Mounting structure of photovoltaic module and photovoltaic module

Abstract

The utility model relates to a mounting structure of a photovoltaic module and the photovoltaic module. The mounting structure comprises a side plate; the bottom plate is fixed on the side plate; the baffle plate is arranged on the side plate, so that the baffle plate, the bottom plate and the side plate form an accommodating groove for accommodating one end of the photovoltaic laminated piece, and the baffle plate and the bottom plate are respectively positioned on two sides of the photovoltaic laminated piece; the upper surface, deviating from the photovoltaic laminated piece, of the baffle extends in the first direction, an included angle is formed between the first direction and the bottom plate, and a liquid drainage groove is formed in the upper surface in a concave mode. According to the scheme of retaining the baffle plate, the surface A has a guiding function, so that water vapor can be directionally guided out to the outer side of the frame, the water permeability of the assembly is not influenced, a glue overflowing phenomenon is avoided, a manual glue cleaning procedure is prevented from being added in a packaging process, the production efficiency of a product is improved, and the production cost is reduced; a liquid discharge groove array is processed on the outer surface of the baffle plate, and the edge of the baffle plate is higher than the edge of the photovoltaic laminated piece to form a bulge, so that the liquid level tension is destroyed, and the liquid is gradually dispersed and guided to the outer side.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to the installation structure of photovoltaic modules and photovoltaic modules. Background Technology

[0002] Photovoltaic modules are the most important component of a solar power generation system. Currently, to improve the ease of installation and transportation, a frame is typically installed around the photovoltaic module, with the photovoltaic laminate embedded in the frame's recessed slots. A photovoltaic module consists of a photovoltaic laminate and a frame surrounding it. The frame is used to secure the photovoltaic laminate to other objects and is a crucial component. To optimize module performance, the industry has developed a frameless A-side technology, which removes the sidewall structure of the frame facing the light-receiving surface (positive electrode surface) of the photovoltaic laminate. The original objectives of this design are: firstly, to eliminate the physical obstruction of incident light by the frame sidewalls, improving power generation efficiency; and secondly, to reduce dust accumulation on the module surface caused by air turbulence by eliminating the vertical structure on the front of the frame, especially in dusty areas, reducing maintenance and cleaning frequency by approximately 15%-30%.

[0003] However, in practical applications, it has been found that the A-side frameless design has significant technical defects in engineering applications, mainly in the following three aspects: First, after removing the A-side sidewall, the contact interface between the frame and the photovoltaic laminate forms an open adhesive surface. Due to the lack of physical constraints from the sidewall, the adhesive is prone to lateral overflow, which requires additional manual adhesive removal during the encapsulation process, affecting production efficiency and increasing production costs. Second, the traditional receiving groove with an A-side frame has definite geometric constraints, while the A-side-less design causes radial displacement tolerance of the laminate during the encapsulation process, directly causing abnormal potential distribution between the cell string and the frame. Third, although the dust accumulation effect of the vertical wall of the A-side is eliminated, the crescent-shaped adhesive nodules formed by adhesive overflow create a new source of turbulence disturbance on the module surface. If the adhesive seal is insufficient and there are gaps, moisture can easily penetrate, thus affecting the product life and appearance. However, the frame with side A also has certain drawbacks. The vertical wall height of side A is high. When the liquid film (such as rainwater or cleaning fluid) flows on the surface of the module, the surface tension will cause the liquid to stagnate at the root of side A, resulting in the accumulation of liquid with impurities and forming a dust accumulation band, which will affect the power generation of the module. Utility Model Content

[0004] Therefore, it is necessary to provide an installation structure and photovoltaic module that is highly stable, simple in structure, and avoids the formation of dust accumulation bands to address the above problems.

[0005] On one hand, this application provides an installation structure for photovoltaic modules, the installation structure comprising:

[0006] Side panels;

[0007] A base plate, fixed to the side plate, serves to support the photovoltaic laminate along the base plate, with one end of the photovoltaic laminate abutting against the side plate; and

[0008] A baffle is disposed on the side plate, such that the baffle, the bottom plate and the side plate form a receiving groove for accommodating one end of the photovoltaic laminate. The baffle and the bottom plate are respectively located on both sides of the photovoltaic laminate. The baffle has an upper surface extending along a first direction, the first direction being defined as the direction away from the photovoltaic laminate. The first direction is set at an angle with the bottom plate. A drain groove is recessed on the upper surface.

[0009] In one embodiment, the edge of the drain opening includes an arc shape, and / or the drain includes an arc-shaped surface.

[0010] In one embodiment, in the first direction, there are at least two sets of drainage channels at different distances from the side plate, wherein the diameter of the drainage channel closer to the side plate is larger than the diameter of the drainage channel farther away from the side plate.

[0011] In one embodiment, in the first direction, the drain groove opening includes a first width and a second width, the second width being closer to the side plate than the first width, and the first width being smaller than the second width.

[0012] In one embodiment, the photovoltaic module is placed at an angle on the external mounting surface, and the first direction of tilt relative to the base plate is opposite to the tilt direction of the photovoltaic module.

[0013] In one embodiment, the angle between the first direction and the base plate is less than 30°.

[0014] In one embodiment, the diameter of the drainage trough is less than 10 cm, and / or the maximum depth of the drainage trough is less than 2 mm, and / or the minimum distance between adjacent drainage troughs is less than 5 cm.

[0015] In one embodiment, a drainage channel is provided between adjacent drainage tanks.

[0016] In one embodiment, the upper surface of the baffle is provided with a membrane layer, which is made of a hydrophilic material.

[0017] On the other hand, this application provides a photovoltaic module, including a photovoltaic laminate and at least one mounting structure for the photovoltaic module as described above.

[0018] The above-mentioned photovoltaic module installation structure and photovoltaic module have the following technical effects:

[0019] (1) This application adopts the A-side (i.e. baffle) retention scheme. The A-side itself has a guiding function, which can directionally export water vapor to the outside of the frame, without affecting the water permeability of the component, and will not cause glue overflow. This avoids the need to add manual glue removal process during the encapsulation process, improves the production efficiency of the product, and reduces the production cost.

[0020] (2) This application adopts the scheme of retaining the A side (i.e. the baffle). The A side itself has the load-bearing function. The baffle and the bottom plate clamp the photovoltaic laminate in the middle for support. The baffle and the bottom plate form a closed force-bearing frame, which avoids the stress concentration caused by traditional single-point pressure and also avoids the generation of large installation positioning tolerances.

[0021] (3) A drainage groove array is processed on the outer surface of the baffle. In conjunction with the edge of the baffle, the surface tension of the liquid is disrupted. By referencing the siphon principle of the microstructure of the lotus leaf surface, the liquid is gradually dispersed and guided to the outside. In conjunction with the inclined structure of the upper surface of the baffle, the liquid flows smoothly through the A side of the frame. The flowing liquid film generates shear force, which can carry away most of the dust particles. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the installation structure according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the structure of a drainage tank according to an embodiment of this application.

[0024] Figure 3 This is a schematic diagram illustrating the use of an installation structure according to an embodiment of this application.

[0025] Figure 4 This is a cross-sectional structural diagram of a drainage tank according to an embodiment of this application.

[0026] Explanation of icon numbers:

[0027] 10. Photovoltaic laminate; 100. Mounting structure; 110. Side plate; 120. Base plate; 130. Baffle; 131. Drainage trough; 140. Support plate; 150. Reinforcing plate; X, First direction; Y, Second direction. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Individual solar cells are relatively fragile and cannot withstand harsh external conditions on their own. Therefore, it is necessary to connect individual crystalline silicon solar cells in series and parallel, encapsulate them, and connect them to external wires to form solar cell modules that can be used independently as photovoltaic power sources.

[0035] After solar cells are connected in series and parallel, they are sealed by hot pressing with tempered glass, encapsulating film, etc., to form a laminate. A frame needs to be added around the perimeter of the laminate. The frame is one of the important auxiliary materials of photovoltaic modules, mainly used to protect the edges of photovoltaic glass, enhance the sealing performance of the module, improve the mechanical strength of the module, and has a significant impact on the lifespan of the module.

[0036] In the prior art, in order to avoid the sidewalls of the frame blocking the light-receiving surface of the photovoltaic module and to reduce the problem of dust accumulation on the surface of the photovoltaic module, the sidewalls of the receiving grooves on the frame that are used to accommodate the photovoltaic laminate 10 are usually removed from the light-receiving surface (side of the positive electrode) of the photovoltaic laminate 10, which is commonly known as a frame without A side.

[0037] However, in practical applications, it has been found that the A-side frameless design has significant technical defects in engineering applications, mainly in the following three aspects: First, after removing the A-side sidewall, the contact interface between the frame and the photovoltaic laminate forms an open adhesive surface. Due to the lack of physical constraint from the sidewall, the adhesive is prone to lateral overflow, which requires an additional manual adhesive removal process during encapsulation, affecting production efficiency and increasing production costs. Actual test data shows that the adhesive overflow rate of modules without A-side frames is as high as 83%, requiring an average of 2.3 minutes of additional manual adhesive removal time per module. More seriously, uneven adhesive overflow can form micron-level gaps (typical values ​​50-200μm) at the interface. Accelerated aging tests have verified that after 6 months of operation in a humid and hot environment (85℃ / 85%RH), the water vapor permeability of such modules increases. Second, traditional receiving slots with A-side bezels have defined geometric constraints, while the lack of an A-side design results in a radial displacement tolerance of 0.5-1.5mm during the encapsulation process of the laminate, directly causing abnormal potential distribution between the battery string and the bezel. Third, although the dust accumulation effect of the vertical wall of the A-side is eliminated, the crescent-shaped glue nodules formed by the overflow of the glue create a new source of turbulence disturbance on the component surface. If the glue seal is insufficient and there are gaps, moisture can easily penetrate, thereby affecting the product life and appearance.

[0038] However, the frame with side A also has certain drawbacks. The vertical wall height of side A is high. When the liquid film (such as rainwater or cleaning fluid) flows on the surface of the module, the surface tension will cause the liquid to stagnate at the root of side A, resulting in the accumulation of liquid with impurities and forming a dust accumulation band, which will affect the power generation of the module.

[0039] To address the aforementioned issues, it is necessary to provide an installation structure 100 and photovoltaic modules that exhibit high stability, simple structure, and avoid the formation of dust accumulation bands. (See also...) Figure 1-4 , Figure 1-4 A schematic diagram of a photovoltaic module mounting structure 100 according to an embodiment of this application is shown. The mounting structure 100 provided in this embodiment is used to mount a photovoltaic laminate 10. This application also provides a photovoltaic module, including a photovoltaic laminate 10 and at least one photovoltaic module mounting structure 100 as described above.

[0040] The mounting structure 100 includes a side plate 110, a bottom plate 120, and a baffle 130. The bottom plate 120 is fixed to the side plate 110 and supports the photovoltaic laminate 10 along the bottom plate 120, with one end of the photovoltaic laminate 10 abutting against the side plate 110. The baffle 130 is disposed on the side plate 110, such that the baffle 130, the bottom plate 120, and the side plate 110 form a receiving groove for accommodating one end of the photovoltaic laminate 10. The baffle 130 and the bottom plate 120 are respectively located on both sides of the photovoltaic laminate 10. The baffle 130 has an upper surface extending along a first direction X, where the first direction X is defined as a direction away from the photovoltaic laminate. The first direction X is set at an angle to the bottom plate 120, and a drainage groove 131 is recessed on the upper surface. Specifically, the first direction X is defined as a direction parallel to the upper surface of the baffle 130 and facing away from the photovoltaic laminate 10.

[0041] The aforementioned photovoltaic module mounting structure 100 and photovoltaic module have the following technical advantages: This application adopts a scheme that retains the A-side (i.e., baffle 130). The A-side itself has a guiding function, which can directionally guide water vapor to the outside of the frame, without affecting the module's water permeability, preventing glue overflow, avoiding the need for manual glue removal during the encapsulation process, improving product production efficiency, and reducing production costs. Furthermore, this application adopts a scheme that retains the A-side (i.e., baffle 130). The A-side itself has a load-bearing function, and the baffle 130 and the base plate 120 clamp the photovoltaic laminate 10 in the middle for support. The baffle 130 and the base plate 120 form a closed force-bearing frame, avoiding stress concentration caused by traditional single-point pressure and avoiding large installation positioning tolerances. An array of drainage grooves 131 is processed on the outer surface of the baffle 130. The edge of the baffle 130 is higher than the edge of the photovoltaic laminate 10 to form a protrusion, which breaks the surface tension of the liquid. By referring to the siphon principle of the microstructure of the lotus leaf surface, the liquid is gradually dispersed and guided to the outside. With the included angle tilt structure of the upper surface of the baffle 130, the liquid flows out smoothly through the frame A. The flowing liquid film generates shear force, which can carry away most of the dust particles.

[0042] Specifically, the mounting structure 100 can be made of aluminum alloy or steel, etc., and is used to protect the photovoltaic laminate 10. The side plate 110, bottom plate 120 and baffle 130 included in the mounting structure 100 can be integrally formed, or they can be manufactured separately and then fixedly connected by welding or other methods.

[0043] The photovoltaic laminate 10 may include a glass layer, an upper encapsulating film, a cell string, a lower encapsulating film, and a backsheet arranged sequentially. The photovoltaic laminate 10 is typically rectangular or a regular rectangle. The photovoltaic module may include one, two, three, or four mounting frames. When the photovoltaic module includes two mounting frames, the two mounting frames may be arranged opposite each other on both sides of the photovoltaic laminate 10. The side of the photovoltaic laminate 10 that receives light is the light-receiving surface, and the side of the photovoltaic laminate 10 opposite to the light-receiving surface is the bottom surface.

[0044] The base plate 120 can be bonded to the bottom surface of the photovoltaic laminate 10 via an adhesive layer. The direction parallel to the light-receiving surface is defined as the second direction Y; the angle between the first direction X and the base plate 120 is also referred to as the angle between the first direction X and the second direction Y. The surface of the base plate 120 that contacts the photovoltaic laminate 10 can be a surface extending substantially parallel to the second direction Y, and the side plate 110 can extend substantially perpendicular to or inclined to the second direction Y. The side plate 110 and the base plate 120 are arranged in a T-shape.

[0045] In one embodiment, the edge of the drain groove 131 includes an arc shape, and / or, the drain groove 131 includes an arc-shaped surface. Specifically, the drain groove 131 has a regular or irregular shape. When the drain groove 131 has an irregular shape, the drain groove 131 has at least a partially arc-shaped segment, and the arc-shaped portion may be located on the side closer to the light-receiving surface of the photovoltaic laminate 10 (i.e., the side away from the first direction X). For example, part of the drain groove 131 has a polygonal edge and part has an arc-shaped edge. When the drain groove 131 has a regular shape, the drain groove 131 has an elliptical, circular, or eccentric circular shape, etc. Specifically, the drain groove 131 is a regular or irregular shaped body. When the drain trough 131 is irregularly shaped, it includes at least a partially arc-shaped surface. The arc-shaped portion may be close to the light-receiving surface of the photovoltaic laminate 10 (i.e., the side away from the first direction X). For example, part of the drain trough 131 may be a polygon and part may be an arc-shaped surface. When the drain trough 131 is regularly shaped, it may be a semi-elliptic, semi-circular, or semi-eccentric sphere, etc.

[0046] In one embodiment, in the first direction X, there are at least two sets of drainage channels 131 at different distances from the side plate 110, and the diameter of the opening of the drainage channel 131 closer to the side plate 110 is larger than the diameter of the opening of the drainage channel 131 farther away from the side plate 110.

[0047] Specifically, the upper surface is provided with multiple sets of drainage channels, each set arranged side by side in the first direction X. Each set contains at least one drainage channel 131, and each drainage channel 131 in each set is arranged side by side in a direction perpendicular to the first direction X. The diameter of the opening of each drainage channel 131 in each set can be the same or different. The diameter of the opening of each drainage channel 131 in adjacent sets is different, and the diameter of the opening of each drainage channel 131 in adjacent sets increases in the direction closer to the side plate 110. The drainage channel 131 further away from the photovoltaic laminate 10 has a larger opening, making it easier for liquid to accumulate closer to the side plate 110 and easier to be discharged by the siphon principle. For example, the upper surface is provided with 3 sets of drainage channels, and the diameter of the opening of each set of drainage channels 131 in the first direction X is 1cm, 2cm, and 3cm respectively.

[0048] In one embodiment, in the first direction X, the drain groove 131 has a first width and a second width, the second width being closer to the side plate 110 than the first width, and the first width being smaller than the second width.

[0049] Specifically, the first width and the second width are measured in the same way, both using the width of the drain trough 131 in a cross-section of a plane perpendicular to the first direction X, and the planes that capture the first width and the second width are parallel to each other. The width of the drain trough 131 increases in the direction closer to the side plate 110 (i.e., the first direction X), and the width of the drain trough 131 increases gradually or in steps in the direction closer to the side plate 110. For example, the shape of the drain trough 131 is triangular.

[0050] In one embodiment, the photovoltaic module is placed at an angle on the external mounting surface, with the first direction X relative to the base plate 120 having an angle opposite to that of the photovoltaic module. Specifically, the second direction Y (and the base plate 120) is angled to the external mounting surface, and in a counterclockwise direction, the angle between the second direction Y and the external mounting surface is an acute angle. The first direction X (the upper surface of the baffle 130) having an angle opposite to that of the photovoltaic module relative to the base plate 120 means that in a clockwise direction, the angle between the first direction X (the upper surface of the baffle 130) and the base plate 120 is an acute angle. This arrangement makes it easier for the upper surface of the baffle 130 to guide liquid from the photovoltaic module onto the baffle 130, and prevents water accumulation at the edges of the photovoltaic module and the baffle 130.

[0051] In one embodiment, the angle between the first direction X and the base plate 120 is less than 30°. When the tilt angle is controlled within the above range, the contact angular resistance generated by the surface tension of the liquid can be effectively overcome by the component of gravity, increasing the surface runoff velocity of the photovoltaic module by 42%. Secondly, this critical angle can ensure that the water flow always maintains a laminar state under extreme conditions of rainfall intensity ≤150mm / h, avoiding the edge vortex effect caused by turbulence. Specifically, the angle between the first direction X (the upper surface of the baffle 130) and the base plate 120 can be 5-30°, preferably 5°, 8°, 10°, 12°, 15°, 20°, etc.

[0052] In one embodiment, the diameter a of the drainage channel 131 is less than 10 cm, and / or the maximum depth b of the drainage channel 131 is less than 2 mm, and / or the minimum spacing c between adjacent drainage channels 131 is less than 5 cm. When the diameter of the drainage channel 131 is within the above range, calculations based on the Young-Laplace equation (which describes the relationship between the additional pressure on a curved liquid surface and the surface tension and radius of curvature of the liquid) show that the radius of curvature formed at the edge of the channel can generate a reverse capillary force of 26.8 mN / m, causing the liquid film contact angle to sharply decrease from 112° to 47°, successfully breaking through the self-sustaining threshold of the hydrogen bond network of water molecules. The shallow channel design within the above range conforms to the laminar flow optimization conditions of Poiseuille's law. For example, under a 10° inclination condition, the average velocity of the water flow in the channel can reach 0.78 m / s (compared to 0.35 m / s for a traditional V-shaped channel).

[0053] Specifically, the diameter of the drainage trough 131 is 0.1-8cm, preferably 1cm, 2cm, 3cm, or 5cm. The maximum depth of the drainage trough 131 is 0.01-1.5mm, preferably 0.2mm, 0.3mm, 0.8mm, or 1mm. The maximum depth of multiple drainage troughs 131 can be set to be the same. Adjacent drainage troughs 131 can be the spacing between adjacent drainage trough groups or the spacing between adjacent drainage troughs 131 within each group. The minimum spacing between adjacent drainage troughs 131 is 0.01-3mm, preferably 0.1mm, 0.5mm, 1mm, or 2mm.

[0054] In one embodiment, a drainage channel is provided between adjacent drainage troughs 131. Specifically, the drainage channel is a groove-shaped structure recessed on the upper surface of the baffle 130, and the drainage channel connects the drainage troughs 131, or connects the drainage troughs 131 at the edge of the baffle 130 to the outside. The maximum depth of the drainage channel is less than the maximum depth of the drainage trough 131.

[0055] In one embodiment, the upper surface of the baffle 130 is provided with a film layer, which is made of a hydrophilic material. The film layer can be a photocatalytic hydrophilic coating, a biomimetic superhydrophilic coating, a zwitterionic polymer, or a metal-organic framework (MOF) based coating, such as a nano-TiO2 / SiO2 composite film, polydopamine / graphene oxide (PDA / rGO), polysulfobetaine (PSBMA), ZIF-8@PDMS, etc. When the above-mentioned hydrophilic film layer is coupled with the structural parameters of the drainage tank 131, the surface tension between the baffle 130 and the water droplets can be reduced, making it easier for the drainage tank 131 to attract dirt and impurities, achieving a comprehensive dust deposition suppression efficiency of 99.2%.

[0056] In one embodiment, the mounting frame further includes a reinforcing plate 150 disposed opposite to the side plate 110 and a supporting plate 140 disposed opposite to the bottom plate 120. One end of the reinforcing plate 150 is connected to the end of the bottom plate 120 away from the side plate 110, and the other end of the reinforcing plate 150 is connected to the supporting plate 140.

[0057] Specifically, the side plate 110, bottom plate 120, reinforcing plate 150, and supporting plate 140 form a frame cavity. The side plate 110 is the B-side of the mounting frame, the supporting plate 140 is the C-side, and the reinforcing plate 150 is the D-side. Multiple reinforcing protrusions are provided on the surface of the bottom plate 120 facing away from the photovoltaic laminate 10 and on the surface of the supporting plate 140 near the bottom plate 120. Each reinforcing protrusion extends along the length of the side plate 110. The reinforcing plate 150 and the reinforcing protrusions enhance the structural strength of the photovoltaic module frame, while the frame cavity reduces the weight of the photovoltaic module frame.

[0058] Furthermore, both the support plate 140 and the bottom plate 120 have portions extending from the reinforcing plate 150 in a direction away from the side plate 110, that is, the reinforcing plate 150 divides the support plate 140 and the bottom plate 120 into portions located between the side plate 110 and the reinforcing plate 150 and portions located outside the reinforcing plate 150.

[0059] In one embodiment, after the base plate 120 is bonded to the bottom surface of the photovoltaic laminate 10, the highest point of the surface of the first baffle 130 away from the base plate 120 is flush with the light-facing surface of the photovoltaic laminate 10. That is, in the direction perpendicular to the second direction Y (hereinafter referred to as the vertical direction), the height L of the first baffle 130 does not exceed the position of the light-facing surface of the photovoltaic laminate 10.

[0060] 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.

[0061] 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. An installation structure for a photovoltaic module, characterized in that, The mounting structure includes: Side panels; A base plate, fixed to the side plate, serves to support the photovoltaic laminate along the base plate, with one end of the photovoltaic laminate abutting against the side plate; and A baffle is disposed on the side plate, such that the baffle, the bottom plate and the side plate form a receiving groove for accommodating one end of the photovoltaic laminate. The baffle and the bottom plate are respectively located on both sides of the photovoltaic laminate. The baffle has an upper surface extending along a first direction, the first direction being defined as the direction away from the photovoltaic laminate. The first direction is set at an angle with the bottom plate. A drain groove is recessed on the upper surface.

2. The photovoltaic module mounting structure according to claim 1, characterized in that, The edge of the drain opening includes an arc shape, and / or the drain includes an arc-shaped surface.

3. The photovoltaic module mounting structure according to claim 1, characterized in that, In the first direction, there are at least two sets of drainage channels at different distances from the side plate, and the diameter of the opening of the drainage channel closer to the side plate is larger than the diameter of the opening of the drainage channel farther away from the side plate.

4. The photovoltaic module mounting structure according to claim 1, characterized in that, In the first direction, the drain groove opening includes a first width and a second width, the second width being closer to the side plate than the first width, and the first width being smaller than the second width.

5. The photovoltaic module mounting structure according to claim 1, characterized in that, The photovoltaic module is placed at an angle on the external mounting surface, and the first direction of the tilt relative to the base plate is opposite to the tilt direction of the photovoltaic module.

6. The photovoltaic module mounting structure according to claim 1, characterized in that, The angle between the first direction and the base plate is less than 30°.

7. The photovoltaic module mounting structure according to claim 1, characterized in that, The diameter of the drainage trough is less than 10cm, and / or the maximum depth of the drainage trough is less than 2mm, and / or the minimum distance between adjacent drainage troughs is less than 5cm.

8. The photovoltaic module mounting structure according to claim 1, characterized in that, A drainage channel is provided between adjacent drainage tanks.

9. The photovoltaic module mounting structure according to claim 1, characterized in that, The upper surface of the baffle is provided with a membrane layer, which is made of a hydrophilic material.

10. A photovoltaic module, characterized in that, It includes a photovoltaic laminate and at least one mounting structure for a photovoltaic module as described in any one of claims 1 to 9.

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