Assembling structure of water surface photovoltaic floating device and photovoltaic module

Abstract

The utility model discloses an assembly structure of a water surface photovoltaic floating device and a photovoltaic assembly, comprising a lower support provided with a first support shaft extending along a first direction; the floating body is provided with a light filling layer and a reinforcing shell and is rotationally connected with the first supporting shaft; the first direction is perpendicular to the plane where the lower support is located. The bearing plane is arranged on the top surface of the floating body or above the floating body; the reinforcing shell is formed by a curved surface in a surrounding mode. The water surface photovoltaic floating device is reasonable in structure, rotation of the floating body is achieved through the first supporting shaft, stress points are changed when the floating body is impacted by a water body, corrosion or breakdown of the surface of the floating body subjected to concentrated stress is prevented, and the impact force of the water body on the floating body is further dispersed in combination with the reinforcing shell defined by the curved surface.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, in particular to a floating device for water surface photovoltaic and an assembly structure with a photovoltaic module. Background Art

[0002] Building a solar power station on the water surface not only saves land resources, but also the cooling effect of the water body helps to maintain a lower working temperature of the photovoltaic module, thereby improving the power generation efficiency. If a piling installation frame for installing solar components is used, it not only takes a long time and has a high cost, but also because there is thick silt at the bottom of some ponds, reservoirs and lakes, a stable installation frame cannot be built. The above factors all limit the application and promotion of new energy for photovoltaic power generation on the water surface.

[0003] In the prior art, a water surface photovoltaic module includes a floating base for supporting a photovoltaic array. If the floating base is made of metal, it is easy to corrode. If it is in a tubular or square shape, the contact surface impacted by the water body is large, and it is easy to crack or the anti-corrosion coating falls off.

[0004] Therefore, it is necessary to improve the floating device for water surface photovoltaic in the prior art. Summary of the Utility Model

[0005] One of the purposes of the utility model is to overcome the defects existing in the prior art, and provide a floating device for water surface photovoltaic. The rotation of the floating body is realized through the first support shaft, the stress point when impacted by the water body is changed, and the surface corrosion or breakdown of the floating body under concentrated stress is prevented. Combined with the reinforced outer shell surrounded by a curved surface, the impact force of the water body on the floating body is further dispersed.

[0006] To achieve the above technical effects, the technical solution of the utility model is: a floating device for water surface photovoltaic, including:

[0007] A lower bracket, provided with a first support shaft extending in a first direction;

[0008] A floating body, having a lightweight filling layer and a reinforced outer shell, and rotatably connected to the first support shaft;

[0009] The first direction is perpendicular to the plane where the lower bracket is located;

[0010] A supporting plane, arranged on the top surface or above the floating body;

[0011] The reinforced outer shell is surrounded by a curved surface.

[0012] Preferably, an upper bracket connected to it is covered above the lower bracket, the lower bracket and the upper bracket enclose an accommodation cavity for the floating body, and the upper bracket is provided with a second support shaft that is aligned with and opposite to the axis of the first support shaft.

[0013] Preferably, the lower bracket includes a first cross bar and a first longitudinal bar that intersect with each other, and the first support shaft is disposed at the intersection of the first cross bar and the first longitudinal bar.

[0014] Preferably, the upper bracket includes a second cross bar and a second longitudinal bar that intersect with each other, and the second support shaft is disposed at the intersection of the second cross bar and the second longitudinal bar;

[0015] or the second support shaft is disposed on the second cross bar, and the projection of the second longitudinal bar on the top surface of the floating body in a direction opposite to the first direction is located in the gap between adjacent floating bodies.

[0016] Preferably, the material of the lightweight filling layer is one of inert gas, polyurethane foam, epoxy resin foam, polystyrene foam, polyetherimide foam, and polyethersulfone foam.

[0017] Preferably, the material of the reinforcing outer shell is ethylene-vinyl acetate copolymer.

[0018] Preferably, the surface of the reinforcing outer shell is provided with reinforcing ribs, and the reinforcing ribs are arranged in a spiral shape.

[0019] The second object of the present invention is to overcome the defects existing in the prior art, and provide an assembly structure of a floating device for a floating photovoltaic power station and a photovoltaic module, including the floating device for a floating photovoltaic power station as described above and a photovoltaic module, and the photovoltaic module is disposed on the supporting plane.

[0020] The advantages and beneficial effects of the present invention are as follows:

[0021] The floating device for a floating photovoltaic power station has a reasonable structure. The rotation of the floating body is realized through the first support shaft, the stress point when being impacted by the water body is changed, and the surface corrosion or breakdown of the floating body under concentrated stress is prevented. Combined with the reinforcing outer shell surrounded by a curved surface, the impact force of the water body on the floating body is further dispersed. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of the floating device for a floating photovoltaic power station of the present invention;

[0023] Figure 2 is Figure 1 the top view of

[0024] Figure 3 is another structural schematic diagram of the floating device for a floating photovoltaic power station of the present invention.

[0025] In the figure: 1. Lower support; 2. Upper support; 3. Floating body; 11. First support shaft; 22. Second support shaft; 33. Supporting plane; 102. First longitudinal rod; 101. First cross bar; 201. Second cross bar; 202. Second longitudinal rod. Specific embodiments

[0026] The following combines the drawings and embodiments to further describe the specific embodiments of the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0027] "Top surface", "above", "upper", and "lower" are referenced based on the normal use state of the floating device for water surface photovoltaics, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0028] In addition, terms such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0029] As Figures 1 to 3 shown, the floating device for water surface photovoltaics of the present invention includes a lower support 1, a floating body 3, and a supporting plane 33. The lower support 1 is provided with a first support shaft 11 extending in a first direction; the floating body 3 has a lightweight filling layer (not shown) and a reinforced outer shell (not shown), and is rotatably connected to the first support shaft 11; the first direction is perpendicular to the plane where the lower support 1 is located; the supporting plane 33 is arranged on the top surface or above the floating body 3; the reinforced outer shell is surrounded by a curved surface.

[0030] The rotation of the floating body 3 is realized through the first support shaft 11, changing the force application point when impacted by the water body, preventing corrosion or penetration of the surface of the floating body with concentrated force, and further dispersing the impact force of the water body on the floating body in combination with the reinforced outer shell surrounded by a curved surface.

[0031] Among them, further, the material of the lightweight filling layer is one of inert gas, polyurethane foam (PU), epoxy resin foam or polyetherimide (PEI) foam. Among them, inert gases include but are not limited to nitrogen, carbon dioxide, helium, etc.; polyurethane foam has good chemical resistance and physical properties, including relatively high compressive strength and shear strength, and good water resistance and corrosion resistance, which is suitable for water environments such as the ocean. Epoxy resin foam is famous for its excellent mechanical properties and chemical stability, such as high rigidity and dimensional stability, as well as resistance to seawater. PEI foam has excellent chemical resistance and thermal stability, has good resistance to seawater, and at the same time maintains good mechanical strength. The material of the strengthening shell is ethylene-vinyl acetate copolymer (EVA). EVA material has good softness and elasticity, generates a buffering force when water waves hit the surface of the supporting member, reducing the probability of breakage; it also has good aging resistance, can resist the erosion of ultraviolet rays, ozone and general chemicals; it also has low-temperature resistance, and it can still maintain its flexibility and elasticity at low temperatures, which is suitable for applications in cold environments; it is an environmentally friendly material, non-toxic and odorless; it is easy to process and form; it also has biodegradability, reducing the impact on the environment.

[0032] To enhance the stability and firmness of the floating device, an upper bracket 2 connected thereto is provided above the lower bracket 1. The lower bracket 1 and the upper bracket 2 enclose a receiving cavity for the floating body 3. The upper bracket 2 is provided with a second support shaft 22 that is aligned with and opposite to the axis of the first support shaft 11. The setting of the upper bracket 2 enables the support plane 33 to be arranged above the floating body 3, that is, the outer surface of the upper bracket 2 is provided with a support plane 33 for installing the photovoltaic module, and the sunlight reception is more sufficient.

[0033] To optimize the bracket structure and strength, the lower bracket 1 includes a first cross bar 101 and a first longitudinal bar 102 that intersect vertically and horizontally. The first support shaft 11 is arranged at the intersection of the first cross bar 101 and the first longitudinal bar 102. When the first cross bar 101 and the first longitudinal bar 102 are arranged perpendicularly, they usually form a rectangular or square grid. This structure provides good stability because the perpendicularly intersecting bars can resist torsion and lateral forces, and at the same time distribute the load through compression and tension; in the frame structure, the perpendicularly intersecting bars help to directly transfer the vertical load, reduce the lateral displacement, and improve the rigidity and seismic resistance of the overall structure.

[0034] As Figures 1 to 2 shown, in some embodiments, the upper bracket 2 includes a second cross bar 201 and a second longitudinal bar 202 that intersect vertically and horizontally. The second support shaft 22 is arranged at the intersection of the second cross bar 201 and the second longitudinal bar 202. The support plane 33 for supporting the photovoltaic module 4 can be arranged on the top surface of the floating body 3 or above the floating body 3. The floating device with this structure has strong firmness and also improves the installation stability of the photovoltaic module.

[0035] As Figure 3 shown, in some other embodiments, the second support shaft 22 is disposed on the second cross bar 201, and the projection of the second longitudinal bar 202 on the top surface of the floating body 3 along the direction opposite to the first direction is located in the gap between adjacent floating bodies 3. This structure increases the sunlight receiving area of the supporting plane 33 disposed on the top surface of the floating body 3. The second cross bar 201 can be a continuous rod or a segmented rod; wherein, both ends of the segmented rod are respectively connected to adjacent floating bodies, which can further increase the sunlight receiving area of the supporting plane 33 disposed on the top surface of the floating body 3.

[0036] To further improve the strength of the floating body and disperse the impact force, reinforcing ribs (not shown) are provided on the surface of the strengthening shell, and the reinforcing ribs are arranged in a spiral shape.

[0037] The assembly structure of the floating device for a water surface photovoltaic power generation and the photovoltaic module includes the above-mentioned floating device for a water surface photovoltaic power generation and the photovoltaic module 4, and the photovoltaic module 4 is disposed on the supporting plane 33. The photovoltaic module 4 and the supporting plane 33 are detachably connected, which is convenient for maintenance or replacement.

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A floating device for water surface photovoltaics, characterized in that: include: A lower bracket is provided with a first support shaft extending along a first direction; A floating body, having a light filling layer and a reinforced outer shell, and rotatably connected to the first support shaft; The first direction is perpendicular to the plane where the lower bracket is located; A supporting plane, arranged on or above the top surface of the floating body; The reinforced shell is formed by surrounding a curved surface.

2. The floating device for water surface photovoltaic power generation according to claim 1, characterized in that: An upper bracket connected to the lower bracket is provided above the lower bracket, the lower bracket and the upper bracket surround a receiving chamber of the float, and the upper bracket is provided with a second support shaft which is consistent with and opposite to the axis of the first support shaft.

3. The floating device for water surface photovoltaic power generation according to claim 2, characterized in that: The lower bracket includes a first crossbar and a first longitudinal bar that are crisscrossed, and the first support shaft is arranged at the intersection of the first crossbar and the first longitudinal bar.

4. The floating device for water surface photovoltaic power generation according to claim 2 or 3, characterized in that: The upper bracket includes a second crossbar and a second longitudinal bar that are crisscrossed, and the second support shaft is arranged at the intersection of the second crossbar and the second longitudinal bar; Or the second supporting shaft is arranged on the second cross bar, and the projection of the second longitudinal bar on the top surface of the floating body in a direction opposite to the first direction is located in the gap between adjacent floating bodies.

5. The floating device for water surface photovoltaic power generation according to claim 1, characterized in that: The material of the light filling layer is one of inactive gas, polyurethane foam, epoxy resin foam, polystyrene foam, polyetherimide foam and polyethersulfone foam.

6. The floating device for water surface photovoltaic power generation according to claim 1 or 5, characterized in that: The material of the reinforced shell is ethylene-vinyl acetate copolymer.

7. The floating device for water surface photovoltaic power generation according to claim 1, characterized in that: The surface of the reinforced shell is provided with reinforcing ribs, and the reinforcing ribs are arranged in a spiral shape.

8. An assembly structure of a floating device for water surface photovoltaics and a photovoltaic module, characterized in that: It comprises the floating device for water surface photovoltaics and the photovoltaic module as described in any one of claims 1 to 7, and the photovoltaic module is arranged on the supporting plane.

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