Photovoltaic power generation device and photovoltaic power generation system

Abstract

The utility model relates to a photovoltaic power generation device and a photovoltaic power generation system. The photovoltaic power generation device comprises a frame, a photovoltaic panel and a plurality of transparent films, the frame is provided with a mounting groove and a clamping groove, the mounting groove and the clamping groove are spaced in the first direction, the photovoltaic panel is arranged in the mounting groove, the first direction is the same as the thickness direction of the photovoltaic panel, and the transparent films are arranged in the mounting groove. And the plurality of transparent films are stacked in the clamping groove. According to the photovoltaic power generation device, the photovoltaic panel is protected through the transparent films, the photovoltaic panel is prevented from being polluted, a plurality of transparent films are arranged to form a spare part of the transparent film for protection, and when the transparent film on the uppermost layer is polluted, the transparent film can be uncovered, so that the transparent film is high in replacement efficiency and good in convenience, and the photovoltaic power generation device is suitable for popularization and application. Therefore, the cleanliness of the transparent film above the photovoltaic panel is ensured, and the normal light energy conversion efficiency of the photovoltaic panel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel cleaning, in particular to a photovoltaic power generation device and a photovoltaic power generation system. Background Art

[0002] Photovoltaic panels are the fundamental power generation units of photovoltaic power plants. Contamination can reduce their efficiency by 10%-20%. Therefore, maintaining panel cleanliness is crucial for increasing their output. Conventional methods for cleaning photovoltaic panels use high amounts of water and are often only effective at removing surface dust, with limited effectiveness against stubborn stains like organic contamination and bird droppings. Utility Model Content

[0003] The present invention aims to at least partially address one of the technical problems in the related art. To this end, embodiments of the present invention provide a photovoltaic power generation device that utilizes a transparent film to protect photovoltaic panels, preventing contamination of the panels. Multiple transparent films are provided to form a spare portion of the protective transparent film, thereby enabling efficient and convenient replacement of the transparent film. This ensures the cleanliness of the transparent film above the photovoltaic panel and maintains the panel's normal light energy conversion efficiency.

[0004] An embodiment of the present invention provides a photovoltaic power generation system.

[0005] The photovoltaic power generation device of an embodiment of the present invention includes a frame, a photovoltaic panel and a transparent film. The frame is provided with an installation groove and a card slot. The installation groove and the card slot are spaced apart in a first direction. The photovoltaic panel is arranged in the installation groove. The first direction is the same as the thickness direction of the photovoltaic panel. The transparent film has multiple pieces, and the multiple pieces of the transparent film are stacked and arranged in the card slot.

[0006] The photovoltaic power generation device of the embodiment of the present invention forms a protective effect on the photovoltaic panel through the transparent film to prevent the photovoltaic panel from being contaminated. By arranging multiple transparent films, a spare part of the transparent film serving as a protection is formed. When the uppermost transparent film is contaminated, it can be peeled off, thereby making the replacement of the transparent film efficient and convenient, thereby ensuring the cleanliness of the transparent film located above the photovoltaic panel and ensuring the normal light energy conversion efficiency of the photovoltaic panel.

[0007] In some embodiments, the frame includes a support frame and an installation frame, the support frame is provided with the installation slot, the edges of the photovoltaic panel are connected to the support frame, the installation frame is distributed on at least two opposite sides of the photovoltaic panel, the installation frame includes a connected connecting plate and a pressure plate, the connecting plate is movably connected to the support frame, and the card slot is defined between the connecting plate, the pressure plate and the support frame.

[0008] In some embodiments, the support frame is provided with a threaded hole, the mounting frame is provided with a communicating hole, and the frame further includes a fastening screw, which passes through the communicating hole and fits into the threaded hole.

[0009] In some embodiments, the support frame and the connecting plate are rotatably connected, and the frame further includes a fixing member connecting the support frame and the installation frame.

[0010] In some embodiments, the frame further includes an elastic sheet, the elastic sheet is located in the card slot, and the elastic sheet abuts against the transparent film.

[0011] In some embodiments, the mounting frame is connected to three sides of the transparent film.

[0012] In some embodiments, a gasket is provided on an edge of the transparent film, and in the first direction, the gasket abuts against the frame or the adjacent transparent film.

[0013] In some embodiments, a through hole is provided on the frame, the through hole is communicated with the card slot, and the gasket extends to the through hole or extends out of the frame through the through hole.

[0014] In some embodiments, the transparent film includes a film layer and a hydrophobic layer. In the thickness direction of the photovoltaic panel, the hydrophobic layer is located on a side of the transparent film facing away from the photovoltaic panel.

[0015] The photovoltaic power generation system of the embodiment of the present utility model includes the photovoltaic power generation device described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a photovoltaic power generation device according to an embodiment of the present utility model (the transparent film is not shown).

[0017] Figure 2 This is a schematic cross-sectional view of a photovoltaic power generation device according to an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 A partial schematic diagram of

[0019] Reference numerals:

[0020] Photovoltaic power generation device 100;

[0021] Frame 1, mounting slot 11, card slot 12, support frame 13, mounting frame 14, connecting plate 141, pressing plate 142, elastic sheet 15, fastening screw 16;

[0022] Photovoltaic panels 2;

[0023] Transparent film 3, gasket 31. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] like Figures 1 to 3 As described above, the photovoltaic power generation device 100 of the embodiment of the present invention comprises a frame 1, a photovoltaic panel 2 and a transparent film 3. The frame 1 is provided with a mounting groove 11 and a card slot 12. The mounting groove 11 and the card slot 12 are in a first direction (eg Figure 1 The photovoltaic panel 2 is arranged in the mounting groove 11, the first direction is the same as the thickness direction of the photovoltaic panel 2, the transparent film 3 has multiple pieces, and the multiple transparent films 3 are stacked in the card slot 12.

[0026] In the use environment of the photovoltaic power generation device 100 of the present embodiment, the first direction is the same as the up-down direction. The transparent film 3 is located on the upper side of the photovoltaic panel 2. The transparent film 3 is transparent and does not affect light exposure to the photovoltaic panel 2, ensuring the normal light energy conversion operation of the photovoltaic panel 2. The transparent film 3 protects the photovoltaic panel 2, preventing dirt and impurities such as floating sediment, oily dust, and bird droppings from falling onto the surface of the photovoltaic panel 2, maintaining the cleanliness of the photovoltaic panel 2. This prevents direct cleaning of the photovoltaic panel 2 and, in turn, prevents scratches during cleaning. When it rains, rainwater washes away the surface of the topmost transparent film 3, flushing away dirt and impurities, reducing the degree of contamination of the topmost transparent film 3 and extending the service life of the topmost transparent film 3. When the degree of contamination of the topmost transparent film 3 reaches a set value, the topmost transparent film 3 is pulled out of the slot 12 or torn off, leaving the clean transparent film 3 on the next layer at the top, completing the replacement of the topmost transparent film 3.

[0027] The used transparent film 3 removed from the card slot 12 can be reused after being cleaned and its cleanliness reaches the set requirements.

[0028] The photovoltaic power generation device 100 of the embodiment of the present invention forms a protective effect on the photovoltaic panel 2 through the transparent film 3 to prevent the photovoltaic panel 2 from being contaminated. By arranging multiple transparent films 3, a spare part of the transparent film 3 serving as a protection is formed. When the top transparent film 3 is contaminated, it can be peeled off, so that the replacement efficiency of the transparent film 3 is high and the convenience is good, thereby ensuring the cleanliness of the transparent film 3 located above the photovoltaic panel 2 and ensuring the normal light energy conversion efficiency of the photovoltaic panel 2.

[0029] In some embodiments, as Figure 2As shown, the frame 1 includes a support frame 13 and a mounting frame 14. The support frame 13 is provided with a mounting groove 11, and the edges of the photovoltaic panel 2 are connected to the support frame 13. The support frame 13 is the main frame 1 that supports the photovoltaic panel 2, and the lower end of the support frame 13 is installed on the ground or on a mounting platform. The photovoltaic panel 2 is provided with a mounting frame 14 on at least two opposite sides. The mounting frame 14 includes a connected connecting plate 141 and a pressing plate 142. The connecting plate 141 is movably connected to the support frame 13, and a card slot 12 is defined between the connecting plate 141, the pressing plate 142 and the support frame 13. The movable connection between the connecting plate 141 and the support frame 13 allows the mounting frame 14 to move relative to the support frame 13, thereby facilitating the installation of multiple transparent films 3 into the card slot 12 and the removal of the transparent films 3 from the card slot 12.

[0030] In some embodiments, the support frame 13 is provided with threaded holes, the mounting frame 14 is provided with connecting holes, and the frame 1 further includes fastening screws 16, which pass through the connecting holes and fit within the threaded holes. When installing the frame 1 and multiple transparent films 3, the transparent films 3 are laid onto the support frame 13, and then the connecting holes on the mounting frame 14 are aligned with the threaded holes on the support frame 13. The fastening screws are passed through the connecting holes and fit within the threaded holes. The mounting frame 14 is secured by tightening the fastening screws, and the multiple transparent films 3 are secured by the squeezing force between the pressure plate 142 and the support frame 13. To remove the transparent films 3, the fastening screws can be loosened to release the pressure of the pressure plate 142 on the transparent films 3. The topmost transparent film 3 can then be peeled off, and the fastening screws 16 can be tightened again.

[0031] In some other embodiments, the support frame 13 and the connecting plate 141 are rotatably connected. Specifically, a hinge seat is provided on the support frame 13, and a hinge shaft is provided on the connecting plate 141. The hinge shaft is installed in the hinge seat and is rotatably connected to the hinge seat. The frame 1 further includes a fixing member (not shown in the figure), which connects the support frame 13 and the installation frame 14. The support frame 13 and the connecting plate 141 are rotatably connected. During the process of installing and removing the transparent film 3, the support frame 13 and the installation frame 14 remain in a connected relationship without the need to be separated. As a result, the process of aligning the installation frame 14 and the support frame 13 is omitted, and the process of separating the installation frame 14 from the support frame 13 and placing them in other areas is also omitted, thereby improving the convenience of operation during the installation and removal of the transparent film 3, and helping to improve the operational efficiency of installing and replacing the transparent film 3.

[0032] Specifically, the fixing member is a buckle, which includes a ring and a hook. The ring is provided on the support frame 13, and the hook is provided on the connecting plate 141. The ring can be buckled with the hook to fix the support frame 13 and the installation frame 14.

[0033] In some embodiments, the frame 1 further includes an elastic sheet 15, which is located in the card slot 12 and abuts the transparent film 3. After multiple transparent films 3 are installed in the card slot 12, the elastic sheet 15 deforms under the squeezing action between the pressure plate 142 and the support frame 13, accumulating elastic force. When one or more transparent films 3 are removed, the deformation of the elastic sheet 15 decreases, and the volume of the elastic sheet 15 increases, thereby filling the space occupied by the removed transparent films 3. This maintains a relatively high squeezing force between the transparent films 3 and the frame 1 pressure plate 142 and the support frame 13, ensuring the installation stability of the remaining transparent films 3 and improving the reliability of the photovoltaic power generation device 100 according to the embodiment of the present invention.

[0034] Specifically, the elastic sheet 15 is mounted on the support frame 13. The elastic sheet 15 is a rubber sheet.

[0035] In some embodiments, three sides of the transparent film 3 are connected to mounting frames 14. However, if one side of the transparent film 3 is not provided with the mounting frame 14, then when it rains, rainwater can not only wash away the uppermost transparent film 3 but also drain smoothly from that side of the transparent film 3, preventing rainwater from accumulating on the transparent film 3. This ensures the service life and light penetration of the transparent film 3, thereby further ensuring the normal light energy conversion efficiency of the photovoltaic panel 2.

[0036] In some embodiments, a gasket 31 is provided on the edge of the transparent film 3. In a first direction, the gasket 31 abuts the frame 1 or an adjacent transparent film 3. Providing the gasket 31 on the edge of the transparent film 3 can increase the strength and hardness of the edge of the transparent film 3, thereby allowing a person to use the edge of the transparent film 3 as a force application point or a starting point, thereby facilitating the installation of multiple transparent films 3 and facilitating the removal of the transparent film 3 from the card slot 12, while ensuring the integrity of the transparent film 3, ensuring the protective and light transmission effects of the transparent film 3, and ensuring the service life of the transparent film 3.

[0037] In some embodiments, the frame 1 is provided with a through-hole that communicates with the slot 12, and the gasket 31 extends into the through-hole or through the through-hole and out of the frame 1. Therefore, the length of the gasket 31 is greater than the length of the edge of the transparent film 3 within which it is located. The end of the gasket 31 not pressed into the slot 12 has a certain degree of freedom and naturally hangs down. Therefore, when removing the topmost transparent film 3, a person can start from the end of the gasket 31 connected to the topmost transparent film 3 and separate it from the underlying transparent film 3. Therefore, extending the gasket 31 into the through-hole or through the through-hole and out of the frame 1 can improve the convenience and efficiency of removing the transparent film 3.

[0038] The transparent film 3 includes a film layer and a hydrophobic layer. In the thickness direction of the photovoltaic panel 2, the hydrophobic layer is located on the side of the transparent film 3 facing away from the photovoltaic panel 2. Figure 2As shown, when the photovoltaic power generation device 100 of the present embodiment is in use, the hydrophobic layer is located on the upper side of the transparent film 3. The hydrophobic layer imparts hydrophobic properties to the transparent film 3, thereby increasing the fluidity of water on the surface of the transparent film 3, reducing adhesion of the transparent film 3, improving the cleanliness of the transparent film 3, and extending the life cycle of the transparent film 3. The frequency of replacement and cleaning of the transparent film 3 is reduced, thereby lowering the maintenance cost of the transparent film 3 and contributing to lowering the cost of use of the photovoltaic power generation device 100.

[0039] The photovoltaic power generation system according to an embodiment of the present invention is described below.

[0040] The photovoltaic power generation system according to the embodiment of the present invention includes a photovoltaic power generation device 100 .

[0041] Therefore, the photovoltaic power generation system of the embodiment of the present invention can ensure the cleanliness of the photovoltaic panel 2 and ensure the normal light energy conversion efficiency of the photovoltaic panel 2.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0044] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0046] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic power generation device (100), characterized in that: include: A frame (1), the frame (1) being provided with a mounting slot (11) and a clamping slot (12), the mounting slot (11) and the clamping slot (12) being spaced apart in a first direction; A photovoltaic panel (2), the photovoltaic panel (2) being arranged in the mounting groove (11), the first direction being the same as the thickness direction of the photovoltaic panel (2); and A transparent film (3), the transparent film (3) comprises multiple sheets, and the multiple sheets of the transparent film (3) are stacked and arranged in the card slot (12).

2. The photovoltaic power generation device (100) according to claim 1, characterized in that: The framework (1) comprises: A support frame (13), the support frame (13) being provided with the mounting groove (11), and the edges of the photovoltaic panel (2) being connected to the support frame (13); and A mounting frame (14) is provided on at least two opposite sides of the photovoltaic panel (2), the mounting frame (14) comprising a connecting plate (141) and a pressing plate (142) connected to each other, the connecting plate (141) being movably connected to the support frame (13), and the card slot (12) being defined between the connecting plate (141), the pressing plate (142) and the support frame (13).

3. The photovoltaic power generation device (100) according to claim 2, characterized in that: The support frame (13) is provided with a threaded hole, the installation frame (14) is provided with a communicating hole, and the frame (1) further comprises a fastening screw, which passes through the communicating hole and fits into the threaded hole.

4. The photovoltaic power generation device (100) according to claim 2, characterized in that: The support frame (13) and the connecting plate (141) are rotatably connected, and the frame (1) further comprises a fixing member, which connects the support frame (13) and the installation frame (14).

5. The photovoltaic power generation device (100) according to claim 2, characterized in that: The frame (1) further comprises an elastic sheet (15), wherein the elastic sheet (15) is located in the card slot (12), and the elastic sheet (15) abuts against the transparent film (3).

6. The photovoltaic power generation device (100) according to claim 2, characterized in that: The three sides of the transparent film (3) are connected to the mounting frame (14).

7. The photovoltaic power generation device (100) according to claim 1, characterized in that: A gasket (31) is provided on the edge of the transparent film (3); in the first direction, the gasket (31) abuts against the frame (1) or the adjacent transparent film (3).

8. The photovoltaic power generation device (100) according to claim 7, characterized in that: The frame (1) is provided with a through hole, the through hole being in communication with the card slot (12), and the gasket (31) extending to the through hole or passing through the through hole and extending out of the frame (1).

9. The photovoltaic power generation device (100) according to claim 1, characterized in that: The transparent film (3) comprises a film layer and a hydrophobic layer. In the thickness direction of the photovoltaic panel (2), the hydrophobic layer is located on the side of the transparent film (3) facing away from the photovoltaic panel (2).

10. A photovoltaic power generation system, characterized in that: The photovoltaic power generation device (100) comprises the photovoltaic power generation device (100) according to any one of claims 1 to 9.

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