CN115306091B - Building integrated photovoltaic system - Google Patents

Abstract

A building-integrated photovoltaic system, installed on a steel frame system, is provided with a number of photovoltaic components, and also includes a number of longitudinal water guide beam groups and a number of transverse water guide plate groups; the plurality of longitudinal water guide beam groups are fixed at horizontal intervals along The steel frame system is also provided with a first water guide channel. The plurality of transverse water guide plate groups are arranged at longitudinal intervals above the longitudinal water guide beam group and are provided with a second water guide channel. The second water guide channel is connected to the first water guide channel. , several storage frames distributed in arrays are formed between the plurality of longitudinal water guide beam groups and the plurality of transverse water guide plate groups; several photovoltaic modules are respectively fixedly placed in the corresponding storage frames. The parts of the invention have high versatility, convenient construction, high efficiency, and good waterproof effect.

Description

A building-integrated photovoltaic system

Technical field

The invention relates to the field of photovoltaic building integration, in particular to a BIPV photovoltaic roof system.

Background technique

Photovoltaic building integration is a technology that combines or integrates photovoltaic power generation products with buildings. There are many forms of photovoltaic building integration, among which the use of ordinary crystalline silicon photovoltaic modules as building roofs instead of roof tiles - especially color steel tiles, is one of the forms of photovoltaic building integration. This form is a very economical choice for old roofs where the roof panels (tiles) need to be updated and for building roofs to be built. It not only builds the photovoltaic power station but also completes the roof renewal or sealing. So currently, it has been used on industrial and commercial roofs. Compared with the solution of using special photovoltaic tiles as roof tiles, it has the advantages of relatively low cost, convenient maintenance and low installation technical requirements. As the cost of crystalline silicon components and supporting equipment decreases, this form of photovoltaic building integration will have great room for development.

For the above-mentioned photovoltaic building-integrated rooftop power stations using ordinary crystalline silicon photovoltaic modules, the industry has conducted a lot of exploration on structural forms, bracket systems, etc. Among them, the structural applications consisting of vertical and horizontal water tanks and module brackets account for the majority; these solutions have certain limitations. The degree of imperfections includes the overlapping problem between the photovoltaic roof and the building complex, or the insufficient connection strength of the components (especially the insufficient wind resistance), or the overall structure is too complex, difficult to install, or there is a risk of water leakage.

Contents of the invention

The main purpose of the present invention is to overcome the defects of the existing photovoltaic building-integrated roof whose overall structure is too complex, difficult to install, or leaky, and to propose a building-integrated photovoltaic system with high parts versatility, convenient construction, high efficiency, and waterproof effect. good.

The present invention adopts the following technical solutions:

A building-integrated photovoltaic system is installed on a steel frame system and is provided with a number of photovoltaic components. It is characterized in that it also includes a number of longitudinal water guide beam groups and a number of transverse water guide plate groups; the plurality of longitudinal water guide beam groups are along the The transverse water guide plate groups are fixed on the steel frame system at horizontal intervals and are provided with first water guide channels. The plurality of transverse water guide plate groups are arranged at longitudinal intervals above the longitudinal water guide beam groups and are provided with second water guide channels. The second water guide channels are connected to In the first water guide channel, a number of storage frames distributed in arrays are formed between the plurality of longitudinal water guide beam groups and the plurality of transverse water guide plate groups; a plurality of photovoltaic modules are respectively fixedly placed in the corresponding storage frames.

Preferably, the longitudinal water-guiding beam group includes a plurality of water-guiding beams arranged longitudinally, and adjacent water-guiding beams are connected by overlapping; the water-guiding beam includes a first bottom wall and two first side walls. The first side walls respectively extend upward and slope outward along both sides of the first bottom wall, and the first bottom wall and the two first side walls form the first water conduit. Preferably, the first bottom wall is provided with upward or downward inclined folding edges on both sides, and the top of the first side wall is also provided with an outwardly bent reinforcing edge.

Preferably, the first bottom wall includes a first bottom and a second bottom that are parallel to each other, the first bottom and the second bottom are connected by the flange, and the reinforcing edge is connected with the first bottom and the second bottom. The second bottom is parallel.

Preferably, the two first side walls respectively form an included angle of the same degree with the first bottom wall, and the two folded edges respectively form an included angle of the same degree with the two second bottoms connected thereto.

Preferably, the longitudinal water guide beam group is fixed to the steel frame system through a number of first fixing parts. The first fixing parts include a bottom plate, two side plates and two reinforcing plates. The bottom plate is connected to the steel frame system through locking parts. The frame system is fixed, and the two side plates are connected to the top surface of the bottom plate and form a fixing groove with them. The fixing groove is set on the outer periphery of the longitudinal water guide beam group and is fixedly connected through the locking piece; the two reinforcing plates are connected to the corresponding side plates respectively. between the outer wall and the base plate.

Preferably, the photovoltaic module is fixed to the longitudinal water guide beam group through a plurality of second fixing parts; the second fixing part includes a pad, a connecting piece and a pressing block, and the pad is fixed to the longitudinal water guide beam group through a locking part. On the top surface of the water guide beam, one end of the connector is fixedly connected to the pad, and the other end is fixedly connected to the pressure block. A slot is formed between the pressure block and the pad; the side of the photovoltaic module is embedded in the slot to achieve fixation. .

Preferably, it also includes a plurality of cover plates, which are disposed at transverse intervals above the corresponding longitudinal water guide beam groups and snap-fit with the pressure blocks of the plurality of second fixing members.

Preferably, the transverse water guide plate group includes a plurality of water guide plates arranged at intervals along the transverse direction, and both ends of the water guide plate are respectively placed above the corresponding two longitudinal water guide beam groups; the water guide plate includes a second bottom wall and Two second side walls, the bottom wall is provided with concave flow guides at both ends, the two second side walls extend upward along both sides of the second bottom wall, and the second bottom wall and the two second side walls form a The second water conduit channel; or the second water conduit channel is further provided with a waterproof strip, and the waterproof strip is placed around the outer periphery of the corresponding side of the photovoltaic module.

Preferably, it also includes a number of intermediate guide rails, which are distributed at intervals along the transverse direction and are respectively located between two adjacent longitudinal water guide beams; the top of the intermediate guide rail is in abutment contact with the bottom of the transverse water guide plate group, and the bottom is locked by The parts are fixedly connected to the steel frame system.

Preferably, it also includes a number of flashing plates and a number of color steel plates; the several flashing plates are installed between the ends of two adjacent longitudinal water guide beam groups, and a cushion pipe is fixed on the bottom surface of one end of the flashing plate to be located The top of the corresponding longitudinal water guide beam has the other end overlapped with the top surface of the color steel plate, which is fixedly connected to the steel frame system; or, it also includes a ridge cover plate, which is located at the top of the steel frame system. The roof ridge and its two ends are located in the second water conduit, which is achieved by pressing the two ends of the roof ridge cover by the inspection pedal or the photovoltaic module.

From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

1. In the present invention, a number of longitudinal water guide beam groups and a number of transverse water guide plate groups are provided; the plurality of longitudinal water guide beam groups are fixed on the steel frame system at transverse intervals and are provided with first water guide channels. The water guide plate group is arranged at longitudinal intervals above the longitudinal water guide beam group and is provided with a second water guide channel connected to the first water guide channel. Several photovoltaic modules are respectively fixedly placed between the longitudinal water guide beam group and the transverse water guide plate group. The storage frame formed between them has high parts versatility, convenient and efficient construction, and good waterproofing effect.

2. In the present invention, adjacent water guide beams in the longitudinal water guide beam group are connected by overlap, which is easy to construct and does not require high installation accuracy. It can also avoid water leakage at the overlap; the first guide beam of the water guide beam is The V-shaped sink can increase drainage and prevent overflow and leakage caused by large flow of water; the first bottom wall of the water guide beam is equipped with an upward or downward inclined flange, which can act as a reinforcing rib and increase the first Bottom wall thickness to increase its strength. The top of the first side wall is also provided with an outwardly bent reinforcing edge, thereby increasing the strength of the entire water guide beam.

3. In the present invention, the longitudinal water-guiding beam group is fixed to the steel frame system through a first fixing piece, and the first fixing piece is configured as a conformable structure to fix the water-guiding beam while enhancing the strength of the entire system; the photovoltaic module is fixed through a third The two fixing pieces are fixed to the longitudinal water guide beam group to enable portable installation. The backing plate prevents running water from penetrating and impacting the side walls and causing water leakage through the jigsaw structure at both ends; a cover plate is installed on the upper end of the pressure block to reduce running water. The infiltration and falling debris caused blockage of the water guide beam.

4. In the present invention, the transverse water guide plate assembly is provided with a plurality of water guide plates, and the end of the water guide plate is provided with a guide portion to guide the flowing water to the first guide channel to avoid water leakage caused by flowing back along the water guide plate. Problem, the water guide plate is equipped with waterproof strips to achieve multiple waterproofing and facilitate construction.

5. In the present invention, a number of intermediate guide rails are arranged at horizontal intervals and are respectively located between two adjacent longitudinal water guide beams as supports, which solves the problem of insufficient strength of the components due to the length of the components and enhances the convenience during construction and installation of photovoltaic components. sex.

6. In the present invention, a number of flashing plates and a number of color steel plates are provided to achieve the waterproofing function of the photovoltaic combination, improve the service life of the building and photovoltaic components, be suitable for roofs in various environments, and reduce the problems caused by construction classification and production classification. Cost and cycle; it also includes the ridge cover, which adopts a jigsaw-shaped appearance structure. The ridge cover is fixed and pressed by the photovoltaic modules or maintenance pedals to achieve a fixing effect, which greatly improves the convenience of construction; in addition, the ridge cover is used , waterproof strips, water guide plates, and maintenance pedals or photovoltaic modules to achieve multiple waterproof effects.

Description of drawings

Figure 1 is a partial structural diagram of the present invention;

Figure 2 is a partial structural diagram of the present invention (photovoltaic components removed);

Figure 3 shows the structure diagram of the water guide beam;

Figure 4 is a schematic diagram of the overlap of two water guide beams;

Figure 5 shows the water guide beam being fixed to the steel frame system through the first fixing piece;

Figure 6 shows the cooperation between the photovoltaic module and the second fixing piece;

Figure 7 is a structural diagram of the water guide plate;

Figure 8 shows the coordination diagram of photovoltaic modules and water guide plates;

Figure 9 shows that the intermediate guide rail is located between the water guide plate and the steel frame system;

Figure 10 shows the flashing plate connected between the color steel tiles and the water guide beam;

Figure 11 is a schematic diagram of the system roof of the present invention;

Figure 12 is a schematic diagram of the installation of the present invention;

Figure 13 is a partial enlarged view of Figure 12;

Figure 14 is a schematic diagram of the installation of the present invention (placement of photovoltaic modules);

Figure 15 is a partial enlarged view of Figure 14;

Figure 16 is a schematic diagram of the installation of the present invention (adding color steel tiles);

Figure 17 is a partial enlarged view of Figure 16;

in:

10. Photovoltaic module, 11. Second fixing piece, 12. Backing plate, 13. Connector, 14. Pressing block, 16. Cover plate, 20. Longitudinal water guide beam group, 21. First water guide channel, 22. Storage Frame, 23. Water guide beam, 24. First bottom wall, 241. First bottom, 242. Second bottom, 25. First side wall, 26. Folding edge, 27. Reinforcement edge, 28. First fixing piece , 28a, bottom plate, 28b, side plate, 28c, reinforcement plate, 29, locking piece, 30, transverse water guide plate group, 31, second water guide channel, 32, water guide plate, 33, second bottom wall, 34, Second side wall, 35, guide part, 36, waterproof strip, 40, steel frame system, 41, purlin, 50, middle guide rail, 60, flashing board, 61, gasket, 70, color steel plate, 80, roof ridge Cover plate, 81, sealing piece.

Detailed ways

The present invention will be further described below through specific embodiments.

Terms such as "first" and "second" appearing in the present invention are only for convenience of description to distinguish different components with the same name, and do not indicate sequence or priority relationship.

In the description of the present invention, the orientation or positional relationship indicated by "upper", "lower", "left", "right", "front" and "back" is based on the orientation or positional relationship shown in the drawings. , is only for the convenience of describing the present invention, and does not indicate or imply that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of the present invention.

Referring to Figures 1 to 14, a building-integrated photovoltaic system is installed on a steel frame system 40 and is provided with a number of photovoltaic modules 10, a number of longitudinal water guide beam groups 20 and a number of transverse water guide plate groups 30. The steel frame system 40 may be provided with an outer frame and a plurality of purlins 41 , and the plurality of purlins 41 are connected to the outer frame in a criss-cross manner to form a frame structure. The plurality of longitudinal water-guiding beam groups 20 are fixed on the steel frame system 40 at transverse intervals and are provided with first water-guiding channels 21 . The plurality of transverse water-guiding plate groups 30 are arranged at longitudinal intervals above the longitudinal water-guiding beam groups 20 and are provided with first water-guiding channels 21 . There is a second water guide channel 31 connected to the first water guide channel 21. A plurality of storage frames 22 are formed in an array between the plurality of longitudinal water guide beam groups 20 and the plurality of transverse water guide plate groups 30; The photovoltaic modules 10 are respectively fixedly placed in corresponding storage frames 22 .

Referring to Figures 3 and 4, each longitudinal water guide beam group 20 includes a number of water guide beams 23 arranged longitudinally. Adjacent water guide beams 23 are connected by overlapping. When overlapping, the adjacent water guide beams 23 are The amount of overlap between 23 can be adjusted according to the actual situation and is not limited here. The water guide beam 23 can be located between two laterally adjacent photovoltaic modules 10, and includes a first bottom wall 24 and two first side walls 25. The two first side walls 25 are respectively upward along both sides of the first bottom wall 24. Extending and tilting outward, the first bottom wall 24 and the two first side walls 25 form a first water conduit 21. The first water conduit 21 is similar to a V shape, which can increase drainage and prevent overflow and leakage caused by large flow of water. The two first side walls 25 and the first bottom wall 24 form a V-shaped structure. The two first side walls 25 respectively form angles of the same degree with the first bottom wall 24. Under this condition, the first side wall 25 forms a V-shaped structure with the first bottom wall 24. The V-shaped structure formed between the wall 25 and the first bottom wall 24 has strong strength, and can achieve a good water storage effect and increase drainage volume on the premise of playing a very good guiding role in flowing water. The two first bottom walls 24 between adjacent water guide beams 23 are overlapped, and the two side walls are also overlapped, which makes construction easy and has high installation accuracy, and can also avoid water leakage at the overlap.

Furthermore, the first bottom wall 24 is provided with upward or downward inclined flanges 26 on both sides. The first bottom wall 24 includes a first bottom 241 and a second bottom 242 that are parallel to each other. The second bottom 242 is located on the first bottom 241 On both sides, the first bottom 241 and the second bottom 242 are connected by flanges 26. The two flanges 26 form an angle of the same degree between the two second bottoms 242 they are connected to. The flanges 26 can play the role of The ribs function and increase the thickness of the first bottom wall 24 to increase its strength. The top of the first side wall 25 is also provided with an outwardly bent reinforcing edge 27 . The reinforcing edge 27 is parallel to the first bottom 241 and the second bottom 242 . That is, the reinforcing edge 7 is parallel to the first bottom 241 and the second bottom 242 . The second bottom 242 extends outward to play a supporting and fixing role, thereby increasing the strength of the entire water guide beam 23 . Referring to FIG. 5 , the longitudinal water guide beam group 20 is fixed to the steel frame system 40 through a plurality of first fixing members 28 . Specifically, the first fixing part 28 includes a bottom plate 28a, two side plates 28b and two reinforcing plates 28c. The bottom plate 28a is fixed to the steel frame system 40 through the locking part 29, that is, the purlin 41 is locked through screws. The two side plates 28b are connected to the top surface of the bottom plate 28a and form a fixing groove therewith. The shape of the fixing groove can be adapted to the shape of the water guide beam 23. The fixing groove is sleeved on the outer periphery of the longitudinal water guide beam group 20 and is fixedly connected through the locking member 29. That is, the top of the fixing groove is fixedly connected to the reinforcing edge 27 of the first side wall 25 through screws. The two reinforcing plates 28c are connected between the outer wall of the corresponding side plate 28b and the bottom plate 28a, and are used to increase the overall strength of the first fixing part 28.

Referring to FIG. 6 , the photovoltaic module 10 is fixed to the longitudinal water guide beam group 20 through a plurality of second fixing members 11 . Specifically, the second fixing part 11 includes a pad 12, a connecting part 13 and a pressing block 14. The pad 12 is fixed to the top surface of the longitudinal water guide beam group 20 through a locking part 29. One end of the connecting part 13 is connected to the pad 12 The other end is fixedly connected to the pressure block 14 , and a slot is formed between the pressure block 14 and the backing plate 12 . The side of the photovoltaic module 10 is embedded in the slot for fixation. The traditional T-bolt T-shaped module fixing method is eliminated to improve the convenience of construction.

In addition, a zigzag structure can be provided on both sides of the pad 12 to prevent water leakage from penetrating into the side walls and causing water leakage. The connector 13 can be connected between the middle part of the pad 12 and the middle part of the pressure block 14, so that the pressure blocks 14, Two symmetrical slots can be formed between the connecting member 13 and the backing plate 12, and the opposite sides of two laterally adjacent photovoltaic modules 10 are respectively embedded in the two slots.

Furthermore, a plurality of cover plates 16 are included. The plurality of cover plates 16 are disposed at transverse intervals above the corresponding longitudinal water guide beam groups 20 and snap-fit with the pressure blocks 14 of a plurality of second fixing members 11 . Among them, buckle strips can be respectively provided on the cover plate 16 and the pressure block 14, and the buckle strips can be used to achieve snap-fitting, and a two-way buckle is used to facilitate installation and later disassembly and maintenance. The cover plate 16 of the present invention can shield the connection and mating part between the pressure block 14 and the photovoltaic module 10, thereby reducing the infiltration of running water and the clogging of the water guide beam 23 caused by the falling of debris.

Referring to Figures 7 and 8, the transverse water guide plate group 30 includes a plurality of water guide plates 32 arranged at intervals along the transverse direction. Both ends of the water guide plates 32 are respectively placed above the corresponding two longitudinal water guide beam groups 20, and the water guide plates 32 are arranged at intervals along the transverse direction. 32 may be located between two longitudinally adjacent photovoltaic modules 10 . The water guide plate 32 includes a second bottom wall 33 and two second side walls 34. The bottom wall is provided with concave guide portions 35 at both ends to guide the water to the first guide groove 21 to prevent the water from flowing along the guide. The water plate 32 is reversely connected and causes water leakage. The two second side walls 34 extend upward along both sides of the second bottom wall 33 , and the second bottom wall 33 and the two second side walls 34 form a second water conduit 31 .

Furthermore, the second water conduit 31 is also provided with a waterproof strip 36, which is sleeved on the outer periphery of the corresponding side of the photovoltaic module 10. The waterproof strip 36 includes a T-shaped waterproof strip or an L-shaped waterproof strip. Multiple waterproofing is achieved through the water guide plate 32 and the waterproof strip 36.

Furthermore, a plurality of intermediate guide rails 50 are included as auxiliary supports. The plurality of intermediate guide rails 50 are distributed at horizontal intervals and are respectively located between two adjacent longitudinal water guide beam groups 20, which can enhance the convenience during construction and installation of the photovoltaic modules 10, and also This can avoid problems such as insufficient support strength due to too long length of the photovoltaic module 10; the top of the middle guide rail 50 is in contact with the bottom of the transverse water guide plate group 30, and the bottom is fixedly connected to the purlin 41 of the steel frame system 40 through the locking piece 29.

Further, referring to Figure 10, a number of flashing plates 60 and a number of color steel plates 70 are also included as the edging structure of the system of the present invention. The plurality of flashing plates 60 are installed between the ends of two adjacent longitudinal water guide beam groups 20 . That is, for the parts of the two ends of the longitudinal water guide beam group 20 that extend to the outside of the photovoltaic module array 10, the flashing board 60 can be installed to achieve the function of wrapping and waterproofing, thereby increasing the service life of the building and the photovoltaic module 10. A gasket 61 is fixed on the bottom surface of one end of the flashing plate 60 to be located on the top of the corresponding longitudinal water guide beam group 20, and the other end overlaps the top surface of the color steel plate 70. The color steel plate 70 is fixedly connected to the purlins 41 of the steel frame system 40.

In practical applications, universal flashing panels 60 and gaskets 61 can be used to achieve standardization, which can be used on roofs in various environments and reduce the cost and cycle caused by construction classification and production classification.

Further, referring to FIG. 11 , a ridge cover plate 80 is also included. The ridge cover plate 80 is located at the ridge of the steel frame system 40 and its two ends are located in the second water conduit 31 . The ridge cover plate 80 is pressed by the access pedal or the photovoltaic module 10 . Ridge cover 80 is implemented at both ends. In addition, the end of the water guide beam 23 at the roof ridge can be sealed with a sealing piece 81 .

The working principle of the present invention is as follows:

Referring to Figures 12 and 13, the first fixing members 28 are sequentially fixed on the purlins 41 of the steel frame system 40 according to the design drawings, and then the water guide beam 23 is placed on the first fixing member 28 and fixed so that the longitudinally adjacent The water guide beams 23 are overlapped. After the installation of the longitudinal water guide beam group 20 is completed, it is selected whether to place the intermediate guide rail 50 to enhance the strength of the photovoltaic module 10 according to the actual arrangement. Place the water guide plate 32 at the designated position according to the design drawing, that is, between the two transversely adjacent longitudinal water guide beam groups 20. After completing the installation of the transverse water guide plate group 30, install and fix the second fixing member according to the actual size. 11.

Referring to Figures 14 and 15, place the photovoltaic modules 10 in sequence according to the design drawings, embed the sides of the photovoltaic modules 10 into the slots, and fix the photovoltaic modules 10 through the pressing blocks 14, connectors 13 and backing plates 12; adjacent to each other in the longitudinal direction T-shaped waterproof strips 36 are placed between the photovoltaic modules 10; L-shaped anti-adhesive strips are placed between the ridge cover 80 and the photovoltaic modules 10 or the maintenance walkway, and the photovoltaic modules 10 press the roof ridge cover 80; sequence according to the design drawings Install the maintenance walkway and photovoltaic modules 10, and then install and fix the array of photovoltaic modules 10 in sequence; finally, elastically fasten the cover plate 16 and the pressing block 14.

Referring to Figures 16 and 17, install the edging system around the photovoltaic system according to the design drawings. The outside uses a flashing plate 60 and a gasket pipe 61 to overlap the pad 12 of the second fixing part 11 on the side of the photovoltaic module 10 array. It is fixed through the pressing block 14 and the connecting piece 13, and finally it is overlapped and fixed with the color steel plate 70.

This application uses an M-shaped water guide beam composed of a bottom wall, two side walls, two tops, and two supporting sides as a comparative example, and a W composed of two side walls, two supporting sides in the middle, and a fixed slot. As a second comparative example, compared with the embodiment of the present application, the water guide beam 23 of the embodiment of the present application consists of two first side walls 25 and a first bottom wall 24 forming a V-shaped water guide beam 23 , compared with Comparative Example 1 and Comparative Example 2, the embodiments of the present application have the following advantages:

1. The V-shaped water guide beam 23 in the embodiment of the present application achieves the effect of a reinforcing rib through the folded edge on the first bottom wall 24, so that it has higher strength, while the M-shaped water guide beam in Comparative Example 1 The middle of the beam is not strong enough and there must be supporting edges extending downward from the top. As a result, the structure is complex. When using aluminum alloy materials, the molds and equipment required are large in tonnage, require high wall thickness, are heavy in meters, and are costly. Compared with the M-shaped water guide beam in Comparative Example 1, it not only ensures the overall stability of the photovoltaic system, but also saves at least 25% in cross-sectional materials;

2. In the case of installing the same photovoltaic modules with the same specifications, the V-shaped water guide beam 23 in the embodiment of the present application can be made of aluminum alloy material. In comparison, the M-shaped water guide beam in Comparative Example 1 has a larger cross-section. , mainly made of carbon steel, heavy in weight, and manual installation efficiency is low. Compared with Comparative Example 1, the embodiment of the present application can save nearly 50% of the load-bearing capacity of the steel frame structure;

3. The W-shaped water guide beam in Comparative Example 2 has a complex cross-section, is difficult to splice for waterproofing, is heavy in meters, and has high cost. Compared with the aluminum alloy cross-section of the W-shaped water guide beam in Comparative Example 2, the embodiment of the present application is 36% can be saved on materials;

4. In terms of construction cost, the V-shaped water guide beam 23 of the embodiment of the present application can reduce the cost by 15% compared to the W-shaped water guide beam in Comparative Example 2;

5. In terms of waterproof structure, the embodiment of the present application stacks and splices water guide beams 23 up and down, adds inverted T-shaped and L-shaped rubber strips, adds a downward drainage port of the second water guide channel 31 and a two-way convenient buckle waterproof cover. The panel will completely solve the risk of roof leakage, drain 99% of the rainwater through the surface of the photovoltaic module 10, and a small amount of rainwater will penetrate into the interior of the water guide beam 23 to achieve a 100% waterproof effect;

6. The embodiment of this application not only reduces the construction period, but also eases the convenience of later operations and maintenance through the convenient installation form of one-place water guide beam, two-pressure roof ridge cover, and three-button waterproof cover.

7. Through standardized form, raised square tubes and flashing panels are used to complete the overlapping of the photovoltaic system and the steel frame structure, reducing construction classification and production classification problems.

The above are only specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive changes to the present invention using this concept shall constitute an infringement of the protection scope of the present invention.

Claims (7)

1. A building-integrated photovoltaic system, installed on a steel frame system and provided with a number of photovoltaic components, characterized in that it also includes a number of longitudinal water guide beam groups and a number of transverse water guide plate groups; the plurality of longitudinal water guide beam groups In order to be fixed on the steel frame system at transverse intervals and provided with first water guide channels, the longitudinal water guide beam group includes a number of water guide beams arranged longitudinally, and adjacent water guide beams are connected by overlapping; The beam includes a first bottom wall and two first side walls. The two first side walls respectively extend upward and slope outward along both sides of the first bottom wall. The first bottom wall and the two first side walls form the first side wall. A plurality of transverse water guide plate groups are arranged at longitudinal intervals above the longitudinal water guide beam group and are provided with a second water guide channel. The second water guide channel is connected to the first water guide channel, and the longitudinal water guide beam group passes through A plurality of first fixing parts are fixed to the steel frame system. The first fixing parts include a bottom plate, two side plates and two reinforcing plates. The bottom plate is fixed to the steel frame system through locking parts. The two side plates are connected to the top of the bottom plate. The two reinforcing plates are connected to each other and form a fixed groove with them. The fixed groove is sleeved on the outer periphery of the longitudinal water guide beam group and fixedly connected through the locking piece; the two reinforcing plates are respectively connected between the outer wall of the corresponding side plate and the bottom plate, and the transverse water guide beam group is The plate group includes a plurality of water guide plates arranged at intervals along the transverse direction. Both ends of the water guide plate are placed above the corresponding two longitudinal water guide beam groups; the water guide plate includes a second bottom wall and two second side walls. Recessed flow guides are provided at both ends of the wall, the two second side walls extend upward along both sides of the second bottom wall, and the second bottom wall and the two second side walls form the second guide channel; or The second water guide channel is also provided with a waterproof strip, which is sleeved on the outer periphery of the corresponding side of the photovoltaic module; a plurality of storage frames distributed in an array are formed between the plurality of longitudinal water guide beam groups and the plurality of transverse water guide plate groups. ; A number of photovoltaic modules are fixedly placed in corresponding storage frames, and the photovoltaic modules are fixed to the longitudinal water guide beam group through a number of second fixing parts; the second fixing parts include pads, connectors and pressure blocks, The pad is fixed to the top surface of the longitudinal water guide beam through a locking piece. One end of the connector is fixedly connected to the pad, and the other end is fixedly connected to the pressure block. A slot is formed between the pressure block and the pad; The side of the photovoltaic module is embedded in the slot for fixation. 2. A building-integrated photovoltaic system according to claim 1, characterized in that: both sides of the first bottom wall are provided with upward or downward inclined folding edges, and the top of the first side wall is also provided with an upward or downward inclined flange. Reinforced edges with outer bends. 3. A building-integrated photovoltaic system according to claim 2, characterized in that: the first bottom wall includes a first bottom and a second bottom that are parallel to each other, and a space between the first bottom and the second bottom is Connected by the flange, the reinforcing edge is parallel to the first bottom and the second bottom. 4. A building-integrated photovoltaic system as claimed in claim 3, characterized in that: the two first side walls respectively form angles of the same degree with the first bottom wall, and the two folded edges are connected to the two folded edges respectively. The second bottoms form an included angle of the same degree. 5. A building-integrated photovoltaic system as claimed in claim 1, further comprising a plurality of cover plates, which are disposed at transverse intervals above the corresponding longitudinal water guide beam groups and connected with the said The pressing blocks of a plurality of second fixing parts are snap-fitted. 6. A building-integrated photovoltaic system as claimed in claim 1, further comprising: a plurality of intermediate guide rails, which are distributed at intervals along the transverse direction and are respectively located between two adjacent longitudinal water guide beam groups; The top of the intermediate guide rail is in contact with the bottom of the transverse water guide plate group, and the bottom is fixedly connected to the steel frame system through a locking piece. 7. A building-integrated photovoltaic system as claimed in claim 1, further comprising: a plurality of flashing panels and a plurality of color steel plates; the plurality of flashing panels are installed on two adjacent longitudinal water guide beam groups. Between the ends, a pad pipe is fixed on the bottom surface of one end of the flashing plate to be located on the top of the corresponding longitudinal water guide beam, and the other end overlaps the top surface of the color steel plate, and the color steel plate is fixedly connected to the steel frame system; or, It also includes a ridge cover plate. The ridge cover plate is located at the ridge of the steel frame system and its two ends are located in the second water conduit. This is achieved by pressing the two ends of the ridge cover plate with an access pedal or a photovoltaic module.