Photovoltaic structure

Abstract

The utility model relates to the technical field of photovoltaic power generation, and discloses a photovoltaic structure. According to the photovoltaic structure provided by the utility model, the first packaging side plate, the second packaging side plate and the third packaging side plate which are connected are arranged to completely wrap the first side wall, the second side wall, the third side wall and the fourth side wall in the photovoltaic panel, and the fourth packaging side plate is arranged to completely wrap the first side wall, the second side wall, the third side wall and the fourth side wall in the photovoltaic panel. And the other one of the first side wall, the second side wall, the third side wall and the fourth side wall is locally coated to form an open notch which can be used as a gliding channel for natural accumulated snow, dust and other sundries or an operation opening for manual cleaning, so that the sundries naturally slide down under the action of gravity or are directly removed through external tools (such as a broom and a high-pressure water gun). Compared with the problem of impurity accumulation caused by a traditional fully-coated frame, impurities on the surface of the photovoltaic panel can be rapidly removed through the notches, and the phenomena of power generation efficiency reduction, assembly overload and even structure damage caused by impurity coverage are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically to photovoltaic structures. Background Technology

[0002] As global environmental protection requirements become increasingly stringent, power generation methods are gradually shifting from traditional thermal power generation to clean energy power generation. Solar power generation, due to its independence from regional influences and its status as one of the most promising, usable, and renewable energy sources, is being widely adopted.

[0003] Solar panels, as a crucial component of photovoltaic (PV) power generation, utilize the principles of photovoltaics to capture sunlight and convert it into electrical energy. They mainly consist of three parts: the photovoltaic panel, the controller, and the inverter. During fabrication, the photovoltaic panel is installed inside a square frame. The side frames of this square frame typically consist of four frame members.

[0004] However, in practical applications, it has been found that the side frame protrudes from the surface of the photovoltaic panel, and dust, snow and other debris easily accumulate in the square frame area, which is difficult to remove and affects power generation efficiency. Utility Model Content

[0005] In view of this, the present invention provides a photovoltaic structure to solve the problem that square frames are prone to accumulating dust, snow and other debris.

[0006] Specifically, the photovoltaic structure provided by this utility model includes a photovoltaic panel, a first frame unit, and a second frame unit. Along a first direction, one sidewall of the photovoltaic panel is a first sidewall, and the other opposite sidewall is a second sidewall. Along a second direction, one sidewall of the photovoltaic panel is a third sidewall, and the other opposite sidewall is a fourth sidewall. The first frame unit includes a first encapsulation sideplate, a second encapsulation sideplate, and a third encapsulation sideplate connected in sequence, which completely cover three of the first, second, third, and fourth sidewalls. The second frame unit includes a fourth encapsulation sideplate, which partially covers the remaining one of the first, second, third, and fourth sidewalls. The first direction is perpendicular to the second direction.

[0007] Beneficial effects: By setting up connected first, second, and third encapsulation side plates, three of the first, second, third, and fourth side walls of the photovoltaic panel are completely covered. Then, by setting up a fourth encapsulation side plate, the remaining side wall is partially covered, creating an open gap. This gap can serve as a channel for natural snow, dust, and other debris to slide down, or as an opening for manual cleaning. Debris can slide off naturally under gravity or be directly removed using external tools (such as brooms or high-pressure water guns). Compared to the debris accumulation problem caused by traditional fully encapsulated frames, the gap allows for quick removal of debris from the photovoltaic panel surface, effectively preventing decreased power generation efficiency, module overload, and even structural damage caused by debris accumulation.

[0008] In one optional embodiment, the second frame unit further includes a fifth encapsulation side plate, which is disposed on the same side wall as the fourth encapsulation side plate in the photovoltaic panel.

[0009] In one alternative embodiment, the fourth and fifth packaging side panels are spaced apart to form a cleaning notch.

[0010] In one alternative embodiment, at least one of the fourth and fifth encapsulation side panels is mounted at a corner of the photovoltaic panel and connected to the encapsulation side panel in the adjacent first frame unit.

[0011] In one optional embodiment, the first frame unit and the second frame unit enclose a bottom notch; the photovoltaic structure further includes a bottom frame unit, which is installed in the bottom notch, and the bottom frame unit, together with the first frame unit and the second frame unit, encloses a receiving groove for mounting the photovoltaic panel.

[0012] In one optional embodiment, the bottom frame unit includes a plurality of first support rods and a plurality of second support rods. The plurality of first support rods are arranged parallel to a first direction and spaced at constant intervals along a second direction. The plurality of second support rods are arranged parallel to the second direction and spaced at constant intervals along the first direction. The second support rods are coplanar with the first support rods.

[0013] In one optional embodiment, the bottom frame unit further includes a third support rod, which is coplanar with the second support rod and the first support rod, and is intersected with the first direction and the second direction.

[0014] In one alternative embodiment, the third support rod is provided in two sets, and the two sets of the third support rod are arranged crosswise.

[0015] In one alternative embodiment, any group of the third support rods is provided with a plurality of them, and the plurality of third support rods are arranged in parallel and spaced at constant intervals.

[0016] In one alternative embodiment, the photovoltaic structure further includes an encapsulation layer laid on the surface of the base frame unit near the receiving groove. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A front view of the photovoltaic structure provided in an embodiment of this utility model;

[0019] Figure 2 A top view of the photovoltaic panel in the photovoltaic structure provided in this embodiment of the utility model;

[0020] Figure 3 This is a top view of the photovoltaic structure provided in this embodiment of the present invention after the first frame unit and the second frame unit are connected;

[0021] Figure 4 This is a front view of the photovoltaic structure provided in this embodiment of the present invention after the first frame unit and the second frame unit are connected;

[0022] Figure 5 This is a top view of the photovoltaic structure provided in this embodiment of the present invention after the first frame unit, the second frame unit, and the bottom frame unit are connected.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Photovoltaic panel; 101. First sidewall; 102. Second sidewall; 103. Third sidewall; 104. Fourth sidewall;

[0025] 2. First frame unit; 201. First encapsulation side plate; 202. Second encapsulation side plate; 203. Third encapsulation side plate;

[0026] 3. Second frame unit; 301. Fourth package side plate; 302. Fifth package side plate; 303. Cleaning notch; 304. Bottom notch;

[0027] 4. Base frame unit; 401. First support rod; 402. Second support rod; 403. Third support rod;

[0028] 5. Encapsulation layer;

[0029] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0032] Specifically, such as Figures 1 to 5 As shown, the photovoltaic structure provided by this utility model includes a photovoltaic panel 1, a first frame unit 2, and a second frame unit 3.

[0033] Among them, such as Figure 2 As shown, along the first direction X, one side wall of the photovoltaic panel 1 is the first side wall 101 and the other opposite side wall is the second side wall 102. Along the second direction Y, one side wall of the photovoltaic panel 1 is the third side wall 103 and the other opposite side wall is the fourth side wall 104.

[0034] At this time, as Figure 1 , Figures 3 to 5 As shown, the first frame unit 2 includes a first encapsulation side plate 201, a second encapsulation side plate 202, and a third encapsulation side plate 203 connected in sequence. The first encapsulation side plate 201, the second encapsulation side plate 202, and the third encapsulation side plate 203 completely cover three of the first side wall 101, the second side wall 102, the third side wall 103, and the fourth side wall 104. The second frame unit 3 includes a fourth encapsulation side plate 301, which partially covers the remaining one of the first side wall 101, the second side wall 102, the third side wall 103, and the fourth side wall 104. The first direction X is perpendicular to the second direction Y.

[0035] With this configuration, by setting up the first encapsulation side plate 201, the second encapsulation side plate 202, and the third encapsulation side plate 203 connected together, three of the first side wall 101, the second side wall 102, the third side wall 103, and the fourth side wall 104 in the photovoltaic panel 1 are completely covered. Then, by setting up the fourth encapsulation side plate 301, the remaining one of the first side wall 101, the second side wall 102, the third side wall 103, and the fourth side wall 104 is partially covered, forming an open gap. This gap can serve as a sliding channel for natural snow, dust, and other debris, or as an opening for manual cleaning. The debris can slide off naturally under gravity or be directly removed by external tools (such as brooms or high-pressure water guns).

[0036] Compared to the problem of debris accumulation caused by traditional fully enclosed frames, the open gaps allow for quick removal of debris from the surface of the photovoltaic panel, effectively preventing the reduction in power generation efficiency, module overload, or even structural damage caused by debris covering.

[0037] At the same time, it can reduce the amount of materials used, achieve lightweighting, and reduce manufacturing costs.

[0038] It can be explained that the outer wall surface of photovoltaic panel 1 is sealed. For example, it is coated with EVA (ethylene-vinyl acetate copolymer) film, POE (polyolefin) film, or EPE (EVA-POE-EVA) co-extruded film.

[0039] In one embodiment, such as Figure 1 , Figures 3 to 5 As shown, the second frame unit 3 also includes a fifth encapsulation side plate 302, which is installed on the same side wall of the photovoltaic panel 1 as the fourth encapsulation side plate 301.

[0040] With this configuration, by adding a fifth encapsulation side plate 302 and installing the fifth encapsulation side plate 302 on the same side wall as the fourth encapsulation side plate 301, a multi-point support is formed on the side wall. This allows the fourth encapsulation side plate 301 and the fifth encapsulation side plate 302 to share the force of the side wall of the photovoltaic panel 1, preventing the fourth encapsulation side plate 301 from loosening due to excessive local stress and improving the support capacity of the side wall.

[0041] Meanwhile, if either the fourth encapsulation side panel 301 or the fifth encapsulation side panel 302 is damaged, the other side panel can still maintain its basic support function, thus preventing the entire module from failing due to the failure of a single component and improving the fault tolerance of the photovoltaic structure.

[0042] It should be noted that the relative spacing between the fourth package side plate 301 and the fifth package side plate 302 is not specifically limited.

[0043] The fourth package side plate 301 and the fifth package side plate 302 are simply spaced apart to form a cleaning notch 303.

[0044] This configuration, by spacing the fifth encapsulation side plate 302 and the fourth encapsulation side plate 301 apart to form a cleaning gap 303, allows debris to be guided to slide off naturally under gravity or to be cleaned directly by manual tools (such as brooms or high-pressure water guns), avoiding the accumulation area that occurs when using traditional fully enclosed frames.

[0045] Meanwhile, the fifth encapsulation side plate 302 and the fourth encapsulation side plate 301 form multi-point support, which disperses the force exerted by the photovoltaic panel 1 on the single side plate, increases the constraint force of the frame on the photovoltaic panel 1, and avoids the loosening of the single side plate due to overload.

[0046] In one embodiment, at least one of the fourth encapsulation side plate 301 and the fifth encapsulation side plate 302 is installed at the corner of the photovoltaic panel 1 and connected to the encapsulation side plate in the adjacent first frame unit 2.

[0047] With this configuration, by installing at least one of the fourth encapsulation side plate 301 and the fifth encapsulation side plate 302 at the corner of the photovoltaic panel 1 and connecting it with the encapsulation side plate in the adjacent first frame unit 2, the side plate at the corner and the adjacent side frame form a corner reinforcement structure, dispersing the external force to the entire frame and further avoiding the occurrence of local damage.

[0048] Furthermore, the fourth encapsulation side plate 301 and the fifth encapsulation side plate 302 are respectively installed at two corners of the fourth side wall 104 of the photovoltaic panel 1.

[0049] That is, such as Figure 1 , Figures 3 to 5 As shown, the fourth packaging side plate 301 is connected to the first packaging side plate 201, and the fifth packaging side plate 302 is connected to the third packaging side plate 203.

[0050] In one embodiment, such as Figure 1 and Figure 4 As shown, the first border unit 2 and the second border unit 3 enclose and form the bottom notch 304.

[0051] It can be explained that the "bottom" in the bottom gap 304 is as follows: Figure 4 Below any of the side panels shown.

[0052] At this point, the bottom notch 304 is set along a third direction Z, which is perpendicular to the first direction X and the second direction Y. That is, the third direction Z is either the height direction or the thickness direction.

[0053] Preferably, such as Figure 1 and Figure 5As shown, the photovoltaic structure further includes a bottom frame unit 4. The bottom frame unit 4 is installed in the bottom notch 304, and the bottom frame unit 4 and the first frame unit 2 and the second frame unit 3 enclose a receiving groove for installing the photovoltaic panel 1.

[0054] With this setting, by installing the bottom frame unit 4 at the bottom notch 304 formed by enclosing the first frame unit 2 and the second frame unit 3 and enclosing a receiving groove, it is possible to provide support for the bottom and sides of the photovoltaic panel 1, effectively resisting the impact of external forces on the photovoltaic panel 1, such as wind pressure, snow load, etc.

[0055] It can be noted that the structure of the bottom frame unit 4 is not specifically limited.

[0056] As one implementation manner, the bottom frame unit 4 includes a plurality of first support rods 401 and a plurality of second support rods 402. The plurality of first support rods 401 are arranged parallel to the first direction X and are spaced at a constant interval along the second direction Y. The plurality of second support rods 402 are arranged parallel to the second direction Y and are spaced at a constant interval along the first direction X. The second support rods 402 and the first support rods 401 are arranged on the same plane.

[0057] With this setting, by providing a plurality of first support rods 401 arranged parallel to the first direction X and spaced at a constant interval along the second direction Y, and a plurality of second support rods 402 arranged parallel to the second direction Y and spaced at a constant interval along the first direction X, a plurality of "field" - shaped grid - type support structures are formed, which can effectively disperse the weight of the photovoltaic panel 1 and external loads, improve the phenomenon of stress concentration, and prevent the frame from deforming.

[0058] At the same time, it can also compensate for the defect of the reduced strength caused by setting the cleaning notch 303 in the bottom frame, so that when the photovoltaic structure bears external forces such as wind load, snow load and other sundries during transportation and installation, it can ensure the integrity and stability of the photovoltaic structure, and prevent the photovoltaic panel 1 from shifting and being damaged.

[0059] Furthermore, as shown in Figure 1 and Figure 5 the bottom frame unit 4 further includes a third support rod 403. The third support rod 403 is arranged on the same plane as the second support rods 402 and the first support rods 401. The third support rod 403 intersects with the first direction X, and the third support rod 403 intersects with the second direction Y.

[0060] With this setting, by adding the third support rod 403 and combining it with the first support rods 401 and the second support rods 402, a "rice" - shaped cross - grid - type support structure is formed, further dispersing the weight of the photovoltaic panel 1 and external loads, thereby further improving the phenomenon of stress concentration and preventing the frame from deforming.

[0061] Preferably, there are two sets of third support rods 403, and the two sets of third support rods 403 are arranged crosswise.

[0062] In one embodiment, such as Figure 5 As shown, any group of third support rods 403 has multiple rods, and the multiple third support rods 403 are arranged in parallel and spaced at constant intervals.

[0063] By setting the number of third support rods 403 in each group to be multiple, and forming a linear support structure with multiple third support rods 403 in each group, a uniformly distributed contact point is formed, thereby distributing the external force evenly to the entire support area of ​​the bottom frame unit 4, avoiding bending or deformation caused by local overload, and significantly improving the bending strength of the bottom frame unit 4.

[0064] Furthermore, the dimensions of the various third support rods 403 vary and can be determined according to actual needs.

[0065] It should be noted that during installation, the spacing and density between each support rod should be adjusted as needed, and the layout should be optimized for different load scenarios (such as high wind pressure areas or large photovoltaic panels 1) while ensuring strength.

[0066] Similarly, each support rod is prefabricated and quickly assembled on the construction site.

[0067] This configuration allows for the replacement of damaged parts individually without replacing the entire bottom frame unit 4, reducing maintenance costs and downtime.

[0068] Preferably, the first support rod 401, the second support rod 402, and the third support rod 403 are made of carbon fiber.

[0069] In one embodiment, the photovoltaic structure further includes an encapsulation layer 5, which is deposited on the surface of the bottom frame unit 4 near the receiving groove. That is, as shown... Figure 1 As shown, the encapsulation layer 5 is located above the bottom frame unit 4.

[0070] This configuration, by setting an encapsulation layer 5, such as a high-density, low-permeability material like EVA, POE film, or silicone, directly adheres to the surface of the photovoltaic panel 1 and the bottom frame, preventing external moisture and dust from penetrating into the interior through the gap between the bottom frame unit 4 and the photovoltaic panel 1, thus delaying corrosion, battery short circuits, or insulation failure.

[0071] Meanwhile, a hydrophobic coating can be applied to the surface of the encapsulation layer 5 to reduce dust adhesion.

[0072] In addition, the encapsulation layer 5 can also be made of a flexible polymer to provide a certain degree of mechanical buffer protection, absorb vibration and impact during installation, transportation or use, reduce physical damage to the photovoltaic panel 1, and improve the durability of the photovoltaic structure.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A photovoltaic structure, characterized in that, include: A photovoltaic panel (1) has one side wall (101) and another opposite side wall (102) along the first direction (X), and one side wall (1) along the second direction (Y) has one side wall (103) and another opposite side wall (104) along the second direction (Y). The first frame unit (2) includes a first encapsulation side plate (201), a second encapsulation side plate (202), and a third encapsulation side plate (203) connected in sequence. The first encapsulation side plate (201), the second encapsulation side plate (202), and the third encapsulation side plate (203) completely cover the first side wall (101), the second side wall (102), the third side wall (103), and the fourth side wall (104). The second frame unit (3) includes a fourth encapsulation side plate (301), which partially covers one of the first side wall (101), the second side wall (102), the third side wall (103), and the fourth side wall (104). Wherein, the first direction (X) is perpendicular to the second direction (Y).

2. The photovoltaic structure according to claim 1, characterized in that, The second frame unit (3) also includes a fifth encapsulation side plate (302), which is located on the same side wall as the fourth encapsulation side plate (301) in the photovoltaic panel (1).

3. The photovoltaic structure according to claim 2, characterized in that, The fourth packaging side plate (301) and the fifth packaging side plate (302) are spaced apart to form a cleaning notch (303).

4. The photovoltaic structure according to claim 3, characterized in that, At least one of the fourth encapsulation side plate (301) and the fifth encapsulation side plate (302) is installed at the corner of the photovoltaic panel (1) and connected to the encapsulation side plate in the adjacent first frame unit (2).

5. The photovoltaic structure according to any one of claims 1-4, characterized in that, Also includes: The first border unit (2) and the second border unit enclose and form a bottom notch (304); Photovoltaic structures also include: The bottom frame unit (4) is installed in the bottom notch (304), and the bottom frame unit (4), together with the first frame unit (2) and the second frame unit, forms a receiving groove for the photovoltaic panel (1) to be installed.

6. The photovoltaic structure according to claim 5, characterized in that, The bottom frame unit (4) includes a plurality of first support rods (401) and a plurality of second support rods (402). The plurality of first support rods (401) are arranged parallel to the first direction (X) and spaced at constant intervals along the second direction (Y). The plurality of second support rods (402) are arranged parallel to the second direction (Y) and spaced at constant intervals along the first direction (X). The second support rods (402) are coplanar with the first support rods (401).

7. The photovoltaic structure according to claim 6, characterized in that, The bottom frame unit (4) further includes a third support rod (403), which is coplanar with the second support rod (402) and the first support rod (401). The third support rod (403) is intersected with the first direction (X) and the second direction (Y).

8. The photovoltaic structure according to claim 7, characterized in that, The third support rod (403) is provided in two sets, and the two sets of the third support rod (403) are arranged crosswise.

9. The photovoltaic structure according to claim 8, characterized in that, Each group of the third support rods (403) is provided with multiple rods, and the multiple third support rods (403) are arranged in parallel and spaced at constant intervals.

10. The photovoltaic structure according to claim 5, characterized in that, Also includes: Encapsulation layer (5) is laid on the surface of the bottom frame unit (4) near the receiving groove.

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