Photovoltaic roof waterproof structure

By using a flip-type photovoltaic panel base and a water channel base structure, the problem of inconvenient maintenance of photovoltaic roof components is solved, achieving a combination of convenient maintenance and reliable waterproof performance, and improving wind resistance and service life.

CN224538113UActive Publication Date: 2026-07-21ZHEJIANG MATERIALS IND FUEL GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MATERIALS IND FUEL GRP CO LTD
Filing Date
2025-06-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing photovoltaic roofing modules require the removal of sealing strips for maintenance, which makes maintenance inconvenient. While they offer good waterproofing, they also struggle to maintain ease of use.

Method used

A waterproof structure for photovoltaic roofs is designed, which adopts a flip-type photovoltaic panel base and a water guide channel base structure. The upper and lower photovoltaic panel bases are waterproofed by sealing pressure plates, and the left and right photovoltaic panel bases are waterproofed by the water guide channel base. The photovoltaic panel bases can be flipped for convenient maintenance by using a drive cylinder.

Benefits of technology

It enables convenient flipping and maintenance of photovoltaic panel bases, maintains waterproof performance, and improves wind resistance and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a photovoltaic roof waterproof structure belongs to photovoltaic roof technical field. The utility model discloses installation support, photovoltaic panel seat, installation support is set up obliquely, a plurality of photovoltaic panel seats are located on installation support, the upper end of photovoltaic panel seat is connected in installation support rotatably, between two photovoltaic panel seats adjacent up and down, the lower end of the photovoltaic panel seat of top is equipped with the sealing pressing piece that is attached to the photovoltaic panel seat below, the water guide groove seat is equipped with between two photovoltaic panel seats adjacent left and right on installation support, and the water guide groove seat is formed by a bottom plate and two side plates, and the photovoltaic panel seat lower side is equipped with the straight strip embedding groove for the side plate embedding. The utility model not only has better waterproof performance, but also is convenient for maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of photovoltaic roofing technology, and in particular to a waterproof structure for photovoltaic roofing. Background Technology

[0002] In the field of photovoltaic power generation, photovoltaic modules are typically installed on the exterior walls or roofs of buildings. These modules absorb sunlight to generate electricity, forming a building-integrated photovoltaic (BIPV) green roof power generation structure. To ensure waterproofing between adjacent photovoltaic modules, existing technologies, such as Chinese invention patent application CN 116005904 A, disclose a photovoltaic waterproof integrated roof assembly. This assembly includes a first photovoltaic panel assembly and a second photovoltaic panel assembly. The first photovoltaic panel assembly includes a first photovoltaic panel, a first sealing strip disposed at the bottom edge of the first photovoltaic panel, and a first fixing strip disposed on the first sealing strip away from the bottom surface of the first photovoltaic panel. The surface of the first fixing strip away from the first sealing strip has a first fixing structure. The second photovoltaic panel assembly includes a second photovoltaic panel, a second sealing strip disposed on the side of the second photovoltaic panel, and a second fixing strip disposed on the side of the second sealing strip away from the second photovoltaic panel. The second fixing strip includes an outer surface away from the second photovoltaic panel and a top surface connected to the outer surface. The top surface has a second fixing structure, which is used for a sealed connection with the first fixing structure.

[0003] Although the aforementioned roofing components have good waterproofing performance, they still have the problem of inconvenient maintenance. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a photovoltaic roof waterproof structure that not only has better waterproof performance but is also easy to maintain.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A photovoltaic roof waterproofing structure includes a mounting bracket and photovoltaic panel holders. The mounting bracket is inclined, and multiple photovoltaic panel holders are mounted on the mounting bracket. The upper end of each photovoltaic panel holder is rotatably connected to the mounting bracket. Between two adjacent photovoltaic panel holders, the lower end of the upper photovoltaic panel holder is provided with a sealing pressure plate that fits onto the lower photovoltaic panel holder. A water guide groove seat is provided on the mounting bracket between two adjacent photovoltaic panel holders on the left and right sides. The water guide groove seat is composed of a base plate and two side plates. The lower side of the photovoltaic panel holder is provided with a straight groove for the side plates to be embedded.

[0007] Preferably, the mounting bracket has water guide groove seats on both the left and right sides of each photovoltaic panel seat, and a rotating shaft support is provided in the water guide groove seat. The upper end of the photovoltaic panel seat is rotatably connected to the left and right rotating shaft supports through a rotating shaft.

[0008] Preferably, the rotating shaft support is provided with a water guiding groove along the length of the water guiding groove seat.

[0009] Preferably, the water guide groove is located at the bottom of the rotating shaft support and connects to the upper side of the base plate.

[0010] Preferably, the sealing plate includes a first mounting part, a second mounting part, and a fitting part. The first mounting part and the second mounting part are respectively connected to the upper side surface and the lower end surface of the upper photovoltaic panel base, and the fitting part is fitted to the upper side surface of the lower photovoltaic panel base.

[0011] Preferably, the thickness of the bonding portion gradually decreases from the end connected to the first mounting portion to the other end.

[0012] Preferably, a drive cylinder is rotatably connected to the back of the photovoltaic panel holder.

[0013] Preferably, the mounting bracket has splicing mounting holes on its side, and multiple mounting brackets are spliced ​​together at the splicing mounting holes by bolts.

[0014] The advantages of this utility model are:

[0015] 1. The photovoltaic roof can be opened by flipping the photovoltaic panel base without disassembling any waterproof components, making it convenient to clean and maintain the photovoltaic panels. The waterproof performance is automatically restored after the photovoltaic panel base is reset.

[0016] 2. Waterproofing is achieved by sealing the upper side of the photovoltaic panel base with a sealing clip between the upper and lower adjacent photovoltaic panel bases. The structure is simple and easy to implement.

[0017] 3. Waterproofing is achieved between adjacent photovoltaic panel holders through the interlocking of the photovoltaic panel holder water guide groove, and the water guide groove is used to drain rainwater, ensuring reliable waterproofing performance;

[0018] 4. Using a drive cylinder to flip the photovoltaic panel holder to a horizontal position can effectively reduce wind resistance and improve wind resistance and service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation structure of a photovoltaic roof waterproofing structure and a flat roof building, provided as an embodiment of this specification.

[0021] Figure 2This is a schematic diagram of the closed-state structure of a photovoltaic roof waterproofing structure provided in the embodiments of this specification;

[0022] Figure 3 This is a schematic diagram of the open state structure of a photovoltaic roof waterproofing structure provided in the embodiments of this specification;

[0023] Figure 4 This is a schematic diagram of the back structure of a photovoltaic roof waterproofing structure provided in the embodiments of this specification;

[0024] Figure 5 This is a three-dimensional structural diagram of the mounting bracket provided in the embodiments of this specification;

[0025] Figure 6 for Figure 5 Enlarged structural diagram at point A;

[0026] Figure 7 This is a schematic diagram of the photovoltaic panel mounting structure according to an embodiment of this specification;

[0027] Figure 8 for Figure 7 Enlarged structural diagram at point B;

[0028] In the diagram: 1. Mounting bracket; 2. Photovoltaic panel holder; 3. Drive cylinder; 4. Splicing mounting hole; 5. Rotary shaft support; 6. Hinge support; 7. Sealing plate; 71-First mounting part; 72-Second mounting part; 73-Fitting part; 8. Water guide groove seat; 81. Base plate; 82. Side plate; 9. Straight strip groove; 10. Water guide channel; 11. Column structure; 12. Flat roof building. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0031] As mentioned in the background section, the roofing components achieve waterproofing by installing sealing strips between adjacent photovoltaic panels. Therefore, during maintenance, the sealing strips must be removed from above before the photovoltaic panels can be opened for maintenance, making maintenance inconvenient.

[0032] Therefore, such as Figure 1-8 As shown, this embodiment provides a waterproof structure for a photovoltaic roof, including a mounting bracket 1, a photovoltaic panel holder 2, a drive cylinder 3, a sealing plate 7, and a water guide trough seat 8. The mounting bracket 1 is supported by a column structure 11 and installed at an angle on the roof of a flat-roofed building 12. The mounting bracket 1 is a rectangular frame structure used to support the photovoltaic panel holder 2. In this embodiment, each mounting bracket 1 has four frames, and each frame can install one photovoltaic panel holder 2. Simultaneously, multiple splicing mounting holes 4 are provided on the four sides of the mounting bracket 1, allowing multiple mounting brackets 1 to be spliced ​​into an integrated frame support structure using bolts, ensuring the structural stability of the entire photovoltaic roof.

[0033] The photovoltaic panel holder 2 is a unitized photovoltaic panel with a protective support. It is mounted on the mounting bracket 1 in an inclined state. Specifically, the upper end of the photovoltaic panel holder 2 in the inclined state is rotatably connected to the mounting bracket 1. At the same time, a hinged support 6 is provided on the back of the photovoltaic panel holder 2. One end of the drive cylinder 3 is hinged to the hinged support 6, and the other end is hinged to the top surface of the flat roof 12. The drive cylinder 3 can be an electric cylinder, which makes the operation more stable and reliable. In this way, each photovoltaic panel holder 2 can be flipped upward and opened by the drive cylinder 3. This facilitates cleaning and maintenance, and also allows the photovoltaic panel holder 2 to be adjusted to a horizontal state to reduce wind resistance and improve wind resistance and service life.

[0034] As described above, to ensure the waterproof performance between adjacent photovoltaic panel holders 2 while allowing them to be flipped open at any time, this embodiment provides a sealing pressure plate 7 at the lower end of the upper photovoltaic panel holder that fits onto the lower photovoltaic panel holder. That is, the sealing pressure plate 7 is fixedly installed at the lower end of the upper photovoltaic panel holder. When the upper photovoltaic panel holder is closed with the mounting bracket 1, the sealing pressure plate 7 fits precisely against the upper side of the upper end of the lower photovoltaic panel holder, thereby achieving waterproofing between adjacent photovoltaic panel holders. Meanwhile, a water guide groove seat 8 is provided on the mounting bracket 1 between two adjacent photovoltaic panel seats 2. The water guide groove seat 8 consists of a base plate 81 and two side plates 82. The lower side of the photovoltaic panel seat 2 has a straight groove 9 for the side plates 82 to be inserted. When the photovoltaic panel seat 2 is closed with the mounting bracket 1, the straight groove 9 on the photovoltaic panel seat 2 fits perfectly with the side plate 82 of the water guide groove seat 8, achieving waterproofing on both sides of the photovoltaic panel seat. At the same time, rainwater can be quickly discharged along the water guide groove seat 8, thus achieving waterproofing between adjacent photovoltaic panel seats. In summary, there is no fixed waterproof structure between adjacent photovoltaic panel seats, whether vertically or horizontally. Therefore, the photovoltaic panel seat 2 can be flipped open at any time to ensure convenient cleaning and maintenance. At the same time, when the photovoltaic panel seat 2 is closed with the mounting bracket 1, its waterproof performance is reliably guaranteed.

[0035] Specifically, the mounting bracket 1 has water guide groove seats 8 on both the left and right sides of each photovoltaic panel seat 2. Each water guide groove seat 8 contains a rotating shaft support 5. The upper end of the photovoltaic panel seat 2 is rotatably connected to the two rotating shaft supports 5 via a rotating shaft. This structure is simple and effectively ensures the fitting relationship between the photovoltaic panel seat 2 and the side plates 82 of the water guide groove seat 8. To ensure the drainage performance of the water guide groove seat 8, the rotating shaft support 5 has a water guide channel 10 along the length of the water guide groove seat 8. Furthermore, to further ensure its drainage performance, the water guide channel 10 is located at the bottom of the rotating shaft support 5 and connects to the upper side of the base plate 81, so as to minimize the accumulation of rainwater upstream of the rotating shaft support 5.

[0036] The sealing clamp 7 includes a first mounting portion 71, a second mounting portion 72, and a bonding portion 73. The first mounting portion 71 and the second mounting portion 72 are respectively connected to the upper side and lower end face of the upper photovoltaic panel holder 2, and the bonding portion 73 is bonded to the upper side of the lower photovoltaic panel holder. Thus, the first mounting portion 71 and the second mounting portion 72 ensure the connection strength between the sealing clamp and the lower end of the upper photovoltaic panel holder, while also ensuring the sealing performance between the sealing clamp and the upper photovoltaic panel holder. The sealing clamp 7 is generally made of rubber and can be bonded to the photovoltaic panel holder 2 with adhesive. To improve the effective bonding between the bonding portion 73 and the lower photovoltaic panel holder, the thickness of the bonding portion 73 gradually decreases from the end connected to the first mounting portion 71 to the other end, resulting in a thinner, more flexible portion that is easier to bond with the lower photovoltaic panel holder.

[0037] The operating principle of this embodiment is as follows: the roof installation direction is determined according to the sunlight distribution of the building's location. Then, the column structure is constructed and installed first. Then, multiple mounting brackets 1 are spliced ​​together with bolts and installed on the column structure to form an integrated frame support structure. Next, the photovoltaic panel base 2 is installed in sequence. Finally, the drive cylinder 3 at the rear of the photovoltaic panel base 2 is connected and installed. After completion, the opening and closing of the photovoltaic panel base 2 is tested to complete the installation of the photovoltaic roof.

[0038] During operation, in the closed state, the adjacent photovoltaic panel holders 2 are sealed together by the sealing plates 7, while the sides of the adjacent photovoltaic panel holders 2 are sealed and waterproofed by the straight grooves 9 fitting into the side plates of the water guide seat 8. This prevents external rainwater from entering while generating electricity. When cleaning or maintaining the roof, the photovoltaic panel holders 2 on the side to be inspected are flipped up and opened by independently controlling the drive cylinder 3. The materials can then be inspected and maintained through the opened space. In windy weather, the photovoltaic panel holders 2 on the roof are flipped up and opened horizontally by the drive cylinder 3 under overall control before the wind blows, thus reducing wind resistance and improving the roof's wind resistance.

[0039] The above are merely preferred embodiments of this utility model, and are implementations based on the overall concept of this utility model. Furthermore, the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A photovoltaic roof waterproofing structure, comprising a mounting bracket and photovoltaic panel holders, wherein the mounting bracket is inclined and multiple photovoltaic panel holders are disposed on the mounting bracket, characterized in that, The upper end of the photovoltaic panel base is rotatably connected to the mounting bracket. Between two adjacent photovoltaic panel bases, the lower end of the upper photovoltaic panel base is provided with a sealing pressure plate that fits onto the lower photovoltaic panel base. A water guide groove is provided on the mounting bracket between two adjacent photovoltaic panel bases on the left and right. The water guide groove consists of a base plate and two side plates. The lower side of the photovoltaic panel base is provided with a straight groove for the side plates to be embedded.

2. The photovoltaic roof waterproofing structure according to claim 1, characterized in that, The mounting bracket has water guide groove seats on both the left and right sides of each photovoltaic panel seat. The water guide groove seats are equipped with rotating shaft supports. The upper end of the photovoltaic panel seat is rotatably connected to the left and right rotating shaft supports through a rotating shaft.

3. The photovoltaic roof waterproofing structure according to claim 2, characterized in that, The rotating shaft support is provided with a water guiding groove along the length of the water guiding groove seat.

4. The photovoltaic roof waterproofing structure according to claim 3, characterized in that, The water guide channel is located at the bottom of the rotating shaft support and connects to the upper side of the base plate.

5. A photovoltaic roof waterproofing structure according to claim 1, characterized in that, The sealing plate includes a first mounting part, a second mounting part, and a fitting part. The first mounting part and the second mounting part are respectively connected to the upper side surface and the lower end surface of the upper photovoltaic panel base, and the fitting part is fitted to the upper side surface of the lower photovoltaic panel base.

6. The photovoltaic roof waterproofing structure according to claim 5, characterized in that, The thickness of the bonding portion gradually decreases from the end connected to the first mounting portion to the other end.

7. A photovoltaic roof waterproofing structure according to claim 1, characterized in that, The photovoltaic panel holder is rotatably connected to a drive cylinder on its back.

8. A photovoltaic roof waterproofing structure according to claim 1, characterized in that, The mounting bracket has splicing mounting holes on its side, and multiple mounting brackets are spliced ​​together at the splicing mounting holes by bolts.