CN116591401B

CN116591401B - photovoltaic roof

Info

Publication number: CN116591401B
Application number: CN202310869982.7A
Authority: CN
Inventors: 谢一帆; 范喜燕; 曾飞; 李程焕; 张磊; 蒋阿华
Original assignee: Trina Solar Co Ltd
Current assignee: Trina Solar Co Ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2023-10-20
Anticipated expiration: 2043-07-17
Also published as: CN116591401A

Abstract

The application provides a photovoltaic roofing, comprising: the mounting support is provided with a connecting plate, a supporting plate, a first clamping hook and a baffle, one end of the supporting plate, one end of the first clamping hook and one end of the baffle are connected with the connecting plate, the other end of the supporting plate extends to the same side along the gradient direction of the photovoltaic roof, and the first clamping hook is arranged between the supporting plate and the baffle; the photovoltaic tile is provided with a first frame and a second frame which are opposite, the first frame is provided with a second clamping hook which extends back to the photovoltaic tile laminate, the second clamping hook is clamped with the first clamping hook, the bottom plate of the first frame is abutted with the supporting plate, and the second frame is lapped on the adjacent photovoltaic tile. According to the photovoltaic roof, the photovoltaic tiles are detachably connected with the mounting support, the second frame is lapped on the upper surfaces of the adjacent photovoltaic tiles along the gradient direction, and at least one part of the limiting plate of the second frame is positioned below the mounting support. The photovoltaic tile is convenient to detach, the maintenance difficulty of the photovoltaic tile is reduced, and the wind uncovering resistance of the photovoltaic tile is improved.

Description

Photovoltaic roof

Technical Field

The application mainly relates to the technical field of photovoltaics, in particular to a photovoltaic roof.

Background

Photovoltaic roofing is a new type of environmental protection roofing that lays photovoltaic tiles, which enables buildings to utilize solar energy to generate electricity. The main modes of paving the photovoltaic tiles on the roof comprise two modes: one is tiled, and the adjacent photovoltaic tiles are laid in parallel; the other is lap joint type, and adjacent photovoltaic tiles are mutually layered and paved in the gradient direction of the roof. The overlap joint requires reliable connection between adjacent photovoltaic tiles in the roof gradient direction, and meanwhile, the subsequent maintenance and replacement of the photovoltaic tiles are convenient. The stress between the laid photovoltaic tiles and between the photovoltaic tiles and the roof is complex, and each part in the photovoltaic roof is reasonably designed to be a precondition for ensuring long-term stable work of the photovoltaic roof. In addition, the photovoltaic roof can meet the condition of blowing and showering, so that rainwater on the photovoltaic roof can be effectively discharged in time, and the photovoltaic roof is prevented from being lifted by wind.

Disclosure of Invention

The technical problem to be solved by the application is to provide the photovoltaic roof, which can reduce the maintenance difficulty of the photovoltaic roof; the rainwater can be discharged in time, and the wind uncovering resistance is excellent; in addition, the component in the photovoltaic roof is low in cost and excellent in mechanical property.

The technical scheme adopted by the application for solving the technical problems is a photovoltaic roof, comprising: the mounting support is provided with a connecting plate, a supporting plate, a first clamping hook and a baffle, one end of the supporting plate, one end of the first clamping hook and one end of the baffle are connected with the connecting plate, the other end of the supporting plate extends to the same side along the gradient direction of the photovoltaic roof, and the first clamping hook is arranged between the supporting plate and the baffle; and the photovoltaic tile is provided with a first frame and a second frame which are opposite along the gradient direction, the first frame is provided with a second clamping hook which is opposite to the photovoltaic tile and extends from the laminating piece, the second clamping hook is clamped with the first clamping hook, the bottom plate of the first frame is abutted to the supporting plate, and the second frame is lapped on the adjacent photovoltaic tile.

In an embodiment of the application, the second frame has a limiting plate, and an extending direction of the limiting plate is the same as an extending direction of the second hook, where at least part of the limiting plate is located between the adjacent photovoltaic tile and a mounting support connected to the adjacent photovoltaic tile along the first direction.

In an embodiment of the application, the limiting plate has a cavity.

In an embodiment of the present application, the baffle plate has a first protrusion and a first groove adjacent to each other along the gradient direction, and the limiting plate has a second protrusion and a second groove adjacent to each other along the gradient direction, where the second protrusion is disposed opposite to the first protrusion along the first direction.

In an embodiment of the present application, the height of the first protrusion, the depth of the second groove, the height of the second protrusion, and the depth of the first groove are the same.

In an embodiment of the present application, a width of the second groove is equal to or greater than a width of the first protrusion.

In an embodiment of the 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 less than the width of the second protrusion.

In an embodiment of the application, the waterproof pad is disposed between the second frame and the photovoltaic tile overlapped with the second frame along the first direction.

In one embodiment of the application, the device further comprises one or more water bars arranged on the surface of the first frame facing the baffle.

In an embodiment of the present application, the abutment between the support plate and the bottom plate is an inclined surface, and the inclined surface is inclined downward in a direction approaching to the connection plate.

In an embodiment of the present application, the purlin extends along a second direction, and the mounting support is connected to the purlin, wherein the gradient direction intersects the second direction.

In an embodiment of the application, the mounting support further has a side plate, and the side plate is disposed on a surface of the support plate, which is far 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 respectively contacted with two surfaces adjacent to the purline.

In an embodiment of the application, the photovoltaic tile further includes a third frame and a fourth frame, where the third frame and the fourth frame are disposed opposite to each other along the second direction, and the third frame and/or the fourth frame of the photovoltaic tile overlap with the photovoltaic tile adjacent along the second direction.

In an embodiment of the application, a conventional tile is also included, which overlaps the photovoltaic tile in the slope direction and/or overlaps the photovoltaic tile in a second direction.

In an embodiment of the application, the height of the first hook is 10 mm-30 mm, and the height of the second hook is 10 mm-30 mm, wherein the height of the overlapping part of the first hook and the second hook after clamping is equal to or greater than 10mm.

According to the photovoltaic roof, the first frame of the photovoltaic tile is detachably connected with the mounting support, the second frame is lapped on the upper surface of the adjacent photovoltaic tile along the gradient direction, and at least one part of the limiting plate of the second frame is positioned below the baffle of the mounting support. The photovoltaic tile is convenient to detach, the maintenance difficulty of the photovoltaic tile is reduced, and the wind uncovering resistance of the photovoltaic tile is improved.

Drawings

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below, wherein:

FIG. 1A is a schematic perspective view of a building roof without photovoltaic tiles in accordance with an embodiment of the present application;

FIGS. 1B and 1C are schematic perspective views of a photovoltaic roofing according to various embodiments of the present application;

FIG. 1D is a schematic side view of the photovoltaic roofing of FIG. 1B;

FIG. 2A is a schematic perspective view of a photovoltaic tile in accordance with one embodiment of the present application;

FIG. 2B is a schematic top view of the photovoltaic tile of FIG. 2A;

FIG. 2C is a schematic front view of the photovoltaic tile of FIG. 2A;

FIG. 2D is a schematic side view of the photovoltaic tile of FIG. 2A;

FIG. 3A is a schematic perspective view of a mounting bracket according to an embodiment of the present application;

FIG. 3B is a schematic front view of the mounting bracket of FIG. 3A;

FIG. 4A is a schematic illustration of the overlap between photovoltaic tiles in an embodiment of the present application;

FIG. 4B is an enlarged schematic view of the partial structure of FIG. 4A;

FIGS. 4C, 4D and 4E are respectively enlarged partial views of the photovoltaic tile at circle B of FIG. 4A at various stages of the removal process;

FIG. 4F is a schematic view of a baffle limiting the photovoltaic tile to be lifted in accordance with an embodiment of the present application.

Reference numerals

Building roof 10, through-hole 115, third rim 123, mounting support 110, side panel 116, fourth rim 124, first mounting support 110-1, photovoltaic tile 120, first photovoltaic tile 120-1, second mounting support 110-2, first rim 121, second photovoltaic tile 120-2, connecting plate 111, second hook 121a, laminate 130, support panel 112, bottom panel 121b, waterproof pad 140, incline 112a, second rim 122, purlin 150, first hook 113, limit plate 122a, conventional tile 160, baffle 114, second protrusion 122a-1, water-running strip 170, first protrusion 114a, second groove 122a-2, water deflector 180, first groove 114b, cavity 122a-3.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than as described herein, and therefore the present application is not limited to the specific embodiments disclosed below.

As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application. Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the present specification may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present application is understood, not simply by the actual terms used but by the meaning of each term lying within.

The photovoltaic roofing of the present application will be described by way of specific examples.

Fig. 1A is a schematic perspective view of a building roof without photovoltaic tiles in an embodiment, fig. 1B and 1C are schematic perspective views of a photovoltaic roof in a different embodiment, and fig. 1D is a schematic side view of the photovoltaic roof in fig. 1B. Referring to fig. 1A to 1D, the building roof 10 is an inclined slope, and for convenience of description, the inclined direction of the building roof 10 is referred to as a slope direction D3, and a portion of the building roof 10 located at both ends in the slope direction D3 has a height difference in the first direction D1, which is not limited by the present application. A plurality of water-compliant strips 170 and a plurality of purlines 150 are provided on the building roof 10. The water bars 170 are arranged at intervals along the second direction D2, and each water bar 170 extends along the gradient direction D3. The purlins 150 are arranged at intervals along the gradient direction D3, each purlin 150 extends along the second direction D2, and the purlins 150 are disposed on the water line 170.

As shown in fig. 1A, the water strip 170 extends in the direction of slope D3, and the water strip 170 may be used to channel rain water from the building roof 10. Purline 150 extends in a second direction D2 and mounting brackets for securing photovoltaic tiles as well as conventional tiles may be mounted on purline 150, as will be later developed. Wherein, the conventional tile refers to a tile which cannot be used for power generation, such as ceramic tile, cement tile, etc.

The plurality of photovoltaic tiles 120 are laid on the building roof 10 in the second direction D2 and the third direction D3. Referring to fig. 1B, the building roof 10 is not sized to match an integral number of photovoltaic tiles 120 along the slope direction D3, and therefore conventional tiles 160 adjacent to the photovoltaic tiles 120 at the edges are laid in the slope direction D3. Similarly, the dimensions of the building roof 10 in the second direction D2 do not match the whole number of photovoltaic tiles 120, and therefore conventional tiles 160 adjacent to the photovoltaic tiles 120 at the edges are laid in the second direction D2. It should be appreciated that even if the size of the building roof 10 does not match an integral slice of the photovoltaic tiles 120, the conventional tiles 160 may not be laid.

Referring to fig. 1B and 1C in contrast, the photovoltaic tiles 120 in fig. 1B are laid in order in the gradient direction D3, and the photovoltaic tiles 120 in fig. 1C are laid in a staggered manner in the gradient direction D3. The present application is not limited to the manner in which the photovoltaic tiles 120 are laid. The specific manner of laying the photovoltaic tiles 120 may 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 fig. 1B and 1C, where there is a portion of the building roof 10 where the photovoltaic tiles 120 and/or the conventional tiles 160 are not laid, the photovoltaic tiles 120 and/or the conventional tiles 160 covering a specific area may be laid on the building roof 10 as required, not limited to those shown in fig. 1B and 1C.

Fig. 2A is a schematic perspective view of a photovoltaic tile in an embodiment, fig. 2B is a schematic top view of the photovoltaic tile in fig. 2A, fig. 2C is a schematic front view of the photovoltaic tile in fig. 2A, and fig. 2D is a schematic side view of the photovoltaic tile in fig. 2A. For ease of description, the photovoltaic tile 120 is illustrated along the orientation of the photovoltaic tile 120 in fig. 1A and 1B. The photovoltaic tile 120 has opposing first 121 and second 122 rims along the sloping direction D3 and opposing third 123 and fourth 124 rims along the second direction D2. The four sides of the laminate 130 are connected to the corresponding rims, respectively. In some embodiments, the photovoltaic tile 120 may not include the third frame 123 and the fourth frame 124.

As shown in fig. 1A and 1B, the first frame 121 of the photovoltaic tile 120 is connected to the mounting support, and the second frame 122 is overlapped on the photovoltaic tile adjacent in the gradient direction D3 and located below in the first direction D1. The third frame 123 overlaps a fourth frame of one photovoltaic tile adjacent in the second direction D2, and the fourth frame 124 overlaps a third frame of another photovoltaic tile adjacent in the second direction D2.

As shown in fig. 1B and 1D, conventional tile 160 may overlap adjacent photovoltaic tile 120 along grade direction D3. Specifically, the end of the conventional tile 160 distal from the photovoltaic tile 120 along the slope direction D3 is lapped over the purline 150, and the end proximal to the photovoltaic tile 120 is lapped over the adjacent photovoltaic tile 120. The conventional tile 160 may also overlap adjacent the photovoltaic tile 120 in the second direction D2. Specifically, the opposite ends of the conventional tile 160 along the second direction D2 have structures similar to the three frames and the fourth frame of the light Fu Wadi, respectively, so that the conventional tile 160 and the photovoltaic tile 120 can be overlapped by overlapping the adjacent photovoltaic tiles along the second direction D2. The photovoltaic tile can be mixed with the conventional tile and paved on the surface of a building, and the overlapping mode between the photovoltaic tile and the conventional tile is similar to that between the photovoltaic tile, so that the fusion degree of the photovoltaic tile and the conventional tile is improved.

The manner in which the photovoltaic tiles are attached to the roof of the building is described next.

Fig. 3A is a schematic perspective view of the mounting base in one embodiment, and fig. 3B is a schematic front view of the mounting base in fig. 3A. Referring to fig. 3A and 3B, the mounting bracket 110 has a connection 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 supporting plate 112, one end of the first hook 113 and one end of the baffle 114 are all connected with the connecting plate 111, the other end of the supporting plate 112, the other end of the first hook 113 and the other end of the baffle 114 extend along a gradient direction D3 to the same side, and the first hook 113 is disposed between the supporting plate 112 and the baffle 114 in the first direction D1. A first receiving space S1 is formed between the first hook 113 and the baffle 114, and a second receiving space S2 is formed between the first hook 113 and the support plate 112.

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

Fig. 4A is a schematic diagram of overlap between photovoltaic tiles in an embodiment, fig. 4B is an enlarged schematic diagram of a partial structure in fig. 4A, a right view in fig. 4B is an enlarged schematic diagram of a part of a circle a in fig. 4A, and a left view is an enlarged schematic diagram of a part of a circle B. For convenience of description, the photovoltaic tiles overlapped along the gradient direction D3 in fig. 4A are referred to as a first photovoltaic tile 120-1 and a second photovoltaic tile 120-2, respectively, wherein the second photovoltaic tile 120-2 is located below the first photovoltaic tile 120-1 in the first direction D1, the mounting support connected to the first frame 121 in the first photovoltaic tile 120-1 is referred to as a first mounting support 110-1, and the mounting support connected to the first frame 121 in the second photovoltaic tile 120-2 is referred to as a second mounting support 110-2.

Referring to fig. 4A, 4B and 3A, the mounting bracket 110 is connected to purlins 150, and the purlins 150 fix the mounting bracket 110. In one embodiment, the mounting brackets 110 have through holes 115, and screws may be used to attach the mounting brackets 110 to the purlins 150 through the through holes 115. The present application is not limited in the manner of connection between purlin 150 and mounting bracket 110. Referring to fig. 3A and 3B, in some embodiments, the mounting bracket 110 has a side plate 116. The side plate 116 is disposed 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 fig. 4B, the brace 112 and the side panels 116 are respectively attached to the two surfaces adjacent to the purlin 150. The mounting brackets 110 may distribute forces to both surfaces of the purlins 150 via the support plates 112 and the side plates 116, which may be advantageous to avoid buckling of the purlins 150 due to single-sided stress. It should be appreciated that the mounting brackets 110 may also be provided directly on the roof of the building, and that the purlins 150 are not required. In addition, when the purline 150 is difficult to provide enough torque in a heavy-load scenario, the side panels 116 may be designed to extend into contact with the roof of the building, providing additional support and torsion resistance, reducing the buckling resistance and torsion resistance requirements for the purline 150, and saving costs.

The relationship of the first and second rims of the photovoltaic tiles to the mounting support is described in connection with fig. 2D, 3B and 4B. For convenience of description, the first photovoltaic tile 120-1 is illustrated.

The second clamping hook 121a in the first frame 121 of the first photovoltaic tile 120-1 is clamped with the first clamping hook 113 of the first mounting support 110-1, and the bottom plate 121b of the first frame 121 is abutted with the supporting plate 112 of the first mounting support 110-1. As shown in the enlarged right side of fig. 4B, the first hook of the first mounting support 110-1 provides the first frame 121 with a pulling force along the gradient direction D3, so as to prevent the first photovoltaic tile 120-1 from sliding due to external force such as gravity. The support plate 112 of the first mounting bracket 110-1 provides a supporting force for the first frame 121. In some embodiments, the height of the first hook 113 is 10mm to 30mm, for example, 10mm, 15mm, 20mm, 25mm or 30mm; the height of the second hook 121a is 10mm to 30mm, for example, 10mm, 15mm, 20mm, 25mm or 30mm. When the first hook 113 and the second hook 121a are clamped, the height of the overlapping portion between the two hooks is equal to or greater than 10mm, for example 15mm, 20mm, 25mm or 30mm, so that the reliability of connection between the photovoltaic tile and the mounting support can be improved.

As shown in fig. 3A and 3B, in an embodiment, the abutment of the supporting plate 112 and the bottom plate is an inclined surface 112a. The inclined surface 112a is inclined downward in a direction approaching the connection plate 111, or a portion of the inclined surface 112a away from the connection plate 111 in the gradient direction D3 is higher than a portion approaching the connection plate 111 in the first direction D1. As shown in fig. 2D and fig. 4B, if the inclined surface 112a is not provided at the contact position between the support plate 112 and the bottom plate 121B, the first frame 121 is in line contact with the support plate 112, and after the inclined surface 112a is provided, the support plate 112 is in surface contact with the first frame 121, which improves the stability of the first frame 121.

As shown in the enlarged view of the left side of fig. 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 the same as the connection between the first photovoltaic tile 120-1 and the first mounting support 110-1, and will not be described further herein.

Referring to fig. 2D, in one embodiment, the photovoltaic roofing further includes a waterproof pad 140. As shown in connection with fig. 4B, the waterproof pad 140 is disposed between the second border 122 of the first photovoltaic tile 120-1 and the second photovoltaic tile 120-2 along the first direction D1. The waterproof pad 140 can prevent rainwater from entering the space under the photovoltaic tiles 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 may be made of a material (e.g., rubber) having a certain elasticity, so that it can be closely attached to the frame and the photovoltaic tile, thereby having a good sealing effect.

With continued reference to FIG. 2D, in one embodiment, the photovoltaic roofing further includes water bars 180. Referring to fig. 3B and 4B in combination, the water bar 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 connection plate 111 in the gradient direction D3. When the first photovoltaic tile 120-1 is lifted by wind, a gap is generated between the waterproof pad 140 and the second photovoltaic tile 120-2, there is a risk that rainwater flows back into the lower part of the photovoltaic tile through the gap, and the water blocking strip 180 is arranged on the backward flow path of the rainwater so as to block the rainwater from entering the lower part of the photovoltaic tile.

Referring to fig. 2D, the second frame 122 has a limiting plate 122a. The limiting plate 122a is connected with the side edge of the cavity 122b and extends towards the laminated piece 130 along the gradient direction D3, or the extending direction of the limiting plate 122a is the same as the extending direction of the second clamping hook 121a in the first frame 121 belonging to the same photovoltaic tile; the retainer plate 122a is connected to a portion of the cavity 122b distal from the laminate 130 in the first direction D1. As shown in fig. 2D, the limiting plate 122a is a hollow structure, which is beneficial to reducing the manufacturing cost of the second frame 122.

As shown in connection with fig. 2D, 3B, and 4B, the first photovoltaic tile 120-1 is adjacent to the second photovoltaic tile 120-2 in the grade direction D3, as previously described. At least a portion of the retainer plate 122a of the second frame 122 of the first photovoltaic tile 120-1 is positioned below the baffle 114 in the second mounting bracket 110-2. Alternatively, at least a portion of the limiting plate 122a is positioned between the second photovoltaic tile 120-2 and the second mounting support 110-2 along the first direction D1.

As shown in the enlarged view of circle B in fig. 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 belonging to 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. When the first photovoltaic tile 120-1 is lifted by wind power, the baffle 114 above the limiting plate 122a can limit the first photovoltaic tile 120-1 to be lifted, as shown in fig. 4F, after the first photovoltaic tile 120-1 is lifted by a certain distance, the limiting plate 122a contacts with the baffle 114, and the baffle 114 can prevent the limiting plate 122a from moving upwards, so as to limit the first photovoltaic tile 120-1 to be lifted.

As shown in fig. 4B, the stopper plate 122a is not in contact with the baffle 144, and a gap S3 is formed therebetween in the first direction D1. The gap S3 allows the first photovoltaic tile 120-1 to be lifted a distance, but the baffle 114 above the spacing plate 122a in the first direction D1 limits the first photovoltaic tile 120-1 from being lifted further.

Referring to fig. 3B, in one embodiment, the baffle 114 of the mounting bracket 110 has a first protrusion 114a and a first recess 114B adjacent in the sloped direction D3. The first protrusion 114a is disposed at an end of the baffle 114 away from the connecting plate 111 along the gradient direction D3, the first groove 114b is located between the first protrusion 114a and the connecting plate 111 along the gradient direction D3, and an opening of the first groove 114b faces the support plate 112.

Referring to fig. 2D, 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 in the gradient direction D3. The second protrusion 122a-1 is disposed at an end of the limiting plate 122a away from the cavity 122b along the gradient direction D3, the second groove 122a-2 is located between the second protrusion 122a-1 and the cavity 122b along the gradient direction D3, and an opening of the second groove 122a-2 faces the lamination member 130. As shown in fig. 2D, in some embodiments, the limiting plate 122a has a cavity 122a-3, in other words, the limiting plate 122a is hollow. Cavity 122a-3 is adjacent to cavity 122b and extends in a third direction D3. The cavity 122a-3 facilitates reducing a material consumption of the second frame 122 and facilitates manufacturing of the second frame 122. It should be understood that the limiting plate 122a may also be a plate-like structure, i.e., the limiting plate 122a of a hollow structure is designed as a solid structure.

As shown in fig. 2D, 3B and 4B, the second protrusion 122a-1 is disposed opposite to the first protrusion 114a in the first direction D1, the second protrusion 122a-1 is located below the first protrusion 114a, and the first protrusion 114a and the second protrusion 122a-1 protrude toward each other, that is, the protruding directions of the two protrusions are opposite. After the first photovoltaic tile 120-1 is lifted, the second protrusion 122a-1 contacts the first protrusion 114a, and the first protrusion 114a can restrict the first photovoltaic tile 120-1 from being lifted further. In some embodiments, to ensure that the first protrusion 114a reliably restricts further lifting of the first photovoltaic tile 120-1 after the first photovoltaic tile 120-1 is lifted, the width of the first protrusion 114a is greater than the width of the second protrusion 122a-1, and/or the width of the first protrusion 114a is less than the width of the second protrusion 122 a-1. As follows, even in the case of an installation error, the first protrusion 114a can still contact the second protrusion 122a-1 after the first photovoltaic tile 120-1 is lifted due to the larger projected area of the first protrusion 114a and/or the second protrusion 122a-1 along the first direction D1. Of course, in other embodiments, the width of the first protrusion 114a may be equal to the width of the second protrusion 122 a-1.

The designs described above with respect to the first protrusion 114a, the second protrusion 122a-1, the first recess 114b, and the second recess 122a-2 facilitate replacement and repair of the photovoltaic tile, as will be described below.

Fig. 4C, 4D and 4E are respectively enlarged partial views of the photovoltaic tile at circle B of fig. 4A at different stages of the removal process. Referring to fig. 4B and 4C for this, and in combination with fig. 2D and 3B, the process of removing the second photovoltaic tile 120-2 is as follows:

the first photovoltaic tile 120-1 is moved toward the first mounting support 110-1 along the sloped direction D3 while the second rim 122 of the first photovoltaic tile 120-1 is lifted in the first direction D1 such that the first protrusion 114a and the second protrusion 122a-1 enter the second groove 122a-2 and the first groove 114b, respectively. In this manner, a gap S4 is formed between the waterproof pad 140 and the top surface of the second photovoltaic tile 120-2. As shown in connection with fig. 2D and 3B, to enable 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.

Referring to fig. 4C and 4D, after the gap S4 is formed, the first frame 121 of the second photovoltaic tile 120-2 is lifted up in the first direction D1, and the first frame 121 is moved away from the second mounting support 110-2 in the slope direction D3, so that the first hook 113 is separated from the second hook 121 a.

Referring to fig. 4D and 4E, after the first hook 113 is separated from the second hook 121a, the second photovoltaic tile 120-2 is separated from the second mounting bracket 110-2 along the slope direction D3. In this way, the disassembly process of the second photovoltaic tile 120-2 is completed.

As can be seen from the above description of the process of disassembling the second photovoltaic tile 120-2, no additional tool is required in the disassembly process, and the second frame of the first photovoltaic tile 120-1 is lifted up to remove the second photovoltaic tile 120-2 from the lower side of the first photovoltaic tile 120-1, so that the efficiency of disassembling the photovoltaic tile is improved, and the maintenance difficulty of the photovoltaic tile is reduced.

Referring to fig. 4C and 4D, the gap S4 should have a dimension in the first direction D1 that meets the minimum dimension that the second photovoltaic tile 120-2 is drawn from under the first photovoltaic tile 120-1. Referring to fig. 2D, in an embodiment, the height of the second protrusion 122a-1 along the first direction D1 is H1, and correspondingly, the depth of the second groove 122a-2 along the first direction D1 is H1. Referring to fig. 3B, the height of the first protrusion 114a in the direction perpendicular to the baffle 114 is H2, and correspondingly, the depth of the first groove 114B is also H2, and H1 is the same as H2. Referring to fig. 4C, as such, the first protrusion 114a and the second protrusion 122a-1 may contact the bottom surface of the corresponding groove after entering the second groove 122a-2 and the first groove 114b, respectively, which is advantageous in expanding the size of the gap S4 in the first direction D1 with the same distance between the baffle 114 and the second photovoltaic tile 120-2 in the first direction D1.

In the above embodiment of the present application, the first frame of the photovoltaic tile is detachably connected to the mounting support, the second frame is lapped on the upper surface of the adjacent photovoltaic tile along the gradient direction, and at least a part of the limiting plate of the second frame is located below the baffle of the mounting support. The photovoltaic tile is convenient to detach, and the anti-wind uncovering capability of the photovoltaic tile is improved.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing application disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the application may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within the present disclosure, and therefore, such modifications, improvements, and adaptations are intended to be within the spirit and scope of the exemplary embodiments of the present disclosure.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.

In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations in some embodiments for use in determining the breadth of the range, in particular embodiments, the numerical values set forth herein are as precisely as possible.

Claims

1. A photovoltaic roofing, comprising:

the mounting support is provided with a connecting plate, a supporting plate, a first clamping hook and a baffle, one end of the supporting plate, one end of the first clamping hook and one end of the baffle are connected with the connecting plate, the other end of the supporting plate extends to the same side along the gradient direction of the photovoltaic roof, and the first clamping hook is arranged between the supporting plate and the baffle; and

the photovoltaic tile has along the relative first frame of slope direction and second frame, first frame has the back the second pothook that the photovoltaic tile laminate extends, the second pothook with first pothook joint, the bottom plate of first frame with the backup pad butt, the overlap joint of second frame is on adjacent photovoltaic tile, wherein, the second frame has the limiting plate, the extending direction of limiting plate with the extending direction of second pothook is the same, at least part the limiting plate is located along first direction between adjacent photovoltaic tile and the erection support that adjacent photovoltaic tile is connected, the baffle has along first arch and the first recess that the slope direction is adjacent, the limiting plate has along the adjacent second arch of slope direction and second recess, the second arch along first direction with first arch sets up relatively, and be in the interval has the clearance in the first direction.

2. The photovoltaic roofing of claim 1, wherein the retainer plate has a cavity.

3. The photovoltaic roofing of claim 1, wherein the height of the first protrusion, the depth of the second groove, the height of the second protrusion, and the depth of the first groove are the same.

4. The photovoltaic roofing of claim 1, wherein the width of the second groove is equal to or greater than the width of the first protrusion.

5. The photovoltaic roofing of claim 1, wherein 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 less than the width of the second protrusion.

6. The photovoltaic roofing of claim 1, further comprising a waterproof pad disposed between the second frame and the photovoltaic tiles overlapped therewith along a first direction.

7. The photovoltaic roofing of claim 1, further comprising one or more water bars disposed on a surface of the first frame facing the baffle.

8. The photovoltaic roofing of claim 1, wherein the support plate is inclined at an abutment with the bottom plate, the inclined surface being inclined downwardly in a direction approaching the connection plate.

9. The photovoltaic roofing of claim 1, further comprising a purline extending in a second direction, the mounting bracket coupled to the purline, wherein the grade direction intersects the second direction.

10. The photovoltaic roofing of claim 9, wherein the mounting bracket further has a side plate disposed on a surface of the support plate that is remote from the baffle in a first direction and extends away from the baffle in the first direction, wherein the support plate and the side plate are in contact with two surfaces of the purlin adjacent thereto, respectively.

11. The photovoltaic roofing of claim 1, wherein the photovoltaic tile further comprises a third frame and a fourth frame, the third frame and the fourth frame being disposed opposite in a second direction, wherein the third frame and/or the fourth frame of the photovoltaic tile overlap photovoltaic tiles adjacent in the second direction.

12. The photovoltaic roofing of claim 1, further comprising a conventional tile that overlaps the photovoltaic tile in the sloped direction and/or overlaps the photovoltaic tile in a second direction.

13. The photovoltaic roof according to claim 1, wherein the height of the first hook is 10 mm-30 mm, and the height of the second hook is 10 mm-30 mm, and the height of the overlapping portion of the first hook and the second hook after clamping is equal to or greater than 10mm.