A building integrated photovoltaic power generation system

Abstract

The utility model discloses a kind of building integrated photovoltaic power generation systems, including at least two photovoltaic modules, cross arm body, briquetting, support, connecting piece, photovoltaic module is fixed on cross arm body by briquetting, cross arm body can be slidably set on connecting piece, connecting piece is installed in the upper end of support, support is installed on the purlin of building top.The utility model photovoltaic system, with the support plate of recess for connecting piece, can be embedded in the groove of the both sides of support plate with cross arm body, whereby the sliding of cross arm body in groove can be realized, and then the back and forth movement of photovoltaic module in horizontal direction can be realized, positioning and installation of photovoltaic module on support are facilitated, the quick installation of photovoltaic module can be realized, simultaneously with simple structure, small size, low height and other characteristics, it is favorable to reduce the amount of metal consumables, and it is convenient for processing, and cost is lower.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic system technology and relates to a building-integrated photovoltaic power generation system. Background Technology

[0002] In the application of framed photovoltaic (PV) modules, mounting blocks are typically used to install the PV modules onto brackets, which are then mounted on the purlins of the building roof to form a building-integrated photovoltaic (BIPV) or building-aspect-integrated photovoltaic (BAPV) system. In existing BIPV or BAPV systems, the brackets used can be vertically arranged main water channels or U-shaped supports, with the main water channels primarily being M-shaped. However, both M-shaped water channels and U-shaped supports are made of bent steel plates, which can deform significantly under load. For example, when the upper sides of the M-shaped water channel are subjected to inward forces from the PV modules, inward deformation occurs. This deformation poses certain risks; for instance, under frequent strong winds, the PV modules may loosen, detach, or fall, causing significant damage to the entire PV system. It can also lead to gaps between rooftop modules. The large gaps may lead to water leakage, thus failing to meet the requirements for roof installation with high waterproofing standards. In addition, when connecting the existing photovoltaic module fixing components to the M-shaped water tank, the traditional clamping block installation requires placing a clamping block between the two modules, which spans the width of one module. This makes the installation and commissioning operation difficult, time-consuming and labor-intensive, and does not improve installation efficiency. It may also cause unnecessary damage such as scratches and breakage, thereby affecting the power generation efficiency and service life of the photovoltaic panels. Furthermore, the M-shaped water tank also has problems such as high metal consumption and difficulty in effectively supporting photovoltaic modules.

[0003] To improve the stability of the main water tank or Z-shaped support, a crossbeam is configured on the M-shaped water tank or Z-shaped support. This crossbeam can form a connection reinforcement structure in the lateral direction of the M-shaped water tank or Z-shaped support. At the same time, the photovoltaic module is fixed to the crossbeam by the frame and pressure block, thereby mounting the photovoltaic module on the bracket through the crossbeam. However, the existing crossbeam structure adapted to the M-shaped water tank or Z-shaped support still has the following defects: (a1) The pressure block fixing plate, although simple in structure, has poor load performance and is prone to unstable connection, thus affecting the normal operation of the battery. Moreover, the pressure block fixing plate cannot achieve concealed installation of the pressure block, which makes it inconvenient to install the waterproof cover of the photovoltaic module; (a2) The sunken platform structure can enhance the structural strength of the crossbeam, but the thickened platform at both ends makes the metal consumption of the crossbeam still relatively large. In addition, due to the significant increase in the weight of the crossbeam, it will also (a3) The existing crossarm structure is difficult to adapt to larger water channels, and the waterproof effect of the cover plate in the drainage system is poor. Moreover, the M-shaped water channel is difficult to withstand a large drainage volume, and leakage may occur when subjected to heavy rain. (a4) The photovoltaic modules are mostly installed on the crossarm by pressing blocks using a fixed design. During the installation of photovoltaic modules, screws need to be tightened multiple times and adjustments need to be made repeatedly. This results in a complicated installation process and low installation efficiency, which makes it difficult to achieve rapid installation of photovoltaic modules.

[0004] To improve the installation efficiency of photovoltaic modules, an integrated high-speed assembly BIPV system has been proposed in the prior art. The photovoltaic panel is clamped and fixed to the support strip of the profiled metal roof using frame fasteners. (a1) During the installation process, the screws need to be tightened multiple times and the adjustments need to be repeated, which makes it difficult to effectively improve the installation efficiency. (a2) The positioning and installation of the photovoltaic panel is difficult, especially under high-altitude conditions such as roofs or facades. (a3) ​​Using frame fasteners to fix the photovoltaic panel results in a small stress surface of the photovoltaic panel. On the one hand, it is easy to damage the photovoltaic module, especially under frequent strong winds. On the other hand, it is also easy to cause insufficient locking force of the clamping block on the photovoltaic panel, especially under frequent strong winds, the photovoltaic panel is more likely to loosen and fall off. (a4) Using a single clamping block to fix the photovoltaic panel to the support strip of the profiled metal roof results in poor installation stability and is only suitable for bottom support in special scenarios. Furthermore, existing technologies propose a building-integrated photovoltaic (BIPV) support system and its installation method. This system employs prefabricated fixing to reduce installation steps, improve installation efficiency, avoid safety risks associated with high-altitude operations, and simultaneously reduce installation time and costs. Through improved connecting components and installation methods, it achieves rapid and convenient on-site assembly, reducing reliance on specialized skills and improving installation efficiency. However, the connecting components and mechanisms used in this system still have the following drawbacks: (c1) The connecting components are large and very tall, which not only easily obstructs the photovoltaic modules but also increases the amount of metal materials used, resulting in higher costs; (c2) The connecting components use toothed surfaces to fix the photovoltaic modules, which not only increases the processing difficulty of the connecting components but also provides poor fixing effect for the photovoltaic modules. In particular, when the first connecting mechanism is adjusted laterally, it will affect the photovoltaic modules. Gaps between the components and the connecting components can easily cause the photovoltaic modules to loosen, detach, and fall off; (c3) The first connecting mechanism includes a U-shaped connector, in which a connecting block is connected by a rod and a reinforcing rod. There are mounting screws running through both sides of the U-shaped connector in the horizontal direction. Obviously, the first connecting mechanism has the disadvantages of complex structure, large size, and very high height. It will not only increase the processing difficulty of materials, but also significantly increase the amount of metal materials used, resulting in higher costs; (c4) Since both the connecting components and the first connecting mechanism have the characteristics of large size and high height, the photovoltaic modules are installed on the support by stacking them up and down, resulting in a very high height of the entire system. It will also significantly increase the support load of the support, which is not conducive to improving the stability of the photovoltaic system on the top of the building. Especially in the environment of frequent strong winds, the safety risk is significantly increased.

[0005] At the same time, in existing BIPV or BAPV systems, the frames of photovoltaic modules still have defects such as complex structure, large amount of metal consumables, difficult installation, low installation efficiency, high cost, difficult transportation, and poor waterproof effect, which also limits the widespread application of BIPV or BAPV systems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a building-integrated photovoltaic power generation system and its installation method that is easy to install quickly, has good water-proof effect, and low cost.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A building-integrated photovoltaic (BIPV) power generation system includes at least two photovoltaic modules, a crossarm body, a pressure block, a bracket, and connectors. The photovoltaic modules are fixed to the crossarm body by the pressure block. The crossarm body is slidably mounted on the connectors. The connectors are installed on the upper end of the brackets. The brackets are installed on the purlins at the top of the building. The connector includes a support plate mounted on the bracket. The two sides of the support plate are bent upward to form upper folding plates. A groove is formed between the support plate and the upper folding plates to accommodate the crossarm body. The crossarm body is fitted into the grooves on both sides of the support plate, so that the crossarm body can slide between the grooves on both sides of the support plate.

[0008] As a further improvement to the above technical solution: the distance between the grooves on both sides of the support plate is greater than the length of the crossarm body, and the distance between the upper folding plates on both sides of the support plate is less than the length of the crossarm body.

[0009] As a further improvement to the above technical solution: the support plate has a waist-shaped hole in the middle; the support plate also has several fourth matching holes, and the connector is installed on the bracket by bolts; the fourth matching holes are located around the support plate.

[0010] As a further improvement to the above technical solution: the photovoltaic module includes a long frame, the long frame includes a body, the body includes a first connecting cavity formed by a pair of horizontal plates and a pair of vertical plates to accommodate a reinforcement component, a bottom plate and a first top plate are respectively provided below and above the first connecting cavity, the pair of horizontal plates includes a first horizontal plate and a second horizontal plate, a first mounting groove for accommodating a laminate is formed between the first horizontal plate and the first top plate, the pair of vertical plates includes a first vertical plate and a second vertical plate, the second vertical plate extends a third vertical plate along a second direction Y, the width of the third vertical plate along a first direction X is greater than that of the second vertical plate, the end of the third vertical plate away from the second vertical plate is connected to the bottom plate; one end of the bottom plate is bent upward to form a first upper folded edge, so that the first upper folded edge is aligned with the first vertical plate; a fixing groove for accommodating a pressure block is formed between the second horizontal plate and the first upper folded edge.

[0011] As a further improvement to the above technical solution: the distance between the third vertical plate and the first upper folded edge on the base plate is the same as the length of the second horizontal plate along the first direction X; the thickness of the base plate along the second direction Y is greater than that of the second horizontal plate; the width of the third vertical plate along the first direction X is 0.8 mm to 2 mm; the length of the first upper folded edge is 2 mm to 8 mm; and the thickness of the base plate along the second direction Y is 0.8 mm to 2 mm.

[0012] As a further improvement to the above technical solution: a fourth vertical plate extends from the end of the first vertical plate away from the first upper folded edge in a direction opposite to the second direction Y, and the end of the fourth vertical plate away from the first vertical plate is connected to the first top plate; a slot is provided on the side of the first top plate near the first mounting groove.

[0013] As a further improvement to the above technical solution: the fourth vertical plate is provided with at least one protrusion or groove on the side away from the first mounting groove.

[0014] As a further improvement to the above technical solution: the fixing slots of the corresponding long frames in the two photovoltaic modules are arranged opposite to each other.

[0015] As a further improvement to the above technical solution: a waterproof cover plate is provided above the corresponding long frame of the two photovoltaic modules; two opposing snap-fit ​​plates are provided at both ends of the waterproof cover plate, and several grooves or protrusions are provided on the side of the snap-fit ​​plate near the end of the waterproof cover plate. In use, the waterproof cover plate is placed on the first top plate, so that the protrusions on the snap-fit ​​plate are snapped into the grooves of the fourth vertical plate, or the protrusions on the fourth vertical plate are snapped into the grooves of the snap-fit ​​plate; the gap between the waterproof cover plate and the first top plate is filled with waterproof adhesive strips; the waterproof cover plate is long and narrow.

[0016] As a further improvement to the above technical solution: the crossarm body includes a first support part for mounting the photovoltaic module and a first fixing part located on both sides of the first support part. The first fixing part is fitted into the grooves on both sides of the support plate. The upper surface of the first support part is provided with a first limiting protrusion, a second limiting protrusion, and a third limiting protrusion from right to left. A fourth mounting groove is formed between the first limiting protrusion and the second limiting protrusion to accommodate the long frame and the pressure block. A fifth mounting groove is formed between the second limiting protrusion and the third limiting protrusion to accommodate the long frame. As a further improvement to the above technical solution: the third limiting protrusion is inclined towards the side closer to the second limiting protrusion, so that a groove is formed between the third limiting protrusion and the first support part, and during installation, the bottom plate of the long frame is clamped in the groove; the included angle between the third limiting protrusion and the surface of the first support part is 30° to 60°.

[0017] As a further improvement to the above technical solution: the first support part is also provided with a first mounting hole for fixing the pressure block, and the first mounting hole is located in the fourth mounting groove.

[0018] As a further improvement to the above technical solution: the first support part and the first fixing part are in the same plane; the thickness of the first fixing part is greater than that of the first support part; the first fixing part is provided with a second mounting hole.

[0019] As a further improvement to the above technical solution: the photovoltaic module is fixed to the first support by a long frame and a pressure block.

[0020] As a further improvement to the above technical solution: the pressure block includes a horizontal pressure plate, the two ends of the horizontal pressure plate are bent upward to form a vertical pressure plate, the end of the vertical pressure plate away from the horizontal pressure plate is bent along the same or opposite direction as the first direction X to form a locking plate, one of the locking plates is bent downward to form a fourth lower folded edge at the end away from the vertical pressure plate, a second fixing cavity is formed between the vertical pressure plate and the fourth lower folded edge to accommodate the first upper folded edge. In use, the second fixing cavity is locked onto the first upper folded edge, and the other locking plate has a horizontal edge extending outward along the horizontal direction at the end away from the vertical pressure plate.

[0021] As a further improvement to the above technical solution: the transverse pressure plate is also provided with a first matching hole; the first matching hole is used in conjunction with the first mounting hole.

[0022] As a further improvement to the above technical solution: the bracket is M-shaped and is an integrally formed structure; the bracket includes a second support part and a second fixing part located on both sides of the second support part; the second fixing part is L-shaped; the top of the second fixing part is provided with a second matching hole, and the second matching hole and the fourth matching hole are connected by bolts to fix the connector on the bracket; the bottom of the second fixing part is provided with a third mounting hole, and the bracket is fixed on the purlin by bolts.

[0023] As a further improvement to the above technical solution: a water guide channel is also provided between the bracket and the connector, and the water guide channel is located below the crossbeam body; the water guide channel includes a U-shaped water channel and an M-shaped water channel.

[0024] As a further improvement to the above technical solution: the U-shaped water tank includes a horizontally arranged U-shaped tank body, and ear plates are provided on both sides of the U-shaped tank body; the ear plates are installed on the top of the second fixing part, so that the U-shaped water tank is fixed between the bracket and the connector; the outer side of the U-shaped tank body is in contact with the inner side of the second support part.

[0025] As a further improvement to the above technical solution: the M-shaped water tank includes a third support part and a third fixing part located on both sides of the third support part; the third fixing part is L-shaped; the top of the third fixing part is provided with a third matching hole, which is connected to the second matching hole and the fourth matching hole by bolts, so that the M-shaped water tank is fixed between the bracket and the connector; the outer side of the third support part fits against the inner side of the second support part; the bottom of the third fixing part is provided with a fourth mounting hole, and the M-shaped water tank is fixed to the bracket or the purlin by bolts.

[0026] As a further improvement to the above technical solution: the photovoltaic module includes a short frame, which includes an upper frame and a lower frame; The upper frame includes a first body, which 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 via a fifth vertical plate, forming a second mounting groove for accommodating the laminate between the second connecting cavity, the second top plate, and the fifth vertical plate. A third horizontal plate extends from the other end of the second top plate along a first direction X. The end of the third horizontal plate away from the second top plate is bent downward to form a second lower folded edge. A fourth horizontal plate extends from the end of the third horizontal plate away from the second top plate along the first direction X. The end of the fourth horizontal plate away from the second lower folded edge is bent downward to form a third lower folded edge. The lower frame includes a second body, the second body includes a third connecting cavity, a third top plate is provided above the third connecting cavity, one end of the third top plate is connected to the third connecting cavity through a sixth vertical plate and a third mounting groove for accommodating the laminate is formed between the third top plate, the sixth vertical plate and the third connecting cavity, the sixth vertical plate extends a first length D1 in the direction opposite to the first direction X and then bends upward to form a second upper folded edge, a first water groove is formed between the second upper folded edge and the sixth vertical plate.

[0027] As a further improvement to the above technical solution: when in use, the fourth horizontal plate overlaps the third top plate, and the second upper folded edge and the second lower folded edge are used in conjunction.

[0028] As a further improvement to the above technical solution: the second upper folded edge and the second lower folded edge are connected by a snap-fit ​​mechanism.

[0029] As a further improvement to the above technical solution: the second lower folded edge is provided with several grooves or protrusions on the side away from the fifth vertical plate; the second upper folded edge is provided with several grooves or protrusions on the side away from the sixth vertical plate.

[0030] As a further improvement to the above technical solution: a reinforcing cavity is provided on one side of the third connecting cavity, and the reinforcing cavity is located below the first water tank.

[0031] As a further improvement to the above technical solution: a seventh vertical plate extends along the second direction Y on the side of the reinforcing cavity away from the third connecting cavity.

[0032] As a further improvement to the above technical solution: a second water tank is formed between the sixth vertical plate, the reinforcing cavity and the seventh vertical plate.

[0033] As a further improvement to the above technical solution: the third horizontal plate is provided with a first downward folded edge at one end near the second top plate, and a first fixing cavity is formed between the fifth vertical plate, the third horizontal plate and the first downward folded edge to accommodate the seventh vertical plate; the fourth horizontal plate is inclined upward, and in use, the fourth horizontal plate overlaps the third top plate.

[0034] As a further improvement to the above technical solution: when the photovoltaic module is installed on the bracket, the plane where the second top plate is located is tilted downward; the angle between the plane where the second top plate is located and the horizontal plane is 5° to 60°.

[0035] Compared with the prior art, the advantages of this utility model are: (1) Compared with conventional connecting components, the connector used in this utility model is a support plate with grooves. By fitting the crossarm body into the grooves on both sides of the support plate, the crossarm body can slide in the grooves. After the photovoltaic module is fixed on the crossarm body by the pressure block, the photovoltaic module can move back and forth in the horizontal direction, which facilitates the positioning and installation of the photovoltaic module on the bracket and enables the quick installation of the photovoltaic module.

[0036] (2) Compared with conventional connecting components, the connectors used in this utility model have the characteristics of simple structure, small size and low height, which are conducive to reducing the amount of metal consumables, and are easy to process and have lower cost.

[0037] (3) Compared with conventional connecting components, the connector used in this utility model has a waist-shaped hole in the middle of the support plate, which can significantly reduce the number of screw tightenings during the positioning and installation of photovoltaic modules and improve installation efficiency.

[0038] (4) Compared with conventional photovoltaic modules, the photovoltaic module used in this utility model includes a long frame and a thickened third vertical plate between the connecting cavity and the base plate. By increasing the thickness of the third vertical plate, the load-bearing capacity of the frame can be strengthened, exhibiting excellent load performance. This allows the laminate to be effectively supported while reducing the volume of the connecting cavity. At the same time, the pressure block can be hidden while ensuring the load performance of the module. Furthermore, reducing the volume of the connecting cavity can also reduce the amount of material used. In addition, by reducing the volume of the connecting cavity, it is easier to stabilize the frame assembly with fasteners (such as corner brackets) on both the long and short sides, while also reducing the volume of the fasteners, which is also conducive to reducing the amount of metal consumables. Meanwhile, a thickened third vertical plate is set between the connecting cavity and the base plate. The fixing groove, with its upper folded edge aligned with the first vertical plate, serves two purposes. Firstly, by placing the fixing groove below the connecting cavity, the pressure block can be installed discreetly, allowing the waterproof cover to fit more closely to the module frame, reducing leakage. Furthermore, it does not obstruct the photovoltaic module or hinder the use of the waterproof cover. Additionally, the adjustable opening width of the fixing groove, being the same width as the connecting cavity, provides ample space for the installation of the pressure block, facilitating installation with high efficiency and minimal workload. Secondly, by aligning the upper folded edge of the fixing groove with the first vertical plate, the connecting cavity and the fixing groove are both located on the outer B-side of the frame, thus not increasing the frame length, facilitating transportation and installation, and reducing transportation costs and installation difficulty. More importantly, the combined effect of the thickened third vertical plate and the fixing groove of the same width as the connecting cavity not only meets the load performance of the photovoltaic module, but also enables the photovoltaic module to be installed quickly and discreetly. It is also convenient for transportation and easy to install the waterproof cover plate quickly. Ultimately, the photovoltaic module has the advantages of not significantly increasing metal consumables, meeting the load performance requirements, enabling discreet installation, easy installation, high installation efficiency, and low cost, and can be widely used in BIPV or BAPV systems.

[0039] (5) Compared with conventional brackets, the crossarm body used in this utility model has a first limiting protrusion, a second limiting protrusion, and a third limiting protrusion arranged sequentially from right to left on the first support part. These protrusions serve as limiting points, pressure block limiting points, and frame clamping points for the photovoltaic module frame, respectively. This allows for the rapid installation of the photovoltaic module on the crossarm body. More importantly, the pressure block is installed in the first mounting groove between the first limiting protrusion and the second limiting protrusion. This not only enables the rapid fixing of the photovoltaic module on the crossarm body, but also allows the structure of the pressure block to be selected according to the actual situation. It can be pressed onto the A side of the photovoltaic module frame or the B side of the photovoltaic module frame, making it more applicable. Furthermore, the installation process is not affected by the photovoltaic module, making installation more convenient. It also facilitates the hidden installation of the pressure block. At the same time, the structure of the crossarm body is simple and can meet the requirements of load performance. In particular, the first limiting protrusion, the second limiting protrusion, and the third limiting protrusion do not increase the amount of metal consumables used, resulting in less metal consumables and lower costs. It is evident that the crossarm body adopted in this utility model has the advantages of simple structure, convenient use, low metal consumption, load performance that meets requirements, low component installation difficulty, and low cost, and can be widely used in BIPV or BAPV systems.

[0040] (6) Compared with conventional photovoltaic modules, the photovoltaic module used in this utility model includes a short frame, including an upper frame and a lower frame. In use, the upper frame is overlapped and clamped onto the lower frame. Quick and stable installation can be achieved by pressing the clamp and locking the position. Moreover, it can create a level 6 waterproof effect. Specifically, the fourth horizontal plate is overlapped above the third 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 that enters the first water tank into the main water tank. This effectively enhances the waterproofing effect. More importantly, by using the second upper fold and the second lower fold together, a level 3 waterproofing is formed between the two folds, effectively reducing water seepage from the first water channel. Furthermore, by connecting the second upper fold and the second lower fold using a snap-fit ​​method, not only is the overlap between the upper and lower frames strengthened, improving the mechanical strength of the horizontal frame, but the level 3 waterproofing effect is also enhanced. Several grooves or protrusions are provided on the side of the second upper fold and the second lower fold that are close to each other. The raised strips can improve the installation stability of the upper and lower frames; a seventh vertical plate extends along the second direction Y on the side of the reinforcing cavity away from the third connecting cavity, and a second water trough is formed between the sixth vertical plate, the reinforcing cavity and the seventh vertical plate. As a relatively larger water trough, it can collect water dripping from the level 3 waterproofing and drain it to the main water trough, thereby achieving level 4 waterproofing; a first lower folded edge is provided at the end of the third horizontal plate near the second top plate, and a first fixing cavity that can accommodate the seventh vertical plate is formed between the fifth vertical plate, the third horizontal plate and the first lower folded edge. By using the first fixing cavity to engage the seventh vertical plate, on the one hand, the installation stability of the upper and lower frames can be improved, thereby strengthening the overall wind resistance of the photovoltaic system. On the other hand, level 5 waterproofing can be achieved, thereby effectively preventing water leakage from the second water trough from extending out, which is beneficial to improving the waterproofing effect; finally, when the photovoltaic modules are installed on the bracket, the plane where the second top plate is located is tilted downwards, which can prevent rainwater from flowing to the overlap joint, thereby creating level 6 waterproofing between two adjacent photovoltaic modules, further improving the waterproofing effect. Compared with conventional horizontal frames, the short frame used in this invention 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. Attached Figure Description

[0041] 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.

[0042] Figure 1 This is a schematic diagram of the cross-sectional structure of the building-integrated photovoltaic power generation system in this embodiment of the present invention.

[0043] Figure 2 This is a schematic diagram of the cross-sectional structure of the connector in an embodiment of this utility model.

[0044] Figure 3 This is a top view of the connector in an embodiment of this utility model.

[0045] Figure 4 This is a schematic diagram of the cross-sectional structure of the long frame in an embodiment of this utility model.

[0046] Figure 5 This is a schematic diagram of the cross-sectional structure of the waterproof cover plate in an embodiment of this utility model.

[0047] Figure 6 This is a schematic diagram of the cross-sectional structure of the crossarm body in an embodiment of this utility model.

[0048] Figure 7 This is a top view of the crossarm body in an embodiment of this utility model.

[0049] Figure 8 This is a schematic diagram of the cross-sectional structure of the pressure block in an embodiment of this utility model.

[0050] Figure 9 This is a schematic diagram of the cross-sectional structure of the bracket in an embodiment of this utility model.

[0051] Figure 10 This is a schematic diagram of the cross-sectional structure of the U-shaped water tank in an embodiment of this utility model.

[0052] Figure 11 This is a schematic diagram of the cross-sectional structure of the M-shaped water tank in an embodiment of this utility model.

[0053] Figure 12 This is a schematic diagram of the cross-sectional structure of the upper frame in an embodiment of this utility model.

[0054] Figure 13 This is a schematic diagram of the cross-sectional structure of the lower frame in an embodiment of this utility model.

[0055] Figure 14 This is a schematic diagram of the cross-sectional structure of the short frame in an embodiment of this utility model.

[0056] Figure 15 This is a diagram illustrating the overall waterproof effect of the short frame in an embodiment of this utility model.

[0057] Figure 16 This is a cross-sectional structural diagram of a building-integrated photovoltaic power generation system in another embodiment of this utility model.

[0058] Figure 17 This is a cross-sectional structural diagram of a building-integrated photovoltaic power generation system in another embodiment of this utility model.

[0059] Legend: 1. Photovoltaic module; 2. Crossarm body; 3. Pressure block; 4. Bracket; 5. U-shaped water tank; 6. M-shaped water tank; 7. Connector; 8. Purlin; 11. Long frame; 111. First connecting cavity; 112. First horizontal plate; 113. Second horizontal plate; 114. First vertical plate; 115. Second vertical plate; 116. Third vertical plate; 117. Base plate; 118. First upper folded edge; 119. Fixing groove; 1110. First top plate; 1111. First mounting groove; 1112. Fourth vertical plate; 1113. Slot; 1114. Waterproof cover plate; 1115. Connecting plate; 1116. Laminated component; 1117. Waterproof adhesive strip; 12. Short frame; 121. Second connecting cavity; 122. Second top plate; 123. Fifth vertical plate; 124. Second mounting groove; 125. Third horizontal plate; 126. First lower folded edge; 127. First fixing cavity; 128. Second lower folded edge; 1210. Fourth horizontal plate; 1211. Third lower folded edge; 1212. Third connecting cavity; 1213. Third top plate; 1214. Sixth vertical plate; 1215. Third mounting groove; 1216. Second upper folded edge; 1217. First water tank; 1218. Reinforcing cavity; 1219. Seventh vertical plate; 1220. Second water tank; 21. First support portion; 211. First limiting protrusion; 212. Second limiting protrusion; 213. Third limiting protrusion; 214. Fourth mounting groove; 215. Fifth mounting groove; 216. First mounting hole; 22. First fixing portion; 221. Second mounting hole; 31. Horizontal pressure plate; 32. Vertical pressure plate; 33. Clamping plate; 34. Fourth lower folded edge; 35. Horizontal edge; 36. Second fixing cavity; 37. First matching hole; 41. Second support part; 42. Second fixing part; 43. Second matching hole; 44. Third mounting hole; 51. U-shaped groove; 52. Ear plate; 61. Third support part; 62. Third fixing part; 63. Third matching hole; 64. Fourth mounting hole; 71. Support plate; 72. Waist-shaped hole; 73. Upper folding plate; 74. Fourth matching hole. Detailed Implementation

[0060] 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.

[0061] Example like Figures 1 to 3As shown, the photovoltaic building integrated power generation system of this embodiment includes at least two photovoltaic modules 1, a crossarm body 2, a pressure block 3, a bracket 4, and a connector 7. The photovoltaic module 1 is fixed on the crossarm body 2 by the pressure block 3. The crossarm body 2 is slidably mounted on the connector 7. The connector 7 is installed on the upper end of the bracket 4. The bracket 4 is installed on the purlin 8 on the top of the building.

[0062] like Figures 2 to 3 As shown, the connector 7 includes a support plate 71 mounted on the bracket 4. The two sides of the support plate 71 are bent upward to form an upper folding plate 73. A groove is formed between the support plate 71 and the upper folding plate 73 to accommodate the crossbeam body 2. The crossbeam body 2 is fitted into the grooves on both sides of the support plate 71, so that the crossbeam body 2 can slide between the grooves on both sides of the support plate 71.

[0063] Compared with conventional connecting components, the connector used in this utility model can achieve the following unexpected technical effects: (a) Using a support plate with grooves as the connector, the crossarm body can be fitted into the grooves on both sides of the support plate, thereby enabling the crossarm body to slide in the groove. After the photovoltaic module is fixed on the crossarm body by the pressure block, the photovoltaic module can move back and forth in the horizontal direction, which facilitates the positioning and installation of the photovoltaic module on the bracket and enables the quick installation of the photovoltaic module; (b) It has the characteristics of simple structure, small size and low height, which is conducive to reducing the amount of metal consumables, and is easy to process, resulting in lower cost.

[0064] In this embodiment, the distance between the grooves on both sides of the support plate 71 is greater than the length of the crossarm body 2, and the distance between the upper folding plates 73 on both sides of the support plate 71 is less than the length of the crossarm body 2. This ensures that the crossarm body 2 always slides between the grooves on both sides of the support plate 71.

[0065] In this embodiment, the support plate 71 is provided with a waist-shaped hole 72 in the middle, which can significantly reduce the number of screw tightenings during the positioning and installation of photovoltaic modules and improve installation efficiency. The support plate 71 is also provided with a number of fourth matching holes 74, and the connector 7 is installed on the bracket 4 by bolts. The fourth matching holes 74 are located around the support plate 71. Specifically, when the support plate 71 is a rectangular plate, the fourth matching holes 74 can be provided near the four corners of the support plate 71, but it is not limited to this.

[0066] like Figure 4As shown, in this embodiment, the photovoltaic module 1 includes a long frame 11, the long frame 11 includes a body, the body includes a first connecting cavity 111 formed by a pair of horizontal plates and a pair of vertical plates to accommodate a reinforcement component, a bottom plate 117 and a first top plate 1110 are respectively provided below and above the first connecting cavity 111, the pair of horizontal plates includes a first horizontal plate 112 and a second horizontal plate 113, a first mounting groove 1111 is formed between the first horizontal plate 112 and the first top plate 1110 to accommodate a laminate 1116, and the pair of vertical plates includes a first... The second vertical plate 114 and the second vertical plate 115 extend a third vertical plate 116 along the second direction Y. The width of the third vertical plate 116 along the first direction X is greater than that of the second vertical plate 115. The end of the third vertical plate 116 away from the second vertical plate 115 is connected to the bottom plate 117. One end of the bottom plate 117 is bent upward to form a first upper folded edge 118, so that the first upper folded edge 118 is aligned with the first vertical plate 114. A fixing groove 119 for accommodating the pressure block 3 is formed between the second horizontal plate 113 and the first upper folded edge 118.

[0067] Compared to conventional photovoltaic modules, the long frame adopted in this invention achieves the following unexpected technical effects: With the combined effect of the thickened third vertical plate and the fixing groove of equal width to the connecting cavity, it not only meets the load-bearing performance requirements of the photovoltaic module but also enables concealed and rapid installation. It also facilitates transportation and allows for quick installation of the waterproof cover. Ultimately, this results in a photovoltaic module that combines the advantages of minimal increase in metal consumables, meeting load-bearing performance requirements, enabling concealed installation, low installation difficulty, high installation efficiency, and low cost, making it widely applicable in BIPV or BAPV systems. In this embodiment, the distance between the third vertical plate 116 and the first upper folded edge 118 on the base plate 117 is the same as the length of the second horizontal plate 113 along the first direction X. This can effectively support the laminate without increasing the length of the frame, and at the same time facilitate the stable installation of the module. Meanwhile, the thickness of the base plate 117 along the second direction Y is greater than that of the second horizontal plate 113. By increasing the thickness of the bottom edge, the mechanical performance of the frame can be further improved, which is also conducive to the stable installation of the photovoltaic module on the bracket.

[0068] In this embodiment, the width of the third vertical plate 116 along the first direction X is 1mm. In other embodiments, the width of the third vertical plate along the first direction X can also be 0.8mm, 0.9mm, 1.1mm, 1.3mm, 1.5mm, 1.8mm, or 2.0mm.

[0069] In this invention, by optimizing the width of the third vertical plate along the first direction X, the following unexpected technical effects can be achieved: it can enhance the structural load-bearing capacity, thereby enabling concealed installation of the pressure block while ensuring the load-bearing capacity of the component, and reducing the cost of metal consumables. However, when the width of the third vertical plate along the first direction X is too low, it is difficult to improve the structural load-bearing capacity, especially failing to meet the 5600Pa requirement, while when the width of the third vertical plate along the first direction X is too high, it will significantly increase the cost of metal consumables.

[0070] In this embodiment, the length of the first upper folded edge 118 is 4mm. In other embodiments, the length of the first upper folded edge 118 can also be 2mm, 2.5mm, 3mm, 3.5mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, or 8mm.

[0071] In this invention, by optimizing the length of the first upper folded edge 118, the following unexpected technical effects can be achieved: it can enhance the structural load-bearing capacity, thereby enabling rapid installation of the pressure block while ensuring the load-bearing capacity of the component, and reducing the cost of metal consumables. However, when the length of the first upper folded edge 118 is too short, the installation and fixing effect of the pressure block is poor; while when the length of the first upper folded edge 118 is too long, the space for placing the pressure block is too large, which weakens the load-bearing capacity of the component and significantly increases the cost of metal consumables.

[0072] In this embodiment, the thickness of the base plate 117 along the second direction Y is 1 mm. In other embodiments, the thickness of the base plate 117 along the second direction Y can also be 0.8 mm, 0.9 mm, 1.1 mm, 1.3 mm, 1.5 mm, 1.8 mm, or 2.0 mm.

[0073] In this invention, the stability of the frame can be improved by optimizing the thickness of the base plate 117 along the second direction Y.

[0074] In this embodiment, a fourth vertical plate 1112 extends from the end of the first vertical plate 114 away from the first upper folded edge 118 in a direction opposite to the second direction Y. The end of the fourth vertical plate 1112 away from the first vertical plate 114 is connected to the first top plate 1110.

[0075] In this embodiment, the first top plate 1110 is provided with a slot 1113 on the side near the first mounting groove 1111, which can improve the buffering effect of the photovoltaic module and the bonding effect between the frame and the laminate.

[0076] In this embodiment, the fourth vertical plate 1112 is provided with at least one protrusion or groove on the side away from the first mounting groove 1111. On the one hand, the protrusion or groove can be used as a waterproof cover plate clamping point to achieve a better clamping effect with the cooperation of the fixing groove and the pressure block. This not only strengthens the stable installation of the frame, but also facilitates the effective waterproofing of the photovoltaic system. On the other hand, setting the protrusion or groove on the outer side B of the frame can also reduce the metal material consumption of the cover plate and lower the cost.

[0077] In this embodiment, the fixing slots 119 of the corresponding long frame 11 of the two photovoltaic modules 1 are arranged opposite to each other.

[0078] like Figure 5 As shown, in this embodiment, a waterproof cover plate 1114 is provided above the corresponding long frame 11 of the two photovoltaic modules 1. Two opposing snap-fit ​​plates 1115 are provided at both ends of the waterproof cover plate 1114. Several grooves or protrusions are provided on the side of the snap-fit ​​plate 1115 near the end of the waterproof cover plate 1114. In use, the waterproof cover plate 1114 covers the first top plate 1110, so that the protrusions on the snap-fit ​​plate 1115 are snapped into the grooves of the fourth vertical plate 1112, or the protrusions on the fourth vertical plate 1112 are snapped into the grooves of the snap-fit ​​plate 1115.

[0079] In this embodiment, the number and shape of the grooves or protrusions on the snap-fit ​​plate 1115 match the protrusions or grooves on the fourth vertical plate 112.

[0080] In this embodiment, the gap between the waterproof cover plate 1114 and the first top plate 1110 is filled with a waterproof adhesive strip 1117 to improve the waterproof effect.

[0081] In this embodiment, the waterproof cover plate 1114 is long and narrow.

[0082] like Figure 6 and Figure 7 As shown, in this embodiment, the crossarm body 2 includes a first support part 21 for mounting the photovoltaic module 1 and a first fixing part 22 located on both sides of the first support part 21. The first fixing part 22 is fitted into the grooves on both sides of the support plate 71. The upper surface of the first support part 21 is provided with a first limiting protrusion 211, a second limiting protrusion 212, and a third limiting protrusion 213 from right to left. A fourth mounting groove 214 is formed between the first limiting protrusion 211 and the second limiting protrusion 212 to accommodate the long frame 11 and the pressure block 3. A fifth mounting groove 215 is formed between the second limiting protrusion 212 and the third limiting protrusion 213 to accommodate the long frame 11.

[0083] Compared with conventional brackets, the crossbeam body used in this utility model can achieve the following unexpected technical effects: it has the advantages of simple structure, convenient use, less metal consumables, load performance that meets requirements, low component installation difficulty, and low cost, and can be widely used in BIPV or BAPV systems.

[0084] In this embodiment, the third limiting protrusion 213 is inclined toward the side closer to the second limiting protrusion 212, so that a groove is formed between the third limiting protrusion 213 and the first support part 21. During installation, the bottom plate 117 of the long frame 11 is clamped in the groove. The included angle between the third limiting protrusion 213 and the surface of the first support part 21 is 45°. In other embodiments, it can also be 30°, 40°, 50°, or 60°, but it is not limited to these.

[0085] In this embodiment, the first support part 21 is also provided with a first mounting hole 216 for fixing the pressure block 3. The first mounting hole 216 is located in the fourth mounting groove 214. The pressure block can be fixed to the photovoltaic module through the first mounting hole 216.

[0086] In this embodiment, the first support part 21 and the first fixing part 22 are in the same plane, and the thickness of the first fixing part 22 is greater than that of the first support part 21. This can reduce the use of metal consumables while ensuring that the crossarm body has excellent load performance, and at the same time enhance the mechanical strength of the crossarm body. The first fixing part 22 is provided with a second mounting hole 221, through which the crossarm body can be fixed in the groove of the support plate 71.

[0087] In this embodiment, the photovoltaic module 1 is fixed to the first support 21 by the long frame 11 and the pressure block 3.

[0088] As an example, such as Figure 8 As shown, the pressure block 3 includes a horizontal pressure plate 31. Both ends of the horizontal pressure plate 31 are bent upward to form a vertical pressure plate 32. The end of the vertical pressure plate 32 away from the horizontal pressure plate 31 is bent in the same or opposite direction as the first direction X to form a locking plate 33. One of the locking plates 33 is bent downward to form a fourth lower folded edge 34 away from the vertical pressure plate 32. A second fixing cavity 36 is formed between the vertical pressure plate 32 and the fourth lower folded edge 34 to accommodate the first upper folded edge 118. In use, the second fixing cavity 36 is engaged with the first upper folded edge 118. The other locking plate 33 has a horizontal edge 35 extending outward in the horizontal direction at the end away from the vertical pressure plate 32.

[0089] In this embodiment, the transverse pressure plate 31 is also provided with a first matching hole 37; the first matching hole 37 is used in conjunction with the first mounting hole 216.

[0090] In this embodiment, as follows Figure 4The base plates 117 of the two long frame 11 shown are mounted opposite each other on the first mounting groove 214 and the second mounting groove 215. At the same time, a [something] is inserted between the long frame 11. Figure 8 The pressure block 3 is shown, and the outer surface of the transverse pressure plate 31 of the pressure block 3 is made to fit with the surface of the first support part 21 of the crossarm body 2, so that the bottom plates 117 of the two long frame 11 and the transverse pressure plate 31 of the pressure block 3 are installed on the first support part 21 of the crossarm body 2. Furthermore, bolts are installed in the first mounting hole 216 of the crossarm body and the first matching hole 37 of the pressure block 3, so that the pressure block 3 and the crossarm body 2 are connected by bolts, thereby fixing the long frame 11 of the photovoltaic module on the crossarm body 2, and completing the installation of the photovoltaic module.

[0091] As an example, such as Figure 9 As shown, the bracket 4 is M-shaped and is an integrally formed structure; the bracket 4 includes a second support part 41 and a second fixing part 42 located on both sides of the second support part 41; the second fixing part 42 is L-shaped; the top of the second fixing part 42 is provided with a second matching hole 43, and the second matching hole 43 and the fourth matching hole 74 are connected by bolts to fix the connector 7 on the bracket 4; the bottom of the second fixing part 42 is provided with a third mounting hole 44, and the bracket 4 is fixed on the purlin 8 by bolts.

[0092] As an example, such as Figure 1 As shown, a water guide channel is also provided between the bracket 4 and the connector 7, and the water guide channel is located below the crossbeam body 2; the water guide channel includes a U-shaped water channel 5 and an M-shaped water channel 6.

[0093] As an example, such as Figure 10 As shown, the U-shaped water tank 5 includes a horizontally arranged U-shaped tank body 51, and ear plates 52 are provided on both sides of the U-shaped tank body 51. The ear plates 52 are installed on the top of the second fixing part 42 of the bracket 4, so that the U-shaped water tank 5 is fixed between the bracket 4 and the connector 7. The outer side of the U-shaped tank body 51 fits against the inner side of the second support part 41, thereby enhancing the mechanical strength of the U-shaped water tank 5.

[0094] As an example, such as Figure 11 As shown, the M-shaped water tank 6 includes a third support part 61 and a third fixing part 62 located on both sides of the third support part 61; the third fixing part 62 is L-shaped; the top of the third fixing part 62 is provided with a third matching hole 63, which is connected to the second matching hole 43 and the fourth matching hole 74 by bolts, so that the M-shaped water tank 6 is fixed between the bracket 4 and the connector 7; the outer side of the third support part 61 fits against the inner side of the second support part 41; the bottom of the third fixing part 62 is provided with a fourth mounting hole 64, and the M-shaped water tank 6 is fixed to the bracket 4 or the purlin 8 by bolts.

[0095] like Figure 12 , Figure 13 , Figure 14 As shown, in this embodiment, the photovoltaic module 1 also includes a short frame 12, which includes an upper frame and a lower frame.

[0096] As an example, such as Figure 12 As shown, the upper frame includes a first body, which includes a second connecting cavity 121. A second top plate 122 is provided above the second connecting cavity 121. One end of the second top plate 122 is connected to the second connecting cavity 121 via a fifth vertical plate 123, and a second mounting groove 124 for accommodating the laminate 1116 is formed between the second connecting cavity 121, the second top plate 122, and the fifth vertical plate 123. A third horizontal plate 125 extends from the other end of the second top plate 122 along the first direction X. The end of the third horizontal plate 125 away from the second top plate 122 is bent downward to form a second lower folded edge 128. A fourth horizontal plate 1210 extends from the end of the third horizontal plate 125 away from the second top plate 122 along the first direction X. The end of the fourth horizontal plate 1210 away from the second lower folded edge 128 is bent downward to form a third lower folded edge 1211. As an example, such as Figure 13 As shown, the lower frame includes a second body, which includes a third connecting cavity 1212. A third top plate 1213 is provided above the third connecting cavity 1212. One end of the third top plate 1213 is connected to the third connecting cavity 1212 via a sixth vertical plate 1214, and a third mounting groove 1215 for accommodating the laminate 1116 is formed between the third top plate 1213, the sixth vertical plate 1214 and the third connecting cavity 1212. The sixth vertical plate 1214 extends a first length D1 along the direction opposite to the first direction X and then bends upward to form a second upper folded edge 1216. A first water tank 1217 is formed between the second upper folded edge 1216 and the sixth vertical plate 1214.

[0097] In this embodiment, when in use, the fourth horizontal plate 1210 overlaps the third top plate 1213, and the second upper folded edge 1216 and the second lower folded edge 128 are used together.

[0098] In this embodiment, the second upper folded edge 1216 and the second lower folded edge 128 are connected by a snap-fit ​​mechanism.

[0099] In this embodiment, the second lower folded edge 128 is provided with several grooves or protrusions on the side away from the fifth vertical plate 123; the second upper folded edge 1216 is provided with several grooves or protrusions on the side away from the sixth vertical plate 1214.

[0100] In this embodiment, a reinforcing cavity 1218 is provided on one side of the third connecting cavity 1212, and the reinforcing cavity 1218 is located below the first water tank 1217.

[0101] In this embodiment, a seventh vertical plate 1219 extends along the second direction Y on the side of the reinforcing cavity 1218 away from the third connecting cavity 1212.

[0102] In this embodiment, a second water tank 1220 is formed between the sixth vertical plate 1214, the reinforcing cavity 1218 and the seventh vertical plate 1219.

[0103] In this embodiment, the third horizontal plate 125 is provided with a first lower folded edge 126 at one end near the second top plate 122, and a first fixing cavity 127 is formed between the fifth vertical plate 123, the third horizontal plate 125 and the first lower folded edge 126 to accommodate the seventh vertical plate 1219; the fourth horizontal plate 1210 is inclined upward, and in use, the fourth horizontal plate 1210 overlaps the third top plate 1213.

[0104] In this embodiment, when the photovoltaic module 1 is installed on the bracket 4, the plane where the second top plate 122 is located is tilted downwards, wherein the angle between the plane where the second top plate 122 is located and the horizontal plane is 30°. In other embodiments, the angle between the plane where the second top plate 122 of the horizontal frame is located and the horizontal plane can also be 5°, 15°, 25°, 35°, 45°, 55°, or 60°.

[0105] Compared to conventional photovoltaic modules, the photovoltaic module used in this invention includes a short frame, which brings the following unexpected technical effects: During use, the upper frame is overlapped and clamped onto the lower frame; quick and stable installation is achieved by pressing the clamps and locking the modules. Furthermore, it can create a level 6 waterproof effect. Figure 15As shown, specifically: the fourth horizontal plate overlaps the third top plate to form a level 1 waterproof, effectively reducing rainwater entering the first water tank; the first water tank serves as a level 2 waterproof, draining leaks / seepage into the main water tank, effectively improving the waterproof effect; more importantly, the second upper fold and the second lower fold work together to form a level 3 waterproof between them, effectively reducing water seepage from the first water tank; simultaneously, by connecting the second upper fold and the second lower fold using a snap-fit ​​method, not only is the overlap between the upper and lower frames strengthened, improving the mechanical strength of the horizontal frame, but the level 3 waterproof effect is also enhanced; several grooves or protrusions are provided on the side of the second upper fold and the second lower fold that are close to each other, which improves the installation stability of the upper and lower frames; a seventh vertical line extends along the second direction Y on the side of the reinforcing cavity away from the third connecting cavity. The system consists of a first vertical plate and a second water trough formed between the sixth vertical plate, the reinforcing cavity, and the seventh vertical plate. This second water trough, being relatively larger, collects water dripping from the level 3 waterproofing area and drains it into the main water trough, thus achieving level 4 waterproofing. A first downward folded edge is provided at the end of the third horizontal plate near the second top plate, forming a first fixing cavity between the fifth vertical plate, the third horizontal plate, and the first downward folded edge to accommodate the seventh vertical plate. By using the first fixing cavity to engage the seventh vertical plate, the installation stability of the upper and lower frames is improved, thereby enhancing the overall wind resistance of the photovoltaic system. Furthermore, level 5 waterproofing is achieved, effectively preventing water leakage from the second water trough from extending out, thus improving the waterproofing effect. Finally, when installing the photovoltaic modules on the bracket, the plane of the second top plate is tilted downwards, preventing rainwater from flowing towards the overlap joint. This creates level 6 waterproofing between two adjacent photovoltaic modules, further enhancing the waterproofing effect. Therefore, compared with conventional horizontal frames, the short frame used in 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.

[0106] Combination Figure 1 , 16 As can be seen from 17, the photovoltaic building integrated power generation system of this utility model can meet the various needs of different buildings, such as Figure 1 As shown, when the bracket is a small-sized, low-profile M-shaped bracket (width ≤ 220mm, height ≤ 35mm), the constructed building-integrated photovoltaic (BIPV) power generation system is suitable for sunshade roofs. The bracket can be fixed to the roof purlins and serves as both a water trough support and a structural load-bearing component for the BIPV section. It is fixed to the roof purlins using self-tapping screws, and also to the connectors (adjustment details are known). Figure 16As shown, when the bracket is a medium-sized high M-type bracket (220≤width≤320mm, 80≤height≤120mm), the constructed building-integrated photovoltaic (BIPV) power generation system is suitable for corrugated steel tile roofs. The bracket can be fixed to the roof purlins and serves as both a water channel support and a structural load-bearing component for the BIPV section. It is fixed to the roof purlins using self-tapping screws, and also to the connectors (adjustment details are known). Figure 17 As shown, when the bracket is a large-sized long M-shaped bracket (320≤width≤420mm, 80≤height≤120mm), the constructed photovoltaic building integrated power generation system is suitable for corrugated steel tile roofs and can also be used across the corrugated steel tile crests. The bracket used can be fixed to the purlins of the roof and serves as a water trough support and a structural load-bearing component of the BIPV part. It is fixed to the roof purlins with self-tapping screws and to the connectors (adjustment known) with self-tapping screws.

[0107] This embodiment also provides an installation method for a building-integrated photovoltaic (BIPV) power generation system, applicable to the BIPV power generation system of this embodiment, including the following steps: S1. Install the bracket 4 on the purlin 8 at the top of the building (sunshade). Specifically, fix it with self-tapping screws or bolts, and use the third mounting hole 44 at the bottom of the second fixing part 42 to fix the bracket 4 on the purlin 8.

[0108] S2. Install the connector 7 on the bracket 4. Specifically, fix it by using self-tapping screws or bolts, and use the four fourth matching holes 74 on the support plate 71 to fix the connector 7 on the bracket 4.

[0109] In step S2, before installing the connector 7, the water guide channel (U-shaped water channel 5) is installed on the bracket 4. Taking the U-shaped water channel 5 as an example, specifically: the ear plate 52 of the U-shaped water channel 5 is installed on the top of the second fixing part 42, so that the U-shaped water channel 5 is installed on the bracket (4), and then the outer side of the U-shaped channel 51 is attached to the inner side of the second support part 41, and under the action of the connector 7, the water guide channel is fixed between the bracket 4 and the connector 7, so as to facilitate the collection of rainwater leaking from the photovoltaic module connection.

[0110] S3. Fit the crossarm body 2 into the grooves on both sides of the support plate 71, so that the crossarm body 2 can slide between the grooves on both sides of the support plate 71.

[0111] S4. Install the photovoltaic module 1 on the crossarm body 2. Specifically, snap the long frame 11 into the fourth mounting slot 214 and the fifth mounting slot 215 respectively, slide the crossarm body 2, adjust the photovoltaic module 1 to the designated position, and fix the relatively set photovoltaic module 1 on the crossarm body 2 by the pressure block 3. During this process, attach the upper frame of the short frame 12 to the lower frame. In this order, install the photovoltaic module 1 gradually on the top of the building. After all the photovoltaic modules 1 are installed, cover them with the waterproof cover plate 1114. This completes the installation of the building-integrated photovoltaic power generation system.

[0112] 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 building-integrated photovoltaic (BIPV) power generation system, characterized in that, It includes at least two photovoltaic modules (1), a crossarm body (2), a pressure block (3), a bracket (4), and a connector (7). The photovoltaic module (1) is fixed on the crossarm body (2) by the pressure block (3). The crossarm body (2) is slidably mounted on the connector (7). The connector (7) is installed on the upper end of the bracket (4). The bracket (4) is installed on the purlin (8) at the top of the building. The connector (7) includes a support plate (71) mounted on the bracket (4). The two sides of the support plate (71) are bent upward to form an upper folding plate (73). A groove is formed between the support plate (71) and the upper folding plate (73) to accommodate the crossbeam body (2). The crossbeam body (2) is fitted into the grooves on both sides of the support plate (71) so that the crossbeam body (2) can slide between the grooves on both sides of the support plate (71).

2. The building-integrated photovoltaic power generation system according to claim 1, characterized in that, The distance between the grooves on both sides of the support plate (71) is greater than the length of the crossbeam body (2), and the distance between the upper folding plates (73) on both sides of the support plate (71) is less than the length of the crossbeam body (2).

3. The building-integrated photovoltaic power generation system according to claim 2, characterized in that, The support plate (71) has a waist-shaped hole (72) in the middle; the support plate (71) also has several fourth matching holes (74), and the connector (7) is installed on the bracket (4) by bolts; the fourth matching holes (74) are located around the support plate (71).

4. The building-integrated photovoltaic power generation system according to claim 3, characterized in that, The photovoltaic module (1) includes a long frame (11), the long frame (11) includes a body, the body includes a first connecting cavity (111) formed by a pair of horizontal plates and a pair of vertical plates to accommodate a reinforcement component, a bottom plate (117) and a first top plate (1110) are respectively provided below and above the first connecting cavity (111), the pair of horizontal plates includes a first horizontal plate (112) and a second horizontal plate (113), a first mounting groove (1111) is formed between the first horizontal plate (112) and the first top plate (1110) to accommodate a laminate (1116), the pair of vertical plates includes a first vertical plate (114) and a second vertical plate (115). A plate (115) has a second vertical plate (115) extending along the second direction Y with a third vertical plate (116). The width of the third vertical plate (116) along the first direction X is greater than that of the second vertical plate (115). The end of the third vertical plate (116) away from the second vertical plate (115) is connected to the bottom plate (117). One end of the bottom plate (117) is bent upward to form a first upper folded edge (118), so that the first upper folded edge (118) is aligned with the first vertical plate (114). A fixing groove (119) for accommodating the pressure block (3) is formed between the second horizontal plate (113) and the first upper folded edge (118). The distance between the third vertical plate (116) and the first upper folded edge (118) on the base plate (117) is the same as the length of the second horizontal plate (113) along the first direction X; the thickness of the base plate (117) along the second direction Y is greater than that of the second horizontal plate (113); the width of the third vertical plate (116) along the first direction X is 0.8 mm to 2 mm; the length of the first upper folded edge (118) is 2 mm to 8 mm; the thickness of the base plate (117) along the second direction Y is 0.8 mm to 2 mm; A fourth vertical plate (1112) extends from the end of the first vertical plate (114) away from the first upper folded edge (118) in a direction opposite to the second direction Y. The end of the fourth vertical plate (1112) away from the first vertical plate (114) is connected to the first top plate (1110). The first top plate (1110) has a slot (1113) on the side near the first mounting groove (1111). The fourth vertical plate (1112) has at least one protrusion or groove on the side away from the first mounting groove (1111); The fixing slots (119) of the corresponding long frame (11) of the two photovoltaic modules (1) are arranged opposite to each other; A waterproof cover plate (1114) is provided above the corresponding long frame (11) of the two photovoltaic modules (1); two opposing snap-fit ​​plates (1115) are provided at both ends of the waterproof cover plate (1114), and several grooves or protrusions are provided on the side of the snap-fit ​​plate (1115) near the end of the waterproof cover plate (1114). In use, the waterproof cover plate (1114) covers the first top plate (1110), so that the protrusions on the snap-fit ​​plate (1115) are snapped into the grooves of the fourth vertical plate (1112), or the protrusions on the fourth vertical plate (1112) are snapped into the grooves of the snap-fit ​​plate (1115); the gap between the waterproof cover plate (1114) and the first top plate (1110) is filled with waterproof adhesive strips (1117); the waterproof cover plate (1114) is long and narrow.

5. The building-integrated photovoltaic power generation system according to claim 4, characterized in that, The crossarm body (2) includes a first support part (21) for mounting the photovoltaic module (1) and a first fixing part (22) located on both sides of the first support part (21). The first fixing part (22) is fitted into the grooves on both sides of the support plate (71). The upper surface of the first support part (21) is provided with a first limiting protrusion (211), a second limiting protrusion (212), and a third limiting protrusion (213) from right to left. A fourth mounting groove (214) is formed between the first limiting protrusion (211) and the second limiting protrusion (212) to accommodate the long frame (11) and the pressure block (3). A fifth mounting groove (215) is formed between the second limiting protrusion (212) and the third limiting protrusion (213) to accommodate the long frame (11). The third limiting protrusion (213) is inclined toward the side closer to the second limiting protrusion (212), so that a groove is formed between the third limiting protrusion (213) and the first support part (21). During installation, the bottom plate (117) of the long frame (11) is clamped in the groove; the included angle between the third limiting protrusion (213) and the surface of the first support part (21) is 30° to 60°. The first support part (21) is also provided with a first mounting hole (216) for fixing the pressure block (3), and the first mounting hole (216) is located in the fourth mounting groove (214); The first support part (21) and the first fixing part (22) are in the same plane; the thickness of the first fixing part (22) is greater than that of the first support part (21); the first fixing part (22) is provided with a second mounting hole (221). The photovoltaic module (1) is fixed to the first support (21) by a long frame (11) and a pressure block (3).

6. The building-integrated photovoltaic power generation system according to claim 5, characterized in that, The pressure block (3) includes a horizontal pressure plate (31), the two ends of the horizontal pressure plate (31) are bent upward to form a vertical pressure plate (32), the end of the vertical pressure plate (32) away from the horizontal pressure plate (31) is bent in the same or opposite direction to the first direction X to form a locking plate (33), one of the locking plates (33) is bent downward to form a fourth lower fold (34) away from the vertical pressure plate (32), a second fixing cavity (36) is formed between the vertical pressure plate (32) and the fourth lower fold (34) to accommodate the first upper fold (118). In use, the second fixing cavity (36) is locked onto the first upper fold (118), and the other locking plate (33) has a horizontal edge (35) extending outward in the horizontal direction away from the vertical pressure plate (32). The transverse pressure plate (31) is also provided with a first matching hole (37); the first matching hole (37) is used in conjunction with the first mounting hole (216).

7. The building-integrated photovoltaic power generation system according to claim 6, characterized in that, The bracket (4) is M-shaped and is an integrally formed structure; the bracket (4) includes a second support part (41) and a second fixing part (42) located on both sides of the second support part (41); the second fixing part (42) is L-shaped; the top of the second fixing part (42) is provided with a second matching hole (43), and the second matching hole (43) and the fourth matching hole (74) are connected by bolts to fix the connector (7) on the bracket (4); the bottom of the second fixing part (42) is provided with a third mounting hole (44), and the bracket (4) is fixed on the purlin (8) by bolts.

8. The building-integrated photovoltaic power generation system according to claim 7, characterized in that, A water guide channel is also provided between the bracket (4) and the connector (7), and the water guide channel is located below the crossbeam body (2); the water guide channel includes a U-shaped water channel (5) and an M-shaped water channel (6). The U-shaped water tank (5) includes a horizontally arranged U-shaped tank body (51), and ear plates (52) are provided on both sides of the U-shaped tank body (51); the ear plates (52) are installed on the top of the second fixing part (42) so that the U-shaped water tank (5) is fixed between the bracket (4) and the connector (7); the outer side of the U-shaped tank body (51) is in contact with the inner side of the second support part (41); The M-shaped water tank (6) includes a third support part (61) and a third fixing part (62) located on both sides of the third support part (61); the third fixing part (62) is L-shaped; the top of the third fixing part (62) is provided with a third matching hole (63), the third matching hole (63) is connected to the second matching hole (43) and the fourth matching hole (74) by bolts, so that the M-shaped water tank (6) is fixed between the bracket (4) and the connector (7); the outer side of the third support part (61) is in contact with the inner side of the second support part (41); the bottom of the third fixing part (62) is provided with a fourth mounting hole (64), and the M-shaped water tank (6) is fixed on the bracket (4) or the purlin (8) by bolts.

9. The building-integrated photovoltaic power generation system according to any one of claims 1 to 3, characterized in that, The photovoltaic module (1) includes a short frame (12), which includes an upper frame and a lower frame; The upper frame includes a first body, the first body including a second connecting cavity (121), a second top plate (122) above the second connecting cavity (121), one end of the second top plate (122) is connected to the second connecting cavity (121) through a fifth vertical plate (123) and a second mounting groove (124) for accommodating a laminate (1116) is formed between the second connecting cavity (121), the second top plate (122) and the fifth vertical plate (123), the other end of the second top plate (122) extends along the first direction X with a third horizontal plate (125), the end of the third horizontal plate (125) away from the second top plate (122) is bent downward to form a second lower folded edge (128); the end of the third horizontal plate (125) away from the second top plate (122) extends along the first direction X with a fourth horizontal plate (1210), the end of the fourth horizontal plate (1210) away from the second lower folded edge (128) is bent downward to form a third lower folded edge (1211). The lower frame includes a second body, the second body includes a third connecting cavity (1212), a third top plate (1213) is provided above the third connecting cavity (1212), one end of the third top plate (1213) is connected to the third connecting cavity (1212) through a sixth vertical plate (1214), and a third mounting groove (1215) for accommodating the laminate (1116) is formed between the third top plate (1213), the sixth vertical plate (1214) and the third connecting cavity (1212), the sixth vertical plate (1214) extends a first length D1 in the direction opposite to the first direction X and then bends upward to form a second upper folded edge (1216), a first water tank (1217) is formed between the second upper folded edge (1216) and the sixth vertical plate (1214). In use, the fourth horizontal plate (1210) overlaps the third top plate (1213), and the second upper folded edge (1216) and the second lower folded edge (128) are used together; The second upper folded edge (1216) and the second lower folded edge (128) are connected by a snap-fit ​​mechanism; The second lower folded edge (128) has several grooves or protrusions on the side away from the fifth vertical plate (123); the second upper folded edge (1216) has several grooves or protrusions on the side away from the sixth vertical plate (1214); A reinforcing cavity (1218) is provided on one side of the third connecting cavity (1212), and the reinforcing cavity (1218) is located below the first water tank (1217); A seventh vertical plate (1219) extends along the second direction Y on the side of the reinforcing cavity (1218) away from the third connecting cavity (1212). A second water tank (1220) is formed between the sixth vertical plate (1214), the reinforcing cavity (1218), and the seventh vertical plate (1219). The third horizontal plate (125) has a first lower folded edge (126) at one end near the second top plate (122), and a first fixed cavity (127) is formed between the fifth vertical plate (123), the third horizontal plate (125) and the first lower folded edge (126) to accommodate the seventh vertical plate (1219); the fourth horizontal plate (1210) is inclined upward, and in use, the fourth horizontal plate (1210) overlaps the third top plate (1213).

10. The building-integrated photovoltaic power generation system according to claim 9, characterized in that, When the photovoltaic module (1) is installed on the bracket (4), the plane on which the second top plate (122) is located is tilted downward; the angle between the plane on which the second top plate (122) is located and the horizontal plane is 5° to 60°.

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