Stand-column-free photovoltaic module support

Abstract

The utility model discloses a photovoltaic module support without a stand column, which comprises a steel keel layer used for fixing a photovoltaic module and a plurality of supporting steel frames arranged below the steel keel layer and used for supporting, and each supporting steel frame comprises a front inclined strut, a rear inclined strut and a supporting beam, the front inclined strut, the rear inclined strut and the supporting beam serve as three sides to form a triangular supporting structure, the steel keel layer is installed on the supporting beam, the supporting beam is arranged in the inclination direction of the photovoltaic module, one end of the front inclined strut and one end of the rear inclined strut are connected with the supporting beam, and the other end of the front inclined strut and the other end of the rear inclined strut are connected with a support arranged on a fixed foundation. The inclination angle of the supporting beam is controlled through the front inclined strut and the rear inclined strut; compared with a traditional support with a stand column assembly, the steel consumption is lower, installation is more convenient, and stress is reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component installation, in particular to a column-free photovoltaic component bracket. Background Art

[0002] Under the dual carbon background of "carbon peak" and "carbon neutrality", gigawatt-level super-large photovoltaic bases came into being, and photovoltaic power generation has rapidly developed into the main force of new energy carbon reduction. At present, parity bidding photovoltaic projects have been fully promoted, and the early development costs of projects are increasing. Project cost control has become the main theme of photovoltaic power generation project construction.

[0003] Currently, conventional component bracket solutions are becoming increasingly mature, but the amount of steel used per watt is generally too high, the project cost is difficult to meet the company's investment return needs, and conventional component bracket solutions are not convenient enough to install.

[0004] Currently, conventional module supports utilize a main frame with columns. The steel columns are typically made of channel steel or other types of hot-rolled steel. The use of steel columns significantly increases the steel content per tile of the module support. Conventional module supports with columns are complex to install. These supports typically begin by welding the columns to the top of the foundation, followed by the installation of diagonal beams and braces to form the main frame with the columns. Since the main frame installation is a two-step process and typically requires high-altitude operation, it is not conducive to convenient on-site construction. Conventional module supports with columns have only load-bearing crossbeams as the steel keel layer. Modules are directly mounted on the upper flanges of the load-bearing crossbeams, making it difficult to control the smoothness of the module installation. This can lead to hidden cracks in the modules due to concentrated installation stress, which in turn affects the normal power generation of the modules. Utility Model Content

[0005] Technical purpose: In view of the shortcomings of the above-mentioned existing photovoltaic module installation structure, the utility model discloses a column-free photovoltaic module bracket.

[0006] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0007] A column-free photovoltaic module support includes a steel keel layer for fixing the photovoltaic module and a plurality of supporting steel frames arranged below the steel keel layer for supporting. Each supporting steel frame includes a front diagonal brace, a rear diagonal brace and a support beam. The front diagonal brace, the rear diagonal brace and the support beam form a triangular support structure as three sides. The steel keel layer is installed on the support beam. The support beam is arranged along the inclination direction of the photovoltaic module. One end of the front diagonal brace and the rear diagonal brace are connected to the support beam, and the other end is connected to a support arranged on a fixed foundation. The inclination angle of the support beam is controlled by the front diagonal brace and the rear diagonal brace.

[0008] Preferably, the steel keel layer of the present invention includes a load-bearing beam arranged perpendicular to the axial direction of the supporting beam on the supporting surface and a purlin arranged parallel to the supporting beam, the lower flange of the purlin is bolted to the upper flange of the load-bearing beam, the lower flange of the load-bearing beam is bolted to the upper flange of the supporting beam, and the photovoltaic module is installed on the purlin.

[0009] Preferably, the front diagonal brace and the rear diagonal brace of the present invention are connected and fixed using double bolts at the connection positions corresponding to the support and the support beam.

[0010] Preferably, the front diagonal brace and the rear diagonal brace of the present invention are provided with reinforcing steel plates at the connection positions corresponding to the supports and the support beams.

[0011] Preferably, the front diagonal brace, rear diagonal brace, support beam and support of the supporting steel frame of the present invention are all preassembled components, and when the photovoltaic components are installed, they are directly preassembled and then fixed as a whole on a fixed foundation.

[0012] Beneficial effects: The column-free photovoltaic module support of the utility model has the following beneficial effects:

[0013] 1. Compared with the conventional bracket with column components, the utility model uses less steel per watt and has reasonable force, which can save material consumption and reduce costs.

[0014] 2. The supporting steel frame of the present invention is a prefabricated component and can be manufactured and assembled in the bracket factory. On-site installation only requires fixing it to the top of the foundation, which simplifies the bracket installation steps and achieves the effect of saving construction period and reducing installation costs.

[0015] 3. The steel keel layer of the utility model is a vertical and horizontal double-layer steel structure with high overall rigidity, which improves the flatness of component installation, reduces the risk of hidden cracks in the components, and provides more reliable protection for the normal operation and power generation of the power station.

[0016] 4. The utility model uses a double-bolt structure at the connection point of the diagonal brace, which can increase the upper limit of the force at the connection node and achieve stable support and fixation of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0018] Figure 1 This is a schematic elevation diagram of the bracket solution of the utility model.

[0019] Figure 2 It is a plan view of the structural scheme of the utility model.

[0020] Figure 3This is a schematic elevation diagram of the steel keel layer of the structural solution of the utility model.

[0021] Among them, 1-photovoltaic panel, 2-front diagonal brace, 3-rear diagonal brace, 4-support beam, 5-fixed foundation, 6-support, 7-load-bearing beam, 8-purlin. DETAILED DESCRIPTION

[0022] Reference will now be made in detail to the embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by way of explanation of the apparatus, composition and materials of the present disclosure, and not by way of limitation. On the contrary, the following description provides a convenient illustration of exemplary embodiments for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as part of one embodiment may be used in conjunction with another embodiment to produce yet another embodiment. It is expected that the present disclosure covers such modifications and variations that fall within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present disclosure are disclosed in or apparent from the following detailed description. It will be understood by those of ordinary skill in the art that this discussion is merely a description of exemplary embodiments and is not intended to limit the broader aspects of the present disclosure.

[0023] like Figure 1-Figure 3 As shown, the utility model discloses a column-free photovoltaic module bracket, including a steel keel layer for fixing the photovoltaic module 1 and a plurality of supporting steel frames arranged below the steel keel layer for supporting. Each supporting steel frame includes a front diagonal brace 2, a rear diagonal brace 3 and a support beam 4. The front diagonal brace 2, the rear diagonal brace 3 and the support beam 4 form a triangular support structure as three sides. The steel keel layer is installed on the support beam 4, and the support beam 4 is arranged along the inclination direction of the photovoltaic module 1. One end of the front diagonal brace 2 and the rear diagonal brace 3 is connected to the support beam 4, and the other end is connected to a support 6 arranged on a fixed foundation 5. The inclination angle of the support beam 4 is controlled by the front diagonal brace 2 and the rear diagonal brace 3.

[0024] The utility model supports and fixes the photovoltaic module 1 through a triangular support structure. Compared with the support form of setting columns, the steel consumption of a single tile can be effectively reduced. The connection nodes of the triangular support structure are usually subjected to greater force. Therefore, the utility model uses double bolts to connect and fix the front diagonal brace 2 and the rear diagonal brace 3 at the connection positions corresponding to the support 6 and the support beam 4. When the upper load is large, if the double-bolt node does not meet the strength verification, a reinforcement steel plate can be set at the connection node to increase the node design strength to reduce the steel consumption; the front diagonal brace 2, the rear diagonal brace (3), the support beam 4 and the support 6 of the supporting steel frame are all pre-assembled components, which are manufactured and assembled in the bracket factory. When the photovoltaic module 1 is installed, it is directly pre-assembled and fixed on the foundation 5 as a whole, which can simplify the bracket installation steps and reduce the workload of the on-site bracket installation; it can ensure the structural safety and achieve the effect of saving construction period and reducing costs.

[0025] The steel keel layer of the utility model includes a load-bearing beam 7 arranged perpendicular to the axial direction of the support beam 4 on the supporting surface and a purlin 8 arranged parallel to the support beam 4. The lower flange of the purlin 8 is bolted to the upper flange of the load-bearing beam 7. The load-bearing beam 7 prevents the upper flange from becoming unstable by arranging purlins on its upper flange; the lower flange of the load-bearing beam 7 is bolted to the upper flange of the support beam 4, and the photovoltaic module 1 is installed on the purlin 8; the vertical and horizontal double-layer steel structure of the steel keel layer can improve the overall stiffness of the steel keel layer, thereby improving the flatness of the module installation, reducing the risk of hidden cracks in the module due to installation stress concentration, and providing more reliable protection for the normal operation and power generation of the power station.

[0026] When in use, the weight of the photovoltaic module 1 and external loads such as wind and snow are directly borne by the purlins of the steel keel layer. The load-bearing beams of the steel keel layer transmit the load to the supporting steel frame, and finally transmit it to the fixed foundation through the support 6. The transmission method of the support structure system force is direct and the transmission path is simple. During the implementation of the column-free support scheme for solar photovoltaic power generation project components, the cross-sectional model of the main frame and steel keel layer components should be selected through structural modeling calculations based on the optimal module installation inclination angle, the module's own weight load, the project site's wind and snow load, and other factors.

Claims

1. A column-free photovoltaic module support, characterized in that: The invention comprises a steel keel layer for fixing a photovoltaic module (1) and a plurality of supporting steel frames arranged below the steel keel layer for supporting. Each supporting steel frame comprises a front diagonal brace (2), a rear diagonal brace (3) and a supporting beam (4). The front diagonal brace (2), the rear diagonal brace (3) and the supporting beam (4) form a triangular supporting structure as three sides. The steel keel layer is installed on the supporting beam (4). The supporting beam (4) is arranged along the tilting direction of the photovoltaic module (1). One end of the front diagonal brace (2) and the rear diagonal brace (3) are connected to the supporting beam (4), and the other end is connected to a support (6) arranged on a fixed foundation (5). The tilting angle of the supporting beam (4) is controlled by the front diagonal brace (2) and the rear diagonal brace (3). The front diagonal brace (2) and the rear diagonal brace (3) are connected and fixed using double bolts at the connection position corresponding to the support (6) and the supporting beam (4).

2. The column-free photovoltaic module support according to claim 1, characterized in that: The steel keel layer includes a load-bearing beam (7) arranged perpendicularly to the axial direction of the support beam (4) on the support surface and a purlin (8) arranged parallel to the support beam (4); the lower flange of the purlin (8) is bolted to the upper flange of the load-bearing beam (7); the lower flange of the load-bearing beam (7) is bolted to the upper flange of the support beam (4); and the photovoltaic module (1) is mounted on the purlin (8).

3. The column-free photovoltaic module support according to claim 1, characterized in that: Reinforcement steel plates are provided at connection positions of the front diagonal brace (2) and the rear diagonal brace (3) corresponding to the support (6) and the support beam (4).

4. The column-free photovoltaic module support according to claim 3, characterized in that: The front diagonal brace (2), the rear diagonal brace (3), the support beam (4) and the support (6) of the supporting steel frame are all preassembled components. When the photovoltaic module (1) is installed, they are directly preassembled and then fixedly installed as a whole on the fixed foundation (5).

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