be directly fixed to the purlin 5 by fasteners such as bolts or nails, which is not limited in this embodiment.

[0055] Specifically, in this embodiment, the photovoltaic power generation system is installed as follows:

[0056] S1: Conduct measurement and layout to determine the fixing position of the lattice columns and install the lattice columns;

[0057] S2: Installing I-beams on the first bearing parts 2 and the second bearing parts 3 on each row of lattice columns;

[0058] S3: Lay purlins 5 on the I-beam beam, and install photovoltaic modules 7 on the purlins 5.

[0059] Furthermore, the lattice column foundation may be a PHC pipe pile or a gravity concrete foundation.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A photovoltaic bracket for supporting and fixing a photovoltaic module (7), characterized in that: include: A column, the column being used to be fixed on a mounting surface, the column comprising a column body (1), a first bearing portion (2) and a second bearing portion (3), the first bearing portion (2) being arranged on a first side of the column body (1) along a first direction, and the second bearing portion (3) being arranged on a second side of the column body (1) along the first direction; A plurality of the columns are arranged at intervals along the first direction, and among two adjacent columns, the first bearing portion (2) of one column and the second bearing portion (3) of the other column are used to jointly bear the photovoltaic assembly (7) between the two adjacent columns.

2. The photovoltaic bracket according to claim 1, characterized in that: The horizontal height of the first bearing part (2) is lower than the horizontal height of the second bearing part (3), and the height of the first bearing part (2) and / or the second bearing part (3) on the column (1) is adjustable.

3. The photovoltaic bracket according to claim 2, characterized in that: The column (1) is provided with a slide groove (13) along the height direction, and the first bearing part (2) and / or the second bearing part (3) are correspondingly provided with a sliding protrusion that can extend into the slide groove (13) and is slidably connected to the slide groove (13).

4. The photovoltaic support according to claim 3, characterized in that: The first bearing portion (2) comprises a first bearing surface, the first bearing surface is inclined upward from an end close to the column (1) to an end away from the column (1), and the second bearing portion (3) comprises a second bearing surface, the second bearing surface is inclined downward from an end close to the column (1) to an end away from the column (1), and the plane where the first bearing surface is located is parallel to the plane where the second bearing surface is located.

5. The photovoltaic support according to claim 4, characterized in that: The first bearing portion (2) comprises a first upper flange plate (21), a first lower flange plate (24) and a first web plate (22) located therebetween, the first web plate (22) being perpendicular to the first upper flange plate (22) and the first lower flange plate (24) and being connected to the two, the first upper flange plate (21) being inclined upward from an end close to the column (1) to an end away from the column (1), and the end of the first web plate (22) close to the column (1) is connected to a first slider (25); the second bearing portion (3) comprises a second upper flange plate (31), a second lower flange plate (34) and a second web plate (32) located therebetween, the second web plate being perpendicular to the second upper flange plate and the second lower flange plate and being connected to the two, the second upper flange plate being inclined downward from an end close to the column (1) to an end away from the column (1), and the end of the second web plate (22) close to the column (1) is connected to a second slider (35).

6. The photovoltaic support according to claim 1, characterized in that: The column (1) comprises a column limb (11) and a connecting piece (12), wherein two column limbs (11) are arranged at intervals along the first direction, and a plurality of connecting pieces (12) are arranged between the two column limbs (11) and connect the two column limbs (11).

7. The photovoltaic support according to any one of claims 1 to 6, characterized in that: The columns are arranged in more than two rows, and the columns in each row are arranged at intervals along a second direction, the second direction is perpendicular to the first direction, and two adjacent rows of columns are used to carry photovoltaic components (7) arranged along the second direction.

8. The photovoltaic support according to claim 7, characterized in that: The photovoltaic support further comprises a supporting assembly, which is arranged between two adjacent rows of the columns and is used to support the photovoltaic assembly (7); the lower surface of the supporting assembly is used to connect with the first bearing part (2) and the second bearing part (3); and the upper surface of the supporting assembly is used to connect with the photovoltaic assembly (7).

9. The photovoltaic support according to claim 8, characterized in that: The supporting assembly comprises a crossbeam (4) and a purlin (5), the crossbeam (4) comprising a first crossbeam and a second crossbeam extending along the second direction, the first crossbeam being mounted on the first bearing portion (2) of one row of the columns, the second crossbeam being mounted on the second bearing portion (3) of another row of the columns, a plurality of purlins (5) being laid between the first crossbeam and the second crossbeam, and the purlins (5) being used for laying the photovoltaic assembly (7).

10. A photovoltaic power generation system, characterized in that: It comprises a photovoltaic component (7) and a photovoltaic support according to any one of claims 1 to 9, wherein the photovoltaic component (7) is arranged between two adjacent columns of the photovoltaic support.

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