Roof laying photovoltaic system with thickened thermal insulation layer

Abstract

The utility model belongs to the technical field of solar photovoltaic, and particularly relates to a roof laying photovoltaic system with a thickened thermal insulation layer, which comprises a U-shaped bolt, a roof outer plate, a photovoltaic assembly and a photovoltaic installation purline mechanism, the photovoltaic installation purline mechanism comprises a primary purline and a secondary purline, the length direction of the primary purline is perpendicular to the length direction of the secondary purline, and the length direction of the secondary purline is perpendicular to that of the U-shaped bolt. The lower end of the primary purline is detachably connected with the original roof purline through a U-shaped bolt, the upper end of the primary purline is detachably connected with the lower end of the secondary purline, the upper end of the roof outer plate is detachably connected with the lower end of the photovoltaic module, and the lower end of the roof outer plate is detachably connected with the upper end of the secondary purline; compared with the prior art, the roof waterproof structure has the advantages that idle roof resources are utilized to the maximum extent, photovoltaic assemblies can be firmly fixed on the ALC plate roof, the roof outer plate enables the roof to be better in waterproof effect and higher in waterproof grade, the service life is greatly prolonged, and the maintenance cost of roof waterproof is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar photovoltaic, and particularly relates to a photovoltaic system laid on a roof with a thickened heat insulation layer. Background Art

[0002] The ALC board is also called autoclaved lightweight aerated concrete. With the large-scale development of current prefabricated buildings, precast components are widely used in new buildings. More and more buildings begin to use precast components. The ALC board precast slab with light weight and good fire resistance is even more widely used. The ALC board has strong constructability, and sawing, cutting, planing and drilling can be carried out on the ALC board.

[0003] In recent years, with the development of solar power generation, the available building roof resources are getting fewer and fewer. The roofs using precast components have less reserved load during design, which affects the later installation of photovoltaic modules. As the available roof resources for development decrease, all roofs where photovoltaic modules may be paved have been included in the development sequence. Therefore, installing photovoltaic modules on ALC board roofs has a broader and broader prospect. However, considering the self-strength of the ALC board and the problem of water leakage after installation, there is an urgent need for a photovoltaic system laid on a roof with a thickened heat insulation layer that is reliably installed and has good water leakage prevention performance. Summary of the Utility Model

[0004] The utility model aims at the above problems and provides a photovoltaic system laid on a roof with a thickened heat insulation layer.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a photovoltaic system laid on a roof with a thickened heat insulation layer, the lower end face of the ALC board is attached to the upper end face of the original roof purlin. The photovoltaic system laid on a roof with a thickened heat insulation layer includes U-shaped bolts, roof outer plates, photovoltaic modules and a photovoltaic installation purlin mechanism. The photovoltaic installation purlin mechanism includes a main purlin and a secondary purlin;

[0006] The length direction of the main purlin is perpendicular to the length direction of the secondary purlin, the length direction of the secondary purlin is parallel to the length direction of the original roof purlin, the lower end of the main purlin is detachably connected to the original roof purlin through a U-shaped bolt, the upper end of the main purlin is detachably connected to the lower end of the secondary purlin, the upper end of the roof outer plate is detachably connected to the lower end of the photovoltaic module, and the lower end of the roof outer plate is detachably connected to the upper end of the secondary purlin.

[0007] Preferably, the main purlin includes a purlin installation bottom plate, purlin side plates and a purlin top rain shield. The planes where the purlin installation bottom plate and the purlin top rain shield are located are both horizontal, the plane where the purlin side plates are located is vertical. The lower end of the purlin side plates is fixedly connected to the purlin installation bottom plate, the upper end of the purlin side plates is fixedly connected to the purlin top rain shield. Installation holes are formed in the purlin installation bottom plate, and the purlin installation bottom plate is detachably connected to the U-shaped bolt through the installation holes.

[0008] Preferably, the main purlin further includes a conical waterproof ring which is coaxial with the mounting hole, and the lower end of the conical waterproof ring is fixedly connected to the upper end face of the purlin mounting base plate.

[0009] Preferably, the main purlin further includes an elastic cushion plate, on which a cushion plate hole is formed. The cushion plate hole is coaxial with the mounting hole, and the upper end face of the elastic cushion plate is attached to the lower end face of the purlin mounting base plate.

[0010] Preferably, the original roof purlin is an I-beam.

[0011] Preferably, the number of the main purlins is multiple, and the number of the secondary purlins is multiple. The multiple main purlins are evenly distributed along the length direction of the secondary purlins, and the multiple secondary purlins are evenly distributed along the length direction of the main purlins.

[0012] Preferably, the roof outer plate is a galvanized aluminum-magnesium roof outer plate.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] (1) Using this roof system can enable the precast slab roof to meet the needs of photovoltaic layout, maximize the utilization of idle roof resources, firmly fix the photovoltaic modules on the ALC board roof, make the waterproof effect of the roof better, with a higher waterproof grade, greatly enhance the service life, and greatly reduce the maintenance cost of roof waterproofing;

[0015] (2) The lower end of the roof outer plate is detachably connected to the upper end of the secondary purlin, and the roof outer plate reduces the influence on roof waterproofing due to opening holes;

[0016] (3) The upper end of the purlin side plate is fixedly connected to the purlin top rain shield, and the purlin top rain shield plays a role in rain shielding. The lower end of the conical waterproof ring is fixedly connected to the upper end face of the purlin mounting base plate, and the conical waterproof ring plays a role in waterproofing and sealing, preventing rainwater from flowing in through the mounting hole and making the rainwater flow out from the purlin mounting base plate;

[0017] (4) The number of secondary purlins is multiple, which is convenient for fixing the roof outer plate, and can transfer the load of the photovoltaic modules to the original roof purlin through multiple secondary purlin components and multiple main purlins, with little extrusion effect on the ALC board;

[0018] (5) The upper end face of the elastic cushion plate is attached to the lower end face of the purlin mounting base plate, and the elastic cushion plate plays a role in pre-tightening and anti-loosening, ensuring a tight fit at the position where the cushion plate hole is formed on the elastic cushion plate, and reducing the possibility of rainwater seeping in between the purlin mounting base plate and the ALC board at the cushion plate hole. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments:

[0020] Figure 1 Isometric view of a photovoltaic system installed on a roof with a thickened thermal insulation layer;

[0021] Figure 2 Front view of a photovoltaic system installed on a roof with a thickened thermal insulation layer;

[0022] Figure 3 Section view of a photovoltaic system installed on a roof with a thickened thermal insulation layer Figure 1 ;

[0023] Figure 4 Section view of a photovoltaic system installed on a roof with a thickened thermal insulation layer Figure 2 ;

[0024] Figure 5 Isometric view of a photovoltaic system installed on a roof with a thickened thermal insulation layer after removing the outer roof panel and photovoltaic modules;

[0025] Figure 6 Isometric view of the main purlin of a photovoltaic system installed on a roof with a thickened thermal insulation layer in Embodiment 1;

[0026] Figure 7 For Figure 6 Local enlarged schematic view at A in;

[0027] Figure 8 Isometric view of the main purlin of a photovoltaic system installed on a roof with a thickened thermal insulation layer in Embodiment 2;

[0028] Figure 9 For Figure 8 Local enlarged schematic view at B in.

[0029] Reference numerals:

[0030] 1 - ALC board;

[0031] 2 - U-shaped bolt;

[0032] 3 - Original roof purlin;

[0033] 4 - Outer roof panel;

[0034] 5 - Photovoltaic module;

[0035] 6 - Photovoltaic installation purlin mechanism, 61 - Main purlin, 62 - Secondary purlin, 63 - Purlin installation bottom plate, 64 - Purlin side plate, 65 - Purlin top rain shield, 66 - Installation hole, 67 - Conical waterproof ring, 68 - Elastic cushion plate. Detailed implementation manners

[0036] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0038] Example 1

[0039] Combine the following Figures 1 to 7 Specific instructions for laying photovoltaic systems on roofs with thickened insulation layers, such as Figure 1 and Figure 2 As shown, a photovoltaic system is installed on the roof with a thickened insulation layer, the lower end surface of the ALC board 1 is fitted with the upper end surface of the original roof purlin 3, and the photovoltaic system is installed on the roof with a thickened insulation layer. It includes U-bolts 2, roof outer panels 4, photovoltaic modules 5 and photovoltaic installation purlin mechanisms 6, and the photovoltaic installation purlin mechanisms 6 include main purlins 61 and secondary purlins 62.

[0040] like Figure 3 and Figure 4 As shown, the length direction of the main purlin 61 is perpendicular to the length direction of the secondary purlin 62, the length direction of the secondary purlin 62 is parallel to the length direction of the original roof purlin 3, the lower end of the main purlin 61 is detachably connected to the original roof purlin 3 by the U-bolt 2, the upper end of the main purlin 61 is detachably connected to the lower end of the secondary purlin 62, the upper end of the roof outer panel 4 is detachably connected to the lower end of the photovoltaic module 5, and the lower end of the roof outer panel 4 is detachably connected to the upper end of the secondary purlin 62.

[0041] like Figure 6 and Figure 7 As shown, the main purlin 61 includes a purlin mounting base plate 63, a purlin side plate 64 and a purlin top rain shield 65. The planes where the purlin mounting base plate 63 and the purlin top rain shield 65 are located are both horizontal, and the plane where the purlin side plate 64 is located is vertical. The lower end of the purlin side plate 64 is fixedly connected to the purlin mounting base plate 63, and the upper end of the purlin side plate 64 is fixedly connected to the purlin top rain shield 65. The purlin mounting base plate 63 is provided with mounting holes 66, and the purlin mounting base plate 63 is detachably connected to the U-bolts 2 through the mounting holes 66.

[0042] like Figure 5 As shown, the original roof purlin 3 is an I-beam.

[0043] like Figure 5 As shown, there are multiple main purlins 61 and multiple secondary purlins 62 . The multiple main purlins 61 are evenly distributed along the length direction of the secondary purlins 62 , and the multiple secondary purlins 62 are evenly distributed along the length direction of the main purlins 61 .

[0044] The roof outer panel 4 is a galvanized aluminum-magnesium roof outer panel.

[0045] Working steps for laying a photovoltaic system on a roof with a thickened thermal insulation layer:

[0046] Step 1: Fit the lower end of the main purlin 61 to the upper surface of the ALC board 1.

[0047] Step 2: Drill holes at corresponding positions on the ALC board 1. The U-shaped bolt 2 passes through the ALC board 1, and the original roof purlin 3 is fixedly connected to the main purlin 61 through the U-shaped bolt 2.

[0048] Step 3: Place multiple secondary purlins 62 above the main purlin 61. Adjust the length direction of the main purlin 61 to be perpendicular to the length direction of the secondary purlins 62. The lower ends of the multiple secondary purlins 62 are all detachably connected to the main purlin 61.

[0049] Step 4: Detachably connect the roof outer panel 4 to the upper ends of the secondary purlins 62.

[0050] Step 5: Detachably connect the photovoltaic module 5 above the roof outer panel 4.

[0051] Embodiment 2

[0052] The difference between this embodiment and Embodiment 1 is that as Figure 8 and Figure 9 shown, the main purlin 61 further includes a conical waterproof ring 67. The conical waterproof ring 67 is coaxial with the mounting hole 66, and the lower end of the conical waterproof ring 67 is fixedly connected to the upper surface of the purlin mounting base plate 63.

[0053] As Figure 8 and Figure 9 shown, the main purlin 61 further includes an elastic cushion plate 68. The elastic cushion plate 68 is provided with a cushion plate hole. The cushion plate hole is coaxial with the mounting hole 66, and the upper surface of the elastic cushion plate 68 is in contact with the lower surface of the purlin mounting base plate 63.

[0054] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A photovoltaic system installed on a roof with a thickened insulation layer, wherein the lower end surface of the ALC panel (1) is bonded to the upper end surface of the original roof purlin (3), characterized in that: The photovoltaic system installed on the roof with a thickened thermal insulation layer comprises U-shaped bolts (2), a roof outer plate (4), a photovoltaic module (5) and a photovoltaic installation purlin mechanism (6), wherein the photovoltaic installation purlin mechanism (6) comprises a main purlin (61) and a secondary purlin (62); The length direction of the main purlin (61) is perpendicular to the length direction of the secondary purlin (62), and the length direction of the secondary purlin (62) is parallel to the length direction of the original roof purlin (3). The lower end of the main purlin (61) is detachably connected to the original roof purlin (3) via a U-shaped bolt (2), the upper end of the main purlin (61) is detachably connected to the lower end of the secondary purlin (62), the upper end of the roof outer panel (4) is detachably connected to the lower end of the photovoltaic module (5), and the lower end of the roof outer panel (4) is detachably connected to the upper end of the secondary purlin (62).

2. A photovoltaic system installed on a roof with a thickened insulation layer according to claim 1, characterized in that: The main purlin (61) comprises a purlin mounting base plate (63), a purlin side plate (64) and a purlin top rain shield (65); the planes where the purlin mounting base plate (63) and the purlin top rain shield (65) are located are both horizontal; the plane where the purlin side plate (64) is located is vertical; the lower end of the purlin side plate (64) is fixedly connected to the purlin mounting base plate (63); the upper end of the purlin side plate (64) is fixedly connected to the purlin top rain shield (65); the purlin mounting base plate (63) is provided with mounting holes (66); the purlin mounting base plate (63) is detachably connected to the U-shaped bolts (2) through the mounting holes (66).

3. A photovoltaic system installed on a roof with a thickened insulation layer according to claim 2, characterized in that: The main purlin (61) further comprises a conical waterproof ring (67), the conical waterproof ring (67) being coaxial with the mounting hole (66), and the lower end of the conical waterproof ring (67) being fixedly connected to the upper end surface of the purlin mounting base plate (63).

4. A photovoltaic system installed on a roof with a thickened insulation layer according to claim 3, characterized in that: The main purlin (61) further comprises an elastic pad (68), a pad hole being formed on the elastic pad (68), the pad hole being coaxial with the mounting hole (66), and the upper end surface of the elastic pad (68) being in contact with the lower end surface of the purlin mounting base plate (63).

5. The photovoltaic system installed on the roof with a thickened insulation layer according to claim 1, characterized in that: The original roof purlin (3) is an I-beam.

6. The photovoltaic system installed on the roof with a thickened insulation layer according to claim 1, characterized in that: The number of the main purlins (61) is multiple, the number of the secondary purlins (62) is multiple, the multiple main purlins (61) are evenly distributed along the length direction of the secondary purlins (62), and the multiple secondary purlins (62) are evenly distributed along the length direction of the main purlins (61).

7. The photovoltaic system installed on the roof with a thickened insulation layer according to claim 1, characterized in that: The roof outer panel (4) is a galvanized aluminum-magnesium roof outer panel.

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