Cooling device of photovoltaic module

Abstract

The photovoltaic module comprises a support and a photovoltaic panel, the support comprises an oblique beam, the photovoltaic panel is fixedly connected with the oblique beam, the cooling device comprises a back plate air duct assembly and front reflection assemblies, the front reflection assemblies are arranged on the two sides of the photovoltaic panel in the first direction, and the front reflection assemblies and the photovoltaic panel form a preset angle. The first direction is the length direction of the oblique beam; the backboard air duct assembly is arranged on the side, facing the oblique beam, of the photovoltaic panel and provided with a plurality of air ducts, and the extending direction of the air ducts is parallel to the length direction of the front reflection assembly; the cooling device of the photovoltaic module can reduce the temperature of the photovoltaic panel, and meanwhile, the radiation quantity received by the photovoltaic panel is increased, so that the power generation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation technology, and in particular to a cooling device for a photovoltaic module. Background Art

[0002] With the advancement of photovoltaic power generation technology, photovoltaic power generation systems have also experienced rapid growth. However, the construction of photovoltaic power generation systems requires the sacrifice of significant land resources, which significantly limits the future and market of photovoltaic power generation systems. Therefore, constructing photovoltaic power plants on limited land resources and maximizing power generation are crucial to the development of photovoltaic power generation systems. The temperature of photovoltaic modules directly affects the efficiency of photovoltaic power generation systems. Reducing the temperature of photovoltaic modules and thereby increasing power generation is crucial to improving the efficiency of power generation systems. Utility Model Content

[0003] An embodiment of the present application provides a cooling device for a photovoltaic module, which can reduce the temperature of a photovoltaic panel and increase the amount of radiation received by the photovoltaic panel, thereby improving power generation efficiency.

[0004] According to the cooling device of the photovoltaic component provided in the embodiment of the present application, the photovoltaic component includes a bracket and a photovoltaic panel, the bracket includes an inclined beam, the photovoltaic panel is fixedly connected to the inclined beam, the cooling device includes a backplane duct assembly and a front reflective assembly, the front reflective assembly is arranged on both sides of the photovoltaic panel along a first direction, the front reflective assembly is at a preset angle to the photovoltaic panel, and the first direction is the length direction of the inclined beam; the backplane duct assembly is arranged on the side of the photovoltaic panel facing the inclined beam, the backplane duct assembly has multiple air ducts, and the extension direction of the air ducts is parallel to the length direction of the front reflective assembly.

[0005] In addition, the photovoltaic module cooling device provided in the embodiments of the present application may also have the following additional technical features:

[0006] In an optional solution, the front reflective assembly includes reflective fins and support members, the support members are arranged on both sides of the inclined beam along the length direction, and the reflective fins are arranged on the support members; the reflective fins are arranged toward the side away from the inclined beam and inclined to the photovoltaic panel.

[0007] In an optional solution, the support member includes a horizontal support rod, a vertical support rod and an oblique support rod, the area enclosed by the horizontal support rod, the vertical support rod and the oblique support rod is a triangle, the horizontal support rod is fixedly connected to the oblique beam, and the reflective fin is arranged on the oblique support rod.

[0008] In an alternative solution, the horizontal strut and the inclined beam are fixedly connected by bolts, the vertical strut is fixedly connected to the horizontal strut and the diagonal strut by bolts, and both ends of the diagonal strut are respectively fixedly connected to the horizontal strut and the vertical strut by bolts.

[0009] In an alternative solution, the backplane air duct assembly includes a plurality of aluminum plates, and the plurality of aluminum plates are arranged at intervals along the first direction, and the gaps between adjacent two aluminum plates form the air duct.

[0010] In an alternative solution, the bracket further includes purlins, and at least part of the aluminum plates are fixedly connected to the purlins; the aluminum plates are provided with avoidance grooves at positions corresponding to the inclined beams.

[0011] The beneficial effects of the embodiments of the present application are as follows:

[0012] The cooling device of the photovoltaic module can form smooth air ducts on both sides of the photovoltaic panel through the backplane air duct assembly and the front reflection assembly, thereby promoting the heat dissipation of the photovoltaic panel, reducing the temperature of the photovoltaic panel and thus increasing the power generation; at the same time, the front reflection assembly can also increase the radiation amount on the surface of the photovoltaic panel, further improving the power generation.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a cooling device for a photovoltaic module provided by the present application in one embodiment;

[0015] Figure 2 is a schematic structural diagram of a front reflection assembly provided by the present application;

[0016] Figure 3 is a schematic connection structure diagram of a reflection fin and a support provided by the present application;

[0017] Figure 4 is a schematic structural diagram of a backplane air duct assembly provided by the application;

[0018] Figure 5 is a schematic fixed connection diagram of a backplane air duct assembly provided by the application.

[0019] Reference numerals: bracket 1, inclined beam 11, purlin 12, photovoltaic panel 2, backplane air duct assembly 3, air duct 31, aluminum plate 32, front reflection assembly 4, reflection fin 41, horizontal strut 42, vertical strut 43, diagonal strut 44.

[0020] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Detailed Description of the Invention

[0021] To better understand the technical solution of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0023] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should be understood that the term " / and" used herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0025] It should be noted that the orientation terms such as "up", "down", "left", and "right" described in the embodiments of the present application are described from the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element.

[0026] As Figures 1-5 shown, the embodiments of the present application provide a cooling device for a photovoltaic module. Among them, the photovoltaic module includes a bracket 1 and a photovoltaic panel 2. The bracket 1 includes an inclined beam 11. The photovoltaic panel 2 is fixedly connected to the inclined beam 11. The cooling device includes a backplane air duct assembly 3 and a front reflection assembly 4. The front reflection assembly 4 is disposed on both sides of the photovoltaic panel 2 along a first direction. The front reflection assembly 4 forms a preset angle with the photovoltaic panel 2. The first direction is the length direction of the inclined beam 11. The backplane air duct assembly 3 is disposed on the side of the photovoltaic panel 2 facing the inclined beam 11. The backplane air duct assembly 3 has a plurality of air ducts 31, and the extending direction of the air ducts 31 is parallel to the length direction of the front reflection assembly 4.

[0027] The cooling device of the photovoltaic module in this embodiment can form unobstructed air ducts 31 on both sides of the photovoltaic panel 2 through the back panel air duct assembly 3 and the front reflective assembly 4, thereby promoting heat dissipation of the photovoltaic panel 2, reducing the temperature of the photovoltaic panel 2 and thus increasing power generation; at the same time, the front reflective assembly 4 can also increase the radiation amount on the surface of the photovoltaic panel 2, further improving power generation.

[0028] like Figures 1-3 As shown, in a specific embodiment, the front reflective assembly 4 includes reflective fins 41 and supports. The supports are arranged on both sides of the inclined beam 11 along the length direction, and the reflective fins 41 are arranged on the supports. The reflective fins 41 are arranged on the side facing away from the inclined beam 11 and are inclined relative to the photovoltaic panel 2. Specifically, the front reflective assembly 4 consists of two reflective fins 41 and supports. The reflective fins 41 can be arranged on both sides of the photovoltaic panel 2 through the supports, thereby forming a smooth air duct 31 with the photovoltaic panel 2. In addition, sunlight can be reflected onto the photovoltaic panel 2 after being irradiated by the reflective fins 41, thereby further increasing the power generation.

[0029] like Figures 1-3 As shown, in a specific embodiment, the support member includes a horizontal support rod 42, a vertical support rod 43 and a diagonal support rod 44. The area enclosed by the horizontal support rod 42, the vertical support rod 43 and the diagonal support rod 44 is a triangle. The horizontal support rod 42 is fixedly connected to the diagonal beam 11, and the reflective fin 41 is arranged on the diagonal support rod 44. Specifically, the horizontal support rod 42 and the diagonal beam 11 are fixedly connected by bolts, the vertical support rod 43 is fixedly connected to the horizontal support rod 42 and the diagonal support rod 44 by bolts, and the two ends of the diagonal support rod 44 are fixedly connected to the horizontal support rod 42 and the vertical support rod 43 by bolts respectively. The connection of the entire structure is all bolted, without the need for welding, thereby effectively eliminating the risk of causing a fire and facilitating later maintenance and replacement. The triangular stabilization system composed of the horizontal support rod 42, the vertical support rod 43 and the diagonal support rod 44 is fixed to the reflective fin 41 by bolts, thereby forming a stable air duct 31 on the front of the photovoltaic panel 2.

[0030] like Figure 1 and Figures 4-5 As shown, in one specific embodiment, the back panel air duct assembly 3 includes a plurality of aluminum plates 32 spaced apart along a first direction, with the gaps between adjacent aluminum plates 32 forming an air duct 31. Furthermore, the bracket 1 includes purlins 12, with at least some of the aluminum plates 32 fixedly connected to the purlins 12; the aluminum plates 32 are provided with avoidance grooves at positions corresponding to the diagonal beams 11.

[0031] Specifically, the gaps between two adjacent aluminum plates 32 can be the same or different. Generally speaking, however, the adjacent aluminum plates 32 are arranged at equal intervals. The gaps between the aluminum plates 32 can promote the heat dissipation of the photovoltaic panel 2, reduce the temperature of the photovoltaic panel 2, and thus increase the power generation. In addition, when installing the aluminum plate 32 and the purlin 12, the aluminum plate 32 can be lapped on the purlin 12, and the aluminum plate 32 is fixed by the extrusion of the frame of the photovoltaic module and the purlin 12. That is, the connection between the aluminum plate 32 and the purlin 12 does not need to be through bolts or welding, and it can rely on the extrusion of the module frame and the purlin 12. This connection method also reduces the installation cost to a certain extent.

[0032] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cooling device for a photovoltaic module, the photovoltaic module comprising a bracket and a photovoltaic panel, characterized in that, The bracket includes an oblique beam, and the photovoltaic panel is fixedly connected to the oblique beam. The cooling device includes a backplane duct assembly and a front reflective assembly. The front reflective assembly is arranged on both sides of the photovoltaic panel along a first direction, and the front reflective assembly is at a preset angle to the photovoltaic panel. The first direction is the length direction of the oblique beam; the backplane duct assembly is arranged on the side of the photovoltaic panel facing the oblique beam, and the backplane duct assembly has multiple air ducts, and the extension direction of the air ducts is parallel to the length direction of the front reflective assembly.

2. The cooling device for a photovoltaic module according to claim 1, characterized in that, The front reflective assembly includes reflective fins and supports, the supports are arranged on both sides of the inclined beam along the length direction, and the reflective fins are arranged on the supports; the reflective fins are arranged toward the side away from the inclined beam and inclined to the photovoltaic panel.

3. The cooling device for a photovoltaic module according to claim 2, characterized in that, The support member includes a horizontal support rod, a vertical support rod and an oblique support rod. The area enclosed by the horizontal support rod, the vertical support rod and the oblique support rod is a triangle. The horizontal support rod is fixedly connected to the oblique beam, and the reflective fin is arranged on the oblique support rod.

4. The cooling device for a photovoltaic module according to claim 3, characterized in that, The horizontal brace and the diagonal beam are fixedly connected by bolts, the vertical brace is fixedly connected to the horizontal brace and the diagonal brace by bolts, and both ends of the diagonal brace are fixedly connected to the horizontal brace and the vertical brace by bolts respectively.

5. The temperature reduction device for a photovoltaic module according to any one of claims 1-4, characterized in that, The back plate air duct assembly includes a plurality of aluminum plates, which are arranged at intervals along the first direction, and a gap between two adjacent aluminum plates forms the air duct.

6. The cooling device for a photovoltaic module according to claim 5, characterized in that, The bracket further includes a purlin, and at least a portion of the aluminum plate is fixedly connected to the purlin; the aluminum plate is provided with an avoidance groove at a position corresponding to the oblique beam.

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