Building integrated photovoltaic integrated structure

Abstract

The utility model relates to the technical field of photovoltaic panel design, in particular to a building integrated photovoltaic integrated structure, which is technically characterized by comprising a plurality of photovoltaic panels arranged on a slope roof, connecting guide rails and fixing grooves, the connecting guide rails are located between adjacent photovoltaic panels arranged in the direction of the inclined plane of the slope roof, and the side edges, pointing to the adjacent photovoltaic panels, of the connecting guide rails are provided with L-shaped corners and U-shaped openings correspondingly, and the L-shaped corners and the U-shaped openings are used for abutting against and fixing the side edges of the photovoltaic panels. And the fixing groove is used for fixing the connecting guide rail on the slope roof. The photovoltaic module is clamped in the clamping port of the special-shaped connecting guide rail of the pitched roof, and then the special-shaped connecting guide rail and the pitched roof are fixed through the fixing screw, so that photovoltaic and building structure integration is realized, and the installation cost of the whole structure is effectively reduced; and secondly, the upper photovoltaic module and the lower photovoltaic module are connected through the imbricated special-shaped connecting guide rail so as to be attached more tightly.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel design technology, specifically to a building-integrated photovoltaic structure. Background Technology

[0002] BIPV (Building Integrated Photovoltaics) is a technology that integrates photovoltaic (PV) modules with building structures, aiming to achieve energy self-sufficiency and green sustainable development in buildings. PV modules have extremely wide applications, ranging from ordinary residential buildings to large commercial buildings. In the residential sector, BIPV technology allows rooftops, exterior walls, and even windows to become "green factories" for power generation, effectively reducing household electricity costs and improving quality of life. In the commercial building sector, such as shopping malls, office buildings, and stadiums, the integrated application of PV modules has become an important means of improving building energy efficiency and showcasing a company's green image.

[0003] Photovoltaic modules are typically fixed to the existing building roof using specific installation methods, such as W-shaped water channels, while simultaneously serving a drainage function. This is a common BIPV (Building Integrated Photovoltaics) structural design. However, this design also has some significant drawbacks, particularly the stability of the W-shaped water channel structure. Because the W-shaped water channel is an unstable structure, prolonged exposure to the weight of the photovoltaic modules and external environmental factors can easily lead to deformation, thereby affecting the fixation effectiveness of the photovoltaic modules and the building's drainage function. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model lies in the technical problems existing in the BIPV integrated structural design in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A building-integrated photovoltaic (BIPV) structure includes a plurality of photovoltaic panels arranged on a sloping roof. It also includes connecting rails and fixing grooves. The connecting rails are located between adjacent photovoltaic panels arranged along the sloping surface of the roof. The sides of the connecting rails pointing towards adjacent photovoltaic panels are respectively provided with L-shaped corners and U-shaped openings for supporting and fixing the sides of the photovoltaic panels. The fixing grooves are used to fix the connecting rails to the sloping roof.

[0007] Preferably, the photovoltaic panel is a rectangular plate, and the photovoltaic panel extends downward from both ends along the inclined direction of the sloping roof to form an extension, and the extension has an L-shaped cross-section in the vertical direction.

[0008] Preferably, the connecting guide rail includes a base, the base having a U-shaped cross-section in the vertical direction with the opening pointing downwards, and limiting portions extending outwards from both sides of the U-shaped opening of the base, the base being connected to the fixing groove through the limiting portions.

[0009] Preferably, the connecting guide rail includes a bent portion located above the base. The bent portion has an L-shaped cross-section in the vertical direction, and a U-shaped opening is formed between the bent portion and the base for fixing one end of the photovoltaic panel.

[0010] Preferably, the vertical edge of the bent portion is located at one end of the width direction of the base, the vertical edge of the bent portion is connected to the base, the vertical edge of the bent portion is inclined, the horizontal edge of the bent portion is located above the vertical edge of the bent portion, and the horizontal edge of the bent portion is located on the side of the vertical edge of the bent portion pointing towards the base.

[0011] Preferably, the abutting part is located above the bending part, the abutting part extends upward, the abutting part is perpendicular to the horizontal side of the bending part, and is located at the end of the horizontal side of the bending part away from the vertical side, and abuts one side of the photovoltaic panel through the L-shaped corner formed between the horizontal side of the bending part and the abutting part.

[0012] Preferably, a fastening part is provided above the horizontal edge of the bent portion at the end opposite to the supporting portion. The fastening part is L-shaped, and the vertical edge of the L-shape on the fastening part extends along the height direction of the vertical edge of the bent portion. The distance between the horizontal edge of the fastening part and the horizontal edge of the bent portion is equal to the thickness of the extension portion. The distance between the vertical edge of the fastening part and the supporting portion is equal to the width of the horizontal edge of the extension portion.

[0013] Preferably, the fixing groove is U-shaped with the opening facing upwards, and the opening of the fixing groove is bent inwards to form a limiting plate. The limiting plate is used to abut against the upper part of the limiting part. The fixing groove is also provided with a fixing screw, which passes through the fixing groove and is embedded in the sloping roof. The fixing screw is also provided with a washer and a nut.

[0014] The aforementioned building-integrated photovoltaic (BIPV) structure integrates photovoltaic modules with the roof's irregularly shaped connecting rails by snapping the photovoltaic modules into the mounting interfaces. The irregularly shaped connecting rails are then fixed to the roof using fixing screws, thus achieving integration of photovoltaics and the building structure and effectively reducing the overall installation cost. Furthermore, the use of shingled irregularly shaped connecting rails to connect the upper and lower photovoltaic modules ensures a tighter fit, effectively improving the overall waterproof performance of the structure and enhancing its thermal insulation and heat insulation properties. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the building-integrated photovoltaic structure according to one embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of a building-integrated photovoltaic structure according to one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram showing the connection between the building-integrated photovoltaic structure and the photovoltaic panel in one embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the connection between the guide rail and the fixing groove on the building-integrated photovoltaic structure according to one embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram showing the disassembled connection between the guide rail and the fixing groove on the building-integrated photovoltaic structure according to one embodiment of the present invention.

[0020] In the diagram, 1 is the photovoltaic panel; 11 is the extension; 12 is the T-shaped sealing strip; 2 is the connecting rail; 21 is the base; 211 is the limiting part; 22 is the bending part; 221 is the fastening part; 23 is the supporting part; 3 is the fixing groove; 31 is the limiting plate; 32 is the fixing screw; 321 is the gasket; 322 is the nut; and 4 is the sloping roof. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 2 A building-integrated photovoltaic (BIPV) structure includes a photovoltaic panel 1, a connecting rail 2, and a fixing groove 3. The connecting rail 2 is fixed on a sloping roof 4. The photovoltaic panels 1 are arranged on the sloping roof 4, and adjacent photovoltaic panels 1 arranged along the inclined surface of the sloping roof 4 are fixed together by the connecting rail 2. The fixing groove 3 is used to fix the connecting rail 2.

[0023] Please see Figure 1 and Figure 2 In one embodiment, the photovoltaic panel 1 is arranged in the form of a cuboid plate. The tilt angle of the photovoltaic panel 1 is slightly smaller than the tilt angle of the sloping roof 4. A T-shaped sealing strip 12 is provided between the photovoltaic panels 1 arranged along the length direction of the sloping roof 4. The T-shaped sealing strip 12 seals the gaps between adjacent photovoltaic panels 1 to prevent rainwater from flowing into the roof through the gaps between the photovoltaic panels 1.

[0024] Please see Figure 1 and Figure 2Adjacent photovoltaic panels 1 arranged along the inclined direction of the sloping roof 4 are connected by connecting rails 2. In one embodiment, please refer to... Figure 2 and Figure 3 The photovoltaic panel 1 extends downwards from both ends along the inclined direction of the sloping roof 4 to form extension portions 11. The photovoltaic panel 1 is fixed by engaging with the connecting rail 2 through the extension portions 11. The extension portion 11 has an L-shaped cross-section in the vertical direction.

[0025] Please see Figure 3 and Figure 4 The connecting guide rail 2 is an irregularly shaped connecting guide rail 2, which includes a base 21, a bent part 22 and a supporting part 23. The base 21 has a U-shaped cross-section in the vertical direction and the opening points downward. Limiting parts 211 extend outward from both sides of the U-shaped opening of the base 21. The base 21 is connected to the fixing groove 3 through the limiting parts 211.

[0026] The bent portion 22 is located above the base 21. The bent portion 22 has an L-shaped cross-section in the vertical direction. A U-shaped opening is formed between the bent portion 22 and the base 21 for fixing one end of the photovoltaic panel 1. The vertical side of the bent portion 22 is located at one end of the width direction of the base 21, and the vertical side of the bent portion 22 is connected to the base 21. The vertical side of the bent portion 22 is inclined, and the inclination angle of the vertical side of the bent portion 22 is the same as the inclination angle of the vertical side of the extension portion 11. The horizontal side of the bent portion 22 is located above the vertical side of the bent portion 22. The horizontal side of the bent portion 22 is located on the side of the vertical side of the bent portion 22 pointing towards the base 21, and the inclination angle of the horizontal side of the bent portion 22 is the same as the inclination angle of the photovoltaic panel 1. In one embodiment, the vertical side and the horizontal side of the bent portion 22 are perpendicular to each other. During the fixing process, one side of the photovoltaic panel 1 is embedded in the U-shaped opening formed between the base 21 and the bent part 22.

[0027] The supporting part 23 is located above the bending part 22 and extends upward. In one embodiment, the supporting part 23 is arranged perpendicular to the horizontal side of the bending part 22 and is located at the end of the horizontal side of the bending part 22 away from the vertical side. The L-shaped corner formed between the horizontal side of the bending part 22 and the supporting part 23 supports one side of the photovoltaic panel 1.

[0028] In one embodiment, in order to achieve stable fixing of the photovoltaic panel 1, a fastening part 221 is provided above the horizontal side of the bent portion 22 at the end opposite to the supporting portion 23. The fastening part 221 is L-shaped, and the vertical side of the L-shape on the fastening part 221 extends along the height direction of the vertical side of the bent portion 22. The horizontal side of the fastening part 221 and the horizontal side of the bent portion 22 point in the same direction. The distance between the horizontal side of the fastening part 221 and the horizontal side of the bent portion 22 is equal to the thickness of the extension portion 11. The distance between the vertical side of the fastening part 221 and the supporting portion 23 is equal to the width of the horizontal side of the extension portion 11.

[0029] Please see Figure 4 and Figure 5 The fixing groove 3 is used to fix the connecting guide rail 2. In one embodiment, the fixing groove 3 is U-shaped with the opening facing upwards. The opening of the fixing groove 3 is bent inwards to form a limiting plate 31. The limiting plate 31 is used to abut against the upper part of the limiting part 211 to achieve mutual fixation between the fixing groove 3 and the connecting guide rail 2. In one embodiment, a fixing screw 32 is also provided on the fixing groove 3. The fixing screw 32 passes through the fixing groove 3 and is embedded in the sloping roof 4. A washer 321 and a nut 322 are also provided on the fixing screw 3 to stabilize the fixing groove 3.

[0030] Installation process:

[0031] First, the fixing screw 32 is inserted into the sloping roof 4 in a direction perpendicular to the sloping roof 4, exposing the part used to fix the fixing groove 3. The fixing groove 3 is then fitted onto the fixing screw 32, and the fixing groove 3 is fixed to the sloping roof 4 by the nut 322 and the washer 321.

[0032] The connecting guide rail 2 is slid along the length of the fixed groove 3 to a predetermined position by sliding; the photovoltaic panel 1 is then slid along the length of the connecting guide rail 2 by sliding, so as to embed the photovoltaic panel 1 on the opposite side of the two connecting guide rails 2.

[0033] The building-integrated photovoltaic (BIPV) structure provided in this application integrates photovoltaic modules with the building structure by snapping the photovoltaic modules onto the interface of the irregularly shaped connecting rail 2 on the pitched roof, and then fixing the irregularly shaped connecting rail 2 to the pitched roof with fixing screws 32, thereby effectively reducing the overall structural installation cost. Secondly, by connecting the upper and lower photovoltaic modules with the shingled irregularly shaped connecting rail 2, the fit between them is made tighter, which effectively improves the waterproof performance of the overall structure and makes the overall thermal insulation and heat insulation more complete.

Claims

1. A building-integrated photovoltaic (BIPV) structure, comprising a plurality of photovoltaic panels arranged on a sloping roof, characterized in that: It also includes connecting rails and fixing grooves. The connecting rails are located between adjacent photovoltaic panels arranged along the inclined surface of the sloping roof. The connecting rails are provided with L-shaped corners and U-shaped openings on the sides of the adjacent photovoltaic panels to support and fix the sides of the photovoltaic panels. The fixing grooves are used to fix the connecting rails on the sloping roof.

2. The building-integrated photovoltaic (BIPV) structure according to claim 1, characterized in that: The photovoltaic panel is arranged in the form of a cuboid plate, and the photovoltaic panel extends downward from both ends along the inclined direction of the sloping roof to form an extension. The vertical cross-section of the extension is arranged in an L shape.

3. The building-integrated photovoltaic (BIPV) structure according to claim 2, characterized in that: The connecting guide rail includes a base, the base having a U-shaped cross-section in the vertical direction with the opening pointing downwards, and limiting portions extending outwards from both sides of the U-shaped opening of the base, the base being connected to the fixing groove through the limiting portions.

4. The building-integrated photovoltaic (BIPV) structure according to claim 3, characterized in that: The connecting guide rail includes a bent portion located above the base. The bent portion has an L-shaped cross-section in the vertical direction, and a U-shaped opening is formed between the bent portion and the base for fixing one end of the photovoltaic panel.

5. The building-integrated photovoltaic (BIPV) structure according to claim 4, characterized in that: The vertical edge of the bent portion is located at one end of the width direction of the base. The vertical edge of the bent portion is connected to the base. The vertical edge of the bent portion is inclined. The horizontal edge of the bent portion is located above the vertical edge of the bent portion. The horizontal edge of the bent portion is located on the side of the base where the vertical edge of the bent portion points.

6. The building-integrated photovoltaic (BIPV) structure according to claim 5, characterized in that: The connecting guide rail also includes a supporting part, which is located above the bending part and extends upward. The supporting part is perpendicular to the horizontal side of the bending part and is located at the end of the horizontal side of the bending part away from the vertical side. The L-shaped corner formed between the horizontal side of the bending part and the supporting part supports one side of the photovoltaic panel.

7. The building-integrated photovoltaic (BIPV) structure according to claim 6, characterized in that: A fastening part is provided above the horizontal edge of the bent portion at the end opposite to the supporting portion. The fastening part is L-shaped, and the vertical edge of the L-shape on the fastening part extends along the height direction of the vertical edge of the bent portion. The distance between the horizontal edge of the fastening part and the horizontal edge of the bent portion is equal to the thickness of the extension portion. The distance between the vertical edge of the fastening part and the supporting portion is equal to the width of the horizontal edge of the extension portion.

8. The building-integrated photovoltaic (BIPV) structure according to claim 7, characterized in that: The fixing groove is U-shaped with the opening facing upward. The opening of the fixing groove is bent inward to form a limiting plate. The limiting plate is used to abut against the upper part of the limiting part. The fixing groove is also provided with a fixing screw. The fixing screw passes through the fixing groove and is embedded in the sloping roof. The fixing screw is also provided with a washer and a nut.

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