Photovoltaic support drainage device and photovoltaic module with same

Abstract

The utility model relates to the technical field of photovoltaic assembly installation structures, in particular to a photovoltaic support drainage device and a photovoltaic assembly with the photovoltaic support drainage device, and the photovoltaic support drainage device comprises a purline body with a U-shaped cross section perpendicular to the length direction; the bracket is fixedly installed at the opening end of the purline body, the width of the bracket is not smaller than that of the opening of the purline body, the two sides, in the width direction of the purline body, of the bracket extend out of the purline body, and a pressing block is installed on the face, away from the purline body, of the bracket and arranged in the width direction of the purline body. The photovoltaic support drainage device provided by the utility model improves the drainage performance of the purline when the long edge of the photovoltaic assembly is installed.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module installation structure technology, specifically to a photovoltaic bracket drainage device and a photovoltaic module having the same. Background Technology

[0002] When installing photovoltaic (PV) modules on a roof, the PV panels need to be fixed to the roof's sloping beams. Currently, purlins are commonly used as an intermediate connecting structure. The purlins are first installed on the roof's sloping beams, and then the PV panels are fixed to the purlins using bolts or other connectors. The purlins provide support for the PV panels on the roof.

[0003] To enable drainage using purlins, drainage channels are typically provided on the purlin structure used for installing photovoltaic modules on the roof. At the same time, to allow for flexible installation of photovoltaic modules according to different installation requirements, purlins and photovoltaic modules are usually connected by L-shaped adapter plates. That is, after the L-shaped adapter plate is selected for installation and fixed to the roof's sloping beam, it is then fixed to the purlin.

[0004] In existing technologies, purlin structures are typically M-shaped, with the vertical edges on both sides serving as connection points to L-shaped transition plates, which are then fixed in place using bolts or other connectors. To ensure the stability of the purlin's fit with the L-shaped transition plate while maintaining its drainage performance, the drainage channel in the middle of the M-shaped purlin can only be V-shaped, thus limiting its drainage capacity. In areas with heavy rainfall, increased drainage demands can lead to leaks in M-shaped purlins. Utility Model Content

[0005] In view of this, the present invention provides a photovoltaic bracket drainage device and a photovoltaic module having the same, to solve the problem of poor waterproof performance of purlins when photovoltaic modules are installed along their long sides.

[0006] In a first aspect, this utility model provides a photovoltaic support drainage device, comprising:

[0007] The purlin body has a U-shaped cross-section perpendicular to its length.

[0008] The bracket is fixedly installed at the open end of the purlin body. The width of the bracket is not less than the opening width of the purlin body, and the bracket extends to both sides of the purlin body along the width direction. A pressure block is installed on the surface of the bracket away from the purlin body, and the pressure block is arranged facing the width direction of the purlin body.

[0009] This utility model provides a photovoltaic bracket drainage device. In use, the purlin body is installed on the top surface of the roof sloping beam by an external fastening mechanism. The outer edge of the photovoltaic module's back frame is pressed and fixed between the pressure block and the bracket. By setting pressure blocks arranged along the width direction of the purlin body, the pressure blocks are arranged perpendicular to the photovoltaic module frame, allowing the purlin body to be arranged along the gap between the photovoltaic modules. The cross-section of the purlin body perpendicular to its length direction is U-shaped. Compared with the V-shaped drainage groove in the existing M-shaped purlin, the U-shaped drainage structure widens the bottom space of the drainage structure, which can increase the drainage volume and reduce blockage caused by more impurities during drainage, thereby improving the waterproof performance of the purlin body. Moreover, the U-shaped shape helps to improve the deformation resistance and lateral tilting stability of the purlin body.

[0010] In one alternative embodiment, a clamp is installed, which is fixedly connected to the bracket. The clamp and bracket enclose an installation space, within which the purlin body is fixedly installed. The clamp and bracket enclose the installation space, and through the tightening action of the clamp, the bracket is connected to the clamp, and the purlin body is fixedly installed within the installation space, thus securing the purlin body to the bracket. Furthermore, the clamp structure is simple in design, typically requiring only bolts or clips for secure connection.

[0011] In one optional embodiment, multiple brackets and mounting clamps are spaced apart along the length of the purlin body, with each bracket and mounting clamp arranged in a one-to-one correspondence. The multiple brackets and mounting clamps spaced apart along the length of the purlin body enhance the stability of the overall structure connecting the brackets and mounting clamps, while also making the external connection for bracket fixation more stable and reliable.

[0012] In one optional embodiment, connecting flanges are provided on both sides of the mounting clamp. The connecting flanges are bent toward the side of the mounting clamp that is away from the purlin body, and the connecting flanges are fixedly connected to the bracket. By providing connecting flanges on both sides of the mounting clamp, the tightness of the contact between the connecting flanges and the purlin body and the bracket can be enhanced, facilitating operation and installation, while also providing structural support for the connection between the mounting clamp and the bracket.

[0013] In one optional embodiment, the purlin body includes a drainage section and a connecting section. Both the drainage section and the connecting section have a U-shaped cross-section perpendicular to their length direction. The drainage section is located inside the connecting section, and the inner side of the drainage section is adapted to form a drainage channel. The connecting section is adapted to be fixedly connected with an external adapter. The drainage section is located on the inner side to form a drainage channel, and the connecting section is located on the outer side for fixing with the external adapter. When the purlin body is installed on the roof sloping beam, an L-shaped adapter can still be used. One side of the L-shaped adapter is fixed to the roof sloping beam with bolts or other fasteners. Then, bolts or other fasteners are sequentially passed through the other side of the L-shaped adapter and the connecting section to fix the purlin body onto the roof sloping beam via the L-shaped adapter.

[0014] In one optional embodiment, the purlin body further includes a sealing portion, which is fixedly installed between the open end of the drainage section and the open end of the connecting section, completely sealing the gap between the drainage section and the connecting section. The fixed installation of the sealing portion between the open end of the drainage section and the open end of the connecting section enhances the structural rigidity of the purlin body and also improves the stability of the connection structure between the bracket and the purlin body.

[0015] In one alternative embodiment, the side of the sealing portion facing the bracket is parallel to the side of the bracket facing the purlin body. Beneficial effect: Having the side of the sealing portion facing the bracket parallel to the side of the bracket facing the purlin body ensures a tight fit between the purlin body and the bracket, enhancing connection stability and preventing the accumulation of dirt between the connection and the drainage section.

[0016] In one alternative embodiment, the purlin body is a one-piece component. This one-piece design improves processing efficiency, reduces processing costs, facilitates installation and disassembly, and enhances the overall structural stability of the purlin body.

[0017] In one alternative embodiment, the pressure blocks are arranged in pairs along the length direction of the purlin body, and the paired pressure blocks are symmetrical about the length direction of the purlin body.

[0018] Symmetrically arranged pressure blocks can withstand uniformly distributed loads, improving the stability of the structure. At the same time, symmetrically arranged pressure blocks can ensure the correct installation of the components connected to them, enhancing the assembly accuracy of the structure.

[0019] Secondly, this utility model also provides a photovoltaic module, including the photovoltaic support drainage device described above.

[0020] Since photovoltaic modules include photovoltaic support drainage devices, which have the same effect as photovoltaic support drainage devices, they will not be described in detail here. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a side view of the photovoltaic bracket drainage device and the photovoltaic module having the same.

[0023] Figure 2 This is a front view of the photovoltaic bracket drainage device and the photovoltaic module having the same.

[0024] Figure 3 This is a schematic diagram of the photovoltaic bracket drainage device and the photovoltaic module having the same.

[0025] Figure 4 This is a schematic diagram of the purlin body.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Purlin body; 101. Drainage part; 102. Connecting part; 103. Sealing part; 2. Bracket; 3. Pressure block; 4. Mounting clamp; 401. Connecting fold. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Photovoltaic modules are typically installed on the roofs of buildings. The roofs not only have to bear the weight of the photovoltaic modules but also have to cope with natural factors such as wind, rain, and snow. During the installation of photovoltaic systems, drainage issues must be fully considered. If the drainage structure is not designed properly, rainwater may accumulate on the photovoltaic modules. Water accumulation on the photovoltaic modules will have a negative impact. Moisture may seep into the joints or electrical connections of the photovoltaic modules, causing electrical faults or short circuits. Areas where water accumulates may breed algae and moss, increasing the maintenance difficulty of the roof and photovoltaic modules and reducing the power generation efficiency of the photovoltaic modules.

[0033] As part of the photovoltaic bracket drainage device, the purlin body 1 not only needs to support the photovoltaic module, but also needs to take into account the drainage function, so that the water flowing through the photovoltaic module can be smoothly drained away and water accumulation is avoided. This utility model provides a photovoltaic bracket drainage device and a photovoltaic module having it.

[0034] The following is combined with Figures 1 to 4 The following describes embodiments of the present invention.

[0035] According to an embodiment of the present invention, a photovoltaic support drainage device is provided, comprising a purlin body 1 and a bracket 2. The purlin body 1 has a U-shaped cross-section perpendicular to its length direction. The bracket 2 is fixedly installed at the open end of the purlin body 1, the width of the bracket 2 is not less than the opening width of the purlin body 1, and the bracket 2 extends to the outside of the purlin body 1 on both sides along the width direction of the purlin body 1. A pressure block 3 is installed on the surface of the bracket 2 facing away from the purlin body 1, and the pressure block 3 is arranged facing the width direction of the purlin body 1.

[0036] The photovoltaic bracket drainage device provided by this utility model, in use, has the purlin body 1 installed on the top surface of the roof beam by an external fastening mechanism. The outer edge of the back frame of the photovoltaic module is pressed and fixed between the pressure block 3 and the bracket 2. By setting the pressure block 3 along the width direction of the purlin body 1, the pressure block 3 is arranged perpendicular to the photovoltaic module frame, allowing the purlin body 1 to be arranged along the gap between the photovoltaic modules. This improves the waterproof performance of the purlin when the long side of the photovoltaic module is installed. Compared with the V-shaped drainage groove in the M-shaped purlin of the prior art, the U-shaped drainage structure widens the bottom space of the drainage structure, which can increase the drainage volume and reduce the blockage caused by more impurities during the drainage process, thereby improving the waterproof performance of the purlin body 1. Furthermore, the cross-section of the purlin body 1 perpendicular to its length direction is U-shaped. The U-shaped shape helps to improve the stability of the purlin body 1 in terms of deformation resistance and lateral tilting resistance. The bracket 2 is fixedly installed at the open end of the purlin body 1, and the bracket 2 extends to the outside of the purlin body 1 on both sides along the width direction of the purlin body 1, which helps to connect the bracket 2 with the purlin body 1 and ensures the stability of the bracket 2. A pressure block 3 is installed on the surface of the bracket 2 away from the purlin body 1. The pressure block 3 is suitable for pressing the photovoltaic panel. The pressure block 3 is arranged facing the width direction of the purlin body 1, and its length direction extends along the length direction of the purlin body 1, which is suitable for connecting the long side frame of the adjacent photovoltaic panel.

[0037] The width of the bracket 2 is not less than the opening width of the purlin body 1. The purpose is to completely cover the opening end of the purlin body 1 with the bracket 2. The bracket 2 extends to the outside of the purlin body 1 on both sides along the width direction of the purlin body 1. This can enhance the balance and make the connection between the bracket 2 and the purlin body 1 more stable.

[0038] In some embodiments, combined with Figure 1 As shown, the mounting clamp 4 is fixedly connected to the bracket 2, and the mounting clamp 4 and the bracket 2 form an installation space, in which the purlin body 1 is fixedly installed.

[0039] The mounting clamp 4 and the bracket 2 enclose an installation space. Through the fastening action of the mounting clamp 4, the bracket 2 is connected to the mounting clamp 4, and the purlin body 1 is fixedly installed within the installation space, thus securing the purlin body 1 to the bracket 2. The mounting clamp 4 has a simple structural design, facilitating installation and disassembly. In this embodiment, the main body of the mounting clamp 4 is fitted around the purlin body 1, meaning the cross-sectional shape of the main body of the mounting clamp 4 is also U-shaped. In some other embodiments, the mounting clamp 4 may not be completely fitted to the purlin body 1; a portion of the inner side of the mounting clamp 4 abuts against the outer wall of the purlin body 1 to fix the purlin body 1.

[0040] Furthermore, in order to facilitate the fixed connection between the mounting clamp 4 and the bracket 2, connecting flanges 401 are provided on both sides of the mounting clamp 4. The connecting flanges 401 are bent toward the side of the mounting clamp 4 that is away from the purlin body 1, and the connecting flanges 401 are fixedly connected to the bracket 2.

[0041] The two sides of the mounting clamp 4 are provided with connecting flanges 401, which enhances the tightness of the connection flanges 401 with the purlin body 1 and the bracket 2, making operation and installation easier, and at the same time providing structural support for the connection between the mounting clamp 4 and the bracket 2.

[0042] The connecting flange 401 is symmetrically arranged about the length of the purlin and abuts against the side of the bracket 2 that extends along the width of the purlin body 1 to the outside of the purlin body 1, thereby enhancing the tightness of the structure.

[0043] Specifically, the mounting clamp 4 and the bracket 2 can be connected by bolts or clips. In this solution, a bolt connection is preferred. The bolt passes through the mounting clamp 4 and the bracket 2 in sequence to fix them together. In this embodiment, the bolt also passes through the pressure block 3. During installation, the pressure block 3, the bracket 2, and the mounting clamp 4 are fixedly connected by a single bolt.

[0044] In some embodiments, combined with Figure 1 As shown, multiple brackets 2 and mounting clamps 4 are spaced apart along the length of the purlin body 1, with each bracket 2 and mounting clamp 4 arranged in a one-to-one correspondence.

[0045] Multiple brackets 2 and mounting clamps 4 are spaced apart along the length of the purlin body 1, which enhances the stability of the overall structure connecting the brackets 2 and the mounting clamps 4, and makes the external connection of the brackets 2 more stable and reliable.

[0046] As one implementation, the external connection of the bracket 2 is a photovoltaic module. The long side frame of the photovoltaic module is relatively long, and multiple brackets 2 and mounting clamps 4 can enhance the stability of the connection structure with the photovoltaic module.

[0047] In some embodiments, combined with Figure 4As shown, the purlin body 1 includes a drainage section 101 and a connecting section 102. Both the drainage section 101 and the connecting section 102 have a U-shaped cross-section perpendicular to their length. The drainage section 101 is located inside the connecting section 102, and the inner side of the drainage section 101 is adapted to form a drainage channel. The connecting section 102 is adapted to be fixedly connected with an external adapter. Specifically, the drainage section 101 is located on the inner side to form a drainage channel, and the connecting section 102 is located on the outer side for fixed connection with the external adapter. When the purlin body 1 is installed on the roof sloping beam, an L-shaped adapter can still be used. One side of the L-shaped adapter is fixed to the roof sloping beam with bolts or other fasteners. Then, bolts or other fasteners are sequentially passed through the other side of the L-shaped adapter and the connecting section 102 to fix the purlin body 1 to the roof sloping beam via the L-shaped adapter.

[0048] The purlin body 1 includes a drainage section 101 and a connecting section 102. The cross-sectional shape of the drainage section 101 perpendicular to the length direction and the cross-sectional shape of the connecting section 102 perpendicular to the length direction are both U-shaped, which enhances the stability of the structure, makes the design simpler, and is easy to install and adjust. The connecting section 102 abuts against the mounting clamp 4. The drainage section 101 includes a U-shaped drainage groove, which is suitable for draining accumulated water.

[0049] 1. In some embodiments, combined with Figure 4 As shown, the purlin body 1 also includes a sealing part 103, which is fixedly installed between the open end of the drainage part 101 and the open end of the connecting part 102. The sealing part 103 completely seals the gap between the drainage part 101 and the connecting part 102.

[0050] In this embodiment, the sealing portion 103 is fixedly installed between the open end of the drainage portion 101 and the open end of the connecting portion 102, which enhances the structural rigidity of the purlin body 1 and the stability of the connection structure between the bracket 2 and the purlin body 1. In some other embodiments, the sealing portion 103 may also be disposed in the space between the drainage portion 101 and the connecting portion 102, so as to fix the drainage portion 101 and the connecting portion 102 into an integral structure.

[0051] The sealing part 103 can prevent dirt or water from accumulating in the double-layer U-shaped hollow structure of the purlin body 1, and enhance the stability of the purlin body 1 structure.

[0052] As one implementation, the purlin body 1 has a solid internal structure, which enhances the rigidity and hardness of the purlin body 1 and improves processing efficiency.

[0053] In some embodiments, combined with Figure 1 and Figure 4 As shown, the side of the sealing part 103 facing the bracket 2 is parallel to the side of the bracket 2 facing the purlin body 1.

[0054] The side of the sealing part 103 facing the bracket 2 is parallel to the side of the bracket 2 facing the purlin body 1, so that the purlin body 1 and the bracket 2 fit tightly together, enhancing the stability of the connection, and at the same time preventing dirt from accumulating between the connecting part 102 and the drainage part 101.

[0055] In some embodiments, combined with Figure 4 As shown, the purlin body 1 is a one-piece component. Specifically, the purlin body 1 is made of soft metal materials such as aluminum alloy and is formed sequentially through a stamping process. The one-piece design of the purlin body 1 improves processing efficiency, reduces processing costs, facilitates installation and disassembly, and enhances the overall structural stability of the purlin body 1.

[0056] In some embodiments, combined with Figure 1 As shown, the pressure blocks 3 are arranged in pairs along the length direction of the purlin body 1, and the paired pressure blocks 3 are symmetrical about the length direction of the purlin body 1.

[0057] The symmetrically arranged pressure blocks 3 can withstand uniformly distributed loads, improving the stability of the structure. At the same time, the symmetrically arranged pressure blocks 3 can ensure the correct installation of the components connected to them, enhancing the assembly accuracy of the structure.

[0058] Secondly, this utility model also provides a photovoltaic module, including the photovoltaic support drainage device described above. The purlin body 1 in the photovoltaic support drainage device has a U-shaped cross-section. The cross-sectional area of ​​the U-shaped drainage is larger than that of the V-shaped drainage in related technologies, which is beneficial to improving drainage efficiency. The double-layer U-shaped structure of the purlin body 1 separates the connecting part 102 from the drainage part 101, avoiding the installation of mounting holes or snap-fit ​​grooves during the installation of the connecting part 102, which could damage the tightness of the drainage part 101, causing water accumulation and potentially damaging the power generation efficiency and overall structural lifespan of the photovoltaic module over time.

[0059] In this scheme, the photovoltaic bracket drainage device is suitable for connecting the long frame of adjacent photovoltaic modules. The photovoltaic modules are arranged in a horizontal and vertical array. The short frame connecting the adjacent photovoltaic modules can be arranged with the pressure block 3 in this scheme facing the length direction of the purlin body 1, so that the length direction of the purlin body 1 in the photovoltaic bracket drainage device connecting the long frame of the adjacent photovoltaic modules is perpendicular to the length direction of the purlin body 1 in the photovoltaic bracket drainage device connecting the short frame of the adjacent photovoltaic modules.

[0060] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A photovoltaic support drainage device, characterized in that, include: The purlin body (1) has a U-shaped cross section perpendicular to its length direction; A bracket (2) is fixedly installed at the open end of the purlin body (1). The width of the bracket (2) is not less than the opening width of the purlin body (1), and the bracket (2) extends to the outside of the purlin body (1) on both sides along the width direction of the purlin body (1). A pressure block (3) is installed on the surface of the bracket (2) away from the purlin body (1), and the pressure block (3) is arranged facing the width direction of the purlin body (1).

2. The photovoltaic support drainage device according to claim 1, characterized in that, It also includes a mounting clamp (4), which is fixedly connected to the bracket (2). The mounting clamp (4) and the bracket (2) enclose an installation space, and the purlin body (1) is fixedly installed in the installation space.

3. The photovoltaic support drainage device according to claim 2, characterized in that, The bracket (2) and the mounting clamp (4) are both provided in multiples along the length direction of the purlin body (1), and the bracket (2) and the mounting clamp (4) are arranged in a one-to-one correspondence.

4. The photovoltaic support drainage device according to claim 2 or 3, characterized in that, The mounting clamp (4) has connecting flanges (401) on both sides. The connecting flanges (401) are bent toward the mounting clamp (4) away from the purlin body (1). The connecting flanges (401) are fixedly connected to the bracket (2).

5. The photovoltaic support drainage device according to any one of claims 1 to 3, characterized in that, The purlin body (1) includes a drainage section (101) and a connecting section (102). The cross-sectional shape of the drainage section (101) perpendicular to the length direction and the cross-sectional shape of the connecting section (102) perpendicular to the length direction are both U-shaped. The drainage section (101) is located inside the connecting section (102). The inside of the drainage section (101) is adapted to form a drainage channel. The connecting section (102) is adapted to be fixedly connected with an external adapter.

6. The photovoltaic support drainage device according to claim 5, characterized in that, The purlin body (1) also includes a sealing part (103), which is fixedly installed between the opening end of the drainage part (101) and the opening end of the connecting part (102). The sealing part (103) completely seals the gap between the drainage part (101) and the connecting part (102).

7. The photovoltaic support drainage device according to claim 6, characterized in that, The side of the sealing part (103) facing the bracket (2) is parallel to the side of the bracket (2) facing the purlin body (1).

8. The photovoltaic support drainage device according to claim 6 or 7, characterized in that, The purlin body (1) is an integral component.

9. The photovoltaic support drainage device according to any one of claims 1 to 3, characterized in that, The pressure blocks (3) are arranged in pairs along the length direction of the purlin body (1), and the paired pressure blocks (3) are symmetrical about the length direction of the purlin body (1).

10. A photovoltaic module, characterized in that, The photovoltaic support drainage device is as described in any one of claims 1 to 9.

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