Multistage waterproof transverse frame and photovoltaic module, photovoltaic module mounting system

Abstract

This utility model discloses a multi-level waterproof horizontal frame, photovoltaic modules, and a photovoltaic module installation system. The horizontal frame includes an upper frame and a lower frame. The upper frame includes a first horizontal plate, a second horizontal plate, and a second lower folded edge. The lower frame includes a second top plate, a first water channel, and a first upper folded edge. In use, the second horizontal plate overlaps the second top plate, and the first upper folded edge works in conjunction with the second lower folded edge. Compared with conventional horizontal frames, this utility model's horizontal frame, by overlapping and clamping the upper frame onto the lower frame, enables quick and stable installation of photovoltaic modules and can create at least three levels of waterproofing, providing better waterproofing. It also features a simpler structure, lower weight, lower cost, higher mechanical strength, and faster installation. It can be widely used in module framing and can also enable the widespread use of photovoltaic modules in BIPV or BAPV systems, demonstrating high practical value and promising application prospects.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module structure technology, and relates to a multi-level waterproof horizontal frame and photovoltaic module, and photovoltaic module installation system. Background Technology

[0002] In Building Integrated Photovoltaic (BIPV) systems (such as BAPV), to better install photovoltaic (PV) modules onto the building, the PV module frames are typically divided into vertical and horizontal frames. The vertical frames serve as support points, used to fix the PV modules to the main water channel above the support structure. A water guide cover is usually installed between the horizontal frames of adjacent PV modules. Additionally, in BIPV systems, a secondary water guide channel is usually installed below the horizontal frame joints to enhance the waterproofing of the horizontal frames. However, if the waterproofing of the horizontal frames is poor, a large amount of rainwater can enter the main water channel through the secondary water guide channel, increasing the operating load of the main water channel and making leakage more likely. Therefore, improving the waterproofing performance of the PV module horizontal frames is crucial for extending the lifespan of BIPV systems.

[0003] The main methods used to improve the waterproofing of the horizontal frame of existing photovoltaic modules are as follows:

[0004] (1) Filling the space between the two horizontal frames with adhesive strips can achieve a good waterproof effect. However, as the adhesive strips age, the sealing effect deteriorates, and there is still a risk of leakage. At the same time, abnormal components are not easy to replace, and maintenance is inconvenient. In addition, in existing BIPV or BAPV systems, not only will the cost increase, but the installation workload will also be large, the construction process will be more complicated, and the installation efficiency will be low.

[0005] To address the aforementioned issues, researchers have proposed an improved border, such as... Figure 1 As shown, by setting an extension edge on the frame to cover the filling strip between the frames, the strip is protected, the aging of the strip is slowed down, and the strip is prevented from falling off due to thermal expansion and contraction. The extension edge covering the frame can also reduce the amount of water entering between the photovoltaic modules. However, its drawbacks are: (a1) The protruding extension edge makes it inconvenient to fasten the longitudinal cover plate; (a2) The use of the strip will inevitably lead to the risk of water seepage due to the aging of the strip, which may easily lead to water leakage in BIPV or BAPV systems and is not conducive to improving their service life; (a3) ​​Clamping parts are set to clamp the frames of adjacent photovoltaic modules, but this will inevitably increase the amount of metal consumables used and increase the difficulty of operation, which is not conducive to achieving quick installation.

[0006] (2) An upper connector and a lower connector are respectively set on the two horizontal frames of the photovoltaic module, and the horizontally adjacent photovoltaic modules are connected by the upper connector and the lower connector to form a horizontal waterproof structure. However, as an overlapping waterproof method, this horizontal waterproof structure has the following defects: the upper connector and the lower connector have low structural strength, which makes the frame easy to be deformed by collision and squeezing during installation and transportation; there are gaps at the overlap, and the waterproof effect is not good, which causes a large amount of rainwater to enter the main water tank through the secondary water guide channel, which easily increases the drainage pressure of the main water tank.

[0007] To address the aforementioned issues, researchers have proposed an improved border, such as... Figure 2 As shown, the extension edge set on the top plate of one of the horizontal frames is moved down, and the horizontally adjacent photovoltaic modules are then overlapped in the same plane through the extension edge to form a horizontal waterproof structure. A water guide channel is set below the overlap of the extension edge, which can enhance the waterproof effect of the horizontal frame. However, its defects are: (b1) water is easy to accumulate at the overlap and the sealing effect is poor, resulting in gaps and poor waterproof effect; (b2) the water guide channel is large in volume and has low utilization rate; (b3) the structure is complex, the amount of profile used is large, the frame weight is heavy, and the cost is very high; (b4) it is difficult to accurately position and splice, making it difficult to achieve quick and stable installation.

[0008] Therefore, finding a horizontal frame that is simple in structure, not easily deformed, has strong wind uplift resistance and front load capacity, is easy to install, has low cost, and good waterproof performance without significantly increasing metal consumption is of great significance for promoting the widespread application of photovoltaic modules. Utility Model Content

[0009] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a multi-level waterproof horizontal frame and photovoltaic module, and photovoltaic module installation system that does not significantly increase metal consumption, has a simple structure, is not easily deformed, has strong wind uplift resistance and front load capacity, is easy to install, has low cost, and has good waterproof effect.

[0010] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0011] A multi-level waterproof horizontal frame, including a top frame and a bottom frame;

[0012] The upper frame includes a first body, which includes a first connecting cavity. A first top plate is provided above the first connecting cavity. One end of the first top plate is connected to the first connecting cavity via a first vertical plate and forms a first mounting groove for accommodating the laminate between the first connecting cavity, the first top plate, and the first vertical plate. The other end of the first top plate extends along a first direction X with a first horizontal plate. The end of the first horizontal plate away from the first top plate is bent downward to form a second lower folded edge. The end of the first horizontal plate away from the first top plate extends along the first direction X with a second horizontal plate. The end of the second horizontal plate away from the second lower folded edge is bent downward to form a third lower folded edge.

[0013] The lower frame includes a second body, the second body includes a second connecting cavity, a second top plate is provided above the second connecting cavity, one end of the second top plate is connected to the second connecting cavity through a second vertical plate and a second mounting groove for accommodating the laminate is formed between the second top plate, the second vertical plate and the second connecting cavity, the second top plate, the second vertical plate and the second connecting cavity, the second vertical plate extends a first length D1 along the direction opposite to the first direction X and then bends upward to form a first upper folded edge, a first water groove is formed between the first upper folded edge and the second vertical plate;

[0014] In use, the second horizontal plate overlaps the second top plate, and the first upper folded edge and the second lower folded edge work together.

[0015] As a further improvement to the above technical solution: the first upper folded edge and the second lower folded edge are connected by a snap-fit ​​mechanism.

[0016] As a further improvement to the above technical solution: the second lower folded edge is provided with a number of grooves or protrusions on the side away from the first vertical plate; the first upper folded edge is provided with a number of grooves or protrusions on the side away from the second vertical plate.

[0017] As a further improvement to the above technical solution: a reinforcing cavity is provided on one side of the second connecting cavity, and the reinforcing cavity is located below the first water tank.

[0018] As a further improvement to the above technical solution: a third vertical plate extends along the second direction Y on the side of the reinforcing cavity away from the second connecting cavity.

[0019] As a further improvement to the above technical solution: a second water tank is formed between the second vertical plate, the reinforcing cavity and the third vertical plate.

[0020] As a further improvement to the above technical solution: the first horizontal plate has a first downward folded edge at one end near the first top plate and forms a fixed cavity between the first vertical plate, the first horizontal plate and the first downward folded edge to accommodate the third vertical plate; the second horizontal plate is inclined upward and overlaps the second top plate during use.

[0021] As a general technical concept, this utility model also provides a photovoltaic module, which includes the above-mentioned multi-level waterproof horizontal frame and laminate; the edge of the laminate is fixed in the first mounting groove or the second mounting groove of the horizontal frame.

[0022] As a general technical concept, this utility model also provides a photovoltaic module installation system, including at least two photovoltaic modules as described above; the upper and lower frames of the corresponding horizontal frames of two adjacent photovoltaic modules are spliced ​​together by overlapping and clamping.

[0023] As a further improvement to the above technical solution, it also includes: a bracket; the photovoltaic module is installed on the bracket, so that the plane where the first top plate is located is tilted downward.

[0024] As a further improvement to the above technical solution: the angle between the plane where the first top plate is located and the horizontal plane is 5° to 60°.

[0025] As a further improvement to the above technical solution: the angle between the plane where the first top plate is located and the horizontal plane is 15° to 40°.

[0026] Compared with the prior art, the advantages of this utility model are:

[0027] (1) In view of the defects of existing photovoltaic module frames such as splicing difficulties, high cost and poor waterproof effect, this utility model creatively proposes a multi-level waterproof horizontal frame, including an upper frame and a lower frame. In use, the upper frame is overlapped and clamped on the lower frame. By pressing the clamp and locking position, quick and stable installation can be achieved. Moreover, it can build a three-level waterproof effect. Specifically, the second horizontal plate is overlapped on the second top plate to form a level 1 waterproof, which can effectively reduce rainwater from entering the first water tank; the first water tank is used as a level 2 waterproof, which can drain the leaking / seepage water entering the first water tank to the main water tank, which can effectively improve the waterproof effect. More importantly, the first upper folded edge and the second lower folded edge are used together to form a level 3 waterproof between the first upper folded edge and the second lower folded edge, which can effectively reduce water seepage from the first water tank. Compared with conventional horizontal frames, the horizontal frame of this utility model has a simpler structure, lower weight, lower cost, higher mechanical strength, and can be installed more quickly. In particular, by designing a multi-level waterproof structure, it has a better waterproof effect.

[0028] (2) In the horizontal frame of this utility model, the first upper folded edge and the second lower folded edge are connected by a snap-fit, which not only strengthens the overlap between the upper frame and the lower frame and helps to improve the mechanical strength of the horizontal frame, but also improves the level 3 waterproof effect. At the same time, several grooves or protrusions are set on the side of the first upper folded edge and the second lower folded edge that are close to each other. The grooves and protrusions can improve the installation stability of the upper frame and the lower frame.

[0029] (3) In the horizontal frame of this utility model, a reinforcing cavity is provided on one side of the second connecting cavity and the reinforcing cavity is located below the first water tank. On the one hand, the second connecting cavity is provided in the lower frame, which not only facilitates the installation of the frame by the corner bracket, but also enhances the load performance of the component. On the other hand, the reinforcing cavity is provided on the side of the lower frame that is close to the upper frame. As a stable extension part, it can not only avoid abnormal installation of the clamp due to deformation, but also avoid the upper frame pressing down on the lower frame after installation, thus playing a role in structural stability.

[0030] (4) In the horizontal frame of this utility model, a third vertical plate extends along the second direction Y on the side of the reinforcing cavity away from the second connecting cavity, and a second water tank is formed between the second vertical plate, the reinforcing cavity and the third vertical plate. As a relatively larger water tank, it can collect the water dripping from the level 3 waterproofing point and drain it to the main water tank, thereby achieving level 4 waterproofing.

[0031] (5) In the horizontal frame of this utility model, the first horizontal plate is provided with a first lower folded edge at one end near the first top plate and a fixing cavity that can accommodate the third vertical plate is formed between the first vertical plate, the first horizontal plate and the first lower folded edge. By using the fixing cavity to engage the third vertical plate, on the one hand, the installation stability of the upper frame and the lower frame can be improved, thereby strengthening the overall wind resistance of the photovoltaic system. On the other hand, it can achieve level 5 waterproofing, thereby effectively preventing water leakage in the second water tank from extending out, which is beneficial to improving the waterproofing effect.

[0032] As can be seen, the multi-level waterproof horizontal frame of this utility model has the advantages of not significantly increasing metal consumption, simple structure, not easy to deform, strong wind resistance and front load capacity, convenient installation, low cost, and good waterproof effect. It can be widely used in module frames and can also realize the widespread use of photovoltaic modules in BIPV or BAPV systems. It has high use value and good application prospects.

[0033] (6) The photovoltaic module installation system of this utility model includes at least two photovoltaic modules, and the upper and lower frames of the corresponding horizontal frames of the two adjacent photovoltaic modules are spliced ​​together by overlapping and clamping. At the same time, the photovoltaic modules are installed on the bracket, and the plane of the first top plate of the horizontal frame is tilted downward. At this time, rainwater can be prevented from flowing to the overlapping interface, thereby creating a level 6 waterproof between the two adjacent photovoltaic modules and further improving the waterproof effect. Attached Figure Description

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] Figure 1 This is a schematic diagram of the horizontal frame structure of a conventional photovoltaic module.

[0036] Figure 2 This is a schematic diagram of the horizontal frame structure of an existing improved photovoltaic module.

[0037] Figure 3 This is a structural diagram of the upper frame corresponding to the horizontal frame of the multi-level waterproof design of this utility model.

[0038] Figure 4 This is a top view of the upper frame corresponding to the horizontal frame of the multi-level waterproof structure of this utility model.

[0039] Figure 5 This is a schematic diagram of the lower frame corresponding to the horizontal frame of the multi-level waterproof structure of this utility model.

[0040] Figure 6 This is a top view of the lower frame corresponding to the horizontal frame of the multi-level waterproof structure of this utility model.

[0041] Figure 7 This is a schematic diagram of the overall structure of the horizontal frame of the multi-level waterproof design of this utility model.

[0042] Figure 8 This is a diagram illustrating the overall waterproof effect of the horizontal frame of the multi-level waterproof structure of this utility model.

[0043] Legend:

[0044] 101. First connecting cavity; 102. First top plate; 103. First vertical plate; 104. First mounting groove; 105. First horizontal plate; 106. First lower folded edge; 107. Fixing cavity; 108. Second lower folded edge; 109. Groove; 110. Second horizontal plate; 111. Third lower folded edge; 201. Second connecting cavity; 202. Second top plate; 203. Second vertical plate; 204. Second mounting groove; 205. First upper folded edge; 206. First water tank; 207. Protrusion; 208. Reinforcing cavity; 209. Third vertical plate; 210. Second water tank. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0046] Example

[0047] like Figure 1-2 As shown, existing methods for sealing the horizontal frames of adjacent photovoltaic modules mainly rely on adhesive strips or overlapping. However, these methods still suffer from drawbacks such as high metal consumption, complex structure, large material usage, heavy frame weight, difficult splicing, limited quick installation, high cost, and poor waterproofing. To address these technical problems, this invention provides a multi-level waterproof horizontal frame, as detailed below:

[0048] like Figures 3-8 As shown, the multi-level waterproof horizontal frame of this embodiment includes a top frame and a bottom frame;

[0049] The upper frame includes a first body, which includes a first connecting cavity 101. A first top plate 102 is provided above the first connecting cavity 101. One end of the first top plate 102 is connected to the first connecting cavity 101 via a first vertical plate 103, and a first mounting groove 104 for accommodating the laminate is formed between the first connecting cavity 101, the first top plate 102, and the first vertical plate 103. The other end of the first top plate 102 extends along the first direction X to form a first horizontal plate 105. The end of the first horizontal plate 105 away from the first top plate 102 is bent downward to form a second lower folded edge 108. The end of the first horizontal plate 105 away from the first top plate 102 extends along the first direction X to form a second horizontal plate 110. The end of the second horizontal plate 110 away from the second lower folded edge 108 is bent downward to form a third lower folded edge 111.

[0050] The lower frame includes a second body, which includes a second connecting cavity 201. A second top plate 202 is provided above the second connecting cavity 201. One end of the second top plate 202 is connected to the second connecting cavity 201 through a second vertical plate 203, and a second mounting groove 204 for accommodating the laminate is formed between the second top plate 202, the second vertical plate 203 and the second connecting cavity 201. The second vertical plate 203 extends a first length D1 along the direction opposite to the first direction X and then bends upward to form a first upper folded edge 205. A first water tank 206 is formed between the first upper folded edge 205 and the second vertical plate 203.

[0051] In use, the second horizontal plate 110 overlaps the second top plate 202, and the first upper fold 205 and the second lower fold 108 are used together.

[0052] In this embodiment, during use, the upper frame is overlapped and clamped onto the lower frame. Pressing the clamps and locking the frame allows for quick and stable installation, creating a three-tiered waterproof effect. Specifically: the second horizontal plate overlaps the second top plate, forming a level 1 waterproof effect, effectively reducing rainwater ingress into the first water tank; the first water tank serves as a level 2 waterproof effect, draining any leaks / seepage into the main water tank, further enhancing the waterproofing. More importantly, the first upper fold and the second lower fold work together to create a level 3 waterproof effect between them, effectively reducing water seepage from the first water tank. Compared to conventional horizontal frames, this invention features a simpler structure, lower weight, lower cost, higher mechanical strength, and faster installation. In particular, the multi-tiered waterproof structure provides superior waterproofing.

[0053] In this embodiment, the first upper folded edge 205 and the second lower folded edge 108 are connected by a snap-fit ​​mechanism.

[0054] In this embodiment, the second lower folded edge 108 is provided with a plurality of grooves 109 or protrusions on the side away from the first vertical plate 103; the first upper folded edge 205 is provided with a plurality of grooves or protrusions 207 on the side away from the second vertical plate 203.

[0055] In this embodiment, the first upper folded edge and the second lower folded edge are connected by a snap-fit, which not only strengthens the overlap between the upper and lower frame and improves the mechanical strength of the horizontal frame, but also enhances the level 3 waterproof effect. At the same time, several grooves or protrusions are provided on the side of the first upper folded edge and the second lower folded edge that are close to each other. The grooves and protrusions can improve the installation stability of the upper and lower frame.

[0056] In this embodiment, a reinforcing cavity 208 is provided on one side of the second connecting cavity 201, and the reinforcing cavity 208 is located below the first water tank 206.

[0057] In this embodiment, a reinforcing cavity is provided on one side of the second connecting cavity, and the reinforcing cavity is located below the first water tank. On the one hand, the second connecting cavity is provided in the lower frame, which not only facilitates the installation of the frame assembly through the corner bracket, but also enhances the load-bearing performance of the component. On the other hand, the reinforcing cavity is provided on the side of the lower frame that is close to the upper frame. As a stable extension, it can not only avoid abnormal installation of the clamp due to deformation, but also prevent the upper frame from pressing down on the lower frame after installation, thus playing a role in structural stability.

[0058] In this embodiment, a third vertical plate 209 extends along the second direction Y on the side of the reinforcing cavity 208 away from the second connecting cavity 201.

[0059] In this embodiment, a second water tank 210 is formed between the second vertical plate 203, the reinforcing cavity 208 and the third vertical plate 209.

[0060] In this embodiment, a third vertical plate extends along the second direction Y on the side of the reinforcing cavity away from the second connecting cavity, and a second water tank is formed between the second vertical plate, the reinforcing cavity and the third vertical plate. As a relatively larger water tank, it can collect water dripping from the level 3 waterproofing point and drain it to the main water tank, thereby achieving level 4 waterproofing.

[0061] In this embodiment, the first horizontal plate 105 is provided with a first lower folded edge 106 at one end near the first top plate 102, and a fixing cavity 107 that can accommodate the third vertical plate 209 is formed between the first vertical plate 103, the first horizontal plate 105 and the first lower folded edge 106; the second horizontal plate 110 is inclined upward, and in use, the second horizontal plate 110 overlaps the second top plate 202.

[0062] In this embodiment, by using the fixed cavity to engage the third vertical plate, on the one hand, the installation stability of the upper and lower frames can be improved, thereby enhancing the overall wind resistance of the photovoltaic system. On the other hand, it can achieve level 5 waterproofing, which can effectively prevent water leakage from the second water tank from extending out, thus improving the waterproofing effect.

[0063] The photovoltaic module of this embodiment includes the aforementioned horizontal frame and laminate, with the edge of the laminate fixed within the first mounting groove 104 or the second mounting groove 204 of the horizontal frame.

[0064] The photovoltaic module installation system of this embodiment includes at least two of the aforementioned photovoltaic modules, and the upper and lower edges of the corresponding horizontal frames of two adjacent photovoltaic modules are spliced ​​together by overlapping and clamping.

[0065] In this embodiment, it also includes: a bracket; the photovoltaic module is mounted on the bracket so that the plane of the first top plate 102 of the horizontal frame is tilted downward.

[0066] In this embodiment, the angle between the plane where the first top plate 102 of the horizontal frame is located and the horizontal plane is 30°. In other embodiments, the angle between the plane where the first top plate 102 of the horizontal frame is located and the horizontal plane can also be 5°, 15°, 25°, 35°, 45°, 55°, or 60°.

[0067] In this invention, by installing the spliced ​​photovoltaic modules on the bracket at a downward angle, that is, at the same installation angle as the roof, rainwater can be effectively prevented from flowing into the joint, thereby creating a level 6 waterproof structure, which can further improve the waterproof effect.

[0068] The results above show that, compared with the conventional horizontal frame of photovoltaic modules, the horizontal frame of this utility model, through optimizing the overlapping and clamping structure of the upper and lower frames, and adding two water channels of different sizes and a reinforcing cavity, achieves a level 5 waterproof design. This not only enables quick installation but also ensures that the horizontal overlap is leak-free. It also strengthens the overall wind uplift resistance and frontal load capacity of the system. It boasts advantages such as minimal increase in metal consumption, simple structure, resistance to deformation, strong wind uplift resistance and frontal load capacity, convenient installation, low cost, and good waterproofing. It can be widely used in module framing and enables the widespread application of photovoltaic modules in BIPV or BAPV systems, demonstrating high practical value and promising application prospects.

[0069] The above embodiments are merely preferred embodiments of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that improvements and modifications made by those skilled in the art without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A multi-level waterproof horizontal frame, characterized in that, Including the top and bottom borders; The upper frame includes a first body, which includes a first connecting cavity (101). A first top plate (102) is provided above the first connecting cavity (101). One end of the first top plate (102) is connected to the first connecting cavity (101) through a first vertical plate (103) and forms a first mounting groove (104) for accommodating the laminate between the first connecting cavity (101), the first top plate (102), and the first vertical plate (103). The other end of the first top plate (102) extends along the first direction X with a first horizontal plate (105). The end of the first horizontal plate (105) away from the first top plate (102) is bent downward to form a second lower folded edge (108). The end of the first horizontal plate (105) away from the first top plate (102) extends along the first direction X with a second horizontal plate (110). The end of the second horizontal plate (110) away from the second lower folded edge (108) is bent downward to form a third lower folded edge (111). The lower frame includes a second body, which includes a second connecting cavity (201). A second top plate (202) is provided above the second connecting cavity (201). One end of the second top plate (202) is connected to the second connecting cavity (201) through a second vertical plate (203) and a second mounting groove (204) for accommodating the laminate is formed between the second top plate (202), the second vertical plate (203) and the second connecting cavity (201). The second vertical plate (203) extends a first length D1 along the direction opposite to the first direction X and then bends upward to form a first upper folded edge (205). A first water tank (206) is formed between the first upper folded edge (205) and the second vertical plate (203). In use, the second horizontal plate (110) overlaps the second top plate (202), and the first upper fold (205) and the second lower fold (108) are used together.

2. The multi-level waterproof horizontal frame according to claim 1, characterized in that, The first upper folded edge (205) and the second lower folded edge (108) are connected by a snap-fit.

3. The multi-level waterproof horizontal frame according to claim 2, characterized in that, The second lower folded edge (108) has several grooves (109) or protrusions on the side away from the first vertical plate (103); the first upper folded edge (205) has several grooves or protrusions (207) on the side away from the second vertical plate (203).

4. The multi-level waterproof horizontal frame according to any one of claims 1 to 3, characterized in that, A reinforcing cavity (208) is provided on one side of the second connecting cavity (201), and the reinforcing cavity (208) is located below the first water tank (206).

5. The multi-level waterproof horizontal frame according to claim 4, characterized in that, The reinforcing cavity (208) extends along the second direction Y on the side away from the second connecting cavity (201) with a third vertical plate (209).

6. The multi-level waterproof horizontal frame according to claim 5, characterized in that, A second water tank (210) is formed between the second vertical plate (203), the reinforcing cavity (208) and the third vertical plate (209).

7. The multi-level waterproof horizontal frame according to claim 6, characterized in that, The first horizontal plate (105) has a first lower folded edge (106) at one end near the first top plate (102) and forms a fixed cavity (107) between the first vertical plate (103), the first horizontal plate (105) and the first lower folded edge (106) to accommodate the third vertical plate (209); the second horizontal plate (110) is inclined upward, and in use, the second horizontal plate (110) overlaps the second top plate (202).

8. A photovoltaic module, characterized in that, The photovoltaic module includes a multi-level waterproof horizontal frame and a laminate as described in any one of claims 1 to 7; the edge of the laminate is fixed in the first mounting groove (104) or the second mounting groove (204) of the horizontal frame.

9. A photovoltaic module installation system, characterized in that, The photovoltaic module of claim 8 includes at least two parts; the upper and lower edges of the corresponding horizontal frames of two adjacent photovoltaic modules are spliced ​​together by overlapping and clamping.

10. The photovoltaic module installation system according to claim 9, characterized in that, Also includes: support; The photovoltaic module is installed on the bracket, so that the plane where the first top plate (102) is located is tilted downward; the angle between the plane where the first top plate (102) is located and the horizontal plane is 5° to 60°.

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