Water surface photovoltaic system

Abstract

The utility model discloses a water surface photovoltaic system which comprises a plurality of photovoltaic units. Each photovoltaic unit comprises a photovoltaic assembly, a floating body structure and a steel frame structure; the steel frame structure comprises an upper steel bar, a middle steel bar and a lower steel bar which are integrally formed and sequentially connected. The upper steel bar and the lower steel bar are located on the two sides of the middle steel bar respectively. The upper steel bar, the middle steel bar and the lower steel bar are parallel to each other in the length direction, and the width direction of the upper steel bar and the width direction of the lower steel bar are parallel to each other and are perpendicular to the width direction of the middle steel bar; the two opposite sides of each photovoltaic assembly are connected through a steel frame structure and a floating body structure respectively. The frame of the photovoltaic assembly is fixedly connected with the upper steel bar of the steel frame structure, and the lower steel bar of the steel frame structure is fixedly connected with the floating body structure. The frame for fixedly installing the photovoltaic module of the water surface photovoltaic system is simple in structure and easy to install, and the installation workload and the material cost of workers are reduced to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic products, in particular to a water surface photovoltaic system. Background Art

[0002] With the increasing scarcity of land resources, the use of photovoltaic modules for surface installation has gradually gained popularity. This has led to their application in coal mining subsidence areas, inland lakes, and offshore locations, significantly expanding the application areas of photovoltaic modules. However, the installation of photovoltaic modules on the surface requires the use of floating structures to support the modules. However, the connection structure between conventional photovoltaic modules and floating structures is often overly complex, with numerous components, making the installation of photovoltaic modules time-consuming and labor-intensive, and increasing the labor and material costs of using photovoltaic modules on the surface. Utility Model Content

[0003] The purpose of the utility model is to provide a water surface photovoltaic system, which reduces the difficulty of installing water surface photovoltaic components and reduces the labor cost and material cost of applying photovoltaic components.

[0004] To solve the above technical problems, the present invention provides a water surface photovoltaic system, comprising a plurality of photovoltaic units; each photovoltaic unit comprises a photovoltaic module, a floating structure for carrying the photovoltaic module, and a steel frame structure for connecting the photovoltaic module and the floating structure;

[0005] The steel frame structure includes an upper steel bar, a middle steel bar, and a lower steel bar that are integrally formed and connected in sequence; the upper steel bar and the lower steel bar are respectively located on both sides of the middle steel bar; the length direction of the upper steel bar, the length direction of the middle steel bar, and the length direction of the lower steel bar are all parallel to each other, and the width direction of the upper steel bar and the width direction of the lower steel bar are parallel to each other and perpendicular to the width direction of the middle steel bar;

[0006] The opposite sides of each photovoltaic module are connected to the floating structure through a steel frame structure respectively; and the frame of the photovoltaic module is fixedly connected to the upper steel bar of the steel frame structure, and the lower steel bar of the steel frame structure is fixedly connected to the floating structure.

[0007] In an optional embodiment of the present application, the photovoltaic units are connected in sequence into multiple rows along the first direction; the photovoltaic units in each row are distributed and connected row by row along the second direction; and the photovoltaic components in two adjacent rows of photovoltaic units are arranged in staggered layers.

[0008] In an optional embodiment of the present application, the heights of the floating structures in the same row of photovoltaic units are the same, and the heights of the floating structures in two adjacent rows of photovoltaic units are different.

[0009] In an optional embodiment of the present application, the photovoltaic module is a double-glass photovoltaic module.

[0010] In an optional embodiment of the present application, at least a frame perpendicular to the second direction of the photovoltaic module has an inclined side surface;

[0011] Among the photovoltaic units in two adjacent rows, the inclined side surfaces of the frames of the photovoltaic components located at the upper layer are inclined downward, and the inclined side surfaces of the frames of the photovoltaic components located at the lower layer are inclined upward.

[0012] In an optional embodiment of the present application, the width of the floating structure is smaller than the width of the photovoltaic module.

[0013] In an optional embodiment of the present application, the upper surface of the floating structure is an inclined surface;

[0014] Each photovoltaic assembly is parallel to the inclined surface of the floating structure to which it is connected.

[0015] In an optional embodiment of the present application, the floating structure is an annular floating structure with a hollow center.

[0016] In an optional embodiment of the present application, the width of the upper steel bar is equal to half the width of the lower steel bar;

[0017] The upper side of the middle steel bar is connected to the side of the upper steel bar; the lower side of the middle steel bar is connected to the middle part of the lower steel bar, and the middle steel bar is located on the symmetrical plane of the lower steel bar;

[0018] The upper steel bar is connected to the frame of the photovoltaic module through at least two screws; the portion of the lower steel bar located on the side of the middle steel bar away from the upper steel bar is fixedly connected to the floating structure through at least two screws.

[0019] In an optional embodiment of the present application, the photovoltaic units are flexibly connected.

[0020] The utility model provides a water surface photovoltaic system, comprising a plurality of photovoltaic units; each photovoltaic unit comprises a photovoltaic module, a floating structure for carrying the photovoltaic module, and a steel frame structure for connecting the photovoltaic module and the floating structure; wherein the steel frame structure comprises an upper steel bar, a middle steel bar and a lower steel bar that are integrally formed and connected in sequence; the upper steel bar and the lower steel bar are respectively located on both sides of the middle steel bar; the length direction of the upper steel bar, the length direction of the middle steel bar and the length direction of the lower steel bar are all parallel to each other, and the width direction of the upper steel bar and the width direction of the lower steel bar are parallel to each other and are both perpendicular to the width direction of the middle steel bar; the opposite sides of each photovoltaic module are respectively connected to the floating structure by a steel frame structure; and the frame of the photovoltaic module is fixedly connected to the upper steel bar of the steel frame structure, and the lower steel bar of the steel frame structure is fixedly connected to the floating structure.

[0021] The surface photovoltaic system of the present application includes several photovoltaic units, each of which includes a floating structure, and each floating structure supports a photovoltaic module through two steel frame structures; on this basis, each steel frame structure is integrally formed by an upper steel bar, a middle steel bar and a lower steel bar, and each photovoltaic module is simply fixedly connected to the floating structure through two integrally formed steel frame structures. When installing the photovoltaic module, the staff only needs to fix the steel frame structure and the frame of the photovoltaic module, and fix the steel frame structure and the floating body to complete the installation of a photovoltaic unit. The entire installation structure is simple and easy to implement, and the frame structure for fixedly installing the photovoltaic module is also simpler, which greatly reduces the installation workload and material costs of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the exploded structure of a photovoltaic unit in a water surface photovoltaic system provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a partial cross-sectional structure of a photovoltaic unit provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of multiple adjacent photovoltaic units of a water surface photovoltaic system provided in an embodiment of the present application;

[0026] In the accompanying drawings: 1 is a photovoltaic module, 11 is a frame, 111 is a side, 2 is a floating structure, 3 is a steel frame structure, 31 is an upper steel bar, 32 is a middle steel bar, and 33 is a lower steel bar. DETAILED DESCRIPTION

[0027] The core of the utility model is to provide a water surface photovoltaic system, which can simplify the photovoltaic component installation structure to a certain extent, thereby simplifying the installation workload of the staff and reducing material costs.

[0028] To help those skilled in the art better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only a portion of the present invention, not all of the embodiments. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0029] like Figures 1 to 3 As shown, Figure 1 A schematic diagram of the exploded structure of a photovoltaic unit in a water surface photovoltaic system provided in an embodiment of the present application; Figure 2 A schematic diagram of a partial cross-sectional structure of a photovoltaic unit provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of multiple adjacent photovoltaic units in the water surface photovoltaic system provided in an embodiment of the present application.

[0030] In a specific embodiment of the present application, the water surface photovoltaic system may include:

[0031] A plurality of photovoltaic units; each photovoltaic unit includes a photovoltaic module 1, a floating structure 2 for carrying the photovoltaic module 1, and a steel frame structure 3 for connecting the photovoltaic module 1 and the floating structure 2;

[0032] The steel frame structure 3 includes an upper steel bar 31, a middle steel bar 32, and a lower steel bar 33 that are integrally formed and connected in sequence; the upper steel bar 31 and the lower steel bar 33 are respectively located on both sides of the middle steel bar 32; the length direction of the upper steel bar 31, the length direction of the middle steel bar 32, and the length direction of the lower steel bar 33 are all parallel to each other, and the width direction of the upper steel bar 31 and the width direction of the lower steel bar 33 are parallel to each other and perpendicular to the width direction of the middle steel bar 32;

[0033] The opposite sides of each photovoltaic module 1 are connected to the floating structure 2 through a steel frame structure 3 respectively; and the frame 11 of the photovoltaic module 1 is fixedly connected to the upper steel bar 31 of the steel frame structure 3, and the lower steel bar 33 of the steel frame structure 3 is fixedly connected to the floating structure 2.

[0034] Reference Figures 1 to 3The water surface photovoltaic system of this embodiment includes a plurality of photovoltaic units, each photovoltaic unit can be flexibly connected into a row through a chain or other structure, and each row of photovoltaic units can be arranged in parallel with each other.

[0035] On this basis, each photovoltaic unit includes a floating structure 2, each of which supports a photovoltaic module 1 via a steel frame structure 3. The steel frame structure 3 includes an integrally formed upper steel bar 31, a middle steel bar 32, and a lower steel bar 33. The upper steel bar 31 and the lower steel bar 33 are respectively arranged on the upper and lower sides of the middle steel bar 32, so that the cross-section of the steel frame structure 3 formed between the upper steel bar 31, the middle steel bar 32, and the lower steel bar 33 can be roughly I-shaped. Compared with various commonly used triangular frame structures or other support structures composed of multiple component structures spliced ​​together, the steel frame structure 3 in this embodiment is simpler in structure and has low manufacturing cost while ensuring good support strength. During actual installation, the frame 11 of the photovoltaic component 1 can be mounted on the upper steel bar 31 connected to the steel frame structure 3, and the length of the steel frame structure 3 can be less than the length of the frame 11 of one side of the photovoltaic component 1 to which it is connected; and the lower steel bar 33 of the steel frame structure 3 is fitted and fixed on the upper surface of the floating structure 2, and a steel frame structure 3 is provided on each of the opposite sides of the photovoltaic component 1, so that the photovoltaic component 1 is suspended and supported on the floating structure 2 by two steel frame structures 3.

[0036] In an optional embodiment of the present application, the steel frame structure 3 in the water surface photovoltaic system may further include:

[0037] The width of the upper steel bar 31 is equal to half the width of the lower steel bar 33;

[0038] The upper side of the middle steel bar 32 is connected to the side of the upper steel bar 31; the lower side of the middle steel bar 32 is connected to the middle part of the lower steel bar 33, and the middle steel bar 32 is located on the symmetrical plane of the lower steel bar 33;

[0039] The upper steel bar 31 is connected to the frame 11 of the photovoltaic module 1 by at least two screws; the portion of the lower steel bar 33 located on the side of the middle steel bar 32 away from the upper steel bar 31 is fixedly connected to the floating structure 2 by at least two screws.

[0040] like Figure 2As shown, in the steel frame structure 3 in this embodiment, the upper steel bar 31 is set to have a width half of the width of the lower steel bar 33; the width of the upper steel bar 31 can be roughly equivalent to the bottom width of the frame 11 of the photovoltaic module 1; thereby ensuring a good bearing effect on the photovoltaic module 1, it avoids the excessive width of the upper steel bar 31 extending to the outside of the photovoltaic module 1, causing waste of material, and increasing the overall weight of the steel frame structure 3; and the lower steel bar 33 of the steel frame structure 3 is set to a wider width, which can ensure that the bottom of the steel frame structure 3 has a more stable supporting capacity, and screws are set on the lower steel bar 33 at the side of the middle steel bar 32 away from the upper steel bar 31, so as to effectively prevent the steel frame structure 3 from tipping over to the side of the photovoltaic module 1.

[0041] In addition, at least two screws can be used to fix the frame 11 of the photovoltaic module 1 and the upper steel bar 31 of the steel frame structure 3, as well as the floating structure 2 and the lower steel bar 33 of the steel frame structure 3. On the basis of ensuring the stability of the fixed connection structure, the assembly connection between the steel frame structure 3 and the photovoltaic module 1 and the floating structure 2 is simpler and easier to operate.

[0042] Based on the above discussion, in order to ensure that the photovoltaic component 1 can utilize solar energy to the maximum extent, the upper surface of the floating structure 2 in this embodiment can be an inclined surface. After the photovoltaic component 1 is set on the floating structure 2 through the steel frame structure 3, the plane where the photovoltaic component 1 is located is parallel to the upper surface of the floating structure 2 and is set at an angle.

[0043] As described above, the photovoltaic units in this application can be connected in a row along a first direction, and two adjacent rows of photovoltaic modules 1 can be arranged in parallel along a second direction; the first direction and the second direction can be two horizontal directions perpendicular to each other. Figure 3 As shown, in another optional embodiment of the present application, the photovoltaic units in two adjacent rows of photovoltaic units are arranged in staggered layers.

[0044] Reference Figure 3 The photovoltaic modules 1 in each row of photovoltaic units can be arranged in alternating layers of high and low in sequence; thus, without increasing the area occupied by each photovoltaic unit on the water surface, a gap is left between the photovoltaic modules 1 in two adjacent rows of photovoltaic units, so that part of the sunlight can be diffusely reflected by the fluctuating water surface below the photovoltaic modules 1 and then re-incident onto the surface of the photovoltaic modules 1, thereby greatly improving the utilization rate of solar energy by the photovoltaic modules 1.

[0045] In order to achieve staggered height settings between the photovoltaic components 1 in two adjacent rows of photovoltaic units, the same row of photovoltaic units can be further arranged with floating structures 2 of the same height, while the heights of the floating structures 2 in two adjacent rows of photovoltaic units are different; that is, the floating structures 2 in each row of photovoltaic units alternate in height.

[0046] In addition, in order to better absorb the light diffusely reflected by the water surface, the photovoltaic module 1 in this embodiment can adopt a double-glass photovoltaic module, so that when the light diffusely reflected by the water surface is incident on the back of the photovoltaic module 1, it can also be absorbed by the photovoltaic module 1 to generate electricity.

[0047] Further optionally, in an implementation of this embodiment, the water surface photovoltaic system may further include:

[0048] The photovoltaic module 1 has an inclined side surface 111 at least along the frame 11 perpendicular to the second direction;

[0049] Among the photovoltaic units in two adjacent rows, the inclined side surfaces 11 of the frames 11 of the photovoltaic components 1 at the upper layer are inclined downward, and the inclined side surfaces 11 of the frames 11 of the photovoltaic components 1 at the lower layer are inclined upward.

[0050] Reference Figure 3 , the frame 11 on the photovoltaic module 1 that is perpendicular to the second direction is also the frame 11 close to the photovoltaic unit in the adjacent row. Because the inclined side 111 of the frame 11 on the photovoltaic module 1 located on the upper layer of the two adjacent rows of photovoltaic units, which is close to the photovoltaic module 1 on the lower layer, is inclined downward, the light incident on the inclined side 111 of the photovoltaic module 1 can be reflected from the surface of the photovoltaic module 1 located on the lower layer; and the side 111 of the frame 11 on the photovoltaic module 1 located on the lower layer, which is close to the photovoltaic module 1 on the upper layer, is inclined upward. Therefore, when sunlight is incident on the side of the frame 11, the side 111 can reflect the sunlight to the back of the double-sided photovoltaic module 1.

[0051] Of course, in actual applications, each frame 1 of the photovoltaic assembly 1 located at a higher level may have a downwardly inclined side surface 11, and each frame 1 of the photovoltaic assembly located at a lower level may also have an upwardly inclined side surface 11.

[0052] On this basis, in another optional implementation of this embodiment, the width of the floating structure 2 is smaller than the width of the photovoltaic assembly 1 .

[0053] In this embodiment, the width direction of the floating structure 2 refers to the direction parallel to the length direction of the steel frame structure 3; the width of the floating structure 2 is smaller than the width of the photovoltaic module 1, so that there is a larger water surface area under the photovoltaic module 1 that is not blocked by the floating structure 2, so that the water surface can diffusely reflect more solar energy to the surface of the photovoltaic module 1, thereby improving the utilization rate of sunlight by the photovoltaic module 1; in addition, it can also reduce the material cost of the floating structure 2 to a certain extent.

[0054] In addition, in order to further reduce the area covered by the floating structure 2 on the water surface, in another optional embodiment of the present application, the floating structure 2 can also adopt a ring-shaped float with a hollow middle, as long as the floating structure 2 can stably support the photovoltaic module 1 and float on the water surface.

[0055] To sum up, the surface photovoltaic system of the present application includes several photovoltaic units, each photovoltaic unit includes a floating structure, and each floating structure supports a photovoltaic module through two steel frame structures; on this basis, each steel frame structure is integrally formed by an upper steel bar, a middle steel bar and a lower steel bar, and each photovoltaic module is simply fixedly connected to the floating structure through two integrally formed steel frame structures. When the staff installs the photovoltaic module, they only need to fix the steel frame structure and the frame of the photovoltaic module, and fix the steel frame structure and the floating body to complete the installation of a photovoltaic unit. The entire installation structure is simple and easy to implement, and the frame structure for fixedly installing the photovoltaic module is also simpler, which greatly reduces the installation workload and material costs of the staff.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device comprising a series of elements are inherent to the elements. In the absence of further restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. In addition, the above-mentioned technical solutions provided in the embodiments of the present application are not described in detail in accordance with the corresponding technical solutions in the prior art to achieve the same principle, so as to avoid excessive elaboration.

[0057] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A water surface photovoltaic system, characterized in that: Comprising a plurality of photovoltaic units; each photovoltaic unit comprises a photovoltaic assembly, a floating structure for carrying the photovoltaic assembly, and a steel frame structure for connecting the photovoltaic assembly and the floating structure; The steel frame structure includes an upper steel bar, a middle steel bar, and a lower steel bar that are integrally formed and connected in sequence; the upper steel bar and the lower steel bar are respectively located on both sides of the middle steel bar; the length direction of the upper steel bar, the length direction of the middle steel bar, and the length direction of the lower steel bar are all parallel to each other, and the width direction of the upper steel bar and the width direction of the lower steel bar are parallel to each other and perpendicular to the width direction of the middle steel bar; The opposite sides of each photovoltaic module are connected to the floating structure through a steel frame structure respectively; and the frame of the photovoltaic module is fixedly connected to the upper steel bar of the steel frame structure, and the lower steel bar of the steel frame structure is fixedly connected to the floating structure.

2. The water surface photovoltaic system according to claim 1, characterized in that: The photovoltaic units are sequentially connected into multiple rows along a first direction; the photovoltaic units in each row are distributed and connected row by row along a second direction; and the photovoltaic components in two adjacent rows of photovoltaic units are arranged in staggered layers.

3. The water surface photovoltaic system according to claim 2, characterized in that: The heights of the floating structures in the photovoltaic units in the same row are the same, and the heights of the floating structures in two adjacent rows of photovoltaic units are different.

4. The water surface photovoltaic system according to claim 2, characterized in that: The photovoltaic module is a double-glass photovoltaic module.

5. The water surface photovoltaic system according to claim 4, characterized in that: At least the frame of the photovoltaic module perpendicular to the second direction has an inclined side surface; Among the photovoltaic units in two adjacent rows, the inclined side surfaces of the frames of the photovoltaic components located at the upper layer are inclined downward, and the inclined side surfaces of the frames of the photovoltaic components located at the lower layer are inclined upward.

6. The water surface photovoltaic system according to claim 2, characterized in that: The width of the floating structure is smaller than the width of the photovoltaic module.

7. The water surface photovoltaic system according to claim 1, characterized in that: The upper surface of the floating structure is an inclined surface; Each photovoltaic assembly is parallel to the inclined surface of the floating structure to which it is connected.

8. The water surface photovoltaic system according to claim 1, characterized in that: The floating structure is a ring-shaped floating body with a hollow center.

9. The water surface photovoltaic system according to any one of claims 1 to 8, characterized in that: The width of the upper steel bar is equal to half the width of the lower steel bar; The upper side of the middle steel bar is connected to the side of the upper steel bar; the lower side of the middle steel bar is connected to the middle part of the lower steel bar, and the middle steel bar is located on the symmetrical plane of the lower steel bar; The upper steel bar is connected to the frame of the photovoltaic module through at least two screws; the portion of the lower steel bar located on the side of the middle steel bar away from the upper steel bar is fixedly connected to the floating structure through at least two screws.

10. The water surface photovoltaic system according to claim 9, characterized in that: The photovoltaic units are flexibly connected to each other.

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