Large roof panel and roof structure

Abstract

The utility model relates to the technical field of building components, and provides a large roof panel which is characterized in that the large roof panel comprises a roof bottom plate, purlines, a roof outer plate and photovoltaic assemblies, and the purlines are preset on the roof bottom plate and used for being installed on a roof; the roof outer plate is arranged above the roof bottom plate; and the photovoltaic module is arranged above the roof outer plate. According to the technical scheme, the problems that in the prior art, building roofs are installed in a layered mode on site, high-altitude operation is much, the safety risk is large, and the construction period is long are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building components, and in particular to a large roof panel and a roof structure. Background Art

[0002] With the development of society and the advancement of science and technology, people's functional requirements for building roofs have become more and more diverse, especially in the field of metal roofs. From the initial requirement that the roof has waterproof and thermal insulation functions, to the current requirement that metal roofs have multiple functions such as photovoltaic power generation on the basis of meeting basic usage functions. The roof height of this type of building is relatively high, and the existing installation methods all use on-site layered installation, which involves more high-altitude operations, greater safety risks, and a longer construction period. Utility Model Content

[0003] The utility model provides a large roof panel and a roof structure, which solves the problems in the related art that the building roof is installed in layers on site, there are many high-altitude operations, the safety risk is relatively large, and the construction period is long.

[0004] The technical solution of the utility model is as follows: a large roof panel, the key is: including,

[0005] Roofing baseboard,

[0006] Purlins, the purlins are arranged on the roof bottom plate and are used for being installed on the roof;

[0007] A roof outer plate, the roof outer plate is arranged above the roof bottom plate;

[0008] A photovoltaic component is arranged above the roof outer panel.

[0009] It also includes a plate seam bracket, which is arranged above the roof bottom plate, the ends of two adjacent roof outer plates are overlapped with the plate seam bracket located below them, and the upper end of the plate seam bracket is arranged between the two adjacent roof outer plates.

[0010] The plate seam support comprises:

[0011] A first longitudinal plate, the first longitudinal plate being arranged between two adjacent roof outer plates;

[0012] A first lower transverse plate, the first lower transverse plate is arranged at the lower end of the first longitudinal plate, and the first lower transverse plate is arranged above the roof bottom plate;

[0013] An upper transverse plate is provided on both sides of the first longitudinal plate, and the roof outer plate is overlapped with the upper transverse plate located below the roof outer plate.

[0014] It also includes an intermediate clamp, by means of which the spliced ​​ends of two adjacent photovoltaic components are detachably connected, and the upper end of the plate seam bracket extends into the intermediate clamp.

[0015] The intermediate fixture comprises:

[0016] A first clamping plate, wherein the upper end of the plate seam bracket is clamped between two adjacent first clamping plates, and the upper ends of the two adjacent first clamping plates are detachably connected;

[0017] A first supporting plate, the first supporting plate being arranged on one side of the lower end of the first clamping plate;

[0018] A first pressing plate, wherein the first pressing plate is arranged above the first supporting plate, the photovoltaic assembly is clamped between the first supporting plate and the first pressing plate, and the first pressing plate and the first supporting plate are detachably connected.

[0019] Also includes,

[0020] An edge clamp, the edge clamp is arranged between the outer end of the photovoltaic assembly located at the outermost periphery and the outer end of the roof outer plate;

[0021] An edge bracket is arranged between the roof bottom plate and the edge clamp.

[0022] The edge clamp comprises:

[0023] A second clamping plate, the second clamping plate being arranged on the inner side of the roof outer plate;

[0024] A second supporting plate, the second supporting plate being arranged on the inner side of the lower end of the second clamping plate;

[0025] A second pressing plate, wherein the second pressing plate is arranged above the second supporting plate, the photovoltaic assembly is clamped between the second supporting plate and the second pressing plate, and the second pressing plate and the second supporting plate are detachably connected;

[0026] A third clamping plate is arranged on the outside of the roof outer plate, and the upper end of the edge bracket is clamped between the roof outer plate and the third clamping plate.

[0027] The side bracket comprises:

[0028] a second longitudinal plate, the upper end of which is clamped between the third clamping plate and the roof outer plate;

[0029] A second lower transverse plate, wherein the second lower transverse plate is arranged at the lower end of the second longitudinal plate, and the second lower transverse plate is arranged above the roof bottom plate.

[0030] Also includes,

[0031] A waterproof and breathable membrane layer, wherein the waterproof and breathable membrane layer is arranged on the upper surface of the roof base plate;

[0032] A thermal insulation layer, the thermal insulation layer being arranged on the upper surface of the waterproof and breathable membrane layer;

[0033] A gas barrier film layer is arranged on the upper surface of the thermal insulation layer.

[0034] The key to the roof structure is: it includes the roof panel.

[0035] The working principle and beneficial effects of the utility model are as follows: the roof panel includes a roof bottom plate, purlins, roof outer plates and photovoltaic modules, and the roof panel is divided into multiple roof bottom plates and multiple roof outer plates. The purlins are arranged on the roof bottom plate for installation on the roof; the roof outer plates are arranged above the roof bottom plate; and the photovoltaic modules are arranged above the roof outer plates. The purlins are first installed on the roof bottom plate. During installation, the purlins are installed on the roof, and the installation of a single roof bottom plate is completed. Compared with installing the purlins first and then installing the roof bottom plate during high-altitude operations, the time for high-altitude operations can be reduced, the safety risks can be reduced, and the construction period can be shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0037] Figure 1 It is a schematic diagram of the transverse structure of the roof panel in the utility model.

[0038] Figure 2 It is a schematic diagram of the longitudinal structure of the roof panel in the utility model.

[0039] Figure 3 It is a schematic diagram of the connection structure of the middle plate seam bracket, the middle clamp and the photovoltaic module of the utility model.

[0040] Figure 4 It is a schematic diagram of the connection structure of the side bracket, the side clamp and the photovoltaic module in the utility model.

[0041] Figure 5 It is a structural schematic diagram of the intermediate clamp in the utility model.

[0042] Figure 6 It is a structural schematic diagram of the middle edge clamp of the utility model.

[0043] Figure 7 It is a structural schematic diagram of the roof bottom plate in the utility model.

[0044] Figure 8 It is a structural schematic diagram of the roof outer plate in the utility model.

[0045] Fig. 9 It is a structural schematic diagram of two adjacent roof outer panels in the utility model when they are spliced.

[0046] Fig.10 It is a schematic diagram of the arrangement of the main purlins in the utility model.

[0047] Fig.11 It is a schematic diagram of the arrangement of the main purlin and the secondary purlin in the utility model.

[0048] Fig.12 It is a schematic diagram of the connection structure between the roof bottom plate and the secondary purlin in the utility model.

[0049] Fig.13 for Fig.12 A is an enlarged view of the middle image.

[0050] Fig.14 It is a schematic diagram of the connection structure between the Z-shaped secondary purlin and the roof bottom plate in the utility model.

[0051] Fig.15 for Fig.14 Enlarged view of B.

[0052] Fig.16 It is a schematic structural diagram of a single board obtained after laying an air barrier film layer and a thermal insulation layer on a roof bottom plate in the utility model.

[0053] Fig.17 It is a schematic diagram of the connection structure between a single plate and a truss in the utility model.

[0054] Fig.18 for Fig.17 Enlarged view of C in the middle.

[0055] Fig.19 It is a structural schematic diagram of a spliced ​​panel group obtained by splicing multiple single panels in the utility model.

[0056] Fig. 20 It is a schematic diagram of the structure after the roof outer plate is laid on the spliced ​​plate group in the utility model.

[0057] Fig.21 for Fig. 20 Enlarged view of D in the middle.

[0058] Fig. 22 It is a schematic diagram of the structure after photovoltaic modules are laid on the roof outer plate in the utility model.

[0059] Fig.23 for Fig. 22 Enlarged view of E.

[0060] In the figure: 1, roof bottom plate, 2, purlin, 2-1, main purlin, 2-2, secondary purlin, 3, roof outer plate, 3-1, supporting rib, 3-2, base plate, 3-3, first longitudinal plate, 3-4, second longitudinal plate, 3-5, first transverse plate, 3-6, third longitudinal plate, 3-7, fourth longitudinal plate, 3-8, second transverse plate, 4, photovoltaic module, 5, plate seam bracket, 5-1, first longitudinal plate, 5-2, first lower transverse plate, 5-3, upper Horizontal plate, 6, middle clamp, 6-1, first clamping plate, 6-2, first support plate, 6-3, first pressure plate, 7, side clamp, 7-1, second clamping plate, 7-2, second support plate, 7-3, second pressure plate, 7-4, third clamping plate, 8, side bracket, 8-1, second longitudinal plate, 8-2, second lower horizontal plate, 9, waterproof and breathable membrane layer, 10, thermal insulation layer, 11, air barrier membrane layer, 12, Z-shaped secondary purlin, 13, truss. DETAILED DESCRIPTION

[0061] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0062] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0063] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0064] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0065] Specific embodiments, reference Figure 1~Figure 2, which is an embodiment of the utility model, proposes a large roof panel, including a roof base plate 1, a purlin 2, a roof outer panel 3, and a photovoltaic module 4. The purlin 2 is preset on the roof base plate 1 for installation on the roof; the roof outer panel 3 is arranged above the roof base plate 1; and the photovoltaic module 4 is arranged above the roof outer panel 3.

[0066] Furthermore, the roof panel further comprises a plate seam support 5, which is arranged above the roof bottom plate 1, and the ends of two adjacent roof outer panels 3 are overlapped with the plate seam support 5 located below them, and the upper end of the plate seam support 5 is arranged between the two adjacent roof outer panels 3. Figure 1 As shown, the ends of the two adjacent roof outer panels 3 on the left and right are placed on the same plate seam bracket 5, and the plate seam bracket 5 can support and position the roof outer panels 3, so that the overall firmness and stability are better.

[0067] Furthermore, the plate seam support 5 includes a first longitudinal plate 5-1, a first lower transverse plate 5-2, and an upper transverse plate 5-3. The first longitudinal plate 5-1 is arranged between two adjacent roof outer plates 3; the first lower transverse plate 5-2 is arranged at the lower end of the first longitudinal plate 5-1, and the first lower transverse plate 5-2 is arranged above the roof bottom plate 1; the upper transverse plates 5-3 are arranged on both sides of the first longitudinal plate 5-1, and the roof outer plates 3 are overlapped with the upper transverse plates 5-3 located below them. Figure 3 As shown, the first longitudinal plate 5-1 is clamped between the left and right roof outer plates 3, and upper transverse plates 5-3 are arranged on the left and right sides of the first longitudinal plate 5-1, respectively used to support the roof outer plates 3 located above them, and the first lower transverse plate 5-2 is used to lock with the structure below, so as to fix and limit the first longitudinal plate 5-1 and the upper transverse plate 5-3, with a simple structure, a firm and reliable connection, and good stability. The first lower transverse plate 5-2 is locked with the structure below by bolts, which is convenient and quick to disassemble and assemble, saving time and effort.

[0068] Furthermore, the roof panel further comprises an intermediate clamp 6, and the spliced ​​ends of two adjacent photovoltaic modules 4 are detachably connected by means of the intermediate clamp 6, and the upper end of the panel seam bracket 5 extends into the intermediate clamp 6. Figure 1 and Figure 2 As shown, the two adjacent photovoltaic modules 4 on the left and right are locked together by the middle clamp 6, the connection is firm and reliable, and the assembly and disassembly are convenient and fast, saving time and effort.

[0069] Furthermore, the intermediate fixture 6 includes a first clamping plate 6-1, a first support plate 6-2, and a first pressing plate 6-3. The upper end of the plate seam support 5 is clamped between two adjacent first clamping plates 6-1, and the upper ends of the two adjacent first clamping plates 6-1 are detachably connected; the first support plate 6-2 is arranged on one side of the lower end of the first clamping plate 6-1; the first pressing plate 6-3 is arranged above the first support plate 6-2, and the photovoltaic module 4 is clamped between the first support plate 6-2 and the first pressing plate 6-3, and the first pressing plate 6-3 and the first support plate 6-2 are detachably connected. Figure 3 and Figure 5 As shown, the left and right first clamping plates 6-1 cooperate to fix and limit the plate seam bracket 5, and the first support plate 6-2 cooperates with the first pressure plate 6-3 to fix and limit the photovoltaic module 4. The structure is simple and the connection is firm and reliable. The two adjacent first clamping plates 6-1 and the first support plate 6-2 and the first pressure plate 6-3 are locked by the cooperation of bolts and nuts. The connection is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort.

[0070] Furthermore, the roof panel further comprises an edge clamp 7 and an edge bracket 8, wherein the edge clamp 7 is arranged between the outer end of the photovoltaic module 4 located at the outermost periphery and the outer end of the roof outer panel 3; and the edge bracket 8 is arranged between the roof bottom panel 1 and the edge clamp 7. Figure 4 As shown, the photovoltaic assembly 4 is connected to the outer end of the outer end of the roof outer panel 3 through the edge clamp 7, and the edge clamp 7 is connected to the structure below through the edge bracket 8, so as to support and position the outer ends of the photovoltaic assembly 4 and the roof outer panel 3 located at the outermost periphery. The connection is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort.

[0071] Furthermore, the edge clamp 7 includes a second clamping plate 7-1, a second support plate 7-2, a second pressure plate 7-3, and a third clamping plate 7-4. The second clamping plate 7-1 is arranged on the inner side of the roof outer panel 3; the second support plate 7-2 is arranged on the inner side of the lower end of the second clamping plate 7-1; the second pressure plate 7-3 is arranged above the second support plate 7-2, and the photovoltaic component 4 is clamped between the second support plate 7-2 and the second pressure plate 7-3, and the second pressure plate 7-3 and the second support plate 7-2 form a detachable connection; the third clamping plate 7-4 is arranged on the outer side of the roof outer panel 3, and the upper end of the edge bracket 8 is clamped between the roof outer panel 3 and the third clamping plate 7-4. Figure 4 and Figure 6As shown, the second clamping plate 7-1 and the third clamping plate 7-4 cooperate with the side bracket 8 and the roof outer plate 3 to play a fixed limiting role, and the second support plate 7-2 and the second pressure plate 7-3 cooperate to play a fixed limiting role on the photovoltaic module 4. The structure is simple and the connection is firm and reliable. The second support plate 7-2 and the second pressure plate 7-3, and the second clamping plate 7-1 and the third clamping plate 7-4 are all locked by bolts and nuts. The connection is firm and reliable, and the disassembly and assembly are convenient and quick, saving time and effort.

[0072] Furthermore, the side bracket 8 includes a second longitudinal plate 8-1 and a second lower transverse plate 8-2, wherein the upper end of the second longitudinal plate 8-1 is clamped between the third clamping plate 7-4 and the roof outer plate 3; the second lower transverse plate 8-2 is arranged at the lower end of the second longitudinal plate 8-1, and the second lower transverse plate 8-2 is arranged above the roof bottom plate 1. Figure 4 As shown, the upper end of the second longitudinal plate 8-1 and the outer end of the roof outer plate 3 are clamped between the second clamping plate 7-1 and the third clamping plate 7-4, and the second lower transverse plate 8-2 is used to lock with the structure below, so as to fix and limit the second longitudinal plate 8-1, with a simple structure, a firm and reliable connection, and good stability. The second lower transverse plate 8-2 is locked with the structure below by bolts, which is convenient and quick to disassemble and assemble, saving time and effort.

[0073] Furthermore, the roof panel further comprises a waterproof and breathable membrane layer 9, a thermal insulation layer 10, and a gas barrier membrane layer 11, wherein the waterproof and breathable membrane layer 9 is arranged on the upper surface of the roof base plate 1; the thermal insulation layer 10 is arranged on the upper surface of the waterproof and breathable membrane layer 9; and the gas barrier membrane layer 11 is arranged on the upper surface of the thermal insulation layer 10. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the thermal insulation layer 10 can play a thermal insulation effect, the waterproof and breathable membrane layer 9 can prevent the water vapor in the house from contacting the thermal insulation layer 10 and affecting the thermal insulation effect of the thermal insulation layer 10, and the air barrier membrane layer 11 is arranged on the outside of the thermal insulation layer 10, which can further improve the thermal insulation effect.

[0074] In the utility model, the structure of the roof bottom plate 1 is as follows Figure 7 The structure of the roof outer plate 3 is as shown in FIG. Figure 8As shown, the roof outer panel 3 includes a support rib 3-1 protruding upward in the middle, and also includes base plates 3-2 arranged on both sides of the support rib 3-1. The side of one base plate 3-2 away from the support rib 3-1 is bent upward to form a first longitudinal plate 3-3, a second longitudinal plate 3-4 and a first transverse plate 3-5. The second longitudinal plate 3-4 is located on the inner side of the first longitudinal plate 3-3, and the first transverse plate 3-5 is arranged between the upper end of the first longitudinal plate 3-3 and the upper end of the second longitudinal plate 3-4; the side of the other base plate 3-2 away from the support rib 3-1 is bent upward to form a third longitudinal plate 3-6, a fourth longitudinal plate 3-7 and a second transverse plate 3-8. The fourth longitudinal plate 3-7 is located on the outer side of the third longitudinal plate 3-6, and the second transverse plate 3-8 is arranged between the upper end of the third longitudinal plate 3-6 and the upper end of the fourth longitudinal plate 3-7. When two adjacent roof outer panels 3 are spliced, as shown in FIG. Fig. 9 As shown, the third longitudinal plate 3-6, the fourth longitudinal plate 3-7 and the second transverse plate 3-8 of one roof outer plate 3 are buckled on the periphery of the first longitudinal plate 3-3, the second longitudinal plate 3-4 and the first transverse plate 3-5 of another roof outer plate 3, so that a part of the two adjacent roof outer plates 3 overlap, as shown in FIG. Fig. 9 As shown, the waterproof effect can be improved. The overlapping parts of the two roof outer panels 3 are clamped between the two first clamping plates 6-1 of the middle clamp 6, as shown in FIG. Figure 3 The bent portion of the outermost roof panel 3 is clamped between the second clamping plate 7-1 and the third clamping plate 7-4 of the edge clamp 7, as shown Figure 4 As shown, the positioning of the roof outer plate 3 is more firm and reliable. The photovoltaic module 4 is installed above the supporting rib 3-1.

[0075] Roof structure, including roof decking.

[0076] The method for installing the roof panel comprises the following steps:

[0077] S1. Divide the roof structure into multiple roof panels according to the structural form, and determine the installation order of the roof panels;

[0078] S2, assembling the purlins 2 of each roof panel on the ground, and fixing the roof bottom plate 1 to the purlins 2;

[0079] The purlin 2 includes a main purlin 2-1 and a secondary purlin 2-2. The main purlin 2-1 is first arranged according to the spacing of the purlin support plates of the truss 13. Fig.10 As shown, all the main purlins 2-1 are arranged in a straight line;

[0080] Then arrange the secondary purlin 2-2 according to the spacing of the truss purlin support plate, and fix the main purlin 2-1 and the secondary purlin 2-2 together with self-tapping screws. Fig.11As shown, all the secondary purlins 2-2 are arranged in a straight line, and the arrangement direction of the secondary purlins 2-2 is perpendicular to the arrangement direction of the main purlins 2-1, and the length direction of the secondary purlins 2-2 is perpendicular to the length direction of the main purlins 2-1;

[0081] Then lay the roof bottom plate 1 above the secondary purlin 2-2, and fix the roof bottom plate 1 and the secondary purlin 2-2 together with self-tapping screws. Fig.12 and Fig.13 As shown, the length direction of the roof bottom plate 1 is perpendicular to the length direction of the secondary purlin 2-2;

[0082] Then fix the Z-shaped secondary purlin 12 above the roof bottom plate 1, such as Fig.14 and Fig.15 As shown, the length direction of the Z-shaped secondary purlin 12 is perpendicular to the length direction of the roof bottom plate 1, and all the Z-shaped secondary purlins 12 are arranged along the length direction of the roof bottom plate 1;

[0083] Then, a gas barrier film layer 11 is laid on the roof bottom plate 1, and a heat insulation layer 10 is laid on the gas barrier film layer 11 to obtain a single board. Fig.16 As shown;

[0084] S3, use a crane to hoist the single board to the corresponding position of the truss 13, and fix the purlin 2 of the single board to the purlin support plate of the truss 13, such as Fig.17 and Fig.18 As shown, after all the single boards are installed in sequence, a spliced ​​board group is obtained, such as Fig.19 As shown;

[0085] S4, laying a waterproof and breathable membrane layer 9 on the splicing plate group, installing a roof support on the waterproof and breathable membrane layer 9, and laying a roof outer plate 3 on the roof support by using a high-altitude tile press. Fig. 20 and Fig.21 As shown, the roof outer plate 3 is fixed by an electric locking machine. Considering the waterproofing of the roof, the overlap between two adjacent roof outer plates 3 should be considered when assembling the roof panels. Fig. 9 As shown;

[0086] S5, laying photovoltaic modules 4 on the roof outer plate 3, such as Fig. 22 and Fig.23 As shown, the photovoltaic module 4 can be bonded to the crest of the roof outer panel 3 by adhesive, and can also be fixed to the crest of the roof outer panel 3 by the cooperation of the panel seam bracket 5, the middle clamp 6, the side clamp 7, and the side bracket 8.

[0087] The utility model divides the roof panel into multiple roof bottom plates 1, multiple roof outer plates 3 and multiple photovoltaic modules, and installs the purlin 2 on each roof bottom plate 1 on the ground. During installation, the purlin 2 is installed on the roof, and the installation of a single roof bottom plate 1 is completed. Compared with first installing the purlin 2 and then installing the roof bottom plate 1 during high-altitude operations, the time for high-altitude operations can be reduced, the safety risk can be reduced, and the construction period can be shortened.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A large roof panel, characterized in that: include, Roof base plate (1), Purlins (2), the purlins (2) being arranged on the roof base plate (1) and being used for being installed on the roof; A roof outer plate (3), the roof outer plate (3) being arranged above the roof bottom plate (1); A photovoltaic assembly (4), wherein the photovoltaic assembly (4) is arranged above the roof outer panel (3).

2. A large roof panel according to claim 1, characterized in that: It also comprises a plate seam bracket (5), wherein the plate seam bracket (5) is arranged above the roof bottom plate (1), the ends of two adjacent roof outer plates (3) are overlapped with the plate seam bracket (5) located below them, and the upper end of the plate seam bracket (5) is arranged between the two adjacent roof outer plates (3).

3. A large roof panel according to claim 2, characterized in that: The plate seam support (5) comprises: a first longitudinal plate (5-1), the first longitudinal plate (5-1) being arranged between two adjacent roof outer plates (3); A first lower transverse plate (5-2), the first lower transverse plate (5-2) being arranged at the lower end of the first longitudinal plate (5-1), and the first lower transverse plate (5-2) being arranged above the roof bottom plate (1); An upper transverse plate (5-3) is provided on both sides of the first longitudinal plate (5-1), and the roof outer plate (3) is overlapped with the upper transverse plate (5-3) located below the roof outer plate (3).

4. A large roof panel according to claim 2, characterized in that: It also comprises an intermediate clamp (6), by means of which the spliced ​​ends of two adjacent photovoltaic modules (4) are detachably connected, and the upper end of the plate seam bracket (5) extends into the intermediate clamp (6).

5. A large roof panel according to claim 4, characterized in that: The intermediate fixture (6) comprises: A first clamping plate (6-1), wherein the upper end of the plate seam bracket (5) is clamped between two adjacent first clamping plates (6-1), and the upper ends of the two adjacent first clamping plates (6-1) are detachably connected; A first supporting plate (6-2), the first supporting plate (6-2) being arranged on one side of the lower end of the first clamping plate (6-1); A first pressing plate (6-3), wherein the first pressing plate (6-3) is arranged above the first supporting plate (6-2), the photovoltaic assembly (4) is clamped between the first supporting plate (6-2) and the first pressing plate (6-3), and the first pressing plate (6-3) and the first supporting plate (6-2) are detachably connected.

6. A large roof panel according to claim 1, characterized in that: Also includes, An edge clamp (7), the edge clamp (7) being arranged between the outer end of the photovoltaic assembly (4) located at the outermost periphery and the outer end of the roof outer panel (3); An edge bracket (8), wherein the edge bracket (8) is arranged between the roof base plate (1) and the edge clamp (7).

7. A large roof panel according to claim 6, characterized in that: The edge clamp (7) comprises: A second clamping plate (7-1), the second clamping plate (7-1) being arranged on the inner side of the roof outer plate (3); A second supporting plate (7-2), the second supporting plate (7-2) being arranged on the inner side of the lower end of the second clamping plate (7-1); a second pressing plate (7-3), the second pressing plate (7-3) being arranged above the second supporting plate (7-2), the photovoltaic assembly (4) being clamped between the second supporting plate (7-2) and the second pressing plate (7-3), the second pressing plate (7-3) and the second supporting plate (7-2) being detachably connected; A third clamping plate (7-4), the third clamping plate (7-4) being arranged on the outside of the roof outer plate (3), and the upper end of the side bracket (8) being clamped between the roof outer plate (3) and the third clamping plate (7-4).

8. A large roof panel according to claim 7, characterized in that: The side bracket (8) comprises: a second longitudinal plate (8-1), the upper end of the second longitudinal plate (8-1) being clamped between the third clamping plate (7-4) and the roof outer plate (3); A second lower transverse plate (8-2), wherein the second lower transverse plate (8-2) is arranged at the lower end of the second longitudinal plate (8-1), and the second lower transverse plate (8-2) is arranged above the roof bottom plate (1).

9. A large roof panel according to claim 1, characterized in that: Also includes, A waterproof and breathable membrane layer (9), wherein the waterproof and breathable membrane layer (9) is arranged on the upper surface of the roof base plate (1); A thermal insulation layer (10), the thermal insulation layer (10) being arranged on the upper surface of the waterproof and breathable membrane layer (9); A gas barrier film layer (11), wherein the gas barrier film layer (11) is arranged on the upper surface of the thermal insulation layer (10).

10. Roof structure, characterized by: The invention comprises the roof panel according to any one of claims 1 to 9.

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