Photovoltaic sunlight shed

Abstract

The invention discloses a photovoltaic sunlight shed, and relates to the technical field of sunlight sheds, the photovoltaic sunlight shed comprises a ceiling structure, a photovoltaic structure and a drainage structure, the ceiling structure comprises a plurality of cross beams and a plurality of longitudinal beams, and the cross beams and the longitudinal beams are spliced; the upper end faces of at least part of the cross beams and at least part of the longitudinal beams are flush to jointly form at least one bearing plane, and the bearing planes are obliquely arranged in the vertical direction; the photovoltaic structure comprises a plurality of photovoltaic panels laid on the bearing plane, and the side walls of every two adjacent photovoltaic panels are attached to each other; the drainage structure comprises at least one groove body, the groove body is located on the side of the ceiling structure, the edge of one side of the groove body is fixed to the cross beam or the longitudinal beam, the groove body is provided with a drainage groove which is open upwards, and the drainage groove is connected with the lower end of the bearing plane. Compared with a four-stage drainage mode of a traditional photovoltaic sunshine shed, the structure that multiple stages of water guide grooves are in lap joint in the transverse direction and the longitudinal direction is omitted, the drainage system mode is simplified, material types are reduced, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sun sheds, in particular to a photovoltaic sun shed. Background Art

[0002] The existing distributed photovoltaic business is mainly based on photovoltaic sun sheds and photovoltaic building integration application scenarios. In the process of photovoltaic module installation, waterproofing measures are an important link and difficulty. Based on the drainage of connected photovoltaic modules and the waterproofing of the edge of the ceiling, the existing photovoltaic sun sheds are generally designed with a four-level waterproof structure to form a drainage system. The fourth level of drainage is to use the water trough bracket and the inclined beam to weld the inclined beam at the north-south slope to form an installation position for installing the water guide trough. This installation method not only increases the types of materials and construction procedures, but also affects the overall appearance, resulting in certain limitations in application scenarios. Summary of the invention

[0003] The main purpose of the present invention is to provide a photovoltaic sun shed, which simplifies the drainage structure while meeting the drainage function, reduces construction costs, and expands the scope of application scenarios.

[0004] To achieve the above object, the present invention provides a photovoltaic sun shed, comprising:

[0005] The ceiling structure comprises a plurality of cross beams and a plurality of longitudinal beams, wherein the plurality of cross beams and the plurality of longitudinal beams are spliced ​​and arranged so that the upper end surfaces of at least some of the cross beams and at least some of the longitudinal beams are flush to jointly form at least one supporting plane, and the supporting plane is arranged obliquely in the up-down direction;

[0006] The photovoltaic structure comprises a plurality of photovoltaic panels laid on the supporting plane, wherein the side walls of two adjacent photovoltaic panels are attached to each other; and

[0007] The drainage structure includes at least one trough body, which is located on the side of the ceiling structure. The edge of one side of the trough body is fixed to the cross beam or the longitudinal beam. The trough body has a drainage groove that is open upward and connected to the lower end of the supporting plane.

[0008] In one embodiment, there are two supporting planes, and the two supporting planes are gradually inclined downward in a direction away from each other. The two supporting planes are connected on one side, and the groove body is provided on the other side facing away from each other.

[0009] In one embodiment, the tank body comprises:

[0010] The main body is formed with the drainage groove which opens upward and is arranged through the main body along the length direction; and

[0011] The connecting portion is arranged on one side of the main body and connected to the upper edge of the main body. The connecting portion is overlapped and fixed on the end of the corresponding cross beam or the longitudinal beam.

[0012] In one embodiment, the width of the drainage groove is gradually expanded from bottom to top.

[0013] In one embodiment, the side wall of the drainage groove away from the connecting portion is arranged in a stepped manner in the vertical direction.

[0014] In one embodiment, a side wall of the drainage groove away from the connecting portion is formed with a plurality of steps arranged in sequence in the upper and lower directions, each of the steps is arranged in an arc shape and / or two adjacent steps have an arc-shaped transition.

[0015] In one embodiment, a side wall of the drainage groove away from the connecting portion is bent upward and toward a center of the drainage groove to form a bent portion.

[0016] In one embodiment, the connecting portion and the corresponding cross beam or the longitudinal beam are fixed as a whole by a plurality of fasteners, and a gap between the connecting portion and the corresponding cross beam or the longitudinal beam is filled with sealant.

[0017] In one embodiment, the drainage structure further includes two end covers, the two end covers are adapted to the cross-sectional profile of the trough body, and the two end covers are correspondingly installed on two axially opposite sides of the body to seal the drainage trough.

[0018] In one embodiment, a plurality of the trough bodies are provided, the plurality of the trough bodies are spliced ​​with each other and the plurality of the drainage grooves are interconnected, and the plurality of the trough bodies are used to be arranged around the periphery of the ceiling structure.

[0019] In one embodiment, two adjacent slot bodies are connected via a transition piece, wherein the transition piece has a transition slot with an upward opening, and the transition slot has two slot sections arranged at an angle;

[0020] The ends of the two corresponding trough bodies extend into the two trough sections so as to connect the drainage grooves of the two corresponding trough bodies through the adapter groove.

[0021] In one embodiment, the length of the overlapping portion between the trough body and the corresponding trough segment is in the range of 250 mm to 300 mm.

[0022] In one embodiment, a plurality of the adapters are provided, and the plurality of the adapters include a first adapter, and the two groove sections of the first adapter are arranged at an angle in a horizontal plane.

[0023] In one embodiment, a plurality of the transition members are provided, and the plurality of the transition members include a second transition member, and ends of two of the slot sections of the second transition member that are away from each other are inclined downward.

[0024] In one embodiment, the connection portion and the upper side of the overlapping portion of the adapter are fixed as a whole by a plurality of fasteners, and a sealant is filled between the connection portion and the overlapping portion of the adapter.

[0025] In one embodiment, the drainage structure further includes a plurality of downpipes extending in an up-and-down direction, and the upper ends of the downpipes are used to connect to the drainage groove or the adapter groove.

[0026] In the technical solution of the present invention, the upper end surfaces of the horizontal beams and the longitudinal beams are flush, so that the spliced ​​shed roof forms at least one supporting plane. When laying photovoltaic panels, two adjacent photovoltaic panels can use the horizontal beams and the longitudinal beams as the supporting body at the same time, and the joints fall on the horizontal beams or the longitudinal beams, so that seamless bonding can be achieved, so that the photovoltaic structure forms a complete plane. Only the trough body is connected at the lower side of the ceiling structure to meet the drainage needs of the entire photovoltaic structure. Compared with the four-level drainage form of the traditional photovoltaic sun shed, the structure of the horizontal and vertical overlap of the multi-level water guide trough is cancelled, the drainage system form is simplified, the material types are reduced, and the cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of an existing photovoltaic sun shed;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the middle four-stage water tank;

[0030] Figure 3 for Figure 1 Structural schematic diagram of the middle edge sealing structure;

[0031] Figure 4 A schematic structural diagram of an embodiment of a photovoltaic sun shed provided by the present invention;

[0032] Figure 5 for Figure 4 The formal schematic diagram of the photovoltaic sun shed;

[0033] Figure 6 for Figure 4 A schematic structural diagram of a first embodiment of a middle tank body;

[0034] Figure 7 for Figure 6 An exploded schematic diagram of the cooperation between the middle tank body and the end cover;

[0035] Figure 8 for Figure 4 A schematic structural diagram of a second embodiment of a middle tank body;

[0036] Fig. 9 for Figure 8 An exploded schematic diagram of the cooperation between the middle tank body and the end cover;

[0037] Fig.10 for Figure 4 A schematic structural diagram of the first adapter;

[0038] Fig.11 for Fig.10 A schematic diagram of the structure of the intermediate connecting piece and the tank body;

[0039] Fig.12 for Figure 4 A schematic diagram of the structure of the second adapter;

[0040] Fig.13 for Fig.12 Schematic diagram of the structure of the intermediate connecting piece and the slot body.

[0041] Description of Figure Numbers:

[0042] 100. Photovoltaic sun shed; 1. Roof structure; 11. Crossbeam; 12. Longitudinal beam; 1a. Supporting plane; 3. Drainage structure; 31. Tank body; 311. Main body; 312. Connecting part; 313. Bending part; 32. End cover; 33. Adapter; 331. Adapter trough; 33a. First adapter; 33b. Second adapter; 34. Downpipe;

[0043] 1', ceiling structure; 11', cross beam; 12', longitudinal beam; 2', photovoltaic structure; 3', drainage structure; 31', primary water tank; 32', secondary water tank; 33', tertiary water tank; 34', quaternary water tank; 35', water tank bracket; 36', edge sealing structure.

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] It should be noted that if a directional indication is involved in the embodiment of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Please refer to Figures 1 to 3 In the existing photovoltaic sun shed structure, the roof structure 1' has two opposite first sides and two second sides. The longitudinal beam 12' serves as the foundation of the roof structure 1', and the cross beam 11' (purlin) is overlapped on the top of the longitudinal beam 12' (diagonal beam), that is, there is a height difference between the two, and the lower end surface of the cross beam 11' fits the upper end surface of the longitudinal beam 12'. The cross beam 11' serves as the support of the photovoltaic structure 2', and the photovoltaic structure 2' is laid on a plane composed of multiple cross beams 11'. Based on this structural form, there is a joint between two adjacent photovoltaic panels, and the joint is suspended, so it is not easy to glue. In view of the leakage of the joint when it rains, when the drainage structure 3' is set, first set a drainage structure under the joint of the photovoltaic panel on the first side. The first-level water tank 31' is overlapped on the crossbeam 11'. Considering that the first-level water tank 31' is spliced ​​by multiple base materials, the splicing gap of the two base materials also has the problem of hanging. Therefore, a second-level water tank 32' is set under the joint of the first-level water tank 31'. The second-level water tank 32 is overlapped on the longitudinal beam 12' and is flush with the crossbeam 11'. Similarly, a third-level water tank 33' is set. The third-level water tank 33' is below the longitudinal beam 12'. A fourth-level water tank 34' is set at the inclined end of the entire ceiling structure 1'. It is necessary to make the water in the first-level water tank 31' and the third-level water tank 33' be able to be introduced into the fourth-level water tank 34'. Thus, a four-level drainage system is formed.

[0049] Please refer to Figure 2 The four-stage water tank 34' is supported and installed by an L-shaped water tank bracket 35'. Figure 3 Some users have put forward appearance requirements, so it is necessary to perform edge sealing on the two second sides of the ceiling structure 1'. Considering that in the overall structure, the sink bracket 35' on the first side is fixedly installed based on the longitudinal beam 12', if the sink bracket 35' on the second side is to be set, it can only be fixedly installed based on the cross beam 11', and there is a height difference between the cross beam 11' and the longitudinal beam 12'. Therefore, if sinks are set on both the first side and the second side, there is a height difference between the sinks on both sides, and it is difficult to connect. Therefore, the existing edge sealing structure 36' is only decorative and has no drainage function.

[0050] In view of this, the present invention provides a photovoltaic sun shed, which abandons the existing four-level drainage system and only sets one level of drainage to meet the drainage function, thereby reducing construction costs and expanding the scope of application scenarios.

[0051] Please refer to Figures 4 to 5 The photovoltaic sun shed 100 includes a roof structure 1, a photovoltaic structure and a drainage structure 3. The roof structure 1 includes a plurality of cross beams 11 and a plurality of longitudinal beams 12. The plurality of cross beams 11 and the plurality of longitudinal beams 12 are spliced ​​so that the upper end surfaces of at least part of the cross beams 11 and at least part of the longitudinal beams 12 are flush to jointly form at least one supporting plane 1a. The supporting plane 1a is inclined in the up and down directions. The photovoltaic structure includes a plurality of photovoltaic panels laid on the supporting plane 1a, and the side walls of two adjacent photovoltaic panels are fitted together. The drainage structure 3 includes at least one trough body 31. The trough body 31 is located on the side of the roof structure 1. The edge of one side of the trough body 31 is fixed to the cross beam 11 or the longitudinal beam 12. The trough body 31 has a drainage groove that is open upward, and the drainage groove is connected to the lower end of the supporting plane 1a.

[0052] In the technical solution of the present invention, the upper end surfaces of the horizontal beams 11 and the longitudinal beams 12 are flush, so that the spliced ​​roof forms at least one supporting plane 1a. When laying photovoltaic panels, two adjacent photovoltaic panels can use the horizontal beams 11 and the longitudinal beams 12 as the supporting bodies at the same time, and the joints fall on the horizontal beams 11 or the longitudinal beams 12, so that seamless fitting can be achieved, so that the photovoltaic structure forms a complete plane, and only the trough body 31 is connected at the lower side of the ceiling structure 1 to meet the drainage needs of the entire photovoltaic structure. Compared with the four-level drainage form of the traditional photovoltaic sun shed, the structure of the horizontal and vertical overlap of the multi-level water guide trough is cancelled, the drainage system form is simplified, the types of materials are reduced, and the cost is reduced.

[0053] It should be noted that the overlap form of the cross beam 11 and the longitudinal beam 12 is not limited. For example, multiple longitudinal beams 12 are laid flat, each longitudinal beam 12 is tilted, and each cross beam 11 is formed by multiple substrate segments, each substrate segment is embedded between two adjacent longitudinal beams 12, so that the upper end surfaces of the cross beam 11 and the longitudinal beam 12 are flush. For another example, by reasonably selecting the material of the cross beam 11, the local deformation of the cross beam 11 is formed into a depression, so that it can be buckled on the outside of the longitudinal beam 12, so that the remaining part of the cross beam 11 is flush with the longitudinal beam 12, and the overlapped part is stacked with a thinner layer on the surface of the longitudinal beam 12, so that the splicing of the photovoltaic panel can be minimized. For another example, each cross beam 11 and each longitudinal beam 12 are cross-plugged, and finally the upper end surfaces of the cross beam 11 and the longitudinal beam 12 are flush.

[0054] It should be understood that based on the flush setting of the cross beam 11 and the longitudinal beam 12, when multiple photovoltaic panels are laid, the cross beam 11 and the longitudinal beam 12 simultaneously play the function of supporting the photovoltaic panels, and the seams of adjacent photovoltaic panels can be placed on the cross beam 11 or the longitudinal beam 12, thereby achieving seamless bonding by filling with glue.

[0055] The spacings between the multiple cross beams 11 may be the same or different, and the spacings between the multiple longitudinal beams 12 may be the same or different, and the present invention does not impose any limitation on this.

[0056] The ceiling structure 1 can be a single supporting plane 1a. In this case, the ceiling is in a "\" shape. The water flow is directed along the inclined direction of the supporting plane 1a. Therefore, only one trough 31 can be set at the rear end of the supporting plane 1a. In some embodiments, please refer to Figure 5 There are two supporting planes 1a, which are connected on one side and gradually inclined downward in the direction away from each other on the other side away from each other. At this time, the ceiling is in a "︿" shape. Considering the drainage situation, a groove body 31 is provided on the other side of the two supporting planes 1a facing away from each other.

[0057] It should be noted that the drainage groove of the groove body 31 can be through-going or blocked at both ends.

[0058] In one embodiment, please refer to Figures 6 to 8The trough body 31 includes a main body 311 and a connecting portion 312. The main body 311 is formed with a drainage trough with an opening facing upward and penetrating along its length. The connecting portion 312 is arranged on one side of the main body 311 and connected to the upper edge of the main body 311. The connecting portion 312 overlaps and is fixed to the end of the corresponding crossbeam 11 or longitudinal beam 12. In this structure, the drainage trough is a structure with two ends penetrating, and the water flow can flow out from the two ends of the drainage trough after being collected in the drainage trough. Due to the flush arrangement of the crossbeam 11 and the longitudinal beam 12, the installation of the trough body 31 is no longer limited by the collection requirements and installation height requirements of multi-level drainage, but can be directly fixed to the crossbeam 11 or the longitudinal beam 12 according to the horizontal and vertical orientations of the connecting portion 312. Compared with the traditional solution, there is no need to weld additional trough brackets, which reduces the types of materials and construction procedures, and realizes photovoltaic building integration to a greater extent.

[0059] The connection part 312 is integrally formed with the body 311, that is, a flange can be processed on the corresponding side of the body 311 to form the connection part 312. The length of the connection part 312 can be consistent with the length of the body 311, and the connection part 312 can also be composed of a plurality of narrow flanges arranged at intervals.

[0060] Regarding the connection method between the trough body 31 and the ceiling structure 1, in this embodiment, the connection part 312 and the corresponding cross beam 11 or longitudinal beam 12 are fixed as a whole by multiple fasteners, and the gap between the connection part 312 and the corresponding cross beam 11 or longitudinal beam 12 is filled with sealant. That is, the purpose of double fastening is achieved by forming a combination of fasteners and sealant. Considering the fastening of the connection, self-tapping screws with specifications above ST5.5X25 can be selected as fasteners, and weather-resistant sealant can be used as sealant.

[0061] It should be understood, however, that the number of fasteners at each connection position should be set to at least three. Taking the cooperation between the slot body 31 and the longitudinal beam 12 as an example, the corresponding part of the slot body 31 is locked on one of the longitudinal beams 12 by three fasteners.

[0062] Furthermore, the width of the drainage groove is gradually expanded from bottom to top, that is, the opening size of the drainage groove is changed, so as to better receive the water diverted from the surface of the photovoltaic structure.

[0063] The present invention does not limit the form of realizing the size change of the drainage groove, and the two opposite side walls of the drainage groove can be set to be inclined in the direction away from each other. Considering that the groove body 31 is directly connected to the cross beam 11 or the longitudinal beam 12, the side of the groove body 31 may abut against the end of the cross beam 11 or the longitudinal beam 12. Therefore, only the side wall of the drainage groove away from the connecting portion 312 can be set to be inclined in the vertical direction.

[0064] Please refer to Figure 8The side wall of the drainage groove away from the connection portion 312 is arranged in a stepped manner in the vertical direction. Figure 6 The side wall of the drainage groove away from the connecting portion 312 is formed with a plurality of steps arranged in sequence in the upper and lower directions, each step is arranged in an arc shape and / or two adjacent steps are transitioned in an arc shape. At this time, the wall surface corresponding to the drainage groove is wavy as a whole, so that the transition is smoother and easier to process.

[0065] Furthermore, the side wall of the drain groove away from the connecting portion 312 is bent upward and toward the center of the drain groove to form a bent portion 313. The bent portion 313 is arranged to protrude upward from the drain groove, and in the process of receiving water, the bent portion 313 can play a certain blocking role. Specifically, when the water flows down quickly, it may cause splashing water, and the existence of the bent portion 313 can effectively block these splashing water droplets. This design not only improves the drainage efficiency, but also reduces the impact of the splashes on the surrounding environment. As for the structural form of the bent portion 313, there is no strict restriction. It can be flexibly designed into an inverted L shape or an inverted U shape. Such design diversity enables the bent portion 313 to better adapt to different usage scenarios and needs, while also improving the overall structural strength of the trough body 31.

[0066] Please refer to Figure 7 and Fig. 9 The drainage structure 3 also includes two end caps 32, which are adapted to the cross-sectional profile of the trough body 31. The two end caps 32 are correspondingly installed on the two axially opposite sides of the body 311 to block the drainage groove. The end caps 32 can be buckled on the ends of the body 311 through the shape adaptation to achieve the blocking of the drainage groove. At this time, the water in the drainage groove is discharged by adding a downpipe 34. The setting of the end caps 32 can not only significantly improve the overall aesthetics, but also effectively prevent water from splashing out from the entrance side of the sun shed, thereby enhancing the safety and comfort during use.

[0067] According to different needs of users, it may be necessary to perform edge sealing on the periphery of the ceiling structure 1. In this embodiment, a plurality of groove bodies 31 may be provided, and the plurality of groove bodies 31 are spliced ​​with each other and the plurality of drainage grooves are interconnected. The plurality of groove bodies 31 are used to be arranged around the periphery of the ceiling structure 1. The drainage grooves may be arranged as through grooves to facilitate interconnection. Please refer to Figure 1 In this embodiment, a plurality of grooves 31 are spliced ​​together to form an annular groove structure surrounding the circumference of the ceiling structure 1. Specifically, the grooves 31 on both sides in the horizontal direction are connected and fixed to the ends of the cross beam 11, and the grooves 31 on both sides in the longitudinal direction are connected and fixed to the ends of the longitudinal beam 12. Since the cross beam 11 and the longitudinal beam 12 are arranged flush, there is no height difference at the connection point of the grooves 31 on different sides after installation, so that the drainage structure 3 can achieve drainage of the circumference of the ceiling structure 1.

[0068] In order to realize the splicing between adjacent trough bodies 31, in some embodiments, two adjacent trough bodies 31 are connected by an adapter 33, and the adapter 33 has an adapter groove 331 with an opening facing upward, and the adapter groove 331 has two groove sections arranged at an angle, and the ends of the two corresponding trough bodies 31 extend into the two groove sections, so as to connect the drainage grooves of the two corresponding trough bodies 31 through the adapter groove 331. The angle setting of the two groove sections can adapt to the orientation of the two adjacent trough bodies 31, and the distance between the two adjacent trough bodies 31 is made up by the adapter groove 331, so as to realize the conductive connection.

[0069] It should be understood that, according to the number of the slot bodies 31 , a plurality of adapter slots 331 should be provided.

[0070] In some implementations, see Figure 10 to Figure 11 , the adapter 33 at the corner of the corresponding ceiling structure 1 is the first adapter 33a, and the adapter groove 331 in the first adapter 33a includes two first groove sections arranged at an angle in the horizontal plane and an arc-shaped transition groove section connecting the two first groove sections, so as to achieve the diversion cooperation of the two groove bodies 31 connected in the horizontal and vertical directions. At this time, the first groove section and the second groove section correspond to the two groove sections for the groove body 31 to be inserted and matched.

[0071] In some embodiments, please refer to Figure 12 to Figure 13 When the ceiling structure 1 includes two supporting planes 1a arranged at an angle, the adapter 33 corresponding to the joint of the two supporting planes 1a is a second adapter 33b, and the second adapter 33b includes two second slot sections, and the ends of the two second slot sections away from each other are tilted downward, so as to adapt to the tilt amplitude of each supporting plane 1a. At this time, the two second slot sections correspond to two slot sections for the slot body 31 to be inserted and matched. When the drainage is set on this side of the ceiling structure 1, each slot body 31 is placed at an angle, so as to correspond to the supporting plane 1a. The second adapter 33b is set to adapt to the two slot bodies 31 with different tilt directions, so as to complete the diversion coordination at the ridge.

[0072] Based on the above embodiments, the design of the bending portion 313 is conducive to enhancing the overlap strength when multiple slots 31 are connected through the adapter. It should be understood that the adapter 33 should at least be consistent with the main body 311 and the connecting portion 312 in appearance, and the adapter 33 can be bent corresponding to the bending portion 313 or not.

[0073] In order to prevent water leakage after the trough body 31 is connected through the adapter 33, in the embodiment, the upper side of the joint of the connecting part 312 and the adapter 33 is fixed as a whole by a plurality of fasteners, and the gap between the overlapping part of the connecting part 312 and the adapter 33 is filled with sealant. That is, the sealing and connection strength are guaranteed by combining the fastening of fasteners and the filling of sealant. When assembling the structure, it is recommended to use self-tapping screws of ST5.5X25 model or higher specifications as screw-on parts to ensure the firmness of the connection and the stability of the structure. These self-tapping screws can effectively penetrate the material and form threads due to their good self-drilling ability, thereby achieving a reliable connection. At the same time, in order to ensure the durability and moisture-proof performance of the connection part, it is recommended to use a sealant with good weather resistance for sealing. Weather-resistant sealant has excellent UV resistance and temperature change resistance, can adapt to various harsh external environments, and effectively extend the service life of the structure.

[0074] It should be noted that the fasteners should correspond to the side walls of the gutter and be located on the upper side of the fitting. This is because if the fasteners are set too low, gaps may be created due to screw installation, thereby increasing the risk of water leakage.

[0075] Furthermore, the length of the overlapping part where the corresponding slot segment is connected to the slot body 31 is in the range of 250mm to 300mm, that is, the length of the slot body 31 extending into the corresponding slot segment is in the range of 250mm to 300mm, thereby ensuring the connection strength and waterproof performance. The overlapping design within this length range not only ensures a firm connection between the adapter 33 and the slot body 31, but also effectively blocks the penetration of moisture. Through careful calculations and experimental verification, we found that an overlapping length of 250mm to 300mm can minimize the use of materials and reduce costs while ensuring structural strength. In addition, this design also takes into account the convenience of installation, allowing construction workers to quickly complete the assembly work and improve work efficiency. Therefore, the setting of this overlapping length is the optimal solution obtained after considering many factors.

[0076] In order to guide the water in the drainage groove to the ground, the drainage structure 3 also includes a plurality of downpipes 34 extending in the up-down direction, and the upper end of the downpipe 34 is used to connect the drainage groove or the adapter groove 331. Specifically, a downpipe 34 should be provided at each adapter groove 331 to avoid water accumulation. In the horizontal or vertical direction, a plurality of downpipes 34 can be reasonably provided according to the size of the roof structure 1 and the size of the drainage groove, and the plurality of downpipes 34 are arranged at intervals to correspond to different drainage grooves.

[0077] When discussing the structural design of the downpipe 34, we should note that in order to ensure that the water flow can be smoothly guided and discharged, the downpipe 34 needs to be designed in an inclined shape. This inclined setting helps the water flow to flow naturally along the inner wall of the downpipe 34, thereby effectively preventing the problem of water accumulation and blockage. Through such a design, the downpipe 34 can better play its diversion function, ensuring that rainwater or other liquids can be quickly guided from high places to low places, thereby achieving the purpose of drainage.

[0078] In addition, the material of the trough body 31 and the adapter 33 can be AL6063-T5 and above aluminum alloy, or S350GD-ZM275 galvanized aluminum-magnesium material, thereby saving costs while ensuring strength requirements.

[0079] Based on the ceiling structure 1 in which two supporting planes 1a are arranged at an angle, several different arrangements of the drainage structure 3 are described below through several embodiments.

[0080] Embodiment 1

[0081] Only two troughs 31 are arranged on the two sides of the two supporting planes 1a away from each other. The connection part 312 of each trough 31 is overlapped and fixed to the ends of multiple longitudinal beams 12. Each longitudinal beam 12 is fixed with ST5.5x25 dovetail self-tapping screws, and glue is applied at the connection part 312 to further improve the sealing and waterproof performance. The drainage grooves of each trough 31 are arranged through, and each trough 31 is connected to multiple downpipes 34.

[0082] Embodiment 2

[0083] Compared with the first embodiment, end covers 32 are provided at opposite ends of each groove body 31 to seal the drainage groove.

[0084] Embodiment 3

[0085] The photovoltaic sun shed adopts a design of sealing edges all around, that is, multiple grooves 31 are arranged on the periphery of the roof structure 1. At the corresponding ridge, two grooves 31 with different inclination directions are connected through the second adapter 33b, and at the corresponding corner, two grooves 31 with different orientations are connected through the first adapter 33a. The adapter grooves 331 of each first adapter 33a are connected to the downpipe 34, that is, a total of 4 downpipes 34 are arranged.

[0086] In the technical solution of the present invention, the trough body 31 is directly fixed to the sun shed without the need for additional welding brackets, which reduces the types of materials and construction procedures, and realizes the integration of photovoltaic buildings to a greater extent. The horizontal beam 11 and the longitudinal beam 12 on the same side are arranged flush, so that the surrounding of the ceiling structure 1 is sealed with drainage grooves on all sides. At the same time, the trough body 31 is shaped to adapt to a larger drainage volume, compatible with a certain degree of water drop splashing, and at the same time take into account a certain aesthetics. After the overall installation, the appearance is more coordinated and unified, meeting the needs of more customers and having a wider range of application scenarios. The overall structure only uses one-level waterproofing to achieve drainage of the entire photovoltaic system. Compared with the four-level drainage form of the traditional photovoltaic sun shed, the use of the longitudinal first-level water tank, the transverse second-level water tank, and the longitudinal third-level water tank are cancelled, which simplifies the drainage system form, reduces the types of materials, and reduces costs.

[0087] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A photovoltaic sun shed, characterized in that: include: The ceiling structure comprises a plurality of cross beams and a plurality of longitudinal beams, wherein the plurality of cross beams and the plurality of longitudinal beams are spliced ​​and arranged so that the upper end surfaces of at least some of the cross beams and at least some of the longitudinal beams are flush to jointly form at least one supporting plane, and the supporting plane is arranged obliquely in the up-down direction; The photovoltaic structure comprises a plurality of photovoltaic panels laid on the supporting plane, wherein the side walls of two adjacent photovoltaic panels are attached to each other; and The drainage structure includes at least one trough body, which is located on the side of the ceiling structure. The edge of one side of the trough body is fixed to the cross beam or the longitudinal beam. The trough body has a drainage groove that is open upward and connected to the lower end of the supporting plane.

2. The photovoltaic sun shed according to claim 1, characterized in that: There are two supporting planes, and the two supporting planes are gradually inclined downward in a direction away from each other. The two supporting planes are connected on one side, and the groove body is arranged on the other side facing away from each other.

3. The photovoltaic sun shed according to claim 1, characterized in that: The tank body comprises: The main body is formed with the drainage groove which opens upward and is arranged through the main body along the length direction; and The connecting portion is arranged on one side of the main body and connected to the upper edge of the main body. The connecting portion is overlapped and fixed on the end of the corresponding cross beam or the longitudinal beam.

4. The photovoltaic sun shed according to claim 3, characterized in that: The width of the drainage groove is gradually expanded from bottom to top.

5. The photovoltaic sun shed according to claim 4, characterized in that: The side wall of the drainage groove away from the connecting portion is arranged in a stepped manner in the vertical direction.

6. The photovoltaic sun shed according to claim 5, characterized in that: A plurality of steps arranged in sequence in the vertical direction are formed on the side wall of the drainage groove away from the connecting portion, and each of the steps is arranged in an arc shape and / or two adjacent steps have an arc-shaped transition.

7. The photovoltaic sun shed according to claim 3, characterized in that: The side wall of the drainage groove away from the connecting portion is bent upward and toward the center of the drainage groove to form a bent portion.

8. The photovoltaic sun shed according to claim 3, characterized in that: The connecting portion and the corresponding cross beam or longitudinal beam are fixed as a whole through a plurality of fasteners, and a gap between the connecting portion and the corresponding cross beam or longitudinal beam is filled with sealant.

9. The photovoltaic sun shed according to any one of claims 3 to 8, characterized in that: The drainage structure further includes two end covers, which are adapted to the cross-sectional profile of the trough body and are correspondingly mounted on two axially opposite sides of the body to seal the drainage trough.

10. The photovoltaic sun shed according to any one of claims 1 to 8, characterized in that: The trough bodies are provided in plurality, the trough bodies are spliced ​​with each other and the drainage grooves are interconnected, and the trough bodies are used to be arranged around the periphery of the ceiling structure.

11. The photovoltaic sun shed according to claim 10, characterized in that: Two adjacent slot bodies are connected via a transition piece, wherein the transition piece has a transition slot with an upward opening, and the transition slot has two slot sections arranged at an angle; The ends of the two corresponding trough bodies extend into the two trough sections so as to connect the drainage grooves of the two corresponding trough bodies through the adapter groove.

12. The photovoltaic sun shed according to claim 11, characterized in that: The length of the overlapping portion between the trough body and the corresponding trough section is in the range of 250 mm to 300 mm.

13. The photovoltaic sun shed according to claim 11, characterized in that: There are multiple adapters, and the multiple adapters include a first adapter, and the two groove sections of the first adapter are arranged at an angle in a horizontal plane.

14. The photovoltaic sun shed according to claim 10, characterized in that: A plurality of the transition pieces are provided, and the plurality of the transition pieces include a second transition piece, and ends of the two slot sections of the second transition piece are arranged to be inclined downward away from each other.

15. The photovoltaic sun shed according to claim 11, characterized in that: The upper side of the overlapping portion of the connecting portion and the adapter is fixed as a whole by a plurality of fasteners, and the overlapping portion of the connecting portion and the adapter is filled with sealant.

16. The photovoltaic sun shed according to claim 11, characterized in that: The drainage structure further includes a plurality of downpipes extending in the up-down direction, and the upper ends of the downpipes are used to be connected to the drainage groove or the adapter groove.

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