A unitized photovoltaic panel connection structure for roof installation

Abstract

The present invention provides a unitized photovoltaic panel connection structure for roof installation, which includes a number of installation units located above the roof purlins. A number of installation units are spliced to form a photovoltaic installation system. There are multiple cross beams and columns in the photovoltaic installation system, and the cross beams and columns are perpendicularly connected to each other. On two opposite side walls of a single installation unit, a first aluminum alloy male frame and a first aluminum alloy female frame are respectively arranged. On the other two opposite side walls of a single installation unit, a second aluminum alloy male frame and a second aluminum alloy female frame are respectively arranged. The first aluminum alloy male frame and the first aluminum alloy female frame of two adjacent installation units are inserted and connected to form the column, and the second aluminum alloy male frame and the second aluminum alloy female frame of two adjacent installation units are inserted and connected to form the cross beam. The present invention cancels the aluminum alloy guide rail, sets multiple installation units, splices and combines them to form a photovoltaic installation system, simplifies the installation steps, and improves the efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and particularly to a unit type photovoltaic panel connection structure for roof installation. Background Art

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. It mainly consists of three major parts: solar panels (modules), controllers, and inverters. The main components are composed of electronic components. Solar cells can be encapsulated and protected after being connected in series to form large-area solar cell modules, and then combined with components such as power controllers to form a photovoltaic power generation device. With the development of the solar energy industry, the use of solar energy in household power generation systems and power station power generation systems will be more and more extensive, and the positions where photovoltaic panels are needed will also be more and more. In the prior art, photovoltaic panels are also installed on roofs.

[0003] In the existing roof photovoltaic panel support structure, the photovoltaic panels, rock wool sandwich panels, and aluminum alloy guide rails are all installed separately, that is, after the aluminum alloy guide rails are installed on the roof, the installation work of the rock wool sandwich panels and the photovoltaic panels is carried out again. Therefore, there are disadvantages such as cumbersome installation steps, low efficiency, easy water seepage, and poor drainage effect. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a unit type photovoltaic panel connection structure for roof installation. The present invention cancels the aluminum alloy guide rails, sets multiple installation units, and splices and combines them to form a photovoltaic installation system, simplifies the installation steps, and improves the efficiency.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] A unit type photovoltaic panel connection structure for roof installation, characterized in that: it includes a plurality of installation units located above the roof purlins, and the plurality of installation units are spliced to form a photovoltaic installation system. There are multiple cross beams and columns in the photovoltaic installation system, and the cross beams and columns are perpendicularly connected to each other; first aluminum alloy male frames and first aluminum alloy female frames are respectively arranged on two opposite side walls of a single installation unit, and second aluminum alloy male frames and second aluminum alloy female frames are respectively arranged on the other two opposite side walls of a single installation unit; the first aluminum alloy male frame and the first aluminum alloy female frame of two adjacent installation units are inserted and connected to form the column, and the second aluminum alloy male frame and the second aluminum alloy female frame of two adjacent installation units are inserted and connected to form the cross beam.

[0007] Furthermore: a beam drainage groove is provided inside the beam, and a drainage channel is provided inside the column. The drainage channel and the beam drainage groove communicate with each other at the cross-connection node of the beam and the column. The drainage channel is connected to the outside at the end, serving as an outward drainage facility for the photovoltaic installation system.

[0008] Furthermore: the front and rear two columns at the cross-connection node are connected by a water guiding profile at the connection gap. The front end and the rear end of the water guiding profile are respectively and hermetically connected to the two drainage channels of the two columns. The water guiding profile opens upward, and the outlets of the beam drainage grooves of the two beams at the cross-connection node are directly above the opening of the water guiding profile.

[0009] Furthermore: the second aluminum alloy male frame has a limiting member, and the second aluminum alloy female frame has a groove matching the limiting member. The limiting member is inserted and connected with the groove to form the beam drainage groove; the first aluminum alloy male frame is provided with a plug, and the first aluminum alloy female frame is provided with a socket matching the plug. The plug and the socket are inserted and connected.

[0010] Furthermore: both ends of the limiting member protrude outward from the second aluminum alloy male frame. The first ends of the first aluminum alloy male frame and the first aluminum alloy female frame are provided with limiting grooves matching the limiting member, and the limiting grooves are inserted and connected with the limiting member; the second ends of the first aluminum alloy male frame and the first aluminum alloy female frame are in contact with the protruding surfaces of the corresponding limiting members.

[0011] Furthermore: the first aluminum alloy female frame and the first aluminum alloy male frame are inserted and connected to form a cavity opening upward. The cavity is above the drainage channel and communicates with the drainage channel. Holes for the photovoltaic panel to route wires are correspondingly provided on the side wall of the cavity, and the holes communicate with the cavity.

[0012] Furthermore: vertical plates are connected to the tops of both the first aluminum alloy female frame and the first aluminum alloy male frame. Two adjacent vertical plates are combined to form a long strip-shaped notch opening upward and communicating with the cavity. A detachable waterproof rubber strip is provided on the top surface of the long strip-shaped notch.

[0013] Furthermore: the bottom of the first aluminum alloy female frame is provided with an aluminum alloy elongation edge that continuously bends upward. The first aluminum alloy male frame is provided with a folded edge matching the aluminum alloy profile elongation edge. The aluminum alloy elongation edge and the folded edge match to form the drainage channel, and the shape of the water guiding profile matches the aluminum alloy elongation edge.

[0014] Furthermore: connecting plates are connected to the tops of both the second aluminum alloy male frame and the second aluminum alloy female frame, and a sealant is connected between two adjacent connecting plates.

[0015] Further: The installation unit includes a photovoltaic panel and a rock wool sandwich panel. The photovoltaic panel and the rock wool sandwich panel in a single installation unit are fixed on the corresponding first aluminum alloy male frame, first aluminum alloy female frame, second aluminum alloy male frame, and second aluminum alloy female frame.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] The present invention eliminates the aluminum alloy guide rail, splices several installation units to form a photovoltaic installation system, and supports the entire installation system through columns and beams, simplifying the installation steps, improving efficiency, and facilitating the disassembly of the photovoltaic panel in the later stage. The present invention is provided with a waterproof rubber strip and a drainage cavity for double protection to prevent rainwater from leaking into the interior of the installation unit and damaging the circuit. The present invention is provided with a drainage channel, and the drainage of the cross beam and the column is interconnected at the cross connection node and discharged outward through the drainage channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic cross-sectional structure diagram of the present invention;

[0019] Figure 2 is a schematic longitudinal-sectional structure diagram of the present invention;

[0020] Figure 3 is an assembly schematic diagram of the water guide profile of the present invention;

[0021] Figure 4 is Figure 1 a partial enlarged view of A in

[0022] Figure 5 is Figure 2 a partial enlarged view of B in

[0023] Figure 6 is Figure 3 a partial enlarged view of C in

[0024] Figure 7 is a connection node diagram of the column and the cross beam;

[0025] Figure 8 is a structural schematic diagram of the water guide profile;

[0026] Figure 9 is a structural schematic diagram of the second aluminum alloy male frame;

[0027] Figure 10 is an assembly drawing of the first aluminum alloy female frame and the first aluminum alloy male frame;

[0028] Figure 11 is an assembly drawing of the water guide profile, the first aluminum alloy female frame, and the first aluminum alloy male frame;

[0029] Figure 12 It is an assembly drawing of the second aluminum alloy male frame and the first aluminum alloy male frame;

[0030] Figure 13 It is an assembly drawing of the present invention.

[0031] Reference numerals: 1 - roof purlin; 2 - installation unit; 3 - cross beam; 4 - column; 5 - first aluminum alloy male frame; 6 - first aluminum alloy female frame; 7 - second aluminum alloy male frame; 8 - second aluminum alloy female frame; 9 - cross beam drain trough; 10 - drainage channel; 11 - water guiding profile; 12 - limiting member; 13 - groove; 14 - plug; 15 - socket; 16 - limiting groove; 17 - wire; 18 - cavity; 19 - hole; 20 - photovoltaic panel; 21 - vertical plate; 22 - long strip notch; 23 - waterproof rubber strip; 24 - aluminum alloy extended edge; 25 - folded edge; 26 - connecting plate; 27 - buffer rubber strip; 28 - T-shaped bolt; 29 - first wall surface; 30 - second wall surface; 31 - reinforcing member; 32 - L-shaped connecting member; 33 - screw; 34 - rock wool sandwich panel; 35 - bolt connection hole. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation manners of the present invention will be described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation to the present invention; for better illustration of this embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation to the present invention.

[0033] The present invention will be further described below in conjunction with the drawings and embodiments, but it is not used as a basis for limiting the present invention.

[0034] As Figures 1 to 13 shown, a unitary photovoltaic panel connection structure for roof installation includes a plurality of installation units 2 located above the roof purlin 1. A plurality of installation units 2 are spliced to form a photovoltaic installation system. The photovoltaic installation system has a plurality of cross beams 3 and columns 4, and the cross beams 3 and columns 4 are perpendicularly connected to each other; a first aluminum alloy male frame 5 and a first aluminum alloy female frame 6 are respectively arranged on two opposite side walls of a single installation unit 2, and a second aluminum alloy male frame 7 and a second aluminum alloy female frame 8 are respectively arranged on the other two opposite side walls of a single installation unit 2; the first aluminum alloy male frame 5 and the first aluminum alloy female frame 6 of adjacent two installation units 2 are plugged and connected to form the column 4, and the second aluminum alloy male frame 7 and the second aluminum alloy female frame 8 of adjacent two installation units 2 are plugged and connected to form the cross beam 3.

[0035] Inside the cross beam 3, there is a cross beam drainage groove 9, and inside the column 4, there is a drainage channel 10. The drainage channel 10 and the cross beam drainage groove 9 are interconnected at the cross connection node of the cross beam 3 and the column 4. The drainage channel 10 is connected to the outside at the end, serving as the outward drainage facility of the photovoltaic installation system.

[0036] The front and rear two columns 4 at the cross connection node are connected by a water guiding profile 11 at the connection gap. The front end and the rear end of the water guiding profile 11 are respectively and hermetically connected to the two drainage channels 10 of the two columns 4. Weather resistant glue can be used for sealing treatment. The water guiding profile 11 opens upward, and the water outlet of the cross beam drainage groove 9 of the two cross beams 3 at the cross connection node is directly above the opening of the water guiding profile 11.

[0037] The second aluminum alloy male frame 7 is provided with a limiting member 12, and the second aluminum alloy female frame 8 is provided with a groove 13 matching the limiting member 12. The limiting member 12 is inserted and connected with the groove 13, and the cross beam drainage groove 9 is formed. That is, by inserting and connecting the limiting member 12 with the groove 13, while connecting the second aluminum alloy male frame 7 and the second aluminum alloy female frame 8, the cross beam drainage groove 9 is connected to the drainage channel 10; the first aluminum alloy male frame 5 is provided with a plug 14, and the first aluminum alloy female frame 6 is provided with a socket 15 matching the plug 14. The plug 14 and the socket 15 are inserted and connected. A buffer rubber strip 27 is connected between the plug 14 and the socket 15. The buffer rubber strip 27 prevents collision and hard contact between the profiles when the plug 14 and the socket 15 are connected; the connection node of the plug 14 and the socket 15 is between the cavity 18 and the drainage channel 10. After the water leakage at the connection of the waterproof rubber strip 23 enters the cavity 18, it flows along the flat plate at the top of the socket 15 to the cross connection node and flows into the drainage channel 10 through the gap of the cross connection node.

[0038] Both ends of the limiting member 12 protrude outward from the second aluminum alloy male frame 7 and are part of the second aluminum alloy male frame 7. The first ends of the first aluminum alloy male frame 5 and the first aluminum alloy female frame 6 are provided with limiting grooves 16 matching the limiting member 12. The limiting grooves 16 are inserted and connected with the limiting member 12; the second ends of the first aluminum alloy male frame 5 and the first aluminum alloy female frame 6 are in contact with the protruding surfaces of the corresponding limiting members 12. The limiting member 12 is directly above the opening of the water guiding profile 11.

[0039] The first aluminum alloy female frame 6 and the first aluminum alloy male frame 5 are connected by plugging to form a cavity 18 with an upward opening. The cavity 18 is located above the drainage channel 10 and is communicated with the drainage channel 10. A hole 19 for the photovoltaic panel 20 to route wires is correspondingly opened on the side wall of the cavity 18, and the hole 19 is communicated with the cavity 18. The wire 17 led out from the junction box of the photovoltaic panel 20 is provided with a connector at the end, and is connected to the wire 17 led out from the junction box of another photovoltaic panel 20 through the connector. The connector is located inside the cavity 18. A bolt connection groove is opened at the bottom of the first aluminum alloy female frame 6, and the bolt connection groove and the roof purlin 1 are fixedly connected by a T-shaped bolt 28.

[0040] Vertical plates 21 are connected to the tops of both the first aluminum alloy female frame 6 and the first aluminum alloy male frame 5. Two adjacent vertical plates 21 are combined to form a long strip-shaped notch 22 with an upward opening and communicated with the cavity 18. A detachable waterproof rubber strip 23 is provided on the top surface of the long strip-shaped notch 22. The waterproof rubber strip 23 is of a cap type and can be disassembled. The waterproof rubber is connected in multiple segments in sequence on the top surface of the long strip-shaped notch 22, and there will be a small amount of water leakage at the interface between adjacent waterproof rubber strips 23, thus entering the cavity 18.

[0041] An aluminum alloy extension edge 24 that bends continuously upward is provided at the bottom of the first aluminum alloy female frame 6. The first aluminum alloy male frame 5 is provided with a folded edge 25 that matches the aluminum alloy extension edge 24. The aluminum alloy extension edge 24 and the folded edge 25 match to form the drainage channel 10. The shape of the water guiding profile 11 matches that of the aluminum alloy extension edge 24. That is, the water guiding profile 11 has a first wall surface 29 that bends continuously upward and a second wall surface 30 arranged in an L shape. During assembly, the first wall surface 29 fits with the wall surface of the aluminum alloy extension edge 24, and the second wall surface 30 fits with the inner wall surface of the socket 15.

[0042] Connection plates 26 are connected to the tops of both the second aluminum alloy male frame 7 and the second aluminum alloy female frame 8. A sealant is connected between two adjacent connection plates 26.

[0043] A plurality of bolt connection holes 35 are provided inside the second aluminum alloy male frame 7 and the second aluminum alloy female frame 8. During connection, when the two ends of the second aluminum alloy male frame 7 and the second aluminum alloy female frame 8 are attached to the side walls of the corresponding first aluminum alloy female frame 6 and the first aluminum alloy male frame 5, bolts are inserted into the bolt connection holes 35 to connect the second aluminum alloy male frame 7, the second aluminum alloy female frame 8, the first aluminum alloy female frame 6, and the first aluminum alloy male frame 5.

[0044] The photovoltaic panel 20 in a single installation unit 2 is fixed to the corresponding first aluminum alloy male frame 5, first aluminum alloy female frame 6, second aluminum alloy male frame 7 and second aluminum alloy female frame 8. The rock wool sandwich panel 34 in the single installation unit 2 is connected to the corresponding first aluminum alloy male frame 5, first aluminum alloy female frame 6, second aluminum alloy male frame 7 and second aluminum alloy female frame 8. L-shaped connectors 32 are provided on the first aluminum alloy male frame 5, first aluminum alloy female frame 6, second aluminum alloy male frame 7 and second aluminum alloy female frame 8. The rock wool sandwich panel 34 is fixedly connected to the L-shaped connectors 32 by screws 33, so as to be fixed to the first aluminum alloy male frame 5, first aluminum alloy female frame 6, second aluminum alloy male frame 7 and second aluminum alloy female frame 8. A reinforcing member 31 is connected between the bottom of the photovoltaic panel 20 and the top of the rock wool sandwich panel 34.

[0045] Based on the description and drawings of the present invention, those skilled in the art can easily manufacture or use a unitary photovoltaic panel connection structure for roof installation of the present invention and can achieve the positive effects recorded in the present invention.

[0046] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention falls within the protection scope of the present invention.

Claims

1. A unitized photovoltaic panel connection structure for roof installation, characterized in that: It includes several installation units (2) located above the roof purlins (1). The several installation units (2) are spliced to form a photovoltaic installation system. There are multiple cross beams (3) and columns (4) in the photovoltaic installation system, and the cross beams (3) and columns (4) are perpendicularly connected to each other. On two opposite side walls of a single installation unit (2), a first aluminum alloy male frame (5) and a first aluminum alloy female frame (6) are respectively arranged. On the other two opposite side walls of a single installation unit (2), a second aluminum alloy male frame (7) and a second aluminum alloy female frame (8) are respectively arranged. The first aluminum alloy male frame (5) and the first aluminum alloy female frame (6) of two adjacent installation units (2) are plugged and connected to form the column (4), and the second aluminum alloy male frame (7) and the second aluminum alloy female frame (8) of two adjacent installation units (2) are plugged and connected to form the cross beam (3). A cross beam drain groove (9) is arranged inside the cross beam (3), and a drain channel (10) is arranged inside the column (4). The drain channel (10) and the cross beam drain groove (9) are communicated with each other at the cross connection node of the cross beam (3) and the column (4). The drain channel (10) is connected to the outside at the end as an outward drainage facility of the photovoltaic installation system. The front and rear two columns (4) at the cross connection node are connected through a water guiding profile (11) at the connection gap. The front end and the rear end of the water guiding profile (11) are respectively and hermetically connected to the two drain channels (10) of the two columns (4). The water guiding profile (11) opens upward, and the water outlet of the cross beam drain groove (9) of the two cross beams (3) at the cross connection node is directly above the opening of the water guiding profile (11). The second aluminum alloy male frame (7) is provided with a limiting member (12), and the second aluminum alloy female frame (8) is provided with a groove (13) matching the limiting member (12). The limiting member (12) is plugged and connected with the groove (13) to form the cross beam drain groove (9). The first aluminum alloy male frame (5) is provided with a plug (14), and the first aluminum alloy female frame (6) is provided with a socket (15) matching the plug (14). The plug (14) and the socket (15) are plugged and connected. Both ends of the limiting member (12) protrude outward from the second aluminum alloy male frame (7). The first ends of the first aluminum alloy male frame (5) and the first aluminum alloy female frame (6) are provided with limiting grooves (16) matching the limiting member (12), and the limiting grooves (16) are plugged and connected with the limiting member (12). The second ends of the first aluminum alloy male frame (5) and the first aluminum alloy female frame (6) are in contact with the protruding surfaces of the corresponding limiting members (12). Vertical plates (21) are connected to the tops of the first aluminum alloy female frame (6) and the first aluminum alloy male frame (5). Two adjacent vertical plates (21) are combined to form a long strip-shaped notch (22) opening upward and communicating with the cavity (18). A detachable waterproof rubber strip (23) is arranged on the top surface of the long strip-shaped notch (22). The bottom of the first aluminum alloy female frame (6) is provided with an upward continuously bent aluminum alloy extension edge (24). The first aluminum alloy male frame (5) is provided with a folded edge (25) matching the aluminum alloy extension edge (24). The aluminum alloy extension edge (24) and the folded edge (25) are matched to form the drainage channel (10). The shape of the water guiding profile (11) matches that of the aluminum alloy extension edge (24). The tops of the second aluminum alloy male frame (7) and the second aluminum alloy female frame (8) are both connected with connecting plates (26), and a sealant is connected between two adjacent connecting plates (26). The first aluminum alloy female frame (6) and the first aluminum alloy male frame (5) are inserted and connected to form a cavity (18) with an upward opening. The cavity (18) is located above the drainage channel (10) and is communicated with the drainage channel (10). A hole (19) for the photovoltaic panel (20) to route wires is correspondingly formed in the side wall of the cavity (18), and the hole (19) is communicated with the cavity (18).

2. The unitized photovoltaic panel connection structure for roof installation according to claim 1, characterized in that: The installation unit (2) includes a photovoltaic panel (20) and a rock wool sandwich panel (34). The photovoltaic panel (20) and the rock wool sandwich panel (34) in a single installation unit (2) are fixed on the corresponding first aluminum alloy male frame (5), first aluminum alloy female frame (6), second aluminum alloy male frame (7) and second aluminum alloy female frame (8).

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