Photovoltaic module

Abstract

This application relates to a photovoltaic module, which includes a laminate and a photovoltaic frame. The photovoltaic frame includes at least one first frame and at least one second frame, which enclose a receiving space for accommodating the laminate. The two ends of the first frame are adjacent to the second frame along a first direction. A slot communicating with the receiving space is provided at the connection position between the first frame and the second frame. The opening width of the slot near the receiving space is greater than the opening width of the slot away from the receiving space. At least a portion of the slot extends through the first frame along a second direction; and / or, at least a portion of the slot extends through the second frame along the first direction. The photovoltaic module provided by this application allows water and dust accumulated on the light-receiving surface of the laminate to be guided to the slot by the opening area near the receiving space, and quickly discharged through the opening area away from the receiving space, thus accelerating the drainage rate and effect of water and dust accumulated on the light-receiving surface of the laminate.

Description

Technical Field

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

[0002] With the development of photovoltaic technology, photovoltaic modules are being used more and more widely. A photovoltaic module mainly consists of a photovoltaic laminate and a photovoltaic frame for mounting the laminate. Among them, the photovoltaic frame is an important component of the photovoltaic module, playing a role in fixing and sealing the laminate, facilitating the transportation and installation of the photovoltaic module, and the structure of the photovoltaic frame has a significant impact on the installation and service life of the photovoltaic module.

[0003] Currently, conventional photovoltaic frames (01) are C-shaped components with three sides fixed laminates, such as... Figure 1 As shown, photovoltaic frames generally have an A-side (011) structure. When the laminate is installed on this type of photovoltaic frame, the A-side will be higher than the light-receiving surface of the laminate. Due to the obstruction of the A-side, the laminate will accumulate a lot of dust during long-term use. After natural washing by rainwater, dew, etc., the dust will be washed to the area of ​​the laminate near the A-side, causing water accumulation, dust accumulation and other adverse phenomena on the light-receiving surface of the laminate. Summary of the Invention

[0004] Therefore, it is necessary to provide a photovoltaic module to address the problem that when laminates are installed on photovoltaic frames, the light-receiving surface of the laminates is prone to water and dust accumulation.

[0005] A photovoltaic module, comprising:

[0006] Laminated components;

[0007] Photovoltaic frames, including:

[0008] At least one first frame extending along a first direction and at least one second frame extending along a second direction, the first frame and the second frame enclosing a receiving space for accommodating the laminate, the two ends of the first frame opposite to each other along the first direction are adjacent to the second frame, and a slot communicating with the receiving space is provided at the connection position of the first frame and the second frame, the opening width of the slot near the receiving space is greater than the opening width of the slot away from the receiving space;

[0009] Wherein, at least a portion of the slot extends through the first frame along the second direction; and / or, at least a portion of the slot extends through the second frame along the first direction.

[0010] In one embodiment, the slot includes a first region and a second region connected to the first region, the first region being close to the receiving space and the second region being away from the receiving space;

[0011] The first region has a first sidewall on each of its opposite sides, and the second region has a second sidewall on each of its opposite sides. The slope of the first sidewall is k1, and the slope of the second sidewall is k2. .

[0012] In one embodiment, the slot further includes a plurality of third regions located between the first region and the second region, the third regions having third sidewalls on opposite sides;

[0013] Wherein, the slope of the third sidewall near the first region is k. 31 The slope of the third sidewall, which is far from the first region, is k. 32 ,and .

[0014] In one embodiment, an arc-shaped transition portion is provided at the connection between the first sidewall and the third sidewall, at the connection between two adjacent third sidewalls, and at the connection between the third sidewall and the second sidewall.

[0015] In one embodiment, the first sidewall and / or the second sidewall are arcuate surfaces.

[0016] In one embodiment, the length of the first border in the first direction is L1, the length of the second border in the second direction is L2, and L1 < L2.

[0017] In one embodiment, the opening width at the location where the slot communicates with the accommodating space is W, and .

[0018] In one embodiment, the opening width at the location where the slot communicates with the accommodating space is W, and .

[0019] In one embodiment, the opening length of the slot is C1 in the first direction, and the opening length of the slot is C2 in the second direction. .

[0020] In one embodiment, the opening length of the slot is C1 in the first direction, and the opening length of the slot is C2 in the second direction. .

[0021] In one embodiment, corner brackets are provided at the connection positions of two adjacent first and second borders;

[0022] The first frame has a first receiving cavity along the first direction, and the second frame has a second receiving cavity along the second direction. The corner bracket includes a bent portion and a first connecting portion and a second connecting portion disposed on opposite sides of the bent portion. The first connecting portion is received in the first receiving cavity, and the second connecting portion is received in the second receiving cavity.

[0023] In one embodiment, the first connecting portion and the second connecting portion are either plastic parts or metal parts, and the bending portion is a plastic part.

[0024] In one embodiment, both the first frame and the second frame include a pressing portion, which is pressed onto the light-receiving surface of the laminate.

[0025] On the third direction of the photovoltaic frame, the top of the corner bracket is lower than the top of the crimping part, the corner bracket and the crimping part form the groove, and the height difference between the top of the corner bracket and the top of the crimping part is H, 3mm≤H≤7mm.

[0026] In one embodiment, the pressing portion has an adhesive layer that can be adhered to the laminate, the thickness of the adhesive layer being D, and 0.1mm≤D≤0.5mm.

[0027] In one embodiment, the bent portion has a bearing end and an extended end extending toward the pressing portion, the laminate is supported on the bearing end, the extended end covers the sidewall of the laminate, and in the third direction, the top of the extended end is lower than or flush with the light-receiving surface of the laminate.

[0028] In one embodiment, the first frame and the second frame each have an extension on one of their adjacent ends, the extension extending toward the first direction or the second direction, the extension being adjacent to the protruding end and flush with the top of the protruding end.

[0029] In one embodiment, the first frame and the second frame each have an adjacent segment on one of their adjacent ends, the adjacent segment extending toward a third direction and adjacent to the protruding end.

[0030] In one embodiment, in a direction parallel to the light-receiving surface of the laminate, the distance between the edge of the light-receiving surface of the laminate and the first frame or the second frame is S1, and the distance between the edge of the backlighting surface of the laminate and the first frame or the second frame is S2.

[0031] Where 2mm≤S1≤5mm, 0.1mm≤S2≤2mm.

[0032] The aforementioned photovoltaic module supports a laminated component via a first frame and a second frame, with the laminated component located within an accommodating space. A slot is provided at the connection point between the first and second frames. The opening width of the slot near the accommodating space is greater than the opening width away from the accommodating space, and the slot exhibits a gradual change in width. The opening area near the accommodating space guides accumulated water and dust from the light-receiving surface of the laminated component to the slot, and allows for rapid drainage through the opening area away from the accommodating space. This accelerates the drainage rate and effectiveness of accumulated water and dust from the light-receiving surface of the laminated component, preventing adverse phenomena such as water and dust accumulation on the light-receiving surface of the laminated component, improving the power generation efficiency of the photovoltaic module, and effectively preventing hot spot phenomena in the photovoltaic module. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a photovoltaic frame provided in some existing technologies.

[0034] Figure 2 This is a schematic diagram of the structure of the photovoltaic frame provided in some embodiments of this application.

[0035] Figure 3 This is a schematic diagram of the structure of a photovoltaic module provided in some embodiments of this application.

[0036] Figure 4 This is a schematic diagram of the slot structure provided in some embodiments of this application.

[0037] Figure 5 This is a schematic diagram of the slot structure provided in another embodiment of this application.

[0038] Figure 6 This is a top view of the photovoltaic frame provided in some embodiments of this application.

[0039] Figure 7 This is a schematic diagram of the corner bracket provided in some embodiments of this application.

[0040] Figure 8 This is a front view of the photovoltaic frame provided in some embodiments of this application.

[0041] Figure 9 This is a schematic diagram of the structure of a photovoltaic frame provided in another embodiment of this application.

[0042] Figure 10 This is a schematic diagram of the structure of a photovoltaic frame provided in another embodiment of this application.

[0043] Figure label:

[0044] 100. Photovoltaic frame;

[0045] 110. First frame; 120. Second frame; 130. Accommodating space; 140. Groove; 141. First region; 1411. First sidewall; 142. Second region; 1421. Second sidewall; 143. Third region; 1431. Third sidewall; 150. Corner bracket; 151. Bending portion; 1511. Bearing end; 1512. Extended end; 152. First connecting portion; 153. Second connecting portion; 160. Press-fit portion; 170. Extension section; 180. Adjacent section;

[0046] 200. Photovoltaic modules;

[0047] 210. Laminated component; 211. Light-receiving surface; 212. Backlight-receiving surface. Detailed Implementation

[0048] 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.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] The technical solutions provided by the embodiments of this application are described below with reference to the accompanying drawings.

[0055] See Figure 1 As shown, a conventional photovoltaic frame (01) is a C-shaped component with laminates fixed on three sides, and photovoltaic frames generally have an A-side (011) structure. When the laminates are installed on this type of photovoltaic frame, the A-side will be higher than the light-receiving surface of the laminates. Due to the obstruction of the A-side, the laminates will accumulate a lot of dust during long-term use. After natural washing by rainwater, dew, etc., the dust will be washed to the area of ​​the laminates near the A-side, causing water accumulation, dust accumulation and other adverse phenomena on the light-receiving surface of the laminates.

[0056] For the above issues, please refer to Figures 2-4As shown, this application provides a photovoltaic module 200, which includes a photovoltaic frame 100 and a laminate 210. The laminate 210 is installed on the photovoltaic frame 100. For example, the laminate 210 is fixed to the photovoltaic frame 100 by means of resting, stacking, etc., to form the photovoltaic module 200.

[0057] The photovoltaic frame 100 includes at least one first frame 110 and at least one second frame 120. The first frame 110 is along a first direction ( Figure 1 As shown in the X direction, the second border 120 extends along the length direction of the first border 110, such as the first direction being the length direction of the first border 110. Figure 1 Extending in the Y direction (as shown), such as the second direction being the length direction of the second frame 120, the first frame 110 is adjacent to the second frame 120 at opposite ends along the first direction, and the second frame 120 is adjacent to the first frame 110 at opposite ends along the second direction. Exemplarily, as in this embodiment, there are two first frames 110 and two second frames 120, and the two first frames 110 and two second frames 120 are assembled to form a rectangular or near-rectangular structure. The first frame 110 and the second frame 120 enclose a receiving space 130, which is used to receive the laminate 210. When the laminate 210 is received within the receiving space 130, the sides of the laminate 210 are fixed to the first frame 110 or the second frame 120 by means of resting, overlapping, etc. A slot 140 is provided at the connection position between the first frame 110 and the second frame 120. If the photovoltaic frame 100 is rectangular or quasi-rectangular, a slot 140 is provided at each of the four diagonal positions of the photovoltaic frame 100. The slot 140 connects to the accommodating space 130. The opening width of the slot 140 near the accommodating space 130 is greater than the opening width of the slot 140 away from the accommodating space 130. Figure 4 As shown, W1 > W2. At least a portion of the slot 140 penetrates the first frame 110 in the second direction; and / or, at least a portion of the slot 140 penetrates the second frame 120 in the first direction. For example, the entire structure of the slot 140 may be located on the first frame 110, and the slot 140 penetrates the first frame 110 only in the second direction; or, the entire structure of the slot 140 may be located on the second frame 120, and the slot 140 penetrates the second frame 120 only in the first direction; or, a portion of the structure of the slot 140 may be located on the first frame 110, and this portion of the slot 140 penetrates the first frame 110 in the second direction, while another portion of the structure of the slot 140 may be located on the second frame 120, and this portion of the slot 140 penetrates the second frame 120 in the first direction.

[0058] Thus, the opening area of ​​the slot 140 near the accommodating space 130 is larger than the opening width of the slot 140 away from the accommodating space 130, and the slot 140 presents a gradual trend. The opening area of ​​the slot 140 near the accommodating space 130 can guide the water and dust accumulated on the light-receiving surface 211 of the laminate 210 to the slot 140, and quickly discharge them through the opening area of ​​the slot 140 away from the accommodating space 130. This accelerates the discharge rate and effect of the water and dust accumulated on the light-receiving surface 211 of the laminate 210, avoids adverse phenomena such as water and dust accumulation on the light-receiving surface 211 of the laminate 210, improves the power generation efficiency of the photovoltaic module 200, and effectively avoids the occurrence of hot spots in the photovoltaic module 200.

[0059] In one embodiment, see Figures 2-4 As shown, the slot 140 includes a first region 141 and a second region 142, with the second region 142 connected to the first region 141. Preferably, the slot 140 is an integral structure, with the first region 141 seamlessly connected to the second region 142, preventing the accumulation of water and dust on the light-receiving surface 211 of the laminate 210 from causing a sudden change in the rate of water accumulation at the connection point between the first region 141 and the second region 142. The first region 141 is closer to the accommodating space 130, and the second region 142 is farther from the accommodating space 130. The first region 141 has a first sidewall 1411 on each opposite side, and the second region 142 has a second sidewall 1421 on each opposite side. The slope of the first sidewall 1411 is k1, and the slope of the second sidewall 1421 is k2. .

[0060] Thus, the relationship between the slope k1 of the first sidewall 1411 and the slope k2 of the second sidewall 1421 is set as follows: This makes the first sidewall 1411 forming the first region 141 relatively gentle, and the second sidewall 1421 forming the second region 142 relatively steep. The first sidewall 1411 can guide the water and dust accumulated on the light-receiving surface 211 of the laminate 210 to accumulate in the first region 141, and the second sidewall 1421 can quickly drain the water and dust accumulated in the first region 141. Moreover, the groove 140 has a two-stage gradient structure, so the drainage rate of the water and dust accumulated on the light-receiving surface 211 of the laminate 200 will not change abruptly, which is conducive to the effective drainage of the water and dust accumulated on the light-receiving surface 211 of the laminate 210.

[0061] Further reading Figure 5 As shown, the trough 140 also includes multiple third regions 143 located between the first region 141 and the second region 142. For example, along the discharge direction of accumulated water and ash, the trough 140 sequentially includes the first region 141, multiple third regions 143, and the second region 142. The third regions 143 have third sidewalls 1431 on opposite sides. The slope of the third sidewall 1431 closest to the first region 141 is k.31 The slope of the third sidewall 1431, which is far from the first region 141, is k. 32 ,and .

[0062] Thus, the slope k1 of the first sidewall 1411 and the slope k of multiple third sidewalls 1431 are set. 31 k 32 The relationship between the slope k2 of the second sidewall 1421 and the slope k2 is as follows: The slot 140 is configured as a four-segment, five-segment, or other multi-segment structure. Along the discharge direction of accumulated water and dust, the slot 140 has a gradual change trend from gentle to steep. The accumulated water and dust collected on the light-receiving surface 211 of the laminate 210 will not be affected by sudden changes in rate during the discharge process, and it is not easy for eddies to occur between two adjacent areas, which is conducive to the discharge of accumulated water and dust collected on the light-receiving surface 211 of the laminate 210.

[0063] It should be noted that in other feasible embodiments, the third region 143 may be a single entity, in which case the slot 140 is configured as a three-segment structure. If the slope of the third sidewall 1431 of the third region 143 is defined as k3, then... .

[0064] In one embodiment, see Figures 2-5 As shown, arc-shaped transition portions are provided at the connection points of the first sidewall 1411 and the third sidewall 1431, the connection points of two adjacent third sidewalls 1431, and the connection points of the third sidewall 1431 and the second sidewall 1421. In this way, the arc-shaped transition portions connect adjacent first sidewalls 1411 and third sidewalls 1431, adjacent third sidewalls 1431, and adjacent third sidewalls 1431 and second sidewalls 1421, preventing abrupt changes in the rate of water and dust discharge at the connection points. This stabilizes the discharge rate of water and dust collected on the light-receiving surface 211 of the laminate 210, facilitating the discharge of water and dust from the light-receiving surface 211 of the laminate 210.

[0065] Specifically, see Figures 2-5As shown, the first sidewall 1411 and / or the second sidewall 1421 are curved surfaces. For example, only the outline of the first sidewall 1411 may be curved, or only the outline of the second sidewall 1421 may be curved, or both the outlines of the first sidewall 1411 and the second sidewall 1421 may be curved. Thus, by setting the first sidewall 1411 and / or the second sidewall 1421 as curved surfaces, the curved first sidewall 1411 facilitates the guidance of accumulated water and dust to the first region 141, while the curved second sidewall 1421 facilitates the rapid drainage of accumulated water and dust from the first region 141. Furthermore, the drainage rate of accumulated water and dust does not change abruptly during the drainage process, which is beneficial for the smooth drainage of accumulated water and dust from the light-receiving surface 211 of the laminate 210.

[0066] In one embodiment, see Figure 1 , Figure 2 and Figure 6 As shown, the opening width of the slot 140 at the location where it connects with the accommodating space 130 is W, the length of the first sidewall 110 in the first direction is L1, and the length of the second sidewall 120 in the second direction is L2. Wherein, L1 < L2, and ,or, For example, in this embodiment, L1=1134mm, L2=1759mm, then W=7.77mm; or, if L1=1500mm, L2=2000mm, then W=9.74mm or W=8.52mm. This application does not limit the dimensional relationship between W and L1, L2, and the opening width W of the slot 140 can be adaptively set according to the specific parameters of the length L1 of the first border 110 and the length L2 of the second border 120.

[0067] Thus, by limiting the relationship between the opening width W of the slot 140 and the length L1 of the first frame 110 and the length L2 of the second frame 120, the overall structural strength of the photovoltaic frame 100 is guaranteed, and the discharge of accumulated water and dust on the light-receiving surface 211 of the laminate 210 is not affected.

[0068] Further, see Figure 2 , Figure 3 and Figure 6 As shown, in the first direction, the opening length of the slot 140 is C1, and in the second direction, the opening length of the slot 140 is C2. Wherein, ,or, For example, in this embodiment, L1=1134mm, L2=1759mm, then C1=C2=11.5mm; or, if L1=1500mm, L2=2000mm, then C1=C2=17.88mm or C1=C2=13.76mm. This application does not limit the dimensional relationship between C1, C2 and L1, L2, and the opening lengths C1 and C2 of the slot 140 can be adaptively set according to the specific parameters of the length L1 of the first border 110 and the length L2 of the second border 120.

[0069] Thus, by limiting the relationship between the opening lengths C1 and C2 of the slot 140 and the lengths L1 of the first frame 110 and L2 of the second frame 120, the overall structural strength of the photovoltaic frame 100 is guaranteed, and the discharge of accumulated water and dust on the light-receiving surface 211 of the laminate 210 is not affected.

[0070] In one embodiment, see Figure 2 , Figure 3 and Figure 7 As shown, corner brackets 150 are provided at the connection positions of adjacent first frame 110 and second frame 120. The first frame 110 has a first receiving cavity along a first direction, and the second frame 120 has a second receiving cavity along a second direction. The corner bracket 150 includes a bent portion 151 and a first connecting portion 152 and a second connecting portion 153 disposed on opposite sides of the bent portion 151. The first connecting portion 152 is received in the first receiving cavity, and the second connecting portion 153 is received in the second receiving cavity. For example, the first connecting portion 152 is received in the first receiving cavity and connected to the first frame 110 by bolts, and the second connecting portion 153 is received in the second receiving cavity and connected to the second frame 120 by bolts. The corner bracket 150 enables the connection between the first frame 110 and the second frame 120.

[0071] Wherein, the first connecting part 152 and the second connecting part 153 can be either plastic or metal parts, and the bending part 151 is a plastic part. For example, if the first connecting part 152, the second connecting part 153 and the bending part 151 are all plastic parts, the first connecting part 152, the second connecting part 153 and the bending part 151 can be molded from reinforced nylon, polyester materials, polyester hydrocarbon materials, engineering plastics, etc. Since plastic parts are easy to process, it is convenient for the bending process of the bending part 151. The bending part 151 can be injection molded with the first connecting part 152 and the second connecting part 153, simplifying the molding process of the corner bracket 150, reducing the molding cost of the corner bracket 150, and the plastic part can buffer the impact force received by the photovoltaic frame 100. The bending part 151 can be formed into an arc contour to improve the appearance. For example, the first connecting part 152 and the second connecting part 153 are both metal parts, while the bent part 151 is a plastic part. The first connecting part 152 and the second connecting part 153 can be formed from aluminum alloy, stainless steel, etc. The first connecting part 152 and the second connecting part 153 formed from metal materials have high structural strength, which can ensure the structural strength of the corner bracket 150 and the connection strength between the corner bracket 150 and the first frame 110 and the second frame 120. The bent part 151 formed from plastic materials is easy to process and can buffer the impact force on the photovoltaic frame 100. The bent part 151 can be formed into an arc contour to beautify the appearance.

[0072] In one embodiment, see Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, both the first frame 110 and the second frame 120 include a pressing portion 160, which is pressed onto the light-receiving surface 211 of the laminate 210 to ensure the installation stability of the laminate 210 on the photovoltaic frame 100. In the third direction of the photovoltaic frame 100 (… Figure 2 In the Z direction shown, if the third direction is the thickness direction of the first frame 110 and the second frame 120, the top of the corner code 150 is lower than the top of the pressing part 160. The corner code 150 and the pressing part 160 form a groove 140. Since the top of the corner code 150 is lower than the top of the pressing part 160, on the one hand, the corner code 150 can cooperate with the pressing part 160 to form a groove 140. On the other hand, the corner code 150 will not affect the drainage effect of water and dust accumulation at the groove 140 position.

[0073] The height difference H between the top of the corner bracket 150 and the top of the pressing part 160 is 3mm ≤ H ≤ 7mm. H can be any one of 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, or 7mm. Limiting the height difference H between the top of the corner bracket 150 and the top of the pressing part 160 to the above range ensures the connection strength between the first frame 110 and the second frame 120 while preventing the corner bracket 150 from affecting the drainage of water and dust at the slot 140.

[0074] In one embodiment, see Figure 2 , Figure 3 and Figure 8 As shown, the pressing part 160 has an adhesive layer that can be adhered to the laminate 210. On the one hand, the adhesive layer is used to fix the laminate 210 and the photovoltaic frame 100, improving the installation stability of the laminate 210 and the photovoltaic frame 100. On the other hand, since the adhesive layer can deform, it will not interfere with the installation of the laminate 210, and it can fill the gap between the laminate 210 and the photovoltaic frame 100, preventing water and dust from seeping into the interior of the photovoltaic frame 100. The adhesive layer, together with the slot 140, can ensure that water and dust are discharged from the slot 140, thereby improving the drainage effect of water and dust on the light-receiving surface 211 of the laminate 210.

[0075] The thickness of the adhesive layer is D, and 0.1mm ≤ D ≤ 0.5mm. D can be any of the following: 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, or 0.5mm. Limiting the adhesive layer thickness D to this range effectively fills the gap between the laminate 210 and the photovoltaic frame 100 without causing delamination or failure of the adhesive layer due to prolonged use.

[0076] In one embodiment, see Figure 2 , Figure 3 and Figure 7 As shown, the bending portion 151 has a bearing end 1511 and an extending end 1512 extending toward the pressing portion 160. The laminate 210 is supported by the bearing end 1511, which fixes the laminate 210 and improves the installation stability of the laminate 210. The extending end 1512 covers the side wall of the laminate 210, which can protect the laminate 210 from damage or scratches during handling and installation, and also improve the appearance of the photovoltaic module 200. In the third direction, the top of the extending end 1512 is lower than or flush with the light-receiving surface 211 of the laminate 210, so that the corner bracket 150 will not interfere with the drainage of water and dust accumulated on the light-receiving surface 211 of the laminate 210.

[0077] Furthermore, in one embodiment, see [reference] Figure 2 , Figure 3 and Figure 9 As shown, both the first frame 110 and the second frame 120 have an extension 170 on one side of their adjacent ends. The extension 170 extends in either a first or second direction, adjacent to the protruding end 1512, and flush with the top of the protruding end 1512. Thus, by having the extension 170 adjacent to the protruding end 1512, a seamless connection between the first frame 110, the corner bracket 150, and the second frame 120 is ensured, which is beneficial for the drainage of water and dust accumulated at the slot 140. Furthermore, since the extension 170 is flush with the top of the protruding end 1512, it will not interfere with the drainage of water and dust accumulated at the slot 140.

[0078] In another embodiment, see Figure 2 , Figure 3 and Figure 10 As shown, the first frame 110 and the second frame 120 each have an adjacent segment 180 on one side of their adjacent ends. The adjacent segment 180 extends in a third direction and connects to the protruding end 1512. In this embodiment, the adjacent segment 180 is a sidewall on one side of the end of the first frame 110 or the second frame 120. By connecting the protruding end 1512 through the adjacent segment 180, a seamless connection between the first frame 110, the corner bracket 150 and the second frame 120 can be ensured. This is beneficial for the drainage of water and dust accumulated at the slot 140. Furthermore, the adjacent segment 180 does not require CNC (Computer Numerical Control) machining, reducing the molding cost of the photovoltaic frame 100.

[0079] In one embodiment, see Figure 2 and Figure 3 As shown, in the direction parallel to the light-receiving surface 211 of the laminate 210, the distance between the edge of the light-receiving surface 211 of the laminate 210 and the first frame 110 or the second frame 120 is S1, and the distance between the edge of the backlight surface 212 of the laminate 210 and the first frame 110 or the second frame 120 is S2. For example, if the first frame 110 and the second frame 120 have inclined surfaces on their sidewalls near the accommodating space 130, and when the laminate 210 is mounted on the photovoltaic frame 100, the inclined surfaces are inclined relative to the sidewalls of the laminate 210, and in the direction parallel to the light-receiving surface 211 of the laminate 210, S1 ≥ S2. Thus, when there is an installation gap between the photovoltaic frame 100 and the laminate 210, the inclined surface can guide the water and dust on the light-receiving surface 211 of the laminate 210 to be quickly discharged to the slot 140 position, which is conducive to the smooth discharge of the water and dust accumulated on the light-receiving surface 211 of the laminate 210 in the future, and improves the discharge effect of the water and dust accumulated on the light-receiving surface 211 of the laminate 210.

[0080] Wherein, 2mm≤S1≤5mm, 0.1mm≤S2≤2mm. For example, S1 can be any one of 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, and 5mm, and S2 can be any one of 0.1mm, 0.3mm, 0.5mm, 0.8mm, 1mm, 1.3mm, 1.5mm, 1.8mm, and 2mm. Limiting S1 and S2 to the above ranges can ensure the installation stability of the laminate 210 on the photovoltaic frame 100, and also ensure that there is a sufficient gap between the photovoltaic frame 100 and the sidewall of the laminate 210 to guide the water and dust accumulated on the light-receiving surface 211 of the laminate 210 to be smoothly discharged to the slot 140 position.

[0081] 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.

[0082] 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 protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic module, characterized in that, include: Laminated components; Photovoltaic frames, including: At least one first frame extending along a first direction and at least one second frame extending along a second direction, the first frame and the second frame enclosing a receiving space for accommodating the laminate, the two ends of the first frame opposite to each other along the first direction are adjacent to the second frame, and a slot communicating with the receiving space is provided at the connection position of the first frame and the second frame, the opening width of the slot near the receiving space is greater than the opening width of the slot away from the receiving space; Wherein, at least a portion of the slot extends through the first frame along the second direction; and / or, at least a portion of the slot extends through the second frame along the first direction.

2. The photovoltaic module according to claim 1, characterized in that, The slot includes a first region and a second region connected to the first region, the first region being close to the receiving space and the second region being away from the receiving space; The first region has a first sidewall on each of its opposite sides, and the second region has a second sidewall on each of its opposite sides. The slope of the first sidewall is k1, and the slope of the second sidewall is k2. .

3. The photovoltaic module according to claim 2, characterized in that, The slot also includes a plurality of third regions located between the first region and the second region, and the third regions have third sidewalls on opposite sides; Wherein, the slope of the third sidewall near the first region is k. 31 The slope of the third sidewall, which is far from the first region, is k. 32 ,and .

4. The photovoltaic module according to claim 3, characterized in that, An arc-shaped transition portion is provided at the connection between the first sidewall and the third sidewall, at the connection between two adjacent third sidewalls, and at the connection between the third sidewall and the second sidewall.

5. The photovoltaic module according to claim 2, characterized in that, The first sidewall and / or the second sidewall are arc-shaped surfaces.

6. The photovoltaic module according to claim 1, characterized in that, The length of the first border in the first direction is L1, and the length of the second border in the second direction is L2, and L1 < L2.

7. The photovoltaic module according to claim 6, characterized in that, The opening width at the location where the slot communicates with the accommodating space is W, and .

8. The photovoltaic module according to claim 6, characterized in that, The opening width at the location where the slot communicates with the accommodating space is W, and .

9. The photovoltaic module according to claim 6, characterized in that, In the first direction, the opening length of the slot is C1, and in the second direction, the opening length of the slot is C2, and .

10. The photovoltaic module according to claim 6, characterized in that, In the first direction, the opening length of the slot is C1, and in the second direction, the opening length of the slot is C2, and .

11. The photovoltaic module according to claim 1, characterized in that, Corner brackets are provided at the connection points between two adjacent first and second borders; The first frame has a first receiving cavity along the first direction, and the second frame has a second receiving cavity along the second direction. The corner bracket includes a bent portion and a first connecting portion and a second connecting portion disposed on opposite sides of the bent portion. The first connecting portion is received in the first receiving cavity, and the second connecting portion is received in the second receiving cavity.

12. The photovoltaic module according to claim 11, characterized in that, The first connecting part and the second connecting part are either plastic parts or metal parts, and the bending part is a plastic part.

13. The photovoltaic module according to any one of claims 11 or 12, characterized in that, Both the first frame and the second frame include a pressing portion, which is pressed onto the light-receiving surface of the laminate. On the third direction of the photovoltaic frame, the top of the corner bracket is lower than the top of the crimping part, the corner bracket and the crimping part form the groove, and the height difference between the top of the corner bracket and the top of the crimping part is H, 3mm≤H≤7mm.

14. The photovoltaic module according to claim 13, characterized in that, The pressing part has an adhesive layer that can be adhered to the laminate, the thickness of the adhesive layer being D, and 0.1mm≤D≤0.5mm.

15. The photovoltaic module according to claim 13, characterized in that, The bending portion has a bearing end and an extending end that extends toward the pressing portion. The laminate is supported by the bearing end, and the extending end covers the side wall of the laminate. In the third direction, the top of the extending end is lower than or flush with the light-receiving surface of the laminate.

16. The photovoltaic module according to claim 15, characterized in that, The first frame and the second frame each have an extension on one of their adjacent ends. The extension extends toward the first direction or the second direction, and the extension is adjacent to the protruding end and flush with the top of the protruding end.

17. The photovoltaic module according to claim 15, characterized in that, The first frame and the second frame each have an adjacent segment on one of their adjacent ends, the adjacent segment extending toward a third direction and adjacent to the protruding end.

18. The photovoltaic module according to claim 1, characterized in that, In a direction parallel to the light-receiving surface of the laminate, the distance between the edge of the light-receiving surface of the laminate and the first frame or the second frame is S1, and the distance between the edge of the backlight surface of the laminate and the first frame or the second frame is S2. Where 2mm≤S1≤5mm, 0.1mm≤S2≤2mm.

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