Waterproof structure of roof photovoltaic power station

Abstract

The utility model discloses a roof photovoltaic power station waterproof structure comprising photovoltaic assemblies and an installation beam, at least two photovoltaic assemblies are installed on the installation beam side by side, each photovoltaic assembly is provided with a frame, the installation beam is connected with a pressing plate assembly, the pressing plate assembly is matched with the frame, and the photovoltaic assemblies are fixed on the installation beam. The waterproof structure also comprises a waterproof sealing member inserted into a gap between two adjacent photovoltaic modules, and a waterproof sealing matching surface for occlusion sealing is arranged between the waterproof sealing member and the B surface of the photovoltaic module frame. During on-site installation, after the photovoltaic modules are installed in place, the waterproof sealing member is inserted into the gap between the two adjacent photovoltaic modules, so that the waterproof sealing member is matched with the waterproof sealing matching surface between the B surfaces of the photovoltaic module frames to realize waterproof sealing, thereby realizing waterproof, reliable sealing and convenient construction at the gap between the two photovoltaic modules.

Description

[Technical field]

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a waterproof structure of a roof photovoltaic power station. [Background technology]

[0002] The existing waterproofing methods for photovoltaic power stations include adding water guide grooves or filling silicone weatherproof sealant in the gaps between components. The method of adding water guide grooves will increase the cost of the power station and add several construction processes, which will extend the completion time of the power station. In addition, improper installation of the water guide groove will cause the risk of rain leakage, and dust collection over time will also affect the waterproofing effect. The method of filling silicone weatherproof sealant cannot be constructed on the components and can only be completed under the truss. The construction is difficult and the sealing effect will be reduced over time. There is also the risk of rain leakage, which cannot fundamentally solve the problem.

[0003] Currently, there is a solution of installing a waterproof cover plate at the gap between components, but the waterproof cover plate has the defects of unreliable sealing and easy to leak rain. [Utility Model Content]

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a waterproof structure for a rooftop photovoltaic power station, which solves the problem that the waterproof structure in the prior art is inconvenient to construct and has the risk of rain leakage.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A waterproof structure of a rooftop photovoltaic power station includes photovoltaic modules and mounting beams, at least two photovoltaic modules are mounted side by side on the mounting beams, the photovoltaic modules have a frame, the mounting beams are connected to a pressure plate assembly, the pressure plate assembly cooperates with the frame to fix the photovoltaic modules to the mounting beams, the waterproof structure also includes a waterproof seal inserted into the gap between two adjacent photovoltaic modules, and a waterproof sealing mating surface for bite-seal is provided between the waterproof seal and the B surface of the photovoltaic module frame.

[0007] Preferably, the waterproof sealing mating surface includes a serrated surface 1 provided on the waterproof sealing component and a serrated surface 2 provided on the B surface of the photovoltaic module frame.

[0008] Preferably, the waterproof seal is provided with an elastic part, and the serrated surface 1 on the waterproof seal is engaged with the serrated surface 2 on the surface B of the photovoltaic module frame through the elastic part.

[0009] Preferably, the elastic portion is a V-shaped portion provided at the lower part of the waterproof seal, the waterproof seal further comprises a sealing portion connected to the mouth of the V-shaped portion, and the serrated surface is provided on the sealing portion.

[0010] Preferably, the waterproof seal also includes a limiting portion connected to the upper end of the sealing portion and extending above the surface A of the photovoltaic component frame, and the limiting portion is limitedly matched with the surface A of the photovoltaic component frame.

[0011] Preferably, the waterproof seal is a sheet metal part.

[0012] Preferably, the pressing plate assembly includes a pressing plate pressed onto the C surface of the photovoltaic assembly frame and a fastener connecting the pressing plate to the mounting beam.

[0013] Preferably, the fastener is a U-bolt, which is engaged with the mounting beam and connected to the pressure plate.

[0014] Preferably, the U-shaped bolt includes a U-shaped screw rod that is engaged with the mounting beam, and the pressure plate assembly also includes a clamping plate that is pressed onto the bottom surface of the mounting beam, and fixing holes are provided on the pressure plate and the clamping plate, and the mouth of the U-shaped screw rod faces downward and the screw rod head passes through the fixing holes on the pressure plate and the clamping plate in sequence and is connected with a nut.

[0015] Preferably, the C-surface of the photovoltaic assembly frame is provided with a fixed plane, the pressing plate is provided with a pressing portion pressed on the fixed plane, and the pressing plate is provided with an upwardly protruding U-shaped portion on a side away from the pressing portion.

[0016] The utility model adopts the above technical solution and has the following beneficial effects:

[0017] 1. A waterproof seal is inserted into the gap between two adjacent photovoltaic modules. A waterproof seal mating surface for bite-seal is provided between the waterproof seal and the B surface of the photovoltaic module frame. The two interact with each other to achieve waterproof sealing.

[0018] In this way, during on-site installation, after the photovoltaic modules are installed in place, a waterproof seal is inserted into the gap between two adjacent photovoltaic modules, so that the waterproof seal matches the waterproof seal mating surface between the B surface of the photovoltaic module frame to achieve waterproof sealing, thereby achieving waterproofing in the gap between the two photovoltaic modules, and the sealing is reliable. During the construction process, no additional water guide groove is required to be installed, and no additional glue is required. Less materials are used, the construction is convenient, and the waterproof effect is ahead of the traditional method of adding water guide grooves or filling silicone weather-resistant sealant in the module gap, which reduces costs, improves the installation efficiency of the photovoltaic system, and thus speeds up the construction of the power station. It also avoids the impact on the modules during the construction of the waterproof structure in the existing technology, reduces the probability of module damage, reduces the difficulty of construction, and effectively reduces the risks of construction personnel.

[0019] 2. The waterproof sealing mating surface includes a serrated surface 1 provided on the waterproof seal and a serrated surface 2 provided on the B surface of the photovoltaic module frame. Therefore, after the serrated surface 1 and the serrated surface 2 match, on the one hand, a reliable seal is formed, and the waterproof sealing effect is enhanced compared with the existing technology, thereby preventing rainwater from entering the gap between two adjacent photovoltaic modules and causing water leakage. Moreover, the waterproof effect will not weaken with the completion time; on the other hand, it can prevent the waterproof seal and the frame from moving up and down.

[0020] 3. Since the waterproof seal is provided with an elastic part, the serrated surface 1 on the waterproof seal is engaged with the serrated surface 2 on the B surface of the photovoltaic module frame through the elastic part, thereby forming a reliable seal.

[0021] 4. After the position of the photovoltaic module is fixed, the V-shaped waterproof component is placed in place and slightly pressed before being inserted into the gap between two adjacent photovoltaic modules. On the one hand, the V-shaped part facilitates the insertion of the waterproof seal from top to bottom into the gap between two adjacent photovoltaic modules, and on the other hand, it can produce greater elasticity. After the waterproof seal is inserted downward into place, the serrated surface 1 on the sealing part is engaged with the serrated surface 2 on the B surface of the photovoltaic module frame.

[0022] 5. Since the waterproof seal is provided with a limiting portion extending above the A surface of the photovoltaic module frame, when the waterproof seal is inserted into the gap between two adjacent photovoltaic modules from top to bottom, and the limiting portion is limitedly matched with the A surface of the photovoltaic module frame, the sawtooth surface 1 and the sawtooth surface 2 overlap, and under the elastic force provided by the V-shaped portion, a completely matching sawtooth structure is formed, and the two work together to form a waterproof sealing matching surface. The installation of the waterproof seal can be completed without additional steps, thereby facilitating the installation of the waterproof seal.

[0023] 6. The waterproof seal is a sheet metal part, so it is easy to form, which not only reduces the cost but also improves the installation efficiency of the photovoltaic system.

[0024] 7. Use U-bolts as fasteners. Only one bolt is needed. The mouth of the U-bolt faces downward and the screw head passes through the fixing holes on the pressure plate and the clamping plate in turn and is connected with a nut. Due to the limited space between the mounting beam and the bottom surface of the photovoltaic module, the operation of tightening the nut is performed under the mounting beam, which is convenient for tightening compared to the operation above.

[0025] 8. A fixed plane is provided on the C side of the frame of the photovoltaic module, and a pressing plate is provided with a pressing part pressed on the fixed plane. The pressing part and the fixed plane have a large contact area. Under the tightening action of the fastener, the pressing part presses the fixed plane to prevent loosening.

[0026] 9. Since the pressing plate is provided with an upwardly protruding U-shaped portion on the side away from the pressing part, it is ensured that the pressing plate can be effectively supported on the mounting beam on the side away from the pressing part, and it is beneficial for the pressing part to press and fix the plane.

[0027] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] Figure 1 It is a structural schematic diagram of embodiment 1;

[0030] Figure 2 It is a schematic diagram of the structure when no waterproof seal is inserted into the gap between two adjacent photovoltaic modules;

[0031] Figure 3 It is a schematic diagram of the structure of the waterproof seal;

[0032] Figure 4 It is a structural schematic diagram of the second embodiment;

[0033] Figure 5 This is a schematic diagram of the structure of Embodiment 3;

[0034] Figure numerals: waterproof seal 1, V-shaped portion 11, serrated surface 1 12, limiting portion 13, frame 2, A surface 21, B surface 22, C surface 23, serrated surface 2 24, limiting edge 25, limiting groove 26, photovoltaic module 3, pressure plate 4, pressing portion 41, U-shaped portion 42, supporting portion 43, limiting pressing edge 44, mounting beam 5, U-shaped bolt 6, nut 61, clamping plate 62. [Specific implementation method]

[0035] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0036] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0037] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0040] Embodiment 1

[0041] Reference Figures 1 to 3 As shown, a waterproof structure of a rooftop photovoltaic power station includes a photovoltaic module 3 and a mounting beam 5. At least two photovoltaic modules 3 are mounted side by side on the mounting beam 5. The mounting beam is usually a horizontal beam, but can also be a longitudinal beam. The photovoltaic module has a frame 2, and the frame has an A surface 21, a B surface 22, and a C surface 23. The mounting beam 5 is connected to a pressure plate assembly, which cooperates with the frame 2 to fix the photovoltaic module 3 to the mounting beam 5.

[0042] The waterproof structure in this embodiment further comprises a waterproof seal 1 inserted into the gap between two adjacent photovoltaic modules, and a waterproof sealing mating surface for bite-seal is provided between the waterproof seal 1 and the B surface 22 of the photovoltaic module frame.

[0043] In this way, during on-site installation, after the photovoltaic modules are installed in place, a waterproof seal is inserted into the gap between two adjacent photovoltaic modules, so that the waterproof seal matches the waterproof seal mating surface between the B surface of the photovoltaic module frame to achieve waterproof sealing, thereby achieving waterproofing in the gap between the two photovoltaic modules, and the sealing is reliable. During the construction process, no additional water guide groove is required to be installed, and no additional glue is required. Less materials are used, the construction is convenient, and the waterproof effect is ahead of the traditional method of adding water guide grooves or filling silicone weather-resistant sealant in the module gap, which reduces costs, improves the installation efficiency of the photovoltaic system, and thus speeds up the construction of the power station. It also avoids the impact on the modules during the construction of the waterproof structure in the existing technology, reduces the probability of module damage, reduces the difficulty of construction, and effectively reduces the risks of construction personnel.

[0044] In this embodiment, the waterproof seal matching surface includes a serrated surface 12 provided on the waterproof seal and a serrated surface 24 provided on the B surface of the photovoltaic module frame. Therefore, after the serrated surface 1 and the serrated surface 2 match, on the one hand, a reliable seal is formed, and the waterproof seal effect is enhanced compared with the prior art, which prevents rainwater from entering the gap between two adjacent photovoltaic modules and causing water leakage, and the waterproof effect will not weaken with the completion time; on the other hand, it can prevent the waterproof seal and the frame from moving up and down.

[0045] It is understandable that the serrated surface 12 and the serrated surface 24 can also be replaced by other tooth shapes, such as a mortise and tenon structure, to form a occlusal waterproof sealing mating surface between the waterproof seal 1 and the B surface 22 of the photovoltaic module frame.

[0046] Furthermore, the waterproof seal 1 is provided with an elastic part, through which the serrated surface 1 on the waterproof seal is engaged with the serrated surface 2 on the surface B of the photovoltaic module frame, thereby forming a reliable seal.

[0047] Specifically, the elastic part is a V-shaped part 11 arranged at the lower part of the waterproof seal. The waterproof seal 1 also includes a sealing part connected to the mouth of the V-shaped part. The sealing part continues to extend upward along the direction in which the side of the V-shaped part naturally extends. The serrated surface 12 is arranged on the sealing part.

[0048] After the position of the photovoltaic module is fixed, the V-shaped waterproof seal is placed in place from top to bottom, and then slightly pressed from top to bottom and inserted into the gap between two adjacent photovoltaic modules. On the one hand, the V-shaped part facilitates the insertion of the waterproof seal into the gap between two adjacent photovoltaic modules from top to bottom, and on the other hand, it can produce greater elasticity. After the waterproof seal is inserted downward into place, the serrated surface 1 on the sealing part is engaged with the serrated surface 2 on the B surface of the photovoltaic module frame.

[0049] Furthermore, the waterproof seal 1 also includes a limiting portion 13 connected to the upper end of the sealing portion and extending above the A surface of the photovoltaic module frame, and the limiting portion 13 is limitedly matched with the A surface 21 of the photovoltaic module frame. After the waterproof seal is inserted into the gap between two adjacent photovoltaic modules from top to bottom, and the limiting portion is limitedly matched with the A surface of the photovoltaic module frame, the sawtooth surface 12 and the sawtooth surface 24 are overlapped, and under the elastic force provided by the V-shaped portion, a completely matching sawtooth structure is formed, and the two work together to form a waterproof sealing matching surface. The installation of the waterproof seal can be completed without additional steps, thereby facilitating the installation of the waterproof seal.

[0050] The waterproof seal 1 is a sheet metal part, so it is easy to shape, which not only reduces the cost but also improves the installation efficiency of the photovoltaic system.

[0051] Specifically, the pressing plate assembly includes a pressing plate 4 pressed onto the C-surface 23 of the photovoltaic assembly frame and a fastener connecting the pressing plate to the mounting beam.

[0052] In this embodiment, the fastener is a U-bolt 6, which is engaged with the mounting beam 5 and connected to the pressure plate 4. The pressure plate 4 is provided with a fixing hole, and the U-bolt 6 includes a U-shaped screw that is engaged with the mounting beam 5. The pressure plate assembly also includes a clamping plate 62 pressed on the bottom surface of the mounting beam, and the clamping plate is also provided with a fixing hole. The mouth of the U-shaped screw faces downward, and the screw head passes through the fixing holes on the pressure plate and the clamping plate in turn and is connected with a nut 61. Since the space between the mounting beam and the bottom surface of the photovoltaic module is limited, the operation of tightening the nut is performed below the mounting beam, which is convenient for tightening relative to the operation above.

[0053] As a variation, the clamping plate is not provided, the mouth of the U-shaped screw faces upward, and the screw head passes through the fixing hole on the pressing plate 4 and is connected with a nut. Furthermore, a pad is provided between the nut and the pressing plate 4. The pad can increase the effective area of ​​the fastener pressing plate, avoid loosening, and increase the reliability of fastening.

[0054] The C surface 23 of the photovoltaic module frame is provided with a fixed plane, and the pressing plate 4 is provided with a pressing portion 41 pressed on the fixed plane. The pressing portion is as wide as the pressing plate, but has a larger extension length, so that the pressing portion and the fixed plane have a larger contact area. Under the tightening action of the fastener, the pressing portion presses the fixed plane to prevent loosening.

[0055] like Figure 1 As shown, in this embodiment, the pressing plate 4 is provided with an upwardly protruding U-shaped portion 42 on the side away from the pressing portion to ensure that the pressing plate can be effectively supported on the mounting beam on the side away from the pressing portion and facilitate the pressing portion to press the fixing plane.

[0056] For the truss scheme for building across houses, the mounting beam 5 is installed on the truss, and the truss and the mounting beam are connected by welding or bolts. The truss is installed above the roof, that is, it completely spans the roof. Therefore, a photovoltaic power station can be built across houses to avoid being restricted by house quality and installation area. Of course, it can also be applied to other installation scenarios.

[0057] As an embodiment, the pressing plate 4 is a stainless steel profile, and the mounting beam 5 is a square steel or a U-shaped steel or a C-shaped steel. Compared with aluminum alloy materials, the cost is lower. It is understandable that other conventional materials and structures can also be used.

[0058] Embodiment 2

[0059] like Figure 4 As shown, on the basis of the first embodiment, a pressing and limiting structure is provided between the pressing plate 4 and the C surface 23 of the photovoltaic module frame.

[0060] Specifically, the pressing and limiting structure includes a limiting groove 26 provided on the C surface of the photovoltaic module frame, and a limiting pressing edge 44 provided on the pressing plate 4 and cooperating with the limiting groove. Among them, a limiting edge 25 is provided on the edge of the C surface of the photovoltaic module frame, so that a limiting groove 26 is formed between the limiting edge 25 and the B surface 22 of the photovoltaic module frame.

[0061] During installation, after the photovoltaic module is placed in place on the mounting beam, the pressure plate is placed so that the limiting pressure edge cooperates with the limiting groove, and then the pressure plate is fixed by fasteners so that the limiting pressure edge is pressed into the limiting groove. In addition, the pressing and limiting structure can not only press the photovoltaic module, but also play a limiting role to prevent the photovoltaic module from moving horizontally.

[0062] Embodiment 3

[0063] like Figure 5 As shown, the difference from the first embodiment is that in this embodiment, the pressing plate 4 is provided with a support portion 43 supported on the mounting beam on the side away from the pressing portion, and the U-shaped portion 42 is located between the pressing portion 41 and the support portion 43. The support portion is as wide as the pressing plate, but has a larger extension length, so the support portion 43 has a larger contact area with the mounting beam. Under the tightening action of the fastener, the pressing portion 41 and the support portion 43 cooperate, which is conducive to the pressing portion 41 pressing the fixed plane of the C side of the photovoltaic module frame.

[0064] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A waterproof structure of a rooftop photovoltaic power station, comprising a photovoltaic module and a mounting beam, at least two photovoltaic modules are mounted side by side on the mounting beam, the photovoltaic module has a frame, the mounting beam is connected to a pressure plate assembly, the pressure plate assembly cooperates with the frame to fix the photovoltaic module to the mounting beam, characterized in that: The waterproof structure also includes a waterproof seal inserted into the gap between two adjacent photovoltaic modules, and a waterproof sealing mating surface for bite-seal is provided between the waterproof seal and the B surface of the photovoltaic module frame.

2. A waterproof structure for a rooftop photovoltaic power station according to claim 1, characterized in that: The waterproof sealing matching surface includes a serrated surface 1 arranged on the waterproof sealing component and a serrated surface 2 arranged on the B surface of the photovoltaic component frame.

3. A waterproof structure for a rooftop photovoltaic power station according to claim 2, characterized in that: The waterproof seal is provided with an elastic part, through which the serrated surface 1 on the waterproof seal is engaged with the serrated surface 2 on the surface B of the photovoltaic module frame.

4. A waterproof structure for a rooftop photovoltaic power station according to claim 3, characterized in that: The elastic part is a V-shaped part arranged at the lower part of the waterproof seal, and the waterproof seal also includes a sealing part connected to the mouth of the V-shaped part, and the serrated surface is arranged on the sealing part.

5. A waterproof structure for a rooftop photovoltaic power station according to claim 4, characterized in that: The waterproof seal also includes a limiting portion connected to the upper end of the sealing portion and extending above the surface A of the photovoltaic component frame, and the limiting portion is limitedly matched with the surface A of the photovoltaic component frame.

6. A waterproof structure for a rooftop photovoltaic power station according to claim 1, characterized in that: The waterproof sealing component is a sheet metal component.

7. A waterproof structure for a rooftop photovoltaic power station according to claim 1, characterized in that: The pressing plate assembly comprises a pressing plate pressed onto the C surface of the photovoltaic assembly frame and a fastener connecting the pressing plate to the mounting beam.

8. A waterproof structure for a rooftop photovoltaic power station according to claim 7, characterized in that: The fastener is a U-shaped bolt, which is engaged with the mounting beam and connected to the pressure plate.

9. A waterproof structure for a rooftop photovoltaic power station according to claim 8, characterized in that: The U-shaped bolt includes a U-shaped screw rod that is engaged with the mounting beam, and the pressure plate assembly also includes a clamping plate that is pressed onto the bottom surface of the mounting beam. The pressure plate and the clamping plate are provided with fixing holes, the mouth of the U-shaped screw rod faces downward, and the screw rod head passes through the fixing holes on the pressure plate and the clamping plate in turn and is connected with a nut.

10. A waterproof structure for a rooftop photovoltaic power station according to claim 7, characterized in that: The C surface of the photovoltaic assembly frame is provided with a fixed plane, the pressing plate is provided with a pressing portion pressed on the fixed plane, and the pressing plate is provided with an upwardly protruding U-shaped portion on a side away from the pressing portion.

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