Photovoltaic module fixing structure
By adding gaskets and connectors between the photovoltaic module frame and the purlin, the pressure at the bolt connection is dispersed, which solves the problem of the photovoltaic module frame tearing under wind and snow loads, and achieves higher stability and safety.
Patent Information
- Application Number
- CN202422823936.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The existing installation method of photovoltaic modules is prone to tearing the frames under wind and snow loads, resulting in unstable modules.
By adding the first and second gaskets between the frame of the photovoltaic module and the purlin of the bracket, and combining the connector and multi-layer gasket structure, the pressure at the bolt connection is dispersed, and the frame strength and wind resistance are enhanced.
The stability and safety of photovoltaic modules under heavy snow and wind loads are improved, and the possibility of module damage is reduced.
Smart Images
Figure CN223428381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic panel installation, in particular to a photovoltaic component fixing structure. Background Art
[0002] At present, since the components of fixed photovoltaic brackets on the market are all connected by stainless steel bolts, if the wind and snow loads are large, this installation method that only uses bolts and photovoltaic panel frames can easily tear the frames of the photovoltaic components. Utility Model Content
[0003] The purpose of the present utility model is to overcome the problem in the prior art that the frame of the photovoltaic module is easily torn by the installation method of the photovoltaic module, and to provide a photovoltaic module fixing structure, which has the advantage of enhancing the stability and wind resistance of the photovoltaic module, so that the photovoltaic module has the advantage of higher safety under heavy wind and snow loads.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a photovoltaic module fixing structure, including a photovoltaic module and a bracket, the frame of the photovoltaic module is padded with a first gasket, and the purlin of the bracket is padded with a second gasket, and a first bolt is passed through the first gasket, the frame, the purlin and the second gasket in sequence to connect the photovoltaic module to the bracket.
[0005] In some embodiments, there are multiple photovoltaic modules, and the frames of two adjacent photovoltaic modules are connected by a connector, and the connector is connected to the purlin.
[0006] In some embodiments, the frame of the photovoltaic component has a top portion located on the same side as the active surface of the photovoltaic panel, a side portion folded downward from the outer end of the top portion, and a bottom portion folded laterally inward from the bottom of the side portion, wherein the first gasket is arranged on the upper surface of the bottom portion.
[0007] In some embodiments, the connecting member has a base plate located between two adjacent photovoltaic components, and both sides of the base plate are folded upward to form side panels connected to the side portions, and the top of the side panel is folded laterally outward to form a flange plate that is buckled on the top portion, and the base plate is connected to the purlin by a second bolt.
[0008] In some embodiments, a third gasket is provided on the lower surface of the purlin, and the second bolt passes through the base plate, the purlin and the third gasket in sequence for connection.
[0009] In some embodiments, a first friction-enhancing layer is provided on the surface of the flange plate that contacts the top surface portion.
[0010] In some embodiments, a second friction-enhancing layer is provided on the surface of the side plate that contacts the side portion.
[0011] In some embodiments, the second gasket and the third gasket form an elongated gasket, wherein first bolt holes for passing the first bolts are provided at intervals on the elongated gasket, and a second bolt hole for passing the second bolts is provided between two adjacent first bolt holes.
[0012] In some embodiments, the second bolt hole is a circular hole, and the first bolt hole is an elongated hole.
[0013] In some embodiments, a circular hole is defined in the first gasket for the first bolt to pass through.
[0014] Through the above technical solution, the utility model disperses the pressure at the connection between the photovoltaic module and the bracket bolt by adding the first gasket and the second gasket, thereby increasing the frame strength and wind resistance of the photovoltaic module, so that the photovoltaic module has higher safety when the wind and snow load changes. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of a photovoltaic module fixing structure according to a specific embodiment of the present utility model;
[0016] Figure 2 This is a schematic diagram of the photovoltaic module fixing structure from another perspective;
[0017] Figure 3 yes Figure 1 Schematic diagram of the structure of a medium-long strip gasket;
[0018] Figure 4 yes Figure 2 Schematic diagram of the structure of the first gasket.
[0019] Description of Reference Numerals
[0020] 1. Photovoltaic module; 2. Connector; 3. Long strip gasket; 4. First gasket; 5. First bolt; 6. Second bolt; 31. First bolt hole; 32. Second bolt hole. DETAILED DESCRIPTION
[0021] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.
[0022] It should be noted that in the prior art, the bracket for supporting photovoltaic modules is installed on the ground, and the frame of the photovoltaic module is directly connected to the purlin of the bracket through stainless steel bolts. In the wild and when the wind and snow load increases, on the one hand, since only the bolt head acts on the module frame in this connection method, the force-bearing area is too small; on the other hand, the frame of the photovoltaic module is mostly made of aluminum alloy and is relatively thin, which is quite different from the strength of the stainless steel bolts. Under the action of wind suction, the module is often overturned after the frame is torn.
[0023] In order to solve the above problems, the utility model discloses a photovoltaic module fixing structure, such as Figure 1-Figure 2 As shown, the photovoltaic module 1 and the bracket are provided with a first gasket 4 on the frame of the photovoltaic module 1 and a second gasket on the purlin of the bracket. A first bolt 5 is sequentially passed through the first gasket 4, the frame, the purlin, and the second gasket to connect the photovoltaic module 1 to the bracket. The addition of the first and second gaskets distributes the pressure at the bolted connection, making the force more uniform and avoiding local stress concentration, thereby enhancing the frame strength and wind resistance of the photovoltaic module.
[0024] Among them, when there are multiple photovoltaic modules 1, the frames of two adjacent photovoltaic modules 1 are connected through connectors 2, and the connectors 2 are connected to the purlins. Such a connection can form an integral structure, improve the overall wind resistance, reduce the risk of overturning of a single photovoltaic module under strong winds, and can disperse the load brought by wind and snow to multiple boards, thereby reducing the force on a single photovoltaic module and reducing the possibility of damage.
[0025] In the present invention, the frame of the photovoltaic module 1 has a top portion located on the same side as the active surface of the photovoltaic panel, a side portion folded downward from the outer end of the top portion, and a bottom portion folded laterally inward from the bottom of the side portion, so that the frame of the photovoltaic module 1 forms a rough "]" shape, wherein the first gasket 4 is arranged on the upper surface of the bottom portion.
[0026] The connector 2 has a base plate located between two adjacent photovoltaic modules 1. Both sides of the base plate are folded upward to form side panels connected to the side surfaces. The top of the side panels are folded outward laterally to form flanged plates that are buckled on the top surface, so that the connector forms an inverted "J" shape, wherein the base plate and the purlin are connected by a second bolt 6 to improve the stability of the installation.
[0027] Furthermore, in order to disperse the pressure at the connection of the second bolt 6, a third gasket can be provided on the lower surface of the purlin, and the second bolt 6 passes through the base plate, the purlin and the third gasket in sequence for connection. In this way, combined with the structural setting of the aforementioned first gasket and the second gasket, a double-layer protection is provided through the structural setting of gaskets and connectors at multiple positions to increase the strength of the component frame and the wind resistance.
[0028] Furthermore, to enhance connection stability, a first friction-enhancing layer is provided on the surface of the flange plate in contact with the top surface, and / or a second friction-enhancing layer is provided on the surface of the side plate in contact with the side surface. The roughened contact surface enhances friction, effectively preventing the connector from slipping under wind loads or other external forces, thereby maintaining the stability of the photovoltaic panel.
[0029] It should be noted that there are many ways to form an enhanced friction layer. For example, the roughness of the contact surface can be increased by grinding, sandblasting, milling, etc. The structural form of increasing friction is well known to those skilled in the art and will not be described in detail in this utility model.
[0030] like Figure 1 or Figure 3 As shown, in the present invention, the second gasket and the third gasket can be combined to form an integral long strip gasket 3, on which first bolt holes 31 for the first bolt 5 to pass through are spaced apart, and a second bolt hole 32 for the second bolt 6 to pass through is provided between two adjacent first bolt holes.
[0031] Since the strength and tightness of bolt locking in round holes are better than those in elongated holes, but the degree of on-site adjustment of elongated holes is better than that of round holes, after comprehensive consideration, the second bolt hole 32 is a round hole and the first bolt hole 31 is an elongated hole.
[0032] like Figure 4 As shown, the first gasket 4 is provided with a circular hole for the first bolt 5 to pass through.
[0033] In the present invention, it can be understood that bolt connection refers to connection through the threaded fit of bolts and nuts. Figure 1 Add flat washers and spring washers as shown.
[0034] It should be noted that in this application, unless otherwise specified, directional words such as "up, down, left, and right" generally refer to the up, down, left, and right shown in the reference drawings; "inside and outside" refer to the inside and outside relative to the outline of each component itself; and "top and bottom" are generally words used to describe the relative positional relationship of each component in terms of the directions shown in the drawings or in the vertical, perpendicular or gravity direction.
[0035] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0036] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0038] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A photovoltaic module fixing structure, characterized in that: The photovoltaic module (1) comprises a frame and a bracket, wherein the frame of the photovoltaic module (1) is provided with a first gasket (4), and the purlin of the bracket is provided with a second gasket, and a first bolt (5) is passed through the first gasket (4), the frame, the purlin, and the second gasket in sequence to connect the photovoltaic module (1) to the bracket.
2. The photovoltaic module fixing structure according to claim 1, characterized in that: The photovoltaic modules (1) are multiple, and the frames of two adjacent photovoltaic modules (1) are connected via a connector (2), and the connector (2) is connected to the purlin.
3. The photovoltaic module fixing structure according to claim 1 or 2, characterized in that: The frame of the photovoltaic assembly (1) comprises a top portion located on the same side as the active surface of the photovoltaic cell panel, a side portion folded downward from the outer end of the top portion, and a bottom portion folded laterally inward from the bottom of the side portion, wherein a first gasket (4) is arranged on the upper surface of the bottom portion.
4. The photovoltaic module fixing structure according to claim 3, characterized in that: The connecting member (2) comprises a base plate located between two adjacent photovoltaic modules (1), both sides of the base plate being folded upward to form side plates connected to the side surface, the top of the side plate being folded outwardly along the transverse direction to form a flange plate buckled on the top surface, and the base plate is connected to the purlin via a second bolt (6).
5. The photovoltaic module fixing structure according to claim 4, characterized in that: The lower surface of the purlin is padded with a third gasket, and the second bolt (6) passes through the base plate, the purlin and the third gasket in sequence for connection.
6. The photovoltaic module fixing structure according to claim 4, characterized in that: A first friction-enhancing layer is provided on the surface of the flange plate that contacts the top surface portion.
7. The photovoltaic module fixing structure according to claim 4, characterized in that: A second friction-enhancing layer is provided on the surface of the side plate that contacts the side surface portion.
8. The photovoltaic module fixing structure according to claim 1, characterized in that: The second gasket and the third gasket form a long strip gasket (3), wherein first bolt holes (31) for passing the first bolts (5) are provided at intervals on the long strip gasket (3), and a second bolt hole (32) for passing the second bolt (6) is provided between two adjacent first bolt holes.
9. The photovoltaic module fixing structure according to claim 8, characterized in that: The second bolt hole (32) is a circular hole, and the first bolt hole (31) is an elongated hole.
10. The photovoltaic module fixing structure according to claim 1, characterized in that: The first gasket (4) is provided with a circular hole for the first bolt (5) to pass through.