A type of BIPV roofing panel
By adopting a snap-fit structure for BIPV roofing units and supporting purlins, the problems of poor waterproofing and complex installation caused by drilling holes in the surface of color steel tiles are solved, thus simplifying the installation process, reducing costs, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI KEDA INTELLIGENT ENERGY TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-26
AI Technical Summary
The existing BIPV roof panels require drilling holes in the corrugated steel sheet surface to install screws during installation, resulting in poor waterproofing, complicated installation, and high cost.
By adopting a roof tile unit and a support snap-fit structure, and through the support purlins and snap-fit structure, using the edge buckle and the central concealed buckle bracket, multiple roof tile units are snapped together using a special snap-fit method, forming a closed structure, thus solving this problem.
It improves waterproof performance, simplifies the installation process, reduces production costs, and extends service life.
Smart Images

Figure CN224281771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of BIPV roofing panel technology, specifically a BIPV roofing panel. Background Technology
[0002] Building-integrated photovoltaics (BIPV) involves installing solar photovoltaic arrays on the exterior surface of a building's envelope to provide electricity. This method not only meets the building's own electricity needs and reduces reliance on the traditional power grid, but also feeds excess electricity back into the grid, achieving efficient energy utilization. Compared to traditional photovoltaic systems, BIPV roof panels are more tightly integrated with the building, functioning as an integral part of the structure and combining the dual functions of power generation and building materials, achieving a good balance between aesthetics and practicality.
[0003] Currently, when installing BIPV roof panels, it is necessary to use saddle clips to support the drainage channel, and then use self-tapping screws to fix the saddle clips to the surface of the corrugated steel sheet, and connect the self-tapping screws to the threaded support beam. In addition, photovoltaic brackets need to be installed on the surface of the corrugated steel sheet to support the photovoltaic modules.
[0004] Because drilling holes in the corrugated steel sheet surface to install screws results in poor waterproofing of the entire BIBV roof, and the additional installation of photovoltaic brackets complicates the entire BIBV roof installation process, leading to low installation efficiency and increased costs due to the large number of parts, we propose a BIPV roof panel. Utility Model Content
[0005] The purpose of this invention is to provide a BIPV roof panel to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a BIPV roof panel, comprising multiple roof tile units and supporting purlins, wherein the supporting purlins are roof support components, the multiple roof tile units are interlocked at their left and right ends and laid on the surfaces of two supporting purlins, each roof tile unit has two edge fastener brackets interlocked at its left outer side, and each roof tile unit also has two edge fastener brackets interlocked at its right inner side, each roof tile unit has two central concealed fastener brackets interlocked at its lower middle surface, and each roof tile unit has two water channel fasteners corresponding to the central concealed fastener brackets interlocked at its upper middle surface, and the water channel fasteners can be used to fix and install photovoltaic modules, wherein the edge fastener brackets and the central concealed fastener brackets are all fixedly installed on the upper surface of the supporting purlins by self-tapping screws.
[0007] Preferably, the roof tile unit includes several cold-bent corrugations with a crest height between 50mm and 55mm.
[0008] Preferably, the roof tile unit further includes a left bend, a right bend, and a central raised portion, all of which are cold-formed.
[0009] Preferably, the left bend is bent twice, upward and to the right, and the right bend is bent three times, upward, to the right and downward, and the cross-section of the central bulge is inverted convex.
[0010] Preferably, the material of the top tile unit is zinc-aluminum-magnesium alloy, specifically model SCS51D+275.
[0011] Preferably, the water tank clamp includes a gate-shaped clamping plate, an inner clamping plate, and a rivet nut. The inner clamping plate is fixedly connected to both sides of the inner wall of the gate-shaped clamping plate, and the inner clamping plate is interlocked with both sides of the central raised portion. The rivet nut is riveted to the upper end of the central raised portion and is used to connect with the bolts for fixing the photovoltaic module.
[0012] Beneficial effects
[0013] This utility model provides a BIPV roofing panel, which has the following beneficial effects:
[0014] This BIPV roof panel supports the photovoltaic (PV) roof tile units through edge fasteners, central concealed fasteners, and supporting purlins. Multiple roof tile units can be interlocked at both ends to form a closed structure, effectively preventing rainwater leakage. Water channel interlocking supports the PV modules. The entire roof tile unit requires no drilling or screw installation, significantly improving waterproofing. Its simple overall structure saves production costs, making it suitable for mass production and widespread adoption. The interlocking installation method greatly simplifies the installation process and improves efficiency.
[0015] 2. The material of the BIPV roof panel, the Keding tile unit, is zinc-aluminum-magnesium alloy, specifically model SCS51D+275. This design effectively improves the structural strength of the Keding tile unit, enabling it to last for 25 years, matching the 25-year lifespan of photovoltaic panels on the market. This avoids the situation where the BIPV roof panel has insufficient lifespan and requires disassembly and maintenance later. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a BIPV roof panel proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the overall exploded structure of a BIPV roof panel proposed in this utility model;
[0018] Figure 3 This is a front view structural diagram of a BIPV roofing panel roof tile unit proposed in this utility model;
[0019] Figure 4 This utility model proposes a BIPV roofing panel. Figure 3 Schematic diagram of the enlarged structure of A in the middle;
[0020] Figure 5 This utility model proposes a BIPV roofing panel. Figure 3 Schematic diagram of the enlarged structure of B;
[0021] Figure 6 This utility model proposes a BIPV roofing panel. Figure 3 A schematic diagram of the enlarged C-shaped structure.
[0022] In the diagram: 1. Top tile unit; 2. Support purlin; 3. Side fastener bracket; 4. Central concealed fastener bracket; 5. Water trough clip; 6. Self-tapping screw; 7. Corrugated; 8. Left bend; 9. Right bend; 10. Central raised section; 11. Door-shaped clip; 12. Inner clip; 13. Rivet nut. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a BIPV roof panel, including multiple roof tile units 1 and supporting purlins 2. The supporting purlins 2 are roof support components. The multiple roof tile units 1 are interlocked at their left and right ends and laid on the surfaces of the two supporting purlins 2. Two edge fastener brackets 3 are interlocked on the outer left end of each roof tile unit 1, and two edge fastener brackets 3 are also interlocked on the inner right end of each roof tile unit 1. Two central concealed fastener brackets 4 are interlocked on the lower middle surface of each roof tile unit 1, and two water channel fasteners 5 corresponding to the central concealed fastener brackets 4 are interlocked on the upper middle surface of each roof tile unit 1. The water channel fasteners 5 can be used to fix and install photovoltaic modules. The edge fastener brackets 3 and the central concealed fastener brackets 4 are all fixedly installed on the upper surface of the supporting purlins 2 by self-tapping screws 6.
[0025] By setting up the side fastener bracket 3, the central concealed fastener bracket 4, and the support purlin 2, the KEDO roof tile unit 1 can be supported. Multiple KEDO roof tile units 1 can be interlocked at both ends to form a closed structure, effectively preventing rainwater leakage. By setting up water trough interlocking, the photovoltaic module can be supported. The entire KEDO roof tile unit 1 does not require drilling holes for installation screws, which effectively improves the waterproof performance. Moreover, the overall structure is simple, which effectively saves production costs and is suitable for mass production and promotion. In addition, the interlocking installation greatly simplifies the installation process and improves installation efficiency.
[0026] The roof tile unit 1 includes several cold-bent corrugations 7 with a crest height between 50mm and 55mm. The roof tile unit 1 also includes a left bend 8, a right bend 9, and a central bulge 10. The left bend 8, right bend 9, and central bulge 10 are all cold-bent. The left bend 8 is bent twice, upward and to the right, and the right bend 9 is bent three times, upward, to the right, and downward. The central bulge 10 has an inverted convex cross-section. By setting the left bend 8, right bend 9, and edge fastener 3, the edge fastener 3 is fastened to the outside of the left bend 8, and the right bend 9 is fastened to the outside of the edge fastener 3. This allows for the combination and splicing of multiple roof tile units 1, effectively preventing leakage at the splicing points.
[0027] The material of Keding Tile Unit 1 is zinc-aluminum-magnesium alloy, specifically model SCS51D+275. Because Keding Tile Unit 1 is made of zinc-aluminum-magnesium alloy, specifically model SCS51D+275, this design effectively improves the structural strength of Keding Tile Unit 1, enabling it to have a lifespan of 25 years, matching the 25-year lifespan of photovoltaic panels on the market. This avoids the situation where the BIPV roof panel has an insufficient lifespan and needs to be disassembled and maintained later.
[0028] The water tank clamp 5 includes a gate-shaped clamp 11, an inner clamp 12, and a rivet nut 13. The inner clamp 12 is fixedly connected to both sides of the inner wall of the gate-shaped clamp 11, and the inner clamp 12 is interlocked with both sides of the central raised portion 10. The rivet nut 13 is riveted to the upper end of the central raised portion 10 and is used to connect with the bolts for fixing the photovoltaic module. By setting the water tank clamp and using the inner clamp 12 to be interlocked with both sides of the central raised portion 10, the gate-shaped clamp 11 can be installed and fixed. By setting the rivet bolt, the photovoltaic module can be easily fixed with bolts.
[0029] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A BIPV roof panel, comprising multiple roof tile units (1) and supporting purlins (2), characterized in that: The supporting purlin (2) is a roof support component. Multiple roof tile units (1) are interlocked at their left and right ends and laid on the surface of two supporting purlins (2). Two side fastener brackets (3) are interlocked on the outer left end of each roof tile unit (1), and two side fastener brackets (3) are also interlocked on the inner right end of each roof tile unit (1). Two central concealed fastener brackets (4) are interlocked on the lower middle surface of each roof tile unit (1), and two water trough fasteners (5) corresponding to the central concealed fastener brackets (4) are interlocked on the upper middle surface of each roof tile unit (1). The water trough fasteners (5) can be used to fix and install photovoltaic modules. The side fastener brackets (3) and the central concealed fastener brackets (4) are fixed on the upper surface of the supporting purlin (2) by self-tapping screws (6).
2. The BIPV roofing panel according to claim 1, characterized in that: The top tile unit (1) includes several cold-bent corrugations (7), with the peak height between 50mm and 55mm.
3. A BIPV roofing panel according to claim 1, characterized in that: The top tile unit (1) also includes a left bend (8), a right bend (9) and a central raised part (10), all of which are cold-formed.
4. A BIPV roofing panel according to claim 3, characterized in that: The left bend (8) is bent twice, upward and to the right, and the right bend (9) is bent three times, upward, to the right and downward. The cross-section of the middle bulge (10) is inverted convex.
5. A BIPV roofing panel according to claim 1, characterized in that: The material of the top tile unit (1) is zinc-aluminum-magnesium alloy, and the specific model is SCS51D+275.
6. A BIPV roofing panel according to claim 1, characterized in that: The water tank clamp (5) includes a gate-shaped clamp (11), an inner clamp (12), and a rivet nut (13). The inner clamp (12) is fixedly connected to both sides of the inner wall of the gate-shaped clamp (11), and the inner clamp (12) is interlocked with both sides of the central raised part (10). The rivet nut (13) is riveted to the upper end of the central raised part (10) and is used to connect with the bolts that fix the photovoltaic module.