Photovoltaic roof system

Abstract

The photovoltaic roof system comprises an installation frame, the installation frame is provided with a frame part and a first installation part, the frame part is located above the first installation part in the first direction, and the frame part can support a photovoltaic panel; the pressing plate is provided with a second mounting part and a main body section, the main body section is connected to the base used for bearing the mounting frame, and the second mounting part is bent and extends from the main body section to the first mounting part of the mounting frame, so that the second mounting part is buckled with the first mounting part, and the first mounting part is prevented from being separated from the second mounting part along a second direction; therefore, the connection between the mounting frame and the pressing plate is firmer, and the wind uplift resistance of the photovoltaic roof system is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building integrated photovoltaics, and particularly relates to a photovoltaic roof system. BACKGROUND

[0002] Building integrated photovoltaics (BIPV) uses photovoltaic components as building components or building materials, so that the photovoltaic components become part of the building and have the function of generating electricity. BIPV can avoid occupying too much land resources, which is particularly important for urban buildings where land is expensive. BIPV converts solar energy into electricity, which can reduce the overall outdoor temperature, and can also play a peak-shaving role for the power grid, thereby achieving the effect of building energy saving.

[0003] In the related art, photovoltaic panels are installed on the roof by using a guide rail support, which has the following defects: the wind lifting resistance is weak, and the photovoltaic panels are not convenient to replace individually during later maintenance. SUMMARY

[0004] One or more embodiments of the present application provide a photovoltaic roof system to solve or at least partially alleviate the problem of weak wind lifting resistance in the related art.

[0005] One or more embodiments of the present application provide a photovoltaic roof system, which adopts the following technical solution:

[0006] A photovoltaic roof system includes a mounting frame, the mounting frame is provided with a frame portion and a first mounting portion, the frame portion is located above the first mounting portion along a first direction, and the frame portion supports a photovoltaic panel; a pressing plate is provided with a second mounting portion and a main body segment, the main body segment is connected to a base for carrying the mounting frame, and the second mounting portion is bent and extended from the main body segment to the first mounting portion of the mounting frame, so that the second mounting portion is engaged with the first mounting portion.

[0007] In some embodiments, the first mounting portion is provided with a first mounting groove, the opening direction of the frame portion and the opening direction of the first mounting groove are opposite, and the second mounting portion of the pressing plate is bent and engaged in the first mounting groove.

[0008] In some embodiments, the mounting frame further comprises a frame portion connected between the bezel portion and the first mounting portion to support the bezel portion above the first mounting portion in the first direction; the bezel portion is bent to extend from an upper end of the frame portion in the first direction to define a receiving cavity between the bezel portion and the frame portion, the receiving cavity has an opening facing the photovoltaic panel in the second direction to support an edge of the photovoltaic panel; the first mounting portion is bent to extend from a lower end of the frame portion in the first direction to have a distal end of the first mounting portion extending upwardly in the first direction, the first mounting slot is defined between the bezel portion and the first mounting portion, the first mounting slot has an opening facing away from the photovoltaic panel in the second direction to receive the second mounting portion of the press plate such that the first mounting portion is engaged with the second mounting portion.

[0009] In some embodiments, the first mounting portion has a side wall opposite to the opening of the first mounting slot in the second direction, the side wall is provided with a fixing hole penetrating through the side wall in the second direction to be adapted for a first fastener to pass through, under the condition that the press plate is mounted to the mounting frame, the first fastener is pressed against the second mounting portion of the press plate.

[0010] In some embodiments, the press plate further comprises a support segment bent to extend from one end of the main body segment in a direction away from the substrate, under the condition that the press plate is mounted to the substrate, the support segment abuts against the substrate to have the main body segment spaced apart from the substrate in the first direction; the second mounting portion is bent to extend from another end of the main body segment, under the condition that the press plate is mounted to the mounting frame, the second mounting portion is received in the first mounting slot, and at least a portion of the second mounting portion is overlapped with at least a portion of the first mounting portion in the second direction.

[0011] In some embodiments, the press plate further comprises a support segment bent to extend from one end of the main body segment in a direction away from the substrate, the second mounting portion is bent to extend from the support segment to have a distal end of the second mounting portion extending downwardly in the first direction, under the condition that the press plate is mounted to the mounting frame, the second mounting portion is received in the first mounting slot, and at least a portion of the second mounting portion is overlapped with at least a portion of the first mounting portion in the second direction.

[0012] In some embodiments, the second mounting portion of the pressing plate is bent from the main body segment to define a second mounting groove between the second mounting portion and the main body segment; the mounting frame further comprises a frame portion connected between the frame portion and the first mounting portion to support the frame portion above the first mounting portion in the first direction; the frame portion is bent from the upper end of the frame portion in the first direction to define a receiving cavity between the frame portion and the frame portion, the opening of the receiving cavity faces the photovoltaic panel in the second direction to support the edge of the photovoltaic panel; the first mounting portion is connected to the lower end of the frame portion in the first direction, and the first mounting portion extends to the side where the photovoltaic panel is located in the second direction to be accommodated in the second mounting groove, so that the second mounting portion is engaged with the first mounting portion.

[0013] In some embodiments, the pressing plate further comprises at least one of a limiting segment and a protruding structure, the limiting segment protrudes from the surface of the second mounting portion away from the main body segment, so that at least part of the second fastener is accommodated between two adjacent limiting segments; the protruding structure protrudes from the surface of the second mounting portion towards the main body segment to press against the first mounting portion of the mounting frame.

[0014] In some embodiments, the photovoltaic system further comprises a sealant and a sealing member, the sealing member is clamped between two adjacent mounting frames, the sealant is filled between two adjacent mounting frames, and the sealant is arranged above the sealing member in the first direction to cover the sealing member.

[0015] In some embodiments, the photovoltaic roof system further comprises a connecting assembly, the connecting assembly comprises a fixing member, a bearing member and a purlin, the fixing member is embedded in the installation position, the bearing member is movably connected to the fixing member in the first direction, the bearing member is fixedly connected to the purlin, so that the purlin can be adjustably installed in the installation position in the first direction, and the purlin is used to bear the mounting frame and the pressing plate.

[0016] Compared with the related art, one or more embodiments of the present application include at least one of the following beneficial technical effects:

[0017] (1) The photovoltaic panel is connected to the mounting frame, the mounting frame is fixedly connected to the purlin through the pressing plate, and then the photovoltaic panel is installed on the purlin. Further, the first mounting portion of the mounting frame is engaged with the second mounting portion of the pressing plate, which is beneficial to prevent the first mounting portion from being separated from the second mounting portion in the second direction, so that the connection between the mounting frame and the pressing plate is more firm, and the wind resistance of the photovoltaic roof system is improved.

[0018] (2) Each photovoltaic panel is connected with the purline through the pressing plate, and the photovoltaic panel is separated from the purline by disassembling the pressing plate, so that the photovoltaic panel is individually disassembled and replaced in the later period, the pressing plate can be reused, and the operation and maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only relate to some embodiments of the present application and are not a limitation on the present application.

[0020] Figure 1 A schematic view of a mounting frame connected to a purline according to some embodiments of the present application.

[0021] Figure 2 A schematic view of a side of a mounting frame according to some embodiments of the present application.

[0022] Figure 3 A schematic view of a front of a mounting frame according to some embodiments of the present application.

[0023] Figure 4 A schematic view of a pressing plate according to some embodiments of the present application.

[0024] Figure 5 A schematic view of a pressing plate according to some embodiments of the present application.

[0025] Figure 6 A schematic view of a mounting frame connected to a purline according to some other embodiments of the present application.

[0026] Figure 7 A schematic view of a pressing plate according to some other embodiments of the present application.

[0027] Figure 8 A schematic view of a mounting frame connected to a purline according to some other embodiments of the present application.

[0028] Figure 9 A schematic view of a pressing plate according to some other embodiments of the present application.

[0029] Figure 10 A schematic view of a mounting frame connected to a purline according to some other embodiments of the present application.

[0030] Figure 11 A schematic view of a pressing plate according to some other embodiments of the present application.

[0031] Figure 12 A schematic view of a mounting frame connected to a purline according to some other embodiments of the present application.

[0032] Figure 13Schematic view of a connection assembly according to some embodiments of the present application.

[0033] Figure 14 Schematic view of a photovoltaic roofing system according to some embodiments of the present application.

[0034] Figure 15 Schematic view of Figure 14 Enlarged view of section A in the figure.

[0035] Figure 16 Schematic view of a tile according to some embodiments of the present application.

[0036] Figure 17 Schematic view of Figure 16 Enlarged view of section B in the figure.

[0037] In the figure: 10, connection assembly; 11, fixing member; 12, gasket; 13, filler; 14, load bearing member; 15, levelling nut; 20, purlin; 30, mounting frame; 31, first mounting portion; 311, first mounting slot; 312, side wall; 3121, fixing hole; 32, border portion; 321, accommodating cavity; 33, frame portion; 40, pressing plate; 41, second mounting portion; 411, limiting section; 412, protruding structure; 42, main body section; 421, through hole; 43, support section; 44, second mounting slot; 51, photovoltaic panel; 52, tile; 521, top portion; 522, side portion; 523, bottom portion; 60, reinforcing member; 71, sealant; 72, sealing member; 80, corrosion-proof member; 91, architectural base; 92, thermal insulation layer; 101, first fastening member; 102, second fastening member. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings which show embodiments according to the present application. It should be understood that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort, shall fall within the scope of protection of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise", "comprises", "comprising", "include", "includes", "including", "have", "has", "having", or the like are meant to be open-ended and non-limiting; a method or apparatus that "comprises", "comprises", "comprising", "includes", "includes", "including", "have", "has", "having" one or more steps or elements does not exclude additional steps or elements.

[0040] The terms "first", "second", and the like, as used in the description and the claims of this application, are used for distinguishing between similar elements and not necessarily for describing a specific sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the descriptive terms "first", "second", etc., are to be interpreted, by those skilled in the art, as a specific distinction in function rather than order or sequence. As such, the term "first" preceded by "step" or "means" followed by "second" does not describe a time sequence but, instead, describes a hierarchical relationship between steps or means.

[0041] In the description of the application, it is to be understood that the orientation or positional relationship indicated by terms such as "central", "lateral", "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like is based on the orientation or positional relationship shown in the drawings, and is merely intended to facilitate the description of the application and simplify the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0042] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0043] Figure 1 A schematic view of a photovoltaic roofing system according to some embodiments of the application.

[0044] One or more embodiments of the application disclose a photovoltaic roofing system. Referring to Figure 1The photovoltaic roof system comprises a mounting frame 30 and a pressing plate 40. The mounting frame 30 is provided with a first mounting portion 31 and a frame portion 32. The frame portion 32 is above the first mounting portion 31 along a first direction, and the frame portion 32 supports a photovoltaic panel 51. The pressing plate 40 is provided with a second mounting portion 41 and a main body portion 42. The main body portion 42 is connected to a base for bearing the mounting frame 30. The second mounting portion 41 is bent and extends from the main body portion 42 to the first mounting portion 31 of the mounting frame 30, so that the second mounting portion 41 is engaged with the first mounting portion 31.

[0045] It can be understood that the photovoltaic panel 51 is connected to the mounting frame 30, the mounting frame 30 is fixed to the base through the pressing plate 40, and then the photovoltaic panel 51 is mounted on the base. Further, the first mounting portion 31 of the mounting frame 30 is engaged with the second mounting portion 41 of the pressing plate 40, which is beneficial to prevent the first mounting portion 31 from being separated from the second mounting portion 41 along the second direction, so that the connection between the mounting frame 30 and the pressing plate 40 is more firm, and the wind resistance of the photovoltaic roof system is improved. Furthermore, each photovoltaic panel 51 is connected to the base through the pressing plate 40, so that the photovoltaic panel 51 can be separated from the base by disassembling the pressing plate 40, so as to facilitate the later separate disassembly and replacement of the photovoltaic panel 51, and the pressing plate 40 can be reused, which is beneficial to reduce the operation and maintenance cost. In addition, the photovoltaic panel 51 can adopt the existing standard, that is, the production and installation of the photovoltaic roof system can be realized without changing the existing production mode of the photovoltaic panel, which is beneficial to reduce the cost.

[0046] It is worth mentioning that the base includes but is not limited to a purlin 20, a metal tile, a roof and a wall of a building.

[0047] In some embodiments, referring to Figures 1 to 3 The first mounting portion 31 is provided with a first mounting groove 311. The opening direction of the frame portion 32 and the opening direction of the first mounting groove 311 are opposite. The second mounting portion 41 of the pressing plate 40 is bent and engaged in the first mounting groove 311 of the first mounting portion 31. That is, the first mounting groove 311 is used to accommodate the second mounting portion 41 of the pressing plate 40, so that the second mounting portion 41 is engaged with the first mounting portion 31.

[0048] It can be understood that the frame portion 32 is used to support the photovoltaic panel 51, and the first mounting groove 311 is used to connect the pressing plate 40. The opening direction of the frame portion 32 and the opening direction of the first mounting groove 311 are opposite. Under the condition that the photovoltaic panel 51 and the pressing plate 40 are connected to the mounting frame 30, the photovoltaic panel 51 and the pressing plate 40 are located on both sides of the mounting frame 30 along the second direction, which is beneficial to avoid that the photovoltaic panel 51 shields the pressing plate 40 along the first direction, so as to facilitate the installation and disassembly of the pressing plate 40 and improve the construction efficiency.

[0049] In some embodiments, referring to Figure 2and Figure 3 The mounting frame 30 further comprises a frame portion 33 connected between the frame portion 32 and the first mounting portion 31, so as to support the frame portion 32 to be above the first mounting portion 31 along the first direction. Specifically, the frame portion 32 is bent and extended from the upper end of the frame portion 33 along the first direction, so as to define a receiving cavity 321 between the frame portion 32 and the frame portion 33, the opening of the receiving cavity 321 faces the photovoltaic panel 51 along the second direction, so as to support the edge of the photovoltaic panel 51. It can be understood that, under the condition that the edge of the photovoltaic panel 51 is accommodated in the receiving cavity 321, the top surface of the frame portion 33 supports the back surface of the photovoltaic panel 51, and the frame portion 32 is bent and extended to the front surface of the photovoltaic panel 51, so as to clampingly wrap the edge of the photovoltaic panel 51. In addition, the receiving cavity 321 can be filled with an adhesive, so as to improve the connection strength between the mounting frame 30 and the photovoltaic panel 51, and further improve the wind resistance of the photovoltaic roof system.

[0050] Further, referring to Figure 2 The first mounting portion 31 is bent and extended from the lower end of the frame portion 33 along the first direction, so that the end of the first mounting portion 31 extends upward along the first direction, and the first mounting slot 311 is defined between the frame portion 32 and the first mounting portion 31, the opening of the first mounting slot 311 faces away from the photovoltaic panel 51 along the second direction, so as to accommodate the second mounting portion 41 of the pressing plate 40, so that the first mounting portion 31 is engaged with the second mounting portion 41. It can be understood that, referring to Figure 1 The end of the first mounting portion 31 extends upward along the first direction, so that the size of the opening of the first mounting slot 311 along the first direction is smaller than the size of the main body of the first mounting slot 311 along the first direction, and further, under the condition that the pressing plate 40 is connected to the mounting frame 30, the first mounting portion 31 is engaged with the second mounting portion 41. That is, the end of the second mounting portion 41 and the end of the first mounting portion 31 are stacked along the second direction, which is beneficial to prevent the second mounting portion 41 from being separated from the first mounting portion 31 along the second direction, so that the connection between the pressing plate 40 and the mounting frame 30 is more reliable.

[0051] In some embodiments, referring to Figures 1 to 3The first mounting portion 31 has a side wall 312 opposite to the opening of the first mounting groove 311 along the second direction, and the side wall 312 is provided with a fixing hole 3121 penetrating through the side wall 312 along the second direction, so as to be suitable for the first fastener 101 to pass through, and under the condition that the pressing plate 40 is mounted on the mounting frame 30, the first fastener 101 is pressed against the second mounting portion 41 of the pressing plate 40. It can be understood that under the condition that the second mounting portion 41 is accommodated in the first mounting groove 311, the second mounting portion 41 can slide along the extension direction of the mounting frame 30, and there can be a gap in the first mounting groove 311, causing the second mounting portion 41 to move along the first direction or the second direction in the first mounting groove 311. In the embodiment, the second mounting portion 41 is fixed in the first mounting groove 311 by the pressing effect of the first fastener 101, which is beneficial to avoid the movement of the second mounting portion 41 relative to the first mounting portion 31, and further improve the connection strength and connection reliability of the pressing plate 40 and the mounting frame 30. The first fastener 101 can be implemented as a self-tapping screw.

[0052] In at least one embodiment, referring to Figure 3 , two fixing holes 3121 are arranged at intervals along the extension direction of the mounting frame 30, and the fixing holes 3121 are asymmetrically arranged relative to the center line of the mounting frame 30. That is, the distance from the left fixing hole 3121 to the left end of the mounting frame 30 is L1, and the distance from the right fixing hole 3121 to the right end of the mounting frame 30 is L2, satisfying: L1≠L2. It can be understood that under the condition that the two adjacent mounting frames 30 are symmetrically mounted on the base, that is, the opening directions of the first mounting grooves 311 of the two adjacent mounting frames 30 are opposite, the fixing holes 3121 of the two mounting frames 30 are arranged in a staggered manner, and the pressing plates 40 aligned with the respective fixing holes 3121 are arranged in a staggered manner, which is beneficial to avoid the problem of interference between the respective pressing plates 40 in the process of installing the photovoltaic roof system.

[0053] In some embodiments, referring to Figure 1 , Figure 4 and Figure 5 , the pressing plate 40 further comprises a support section 43, which is bent and extends from one end of the main body section 42 towards the base, and under the condition that the pressing plate 40 is mounted on the base, the support section 43 abuts against the base, so that the main body section 42 is arranged at intervals with the base along the first direction. The second mounting portion 41 is bent and extends from the other end of the main body section 42, and under the condition that the pressing plate 40 is mounted on the mounting frame 30, the second mounting portion 41 is accommodated in the first mounting groove 311, and at least part of the second mounting portion 41 is overlapped with at least part of the first mounting portion 31 along the second direction, which is beneficial to prevent the first mounting portion 31 from being separated from the second mounting portion 41 along the second direction.

[0054] Further, the main segment 42 of the pressing plate 40 is provided with a through hole 421 penetrating along the first direction, so as to be suitable for the fastener to pass through, and then under the condition that the pressing plate 40 is installed on the base, the fastener is fixedly connected with the pressing plate 40 and the base. It can be understood that the fastener can provide a force along the first direction to the main segment 42 of the pressing plate 40 towards the base, and then the support segment 43 and the second mounting portion 41 located at both ends of the main segment 42 are respectively abutted with the base and the first mounting portion 31, which is beneficial to improve the connection strength and the connection reliability between the mounting frame 30, the pressing plate 40 and the base. The fastener can be implemented as a self-tapping screw.

[0055] In other embodiments, referring to Figure 6 and Figure 7 , the support segment 43 is bent and extends from one end of the main segment 42 away from the base, and the second mounting portion 41 is bent and turned from the support segment 43, so that the end of the second mounting portion 41 extends downward along the first direction, and under the condition that the pressing plate 40 is installed on the mounting frame 30, the second mounting portion 41 is accommodated in the first mounting groove 311, and at least part of the second mounting portion 41 is overlapped with at least part of the first mounting portion 31 along the second direction, which is beneficial to prevent the first mounting portion 31 from being separated from the second mounting portion 41 along the second direction. It can be understood that the end of the second mounting portion 41 is accommodated in the first mounting groove 311, and the end of the first mounting portion 31 is accommodated between the support segment 43 and the bent and turned second mounting portion 41, so that the connection between the first mounting portion 31 and the second mounting portion 41 is more firm, and then the connection reliability between the mounting frame 30 and the pressing plate 40 is improved, and the wind lifting resistance of the photovoltaic roofing system is improved. Further, the main segment 42 of the pressing plate 40 is provided with a hole penetrating along the first direction, so as to be suitable for the fastener to pass through, and then under the condition that the pressing plate 40 is installed on the base, the fastener is fixedly connected with the pressing plate 40 and the base.

[0056] In other embodiments, referring to Figures 8 to 11 , the second mounting portion 41 of the pressing plate 40 is bent and turned from the main segment 42, so as to define a second mounting groove 44 between the second mounting portion 41 and the main segment 42. The first mounting portion 31 of the mounting frame 30 is connected to the lower end of the frame portion 33 along the first direction, and the first mounting portion 31 extends along the second direction towards the side where the photovoltaic panel 51 is located, so as to be accommodated in the second mounting groove 44, and the second mounting portion 41 is engaged with the first mounting portion 31. That is, the second mounting groove 44 of the pressing plate 40 is used to accommodate the first mounting portion 31 of the mounting frame 30, and then the first mounting portion 31 is engaged with the second mounting portion 41, so as to improve the connection reliability between the mounting frame 30 and the pressing plate 40, and then the wind lifting resistance of the photovoltaic roofing system is improved.

[0057] In at least one embodiment, referring to Figure 9The second mounting portion 41 is bent to extend towards the second direction, and the opening direction of the second mounting groove 44 at the two ends of the pressing plate 40 is opposite. It can be understood that the two second mounting grooves 44 on the pressing plate 40 are buckled with the first mounting portion 31 of the adjacent two mounting frames 30, that is, one pressing plate 40 is connected to the adjacent two photovoltaic panels 51, which is conducive to reducing the number of parts.

[0058] In at least one embodiment, referring to Figure 11 One end of the main body section 42 of the pressing plate 40 is connected with the second mounting portion 41, that is, one pressing plate 40 is connected to one photovoltaic panel 51, which is conducive to adjusting the position of each photovoltaic panel 51 and each pressing plate 40 individually, and improving the flexibility of the photovoltaic roof system installation. Further, referring to Figure 12 As described above, the fixing holes 3121 of the two mounting frames 30 are arranged in a staggered manner, so that the pressing plate 40 aligned with each fixing hole 3121 is arranged in a staggered manner, which is conducive to avoiding the problem of interference between each pressing plate 40 during installation of the photovoltaic roof system.

[0059] In some embodiments, referring to Figure 9 and Figure 11 The pressing plate 40 further comprises at least one of a limiting section 411 and a protruding structure 412. The limiting section 411 protrudes from the surface of the second mounting portion 41 away from the main body section 42, so that at least part of the second fastener 102 is accommodated between the adjacent two limiting sections 411, so as to reduce the risk of loosening of the second fastener 102 under external force. The protruding structure 412 protrudes from the surface of the second mounting portion 41 towards the main body section 42, so as to abut against the first mounting portion 31 of the mounting frame 30, so as to improve the clamping force of the second mounting portion 41 and the main body section 42 on the first mounting portion 31, which is conducive to avoiding the first mounting portion 31 from being separated from the second mounting portion 41 along the second direction, thereby improving the connection reliability of the pressing plate 40 and the mounting frame 30.

[0060] In at least one embodiment, referring to Figure 9 and Figure 10The second mounting portion 41 and the main body section 42 of the pressing plate 40 and the first mounting portion 31 of the mounting frame 30 are respectively provided with a connecting hole. Under the condition that the pressing plate 40 is connected to the mounting frame 30, the connecting hole on the second mounting portion 41, the connecting hole on the first mounting portion 31 and the connecting hole on the main body section 42 are sequentially arranged opposite to each other along the first direction to be suitable for the second fastener 102 to pass through, so as to be fixedly connected to the pressing plate 40 and the mounting frame 30 by the second fastener 102, and the connection strength of the pressing plate 40 and the mounting frame 30 is facilitated. Further, two limiting sections 411 are distributed on both sides of the connecting hole of the second mounting portion 41 along the second direction. The second fastener 102 can be implemented as a bolt and a nut, and the nut is suitable to be accommodated between the two adjacent limiting sections 411.

[0061] In some embodiments, referring to Figure 6 、 Figure 8 and Figure 10 , the photovoltaic system further comprises a sealing piece 72 clamped between two adjacent mounting frames 30, which is conducive to avoiding rainwater and other liquids from flowing into the lower side of the photovoltaic panel 51, thereby improving the waterproof performance of the photovoltaic roof system. Further, the photovoltaic system further comprises a sealant 71 filled between two adjacent mounting frames 30, and the sealant 71 is arranged above the sealing piece 72 along the first direction to cover the sealing piece 72, which is conducive to avoiding rainwater and other liquids from seeping into the lower side of the photovoltaic panel 51, thereby further improving the waterproof performance of the photovoltaic roof system. The sealant 71 also fills the gap between the two adjacent mounting frames 30, which not only improves the wind resistance of the photovoltaic roof system, but also improves the aesthetics of the photovoltaic roof system. In at least one embodiment, the sealing piece 72 is implemented as a foam stick.

[0062] In some embodiments, referring to Figure 6 、 Figure 8 and Figure 10 , the photovoltaic system further comprises a corrosion prevention piece 80 arranged on the base to separate the base from the pressing plate 40 and the mounting frame 30, which is conducive to preventing electrochemical corrosion between different metals, thereby prolonging the service life of the base, the pressing plate 40 and the mounting frame 30. It is worth mentioning that the material of the corrosion prevention piece 80 includes but is not limited to rubber, silicone, foam and the like. In addition, a coating material can also be applied on the base, the pressing plate 40 and the mounting frame 30 to prevent electrochemical corrosion.

[0063] In some embodiments, referring to Figures 13 to 15The photovoltaic roof system further comprises a connecting assembly 10, which comprises a fixing member 11, a bearing member 14 and a purlin 20. The fixing member 11 is embedded in the installation site. The bearing member 14 is movably connected to the fixing member 11 along the first direction. The bearing member 14 is fixedly connected to the purlin 20, so that the purlin 20 is adjustably installed at the installation site along the first direction. The purlin 20 is used to bear the installation of the mounting frame 30 and the pressing plate 40. That is, the base is implemented as the purlin 20. It can be understood that by moving the purlin 20 along the first direction, the distance between the purlin 20 and the architectural base 91 at the installation site is adjusted, so that the height of the purlin 20 along the first direction is suitable for supporting the mounting frame 30, and the problems such as skewing and twisting of the photovoltaic panel 51 connected to the mounting frame 30 are reduced.

[0064] In some embodiments, referring to Figure 13 The fixing member 11 is implemented as a screw rod. A gasket 12 is arranged on the screw rod. A filler 13 is filled between the gasket 12 and the architectural base 91 at the installation site. The gasket 12 is pressed against the architectural base 91 by a nut. It can be understood that the gap between the fixing member 11 and the architectural base 91 is filled by the filler 13, which is beneficial to avoid the penetration of liquid such as rainwater into the gap between the fixing member 11 and the architectural base 91, thereby playing a waterproof role. The nut can press the gasket 12, which can prevent the gasket 12 from loosening under external force, thereby improving the sealing performance and further improving the waterproof performance of the photovoltaic roof system.

[0065] Further, referring to Figure 13 The bearing member 14 is sleeved on the screw rod. The bearing member 14 is provided with a leveling nut 15 on each of the upper side and the lower side along the first direction. The bearing member 14 is moved along the first direction by adjusting the leveling nut 15. That is, the leveling nut 15 is threadedly connected with the screw rod, and is movably connected with the screw rod along the first direction. The bearing member 14 is clamped between the two leveling nuts 15, so that the leveling nut 15 supports and fixes the bearing member 14, and the distance between the bearing member 14 and the architectural base 91 at the installation site is controlled by the leveling nut 15. It is worth mentioning that a washer is arranged between the bearing member 14 and the leveling nut 15 to prevent loosening.

[0066] In at least one embodiment, the screw is implemented as a galvanized screw, which is advantageous for corrosion and rust prevention. The galvanized screw is fixed in the hole of the structural base 91 by a chemical agent to improve the connection strength between the screw and the structural base 91. The gasket 12 is implemented as a self-closing hot-dip galvanized gasket, which is advantageous for corrosion and rust prevention, thereby improving the service life of the connection assembly 10. The filler 13 is implemented as sealant, and when injecting the sealant into the self-closing hot-dip galvanized gasket, the sealant needs to overflow to improve the sealing reliability. In addition, the filler 13 can also be implemented as glass glue, steel plastic mud, resin, polyurethane foam, etc.

[0067] It is worth mentioning that the screw, the gasket 12, and the self-tapping screw and the washer described above are all standard parts, which is advantageous for reducing manufacturing costs.

[0068] Furthermore, referring to Figure 13 , the purlin 20 is fixedly connected to the carrier 14 by the fastener, thereby improving the connection reliability of the purlin 20 and the carrier 14. It is worth mentioning that the carrier 14 is provided with a reserved hole to facilitate the fastener to pass through, thereby improving the installation efficiency. In addition, the reserved hole also serves to position the fastener, thereby improving the uniformity of the fastener installed on the carrier 14, making the installation operation more standardized. The fastener can be implemented as a self-tapping screw.

[0069] In some embodiments, referring to Figure 14 and Figure 15 , the photovoltaic roof system further includes an insulation layer 92, which passes through the fixing member 11 to be fixedly installed on the structural base 91 to be installed, thereby serving as a heat insulation function. It can be understood that, in the first direction, the insulation layer 92 is located below the carrier 14 to avoid interference of the insulation layer 92 with the installation of the purlin 20 and the photovoltaic panel 51.

[0070] In some embodiments, referring to Figures 14 to 17 , the photovoltaic roof system further includes a tile 52, which has a top portion 521, a side portion 522, and a bottom portion 523. The side portion 522 is located on the periphery of the top portion 521 to connect the top portion 521 and the bottom portion 523, so that the bottom portion 523 is located below the top portion 521 in the first direction. Under the condition that the tile 52 is installed on the purlin 20, the bottom portion 523 of the tile 52 is placed on the purlin 20, and the side portion 522 supports the top portion 521, so that the top portion 521 is located above the bottom portion 523 in the first direction. In at least one embodiment, the side portion 522 of the tile 52 is provided with an angle code, thereby fixedly connecting the tile 52 and the purlin 20 through the angle code.

[0071] It can be understood that the plane where the top 521 of the matching tile 52 is located and the plane where the photovoltaic panel 51 is located can be close to coplanar, so that the photovoltaic roof system as a whole is more flat, which is conducive to improving the aesthetics of the photovoltaic roof system. In addition, the shape and size of the matching tile 52 can be adjusted according to the situation to be installed, so that the matching tile 52 is suitable for being installed in the gap on the roof where it is difficult to arrange the photovoltaic panel 51, and plays a decorative role. Through the combined installation of the photovoltaic panel 51 and the matching tile 52, it is conducive to achieving full coverage of the photovoltaic roof system on the special-shaped roof and improving the aesthetics of the photovoltaic roof system.

[0072] Further, the matching tile 52 can also form a maintenance channel, which is suitable for being stepped on by construction personnel, which is convenient for construction personnel to go up to the photovoltaic roof system to perform operations such as inspection, maintenance, and replacement on the photovoltaic panel 51, and is conducive to avoiding damage to the photovoltaic panel 51 caused by the construction personnel stepping on the photovoltaic panel 51.

[0073] It is worth mentioning that, referring to Figure 14 , the sealing member 72 and the sealant 71 are also arranged between adjacent matching tiles 52 and between adjacent matching tiles 52 and the installation frame, which is conducive to avoiding the inflow of rainwater and the like into the lower part of the photovoltaic panel 51, so as to reduce the adverse effects on the thermal insulation layer 92 and the architectural foundation 91, and further improve the waterproof performance of the photovoltaic roof system.

[0074] In some embodiments, referring to Figure 16 and Figure 17 , the photovoltaic roof system further comprises a reinforcing member 60, and at least one reinforcing member 60 extends along the short edge direction of the matching tile 52 and is supported below the top 521 of the matching tile 52, which is conducive to improving the structural strength of the matching tile 52 and at the same time improving the load-bearing capacity of the matching tile 52. In at least one embodiment, a plurality of reinforcing members 60 are arranged at intervals along the long edge direction of the matching tile 52, the reinforcing member 60 is fixedly connected to the bottom 523 of the matching tile 52 by a fastener, and at least part of the reinforcing member 60 is in contact with the top 521 of the matching tile 52 to support the top 521 of the matching tile 52, thereby improving the structural strength of the matching tile 52 and reducing the risk of deformation of the matching tile 52. The fastener can be implemented as a pull rivet.

[0075] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic roofing system, characterized by, Comprising: a mounting frame, the mounting frame is provided with a frame portion and a first mounting portion, the frame portion is located above the first mounting portion along a first direction, the frame portion supports a photovoltaic panel; a pressing plate, the pressing plate is provided with a second mounting portion and a main body segment, the main body segment is connected to a base for bearing the mounting frame, the second mounting portion is bently extended from the main body segment to the first mounting portion of the mounting frame, so that the second mounting portion is engaged with the first mounting portion.

2. The photovoltaic roofing system of claim 1, wherein, The first mounting portion is provided with a first mounting groove, the opening direction of the frame portion and the opening direction of the first mounting groove are opposite, the second mounting portion of the pressing plate is bently engaged in the first mounting groove.

3. The photovoltaic roofing system of claim 2, wherein, The mounting frame further comprises a frame portion, the frame portion is connected between the frame portion and the first mounting portion, so as to support the frame portion above the first mounting portion along the first direction; The frame portion is bently extended from the upper end of the frame portion along the first direction, so as to define a receiving cavity between the frame portion and the frame portion, the opening of the receiving cavity is directed towards the photovoltaic panel along the second direction, so as to support the edge of the photovoltaic panel; The first mounting portion is rotatedly bent from the lower end of the frame portion along the first direction, so that the end of the first mounting portion extends upward along the first direction, the first mounting groove is defined between the frame portion and the first mounting portion, the opening of the first mounting groove is directed away from the photovoltaic panel along the second direction, so as to accommodate the second mounting portion of the pressing plate, so that the first mounting portion is engaged with the second mounting portion.

4. The photovoltaic roofing system of claim 2, wherein, The first mounting portion has a side wall, the side wall and the opening of the first mounting groove are oppositely arranged along the second direction, the side wall is provided with a fixing hole, the fixing hole penetrates through the side wall along the second direction, so as to be suitable for the first fastener to pass through, under the condition that the pressing plate is installed on the mounting frame, so that the first fastener abuts against the second mounting portion of the pressing plate.

5. The photovoltaic roofing system of claim 2, wherein, The pressing plate further comprises a support segment, the support segment is bently extended from one end of the main body segment towards the direction of the base, under the condition that the pressing plate is installed on the base, the support segment abuts against the base, so that the main body segment is spaced apart from the base along the first direction; the second mounting portion is bently extended from the other end of the main body segment, under the condition that the pressing plate is installed on the mounting frame, so that the second mounting portion is accommodated in the first mounting groove, and at least part of the second mounting portion is overlapped with at least part of the first mounting portion along the second direction.

6. The photovoltaic roofing system of claim 2, wherein, The pressing plate further comprises a support segment, the support segment is bently extended from one end of the main body segment towards the direction away from the base, the second mounting portion is rotatedly bent from the support segment, so that the end of the second mounting portion extends downward along the first direction, under the condition that the pressing plate is installed on the mounting frame, the second mounting portion is accommodated in the first mounting groove, and at least part of the second mounting portion is overlapped with at least part of the first mounting portion along the second direction.

7. The photovoltaic roofing system of claim 1, wherein, The second mounting portion of the pressing plate is rotatedly bent from the main body segment, so as to define a second mounting groove between the second mounting portion and the main body segment; The mounting frame further comprises a frame portion connected between the frame portion and the first mounting portion, so as to support the frame portion above the first mounting portion along the first direction; The frame portion is bent and extended from the upper end of the frame portion along the first direction, so as to define a receiving cavity between the frame portion and the frame portion, the opening of the receiving cavity is directed towards the photovoltaic panel along the second direction, so as to support the edge of the photovoltaic panel; The first mounting portion is connected to the lower end of the frame portion along the first direction, the first mounting portion is extended towards the side where the photovoltaic panel is located along the second direction, so as to be accommodated in the second mounting groove, so that the second mounting portion is engaged with the first mounting portion.

8. The photovoltaic roofing system of claim 7, wherein, The pressing plate further comprises at least one of a limiting segment and a protruding structure, the limiting segment is protruded from the surface of the second mounting portion away from the main body segment, so that at least part of the second fastener is accommodated between two adjacent limiting segments; the protruding structure is protruded from the surface of the second mounting portion towards the main body segment, so as to press against the first mounting portion of the mounting frame.

9. The photovoltaic roofing system of any of claims 1-8, wherein, The photovoltaic roof system further comprises a sealant and a sealing member, the sealing member is clamped between two adjacent mounting frames, the sealant is filled between two adjacent mounting frames, the sealant is arranged above the sealing member along the first direction, so as to cover the sealing member.

10. The photovoltaic roofing system of any of claims 1-8, wherein, The photovoltaic roof system further comprises a connecting assembly, the connecting assembly comprises a fixing member, a bearing member and a purlin, the fixing member is embedded in the installation position, the bearing member is movably connected to the fixing member along the first direction, the bearing member is fixedly connected to the purlin, so that the purlin is adjustably installed in the installation position along the first direction, the purlin is used to bear the mounting frame and the pressing plate.

Images