Fabricated photovoltaic roof panel

Abstract

The utility model relates to the technical field of photovoltaic roof panels, in particular to an assembly type photovoltaic roof panel which is laid on the upper surface of a purline of a roof during use and comprises a photovoltaic assembly, a hot melt adhesive film and a base plate which are arranged from top to bottom. A male rib is arranged at one end of the base plate, a female rib is arranged at the other symmetrical end of the base plate, during assembly, the female rib of one assembly type photovoltaic roof panel is arranged on the upper surface of the male rib and connected with the purline through a structural nail, and the top of the assembly type photovoltaic roof panel is connected with the purline through a cap. The assembly type photovoltaic roof panel provided by the utility model is connected with the purline through the structural nail, and the cap is buckled after nailing, so that the reliability and the waterproofness of the connection are ensured, and a better decorative effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic roof panel technology, and in particular to a prefabricated photovoltaic roof panel. Background Technology

[0002] Traditional photovoltaic (PV) roof panels integrate building structure and photovoltaic power generation functions in their design, aiming to achieve green building environmental protection and energy self-sufficiency. The system typically includes the following main components: 1) Main structure: bearing the main load-bearing task of the entire roof and providing stable support; 2) Secondary structure purlins: installed on the main structure to support the roof substrate and insulation materials; 3) Insulation cotton: providing good heat insulation and reducing energy loss inside the building; 4) Roof substrate: serving as the installation base for the PV panels, and also providing waterproofing and heat insulation; 5) PV fixing structure: used to fix the PV panels, ensuring their stable installation on the roof; 6. PV panels: the core of the PV system, responsible for converting solar energy into electrical energy. However, during construction, this traditional PV roof panel system has the following problems: First, the construction process is relatively cumbersome. After the main roof structure is completed, the PV connection structure needs to be added on-site, which usually involves complex measurement and installation work. This work not only requires specialized technicians but also takes a long time to complete, thus increasing the construction cycle. Second, the installation of this system significantly increases the roof load. The weight of the photovoltaic panels and fixed structures places higher demands on the roof structure, potentially requiring reinforcement of the main and secondary roof structures, further increasing the building's cost and complexity. Furthermore, the need to add extra structures during construction leads to high overall costs. This includes not only material costs but also construction worker wages, equipment rental fees, and more. In the long run, these high costs may negatively impact the building's return on investment.

[0003] Therefore, it is crucial to provide a photovoltaic roof panel that can solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a prefabricated photovoltaic roof panel.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] This utility model provides a prefabricated photovoltaic roof panel, which is laid on the upper surface of the purlins of the roof during use. It includes photovoltaic modules, hot melt adhesive film and substrate arranged from top to bottom. One end of the substrate is provided with a male rib and the other symmetrical end is provided with a female rib. During assembly, the female rib of a prefabricated photovoltaic roof panel is snapped to the male rib and connected to the purlin through structural nails. The top is connected by a cap.

[0007] In one embodiment of this utility model, the thickness of the substrate is 0.5 to 0.8 mm;

[0008] The thickness of the hot melt adhesive film is 0.03 to 0.1 mm.

[0009] In one embodiment of the present invention, the male rib includes a first transverse rib and a first vertical rib connected to the bottom of the first transverse rib; the first vertical rib is hollow inside; the junction area of ​​the first transverse rib and the first vertical rib is connected to the substrate.

[0010] The lower surface of the first transverse rib is higher than the lower surface of the substrate.

[0011] In one embodiment of the present invention, the upper part of the first vertical rib is provided with a first auxiliary rib that is inclined toward the substrate.

[0012] In one embodiment of this utility model, the width of the first transverse rib is 18-22 mm;

[0013] The height of the first vertical rib is 8.5–9.5 mm;

[0014] The vertical height of the first auxiliary rib is 6.5 to 7.5 mm.

[0015] In one embodiment of the present invention, the mother rib includes a second transverse rib, a second vertical rib and a third vertical rib connected to the bottom and the second transverse rib; the third vertical rib is disposed at the end away from the second transverse rib and away from the second vertical rib.

[0016] The lower surface of the second transverse rib is located on the same plane as the lower surface of the substrate;

[0017] The third vertical rib is allowed to be embedded within the first vertical rib.

[0018] The distance between the lower surface of the first transverse rib and the lower surface of the substrate is the same as that between the second transverse rib and the substrate.

[0019] In one embodiment of this utility model, the first vertical rib, the second vertical rib, and the third vertical rib are parallel.

[0020] In one embodiment of the present invention, the upper part of the second vertical rib is provided with a second auxiliary rib that is inclined toward the substrate.

[0021] In one embodiment of this utility model, the first transverse rib is provided with first structural nail guide holes adapted to the structural nails at intervals along its length direction.

[0022] The second transverse rib is provided with second structural nail guide holes that are adapted to the structural nails at intervals along its length.

[0023] In one embodiment of this utility model, during assembly, the central axis of the first structural nail guide hole of one set of prefabricated photovoltaic roof panels is the same as that of the second structural nail guide hole of another set of prefabricated photovoltaic roof panels.

[0024] In one embodiment of this utility model, the upper surfaces of the first vertical rib, the second vertical rib, and the third vertical rib have the same vertical height.

[0025] The first auxiliary rib and the second auxiliary rib have the same vertical height on their upper surfaces.

[0026] In one embodiment of this utility model, the cap includes a horizontal cap plate and a vertical cap plate disposed at the end of the horizontal cap plate;

[0027] The horizontal cap plate and the vertical cap plate form a space for surrounding the male rib of one set of prefabricated roof panels and the female rib of another set of prefabricated roof panels.

[0028] In one embodiment of this utility model, the profile of the inner surface of the vertical cap plate is adapted to the profile of the outer surfaces of the first auxiliary rib and the first vertical rib, the second auxiliary rib and the second vertical rib.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) The prefabricated photovoltaic roof panel provided by this utility model is connected to the purlin by structural nails. After nailing, the cap is put on, which not only ensures the reliability and waterproofness of the connection, but also has a good decorative effect.

[0031] (2) The prefabricated photovoltaic roof panel provided by this utility model has good wind resistance, excellent thermal insulation and waterproof performance; after the composite molding is completed in the factory, the on-site installation is simple and quick, which can effectively save costs.

[0032] (3) The cap provided by this utility model can clamp the first auxiliary rib and the second auxiliary rib, which can improve the sealing and waterproof performance of the connection of the assembled photovoltaic roof panel on the one hand; on the other hand, the cap can ensure that the adjacent assembled roof panels are relatively close together, thus improving the overall integrity of the roof panel. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of a prefabricated photovoltaic roof panel;

[0034] Figure 2 A cross-sectional view showing the positional relationship between the substrate, hot melt adhesive film, and photovoltaic module.

[0035] Figure 3 This is a cross-sectional view of the substrate;

[0036] Figure 4This is a schematic diagram showing the assembly location of the prefabricated photovoltaic roof panel;

[0037] The following are the labels in the diagram: 1. Substrate; 2. Hot melt adhesive film; 3. Photovoltaic module; 4. Male rib; 41. First horizontal rib; 42. First vertical rib; 43. First auxiliary rib; 5. Female rib; 51. Second horizontal rib; 52. Second vertical rib; 53. Third vertical rib; 54. Second auxiliary rib; 6. Structural nail; 7. Cap. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] In the following embodiments, unless otherwise specified, the structures or components used are all conventional structures or components in the art (for example, the photovoltaic modules are commercially available photovoltaic modules, which can be selected according to the actual situation), as long as they can achieve the corresponding functions.

[0043] Example 1

[0044] This embodiment provides a prefabricated photovoltaic roof panel, such as Figures 1-4 As shown, the photovoltaic module 3, hot melt adhesive film 2, and substrate 1 are laid on the upper surface of the purlins on the roof during use. The substrate 1 is provided with a male rib 4 at one end and a female rib 5 at the other symmetrical end. During assembly, the female rib 5 of a prefabricated photovoltaic roof panel is connected to the male rib 4 by snap-fit ​​and connected to the purlins by structural nails 6. The top is connected by a cap 7.

[0045] Furthermore, the male rib 4 includes a first transverse rib 41 and a first vertical rib 42 connected to the bottom of the first transverse rib 41; the first vertical rib 42 is hollow inside; the junction area of ​​the first transverse rib 41 and the first vertical rib 42 is connected to the substrate 1; the lower surface of the first transverse rib 41 is higher than the lower surface of the substrate 1.

[0046] Furthermore, the upper part of the first vertical rib 42 is provided with a first auxiliary rib 43 inclined towards the substrate 1 (to ensure stability when further engaging with the cap 7).

[0047] Furthermore, the mother rib 5 includes a second transverse rib 51, a second vertical rib 52 and a third vertical rib 53 connected to the bottom of the second transverse rib 51; the third vertical rib 53 is disposed at an end away from the second transverse rib 51 and away from the second vertical rib 52; the lower surface of the second transverse rib 51 is located in the same plane as the lower surface of the substrate 1; the third vertical rib 53 is allowed to be embedded in the first vertical rib 42; the distance between the lower surface of the first transverse rib 41 and the lower surface of the substrate 1 is the same as the distance between the second transverse rib.

[0048] Furthermore, the first vertical rib 42, the second vertical rib 52, and the third vertical rib 53 are parallel.

[0049] Furthermore, the upper part of the second vertical rib 52 is provided with a second auxiliary rib 54 inclined towards the substrate 1 (to ensure stability when further engaging with the cap 7).

[0050] Furthermore, the first transverse rib 41 is provided with first structural nail guide holes adapted to the structural nail 6 at intervals along its length direction, and the second transverse rib 51 is provided with second structural nail guide holes adapted to the structural nail 6 at intervals along its length direction (preferably, the spacing between adjacent first structural nail guide holes is 450mm to 600mm, and the spacing between adjacent second structural nail guide holes is 450mm to 600mm); the upper surfaces of the first vertical rib 42, the second vertical rib 52, and the third vertical rib 53 are at the same height along the vertical direction; the upper surfaces of the first auxiliary rib 43 and the second auxiliary rib 54 are at the same height along the vertical direction.

[0051] Furthermore, the cap 7 includes a horizontal cap plate and a vertical cap plate (with elasticity) disposed at the end of the horizontal cap plate; the horizontal cap plate and the vertical cap plate form a space for surrounding a male rib 4 of a set of prefabricated roof panels and a female rib 5 of another set of prefabricated roof panels.

[0052] The inner surface of the vertical cap plate is adapted to the outer surface of the first auxiliary rib 43 and the first vertical rib 42, the second auxiliary rib 54 and the second vertical rib 52.

[0053] Furthermore, if the prefabricated photovoltaic roof panel needs to be assembled vertically, notches for vertical assembly can be provided at the ends of the first auxiliary rib 43 and the second auxiliary rib 54 (which can be adjusted according to the actual situation).

[0054] In this embodiment, the thickness of the substrate 1 is 0.5-0.8 mm, the thickness of the hot melt adhesive film 2 is 0.03-0.1 mm, the width of the first transverse rib 41 is 18-22 mm, the height of the first vertical rib 42 is 8.5-9.5 mm, the height of the first auxiliary rib 43 along the vertical direction is 6.5-7.5 mm, and the angle formed by the bottom ends of the first auxiliary rib 43 and the second auxiliary rib 54 with the vertical plane is 15-45°, preferably 30°.

[0055] Photovoltaic module 3, hot melt adhesive film 2, and substrate 1 are obtained by composite molding in the factory; during assembly, the central axis of the first structural nail guide hole of one set of prefabricated photovoltaic roof panels is the same as that of the second structural nail guide hole of another set of prefabricated photovoltaic roof panels.

[0056] The first horizontal rib 41 of one set of prefabricated photovoltaic roof panels is placed on the upper surface of the second horizontal rib 51 of another set of prefabricated photovoltaic roof panels (at this time, the third vertical rib 53 is embedded in the first vertical rib 42). The structural nail 6 extends out of the second structural nail guide hole, the first structural nail guide hole, and the purlin and is then fixed to achieve the connection of the prefabricated photovoltaic roof panels. After all the structural nails 6 are assembled, the cap 7 is used to snap them together to surround the male rib 4 and the female rib 5. On the one hand, this ensures that water will not enter the connection position of the male rib 4 and the female rib 5 and affect the service life of the structural nail 6. On the other hand, it also ensures the reliability of the connection.

[0057] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the interpretation of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A fabricated photovoltaic roof panel, when in use, laid on the upper surface of a purlin of a roof, characterized in that, It includes a photovoltaic module (3), a hot melt adhesive film (2), and a substrate (1) arranged from top to bottom; one end of the substrate (1) is provided with a male rib (4), and the other symmetrical end is provided with a female rib (5). During assembly, the female rib (5) of a prefabricated photovoltaic roof panel is connected to the male rib (4) by snap-fit ​​and connected to the purlin by structural nails (6), and the top is connected by a cap (7).

2. The prefabricated photovoltaic roof panel according to claim 1, characterized in that, The thickness of the substrate (1) is 0.5 to 0.8 mm; The thickness of the hot melt adhesive film (2) is 0.03 to 0.1 mm.

3. A prefabricated photovoltaic roof panel according to claim 1, characterized in that, The male rib (4) includes a first transverse rib (41) and a first vertical rib (42) connected to the bottom of the first transverse rib (41); the first vertical rib (42) is hollow inside; The lower surface of the first transverse rib (41) is higher than the lower surface of the substrate (1).

4. A prefabricated photovoltaic roof panel according to claim 3, characterized in that, The upper part of the first vertical rib (42) is provided with a first auxiliary rib (43) that is inclined toward the substrate (1).

5. A prefabricated photovoltaic roof panel according to claim 4, characterized in that, The mother rib (5) includes a second transverse rib (51), a second vertical rib (52) connected to the bottom of the second transverse rib (51), and a third vertical rib (53); the third vertical rib (53) is disposed at the end away from the second transverse rib (51) and away from the second vertical rib (52); The lower surface of the second transverse rib (51) is on the same plane as the lower surface of the substrate (1); The third vertical rib (53) is allowed to be embedded within the first vertical rib (42).

6. A prefabricated photovoltaic roof panel according to claim 5, characterized in that, The first vertical rib (42), the second vertical rib (52), and the third vertical rib (53) are parallel.

7. A prefabricated photovoltaic roof panel according to claim 5, characterized in that, The upper part of the second vertical rib (52) is provided with a second auxiliary rib (54) that is inclined toward the substrate (1).

8. A prefabricated photovoltaic roof panel according to claim 7, characterized in that, The first transverse rib (41) is provided with first structural nail guide holes that are adapted to the structural nails (6) at intervals along its length direction. The second transverse rib (51) is provided with second structural nail guide holes that are adapted to the structural nail (6) at intervals along its length.

9. A prefabricated photovoltaic roof panel according to claim 7, characterized in that, The upper surfaces of the first vertical rib (42), the second vertical rib (52), and the third vertical rib (53) have the same vertical height. The upper surfaces of the first auxiliary rib (43) and the second auxiliary rib (54) are at the same vertical height.

10. A prefabricated photovoltaic roof panel according to claim 7, characterized in that, The cap (7) includes a horizontal cap plate and a vertical cap plate disposed at the end of the horizontal cap plate; The horizontal cap plate and the vertical cap plate form a space for surrounding a male rib (4) of one set of prefabricated roof panels and a female rib (5) of another set of prefabricated roof panels.

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