Fusion mirror roof panel, roofing structure, and building

Abstract

The present invention provides a fusion mirror roof panel, a roofing structure, and a building. The fusion mirror roof panel comprises: a waterproof plate layer, comprising a first metal plate layer and a first waterproof layer attached to the outer side of the first metal plate layer along the thickness direction of the fusion mirror roof panel; a second metal plate layer, located on the inner side of the waterproof plate layer and arranged opposite to the waterproof plate layer, wherein the second metal plate layer is provided with multiple ribs protruding toward the inside, the ribs extend in a second direction, the multiple ribs are arranged at intervals in a first direction, the first direction is perpendicular to the second direction, and the ribs are used for being in contact with purlins; and a thermal insulation layer, sandwiched between the waterproof plate layer and the second metal plate layer. The fusion mirror roof panel provided by the present invention can be produced and assembled in a factory, thereby reducing the construction procedure, lowering the on-site installation costs, and increasing the on-site construction speed.

Description

Integration of mirror panels, roof structures and buildings Technical Field

[0001] The present application relates to the field of construction, and in particular to a fused mirror panel, a roof structure and a building. Background Art

[0002] With the advancement and development of science and technology, metal has become a widely used material in the construction industry, especially in the industrial construction industry, where metal roofing has become the choice of many owners.

[0003] In related technologies, metal roofs of industrial buildings are usually assembled on-site, where the roof base plate, waterproofing materials, purlins, insulation materials, and roof outer panels are installed and spliced ​​layer by layer on-site. This method of roof construction has complex on-site construction procedures, a large workload, and a relatively low construction speed.

[0004] Another related technology involves metal roofing, which consists of multiple panels that are assembled on-site. However, capillary water leakage is easily generated between adjacent panels, making assembly difficult. Furthermore, on-site construction is difficult to ensure quality and prone to leaks.

[0005] In summary, there are many problems in the metal roofing in the related art that need to be solved. Summary of the Invention

[0006] The embodiments of the present application provide a fusion mirror panel, a roof structure and a building to solve or alleviate one or more technical problems in the prior art.

[0007] The present application provides a fusion mirror panel, comprising:

[0008] The waterproof plate layer includes a first metal plate layer and a first waterproof layer attached to the outside of the first metal plate layer along the thickness direction of the fused mirror plate;

[0009] a second metal plate layer located on an inner side of the waterproof plate layer and arranged opposite to the waterproof plate layer, the second metal plate layer being provided with a plurality of ribs protruding toward the inner side, the ribs extending along the second direction, the plurality of ribs being spaced apart from each other in the first direction, the first direction being perpendicular to the second direction, and the ribs being used to contact the purlins;

[0010] The thermal insulation layer is sandwiched between the waterproof plate layer and the second metal plate layer.

[0011] In some embodiments, the dimension of the rib in the first direction gradually increases in the thickness direction from the inside to the outside of the fused mirror plate.

[0012] In some embodiments, the plurality of ribs include first ribs located at both ends of the first direction, and a plurality of second ribs located between the two first ribs, and a cross-section of the second ribs in the first direction is in the shape of an inverted trapezoid.

[0013] In some embodiments, the height of the rib is 20 mm to 35 mm.

[0014] In some embodiments, the material of the first waterproof layer includes thermoplastic polyolefin.

[0015] In some embodiments, in a cross section in the first direction, the fused mirror panel further includes a sealing layer sandwiched between the waterproof plate layer and the second metal plate layer and located at both ends of the thermal insulation layer.

[0016] In some embodiments, the insulation layer is made of rock wool, and the sealing layer is made of polyurethane.

[0017] In some embodiments, on the cross-section in the first direction, the two end edges of the waterproof board layer are respectively provided with a first shielding edge extending toward the second metal board layer, and the two end edges of the second metal board layer are respectively provided with a second shielding edge extending toward the waterproof board layer. The first shielding edge and the second shielding edge located at the same end correspond to each other, and a preset gap is provided between the first shielding edge and the second shielding edge.

[0018] In some embodiments, in a first direction, the fusion mirror plate includes a first end and a second end that are oppositely arranged, the first end includes a first regional portion and a second regional portion, and the second regional portion protrudes relative to the first regional portion; the second end includes a third regional portion and a fourth regional portion, and the third regional portion protrudes relative to the fourth regional portion, the third regional portion matches the first regional portion, and the second regional portion matches the fourth regional portion, so that the first end and the second end of two adjacent fusion mirror plates can be aligned and overlapped.

[0019] In some embodiments, the first region portion and the second region portion are parallel to the thickness direction of the fused mirror plate; the third region portion and the fourth region portion are parallel to the thickness direction of the fused mirror plate.

[0020] In some embodiments, the first and third regions are located outside the second and fourth regions, and an outer surface of the third region forms a recessed area relative to an outer surface of the main body of the waterproof board layer.

[0021] In some embodiments, the inner side surface of the second region is flush with the lower end surface of the rib.

[0022] In some embodiments,

[0023] The waterproof board layer includes a first main body portion located between a first end portion and a second end portion, the waterproof board layer also includes a first bent portion connected to an edge of the first main body portion facing the first end portion, the first bent portion includes a first bent edge along a thickness direction and a second bent edge along a first direction, the first regional portion includes a first bent edge, and the second regional portion includes a second bent edge;

[0024] The second metal sheet layer includes a second main body portion located between the first end and the second end portion, the second metal sheet layer also includes a first extension portion connected to the edge of the second main body portion facing the first end portion, the first extension portion is opposite to the second bending edge, and the second area portion also includes the first extension portion.

[0025] In some embodiments, the waterproof board layer also includes a first shielding edge, which is connected to the outer edge of the second bent edge; the second metal plate layer also includes a second shielding edge, which is connected to the outer edge of the first extension portion, the first shielding edge corresponds to the second shielding edge, and a preset gap is set between the first shielding edge and the second shielding edge.

[0026] In some embodiments,

[0027] The second metal plate layer includes a second main body portion located between the first end portion and the second end portion, the second metal plate layer also includes a second bent portion connected to an edge of the second main body portion facing the second end portion, the second bent portion includes a third bent edge along the thickness direction and a fourth bent edge along the first direction, the fourth region portion includes the third bent edge, and the third region portion includes the fourth bent edge;

[0028] The waterproof board layer includes a first main body located between the first end and the second end, and the waterproof board layer also includes a second extension portion connected to the edge of the first main body facing the second end, the second extension portion is opposite to the fourth bending edge, and the third area also includes a second extension portion.

[0029] In some embodiments, the second extension is configured to be " "-shaped bend, the second extension portion includes a fifth bending edge along the thickness direction and a sixth bending edge along the first direction, and the sixth bending edge is opposite to the fourth bending edge.

[0030] In some embodiments, the waterproof board layer also includes a first shielding edge, which is connected to the outer edge of the second extension portion; the second metal plate layer also includes a second shielding edge, which is connected to the outer edge of the fourth bent edge. The first shielding edge corresponds to the second shielding edge, and a preset gap is set between the first shielding edge and the second shielding edge.

[0031] In some embodiments, the fusion mirror panel further includes a blocking strip, which is attached to the outer surfaces of the first shielding edge and the second shielding edge to cover the preset gap, and the blocking strip is made of a heat-insulating material.

[0032] In some embodiments, the dimension of the fused mirror plate in the second direction is greater than the dimension in the first direction.

[0033] As a second aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a roof structure, comprising a plurality of fused mirror panels as in any embodiment of the present disclosure, wherein the plurality of fused mirror panels are spliced ​​with each other in a first direction and a second direction.

[0034] In some embodiments, in the second direction, the fusion mirror plate includes a third end and a fourth end that are oppositely disposed, and the third end and the fourth end are matching parallel end surfaces;

[0035] In the second direction, two adjacent fusion mirror panels are respectively the first fusion mirror panel and the second fusion mirror panel, and the third end of the first fusion mirror panel is affixed and docked with the fourth end of the second fusion mirror panel.

[0036] In some embodiments, the fitting gap between the third end of the first fused mirror panel and the fourth end of the second fused mirror panel is filled with a thermal insulation material.

[0037] In some embodiments, the roof structure further includes a first waterproof covering sheet located above the fusion mirror panel, the first waterproof covering sheet being arranged along a first direction and covering a fitting gap between the first fusion mirror panel and the second fusion mirror panel.

[0038] In some embodiments, the material of the first waterproof layer in the fusion mirror panel includes thermoplastic polyolefin, the material of the first waterproof covering sheet includes thermoplastic polyolefin, and the first waterproof covering sheet is connected to the outer surface of the fusion mirror panel by hot air welding.

[0039] In some embodiments, it also includes a first purlin and a second purlin, the first purlin is located on the lower side of the first fusion mirror panel, the second purlin is located on the lower side of the second fusion mirror panel, the first purlin and the second purlin are both arranged along the first direction, the first purlin and the second purlin are both close to the fitting gap, the first screw passes through the first fusion mirror panel and is fixedly connected to the first purlin, the second screw passes through the second fusion mirror panel and is fixedly connected to the second purlin, and the first waterproof covering sheet covers the first screw and the second screw.

[0040] In some embodiments, in a first direction, the fusion mirror plate includes a first end portion and a second end portion that are oppositely disposed, the first end portion includes a first region portion and a second region portion, the second region portion protrudes relative to the first region portion; the second end portion includes a third region portion and a fourth region portion, the third region portion protrudes relative to the fourth region portion, the third region portion matches the first region portion, and the second region portion matches the fourth region portion;

[0041] In the first direction, the two adjacent fusion mirror panels are the third fusion mirror panel and the fourth fusion mirror panel, the first end of the third fusion mirror panel is arranged opposite to the second end of the fourth fusion mirror panel, the third area portion is overlapped with the second area portion, the first screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the first purlin, and the second screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the second purlin.

[0042] In some embodiments, the first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, the outer surface of the third area portion forms a recessed area relative to the outer surface of the main body of the waterproof board layer, the upper end heads of the first screw and the second screw are both located in the recessed area, and the height of the upper end heads of the first screw and the second screw is less than the depth of the recessed area.

[0043] As a third aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a roof structure, comprising a plurality of fused mirror panels as in any embodiment of the present disclosure, wherein the plurality of fused mirror panels are spliced ​​with each other in a first direction and a second direction.

[0044] In some embodiments, in the first direction, two adjacent fusion mirror panels are respectively the third fusion mirror panel and the fourth fusion mirror panel, the first end of the third fusion mirror panel is arranged opposite to the second end of the fourth fusion mirror panel, and the third area portion is overlapped with the second area portion.

[0045] In some embodiments, a third purlin extending along the first direction and located on the lower side of the fusion mirror plate is further included, and a plurality of third screws are arranged along the second direction. The third screws pass through the third area portion and the second area portion and are fixedly connected to the third purlin.

[0046] In some embodiments, the first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, the outer surface of the third area portion forms a recessed area relative to the outer surface of the main body of the waterproof board layer, and the height of the upper end head of the third screw is less than the depth of the recessed area.

[0047] In some embodiments, a second waterproof covering sheet extending along the second direction is further included. The second waterproof covering sheet is located on the outside of the fused mirror panel and covers the third area. The material of the second waterproof covering sheet includes thermoplastic polyolefin. The material of the first waterproof layer of the fused mirror panel includes thermoplastic polyolefin. The second waterproof covering sheet is connected to the first waterproof layer of the fused mirror panel by hot air welding.

[0048] An embodiment of the present application also provides a building, comprising a roof structure according to any embodiment of the present disclosure.

[0049] The technical solution of the disclosed embodiment is that the ribs on the second metal plate layer can effectively support the load of the fused mirror panel, preventing the fused mirror panel from flexing and deforming during use, thereby improving the structural strength and stability of the roof. Furthermore, the outer side of the fused mirror panel is provided with a waterproof layer, which includes a first metal plate layer and a first waterproof layer attached to the outer side of the first metal plate layer along the thickness direction of the fused mirror panel. Thus, the first waterproof layer is located on the outer surface of the roof, effectively preventing outdoor water from entering the interior of the building from the outside. Furthermore, an insulation layer is provided between the waterproof layer and the second metal plate layer, eliminating gaps between the insulation layers. The absence of purlins or other structures between the insulation layers effectively avoids cold and thermal bridges, thereby improving the thermal insulation effect of the roof.

[0050] In addition, the fused mirror panels of the disclosed embodiment can be produced and assembled in a factory, with high production efficiency and small quality deviation. During on-site construction, it is only necessary to assemble the fused mirror panels into a roof, which reduces the on-site construction process, reduces the on-site installation cost, and improves the on-site construction speed. It can be used for large-scale operations in a short period of time, making it possible to complete the project ahead of schedule.

[0051] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0053] FIG1 is a schematic cross-sectional view of a fused mirror plate in a first direction according to an embodiment of the present disclosure;

[0054] FIG2 is a schematic cross-sectional view of a fused mirror plate in a first direction in another embodiment of the present disclosure;

[0055] FIG3 is a schematic cross-sectional view of a fused mirror plate in a first direction in another embodiment of the present disclosure;

[0056] FIG4 is an enlarged schematic diagram of part A in FIG2 and FIG3;

[0057] FIG5 is an enlarged schematic diagram of part B in FIG2 and FIG3;

[0058] FIG6 is a schematic diagram of overlapping two adjacent fused mirror panels in a first direction in one embodiment;

[0059] FIG7 is a schematic plan view of a roof structure according to an embodiment of the present disclosure;

[0060] FIG8 is a schematic diagram of the DD section in FIG7 in one embodiment;

[0061] FIG9 is a schematic diagram of the DD section in FIG7 in another embodiment;

[0062] FIG10 is a schematic diagram of the EE section in FIG7 in one embodiment;

[0063] FIG11 is a schematic diagram of two fused mirror panels overlapped and connected in another embodiment;

[0064] FIG12 is a schematic diagram of the EE section in FIG7 in another embodiment.

[0065] Description of reference numerals:

[0066] 01, fused mirror plate; 10, waterproof board layer; 100, first main body; 101, first shielding edge; 12, first bending portion; 121, first bending edge; 122, second bending edge; 13, second extension portion; 131, fifth bending edge; 132, sixth bending edge;

[0067] 20, second metal plate layer; 200, second main body; 201, second shielding edge; 21, rib; 22, first extension portion; 23, second bending portion; 231, third bending edge; 232, fourth bending edge;

[0068] 31. Insulation layer; 32. Sealing layer; 33. Sealing strip;

[0069] 41. First region; 42. Second region; 43. Third region; 44. Fourth region; 45. First recessed area; 46. Second recessed area;

[0070] 51. First waterproof covering sheet; 52. Second waterproof covering sheet; 53. Thermal insulation material. DETAILED DESCRIPTION

[0071] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0072] In the prior art, roofing panels used for roofing consist of upper and lower metal sheets, with a core material layer bonded between the two metal sheets. Polyurethane is typically used as the core material. While polyurethane cores are lightweight, strong, and offer strong adhesion to the metal sheets, they have poor fire resistance and cannot meet the fire rating requirements of buildings.

[0073] Related art also includes a roof panel consisting of two metal sheets with rock wool bonded between them. This panel is assembled using a butt-jointed method and is commonly used on walls. This composite panel has excellent fire resistance and can meet fire rating requirements. However, it suffers from low strength and is heavy.

[0074] The roof panels in the related art are difficult to assemble adjacent roof panels, and it is not easy to ensure the quality of on-site construction, which is prone to water leakage. In addition, the fastening nails penetrate from the upper surface to the lower surface of the roof panel, extending from the outdoors to the indoors, forming cold bridges and hot bridges, which are not conducive to energy conservation and consumption reduction of buildings, and are prone to condensation. The waterproof membrane is set on the lower side of the roof panel. After the waterproof membrane is pierced by the fastening nails, a hole is formed, and the welding quality is difficult to ensure. In addition, the leaked water from the roof easily accumulates on the waterproof membrane, forming water vapor corrosion on the steel plate. In addition, there are gaps in the assembly of adjacent roof panels, which easily allow dust to enter the room, and also cause capillary water to enter the room, causing serious water leakage. Once a leak occurs, it is difficult to find the leak point, resulting in difficulty in maintenance.

[0075] In order to solve the problems existing in the related art, an embodiment of the present disclosure provides a fusion mirror panel and roof structure.

[0076] It should be noted that the fused mirror panels in the embodiments of the present disclosure can be applied to the roof of a building. The fused mirror panels can also be called roof panels. In order to distinguish them from roof panels in conventional technology in the field, the roof panels of the embodiments of the present disclosure are described as fused mirror panels. The "outside" herein refers to the side facing the outside of the building, and the "inside" refers to the side facing the inside of the building. For example, after the fused mirror panels in the embodiments of the present disclosure are applied to the roof structure, for the waterproofing layer and the second metal layer, the waterproofing layer is located on the side facing the outside of the building, and the second metal layer is located on the side facing the inside of the building.

[0077] Figure 1 is a schematic cross-sectional view of a fused mirror panel in one embodiment of the present disclosure, Figure 2 is a schematic cross-sectional view of a fused mirror panel in another embodiment of the present disclosure, and Figure 3 is a schematic cross-sectional view of a fused mirror panel in yet another embodiment of the present disclosure. That is, the cross-sections shown in Figures 1-3 can be extended along a second direction to form the fused mirror panel of the present disclosure, and the second direction can be perpendicular to the first direction. As shown in Figures 1-3, the fused mirror panel can include a waterproof sheet layer 10, a second metal sheet layer 20, and an insulation layer 31. The waterproof sheet layer 10 can include a first metal sheet layer and a first waterproof layer attached to the outside of the first metal sheet layer along the thickness direction of the fused mirror panel. The second metal sheet layer 20 is located on the inner side of the waterproof sheet layer 10 and is arranged opposite to the waterproof sheet layer 10.

[0078] In one embodiment, as shown in Figures 1 and 2, the second metal sheet layer 20 is provided with a plurality of inwardly protruding ribs 21, which extend along a second direction. The ribs 21 are spaced apart in the first direction and are configured to contact purlins. Purlins support the roof structure. When the fused mirror panels are placed on the purlins, the lower surfaces of the ribs 21 contact the purlins, thereby supporting the fused mirror panels. The second direction may be perpendicular to the first direction.

[0079] As shown in Figures 1-3, the insulation layer 31 is sandwiched between the waterproof sheet layer 10 and the second metal sheet layer 20. For example, the insulation layer 31 may be bonded to the inner surfaces of both the waterproof sheet layer 10 and the second metal sheet layer 20. The insulation layer 31 is bonded to the waterproof sheet layer 10 and the second metal sheet layer 20 via an adhesive layer. The upper surface of the insulation layer 31 is bonded to the waterproof sheet layer 10 via the adhesive layer, and the lower surface of the insulation layer 31 is bonded to the second metal sheet layer 20 via the adhesive layer.

[0080] When used in a roof structure, the fusion mirror panels of the disclosed embodiments have ribs 21 on the second metal sheet layer 20 that effectively support the load of the fusion mirror panels, preventing them from flexing and deforming during use, thereby improving the structural strength and stability of the roof. Furthermore, the fusion mirror panels are provided with a waterproof layer 10 on the outside. The waterproof layer 10 comprises a first metal sheet layer and a first waterproof layer attached to the outside of the first metal sheet layer along the thickness of the fusion mirror panel. Thus, the first waterproof layer is located on the outer surface of the roof, effectively preventing outdoor water from entering the building from the outside. Furthermore, an insulation layer 31 is provided between the waterproof layer 10 and the second metal sheet layer 20, eliminating gaps between the insulation layers 31. Furthermore, there are no purlins or other structures between the insulation layers 31, effectively preventing cold and thermal bridges and improving the roof's thermal insulation.

[0081] Roof panels in related technologies require the panels to be assembled layer by layer on-site, resulting in complex on-site construction processes, high installation costs, and reduced construction speed. The fused mirror panels of the disclosed embodiments can be manufactured and assembled in a factory, offering high production efficiency and minimal quality deviation. During on-site construction, only the fused mirror panels need to be assembled into a roof, reducing on-site construction processes, lowering on-site installation costs, and increasing construction speed. This makes it suitable for large-scale operations in a short period of time, enabling projects to be completed ahead of schedule.

[0082] In one embodiment, as shown in Figures 1 and 2, the dimension of the ribs 21 in the first direction gradually increases from the inside to the outside of the fused mirror panel in the thickness direction. In other words, in Figures 1 and 2, the width of the ribs 21 gradually increases from bottom to top. This structure can increase the supporting force of the ribs 21, which helps the ribs 21 support the weight of the entire fused mirror panel.

[0083] The plurality of ribs 21 may include first ribs 21a located at both ends of the first direction, and a plurality of second ribs 21b located between the first ribs 21a. The second ribs 21b may have an inverted trapezoidal cross-section in the first direction. The inverted trapezoidal shape of the second ribs 21b facilitates the forming of the second metal sheet layer 20 and reduces production costs.

[0084] The side surface of the first rib 21a facing the second rib 21b can be an inclined surface, as shown in Figure 2, and the side surface of the first rib 21a facing away from the second rib 21b can be a plane parallel to the thickness direction. For example, the right side surface of the first rib 21a at the left end is an inclined surface, and the left side surface of the first rib 21a at the right end is an inclined surface.

[0085] The cross-sectional shape of the first rib 21a and the second rib 21b is not limited to the structure shown in Figures 1 and 2, and the side surface of the second rib 21b is not limited to an inclined plane, but can also be an arc-shaped surface or other structures. As long as the width of the rib 21 gradually increases from bottom to top, the effect of increasing the supporting force can be achieved.

[0086] In other embodiments, the cross-sectional shape of the rib 21 may also be a triangular or rectangular structure. By providing the rib 21 protruding inward on the second metal plate layer 20, the flexural deformation resistance of the fused mirror panel during use can be effectively improved, thereby improving the structural strength and stability of the roof.

[0087] For example, as shown in Figures 1 and 2, the height of the rib 21 is H2, which can be between 20 mm and 35 mm. For example, H2 can be 20 mm, 25 mm, 27 mm, 30 mm, or 35 mm. If H2 is less than 20 mm, the rib 21 is too small to effectively resist flexural deformation. If H2 is greater than 35 mm, the thickness of the main body of the fused mirror panel is too small, affecting its performance as a roof. Setting the rib thickness H2 between 20 mm and 35 mm ensures that the rib 21 effectively resists flexural deformation while also ensuring that the fused mirror panel's performance as a roof is not affected.

[0088] The fused mirror panel in the embodiment of the present disclosure can increase the thickness of the insulation layer 31 when the overall thickness H1 of the fused mirror panel changes, without changing the structure and size of the waterproof plate layer 10 and the second metal plate layer 20. Therefore, the fused mirror panel in the embodiment of the present disclosure can be suitable for thicknesses of various specifications, expanding the scope of application of the fused mirror panel.

[0089] For example, the outer surface of the fused mirror panel, that is, the outer surface of the waterproof board layer 10 , may be a flat surface.

[0090] In one embodiment, the material of the first waterproof layer may include thermoplastic polyolefin (TPO). For example, the material of the first waterproof layer is thermoplastic polyolefin. The first waterproof layer of this material has excellent waterproofing capabilities and good hot-air welding capabilities. Therefore, when the waterproof cover sheet is installed on the outer surface of the roof, hot-air welding can be used for sealing, thereby achieving watertightness and airtightness of the roof and ensuring the cleanliness of the interior of the building.

[0091] In one embodiment, the insulation layer 31 may be made of rock wool. Rock wool has excellent fire resistance, and a rock wool insulation layer 31 can improve the fire resistance of the fused mirror panel, meeting the fire rating requirements of the building. The rock wool insulation layer 31 is relatively heavy, and thus the fused mirror panel is heavier, which improves the sound insulation performance of the fused mirror panel and the sound insulation effect of the roof. In other embodiments, the insulation layer 31 can also be made of other materials with good thermal insulation properties, not limited to rock wool.

[0092] As shown in Figure 2, in a cross-section taken along the first direction, the fused mirror panel further includes a sealing layer 32 sandwiched between the waterproof sheet layer 10 and the second metal sheet layer 20. The sealing layer 32 is located at both ends of the thermal insulation layer 31. This structure seals the thermal insulation layer 31 within the first direction by the sealing layer 32 located at the ends, preventing the thermal insulation layer 31 from falling off at both ends and improving the performance of the fused mirror panel.

[0093] It should be noted that the blocking layer 32 is not shown in FIG. 1 and FIG. 3 . It is understandable that, in the embodiments of FIG. 1 and FIG. 3 , the blocking layer 32 may also be provided at both ends of the thermal insulation layer 31 .

[0094] For example, the sealing layer 32 can be made of polyurethane. The insulation layer 31 can be bonded to the inner surface of the first metal plate layer and to the inner surface of the second metal plate layer 20. However, the bonding strength between the insulation layer 31 made of rock wool and the metal plate is relatively low, while the bonding strength between the insulation layer 31 and polyurethane is relatively high. By providing the sealing layer 32 at both ends of the insulation layer 31 and using polyurethane as the sealing layer 32, the bonding strength between the sealing layer 32 and the metal plate is further increased. As a result, the sealing layer 32 can effectively seal the insulation layer 31 inside, preventing the insulation layer 31 from falling off at both ends, further improving the performance and stability of the fused mirror panel.

[0095] Figure 4 is an enlarged schematic diagram of section A in Figures 2 and 3, and Figure 5 is an enlarged schematic diagram of section B in Figures 2 and 3. As shown in Figures 1-5, in a cross-section taken along a first direction, the waterproofing layer 10 is provided with first shielding edges 101 extending toward the second metal sheet layer 20 at both ends. That is, the waterproofing layer 10 is provided with downwardly extending first shielding edges 101 at both ends. The second metal sheet layer 20 is provided with second shielding edges 201 extending toward the waterproofing layer 10 at both ends. That is, the second metal sheet layer 20 is provided with upwardly extending second shielding edges 201 at both ends. The first shielding edges 101 and the second shielding edges 201 located at the same end correspond to each other. For example, the first shielding edge 101 at the left end corresponds to the second shielding edge 201, and the first shielding edge 101 at the right end corresponds to the second shielding edge 201. A preset gap is provided between the first shielding edge 101 and the second shielding edge 201.

[0096] It is understood that the temperatures inside and outside a building are typically different. With the waterproofing layer 10 facing outward and the second metal layer 20 facing inward, the temperature of the waterproofing layer 10 and the second metal layer 20 are typically different. A preset gap is provided between the first shielding edge 101 and the second shielding edge 201, thereby isolating the waterproofing layer 10 and the second metal layer 20 in the thickness direction. This prevents cold and hot bridge effects, and prevents heat transfer between the waterproofing layer 10 and the second metal layer 20, further enhancing the thermal insulation performance of the fused mirror panel.

[0097] Moreover, the first shielding edge 101 and the second shielding edge 201 can shield the thermal insulation layer 31 and the sealing layer 32 sandwiched between the waterproof plate layer 10 and the second metal plate layer 20, so that the thermal insulation layer 31 and the sealing layer 32 are confined inside the fusion mirror panel, thereby more effectively ensuring the thermal insulation performance of the fusion mirror panel.

[0098] The specific value of the preset gap can be set as needed and is not specifically limited.

[0099] For example, the first metal plate layer can be formed from a metal plate, and the second metal plate layer 20 can be formed from a metal plate. The metal plate can be a steel plate, an aluminum plate, or the like. The surface of the metal plate can also be plated with other materials to enhance its performance, such as corrosion resistance. For example, if the metal plate is a steel plate, at least one or both sides of the steel plate can be galvanized.

[0100] In one embodiment, as shown in FIG1 , in a first direction, the fused mirror panel may include a first end and a second end, oppositely disposed, with the first end being the right end and the second end being the left end. The first and second ends may be flat surfaces, illustratively parallel to the thickness direction of the fused mirror panel. As shown in FIG1 , a first recessed area 45 may be provided above the end where the first end resides, and a second recessed area 46 may be provided above the end where the second end resides. When securing the fused mirror panel to the purlin, screws may be provided in the first recessed area 45 or the second recessed area 46, so that the upper end of the screw is received in the first recessed area 45 or the second recessed area 46, preventing the upper end of the screw from protruding from the outer surface of the fused mirror panel. As an example, the waterproofing layer 10 may have bends at both ends to form the first recessed area 45 and the second recessed area 46.

[0101] In another embodiment, as shown in Figures 2-5 , the fused mirror plate can include a first end and a second end oppositely disposed in a first direction. For example, in Figures 2 and 3 , the first end is the right end, and the second end is the left end. The first end includes a first region 41 and a second region 42 . The second region 42 protrudes relative to the first region 41 . In other words, the second region 42 protrudes relative to the first region 41 in the first direction. The first end extends in a second direction, so that both the first region 41 and the second region 42 extend in the second direction.

[0102] As shown in Figures 2-5 , the second end portion includes a third region 43 and a fourth region 44. The third region 43 protrudes relative to the fourth region 44. In other words, the third region 43 protrudes relative to the fourth region 44 in the first direction. The second end portion extends in the second direction, so that both the third region 43 and the fourth region 44 extend in the second direction. The third region 43 mates with the first region 41, and the second region 42 mates with the fourth region 44, so that the first and second ends of two adjacent fused mirror panels can mate and overlap.

[0103] For example, the overlap between the first and second ends of two adjacent fused mirror panels can be 20 mm to 30 mm, for example, 20 mm, 25 mm, or 30 mm. That is, the second region 42 protrudes from the first region 41 by 20 mm to 30 mm, and the third region 43 protrudes from the fourth region 44 by 20 mm to 30 mm.

[0104] In the embodiment of Figure 2 , the second metal sheet layer 20 is provided with a plurality of inwardly protruding ribs 21 extending along a second direction. The ribs 21 are spaced apart in the first direction and are configured to contact the purlins. The purlins support the roof structure. When the fused mirror panels are placed on the purlins, the lower surfaces of the ribs 21 contact the purlins, thereby supporting the fused mirror panels. The second direction may be perpendicular to the first direction.

[0105] In the embodiment shown in Figure 3, the second metal sheet layer 20 can be a flat metal sheet layer. When the fused mirror panel is arranged on the purlin, the second metal sheet layer 20 contacts the purlin so that the purlin supports the fused mirror panel.

[0106] Figure 6 is a schematic diagram of overlapping two adjacent fused mirror panels in the first direction in an embodiment. As shown in Figure 6, the third regional portion 43 matches the first regional portion 41, the second regional portion 42 matches the fourth regional portion 44, and the third regional portion 43 and the second regional portion 42 of the two adjacent fused mirror panels 01c and 01d are overlapped and connected.

[0107] In the fused mirror panels of the disclosed embodiments, two adjacent fused mirror panels can be overlapped in a first direction, simplifying the splicing of the two fused mirror panels. This facilitates the splicing of multiple fused mirror panels into a roof in the first direction, thereby improving roof production efficiency. The fused mirror panels are provided with a waterproof layer 10 on the outside. The waterproof layer 10 comprises a first metal sheet layer and a first waterproof layer adhered to the outside of the first metal sheet layer along the thickness of the fused mirror panels. Thus, the first waterproof layer is located on the outer surface of the roof, effectively preventing outdoor water from entering the interior of the building. Furthermore, an insulation layer 31 is provided between the waterproof layer 10 and the second metal sheet layer 20, eliminating gaps between the insulation layers 31. Furthermore, there are no purlins or other structures between the insulation layers 31, effectively avoiding cold and hot bridges and improving the roof's thermal insulation.

[0108] Exemplarily, the first region 41 and the second region 42 are parallel to the thickness direction of the fused mirror plate. For example, in Figure 5 , the outer end surface of the first region 41 is parallel to the thickness direction of the fused mirror plate, while the outer end surface of the second region 42 is parallel to the thickness direction of the fused mirror plate. In the drawings of this disclosure, the thickness direction of the fused mirror plate is the vertical direction.

[0109] The third region 43 and the fourth region 44 are parallel to the thickness direction of the fused mirror plate. For example, in FIG4 , the outer end surface of the third region 43 is parallel to the thickness direction of the fused mirror plate, and the outer end surface of the fourth region 44 is parallel to the thickness direction of the fused mirror plate.

[0110] In other embodiments, the outer end surfaces of the first region 41 and the third region 43 may be inclined surfaces, as long as the outer end surfaces of the first region 41 and the third region 43 are parallel to each other. The outer end surfaces of the second region 42 and the fourth region 44 may be inclined surfaces, as long as the outer end surfaces of the second region 42 and the fourth region 44 are parallel to each other.

[0111] In other embodiments, the outer end surfaces of the first region 41 and the third region 43 may also be curved surfaces, as long as they match. The outer end surfaces of the second region 42 and the fourth region 44 may also be curved surfaces, as long as they match.

[0112] In one embodiment, as shown in Figures 4 and 5 , the first and third regions 41 and 43 are located outside the second and fourth regions 42 and 44, i.e., the first region 41 is located outside the second region 42, and the third region 43 is located outside the fourth region 44. The outer surface of the third region 43 forms a recessed area relative to the outer surface of the main body of the waterproofing board layer 10, as shown in Figure 4 .

[0113] It can be understood that the main body of the waterproof board layer 10 can be the portion of the waterproof board layer 10 located between the first end and the second end, that is, the portion of the waterproof board layer 10 in the first direction that is not used for connection with the adjacent fused mirror panel. Figure 2 shows the first main body 100 of the waterproof board layer 10 and the second main body 200 of the second metal board layer 20.

[0114] As can be seen in Figure 6, the third area 43 overlaps the second area 42, allowing the fixing screws LD to penetrate the third and second areas 43, 42 and secure to the purlin LT, securing the fused mirror panel to the purlin LT. The recessed area accommodates the upper end of the fixing screw, i.e., the nut, preventing it from protruding from the outer surface of the fused mirror panel.

[0115] In one embodiment, as shown in FIG. 1 to FIG. 5 , the inner surface of the second region 42 is flush with the inner support surface of the fused mirror plate.

[0116] As shown in Figure 3, when the second metal plate layer 20 is a flat metal plate layer, the lower surface of the second metal plate layer 20 is the inner supporting surface of the fusion mirror plate, and the inner surface of the second area portion 42 is flush with the lower surface of the second metal plate layer 20.

[0117] As shown in FIG2 , when the second metal plate is provided with ribs 21 , the lower end surface of the ribs 21 is the inner supporting surface of the fusion mirror plate. Then, the inner surface of the second area portion 42 is flush with the lower end surface of the ribs 21 .

[0118] With this structure, as shown in Figure 6, when the fused mirror panels overlap in the first direction and are supported on the purlins, the inner surface of the second region 42 can also contact and be supported on the purlins. As a result, the second region 42 can better support the third region 43 overlapping it. In other words, the overlapping second region 42 and third region 43 are sequentially stacked and supported on the purlins. This structure ensures a stronger overlap between two adjacent fused mirror panels in the first direction, further improving the structural strength of the roof.

[0119] In one embodiment, as shown in FIG2 to FIG5, the waterproof board layer 10 may include a first main body portion 100 located between a first end portion and a second end portion. The waterproof board layer 10 also includes a first bent portion 12 connected to the edge of the first main body portion 100 facing the first end portion. The first bent portion 12 includes a first bent edge 121 along the thickness direction and a second bent edge 122 along the first direction. The first region portion 41 includes the first bent edge 121, and the second region portion 42 includes the second bent edge 122. In other words, the first bent portion 12 may be " The vertical bending edge is the first bending edge 121 , the horizontal bending edge is the second bending edge 122 , the first area portion 41 includes the first bending edge 121 , and the second area portion 42 includes the second bending edge 122 .

[0120] The second metal sheet layer 20 includes a second main portion 200 located between the first end and the second end. The second metal sheet layer 20 also includes a first extension portion 22 connected to the edge of the second main portion 200 facing the first end, the first extension portion 22 being opposite the second bent edge 122. The second region 42 also includes the first extension portion 22.

[0121] The waterproof sheet layer 10 further includes a first shielding edge 101, which is connected to the outer edge of the second bent edge 122. The second metal sheet layer 20 further includes a second shielding edge 201, which is connected to the outer edge of the first extension portion 22. The first shielding edge 101 corresponds to the second shielding edge 201, and a predetermined gap d is provided between the first shielding edge 101 and the second shielding edge 201.

[0122] With this structure, the first bend 12 and the first shielding edge 101 connected to the first bend 12 can be integrally formed with the first main body 100, thereby improving the strength of the waterproofing layer 10. The first extension 22 and the second shielding edge 201 connected to the first extension 22 can be integrally formed with the second main body 200, thereby improving the strength of the second metal sheet layer 20. The integrally formed waterproofing layer 10 and second metal sheet layer 20 can improve the assembly efficiency of the fused mirror panel, enhance production efficiency, and reduce costs.

[0123] In one embodiment, as shown in FIG2 to FIG5, the second metal plate layer 20 further includes a second bent portion 23 connected to the edge of the second main body portion 200 toward the second end. The second bent portion 23 includes a third bent edge 231 along the thickness direction and a fourth bent edge 232 along the first direction. The fourth region portion 44 includes the third bent edge 231, and the third region portion 43 includes the fourth bent edge 232. In other words, the second bent portion 23 can be " The fourth region 44 includes the third bending edge 231 , and the third region 43 includes the fourth bending edge 232 .

[0124] The waterproof board layer 10 further includes a second extension portion 13 connected to the edge of the first main body portion 100 facing the second end portion. The second extension portion 13 is opposite to the fourth bent edge 232 . The third region further includes a second extension portion 13 .

[0125] For example, the second extension portion 13 is configured to be “ The second extension portion 13 is bent in a "" shape, and includes a fifth bending edge 131 along the thickness direction and a sixth bending edge 132 along the first direction, and the sixth bending edge 132 is opposite to the fourth bending edge 232.

[0126] The waterproof sheet layer 10 further includes a first shielding edge 101, which is connected to the outer edge of the second extension portion 13. The second metal sheet layer 20 further includes a second shielding edge 201, which is connected to the outer edge of the fourth bent edge 232. The first shielding edge 101 corresponds to the second shielding edge 201, and a preset gap d is set between the first shielding edge 101 and the second shielding edge 201.

[0127] With this structure, the second extension 13 and the first shielding edge 101 connected to the second extension 13 can be integrally formed with the first main body 100, thereby improving the strength of the waterproofing layer 10. The second bent portion 23 and the second shielding edge 201 connected to the second bent portion 23 can be integrally formed with the second main body 200, thereby improving the strength of the second metal sheet layer 20. The integrally formed waterproofing layer 10 and second metal sheet layer 20 can improve the assembly efficiency of the fused mirror panel, enhance production efficiency, and reduce costs.

[0128] For example, the first main body 100, the first bend 12, the second extension 13, and the first shielding edges 101 at both ends can be integrally formed to form a one-piece waterproofing layer 10. This waterproofing layer 10 has higher structural strength and stability. The second main body 200, the first extension 22, the second bend 23, and the second shielding edges 201 at both ends can be integrally formed to form a one-piece second metal sheet layer 20. This second metal sheet layer 20 has higher structural strength and stability. Using an integrally formed waterproofing layer 10 and an integrally formed second metal sheet layer 20 to manufacture a fused mirror panel can improve assembly efficiency, enhance the overall structural strength of the fused mirror panel, and reduce costs.

[0129] The waterproof plate layer 10 and the second metal plate layer 20 of this structure are isolated and contactless at both ends by a preset gap d. Therefore, the waterproof plate layer 10 and the second metal plate layer 20 are isolated from each other in the thickness direction, avoiding the cold bridge and hot bridge effects, and avoiding heat transfer between the waterproof plate layer 10 and the second metal plate layer 20, further improving the thermal insulation effect of the fused mirror panel.

[0130] In one embodiment, as shown in Figures 1-5, the fused mirror panel may also include a blocking strip 33. The blocking strip 33 is attached to the outer surfaces of the first shielding edge 101 and the second shielding edge 201 to close a predetermined gap. The blocking strip 33 may be made of a thermally insulating material. For example, the thermally insulating material may be foam. The blocking strip 33 completely seals the insulation layer 31 of the fused mirror panel within the space defined by the waterproofing layer 10 and the second metal sheet layer 20, thereby further ensuring the thermal insulation performance of the fused mirror panel. Furthermore, the blocking strip 33 made of thermally insulating material prevents heat transfer between the waterproofing layer 10 and the second metal sheet layer 20, effectively preventing cold and thermal bridge effects. Furthermore, the blocking strip 33 made of thermally insulating material has a certain degree of elasticity. When two adjacent fused mirror panels are overlapped, the blocking strip 33 can fill the gap between the third region 43 and the first region 41, as well as the gap between the second region 42 and the fourth region 44, ensuring a sealed overlap between the two adjacent fused mirror panels and further enhancing the thermal insulation of the roof.

[0131] In one embodiment, the dimensions of the fused mirror panel in the second direction can be greater than those in the first direction. That is, the first and second ends are located at opposite ends of the fused mirror panel in the width direction, and the first and second ends are located along the long sides of the fused mirror panel. The overlapping long sides of two adjacent fused mirror panels along the width direction further enhance the connection between the two adjacent fused mirror panels and improve the structural strength of the roof.

[0132] In the second direction, the fused mirror plate includes a third end and a fourth end that are disposed opposite each other. The third end and the fourth end have matching parallel end surfaces, that is, the end surface of the third end and the end surface of the fourth end are parallel to each other. For example, the third end and the fourth end can both be flat end surfaces. For example, the third end and the fourth end can be flat end surfaces parallel to the thickness direction. In other embodiments, the third end and the fourth end can be flat end surfaces that are not parallel to the thickness direction, as long as the end surfaces of the third end and the fourth end are parallel to each other.

[0133] Figure 7 is a schematic plan view of a roof structure according to an embodiment of the present disclosure. The present disclosure also provides a roof structure, as shown in Figure 7 , comprising a plurality of fused mirror panels 01 according to the present disclosure. The plurality of fused mirror panels 01 are spliced ​​together along a first direction and a second direction. The first direction may be the width of the fused mirror panels, and the second direction may be the length of the fused mirror panels.

[0134] Figure 8 is a schematic diagram of the DD section in Figure 7 in one embodiment, and Figure 9 is a schematic diagram of the DD section in Figure 7 in another embodiment. As shown in Figures 8 and 9, in the second direction, the fused mirror plate includes a third end and a fourth end that are oppositely disposed and mate with each other. In the second direction, two adjacent fused mirror plates, the first fused mirror plate 01a and the second fused mirror plate 01b, have the third end of the first fused mirror plate 01a and the fourth end of the second fused mirror plate 01b abutted against each other.

[0135] In the second direction, the third ends and the fourth ends of the two adjacent fused mirror panels are fitted and connected, and the splicing method is simple, which further improves the on-site construction speed.

[0136] The gap between the third end of the first fused mirror panel 01a and the fourth end of the second fused mirror panel 01b is filled with a heat-insulating material 53 .

[0137] When the third end of the first fused mirror panel 01a and the fourth end of the second fused mirror panel 01b are joined, a gap typically exists. Filling this gap with insulation material 53 prevents heat exchange between the building's exterior and interior, further improving the roof's thermal insulation. In one embodiment, as shown in Figures 8 and 9 , the roof structure also includes a first waterproof covering sheet 51 positioned above the fused mirror panels. The first waterproof covering sheet 51 is positioned along a first direction and covers the gap between the first fused mirror panel 01a and the second fused mirror panel 01b. The first waterproof covering sheet 51 is made of a waterproof material.

[0138] The first waterproof covering sheet 51 can cover the joint gap between the two fused mirror panels, so that water above the roof will not enter the room through the joint gap, thereby improving the waterproof effect of the roof.

[0139] As shown in FIG7 , the multiple fitting gaps between the multiple groups of first fused mirror panels 01a and the second fused mirror panels 01b extend and are connected along the first direction, and the first waterproof covering sheet 51 is arranged along the first direction. Therefore, the first waterproof covering sheet 51 can be a whole extending along the first direction. The first waterproof covering sheet 51 can cover the multiple connected fitting gaps extending along the first direction, thereby further improving the waterproof effect of the roof.

[0140] For example, the material of the first waterproof layer in the fused mirror panel includes thermoplastic polyolefin, the material of the first waterproof cover sheet 51 also includes thermoplastic polyolefin, and the first waterproof cover sheet 51 is connected to the outer surface of the fused mirror panel by hot air welding. That is, the first waterproof cover sheet 51 is connected to the first waterproof layer in the fused mirror panel by hot air welding. This method can ensure that the first waterproof cover sheet 51 is sealed to the outer surface of the fused mirror panel.

[0141] It should be noted that in the embodiment shown in Figure 1 , the connection method between two adjacent fused mirror panels in the first direction can be the same as that shown in Figures 8 or 9 . In the first direction, the opposing end faces of the two adjacent fused mirror panels are abutted against each other. The abutment gap can be filled with insulation material. A waterproof cover sheet is provided above the connection between the two fused mirror panels, sealingly connected to the outer surfaces of the fused mirror panels.

[0142] The roof structure may further include a first purlin LT1 and a second purlin LT2. The first purlin LT1 is located on the underside of the first fused mirror panel 01a, and the second purlin LT2 is located on the underside of the second fused mirror panel 01b. Both the first purlin LT1 and the second purlin LT2 are arranged along a first direction. The first purlin LT1 and the second purlin LT2 are both located near the fitting gap. A first screw passes through the first fused mirror panel 01a and is fixedly connected to the first purlin LT1. A second screw passes through the second fused mirror panel 01b and is fixedly connected to the second purlin LT2. The first waterproof cover sheet 51 covers the first and second screws.

[0143] The first fusion mirror panel 01a and the second fusion mirror panel 01b are fixedly connected to different purlins, and the first fusion mirror panel 01a and the second fusion mirror panel 01b are fixed separately, so as to avoid the transmission of temperature stress at the docking position between the two fusion mirror panels, thereby further improving the structural stability of the roof.

[0144] As shown in Figures 8 and 9, the number of first screws can be multiple, for example, three, and the multiple first screws can be arranged along the second direction; the number of second screws can be multiple, for example, three, and the multiple second screws can be arranged along the second direction.

[0145] The first purlin LT1 and the second purlin LT2 can be arranged in a fitting manner. The first purlin LT1 and the second purlin LT2 can both be "C" steel, as shown in Figure 8. The first purlin LT1 and the second purlin LT2 are fixedly connected. As shown in Figure 9, one of the first purlin LT1 and the second purlin LT2 can be "C" steel, and the "C" steel can generally be in the shape of "匚", and the other can be angle steel, such as " " shape. The specific shapes of the first purlin LT1 and the second purlin LT2 can be selected according to needs and are not specifically limited here.

[0146] Referring to Figure 6, in the first direction, the fusion mirror plate includes a first end portion and a second end portion arranged opposite to each other. The first end portion includes a first region portion 41 and a second region portion 42, and the second region portion 42 protrudes relative to the first region portion 41. The second end portion includes a third region portion 43 and a fourth region portion 44, and the third region portion 43 protrudes relative to the fourth region portion 44. The third region portion 43 matches the first region portion 41, and the second region portion 42 matches the fourth region portion 44. In the first direction, two adjacent fusion mirror plates are respectively the third fusion mirror plate 01c and the fourth fusion mirror plate 01d. The first end portion of the third fusion mirror plate 01c is arranged opposite to the second end portion of the fourth fusion mirror plate 01d, and the third region portion 43 and the second region portion 42 are lap-connected.

[0147] Referring to Figures 6, 8 and 9, the first screw penetrates through the corresponding third region portion 43 and second region portion 42 and is fixedly connected to the first purlin LT1, and the second screw penetrates through the corresponding third region portion 43 and second region portion 42 and is fixedly connected to the second purlin LT2. With such a structure, the first screw or the third screw can fix two adjacent fusion mirror plates in the first direction on the purlin at the same time, which can reduce the number of screws used. Moreover, the screw penetrates through two adjacent fusion mirror plates at the same time, increasing the connection strength and improving the wind uplift resistance performance of the roof.

[0148] Exemplarily, the number of the first screw or the second screw can be multiple, such as three. Multiple first screws or second screws can be arranged in the second direction.

[0149] Referring to Figure 6, the first region portion 41 and the third region portion 43 are located outside relative to the second region portion 42 and the fourth region portion 44. The outer surface of the third region portion 43 forms a recessed area relative to the outer surface of the main body portion of the waterproof plate layer 10. The upper end heads of the first screw and the second screw are both located in the recessed area, and the height of the upper end heads of the first screw and the second screw is less than the depth of the recessed area.

[0150] In the related art, after the screws fix the roof panel to the purlin, the upper end of the screw will protrude from the outer surface of the roof panel, and a special covering sheet is required to cover the upper end of the screw. This not only increases the number of parts and assembly steps, but also the protrusion of the upper end of the screw from the outer surface of the roof panel also causes the outer surface of the roof to be uneven, which is not conducive to the installation of photovoltaic devices above the roof.

[0151] In the roof structure disclosed herein, the upper end surfaces of the first screw and the second screw do not protrude from the outer surface of the fused mirror panel, thereby ensuring that the outer surface of the roof is flat, saving the covering sheet used to cover the upper end heads of the screws, and the flat outer surface of the roof is conducive to the installation of photovoltaic devices at any position above the roof.

[0152] Figure 10 is a schematic diagram of the EE section in Figure 7 in one embodiment. Referring to Figures 2-5 and 10, in the first direction, adjacent fused mirror panels are the third fused mirror panel 01c and the fourth fused mirror panel 01d. The first end of the third fused mirror panel 01c is positioned opposite the second end of the fourth fused mirror panel 01d, and the third region 43 overlaps the second region 42.

[0153] In the related art, two adjacent roof panels are spliced ​​together, which is difficult to construct and reduces installation efficiency. In the disclosed embodiment, two adjacent fused mirror panels are connected by overlapping in the first direction, which simplifies on-site installation, effectively reducing installation difficulty and improving construction efficiency.

[0154] In the disclosed embodiment, the upper surface of the second region 42 is parallel to the lower surface of the third region 43. This allows the opposing surfaces of the third region 43 and the second region 42 to overlap, enhancing the overlap effect. For example, as shown in FIG10 , the upper surface of the second region 42 is parallel to the first direction, and the lower surface of the third region 43 is parallel to the first direction. In other embodiments, the upper surface of the second region 42 and the lower surface of the third region 43 may be at a predetermined angle to the first direction. As long as the upper surface of the second region 42 and the lower surface of the third region 43 are parallel, an overlapping connection between the third region 43 and the second region 42 can be achieved.

[0155] Figure 11 is a schematic diagram of an overlapping connection between two fused mirror panels in another embodiment. In one embodiment, the upper surface of the second region 42 can be inclined upward along a first direction, and correspondingly, the lower surface of the third region 43 can be inclined downward along the first direction, as shown in Figure 11. With this structure, the third region 43 overlaps the second region 42, and the two fused mirror panels exert a restraining force in the first direction on each other, further enhancing the strength of the overlapping connection between the two fused mirror panels.

[0156] As shown in Figure 10, the roof structure may also include a third purlin LT3 extending along the first direction and located below the fused mirror panels. A plurality of third screws are arranged along the second direction, penetrating the third region 43 and the second region 42 to securely connect to the third purlin LT3. With this structure, the third screws can simultaneously secure two adjacent fused mirror panels in the first direction to the purlin, reducing the number of screws used. Furthermore, the screws simultaneously penetrate both adjacent fused mirror panels, increasing the connection strength and improving the roof's wind-uplift resistance.

[0157] As shown in Figure 10, the first and third regions 41 and 43 are located outboard of the second and fourth regions 42 and 44. The outer surface of the third region 43 forms a recessed area OX relative to the outer surface of the main body of the waterproofing layer 10. The upper ends of the third screws LD3 are located in the recessed area OX, and the height of the upper ends of the third screws LD3 is less than the depth of the recessed area OX. This structure prevents the upper ends of the third screws from protruding from the outer surface of the fused mirror panel, ensuring a smooth roof surface and reducing the need for cover sheets to cover the upper ends of the screws. Furthermore, the smooth roof surface facilitates installation of photovoltaic systems at any location on the roof.

[0158] In the embodiment of the present disclosure, the screws used to fix the fusion mirror panels to the purlins can be located in the recessed area at the overlapping position of the two fusion mirror panels, so that the upper ends of the screws are all accommodated in the recessed area and will not be directly exposed to the outdoors, thereby reducing the cold bridge and thermal bridge effects of the screws and avoiding the formation of condensation water on the upper ends of the screws.

[0159] As shown in Figure 10, the roof structure also includes a second waterproof covering sheet 52 extending along the second direction. The second waterproof covering sheet 52 is located outside the fused mirror panels and covers the third area 43. The second waterproof covering sheet 52 is made of thermoplastic polyolefin, and the first waterproof layer of the fused mirror panels is also made of thermoplastic polyolefin. The second waterproof covering sheet 52 is connected to the first waterproof layer of the fused mirror panels via hot-air welding. In this structure, the second waterproof covering sheet 52 is elongated and covers the overlapping portion of the two fused mirror panels along the second direction. The second waterproof covering sheet 52 is hot-air welded to the outer surface of the fused mirror panels. Hot-air welding prevents electrical leakage, ensures a tight connection between the second waterproof covering sheet 52 and the fused mirror panels, and further improves the roof's waterproof performance. Furthermore, the screws at the overlapping portion do not protrude from the outer surface of the fused mirror panels, resulting in a flat second waterproof covering sheet 52, facilitating installation of the photovoltaic system.

[0160] Figure 12 is a schematic diagram of the EE section in Figure 7 in another embodiment. Referring to Figures 1 and 12, in a first direction, the fused mirror plate may include a first end and a second end oppositely disposed, with the first end being the right end and the second end being the left end. For example, as shown in Figure 1, a first recessed area 45 may be provided above the end where the first end resides, and a second recessed area 46 may be provided above the end where the second end resides. The first recessed area 45 and the second recessed area 46 are provided for mounting screws.

[0161] In the first direction, two adjacent fused mirror panels are the third fused mirror panel 01c and the fourth fused mirror panel 01d. The third fused mirror panel 01c and the fourth fused mirror panel 01d are affixed and butted together. The third fused mirror panel 01c is fixed to the third purlin LT3 using the fourth screw LD4, and the fourth fused mirror panel 01d is fixed to the third purlin LT3 using the fifth screw LD5. The gap between the opposing end surfaces of the third fused mirror panel 01c and the fourth fused mirror panel 01d can be filled with insulation material.

[0162] As shown in Figure 12, the roof structure also includes a second waterproof covering sheet 52 extending along the second direction. The second waterproof covering sheet 52 is located outside the fused mirror panel and covers the first recessed area 45 and the second recessed area 46. The second waterproof covering sheet 52 is made of thermoplastic polyolefin, as is the first waterproof layer of the fused mirror panel. The second waterproof covering sheet 52 is connected to the first waterproof layer of the fused mirror panel via hot air welding.

[0163] Roof panels in related technologies require the panels to be assembled layer by layer on-site, resulting in complex on-site construction processes, high installation costs, and reduced construction speed. The fused mirror panels of the disclosed embodiments can be manufactured and assembled in a factory, offering high production efficiency and minimal quality deviation. During on-site construction, only the fused mirror panels need to be assembled into a roof, reducing on-site construction processes, lowering on-site installation costs, and increasing construction speed. This makes it suitable for large-scale operations in a short period of time, enabling projects to be completed ahead of schedule.

[0164] In the roof structure of the embodiment of the present disclosure, the first waterproof covering sheet and the second waterproof covering sheet on the outer surface of the roof are connected to the outer surface of the roof by hot air welding, which has good sealing and no leakage points, thereby improving the waterproof performance of the roof. In addition, the outer surface of the roof is a flat surface, which facilitates the installation of photovoltaic devices above the roof.

[0165] An embodiment of the present disclosure further provides a building, comprising the roof structure of any embodiment of the present disclosure.

[0166] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0167] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0168] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0169] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0170] The disclosure above provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0171] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A fusion mirror plate, characterized in that: include: A waterproof plate layer, comprising a first metal plate layer and a first waterproof layer attached to the outer side of the first metal plate layer along the thickness direction of the fused mirror panel; a second metal plate layer located on an inner side of the waterproof plate layer and arranged opposite to the waterproof plate layer, the second metal plate layer being provided with a plurality of ribs protruding toward the inner side, the ribs extending along a second direction, the plurality of ribs being spaced apart from each other in a first direction, the first direction being perpendicular to the second direction, the ribs being configured to contact the purlins; The thermal insulation layer is sandwiched between the waterproof plate layer and the second metal plate layer.

2. The fusion mirror plate according to claim 1, wherein: The size of the rib in the first direction gradually increases in the thickness direction of the fusion mirror plate from the inside to the outside.

3. The fusion mirror plate according to claim 2, wherein: The plurality of ribs include first ribs located at both ends of the first direction and a plurality of second ribs located between two of the first ribs, wherein a cross section of the second ribs in the first direction is in an inverted trapezoidal shape.

4. The fusion mirror plate according to claim 1, wherein: The height of the rib is 20 mm to 35 mm.

5. The fusion mirror plate according to claim 1, wherein: The material of the first waterproof layer includes thermoplastic polyolefin.

6. The fusion mirror plate according to claim 1, wherein: In the cross section in the first direction, the fused mirror panel further includes a sealing layer sandwiched between the waterproof plate layer and the second metal plate layer and located at both ends of the thermal insulation layer.

7. The fusion mirror plate according to claim 6, wherein: The material of the thermal insulation layer includes rock wool, and the material of the sealing layer includes polyurethane.

8. The fusion mirror plate according to claim 1, wherein: In the cross-section of the first direction, the two end edges of the waterproof board layer are respectively provided with a first shielding edge extending toward the second metal board layer, and the two end edges of the second metal board layer are respectively provided with a second shielding edge extending toward the waterproof board layer. The first shielding edge and the second shielding edge located at the same end correspond to each other, and a preset gap is provided between the first shielding edge and the second shielding edge.

9. The fusion mirror plate according to any one of claims 1 to 8, characterized in that: In the first direction, the fusion mirror plate includes a first end and a second end that are oppositely arranged, the first end includes a first area portion and a second area portion, and the second area portion protrudes relative to the first area portion; the second end includes a third area portion and a fourth area portion, and the third area portion protrudes relative to the fourth area portion, the third area portion matches the first area portion, and the second area portion matches the fourth area portion, so that the first end and the second end of two adjacent fusion mirror plates can be matched and overlapped.

10. The fusion mirror plate according to claim 9, wherein: The first region portion and the second region portion are parallel to the thickness direction of the fusion mirror plate; the third region portion and the fourth region portion are parallel to the thickness direction of the fusion mirror plate.

11. The fusion mirror plate according to claim 9, wherein: The first and third regions are located outside the second and fourth regions, and an outer surface of the third region forms a recessed area relative to an outer surface of the main body of the waterproof board layer.

12. The fusion mirror plate according to claim 9, wherein: An inner side surface of the second region is flush with a lower end surface of the rib.

13. The fusion mirror plate according to claim 9, wherein: The waterproof board layer includes a first main body portion located between the first end portion and the second end portion, the waterproof board layer also includes a first bent portion connected to an edge of the first main body portion facing the first end portion, the first bent portion includes a first bent edge along a thickness direction and a second bent edge along the first direction, the first region portion includes the first bent edge, and the second region portion includes the second bent edge; The second metal sheet layer includes a second main body portion located between the first end portion and the second end portion, the second metal sheet layer also includes a first extension portion connected to the edge of the second main body portion facing the first end portion, the first extension portion is opposite to the second bending edge, and the second area portion also includes the first extension portion.

14. The fusion mirror plate according to claim 13, wherein: The waterproof board layer also includes a first shielding edge, which is connected to the outer edge of the second bent edge; the second metal plate layer also includes a second shielding edge, which is connected to the outer edge of the first extension portion, the first shielding edge corresponds to the second shielding edge, and a preset gap is set between the first shielding edge and the second shielding edge.

15. The fusion mirror plate according to claim 9, wherein: The second metal plate layer includes a second main body portion located between the first end portion and the second end portion, the second metal plate layer also includes a second bent portion connected to an edge of the second main body portion facing the second end portion, the second bent portion includes a third bent edge along the thickness direction and a fourth bent edge along the first direction, the fourth region portion includes the third bent edge, and the third region portion includes the fourth bent edge; The waterproof board layer includes a first main body portion located between the first end portion and the second end portion, and the waterproof board layer also includes a second extension portion connected to the edge of the first main body portion facing the second end portion, the second extension portion is opposite to the fourth bent edge, and the third area also includes the second extension portion.

16. The fusion mirror panel according to claim 15, wherein: The second extension portion is configured to be "-shaped bend, the second extension portion includes a fifth bending edge along the thickness direction and a sixth bending edge along the first direction, and the sixth bending edge is opposite to the fourth bending edge.

17. The fusion mirror panel according to claim 15, wherein: The waterproof board layer also includes a first shielding edge, which is connected to the outer edge of the second extension portion; the second metal plate layer also includes a second shielding edge, which is connected to the outer edge of the fourth bent edge, the first shielding edge corresponds to the second shielding edge, and a preset gap is set between the first shielding edge and the second shielding edge.

18. The fusion mirror panel according to claim 8, 14 or 17, wherein: The fusion mirror panel further includes a blocking strip, which is attached to the outer surfaces of the first shielding edge and the second shielding edge to cover the preset gap, and the blocking strip is made of a heat-insulating material.

19. The fusion mirror plate according to claim 1, wherein: The dimension of the fusion mirror plate in the second direction is greater than that in the first direction.

20. A roof structure, characterized in that: The method comprises a plurality of fused mirror panels according to any one of claims 1 to 19, wherein the plurality of fused mirror panels are spliced with each other in a first direction and a second direction.

21. The roof structure according to claim 20, wherein: In the second direction, the fusion mirror plate includes a third end and a fourth end that are oppositely arranged, and the third end and the fourth end are matching parallel end surfaces; In the second direction, two adjacent fusion mirror panels are respectively a first fusion mirror panel and a second fusion mirror panel, and the third end of the first fusion mirror panel and the fourth end of the second fusion mirror panel are fitted and docked.

22. The roof structure according to claim 21, characterized in that The fitting gap between the third end of the first fused mirror panel and the fourth end of the second fused mirror panel is filled with thermal insulation material.

23. The roof structure according to claim 21, wherein: The roof structure further includes a first waterproof covering sheet located above the fusion mirror panel, wherein the first waterproof covering sheet is arranged along a first direction and covers a fitting gap between the first fusion mirror panel and the second fusion mirror panel.

24. The roof structure according to claim 23, wherein: The material of the first waterproof layer in the fusion mirror panel includes thermoplastic polyolefin, the material of the first waterproof covering sheet includes thermoplastic polyolefin, and the first waterproof covering sheet is connected to the outer surface of the fusion mirror panel by hot air welding.

25. The roof structure according to claim 23, wherein: It also includes a first purlin and a second purlin, the first purlin is located on the lower side of the first fusion mirror panel, the second purlin is located on the lower side of the second fusion mirror panel, the first purlin and the second purlin are both arranged along the first direction, the first purlin and the second purlin are both close to the fitting gap, the first screw passes through the first fusion mirror panel and is fixedly connected to the first purlin, the second screw passes through the second fusion mirror panel and is fixedly connected to the second purlin, and the first waterproof covering sheet covers the first screw and the second screw.

26. The roof structure according to claim 25, characterized in that In the first direction, the fusion mirror plate includes a first end and a second end that are oppositely disposed, the first end including a first area portion and a second area portion, the second area portion protruding relative to the first area portion; the second end including a third area portion and a fourth area portion, the third area portion protruding relative to the fourth area portion, the third area portion matching the first area portion, and the second area portion matching the fourth area portion; In the first direction, the two adjacent fusion mirror panels are the third fusion mirror panel and the fourth fusion mirror panel, the first end of the third fusion mirror panel is arranged opposite to the second end of the fourth fusion mirror panel, the third area portion is overlapped with the second area portion, the first screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the first purlin, and the second screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the second purlin.

27. The roof structure according to claim 26, characterized in that The first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, and the outer surface of the third area portion forms a recessed area relative to the outer surface of the main body of the waterproof board layer. The upper end heads of the first screw and the second screw are both located in the recessed area, and the height of the upper end heads of the first screw and the second screw is less than the depth of the recessed area.

28. A roof structure, characterized in that: The method comprises a plurality of fused mirror panels according to any one of claims 9 to 18, wherein the plurality of fused mirror panels are spliced with each other in a first direction and a second direction.

29. The roof structure according to claim 28, characterized in that In the first direction, two adjacent fusion mirror panels are respectively the third fusion mirror panel and the fourth fusion mirror panel, the first end of the third fusion mirror panel is arranged opposite to the second end of the fourth fusion mirror panel, and the third area portion is overlapped with the second area portion.

30. The roof structure according to claim 29, characterized in that It also includes a third purlin extending along the first direction and located at the lower side of the fusion mirror plate, and a plurality of third screws are arranged along the second direction. The third screws pass through the third area portion and the second area portion and are fixedly connected to the third purlin.

31. The roof structure according to claim 29, wherein: The first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, the outer surface of the third area portion forms a recessed area relative to the outer surface of the main body of the waterproof board layer, and the height of the upper end head of the third screw is less than the depth of the recessed area.

32. The roof structure according to claim 29, wherein: It also includes a second waterproof covering sheet extending along the second direction, the second waterproof covering sheet is located on the outside of the fused mirror panel and covers the third area portion, the material of the second waterproof covering sheet includes thermoplastic polyolefin, the material of the first waterproof layer of the fused mirror panel includes thermoplastic polyolefin, and the second waterproof covering sheet is connected to the first waterproof layer of the fused mirror panel by hot air welding.

33. A building, characterized in that The invention comprises the roof structure according to any one of claims 20 to 32.

Images