Waterproofing kit for photovoltaic roofing

Abstract

The utility model provides a waterproof kit for photovoltaic roof, including the card seat, the bottom center of card seat is passed and is opened to have the mounting hole, the both sides of card seat top are fixedly installed with the symmetrical sealing support plate respectively, the inside wall of card seat's below symmetry is equipped with the card groove, every card groove all are with corresponding the card head of card arm lower extreme and are connected together, waterproof cover inside one body is provided with two symmetrical card arms, the both sides of waterproof cover are provided with a plurality of sealing fin, and sealing fin is in close contact with sealing support plate, the utility model discloses card seat'N' type structure is convenient for fixed, and installation is firm, sealing support plate and the sealing fin of waterproof cover form multilayer sealing, and the rainwater is blocked and adapts roof deformation, and card arm head design makes waterproof cover connection reliable, and dismouting is convenient, improves the efficiency, and reduces the cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of photovoltaic waterproof kits, and in particular relates to a waterproof kit for photovoltaic roofs. Background Technology

[0002] With the widespread application of photovoltaic (PV) power generation technology, the demand for PV modules installed on rooftops is increasing. During long-term use, the joints between PV panels are susceptible to water leakage due to rain, dust, and other external environmental factors, which can affect the lifespan and power generation efficiency of the PV system. Therefore, waterproofing of PV roofs is crucial, and waterproofing kits, as key components for PV roof waterproofing, directly impact the overall waterproofing effect of the roof.

[0003] Currently, existing waterproofing kits for photovoltaic roofs on the market have certain shortcomings in structural design and performance. For example, the connection between the waterproof cover and the mounting bracket in some kits is not secure enough, easily leading to loosening and reduced sealing, allowing rainwater to seep into the roof through the connection. Furthermore, the sealing structure of the waterproof cover is poorly designed, with insufficient tightness in its fit with the mounting bracket, making it difficult to effectively prevent rainwater intrusion. In addition, the existing waterproof covers are cumbersome to install and remove, increasing construction difficulty and time costs, hindering the rapid installation and maintenance of photovoltaic roofs.

[0004] Therefore, it is essential to invent a waterproof kit for photovoltaic roofs. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a waterproof kit for photovoltaic roofs, comprising a mounting base, mounting holes, sealing plates, slots, clamping arms, clamping heads, a waterproof cover, and sealing fins. The mounting base has a through-hole at its bottom center. Symmetrical sealing plates are fixedly mounted on both sides of the upper part of the mounting base. Slots are symmetrically formed on the lower inner wall of the mounting base, and each slot engages with the clamping head at the lower end of the corresponding clamping arm. Two symmetrical clamping arms are integrally formed on the inner side of the waterproof cover, and several sealing fins are arranged on both sides of the waterproof cover, with the sealing fins in close contact with the sealing plates.

[0006] Preferably, the mounting bracket has a "U" shaped structure, and the mounting bracket is fixedly installed on the photovoltaic module bracket and located between two photovoltaic panels by bolts passing through its through-hole mounting holes.

[0007] Preferably, the two sealing plates fixedly installed on both sides above the card holder are arranged in parallel and symmetrically. The sealing plates have an "L" shaped structure, and the upper outer surface of the sealing plate is an arc-shaped curved surface, which forms a sealing contact with the sealing fin surface of the waterproof cover.

[0008] Preferably, the waterproof cover has an arc-shaped cover structure, and at least three sealing fins are respectively provided on the inner two sides of the waterproof cover. The sealing fins are arc-shaped sheet structures, with one end of the sealing fin integrally formed with the waterproof cover, and the arc-shaped surface of the other end forming a sealing contact with the surface of the waterproof cover.

[0009] Preferably, the waterproof cover has two symmetrically integrated clamping arms on the inner side, the clamping arms are inclined outwards, and each clamping arm has a "7"-shaped clamping head structure at its lower end.

[0010] Preferably, the card head at the lower end of the card arm is allowed to be engaged in the card slot inside the card holder, and the lateral movement of the card head can disengage from the card slot of the card holder.

[0011] Preferably, the length of the card holder is less than the length of the sealing plate and the waterproof cover, the lengths of the sealing plate and the waterproof cover are the same, and the card holder is located in the lower middle position between the sealing plate and the waterproof cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The mounting bracket of this utility model adopts a "U" shaped structure. It can be easily fixed to the photovoltaic module bracket by passing bolts through the mounting holes. It is located between two photovoltaic panels, and the installation position is accurate and the fixation is firm, which can effectively ensure the stable installation of the waterproof kit in the photovoltaic roof.

[0014] The sealing support plate of this utility model has an "L"-shaped structure. The arc-shaped surface of its upper outer surface forms a sealing contact with the sealing fins of the waterproof cover. At the same time, multiple arc-shaped sheet-like sealing fins on the inner side of the waterproof cover are in close contact with the sealing support plate, which can block rainwater intrusion in multiple layers and from multiple angles, greatly improving the sealing performance of the waterproof kit and effectively preventing rainwater from seeping into the photovoltaic roof. In addition, the arc-shaped cover structure and the design of the sealing fins can adapt to the slight deformation of the photovoltaic roof under the influence of the external environment, maintaining good sealing performance.

[0015] The inner side of the waterproof cover of this utility model has an outwardly inclined clamping arm, and the lower end of the "7"-shaped clamping head is engaged with the inner side of the clamping seat. The clamping head is allowed to be placed inside the clamping seat and can move laterally to break free from the clamping seat restriction. This design makes the connection between the waterproof cover and the clamping seat reliable and easy to install and disassemble, improving construction efficiency and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembled structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 3 This is a utility model Figure 1 A schematic diagram of the main structure.

[0019] In the picture:

[0020] 1. Card holder, 2. Mounting hole, 3. Sealing plate, 4. Card slot, 5. Card arm, 6. Card head, 7. Waterproof cover, 8. Sealing fin. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0023] As attached Figure 1 To be continued Figure 3 As shown:

[0024] This utility model provides a waterproof kit for photovoltaic roofs, including a mounting base 1, mounting holes 2, sealing support plates 3, slots 4, arms 5, heads 6, a waterproof cover 7, and sealing fins 8. The mounting base 1 has a through mounting hole 2 at the bottom center. Symmetrical sealing support plates 3 are fixedly installed on both sides of the upper part of the mounting base 1. Slots 4 are symmetrically opened on the lower inner wall of the mounting base 1, and each slot 4 is engaged with the head 6 at the lower end of the corresponding arm 5. Two symmetrical arms 5 are integrally provided on the inner side of the waterproof cover 7. Several sealing fins 8 are provided on both sides of the waterproof cover 7, and the sealing fins 8 are in close contact with the sealing support plates 3.

[0025] Furthermore, the mounting bracket 1 adopts a U-shaped metal frame structure with a circular mounting hole 2 through the center of its bottom, the diameter of which is compatible with M6-M8 bolts. During installation, the mounting bracket 1 is fixed to the crossbeam of the photovoltaic module support by bolts passing through the mounting hole 2. The opening of the mounting bracket 1 faces upward and is precisely located below the splicing gap between two adjacent photovoltaic panels, so that the horizontal bottom edge of the mounting bracket 1 is in contact with the surface of the support. The vertical side plates form a limiting structure on both sides, providing a positioning reference for the subsequent installation of components.

[0026] Furthermore, parallel and symmetrical sealing plates 3 are fixed to both sides of the upper part of the card holder 1 by welding or bolt connection. Each sealing plate 3 has an "L"-shaped sheet metal structure, with its vertical section fixedly connected to the top of the vertical side plate of the card holder 1, and its horizontal section extending outward to form a sealing contact surface. The upper surface of the horizontal section is designed as an arc-shaped curved surface, which has the same curvature as the outer surface of the sealing fins 8 of the waterproof cover 7. The sealing plate 3 is made of modified PVC or EPDM rubber, which has both rigid support and elastic deformation capability. When the waterproof cover 7 is fastened, the sealing fins 8 and the arc-shaped curved surface form a surface contact seal.

[0027] Furthermore, the waterproof cover 7 has an arc-shaped structure, made of ABS engineering plastic injection molding, and covers the joint gap between the two photovoltaic panels. Three to five sealing fins 8 are evenly distributed on the left and right sides of the inner side of the waterproof cover 7. The sealing fins 8 are arc-shaped sheet structures, with one end integrally formed with the inner wall of the waterproof cover 7, and the arc-shaped surface of the other end forming an overlapping sealing area with the outer surface of the waterproof cover 7. The sealing fins 8 are made of silicone rubber. When the waterproof cover 7 is fastened, the fins 8 are compressed and undergo elastic deformation, forming a double sealing barrier with the arc-shaped surface of the sealing support plate 3.

[0028] Furthermore, two outwardly inclined locking arms 5, each tilted at 15°-20°, are symmetrically arranged on the inner center of the waterproof cover 7. The locking arms 5 are made of polypropylene (PP) plastic and have moderate elasticity. A "7"-shaped locking head 6 is integrally formed at their lower ends. The locking head 6 precisely engages with the locking groove 4 on the inner side of the locking seat 1. During installation, pressing the waterproof cover 7 causes the locking arms 5 to elastically deform, and the locking head 6 slides into the locking groove 4 along the side of the locking seat 1. After release, the locking arms 5 return to their original position, and the horizontal section of the locking head 6 engages with the limiting step of the locking groove 4, forming a reliable mechanical connection.

[0029] Furthermore, the inner side of the vertical side plate of the card holder 1 is provided with a card groove 4 corresponding to the card head 6. The card groove 4 is an inverted rectangular groove structure to ensure that the card head 6 can slide out laterally. When it is necessary to remove the waterproof cover 7, push the cover in the horizontal direction, and the card head 6 moves laterally in the card groove 4 until it is freed from the restriction of the card groove 4. The cover can then be removed by using the elastic restoring force of the card arm 5.

[0030] Furthermore, the main body length of the mounting bracket 1 is designed to be 100mm, which is less than the 300mm length of the sealing support plate 3 and the waterproof cover 7, the latter two being of the same length and completely covering the 300mm splicing gap between adjacent photovoltaic panels. The horizontal section of the sealing support plate 3 extends 50mm from each side of the mounting bracket 1, and the ends of the waterproof cover 7 extend an additional 25mm to form an edge covering. This layout allows the sealing support plate 3 and the waterproof cover 7 to completely cover the joint area of ​​the photovoltaic panels, and the centrally positioned mounting bracket 1 provides structural support while avoiding the problem of stress concentration due to thermal expansion and contraction caused by excessive length.

[0031] The working principle is as follows: First, position and fix the bracket 1: make the opening of the bracket 1 face upward, so that its horizontal bottom edge is closely attached to the surface of the crossbeam of the photovoltaic module bracket, and adjust the position so that the bracket 1 is precisely aligned with the splicing gap of the two adjacent photovoltaic panels (by observing the alignment marks on the edge of the photovoltaic panel or using measuring tools to assist in positioning). Then, use M6-M8 bolts to pass through the mounting holes 2 at the bottom of the bracket 1 and fasten the bracket 1 to the crossbeam of the bracket to form a basic support structure.

[0032] Next, holding the waterproof cover 7 (the arc of the cover matches the surface of the photovoltaic panel), align the two locking arms 5 inside the cover with the slots 4 on the vertical side plates of the mounting base 1. Press down on the waterproof cover 7, and using the outward tilting elastic design of the locking arms 5 (the elastic deformation capability provided by the polypropylene material), the "7"-shaped locking head 6 at the lower end of the locking arms 5 slides into the slot 4 along the guide surface of the side plate of the mounting base 1; when the locking head 6 is fully inserted into the slot 4, release the pressure, and the locking arms 5 will elastically return to their original position, and the horizontal section of the locking head 6 will engage with the limiting step of the slot 4, completing the mechanical connection and fixation between the waterproof cover 7 and the mounting base 1.

[0033] Finally, as the waterproof cover 7 snaps down, the sealing fins 8 (made of silicone rubber) on both sides of the cover will come into contact with the sealing support plate 3 (L-shaped structure with an arc-shaped upper surface) above the mounting base 1. As the snap-fit ​​is completed, the sealing fins 8 are compressed and undergo 1-2mm elastic deformation, and their arc-shaped surfaces form a surface contact seal with the arc-shaped surface of the sealing support plate 3; at the same time, the other end of the sealing fins 8 closes synchronously with the overlapping sealing area on the outer surface of the waterproof cover 7, and finally achieves the waterproof function at the photovoltaic panel joint through a double sealing barrier (fin contact seal with the support plate + fin overlap seal with the cover).

[0034] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A waterproof kit for photovoltaic roofs, characterized in that, It includes a card socket (1), a mounting hole (2), a sealing support plate (3), a card slot (4), a card arm (5), a card head (6), a waterproof cover (7), and a sealing fin (8). A mounting hole (2) penetrates through the center of the bottom of the card socket (1). On both sides above the card socket (1), symmetric sealing support plates (3) are fixedly installed. On the inner wall below the card socket (1), card slots (4) are symmetrically provided. Each card slot (4) is clamped together with the card head (6) at the lower end of the corresponding card arm (5). On the inner side of the waterproof cover (7), two symmetric card arms (5) are integrally provided. On both sides of the waterproof cover (7), a plurality of the sealing fins (8) are provided. The sealing fins (8) are in close contact with the sealing support plates (3).

2. The waterproof kit for photovoltaic roofs as described in claim 1, characterized in that: The card socket (1) has a "U" - shaped structure. The card socket (1) is fixed on the photovoltaic module support by bolts passing through the mounting hole (2) penetrating through itself and is located between two photovoltaic panels.

3. A waterproof kit for photovoltaic roofs as described in claim 2, characterized in that: The two sealing support plates (3) fixedly installed on both sides above the card socket (1) are arranged in parallel and symmetrically. The sealing support plate (3) has an "L" - shaped structure. The outer surface above the sealing support plate (3) is an arc - shaped curved surface, and this arc - shaped curved surface forms a sealed contact with the surface of the sealing fin (8) of the waterproof cover (7).

4. A waterproof kit for photovoltaic roofs as described in claim 3, characterized in that: The waterproof cover (7) has an arc - shaped cover structure. On both sides of the inner side of the waterproof cover (7), at least three of the sealing fins (8) are provided. The sealing fin (8) has an arc - shaped sheet structure. One end of the sealing fin (8) is integrally provided with the waterproof cover (7), and the arc - shaped surface of the other end forms a sealed contact with the surface of the waterproof cover (7).

5. A waterproof kit for photovoltaic roofs as described in claim 4, characterized in that: In the middle of the inner side of the waterproof cover (7), two card arms (5) are symmetrically and integrally provided. The card arms (5) are inclined outwards. At the lower end of each card arm (5), a "7" - shaped card head (6) structure is provided.

6. A waterproof kit for photovoltaic roofs as described in claim 5, characterized in that: The card head (6) at the lower end of the card arm (5) is allowed to be placed inside the card slot (4) opened on the inner side of the card socket (1). The lateral movement of the card head (6) can break away from the restriction of the card slot (4) of the card socket (1).

7. A waterproof kit for photovoltaic roofs as described in claim 6, characterized in that: The length of the card socket (1) is less than the lengths of the sealing support plate (3) and the waterproof cover (7). The lengths of the sealing support plate (3) and the waterproof cover (7) are the same. The card socket (1) is arranged at the middle and lower position between the sealing support plate (3) and the waterproof cover (7).

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