Frame of photovoltaic module and photovoltaic module

Abstract

The utility model relates to a frame of a photovoltaic module and the photovoltaic module, the frame of the photovoltaic module comprises a mounting part and a supporting part which are sequentially connected along a first direction, the mounting part is provided with a mounting groove for the side edge of a laminated part to insert, and two groove plates of the mounting groove, which are oppositely arranged at intervals along the first direction, are respectively a first groove plate and a second groove plate; the second groove plate is located between the first groove plate and the supporting part, and the outer side face of the side, deviating from the second groove plate, of the first groove plate is a face A. The mounting structure is characterized in that the depth direction of the mounting groove is defined as a second direction, the second direction intersects with the first direction, and the lengths of the first groove plate and the second groove plate in the second direction are L1 and L2 respectively, the length L1 of the first groove plate and the length L2 of the second groove plate meet the following conditions: 2mm < = L1 < = 5mm, and 1 / 4 < = L1 / L2 < = 1 / 2. And the dust accumulation degree on the front surface of the photovoltaic module is reduced. The covering area of the first groove plate on the laminated piece is small, at the moment, the exposed area of the laminated piece is large, the area in contact with sunlight is large, and the power generation benefit is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a frame for a photovoltaic module and a photovoltaic module. Background Technology

[0002] Currently, photovoltaic power generation is clean and environmentally friendly. To ensure the solar transmittance, it is necessary to keep the surface of the photovoltaic modules clean. Clean photovoltaic modules can generate more electricity.

[0003] Since photovoltaic (PV) modules are used outdoors, they are exposed to wind and sun. Dust can block the surface of the PV modules, reducing the amount of light reaching them and thus affecting their power generation and heat dissipation. After being washed by rain, dust tends to accumulate near one side of the PV module's frame, causing the PV cells in that area to be covered by a thick layer of dust, resulting in a hot spot effect.

[0004] To address the aforementioned technical challenges, regular cleaning, either manually or by machine, is currently the standard practice, but this method is costly. Furthermore, the application of photovoltaic modules in buildings presents challenges in cleaning due to the unpredictable building environment. This leads to localized dust accumulation, affecting the power generation of the photovoltaic modules and even posing safety hazards. Utility Model Content

[0005] Therefore, it is necessary to provide a frame for photovoltaic modules that reduces dust accumulation.

[0006] This application provides a frame for a photovoltaic module, used for mounting on a laminate of the photovoltaic module. The frame includes a mounting part and a support part connected sequentially along a first direction. The mounting part has a mounting groove for inserting the side of the laminate. Two groove plates arranged at relative intervals along the first direction are a first groove plate and a second groove plate, respectively. The second groove plate is located between the first groove plate and the support part. The outer side of the first groove plate facing away from the second groove plate is the A-side of the frame. The feature is that the depth direction of the mounting groove is defined as a second direction, which intersects the first direction. The lengths of the first groove plate and the second groove plate along the second direction are L1 and L2, respectively. The lengths L1 of the first groove plate and L2 of the second groove plate satisfy: 2mm≤L1≤5mm, 1 / 4≤L1 / L2≤1 / 2.

[0007] In one embodiment, at least a portion of surface A is an inclined surface that is inclined away from the support along the second direction.

[0008] In one embodiment, the side of the frame facing away from the mounting groove is the B-side of the frame, and the A-side also includes a plane arranged side by side with the laminate, the plane being located between the B-side and the inclined surface, and connected to the B-side and the inclined surface.

[0009] In one embodiment, the mounting groove is provided with a first reinforcing part and a second reinforcing part, the first reinforcing part being located on the first groove plate and the second reinforcing part being located on the second groove plate.

[0010] In one embodiment, there are at least two second reinforcing parts, which are arranged at intervals along the length of the second groove plate, and an overflow groove is provided between two adjacent second reinforcing parts.

[0011] In one embodiment, both the first reinforcing portion and the second reinforcing portion are reinforcing ribs extending along the length direction of the side of the laminate.

[0012] In one embodiment, a cavity is formed between the support portion and the mounting portion, and a third reinforcing portion is provided on at least one inner wall surface of the cavity.

[0013] In one embodiment, the height of the first groove plate along the first direction is H1, and the height H1 satisfies: 0.5mm≤H1≤1.5mm.

[0014] In one embodiment, the height of the mounting groove along the first direction is H2, and the heights H1 and H2 satisfy: 1 / 10 ≤ H1 / H2 ≤ 1 / 5.

[0015] This application also provides a photovoltaic module, including a laminate and a short frame. The side of the laminate includes a short side extending along the width direction of the laminate. The short frame is the frame described in any of the above embodiments. The mounting groove of the frame extends along the length direction of the short side, and the short side is located in the mounting groove.

[0016] In one embodiment, the side of the laminate further includes a long side extending along the length direction of the laminate, and the photovoltaic module further includes a long frame arranged adjacent to the short frame. The long frame has a slot for inserting the long side. The first direction is defined as the up-down direction. The mounting part is located above the support part. The A-side of the short frame is the top surface of the mounting part. The top surface of the long frame is located above the A-side of the short frame. The top surface of the long frame has an inclined portion that gradually slopes downwards towards the short frame near the short frame.

[0017] Compared to existing technologies, the frame provided in this application, after being washed by rainwater, allows dust to easily accumulate near side A of the frame on the front of the photovoltaic module. Since the length of the first slot plate is 2mm to 5mm, which is shorter than that of a conventional first slot plate, the contact area between the first slot plate and the photovoltaic module is smaller, resulting in a smaller dust accumulation area. Dust near side A is more easily washed away by rainwater, reducing the degree of dust accumulation on the front of the photovoltaic module. The relationship between the lengths of the first and second slot plates shows that, while ensuring reliable installation of the laminate, the degree of dust accumulation on the front of the photovoltaic module is reduced. Furthermore, the first slot plate covers a small area of ​​the laminate, resulting in a larger exposed area of ​​the laminate and a larger area exposed to sunlight, thus improving power generation efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a photovoltaic module according to an embodiment of this application;

[0020] Figure 2 for Figure 1 A magnified view of a section at point I;

[0021] Figure 3 for Figure 1 A sectional view;

[0022] Figure 4 for Figure 3 Enlarged view of a section at point II;

[0023] Figure 5 for Figure 1 A structural diagram of the short and medium-sized borders;

[0024] Figure 6 for Figure 5 A magnified view of a section at point III;

[0025] Figure 7 for Figure 5 The main view.

[0026] Reference numerals: 1. Mounting part; 11. Mounting groove; 111. First groove plate; 1111. Surface A; 1112. Inclined surface; 1113. First reinforcing part; 1114. Plane; 112. Second groove plate; 1121. Second reinforcing part; 1122. Overflow groove; 12. Surface B; 2. Supporting part; 21. Connecting wall; 22. Support plate; 23. Third reinforcing part; 3. Laminated part; 4. Cavity; 5. Short frame; 6. Long frame; 61. Inclined part. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," "side," "top," "bottom," and similar expressions used in this application's specification are merely for describing various exemplary structural parts and elements of this application. However, their use herein is for illustrative purposes only and is determined based on the exemplary orientations shown in the accompanying drawings, and does not represent the only possible implementation. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating orientation are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0029] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, and may be at an angle to the axial direction.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0033] like Figures 1 to 7 As shown, this application discloses a frame for a photovoltaic module, which is used to mount on the laminate 3 of the photovoltaic module.

[0034] like Figures 1 to 7 As shown, the frame includes a mounting portion 1 and a support portion 2 connected sequentially along the first direction z. Wherein, as... Figure 4 , Figure 6 and Figure 7 As shown, the mounting part 1 is provided with a mounting groove 11 for the side of the laminate 3 to be inserted. Two groove plates arranged at relatively intervals along the first direction z in the mounting groove 11 are a first groove plate 111 and a second groove plate 112, respectively. The second groove plate 112 is located between the first groove plate 111 and the support part 2. Figure 4 and Figure 6 As shown, the outer side of the first groove plate 111 facing away from the second groove plate 112 is the A-side 1111 of the frame. Figure 4 and Figure 7 As shown, the depth direction of the mounting groove 11 is defined as the second direction x, which intersects the first direction z. See details... Figure 4 The direction indicated by the middle arrow. The lengths of the first slot plate 111 and the second slot plate 112 along the second direction x are L1 and L2, respectively. The length L1 of the first slot plate 111 and the length L2 of the second slot plate 112 satisfy: 2mm≤L1≤5mm, 1 / 4≤L1 / L2≤1 / 2.

[0035] It is understandable that the laminate 3 is installed in the mounting groove 11 to achieve the installation of the laminate 3 and the frame. After being washed by rainwater, dust on the front of the photovoltaic module tends to accumulate near side A 1111 of the frame. Since the length L1 of the first groove plate 111 is 2mm to 5mm, which is smaller than the length of a conventional first groove plate 111, the contact area between the first groove plate 111 and the photovoltaic module is small, the dust accumulation area is small, and the dust near side A 1111 is more easily washed away by rainwater, i.e., the dust flows out more easily. This reduces the degree of dust accumulation on the front of the photovoltaic module. The relationship between the length L1 of the first groove plate 111 and the length L2 of the second groove plate 112 shows that while ensuring the reliable installation of the laminate 3, the degree of dust accumulation on the front of the photovoltaic module is reduced. In addition, the shading area of ​​the first groove plate 111 on the laminate 3 is small, so the exposed area of ​​the laminate 3 is large, and the area exposed to sunlight is large, which improves the power generation efficiency.

[0036] like Figure 7 As shown, the height of the first groove plate 111 along the first direction z is H1, and the height H1 satisfies: 0.5mm≤H1≤1.5mm. The height of the mounting groove 11 along the first direction z is H2, and the heights H1 and H2 satisfy: 1 / 10≤H1 / H2≤1 / 5.

[0037] Understandably, the height of the conventional first slot plate 111 is 2-4 mm. In this application, the height of the first slot plate 111 is reduced to 0.5 mm-1.5 mm. After being washed by rainwater, dust on the front of the photovoltaic module tends to accumulate near the first slot plate 111 on the frame. Due to the reduced height of the first slot plate 111, the dust at the first slot plate 111 is more easily washed away by rainwater, meaning the dust flows out more easily, reducing the degree of dust accumulation on the front of the photovoltaic module. The above-mentioned design of the height of the first slot plate 111 and the height of the mounting slot 11 ensures the reliability of the installation of the laminate 3 while further reducing the degree of dust accumulation on the front of the photovoltaic module.

[0038] like Figure 4 and Figure 6 As shown, at least a portion of surface A 1111 is an inclined surface 1112, which is inclined along the second direction x in a direction away from the support 2. It can be understood that the presence of the inclined surface 1112 helps to guide rainwater during rain rinsing, making it easier to wash away dust near surface A 1111.

[0039] In one embodiment, surface A 1111 includes only the aforementioned inclined surface 1112. In this embodiment, as... Figure 4 and Figure 6As shown, the side of the frame away from the mounting groove 11 is the B side 12 of the frame. The A side 1111 also includes a plane 1114 arranged side by side with the laminate 3. The plane 1114 is located between the B side 12 and the inclined plane 1112, and the plane 1114 is connected to the B side 12 and the inclined plane 1112.

[0040] like Figure 4 and Figure 6 As shown, the mounting groove 11 is provided with a first reinforcing part 1113 and a second reinforcing part 1121, wherein the first reinforcing part 1113 is located on the first groove plate 111, and the second reinforcing part 1121 is located on the second groove plate 112. It can be understood that the presence of the first reinforcing part 1113 and the second reinforcing part 1121 increases the strength of the mounting part 1, and at the same time increases the contact area between the laminate and the inner wall of the mounting groove, thereby improving the load-bearing capacity. The laminate undergoes less deformation when subjected to snow accumulation, and the snow will slide off surface A more easily.

[0041] At least two second reinforcing portions 1121 are provided, spaced apart along the length of the second groove plate 112, with an overflow groove 1122 between adjacent second reinforcing portions 1121. It is understood that after the laminate 3 is inserted into the mounting groove 11, the presence of the overflow groove 1122 allows sealant to overflow, resulting in a tighter fit between the laminate 3 and the inner wall of the mounting groove 11. Simultaneously, it increases the contact area with the laminate 3, improving the sealing and bonding effect, and preventing moisture ingress. In this embodiment, there are multiple overflow grooves 1122, spaced apart along the second direction x.

[0042] In one embodiment, there are three or more second reinforcing parts 1121. In this embodiment, there are two second reinforcing parts 1121.

[0043] In one embodiment, both the first reinforcing part 1113 and the second reinforcing part 1121 can be protrusions. In this embodiment, such as Figure 6 As shown, both the first reinforcing part 1113 and the second reinforcing part 1121 are reinforcing ribs extending along the length direction of the first side of the laminate 3. The provision of reinforcing ribs helps to improve the strength of the mounting part 1.

[0044] like Figure 4 and Figure 6 As shown, a cavity 4 is formed between the support portion 2 and the mounting portion 1, and a third reinforcing portion 23 is provided on at least one inner wall surface of the cavity 4. The cavity 4 extends along the length direction of the frame, and the third reinforcing portion 23 is a reinforcing strip extending along the length direction of the frame. The presence of the reinforcing strip increases the strength of the support portion 2.

[0045] In this embodiment, such as Figure 4 and Figure 6As shown, the support portion 2 includes a connecting wall 21 and a support plate 22. The connecting wall 21 and the second grooved plate 112 are arranged side-by-side with a gap. The support plate 22 is located between the connecting wall 21 and the second grooved plate 112, with one end connected to the second grooved plate 112 and the other end connected to the connecting wall 21. There are two support plates 22, arranged at intervals along the second direction x. The two support plates 22, the second grooved plate 112, and the connecting wall 21 together form the cavity 4. The connecting wall 21 and the second grooved plate 112 are both provided with the aforementioned reinforcing strips.

[0046] This application also provides a photovoltaic module, such as Figures 1-4 Combination Figure 6 As shown, the photovoltaic module includes a laminate 3, a short frame 5, and a long frame 6. The laminate 3 has a short side extending along its width and a long side extending along its length. The short frame 5 is the aforementioned frame, and its mounting groove 11 extends along the length of the short side, with the short side located within the mounting groove 11.

[0047] like Figures 1-4 Combination Figure 6 As shown, the photovoltaic module also includes a long frame 6 arranged adjacent to the short frame 5. The long frame 6 has a slot for insertion of the long side, and the first direction z is defined as the vertical direction. The mounting part 1 is located above the support part 2, and the A-side 1111 of the short frame 5 is the top surface of the mounting part 1. Figure 1 and Figure 2 As shown, the top surface of the long frame 6 is located above the A surface 1111 of the short frame 5, and the top surface of the long frame 6 has an inclined portion 61 that gradually slopes downward toward the short frame 5 near the short frame 5.

[0048] It is understandable that, due to the reduced height of the first groove plate 111 of the aforementioned frame, there is a height difference between the adjacent positions of the short frame 5 and the long frame 6. The presence of the aforementioned inclined portion 61 increases the smoothness of the adjacent positions of the short frame 5 and the long frame 6. When rainwater washes over the area, the dust accumulated near the position of the long frame 6 on the A side 1111 of the short frame 5 is more easily washed away, further reducing the degree of dust accumulation on the front of the photovoltaic module.

[0049] In this embodiment, such as Figures 1-4 As shown, there are two short frames 5, spaced apart along the length of the long side. The two short sides of the laminate 3 are located in the mounting grooves 11 on the corresponding sides. There are two long frames 6, spaced apart along the length of the short side. The two long sides of the laminate 3 are installed in the slots on the corresponding sides. Both ends of the top surface of the long frame 6 have the aforementioned inclined portions 61.

[0050] Understandably, the smooth transition between the two ends of the long frame 6 and the short frame 5 makes it easier to wash away the dust accumulated on the A side 1111 of the two short frames near the long frame 6 when rainwater washes over them, further reducing the amount of dust accumulation on the front of the photovoltaic module.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A frame for a photovoltaic module, for mounting on a laminate (3) of a photovoltaic module, the frame comprising a mounting portion (1) and a support portion (2) connected sequentially along a first direction, the mounting portion (1) having a mounting groove (11) for inserting a side of the laminate (3), the mounting groove (11) having two groove plates arranged at intervals along the first direction, namely a first groove plate (111) and a second groove plate (112), the second groove plate (112) being located between the first groove plate (111) and the support portion (2), the outer side of the first groove plate (111) facing away from the second groove plate (112) being the A-side (1111) of the frame, characterized in that, The depth direction of the mounting groove (11) is defined as the second direction, which intersects with the first direction. The lengths of the first groove plate (111) and the second groove plate (112) along the second direction are L1 and L2, respectively. The length L1 of the first groove plate (111) and the length L2 of the second groove plate (112) satisfy: 2mm≤L1≤5mm, 1 / 4≤L1 / L2≤1 / 2.

2. The frame according to claim 1, characterized in that, At least a portion of surface A (1111) is an inclined surface (1112), which is inclined along the second direction toward the direction away from the support (2).

3. The frame according to claim 2, characterized in that, The side of the frame away from the mounting groove (11) is the B side (12) of the frame. The A side (1111) also includes a plane (1114) arranged side by side with the laminate (3). The plane (1114) is located between the B side (12) and the inclined plane (1112) and is connected to the B side (12) and the inclined plane (1112).

4. The frame according to claim 1, characterized in that, The mounting groove (11) is provided with a first reinforcing part (1113) and a second reinforcing part (1121), the first reinforcing part (1113) is located on the first groove plate (111), and the second reinforcing part (1121) is located on the second groove plate (112).

5. The frame according to claim 4, characterized in that, There are at least two second reinforcing parts (1121), which are arranged at intervals along the length of the second groove plate (112), and an overflow groove (1122) is provided between two adjacent second reinforcing parts (1121).

6. The frame according to claim 1, characterized in that, A cavity (4) is formed between the support part (2) and the mounting part (1), and a third reinforcing part (23) is provided on at least one inner wall surface of the cavity (4).

7. The frame according to any one of claims 1 to 6, characterized in that, The height of the first groove plate (111) along the first direction is H1, and the height H1 satisfies: 0.5mm≤H1≤1.5mm.

8. The frame according to claim 7, characterized in that, The height of the mounting groove (11) along the first direction is H2, and the heights H1 and H2 satisfy: 1 / 10≤H1 / H2≤1 / 5.

9. A photovoltaic module comprising a laminate (3) and a short frame (5), wherein the side of the laminate (3) includes a short side (31) extending along the width direction of the laminate (3), characterized in that, The short frame (5) is the frame according to any one of claims 1 to 8, and the mounting groove (11) of the frame extends along the length direction of the short side (31), and the short side (31) is located in the mounting groove (11).

10. The photovoltaic module according to claim 9, characterized in that: The side of the laminate (3) also includes a long side (32) extending along the length direction of the laminate (3). The photovoltaic module also includes a long frame (6) arranged adjacent to the short frame (5). The long frame (6) has a slot for the long side (32) to be inserted. The first direction is defined as the up and down direction. The mounting part (1) is located above the support part (2). The A-side (1111) of the short frame (5) is the top surface of the mounting part (1). The top surface of the long frame (6) is located above the A-side (1111) of the short frame (5). The top surface of the long frame (6) has an inclined part (61) that gradually slopes downward toward the short frame (5) near the short frame (5).

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