Photovoltaic roof

Abstract

The present application provides a photovoltaic roof, comprising: mounts, each provided with a connecting plate, a supporting plate, a first snap hook, and a stop plate, wherein one end of the supporting plate, one end of the first snap hook, and one end of the stop plate are connected to the connecting plate, the other end of the supporting plate, the other end of the first snap hook, and the other end of the stop plate extend towards the same side in a slope direction of the photovoltaic roof, and the first snap hook is disposed between the supporting plate and the stop plate; and photovoltaic tiles, each provided with a first frame and a second frame which are opposite to each other, wherein the first frame is provided with a second snap hook extending away from a laminate in the photovoltaic tile, the second snap hook is snap-fitted to the first snap hook, a bottom plate of the first frame abuts against the corresponding supporting plate, and the second frame is in lap joint with an adjacent photovoltaic tile. In the photovoltaic roof of the present application, the photovoltaic tiles are detachably connected to the mounts, each second frame is in lap joint with the upper surface of an adjacent photovoltaic tile in the slope direction, and at least part of a limiting plate of the second frame is located below the corresponding mount. On one hand, it is convenient to remove the photovoltaic tile, thereby reducing the difficulty in maintaining the photovoltaic tile, and on the other hand, the wind uplift resistance of the photovoltaic tile is improved.

Description

Photovoltaic roof Technical Field

[0001] The present application mainly relates to the field of photovoltaic technology, and specifically to a photovoltaic roof. Background Art

[0002] A photovoltaic roof is a new type of environmentally friendly roof covered with photovoltaic tiles, enabling buildings to generate electricity from solar energy. There are two main methods for laying photovoltaic tiles on a roof: flat-lay, where adjacent tiles are laid flush against each other; and overlapped, where adjacent tiles are laid in an overlapping pattern, in the direction of the roof's slope. The overlapped pattern requires reliable connection between adjacent tiles along the roof's slope, while also facilitating subsequent repair and replacement. After installation, the forces acting between the tiles and between them and the roof are complex, making the proper design of each component of the photovoltaic roof a prerequisite for long-term, stable operation. Furthermore, photovoltaic roofs are subject to wind and rain, and timely and effective drainage of rainwater from the roof, as well as preventing the tiles from being lifted by the wind, are also essential requirements.

[0003] Summary of the Invention

[0004] The technical problem to be solved by the present application is to provide a photovoltaic roof that can reduce the difficulty of maintenance of the photovoltaic roof; can drain rainwater in a timely manner, and has excellent wind-resistant properties; in addition, the components in the photovoltaic roof are low in cost and have excellent mechanical properties.

[0005] The technical solution adopted in this application to solve the above-mentioned technical problems is a photovoltaic roof, comprising: a mounting support, having a connecting plate, a support plate, a first hook and a baffle, one end of the support plate, one end of the first hook and one end of the baffle being connected to the connecting plate, and the other ends extending to the same side along the slope direction of the photovoltaic roof, the first hook being arranged between the support plate and the baffle; and a photovoltaic tile, having a first frame and a second frame opposite to each other along the slope direction, the first frame having a second hook extending back to the laminate in the photovoltaic tile, the second hook being engaged with the first hook, the bottom plate of the first frame being in contact with the support plate, and the second frame being overlapped on the adjacent photovoltaic tile.

[0006] In one embodiment of the present application, the second frame has a limiting plate, and the extension direction of the limiting plate is the same as the extension direction of the second hook, wherein at least part of the limiting plate is located along the first direction between the adjacent photovoltaic tiles and the mounting support connected to the adjacent photovoltaic tiles.

[0007] In one embodiment of the present application, the limiting plate has a cavity.

[0008] In one embodiment of the present application, the baffle has a first protrusion and a first groove adjacent to each other along the slope direction, and the limiting plate has a second protrusion and a second groove adjacent to each other along the slope direction, and the second protrusion is arranged opposite to the first protrusion along the first direction.

[0009] In one embodiment of the present application, the height of the first protrusion, the depth of the second groove, and the height of the second protrusion and the depth of the first groove are the same.

[0010] In one embodiment of the present application, the width of the second groove is equal to or greater than the width of the first protrusion.

[0011] In an embodiment of the present application, the width of the first protrusion is equal to or greater than the width of the second protrusion, and / or the width of the first protrusion is smaller than the width of the second protrusion.

[0012] In one embodiment of the present application, a waterproof pad is further provided, which is arranged along the first direction between the second frame and the photovoltaic tile it overlaps.

[0013] In one embodiment of the present application, one or more water retaining strips are further provided on the surface of the first frame facing the baffle.

[0014] In one embodiment of the present application, the portion where the support plate and the bottom plate abut against each other is an inclined surface, and the inclined surface is inclined downward in a direction approaching the connecting plate.

[0015] In one embodiment of the present application, a purlin is further included, the purlin extends along a second direction, the mounting bracket is connected to the purlin, wherein the slope direction intersects with the second direction.

[0016] In one embodiment of the present application, the mounting bracket further has a side plate, which is arranged on a surface of the support plate away from the baffle along the first direction and extends back toward the baffle along the first direction, wherein the support plate and the side plate are respectively in contact with two adjacent surfaces of the purlin.

[0017] In one embodiment of the present application, the photovoltaic tile further includes a third frame and a fourth frame, and the third frame and the fourth frame are arranged relative to each other along the second direction, wherein the third frame and / or the fourth frame of the photovoltaic tile overlaps with the photovoltaic tile adjacent to the second direction.

[0018] In one embodiment of the present application, conventional tiles are also included, and the conventional tiles are overlapped with the photovoltaic tiles along the slope direction and / or overlapped with the photovoltaic tiles along the second direction.

[0019] In one embodiment of the present application, the height of the first hook is 10 mm to 30 mm, and the height of the second hook is 10 mm to 30 mm, wherein the height of the overlapping portion after the first hook and the second hook are engaged is equal to or greater than 10 mm.

[0020] The photovoltaic roof system of this application features a removable first frame connected to the mounting bracket. The second frame overlaps the upper surface of the adjacent photovoltaic tile along the slope, with at least a portion of the second frame's retaining plate positioned below the mounting bracket's baffle. This facilitates the removal of the photovoltaic tile, reducing maintenance difficulties, and improves its wind-tightness.

[0021] Summary of the Figures

[0022] The features and properties of the present invention are further described by the following examples and accompanying drawings.

[0023] In order to make the above-mentioned objects, features and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings, wherein:

[0024] FIG1A is a perspective schematic diagram of a building roof without photovoltaic tiles in one embodiment of the present application;

[0025] 1B and 1C are three-dimensional schematic diagrams of photovoltaic roofs according to different embodiments of the present application;

[0026] FIG1D is a schematic side view of the photovoltaic roof in FIG1B ;

[0027] FIG2A is a perspective schematic diagram of a photovoltaic tile according to an embodiment of the present application;

[0028] FIG2B is a schematic top view of the photovoltaic tile in FIG2A ;

[0029] FIG2C is a schematic front view of the photovoltaic tile in FIG2A ;

[0030] FIG2D is a schematic side view of the photovoltaic tile in FIG2A ;

[0031] FIG3A is a perspective schematic diagram of a mounting bracket in one embodiment of the present application;

[0032] FIG3B is a schematic front view of the mounting bracket in FIG3A ;

[0033] FIG4A is a schematic diagram of the overlap between photovoltaic tiles in one embodiment of the present application;

[0034] FIG4B is an enlarged schematic diagram of a local structure in FIG4A ;

[0035] FIG4C , FIG4D , and FIG4E are respectively partial enlarged schematic diagrams of the circle B in FIG4A at different stages of the photovoltaic tile disassembly process;

[0036] FIG4F is a schematic diagram of a baffle preventing photovoltaic tiles from being lifted up in one embodiment of the present application.

[0037] Figure markings include building roof 10, through hole 115, third frame 123, mounting support 110, side panel 116, fourth frame 124, first mounting support 110-1, photovoltaic tile 120, first photovoltaic tile 120-1, second mounting support 110-2, first frame 121, second photovoltaic tile 120-2, connecting plate 111, second hook 121a, laminate 130, support plate 112, bottom plate 121b, waterproof pad 140, slope 112, second frame 122, purlin 150, first hook 113, limit plate 122a, conventional tile 160, baffle 114, second protrusion 122a-1, water-retaining strip 170, first protrusion 114a, second groove 122a-2, water-retaining strip 180, first groove 114b, cavity 122a-3.

[0038] Preferred embodiments of the present invention

[0039] In order to make the above-mentioned objectives, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0041] As used in this application and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is solely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. Furthermore, while the terms used in this application are selected from commonly known and commonly used terms, some terms mentioned in this specification may have been selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant sections of this description. Furthermore, this application should be understood not only by the actual terms used, but also by the meaning implied by each term.

[0043] Next, the photovoltaic roof of the present application is described through specific embodiments.

[0044] Figure 1A is a three-dimensional schematic diagram of a building roof without photovoltaic tiles in one embodiment, Figures 1B and 1C are three-dimensional schematic diagrams of photovoltaic roofs in different embodiments, and Figure 1D is a side view schematic diagram of the photovoltaic roof in Figure 1B. Referring to Figures 1A to 1D, the building roof 10 is an inclined slope. For the convenience of description, the inclination direction of the building roof 10 is referred to as the slope direction D3. The parts of the building roof 10 located at both ends along the slope direction D3 have a height difference in the first direction D1, and this application does not limit this height difference. A plurality of water-bearing strips 170 and a plurality of purlins 150 are provided on the building roof 10. The plurality of water-bearing strips 170 are arranged at intervals along the second direction D2, and each water-bearing strip 170 extends along the slope direction D3. The plurality of purlins 150 are arranged at intervals along the slope direction D3, and each purlin 150 extends along the second direction D2, and the purlins 150 are provided on the water-bearing strips 170.

[0045] As shown in Figure 1A, drainage strips 170 extend along the slope direction D3 and can be used to drain rainwater from the building roof 10. Purlins 150 extend along the second direction D2. Mounting brackets for photovoltaic tiles and conventional tiles can be mounted on purlins 150, as will be discussed later. Conventional tiles, for example, those made of ceramic or cement, are not suitable for power generation.

[0046] Multiple photovoltaic tiles 120 are laid on the building roof 10 along the second direction D2 and the third direction D3. Referring to FIG1B , the dimensions of the building roof 10 along the slope direction D3 do not match the integral number of photovoltaic tiles 120. Therefore, conventional tiles 160 are laid adjacent to the photovoltaic tiles 120 located at the edge in the slope direction D3. Similarly, the dimensions of the building roof 10 along the second direction D2 do not match the integral number of photovoltaic tiles 120. Therefore, conventional tiles 160 are laid adjacent to the photovoltaic tiles 120 located at the edge in the second direction D2. It should be understood that even if the dimensions of the building roof 10 do not match the integral number of photovoltaic tiles 120, conventional tiles 160 do not need to be laid.

[0047] Comparing reference figures 1B and 1C, the photovoltaic tiles 120 in FIG1B are neatly laid in the slope direction D3, while the photovoltaic tiles 120 in FIG1C are staggered in the slope direction D3. This application does not limit the laying method of the photovoltaic tiles 120. The specific laying method of the photovoltaic tiles 120 can be set according to the shape of the building roof 10, the size of the building roof 10, the appearance requirements of the photovoltaic roof, etc. In FIG1B and FIG1C, there are parts of the building roof 10 that are not laid with photovoltaic tiles 120 and / or conventional tiles 160. Photovoltaic tiles 120 and / or conventional tiles 160 covering specific areas can be laid on the building roof 10 as needed, not limited to those shown in FIG1B and FIG1C.

[0048] Figure 2A is a three-dimensional schematic diagram of a photovoltaic tile in one embodiment, Figure 2B is a top schematic diagram of the photovoltaic tile in Figure 2A, Figure 2C is a front schematic diagram of the photovoltaic tile in Figure 2A, and Figure 2D is a side schematic diagram of the photovoltaic tile in Figure 2A. For the convenience of description, the photovoltaic tile 120 is described using the orientation of the photovoltaic tile 120 in Figures 1A and 1B. The photovoltaic tile 120 has a first frame 121 and a second frame 122 relative to each other along the slope direction D3, and a third frame 123 and a fourth frame 124 relative to each other along the second direction D2. The four sides of the laminate 130 are respectively connected to the corresponding frames. In some embodiments, the photovoltaic tile 120 may not include the third frame 123 and the fourth frame 124.

[0049] As shown in Figures 1A and 1B , the first frame 121 of the photovoltaic tile 120 is connected to the mounting bracket, and the second frame 122 overlaps the photovoltaic tile adjacent in the slope direction D3 and located below in the first direction D1. The third frame 123 overlaps the fourth frame of an adjacent photovoltaic tile in the second direction D2, and the fourth frame 124 overlaps the third frame of another adjacent photovoltaic tile in the second direction D2.

[0050] As shown in Figures 1B and 1D, conventional tiles 160 can be overlapped adjacent to photovoltaic tiles 120 along the slope direction D3. Specifically, the end of the conventional tile 160 away from the photovoltaic tile 120 along the slope direction D3 is overlapped on the purlin 150, and the end close to the photovoltaic tile 120 is overlapped on the adjacent photovoltaic tile 120. Conventional tiles 160 can also be overlapped adjacent to photovoltaic tiles 120 along the second direction D2. Specifically, the two opposite ends of the conventional tile 160 along the second direction D2 have structures similar to the third and fourth frames of the photovoltaic tile, respectively. In this way, the conventional tiles 160 and photovoltaic tiles 120 can be overlapped in the same manner as adjacent photovoltaic tiles along the second direction D2. The photovoltaic tiles of the present application can be mixed with conventional tiles and laid on the surface of the building, and the overlapping method between the photovoltaic tiles and the conventional tiles is similar to the overlapping method between photovoltaic tiles, which improves the integration of photovoltaic tiles and conventional tiles.

[0051] Next, the connection method between photovoltaic tiles and building roofs is explained.

[0052] Figure 3A is a perspective schematic diagram of a mounting bracket according to one embodiment, and Figure 3B is a front schematic diagram of the mounting bracket in Figure 3A. Referring to Figures 3A and 3B, the mounting bracket 110 comprises a connecting plate 111, a support plate 112, a first hook 113, and a baffle 114. The connecting plate 111 extends along a first direction D1. One end of the support plate 112, one end of the first hook 113, and one end of the baffle 114 are all connected to the connecting plate 111. The other ends of the support plate 112, the other ends of the first hook 113, and the other ends of the baffle 114 extend toward the same side along a slope direction D3. The first hook 113 is disposed between the support plate 112 and the baffle 114 in the first direction D1. A first accommodating space S1 is formed between the first hook 113 and the baffle 114, and a second accommodating space S2 is formed between the first hook 113 and the support plate 112.

[0053] 2D , the first frame 121 has a second hook 121a and a bottom plate 121b . The second hook 121a extends along a slope direction D3 away from the laminate 130 , and the bottom plate 121b is disposed opposite to the second hook 121a along the first direction D1 .

[0054] Figure 4A is a schematic diagram of the overlapped photovoltaic tiles in one embodiment, and Figure 4B is an enlarged schematic diagram of a partial structure in Figure 4A . The right image in Figure 4B is an enlarged schematic diagram of a partial circle A in Figure 4A , and the left image is an enlarged schematic diagram of a partial circle B. For ease of description, the photovoltaic tiles overlapped along slope direction D3 in Figure 4A are referred to as first photovoltaic tile 120-1 and second photovoltaic tile 120-2, respectively. Second photovoltaic tile 120-2 is located below first photovoltaic tile 120-1 in first direction D1. The mounting bracket connected to first frame 121 of first photovoltaic tile 120-1 is referred to as first mounting bracket 110-1, and the mounting bracket connected to first frame 121 of second photovoltaic tile 120-2 is referred to as second mounting bracket 110-2.

[0055] Referring to Figures 4A, 4B and 3A, the mounting bracket 110 is connected to the purlin 150, and the purlin 150 fixes the mounting bracket 110. In one embodiment, the mounting bracket 110 has a through hole 115, and screws can be used to pass through the through hole 115 to connect the mounting bracket 110 to the purlin 150. This application does not limit the connection method between the purlin 150 and the mounting bracket 110. Referring to Figures 3A and 3B, in some embodiments, the mounting bracket 110 has a side panel 116. The side panel 116 is provided on a surface of the support plate 112 away from the baffle 114 in the first direction D1, and extends away from the baffle 114 along the first direction D1. Referring to Figure 4B, the support plate 112 and the side panel 116 are respectively attached to two adjacent surfaces of the purlin 150. The mounting bracket 110 distributes force to both surfaces of the purlin 150 via the support plate 112 and the side plates 116, which helps prevent the purlin 150 from twisting due to single-sided force. It should be understood that the mounting bracket 110 can also be installed directly on the building roof, and the purlin 150 is not required. In addition, when the load is large and the purlin 150 cannot provide sufficient torque, the side plates 116 can be designed to extend to contact the building roof to provide auxiliary support and anti-torsion functions, reducing the bending and torsional resistance requirements of the purlin 150 and saving costs.

[0056] The relationship between the first frame, the second frame and the mounting bracket of the photovoltaic tile is described in conjunction with Figure 2D, Figure 3B and Figure 4B. For the convenience of description, the first photovoltaic tile 120-1 is used as an example for description.

[0057] The second hook 121a in the first frame 121 of the first photovoltaic tile 120-1 engages with the first hook 113 of the first mounting bracket 110-1, and the bottom plate 121b of the first frame 121 abuts the support plate 112 of the first mounting bracket 110-1. As shown in the enlarged view on the right side of Figure 4B, the first hook of the first mounting bracket 110-1 provides tension to the first frame 121 along the slope direction D3, thereby preventing the first photovoltaic tile 120-1 from sliding due to external forces such as gravity. The support plate 112 of the first mounting bracket 110-1 provides support for the first frame 121. In some embodiments, the height of the first hook 113 is 10 mm to 30 mm, for example, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm; the height of the second hook 121a is 10 mm to 30 mm, for example, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm. When the first hook 113 is engaged with the second hook 121a, the height of the overlapping portion therebetween is equal to or greater than 10 mm, such as 15 mm, 20 mm, 25 mm or 30 mm, thereby improving the reliability of the connection between the photovoltaic tile and the mounting bracket.

[0058] As shown in Figures 3A and 3B, in one embodiment, the support plate 112 and the bottom plate are connected by an inclined surface 112a. The inclined surface 112a is inclined downward in the direction close to the connecting plate 111. In other words, the portion of the inclined surface 112a away from the connecting plate 111 in the slope direction D3 is higher than the portion close to the connecting plate 111 in the first direction D1. In conjunction with Figures 2D and 4B, if the inclined surface 112a is not provided at the abutment between the support plate 112 and the bottom plate 121b, the first frame 121 and the support plate 112 are in line contact. After the inclined surface 112a is provided, the support plate 112 and the first frame 121 are in surface contact, which improves the stability of the first frame 121.

[0059] As shown in the enlarged view on the left side of Figure 4B , the second frame 122 of the first photovoltaic tile 120-1 overlaps the second photovoltaic tile 120-2, and the second photovoltaic tile 120-2 provides support for the second frame 122 of the first photovoltaic tile 120-1. The connection between the first frame 121 of the second photovoltaic tile 120-2 and the second mounting support 110-2 is similar to the connection between the first photovoltaic tile 120-1 and the first mounting support 110-1, and will not be further explained here or below.

[0060] Referring to FIG2D , in one embodiment, the photovoltaic roof further includes a waterproof pad 140. In conjunction with FIG4B , the waterproof pad 140 is disposed along a first direction D1 between the second frame 122 of the first photovoltaic tile 120-1 and the second photovoltaic tile 120-2. The waterproof pad 140 can prevent rainwater from entering the space below the photovoltaic tile through the gap between the second frame 122 of the first photovoltaic tile 120-1 and the second photovoltaic tile 120-2. The waterproof pad 140 can be made of a material with a certain degree of elasticity (e.g., rubber) so that it can fit tightly with the frame and the photovoltaic tile, thereby providing a good sealing effect.

[0061] Continuing with reference to FIG2D , in one embodiment, the photovoltaic roof further includes a water retaining strip 180. Referring to FIG3B and FIG4B , the water retaining strip 180 is disposed on the surface of the first frame 121 of the second photovoltaic tile 120-2 facing the baffle 114, and is located between the second frame 122 of the first photovoltaic tile 120-1 and the connecting plate 111 in the slope direction D3. When the first photovoltaic tile 120-1 is lifted by the wind, a gap is created between the waterproof pad 140 and the second photovoltaic tile 120-2. There is a risk that rainwater will flow back through the gap and into the bottom of the photovoltaic tile. Providing a water retaining strip 180 on the backflow path of rainwater can prevent rainwater from entering the bottom of the photovoltaic tile.

[0062] As shown in Figure 2D , the second frame 122 has a retaining plate 122a. Retaining plate 122a is connected to the side of cavity 122b and extends toward laminate 130 along a slope direction D3. In other words, retaining plate 122a extends in the same direction as the second hook 121a in the first frame 121 of the same photovoltaic tile. Retaining plate 122a is connected to the portion of cavity 122b away from laminate 130 along a first direction D1. As shown in Figure 2D , retaining plate 122a is a hollow structure, which helps reduce the manufacturing cost of the second frame 122.

[0063] As shown in Figures 2D, 3B, and 4B, as previously described, first photovoltaic tile 120-1 and second photovoltaic tile 120-2 are adjacent in slope direction D3. At least a portion of retaining plate 122a of second frame 122 of first photovoltaic tile 120-1 is positioned below baffle 114 in second mounting support 110-2. In other words, at least a portion of retaining plate 122a is positioned between second photovoltaic tile 120-2 and second mounting support 110-2 along first direction D1.

[0064] As shown in the enlarged view of circle B in Figure 4B , the first frame 121 of the second photovoltaic tile 120-2 is connected to the second mounting bracket 110-2. The second frame 122 of the first photovoltaic tile 120-1 is located above the second photovoltaic tile 120-2 in the first direction D1, and a portion of the limiting plate 122a in the second frame 122 is located below the baffle 114. If the first photovoltaic tile 120-1 is lifted by wind, the baffle 114 above the limiting plate 122a can prevent the first photovoltaic tile 120-1 from being lifted. As shown in Figure 4F , after the first photovoltaic tile 120-1 is lifted a certain distance, the limiting plate 122a contacts the baffle 114, preventing the limiting plate 122a from further upward movement, thereby preventing the first photovoltaic tile 120-1 from being lifted.

[0065] As shown in FIG4B , the limiting plate 122a is not in contact with the baffle 144, forming a gap S3 between the two in the first direction D1. The gap S3 allows the first photovoltaic tile 120-1 to be lifted a certain distance, but the baffle 114 located above the limiting plate 122a in the first direction D1 prevents the first photovoltaic tile 120-1 from being lifted further.

[0066] 3B , in one embodiment, the baffle 114 of the mounting bracket 110 has a first protrusion 114a and a first groove 114b adjacent to each other along the slope direction D3. The first protrusion 114a is provided at one end of the baffle 114 away from the connecting plate 111 along the slope direction D3. The first groove 114b is located between the first protrusion 114a and the connecting plate 111 along the slope direction D3. The opening of the first groove 114b faces the support plate 112.

[0067] As shown in FIG2D , the limiting plate 122a of the second frame 122 has a second protrusion 122a-1 and a second groove 122a-2 adjacent to each other along a slope direction D3. The second protrusion 122a-1 is disposed at an end of the limiting plate 122a away from the cavity 122b along the slope direction D3. The second groove 122a-2 is located between the second protrusion 122a-1 and the cavity 122b along the slope direction D3. The opening of the second groove 122a-2 faces the laminate 130. As shown in FIG2D , in some embodiments, the limiting plate 122a has a cavity 122a-3. In other words, the limiting plate 122a is a hollow structure. The cavity 122a-3 is adjacent to the cavity 122b and extends along the third direction D3. The cavity 122a-3 helps reduce the material consumption of the second frame 122 and facilitates the manufacture of the second frame 122. It should be understood that the limiting plate 122a may also be a plate-shaped structure, that is, the limiting plate 122a with a hollow structure is designed to be a solid structure.

[0068] As shown in Figures 2D, 3B, and 4B, second protrusion 122a-1 is positioned opposite first protrusion 114a in a first direction D1. Second protrusion 122a-1 is positioned below first protrusion 114a, and first protrusion 114a and second protrusion 122a-1 project toward each other, i.e., they project in opposite directions. After first photovoltaic tile 120-1 is lifted, second protrusion 122a-1 contacts first protrusion 114a, and first protrusion 114a can limit further lifting of first photovoltaic tile 120-1. In some embodiments, to ensure that first protrusion 114a reliably limits further lifting of first photovoltaic tile 120-1 after lifting, the width of first protrusion 114a is greater than the width of second protrusion 122a-1, and / or the width of first protrusion 114a is less than the width of second protrusion 122a-1. As shown below, even in the presence of installation errors, thanks to the large projected areas of the first protrusion 114a and / or the second protrusion 122a-1 along the first direction D1, after the first photovoltaic tile 120-1 is lifted, the first protrusion 114a can still contact the second protrusion 122a-1. Of course, in other embodiments, the width of the first protrusion 114a can also be equal to the width of the second protrusion 122a-1.

[0069] The above-mentioned designs of the first protrusion 114a, the second protrusion 122a-1, the first groove 114b and the second groove 122a-2 are beneficial to the replacement and maintenance of the photovoltaic tiles, which will be described below.

[0070] Figures 4C, 4D, and 4E are respectively partial enlarged schematic diagrams of the area circled B in Figure 4A at different stages of the photovoltaic tile removal process. Referring to Figures 4B and 4C, and in conjunction with Figures 2D and 3B, the process of removing the second photovoltaic tile 120-2 is as follows:

[0071] Move the first photovoltaic tile 120-1 toward the first mounting support 110-1 along the slope direction D3, while simultaneously lifting the second frame 122 of the first photovoltaic tile 120-1 along the first direction D1, so that the first protrusion 114a and the second protrusion 122a-1 enter the second groove 122a-2 and the first groove 114b, respectively. This creates a gap S4 between the waterproof pad 140 and the top surface of the second photovoltaic tile 120-2. As shown in Figures 2D and 3B , to allow the first protrusion 114a to enter the second groove 122a-2, the width of the second groove 122a-2 in the third direction D3 is equal to or greater than the width of the first protrusion 114a in the third direction D3.

[0072] 4C and 4D , after the gap S4 is formed, the first frame 121 of the second photovoltaic tile 120 - 2 is lifted along the first direction D1 and the first frame 121 is moved away from the second mounting bracket 110 - 2 along the slope direction D3 to separate the first hook 113 from the second hook 121 a .

[0073] 4D and 4E , after the first hook 113 is separated from the second hook 121 a , the second photovoltaic tile 120 - 2 is moved away from the second mounting bracket 110 - 2 along the slope direction D3 , thus completing the disassembly process of the second photovoltaic tile 120 - 2 .

[0074] From the above description of the process of disassembling the second photovoltaic tile 120-2, it can be seen that no additional tools are required during the disassembly process. After lifting the second frame of the first photovoltaic tile 120-1, the second photovoltaic tile 120-2 can be moved out from under the first photovoltaic tile 120-1, which improves the efficiency of disassembling the photovoltaic tiles and reduces the difficulty of repairing the photovoltaic tiles.

[0075] As shown in Figures 4C and 4D , the dimension of gap S4 in the first direction D1 should meet the minimum dimension required to pull the second photovoltaic tile 120-2 out from under the first photovoltaic tile 120-1. As shown in Figure 2D , in one embodiment, the height of second protrusion 122a-1 in the first direction D1 is H1, and correspondingly, the depth of second groove 122a-2 in the first direction D1 is also H1. As shown in Figure 3B , the height of first protrusion 114a in a direction perpendicular to baffle 114 is H2, and correspondingly, the depth of first groove 114b is also H2, with H1 and H2 being equal. As shown in Figure 4C , in this manner, first protrusion 114a and second protrusion 122a-1, upon entering second groove 122a-2 and first groove 114b, respectively, can contact the bottom surfaces of the corresponding grooves. This facilitates increasing the dimension of gap S4 in the first direction D1 while maintaining the same distance between baffle 114 and second photovoltaic tile 120-2 in the first direction D1.

[0076] In the above-mentioned embodiment of the present application, the first frame of the photovoltaic tile is detachably connected to the mounting bracket, and the second frame overlaps the upper surface of the adjacent photovoltaic tile along the slope, with at least a portion of the second frame's retaining plate located below the mounting bracket baffle. This not only facilitates the removal of the photovoltaic tile, but also improves the photovoltaic tile's resistance to wind uplift.

[0077] The basic concepts have been described above. It will be apparent to those skilled in the art that the above disclosures are merely examples and do not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and revisions to the present application. Such modifications, improvements, and revisions are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0078] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0079] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

Claims

1. A photovoltaic roof, characterized in that: include: The mounting bracket comprises a connecting plate, a supporting plate, a first hook and a baffle, wherein one end of the supporting plate, one end of the first hook and one end of the baffle are connected to the connecting plate, and the other ends extend to the same side along the slope direction of the photovoltaic roof, and the first hook is arranged between the supporting plate and the baffle; as well as The photovoltaic tile has a first frame and a second frame opposite to each other along the slope direction, the first frame has a second hook extending away from the laminate in the photovoltaic tile, the second hook is engaged with the first hook, the bottom plate of the first frame is in contact with the support plate, and the second frame overlaps the adjacent photovoltaic tile.

2. The photovoltaic roof according to claim 1, characterized in that: The second frame has a limiting plate, and the extending direction of the limiting plate is the same as the extending direction of the second hook, wherein at least part of the limiting plate is located between the adjacent photovoltaic tiles and the mounting support connected to the adjacent photovoltaic tiles along the first direction.

3. The photovoltaic roof according to claim 2, characterized in that: The limiting plate has a cavity.

4. The photovoltaic roof according to claim 2, characterized in that: The baffle has a first protrusion and a first groove adjacent to each other along the slope direction, and the limiting plate has a second protrusion and a second groove adjacent to each other along the slope direction, wherein the second protrusion is arranged opposite to the first protrusion along the first direction.

5. The photovoltaic roof according to claim 4, characterized in that: The height of the first protrusion, the depth of the second groove, and the height of the second protrusion and the depth of the first groove are the same.

6. The photovoltaic roof according to claim 4, characterized in that: The width of the second groove is equal to or greater than the width of the first protrusion.

7. The photovoltaic roof according to claim 4, characterized in that: The width of the first protrusion is equal to or greater than the width of the second protrusion, and / or the width of the first protrusion is smaller than the width of the second protrusion.

8. The photovoltaic roof according to claim 1, characterized in that It also includes a waterproof pad, which is arranged along the first direction between the second frame and the photovoltaic tile overlapped therewith.

9. The photovoltaic roof according to claim 1, characterized in that It also includes one or more water retaining strips, which are arranged on the surface of the first frame facing the baffle.

10. The photovoltaic roof according to claim 1, characterized in that: The place where the support plate and the bottom plate abut against each other is an inclined surface, and the inclined surface is inclined downward in a direction close to the connecting plate.

11. The photovoltaic roof according to claim 1, characterized in that It also includes a purlin, which extends along a second direction, and the mounting bracket is connected to the purlin, wherein the slope direction intersects with the second direction.

12. The photovoltaic roof according to claim 11, characterized in that: The mounting bracket also has a side plate, which is arranged on a surface of the support plate away from the baffle along the first direction and extends away from the baffle along the first direction, wherein the support plate and the side plate are in contact with two adjacent surfaces of the purlin respectively.

13. The photovoltaic roof according to claim 1, characterized in that: The photovoltaic tile further includes a third frame and a fourth frame, and the third frame and the fourth frame are arranged opposite to each other along a second direction, wherein the third frame and / or the fourth frame of the photovoltaic tile overlaps with the photovoltaic tile adjacent to the second direction.

14. The photovoltaic roof according to claim 1, characterized in that It also includes conventional tiles, which overlap with the photovoltaic tiles along the slope direction and / or overlap with the photovoltaic tiles along the second direction.

15. The photovoltaic roof according to claim 1, characterized in that: The height of the first hook is 10 mm to 30 mm, and the height of the second hook is 10 mm to 30 mm, wherein the height of the overlapping portion of the first hook and the second hook after being engaged is equal to or greater than 10 mm.

Images