Photovoltaic roof component and photovoltaic roof

The combination of purlins and water channels solves the problems of complicated and costly installation of water channels, and achieves stable connection and low-cost installation of photovoltaic roof components.

CN224161309UActive Publication Date: 2026-04-24ANHUI ZERO CARBON RENEWABLE POWER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZERO CARBON RENEWABLE POWER TECHNOLOGY CO LTD
Filing Date
2025-02-28
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing building-integrated photovoltaic (BIPV) technologies, the installation of water channels is cumbersome and costly, affecting the stability and waterproofing performance of rooftop photovoltaic systems.

Method used

The system employs a combination structure of purlins, water channels, and fasteners. The fasteners securely connect the photovoltaic modules, water channels, and purlins, while the mounting part of the water channel abuts against the photovoltaic modules and purlins, simplifying the installation process and reducing costs.

Benefits of technology

This design achieves a stable connection between the water channel and the photovoltaic modules and purlins, improving structural stability, reducing the stress on the water channel, simplifying the installation process, and reducing costs.

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Abstract

The utility model discloses a photovoltaic roof member and a photovoltaic roof, and the photovoltaic roof member comprises purlines which are arranged between two adjacent rows of photovoltaic assemblies to fixedly connect the photovoltaic assemblies; the water guide groove comprises a mounting part and two grooves formed in the two sides of the mounting part, one side of the mounting part abuts against the purline, the other side of the mounting part is used for abutting against frames of two adjacent columns of photovoltaic modules, and the two grooves are located in the two sides of the purline in the length direction; and the fastener is used for connecting the photovoltaic module, the water chute and the purline so as to fixedly connect the photovoltaic module and the water chute to the purline. The photovoltaic components, the purlines and the water guide grooves in the photovoltaic roof component and the photovoltaic roof can be integrally and fixedly connected, the installation is simple and convenient, the cost is reduced, and the installation efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of building-integrated photovoltaics (BIPV) technology, and in particular to a photovoltaic roof component and a photovoltaic roof. Background Technology

[0002] In the field of Building Integrated Photovoltaics (BIPV) technology, the design and installation of water channels are crucial to the stability and waterproofing performance of rooftop photovoltaic systems. Existing technologies generally suffer from cumbersome installation and high costs associated with water channel installation. For example, Chinese patent document CN207427039U describes a method that uses self-tapping screws, clamping components, water channels, and photovoltaic module frames to fix the water channel to the photovoltaic module. However, the complex structure designed to fit the photovoltaic module frame results in cumbersome installation and high costs.

[0003] Therefore, it is necessary to provide a new photovoltaic roof component and photovoltaic roof to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic roof component and photovoltaic roof that can fix photovoltaic modules, purlins and water channels in one piece.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A photovoltaic roof component, comprising:

[0007] Purlins are installed between two adjacent rows of photovoltaic modules to securely connect the photovoltaic modules;

[0008] The water guide channel includes a mounting part and two grooves on both sides of the mounting part. One side of the mounting part abuts against the purlin, and the other side is used to abut against the frame of two adjacent rows of photovoltaic modules. The two grooves are located on both sides of the purlin along its length.

[0009] Fasteners are used to connect the photovoltaic module, the water channel, and the purlin to fix the photovoltaic module and the water channel to the purlin.

[0010] As a further improvement of the present invention, the purlin includes a top wall, which is used to connect two adjacent rows of photovoltaic modules and the water guide channel, and the mounting part is at least partially attached to the top wall.

[0011] As a further improvement of this utility model, the frame of the photovoltaic module is provided with a first through hole, the mounting part is provided with a second through hole, and the top wall is provided with a third through hole. The first through hole, the second through hole and the third through hole are axially corresponding. The photovoltaic module, the water guide channel and the purlin are fixedly connected by fasteners passing through the first through hole, the second through hole and the third through hole.

[0012] As a further improvement of the present invention, the second through hole and the third through hole are respectively provided in two columns for connecting the frames of two adjacent columns of photovoltaic modules.

[0013] As a further improvement of this utility model, the width of the top wall is not greater than the width of the mounting part.

[0014] As a further improvement of the present invention, the groove includes a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The bottom wall is located at a height lower than the mounting part. The first side wall connects the bottom wall and the mounting part, and the second side wall is connected to the end of the bottom wall away from the mounting part.

[0015] As a further improvement of this utility model, the end of the second sidewall away from the bottom wall of the groove is located at a height higher than the bottom wall of the groove and lower than the mounting part.

[0016] As a further improvement of the present invention, the photovoltaic roof component also includes a ridge connector, which connects the water channels on both sides of the ridge.

[0017] As a further improvement of the present invention, the ridge connector includes a connecting part and a cover part. The two connecting parts are respectively fitted and fixedly connected to the mounting parts of the water guide channels on both sides of the ridge. The two ends of the cover part are respectively connected to the ends of the two connecting parts that are far apart from each other.

[0018] To achieve the above objectives, the present invention also adopts the following technical solution:

[0019] A photovoltaic roof includes photovoltaic modules and a photovoltaic roof component as described in any of the above claims. The photovoltaic roof component is disposed between two adjacent rows of photovoltaic modules, and the photovoltaic modules, the water channel, and the purlins are connected by the fasteners, thereby fixing the photovoltaic modules to the photovoltaic roof component.

[0020] Compared to existing technologies, the advantages of this utility model's photovoltaic roof component and photovoltaic roof are as follows: The water guide channel includes an installation part and grooves on both sides. The installation part abuts against the photovoltaic module upwards and against the purlin downwards, thereby greatly reducing the stress on the water guide channel, improving structural stability, and achieving good water guiding effect with a simple structure. It also boasts high production efficiency and low cost. The photovoltaic module, purlin, and water guide channel can be integrally fixed and connected, making installation simple and convenient, reducing costs and improving installation efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic cross-sectional view of a photovoltaic roof according to a specific embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged structural diagram of region A in the middle;

[0023] Figure 3 This is a schematic cross-sectional view of the water guide channel according to a specific embodiment of the present utility model;

[0024] Figure 4 This is an exploded structural diagram of a photovoltaic module, a water guide channel, and a purlin according to a specific embodiment of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of a photovoltaic roof according to a specific embodiment of the present invention;

[0026] Figure 6 for Figure 5 A magnified structural diagram of region B in the middle;

[0027] Figure 7 for Figure 5 Front view structural diagram;

[0028] Figure 8 for Figure 7 A magnified structural diagram of region C in the middle. Detailed Implementation

[0029] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0030] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish the features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "front," "back," "left," "right," "upper," "lower," and similar words appearing in this utility model are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. If "several" appears in this utility model, it means two or more.

[0032] Please see Figures 1 to 8 As shown, this embodiment discloses a photovoltaic roof, including photovoltaic modules 1 and a photovoltaic roof component. The photovoltaic roof component is disposed between two adjacent rows of photovoltaic modules 1. The photovoltaic roof component includes purlins 2, water channels 3, and fasteners 4. The purlins 2 are disposed between two adjacent rows of photovoltaic modules 1 to fix the photovoltaic modules 1. The water channels 3 are disposed between the photovoltaic modules 1 and the purlins 2. The photovoltaic modules 1, water channels 3, and purlins 2 are connected by the fasteners 4, thereby fixing the photovoltaic modules 1 to the photovoltaic roof component. By placing the water channels 3 between two adjacent rows of photovoltaic modules 1 and the purlins 2, rainwater can seep from the connection gaps between the photovoltaic modules 1 into the water channels 3 and drain away. Please refer to [link to relevant documentation]. Figures 1 to 3 As shown, the water guide channel 3 includes a mounting part 31 and two grooves 32 located on both sides of the mounting part 31. The mounting part 31 is at least partially located between the photovoltaic module 1 and the purlin 2, that is, one side of the mounting part 31 abuts against the purlin 2, and the other side is used to abut against the frame 11 of two adjacent rows of photovoltaic modules 1. The water guide channel 3 is fixedly connected to the photovoltaic module 1 and the purlin 2 through the mounting part 31. Specifically, the mounting part 31 is attached upward to the frame 11 of the photovoltaic module 1 and downward to the purlin 2. Therefore, the weight of the photovoltaic module 1 is transferred downward to the purlin 2, which greatly reduces the stress on the water guide channel 3, thereby improving stability and reducing costs.

[0033] Please see Figures 1 to 3As shown, the purlin 2 includes a top wall 21 for connecting two adjacent rows of photovoltaic modules 1 and the water guide channel 3. The upper surface of the mounting part 31 is at least partially attached to the photovoltaic module 1, and the lower surface of the mounting part 31 is at least partially attached to the top wall 21. Furthermore, the upper surface of the mounting part 31 is at least partially attached to the frame 11. With this configuration, the mounting part 31 is attached to the frame 11 of the photovoltaic module 1 and the top wall 21 of the purlin 2, respectively, so that the weight of the photovoltaic module 1 can be better transferred to the purlin 2, reducing the stress on the water guide channel 3 and extending the life of the water guide channel 3.

[0034] Please see Figure 1 , Figure 2 and Figure 4 As shown, the frame 11 has a first through hole 111, the mounting part 31 has a second through hole 311, and the upper top wall 21 has a third through hole 211. The first through hole 111, the second through hole 311, and the third through hole 211 are axially aligned. The photovoltaic module 1, the water guide channel 3, and the purlin 2 are fixedly connected by fasteners 4 passing through the first through hole 111, the second through hole 311, and the third through hole 211. In this embodiment, the fastener 4 is a bolt and nut assembly. The bolt is passed through the first through hole 111, the second through hole 311, and the third through hole 211 in sequence, and a nut is tightened on one side of the third through hole 211; or the bolt is passed through the third through hole 211, the second through hole 311, and the first through hole 111 in sequence, and a nut is tightened on one side of the first through hole 111. In other embodiments, other commonly used fasteners can also be used to fix the three together. This application does not specifically limit the type of fastener.

[0035] Please see Figure 1 and Figure 4 As shown, the second through hole 311 and the third through hole 211 are each provided in two rows, which are used to connect the sides of the frame 11 of two adjacent rows of photovoltaic modules 1 that are close to each other.

[0036] Further, please refer to Figure 1 and Figure 2 As shown, the width of the top wall 21 of the purlin 2 is not greater than the width of the mounting part 31. In this embodiment, the width of the top wall 21 is equal to the width of the mounting part 31. This arrangement ensures that the lower surface of the mounting part 31 is completely attached to the top wall 21, so that the gravity of the photovoltaic module 1 can be transferred to the purlin 2 to the maximum extent.

[0037] Please see Figure 2 and Figure 3As shown, the two grooves 32 of the water guide channel 3 are connected to both ends of the mounting part 31. The two grooves 32 are located on both sides of the purlin 2 along its length and are respectively located below the two rows of photovoltaic modules 1. Further, the groove 32 includes a bottom wall 321 and a first side wall 322 and a second side wall 323 located on both sides of the bottom wall 321. The bottom wall 321 is lower than the mounting part 31. The first side wall 322 connects the bottom wall 321 and the end of the mounting part 31 that are close to each other, and the second side wall 323 connects the bottom wall 321 and the end that is away from the mounting part 31. With this configuration, the water guide channel 3, with its simple structure, achieves a good water guiding effect.

[0038] Further, please refer to Figure 2 and Figure 3 As shown, the end of the second sidewall 323 away from the bottom wall 321 is positioned at a height higher than the bottom wall 321 and lower than the mounting part 31. This arrangement ensures that the water channel 3 has a certain water storage capacity, and the highest point where water can be stored is located below the mounting part 31, preventing the water level in the groove 32 from being too high and seeping into the lower surface of the photovoltaic module 1.

[0039] The water guide channel 3 in this embodiment has a simple structure and can be made of materials such as aluminum alloy or stainless steel. The water guide channel 3 can be obtained by bending the plate material, which is simple to manufacture and has high strength. Similarly, the purlin 2 is also formed by bending.

[0040] Please see Figure 1 and Figure 2 As shown, the purlin 2 in this embodiment is a C-shaped steel purlin, and also includes a bottom wall opposite to the top wall 21, a side support wall connecting the top wall 21 and the bottom wall, and a reinforcing flange extending vertically downward from the end of the top wall 21 away from the side support wall. The side support wall and the top wall 21 are bent together, and the reinforcing flange and the top wall 21 are also bent together. The first side walls 322 on both sides of the mounting portion 31 of the water guide channel 3 are bent together with the mounting portion 31. In some embodiments, such as... Figure 2 As shown, the first sidewall 322 on the left side of the mounting part 31 is attached to the bent connection between the mounting part 31 and the side support wall and the top wall 21, and the first sidewall 322 on the right side of the mounting part 31 is attached to the bent connection between the reinforcing edge and the top wall 21. This arrangement further increases the contact area between the purlin 2 and the water guide channel 3, thereby further reducing the stress on the water guide channel 3. In other embodiments, other types of purlins can also be used, such as H-shaped steel purlins, Z-shaped steel purlins, etc. This application does not specifically limit the type of purlin.

[0041] Please see Figures 5 to 8As shown, in some embodiments, the photovoltaic roof has a ridge, and the photovoltaic roof further includes a ridge connector 5. The ridge connector 5 is used to connect the water channels 3 on both sides of the ridge and prevent water from flowing in between the water channels 3 on both sides of the ridge. Further, the water channels 3 on both sides of the ridge are correspondingly arranged, and the grooves 32 of the water channels 3 on both sides at least partially abut against each other. The ridge connector 5 is fixedly connected to the mounting portions 31 of the water channels 3 on both sides of the ridge. Specifically, the ridge connector 5 includes a connecting portion 51 and a cover portion 52. The two connecting portions 51 are respectively fitted and fixedly connected to the mounting portions 31 of the water channels 3 on both sides of the ridge, and the two ends of the cover portion 52 are respectively connected to the ends of the two connecting portions 51 that are far apart from each other.

[0042] Specifically, please refer to Figure 6 and Figure 8 As shown, the connecting portion 51 and the mounting portion 31 of the ridge connector 5 are respectively provided with holes for fixed connection, so that fasteners 4 can be inserted through both to fix the connection. In other embodiments, fixation can also be achieved by means of adhesive bonding or the like.

[0043] In summary, compared with existing technologies, the photovoltaic roof component and photovoltaic roof of this utility model have the following advantages: The water guide channel 3 includes an installation part 31 and grooves 32 on both sides. The installation part 31 abuts against the photovoltaic module 1 upwards and against the purlin 2 downwards, thereby greatly reducing the stress on the water guide channel 3, improving structural stability, and the water guide channel 3 achieves good water guiding effect with a simple structure, resulting in high production efficiency and low cost. The photovoltaic module 1, purlin 2 and water guide channel 3 can be integrally fixed and connected, making installation simple and convenient, reducing costs and improving installation efficiency.

[0044] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A photovoltaic roof component, characterized in that, include: Purlins (2) are fixedly connected to the photovoltaic modules (1) by being disposed between two adjacent rows of photovoltaic modules (1); The water guide channel (3) includes a mounting part (31) and two grooves (32) provided on both sides of the mounting part (31). One side of the mounting part (31) abuts against the purlin (2), and the other side is used to abut against the frame (11) of two adjacent rows of photovoltaic modules (1). The two grooves (32) are located on both sides of the purlin (2) along its length. Fastener (4) is used to connect the photovoltaic module (1), the water channel (3) and the purlin (2) to fix the photovoltaic module (1) and the water channel (3) to the purlin (2).

2. The photovoltaic roof component according to claim 1, characterized in that: The purlin (2) includes a top wall (21) for connecting two adjacent rows of photovoltaic modules (1) and the water channel (3), and the mounting part (31) is at least partially attached to the top wall (21).

3. The photovoltaic roof component according to claim 2, characterized in that: The photovoltaic module (1) has a first through hole (111) on its frame (11), a second through hole (31) on its mounting part (31), and a third through hole (21) on its top wall (21). The first through hole (111), the second through hole (311), and the third through hole (211) are axially aligned. The photovoltaic module (1), the water guide channel (3), and the purlin (2) are fixedly connected by fasteners (4) passing through the first through hole (111), the second through hole (311), and the third through hole (211).

4. The photovoltaic roof component according to claim 3, characterized in that: The second through hole (311) and the third through hole (211) are provided in two columns for connecting the frames (11) of two adjacent columns of photovoltaic modules (1).

5. The photovoltaic roof component according to claim 2, characterized in that: The width of the top wall (21) is not greater than the width of the mounting part (31).

6. The photovoltaic roof component according to claim 1, characterized in that: The groove (32) includes a bottom wall (321) and a first side wall (322) and a second side wall (323) located on both sides of the bottom wall (321). The bottom wall (321) is located at a height lower than the mounting part (31). The first side wall (322) connects the bottom wall (321) and the mounting part (31). The second side wall (323) is connected to the end of the bottom wall (321) away from the mounting part (31).

7. The photovoltaic roof component according to claim 6, characterized in that: The end of the second sidewall (323) away from the bottom wall (321) is located at a height higher than the bottom wall (321) and lower than the mounting part (31).

8. The photovoltaic roof component according to claim 1, characterized in that: The photovoltaic roof component also includes a ridge connector (5), which connects the water channels (3) on both sides of the ridge.

9. The photovoltaic roof component according to claim 8, characterized in that: The ridge connector (5) includes a connecting part (51) and a cover part (52). The two connecting parts (51) are respectively fitted and fixedly connected to the mounting parts (31) of the water guide channels (3) on both sides of the ridge. The two ends of the cover part (52) are respectively connected to the two ends of the connecting parts (51) that are far apart from each other.

10. A photovoltaic roof, characterized in that, The photovoltaic roof component includes a photovoltaic module (1) and a photovoltaic roof component as described in any one of claims 1-9. The photovoltaic roof component is disposed between two adjacent rows of photovoltaic modules and the photovoltaic module (1), the water channel (3) and the purlin (2) are connected by the fastener (4), thereby fixing the photovoltaic module (1) to the photovoltaic roof component.

Citation Information

Patent Citations

  • Photovoltaic module's support and photovoltaic system

    CN207427039U