Bracket-free building integrated photovoltaics (BIPV) roof structure

Abstract

The utility model relates to the technical field of BIPV (building integrated photovoltaics), in particular to a support-free BIPV roof structure, which comprises a plurality of support strips and a plurality of photovoltaic modules. The supporting strips are perpendicular to the purlines, the multiple supporting strips are placed on the purlines in parallel, the supporting strips are provided with multiple clamping grooves in the length direction, and each clamping groove is formed between every two adjacent purlines; the photovoltaic assemblies are fixed through purlines and supporting strips, the two sides, in the width direction, of each photovoltaic assembly are detachably connected with the purlines, the two sides, in the length direction, of each photovoltaic assembly are clamped in the clamping grooves of the two adjacent supporting strips respectively, and a sealing piece is arranged between the two adjacent photovoltaic assemblies. The sealing member is used for sealing a gap between two adjacent photovoltaic modules. The waterproof structure is convenient to install and good in waterproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of BIPV, and in particular to a BIPV roof structure without a support. Background Art

[0002] Building integrated photovoltaics (BIPV) is a technology that integrates solar power generation (photovoltaic) products into buildings. Photovoltaic panels can be integrated with the building's exterior as part of the building, without the need for additional open space or space, saving land resources and improving the building's aesthetics. In addition, BIPV has long-term and stable power generation performance, can provide buildings with continuous clean energy, and is beneficial to environmental protection.

[0003] The Chinese invention patent application with application publication number CN111608327A discloses a roof structure of a BIPV water guide system, in which a bottom water guide groove and a transverse water guide groove are installed on the purlins, and the bottom water guide groove and the transverse water guide groove are used to fix the photovoltaic panel and can be used for drainage. The roof structure of the BIPV water guide system is equivalent to installing a bracket (i.e., a bottom water guide groove and a transverse water guide groove) above the purlins, and fixing the photovoltaic panel on the purlins through the bracket. The use cost of the bracket is high, and the construction workload of installing the bracket is increased. Utility Model Content

[0004] The purpose of the utility model is to provide a bracket-free BIPV roof structure with good waterproof effect in view of the defects of the prior art.

[0005] In order to solve the above technical problems, the utility model provides a bracket-free BIPV roof structure, including a plurality of support bars and a plurality of photovoltaic modules;

[0006] The support bar is perpendicular to the purlin, a plurality of the support bars are placed in parallel on the purlin, a plurality of slots are arranged along the length direction of the support bar, and each of the slots is arranged between two adjacent purlins;

[0007] The photovoltaic components are fixed by purlins and support bars. The photovoltaic components are detachably connected to the purlins on both sides along the width direction. The photovoltaic components are respectively stuck in the slots of two adjacent support bars on both sides along the length direction. A seal is arranged between two adjacent photovoltaic components, and the seal is used to seal the gap between the two adjacent photovoltaic components.

[0008] The utility model realizes sealing of the gap between photovoltaic modules by arranging a sealing member between two adjacent photovoltaic modules; by arranging a support bar with a slot, the short side of the photovoltaic module is stuck in the slot of the support bar, and the four sides of each photovoltaic module are mutually engaged with four photovoltaic modules through the slot, thereby avoiding horizontal movement of the photovoltaic module and ensuring the sealing effect of the sealing member between two adjacent photovoltaic modules; in addition, the photovoltaic module can be detachably connected to the purlin by bolts, and when the photovoltaic module is fixed to the purlin, the photovoltaic module will press the support bar tightly against the purlin, thereby fixing the support bar.

[0009] Furthermore, the sealing member includes a first sealant, a second sealant, and a sealing strip arranged between the first sealant and the second sealant.

[0010] The utility model provides two layers of sealant and a sealing strip between the two layers of sealant, which, on the one hand, improves the sealing effect, and on the other hand, the first sealant can protect the sealing strip, slow down the aging of the sealing strip, and increase the service life of the sealing strip.

[0011] Furthermore, the first sealant is arranged on the outer side of the sealing strip, and the top of the cross section of the first sealant is in a concave arc shape.

[0012] The utility model forms a water guide groove by setting the top of the cross section of the first sealant to be a concave arc, so that rainwater can flow away along the top of the first sealant.

[0013] Furthermore, the photovoltaic assembly includes a photovoltaic panel and a frame fixed to the edge of the photovoltaic panel, the photovoltaic panel and the frame are connected by a third sealant, the frame includes a long frame and a short frame, the long frame is arranged on both sides of the photovoltaic panel along the width direction, the long frame is detachably connected to the purlin, the short frame is arranged on both sides of the photovoltaic panel along the length direction, and the short frames on opposite sides of two adjacent photovoltaic assemblies are stuck in the same slot.

[0014] The short frames of the opposite sides of two adjacent photovoltaic modules of the utility model are clamped in the same clamping groove, so that the movement of one photovoltaic module is restricted by the other photovoltaic module, thereby improving the integrity of the structure and ensuring the sealing effect of the seal.

[0015] Furthermore, the sealing member is arranged between two adjacent short frames and between two adjacent long frames, and the short frames are against the inner wall of the card slot.

[0016] The utility model realizes mutual restriction of two adjacent photovoltaic components by abutting the short frame against the inner wall of the card slot.

[0017] Furthermore, a plurality of mounting holes are provided on the long frame, and the long frame is detachably connected to the purlin by bolts passing through the mounting holes.

[0018] The utility model realizes the detachable connection of the photovoltaic components through bolts.

[0019] Furthermore, the support bar includes a bottom plate and multiple groups of side plates, the multiple groups of side plates are arranged at intervals along the length direction of the bottom plate, the spacing between two adjacent groups of side plates is equal to the width of the purlin, each group of side plates includes two baffles, and the two baffles are vertically arranged on both sides of the bottom plate to form a slot.

[0020] Furthermore, the bottom plate and the baffle are an integrated structure.

[0021] The beneficial effects of the utility model are as follows: the utility model does not need to set up a bracket, and only needs to place a support bar with a slot on the purlin, and the two sides of the photovoltaic component are stuck in the slot, and the photovoltaic component and the purlin are fixed by bolts, so that the support bar is fixed on the purlin, and the photovoltaic component can be fixed by the bolts and limited by the adjacent photovoltaic components, thereby avoiding the movement of the photovoltaic component, and the adjacent photovoltaic components are sealed and connected by seals, so that the roof structure has better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a layout diagram of the support bar of the utility model;

[0024] Figure 3 for Figure 1 Middle AA section;

[0025] Figure 4 This is a schematic diagram of the structure of the support bar of the utility model;

[0026] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0027] Figure 6 for Figure 1 Middle CC cross section;

[0028] Figure 7 for Figure 1 Enlarged view of point D in the middle.

[0029] Figure numerals: purlin 1; support bar 2; baffle 3; slot 4; photovoltaic module 5; photovoltaic panel 6; long frame 7; short frame 8; third sealant 9; first sealant 10; second sealant 11; sealing strip 12; bottom plate 13. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] like Figure 1 As shown, this embodiment provides a BIPV roof structure without a support, including a plurality of support bars 2 and a plurality of photovoltaic modules 5, such as Figure 2 As shown, the support bars 2 are arranged perpendicular to the purlins 1, and a plurality of support bars 2 are placed in parallel on the purlins 1. Two adjacent support bars 2 and two adjacent purlins 1 can form a rectangular support structure, such as Figure 1 As shown, the photovoltaic module 5 is fixed on a rectangular support structure composed of a support bar 2 and a purlin 1. Figure 1 Only one photovoltaic module 5 and a partial structure of eight surrounding photovoltaic modules 5 are shown.

[0032] like Figure 3 , 5 As shown, the photovoltaic assembly 5 includes a photovoltaic panel 6 and a frame fixed to the edge of the photovoltaic panel 6. The frame is rectangular as a whole. The photovoltaic panel 6 and the frame are connected by a third sealant 9. The frame includes two parallel long frames 7 and two parallel short frames 8. The width of the photovoltaic assembly 5 is smaller than the center distance between two adjacent purlins 1, so that the photovoltaic panel 6 can be placed on the purlin 1 through the long frame 7. A plurality of mounting holes are provided on the long frame 7. The long frame 7 is detachably connected to the purlin 1 by bolts passing through the mounting holes. A seal is provided between the long frames 7 of two adjacent photovoltaic assemblies 5 to seal the gap between the two adjacent photovoltaic assemblies 5.

[0033] The sealing member includes a first sealant 10, a second sealant 11 and a sealing strip 12 arranged between the first sealant 10 and the second sealant 11. The sealing effect is improved by a three-layer sealing method; the first sealant 10 is arranged on the outside of the sealing strip 12, and the top of the cross section of the first sealant 10 is a concave arc, which is convenient for drainage.

[0034] like Figure 4 As shown, the support bar 2 includes a bottom plate 13 and multiple sets of side plates, which are arranged at intervals along the length direction of the bottom plate 13, and the spacing between two adjacent sets of side plates is equal to the width of the purlin 1, so that the side plates will not interfere with the frame of the photovoltaic module 5, as shown in FIG. Figure 5 Each set of side panels includes two baffles 3, which are vertically arranged on both sides of the bottom plate 13 along the length direction, and the bottom plate 13 and the two baffles 3 form a slot 4. In this embodiment, the bottom plate 13 and the baffles 3 are an integrated structure.

[0035] like Figure 6As shown, the center distance between two adjacent support bars 2 is greater than the length of the photovoltaic module 5, so that the short frames 8 of the two adjacent photovoltaic modules 5 can be respectively clamped on both sides of the card slot 4, and a seal is also provided between the short frames 8 of the two adjacent photovoltaic modules 5, such as Figure 7 As shown, the photovoltaic module 5 is sealed on all sides by a seal. Two adjacent short frames 8 are against the inner wall of the slot 4 and pressed on the bottom of the slot 4. It can be understood that when one of the photovoltaic modules 5 moves horizontally, due to the existence of the slot 4, the adjacent photovoltaic modules 5 will play a role of limiting, thereby improving the integrity of the entire roof structure; in addition, since the short frame 8 of the photovoltaic module 5 is pressed on the bottom of the slot 4, and the bottom plate 13 of the support bar 2 has a certain thickness, when the short frame 8 of the photovoltaic module 5 is fastened to the purlin 1 by bolts, the short frame 8 of the photovoltaic module 5 will press the support bar 2 tightly against the purlin 1, thereby fixing the support bar 2.

[0036] The BIPV roof structure of this embodiment does not require the use of a bracket, and the photovoltaic components 5 can be installed only through a plurality of support bars 2. In addition, the support bars 2 do not need to be fixed separately, so the installation is convenient and the cost is low. The three-layer structure of the seal between adjacent photovoltaic components 5 improves the sealing effect and also increases the service life of the sealing strip 12.

[0037] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A bracketless BIPV roof structure, characterized in that: It comprises a plurality of support bars (2) and a plurality of photovoltaic modules (5); The support bar (2) is perpendicular to the purlin (1), a plurality of the support bars (2) are placed in parallel on the purlin (1), a plurality of slots (4) are provided on the support bar (2) along the length direction, and each of the slots (4) is arranged between two adjacent purlins (1); The photovoltaic assembly (5) is fixed by means of a purlin (1) and a support bar (2); the photovoltaic assembly (5) is detachably connected to the purlin (1) on both sides along the width direction; the photovoltaic assembly (5) is respectively clamped in the clamping grooves (4) of two adjacent support bars (2) on both sides along the length direction; a sealing member is provided between two adjacent photovoltaic assemblies (5); the sealing member is used to seal the gap between the two adjacent photovoltaic assemblies (5).

2. The bracket-free BIPV roof structure according to claim 1 is characterized in that: The sealing member comprises a first sealing glue (10), a second sealing glue (11), and a sealing strip (12) arranged between the first sealing glue (10) and the second sealing glue (11).

3. The bracket-free BIPV roof structure according to claim 2 is characterized in that: The first sealant (10) is arranged on the outside of the sealing strip (12), and the top of the cross section of the first sealant (10) is in a concave arc shape.

4. The bracket-free BIPV roof structure according to claim 1 is characterized in that: The photovoltaic assembly (5) comprises a photovoltaic panel (6) and a frame fixed to the edge of the photovoltaic panel (6); the photovoltaic panel (6) and the frame are connected via a third sealant (9); the frame comprises a long frame (7) and a short frame (8); the long frame (7) is arranged on both sides of the photovoltaic panel (6) along the width direction; the long frame (7) is detachably connected to the purlin (1); the short frame (8) is arranged on both sides of the photovoltaic panel (6) along the length direction; and the short frames (8) on opposite sides of two adjacent photovoltaic assemblies (5) are clamped in the same clamping slot (4).

5. The bracket-free BIPV roof structure according to claim 4 is characterized in that: The sealing member is arranged between two adjacent short frames (8) and between two adjacent long frames (7), and the short frames (8) are against the inner wall of the card slot (4).

6. The bracket-free BIPV roof structure according to claim 4, characterized in that: A plurality of mounting holes are provided on the long frame (7), and the long frame (7) is detachably connected to the purlin (1) via bolts passing through the mounting holes.

7. The bracket-free BIPV roof structure according to claim 1, characterized in that: The support bar (2) comprises a bottom plate (13) and a plurality of groups of side plates, wherein the plurality of groups of side plates are arranged at intervals along the length direction of the bottom plate (13), and the spacing between two adjacent groups of side plates is equal to the width of the purlin (1), and each group of side plates comprises two baffles (3), and the two baffles (3) are vertically arranged on both sides of the bottom plate (13), thereby forming a card slot (4).

8. The bracket-free BIPV roof structure according to claim 7, characterized in that: The bottom plate (13) and the baffle plate (3) are an integrated structure.

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