Roof distributed photovoltaic module support mounting structure

Abstract

The utility model discloses a roof distributed photovoltaic assembly support mounting structure, which belongs to the technical field of photovoltaic assembly mounting and comprises a short column support, a support bottom plate, a bonding layer and a wind-suction-resistant fixing beam. A support base plate is fixed at the lower end of the short column support, a bonding layer is arranged at the lower end of the support base plate, and the wind suction resistant fixing beam is arranged on the support base plate and fixedly connected with the short column support. A structural bonding process is adopted to directly fix the support bottom plate, so that physical damage of traditional drilling to a roof structural plate is thoroughly avoided, and the damage risk of a roof waterproof layer and long-term structural potential safety hazards are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic module installation technical field, specifically relates to a roof distributed photovoltaic module support mounting structure. BACKGROUND

[0002] From 2015 to 2024, the photovoltaic industry has experienced ten years of vigorous development, with frequent technology iterations, showing a rapidly changing situation. In particular, after 2024, the n-type technology completely replaces the p-type technology, making the competition among the three mainstream technology paths of n-TOPCon, heterojunction and BC cell become the industry focus. However, in the process of pursuing more efficient use of new photovoltaic modules to improve power generation efficiency, the existing photovoltaic system installation technology faces significant limitations.

[0003] In practical applications, the diversity of roof conditions brings many challenges to installation. In particular, for specific types of roofs such as prefabricated plate slope roofs, due to their unique design features and construction requirements, such as the presence of waterproof layers such as waterproofing membranes, the installation bracket cannot be fixed and installed by drilling and adding expansion bolts or chemical anchors for photovoltaic support column feet, making it difficult to implement the traditional fixed bolt installation method. Direct drilling not only may damage the waterproof layer and penetrate the prefabricated plate layer, resulting in damage to the integrity of the roof waterproof system, safety hazards such as leakage, damage to the concrete prefabricated plate structure, and reduction of the safety of the building body structure, but also increases the complexity of the installation of photovoltaic modules, limiting the effective deployment of photovoltaic systems on such roofs.

[0004] This technical problem is particularly prominent in the distributed photovoltaic application field, and a large number of idle prefabricated plate slope roofs and other roof resources have not been fully utilized, becoming an important bottleneck restricting the further popularization and widespread application of photovoltaic technology. To solve this technical problem, a photovoltaic module installation structure suitable for specific roof types needs to be developed. SUMMARY

[0005] To solve the problems of the prior art, the utility model provides a roof distributed photovoltaic module support mounting structure, which realizes lossless installation and is suitable for the installation of photovoltaic supports on roofs.

[0006] To achieve the above purpose, the roof distributed photovoltaic module support mounting structure according to the utility model is provided, which comprises a short column support, a support bottom plate, an adhesive layer and a wind-resistant suction fixing beam, the short column support is fixed with the support bottom plate at the lower end, the support bottom plate is provided with the adhesive layer at the lower end, and the wind-resistant suction fixing beam is arranged on the support bottom plate and fixedly connected with the short column support.

[0007] Further, the end of the wind-resistant suction fixing beam is fixedly connected with the building on which the photovoltaic module support is installed.

[0008] Further, the cross section of the short column support comprises a first segment, a second segment, a third segment, a fourth segment and a fifth segment connected in sequence; the structure formed by the first segment and the second segment is symmetrical to the structure formed by the fourth segment and the fifth segment; an opening is formed between the free end of the first segment and the free end of the fifth segment.

[0009] Further, the first segment and the fifth segment are arc units and are connected to the second segment and the fourth segment, respectively, in a smooth transition.

[0010] Further, the adhesive layer completely covers the lower surface of the support bottom plate.

[0011] Further, the side surface of the wind suction resistant fixing beam is welded to the side surface of the short column support.

[0012] Further, the short column support is made of hollow steel.

[0013] Further, the support bottom plate is a steel plate.

[0014] Further, the adhesive layer is an AB two-component epoxy structural adhesive.

[0015] Further, the wind suction resistant fixing beam is made of angle steel.

[0016] Compared with the prior art, the utility model has at least the following beneficial technical effects:

[0017] 1) non-destructive installation: the structural adhesive layer is used to directly fix the support bottom plate on the roof, completely avoiding the physical damage of traditional drilling on the roof structure plate, significantly reducing the damage risk of the roof waterproof layer and the long-term structural safety hazard.

[0018] 2) roof adaptability breakthrough: the adhesive support technology breaks through the traditional roof selection limit, provides a high reliability solution for sensitive roofs such as prefabricated plate slope roofs and lightweight concrete, promotes the deep integration of photovoltaic technology and roof structure, promotes the distributed photovoltaic installation capacity to increase by 15%-20%, and the overall project construction cost to decrease by 10%-15%. Realize the wide popularization and efficient application of photovoltaic technology.

[0019] 3) process efficiency improvement: through the design of the innovative column foot plate adhesive layer, the drilling operation amount is reduced, the construction time is compressed by 30% and the installation component cost is reduced by 25% at the same time, which significantly improves the economy of the photovoltaic project.

[0020] 4) The cross section of the short column support is symmetrical, so that external wind load, snow load and other loads can be evenly transmitted along the symmetrical axis, avoiding unilateral stress concentration and significantly reducing the risk of local deformation; the arc-shaped end can disperse the torsional force through the hook-shaped curvature when bearing torque, improving the shear and bending resistance of the connecting node and the stability of the entire structure; the opening formed by the hook-shaped end can absorb the dimensional changes caused by manufacturing tolerance or thermal expansion and contraction, avoid assembly stress caused by slight deviation, and achieve lightweight. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A roof distributed photovoltaic module support mounting structure schematic view is provided in the utility model.

[0022] Figure 2 A roof distributed photovoltaic module support mounting structure plan view is provided in the utility model.

[0023] Figure 3 A cross section of the short column support.

[0024] In the drawings: 1, short column support; 2, support bottom plate; 3, adhesive layer; 4, wind-resistant suction fixing beam; 11, first section; 12, second section; 13, third section; 14, fourth section; 15, fifth section. DETAILED DESCRIPTION

[0025] The utility model will be described in detail below in combination with the drawings and specific embodiments.

[0026] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0027] It is to be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where, when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like as used herein refer to the orientation or position of an item as shown in the drawings and are used for convenience in describing the present application and its attachments only and are not a limitation as to the position, orientation, or use of the application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0029] The technical scheme considers installing photovoltaic components from the prefabricated plate slope roof, and the slope roof waterproof roll material is stacked and laid. If the photovoltaic support is fixed by punching, the prefabricated roof plate will be inevitably punched, the roof structure is damaged, and the original house structure installation is seriously affected. In order to realize the non-punching type column foot fixing, the whole roof waterproof layer protection, and the structure safety guarantee, the non-punching type column foot fixing structure is provided, the support bottom plate is installed by using structural glue, and the photovoltaic component installation is performed on the fixed inclined beam.

[0030] Embodiment 1

[0031] With reference to Figure 1 and Figure 2 A roof distributed photovoltaic component support installation structure, comprising a short column support 1, a support bottom plate 2, an adhesive layer 3, and a wind-resistant suction fixing beam 4.

[0032] The lower end of the short column support 1 is welded with a 200*200*6mm steel plate as the support bottom plate 2. The bottom of the support bottom plate 2 is provided with the adhesive layer 3. During installation, the adhesive layer 3 is effectively pasted with the roof, and the pasting area is consistent with the area of the support bottom plate 2. The adhesive strength meets the wind resistance requirement. In order to ensure that the local adhesive point is not in the ideal state due to the adhesive surface, a wind-resistant suction fixing beam 4 is specially added. The wind-resistant suction fixing beam 4 is welded with the side surface of the short column support 1 and extends horizontally. The two ends of the wind-resistant suction fixing beam 4 are fixed on the eave wall body on both sides of the roof ridge where the photovoltaic component is installed through the expansion bolts and are pressed on the support bottom plate 2. Each wind-resistant suction fixing beam 4 is in abutment with 3-4 adjacent support bottom plates 2 to form a continuous wind-resistant pull system.

[0033] Preferably, the short column support 1 is a square steel pipe.

[0034] Preferably, the adhesive layer 3 is made of AB two-component epoxy structural adhesive.

[0035] Preferably, the wind-resistant fixing beam 4 is made of angle steel.

[0036] Example 2

[0037] Reference Figure 1 and Figure 2 A rooftop distributed photovoltaic module support installation structure includes a short column support 1, a support base plate 2, an adhesive layer 3, and a wind-resistant fixing beam 4.

[0038] The support base plate 2 is made of 6mm thick steel plate. The center of the upper end of the support base plate 2 is welded to the lower end of the short column support 1. An adhesive layer 3 is fixed to the bottom of the support base plate 2, completely covering the lower surface of the support base plate 2. The adhesive layer 3 is made of steel bonding adhesive, and the bonding strength meets the wind resistance requirements. A wind-resistant suction fixing beam 4 is provided on the support base plate 2. The wind-resistant suction fixing beam 4 is fixed to the side of the eaves wall of the roof ridge, and the side of the wind-resistant suction fixing beam 4 is welded to the side of the short column support 1.

[0039] Reference Figure 3 The cross-section of the short column support 1 comprises a first segment 11, a second segment 12, a third segment 13, a fourth segment 14, and a fifth segment 15 connected sequentially. The composite structure formed by the first segment 11 and the second segment 12 is mirror-symmetrical to the composite structure formed by the fourth segment 14 and the fifth segment 15, with the plane of symmetry being a vertical plane passing through the geometric centerline. Furthermore, the first segment 11 is symmetrical to the fifth segment 15, and the second segment 12 is symmetrical to the fourth segment 14. Both the first segment 11 and the fifth segment 15 are arc-shaped elements, which smoothly transition to and connect with the second segment 12 and the fourth segment 14, respectively. The free ends of the first segment 11 and the fifth segment 15 form an open structure with a constant spacing. The overall cross-sectional profile presents a centrally symmetrical open annular structure.

[0040] Example 3

[0041] This embodiment provides a method for installing photovoltaic module brackets using the method described in Embodiment 1. The photovoltaic bracket foundation in this solution employs structural steel-bonded adhesive bonding technology, directly bonding high-strength steel plates to the precast roof slabs using steel-bonded adhesive, replacing the traditional drilling and anchoring method and achieving non-destructive installation. This includes:

[0042] 1) Base surface pretreatment: accurately locate the installation position of the support base plate 2, and partially cut off the waterproof membrane; perform fine treatment on the surface of the precast roof slab to ensure that the base surface is clean, solid, and meets the requirements of optimal bonding strength.

[0043] 2) High-precision bonding construction: AB two-component epoxy structural adhesive is applied evenly to the bonding surface of the support base plate 2, forming an adhesive layer 3 on the lower end surface of the support base plate 2; the support base plate 2 is quickly positioned and pressed together to ensure that the adhesive layer 3 is dense and free of voids; the verticality of the short column support 1 is adjusted simultaneously (error ≤ 2°), and a high-strength structural connection is formed after curing.

[0044] 3) After the fixed adhesive support base plate 2 is completed, add a wind-resistant suction fixing beam 4 to each support base plate 2, and weld the suction fixing beam 4 to the short column support 1, and fix both ends to the eaves walls on both sides of the roof ridge. To avoid unevenness of the local support base plate 2 which may cause weak bonding, a secondary protective beam is added.

[0045] 4) Install and fix the photovoltaic bracket column to the short column support 1 in the photovoltaic module installation structure.

[0046] This support system solution is entirely new. Fundamentally different from traditional foundation slab fixing and other conventional installation methods, it replaces the structural drilling-based roof installation method, avoiding roof drilling, eliminating damage to the waterproofing layer, and preventing structural safety hazards. It utilizes a new type of support structure that is structurally stable, easy to construct, and more adaptable to various roof types, including precast slab pitched roofs and lightweight concrete roofs. It breaks through the limitations of traditional support system installation, reduces construction steps, lowers labor and material costs, and shortens project cycles. If this support system solution can be widely adopted, it will undoubtedly attract more projects in distributed photovoltaic development.

[0047] The term "constituting of" in describing a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, parts, or steps herein also contemplates embodiments that are essentially composed of such elements, components, parts, or steps. The use of the term "may" herein is intended to indicate that any described attribute included by "may" is optional.

[0048] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0049] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed utility model subject matter.

Claims

1. A roof distributed photovoltaic module support mounting structure, characterized by, The utility model relates to a short column support (1), support bottom plate (2), adhesive layer (3) and wind suction resisting fixed beam (4) are included, the short column support (1) lower end is fixed with support bottom plate (2), the support bottom plate (2) lower end is provided with adhesive layer (3), and wind suction resisting fixed beam (4) is set up on support bottom plate (2) and is fixedly connected with short column support (1).

2. A roof top distributed photovoltaic module support mounting structure as claimed in claim 1, wherein, In use, the end of the wind suction resisting fixed beam (4) is fixedly connected with the building on which the photovoltaic module support is installed.

3. The mounting structure for a roof distributed photovoltaic module support according to claim 1, wherein The cross section of the short column support (1) comprises a first segment (11), a second segment (12), a third segment (13), a fourth segment (14) and a fifth segment (15) connected in sequence; the structure formed by the first segment (11) and the second segment (12) is symmetrical to the structure formed by the fourth segment (14) and the fifth segment (15); an opening is formed between the free end of the first segment (11) and the free end of the fifth segment (15).

4. The mounting structure for a roof distributed photovoltaic module support according to claim 3, wherein The first segment (11) and the fifth segment (15) are arc units and are smoothly and transitionally connected with the second segment (12) and the fourth segment (14) respectively.

5. The mounting structure for a roof distributed photovoltaic module support according to claim 1, wherein The adhesive layer (3) completely covers the lower surface of the support bottom plate (2).

6. The mounting structure for a roof-top distributed photovoltaic module assembly of claim 1, wherein, The side surface of the wind suction resisting fixed beam (4) is welded with the side surface of the short column support (1).

7. The mounting structure for a roof distributed photovoltaic module support according to claim 1, wherein The short column support (1) is made of hollow steel.

8. The mounting structure for a roof distributed photovoltaic module support according to claim 1, wherein The support bottom plate (2) is a steel plate.

9. The mounting structure for a roof top distributed photovoltaic module support according to claim 1, wherein The adhesive layer (3) is AB two-component epoxy structural adhesive.

10. The mounting structure for a roof-top distributed photovoltaic module assembly of claim 1, wherein, The wind suction resisting fixed beam (4) is made of angle steel.

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