Photovoltaic panel with overlapping frame and its sealing surface system

Abstract

The invention provides two kinds of photovoltaic panel frames which can be jointed with each other, +A type frame and -A type frame, and a parallelogram photovoltaic panel and its sealing surface system which is composed of the two kinds of frames. The arrangement of the photovoltaic panel frame follows the principle that the frames of each two parallel sides are different, namely, the +A and -A frames are arranged oppositely on each two parallel sides. The photovoltaic panel units can be jointed with each other to form a panel, and the sealing strip and the corner sealing structure can form a sealing surface system which is not permeable to water vapor. The system has the advantages of simple structure and convenient installation.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic panel technology, and in particular to a rigid photovoltaic panel with an overlapping frame and its sealing surface system. Background Technology

[0002] The existing rigid photovoltaic panels have no overlapping structure on the outer edge of the frame, resulting in rain and air leakage between the panels after installation, making it difficult to form a closed system.

[0003] Traditional Chinese architecture uses overlapping flat and cylindrical tiles, sealed with mud, to achieve a sealed roof and prevent leaks. Inspired by this, this invention provides a photovoltaic panel and its sealing system that are easy to install and form a sealed surface. Summary of the Invention

[0004] This invention provides two types of interlocking photovoltaic panel frames, and a parallelogram photovoltaic panel with each side composed of these two types of frames, along with its sealing surface system. For ease of description, these two types of frames are respectively named +A type interlocking frame and -A type interlocking frame. The parallelogram photovoltaic panel with interlocking frames provided by this invention follows the principle that every two parallel sides have different frames, i.e., +A and -A type interlocking frames are arranged opposite each other on every two parallel sides. These photovoltaic panel units can be interlocked to form a continuous sheet, and with the addition of sealing strips and corner sealing structures, a water- and airtight sealing surface system is formed. This system has the advantages of simple construction and convenient installation.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] This invention first provides a +A type overlapping frame with an overlapping edge, the top surface of which is flush with the top surface of the +A type overlapping frame. Simultaneously, it provides a -A type overlapping frame with another overlapping edge, the overlapping edge of which is lower than the top surface of the frame. The two frames can form a paired, overlapping structure through their overlapping edges. When paired, the overlapping edge of the +A type overlapping frame is on the upper side, and the overlapping edge of the -A type overlapping frame is on the lower side. A small gap is left in the thickness direction of the two overlapping edges. When the two frames overlap, a foam sealing rubber strip with a natural cross-sectional dimension slightly larger than the gap between them is placed in the middle, and then clamped with bolts to form a sealed overlap that prevents air and water. As an embodiment, this invention provides a rectangular photovoltaic panel with the aforementioned frames with overlapping edges as sides. The frame arrangement follows the principle that every two parallel sides have different frames, that is, the +A and -A type overlapping frames are arranged opposite each other on every two parallel sides. Such photovoltaic panel units can form a sealed overlap through the sealed overlap between the frames with overlapping edges. The rectangular photovoltaic panel with overlapping frame cannot form a completely sealed overlap at the corners of four adjacent panels. Therefore, this invention also provides a corner sealing structure to solve this problem. The corner seal uses sealant to plug tiny holes, supplemented by a protective block. Finally, the overlapping photovoltaic panels and the corner sealing structure together form a photovoltaic panel sealing surface system. Attached Figure Description

[0007] Figure 1 It is a +A type overlap border section;

[0008] Figure 2 It is a type A overlapping border section;

[0009] Figure 3 These are diagrams showing the overlapping relationships between two types of borders;

[0010] Figure 4 It is the cross-section of the sealing rubber strip;

[0011] Figure 5 These are two diagrams showing the overlapping and sealing of the frame;

[0012] Figure 6 This is a diagram of photovoltaic panel installation;

[0013] Figure 7 yes Figure 6 cross section Figure 1-1 ;

[0014] Figure 8 This is a plan view of a rectangular photovoltaic panel unit;

[0015] Figure 9 yes Figure 8 Detail drawing of the corner intersection of two +A type overlapping borders;

[0016] Figure 10 yes Figure 8 Detailed drawing of the corner of the overlapping frame of the two A-type sections;

[0017] Figure 11 yes Figure 8 Detailed drawing of the upper right corner intersection of the +A and -A type overlapping borders;

[0018] Figure 12 yes Figure 8 Detailed drawing of the lower left corner intersection of the +A and -A type overlapping borders;

[0019] Figure 13 This is a schematic diagram of the planar assembly of photovoltaic panel units. Figure 1 ;

[0020] Figure 14 This is a schematic diagram of the planar assembly of photovoltaic panel units. Figure 2 ;

[0021] Figure 15 This is a detailed drawing of the corner positions of the four-panel splicing;

[0022] Figure 16 This is a plan view of the corner seal;

[0023] Figure 17 yes Figure 16 Mid-section Figure 2-2 ;

[0024] Part and component numbering description:

[0025] +A: +A type overlap frame; -A: -A type overlap frame; +Aa: +A type overlap frame overlap edge; -Aa: -A type overlap frame overlap edge; -Ab: -A type overlap frame overlap edge sealing groove; Ac: Solar photovoltaic panel; Ad: Corner notch; B: Sealing rubber strip; C: Large head bolt; D: Sealing gasket; E: Protective block; F: Sealing adhesive; G: Lower support beam; H1: Corner small gap 1; H2: Corner small gap 2; Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0028] In the following description, the terms "first" and "second" are used merely to distinguish different objects and do not imply any similarity or connection between them. It should be understood that the directional descriptions "above," "below," "top," and "bottom" refer to the directions shown in the accompanying drawings.

[0029] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. The term "connection," unless otherwise specified, includes both direct and indirect connections. The term "a plurality" means two or more. The term "thickness" refers to the distance between two opposing surfaces of a sheet or block having a larger area.

[0030] This invention provides a photovoltaic panel with an overlapping frame and its sealing surface system, which can be widely used in the field of engineering construction as a covering to form a sealed surface, such as for building roofs, curtain walls, and exterior walls. It should be noted that the application scenarios of this invention do not limit the photovoltaic panel of this invention.

[0031] The invention will now be described in detail with reference to the accompanying drawings, using a planar sealing surface system as an example. Figure 1 This is a cross-sectional view of a +A type overlapping frame, which has an outwardly extending overlapping edge +Aa, and a photovoltaic panel Ac is connected to its inner side. Figure 2 This is a cross-sectional view of a type A overlapping frame, which has an outwardly extending overlapping edge -Aa. A sealing groove -Ab is provided on the overlapping edge for installing a sealing rubber strip B. A photovoltaic panel Ac is also connected to the inside of the frame. Figure 3 These are two diagrams showing the overlapping relationship between the two frames. After overlapping, there is a small gap between the two boards. The characteristic dimensions in each direction are h1, h2, and h3, and h0 is the total width dimension of the overlapping installation. Figure 4 It is a cross-sectional view of foam rubber strip B designed based on the gap formed after the two boards are overlapped. It is similar to the gap between the rigid overhanging overlap edges after the overlap, and its size is slightly larger than the gap in its natural state. Figure 5 This is a diagram showing the overlapping relationship between two types of frame seals. Foam rubber strip B completely fills the gap between the two types of boards. Figure 6 This is a cross-sectional view of the photovoltaic panels installed on the lower support beam G via the frame. Before installation, holes should be pre-drilled on the +A type overlapping frame and the lower support beam G. The two photovoltaic panel frames can be simultaneously pressed and installed on the lower support beam G by the large-head mounting bolts C, where the sealing gasket D plays a sealing role. Figure 7 yes Figure 6 cross section Figure 1-1 In this embodiment, the lower support beam G has a C-shaped cross section.

[0032] Figure 8 This is a plan view of a rectangular photovoltaic panel unit using the +A and -A types of borders described above. As shown in the figure, in this type of rectangular photovoltaic panel, each pair of parallel sides is arranged with a -A type overlapping border and a +A type overlapping border, respectively, following the principle of different types of borders for parallel opposite sides. Figure 9 for Figure 8 The large-scale drawing of the intersection of the two +A type overlapping frame edges shows that the two frame edges, including their extended overlapping edges, are spliced ​​together after being cut at a 45° angle. Figure 10 for Figure 8 The large-scale drawing of the intersection of the two A-type overlapping frames shows that the two frames, including their extended overlapping edges, are joined together after being cut at a 45° angle. Figure 11 yes Figure 8 The large detail in the upper right corner shows that two different types of borders are joined together by cutting at a 45° angle, but the extended overlapping edges do not extend to the corner overlapping area along the length of the border, forming a square gap Ad. Figure 12 yes Figure 8 The detailed drawing in the lower left corner shows that two different types of frames are joined together by beveling at a 45° angle. However, the extended overlapping edges do not extend along the length of the frames to the corner overlap area, forming another square notch Ad. This corner structure is also applicable to parallelogram-shaped photovoltaic panels, except that the beveling at the ends of the frames is changed to follow the diagonal of the parallelogram, and the corners where different types of frames intersect form a parallelogram notch in the overlap area.

[0033] Figure 13 This is a top view, which expresses... Figure 8 The photovoltaic panel unit planar overlapping installation sequence shown means that the photovoltaic panel unit can always be extended and overlapped with other identical photovoltaic panels along the direction of the -A type overlap frame of the panel unit. Figure 14 This indicates that, based on the already overlapped photovoltaic panels, more photovoltaic panels can be added along the direction of the arrow, that is, in the direction of the -A type overlap frame, to form a larger interconnected photovoltaic panel system. Figure 15 It is the assembly of multiple photovoltaic panels into place, such as Figure 14 The image shown is a detailed view of the corner of every four photovoltaic panels. (From...) Figure 15 It is known that when the photovoltaic panel units 8 of this invention are overlapped to form a sheet, two small square gaps H1 and H2 will be formed at the corners of the four photovoltaic panels, where there are no overlapping edges extending outwards from the overlapping frame. Regarding... Figure 15 The corner gap shown in the invention provides, as described above. Figure 16 , Figure 17The sealing technology solution shown is as follows. Figure 16 This is a plan view of the corner seal. Figure 17 for Figure 16 cross section Figure 2-2 .like Figure 16 , 17 As shown, the protective block E and the sealant F are large enough to completely cover the two small gaps H1 and H2. The sealant not only seals the gaps but also adheres to the protective block E, thus completely sealing the two small gaps. In summary, Figure 10 The photovoltaic panels shown form a complete sealed surface system through the overlapping of the frame and the corner sealing structure.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. For example, for Figure 6 and Figure 7 The installation profile shown allows for the use of self-drilling screws instead of bolts, eliminating the need for pre-drilling holes in the frame and support beams, thus facilitating rapid installation. For example, photovoltaic panel units can be any parallelogram shape, requiring only the same frame arrangement principles and corner construction rules. Furthermore, photovoltaic panel units can also be single-curved quadrilateral units, which can overlap to form a larger sealed single-curved surface, such as a cylinder.

Claims

1. A photovoltaic panel with an overlapping frame and its sealing surface system, characterized in that, include: The photovoltaic panel has two types of overlapping frames, +A and -A, both of which have extended overlapping edges. The +A and -A overlapping frames can form an overlapping structure by their respective extended overlapping edges. For photovoltaic panels with these two types of frames as installation edges, the frame arrangement follows the principle of different opposite sides, that is, every two parallel sides are different frame types. A special sealing structure is provided to seal the small corner gaps of the four panels.

2. The photovoltaic panel and its sealing surface system according to claim 1, characterized in that: When rigid extended overlapping edges form an overlapping relationship, there are tiny gaps in all directions. A sealed overlap is formed by pressing a flexible sealing material into the gap space.

3. The +A type overlapping frame as described in claim 1, characterized in that: Its extended overlapping edge has its top surface flush with the top surface of the frame, and when it overlaps with the -A type overlapping frame, it is on the upper outer side.

4. The A-type overlapping frame as described in claim 1, characterized in that: Its extended overlapping edge is lower than the top surface of the frame, and when it overlaps with the +A type overlapping frame, it is on the inner lower side.

5. The photovoltaic panel with overlapping frame as described in claim 1, characterized in that: The plane shape is a parallelogram.

6. The photovoltaic panel with overlapping frame as described in claim 1, characterized in that: At the corners where two identical frames intersect, all edges of the frame, including the overlap width, are joined together after being cut along the diagonal of the photovoltaic panel. At the corners where different frames intersect, only the non-overlapping edges of the frame are joined together after being cut along the diagonal, and the overlap does not extend into the corner overlap area.

7. The specialized sealing structure according to claim 1, characterized in that: Small gaps at the corners are sealed with sealant, and a protective block is then bonded to the outside of the sealant.

8. The overlapping edge of the A-type overlapping frame as described in claim 4, characterized in that: The upper part is equipped with a sealing groove for positioning and installing sealing materials.

9. The sealing surface system of claim 1, characterized in that: Photovoltaic panels are installed by extending the overlap to the side where the -A type overlap frame is located.

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