Purlin connecting structure and photovoltaic support

Abstract

The application belongs to the technical field of photovoltaic support, and discloses a purline connecting structure and a photovoltaic support, which are used for mounting a photovoltaic module on a photovoltaic support, and comprise a purline, a first clamping piece and a second clamping piece. The first clamping piece comprises a first mounting part and a first clamping part, the second clamping piece comprises a second mounting part and a second clamping part, the first mounting part and the second mounting part are fixedly connected with the purline, the first clamping part and the second clamping part are oppositely arranged, a first clamping groove is arranged on the first clamping part, a second clamping groove is arranged on the second clamping part, and the first clamping groove and the second clamping groove are used for clamping a frame of the photovoltaic module. Compared with the traditional bolt fixing, the number of bolts is significantly reduced, the installation process is simplified, the installation time is saved, and the labor cost is reduced by adopting the mode of clamping the frame of the photovoltaic module by the clamping pieces and then fastening by bolts.

Description

Technical Field

[0001] This application relates to the field of photovoltaic support technology, and more specifically, to a purlin connection structure and a photovoltaic support. Background Technology

[0002] In existing photovoltaic (PV) mounting systems, purlins and PV modules are mostly fixed with bolts. This process involves a large number of bolts, requiring individual tightening, which is cumbersome, time-consuming, and increases installation costs. It also makes subsequent maintenance of the PV panels and mounting systems inconvenient. Furthermore, the existing installation method has poor adaptability to different PV module sizes; if the module size changes, the entire connection structure may need to be replaced.

[0003] Therefore, this application proposes a purlin connection structure and a photovoltaic support to solve the above-mentioned problems. Utility Model Content

[0004] To address the aforementioned issues, this application provides a purlin connection structure and a photovoltaic support.

[0005] The purlin connection structure provided in this application adopts the following technical solution:

[0006] A purlin connection structure is provided for mounting photovoltaic modules on a photovoltaic bracket. The purlin connection structure includes a purlin, a first engaging member, and a second engaging member. The first engaging member includes a first mounting portion and a first engaging portion, and the second engaging member includes a second mounting portion and a second engaging portion. The first mounting portion and the second mounting portion are fixedly connected to the purlin. The first engaging portion and the second engaging portion are disposed opposite to each other. A first slot is provided on the first engaging portion, and a second slot is provided on the second engaging portion. The first slot and the second slot are used to engage with the frame of the photovoltaic module.

[0007] The above technical solution achieves a fixed connection with the photovoltaic module through the first and second slots, reducing the number of bolts required during installation. At the same time, by adjusting the installation positions of the first and second locking parts and the purlin during installation, it can adapt to the installation of photovoltaic modules of different sizes and specifications, greatly improving the applicability of the purlin connection structure.

[0008] Furthermore, the purlin connection structure also includes a first connector, one end of which passes through the first mounting part, the second mounting part, and the purlin in sequence. The first mounting part, the second mounting part, and the purlin are respectively provided with connection holes corresponding to the first connector.

[0009] The above technical solution ensures the stability of the connection between the first and second snap-fit ​​components and the purlin, preventing the photovoltaic modules from shifting due to loose connections after installation. The connection and fixation between the first and second snap-fit ​​components and the purlin can be achieved with a single first connector, further reducing the number of connecting bolts and lowering production costs. At the same time, compared with the traditional fixing method without a unified connection benchmark, this structure uses corresponding connection holes for positioning, resulting in higher installation accuracy. Moreover, only the first connector needs to be operated during disassembly and assembly, simplifying the maintenance process.

[0010] Furthermore, the first mounting portion and the second mounting portion are fixedly connected to the bottom of the purlin, and the first engaging portion and the second engaging portion are disposed opposite to each other on both sides of the purlin along a first direction.

[0011] The above technical solution makes the force on the first and second locking components more balanced, which can evenly transfer the weight of the photovoltaic module to the purlin and reduce structural deformation caused by local stress concentration.

[0012] Furthermore, the first engaging portion is disposed at one end of the first mounting portion along the first direction and is perpendicular to the first mounting portion. There are two first engaging portions, and the two first engaging portions are disposed opposite to each other on both sides of the first mounting portion along the second direction, which is perpendicular to the first direction.

[0013] The second engaging portion is disposed at one end of the second mounting portion along the first direction and is perpendicular to the second mounting portion. There are two second engaging portions, which are disposed opposite to each other on both sides of the second mounting portion along the second direction.

[0014] The above technical solutions enhance the clamping force on the frame, preventing the components from swaying or falling off under the influence of external forces such as wind. Especially for larger photovoltaic modules, the design of multiple locking points on both sides can distribute the load, avoid damage to a single locking part due to excessive force, and improve the adaptability of the structure to modules of different widths.

[0015] Furthermore, the first engaging portion and the first mounting portion are integrally bent and formed, and the second engaging portion and the second mounting portion are integrally bent and formed.

[0016] Through the above technical solution, the first and second locking parts are integrally formed, reducing the number of parts and assembly steps, eliminating the connection gap at the splicing of the locking part and the mounting part, and significantly improving the structural strength; reducing production and assembly costs, while avoiding the problem of unstable locking caused by installation errors.

[0017] Furthermore, the connecting holes on the first mounting portion and / or the second mounting portion are oblong holes; and / or, the purlins are square tubes.

[0018] Through the above technical solutions, the waist-shaped hole design allows for flexible adjustment of the connection positions of the first and second mounting parts, which can be adapted to photovoltaic modules or purlins with different connection hole positions, solving the problem that traditional circular fixed hole positions cannot be adapted to modules with varying sizes; the purlin adopts a square tube structure, which has a larger contact area with the mounting part compared to round tubes or other irregular cross sections, resulting in a more stable connection, and the square tube has better bending resistance, which can better bear the weight of the photovoltaic modules and external loads.

[0019] This application also discloses a photovoltaic support, including a main shaft, a connecting component, and a purlin mounting structure as described in any of the above claims, wherein the connecting component is fixedly connected to the main shaft and the purlin mounting structure.

[0020] Furthermore, the connecting component is a U-bolt, a through bolt, or a clamp assembly.

[0021] The above technical solutions allow for flexible selection based on actual needs such as spindle size and installation environment. For example, when the spindle diameter changes, there is no need to replace the entire connection structure; only the corresponding type of connection component needs to be replaced. This improves the adaptability of the bracket to different working conditions and reduces the cost of bracket modification due to changes in working conditions. Compared with brackets using a single connection method, this solution is more practical.

[0022] Furthermore, the connecting component is a clamp assembly, which includes a clamp and a second connector. The bottom of the purlin of the purlin connecting structure is provided with a connection port that allows the clamp to pass through. The two ends of the clamp pass through the connection port and extend downward around the main shaft, and the two ends are fixedly connected by the second connector.

[0023] The above technical solution eliminates the need to drill numerous mounting holes in the spindle or purlins, thus avoiding structural strength reduction caused by drilling. The ring-shaped fixing can adapt to the cylindrical surface of the spindle, resulting in a tighter connection. Furthermore, fastening or disassembly can be completed through the second connector, eliminating the need for complex tools during installation. Compared to traditional bolt-through fixing, this significantly reduces the difficulty of installation.

[0024] Furthermore, the upper surface of the purlin is provided with an operating port corresponding to the connection port.

[0025] The above technical solution allows installers to directly operate the clamps and fix the second connectors from above the purlins, eliminating the need to drill to the bottom of the purlins for blind operation. This reduces physical limitations during installation and improves operational safety. At the same time, the access port also facilitates the adjustment or replacement of the clamps during later maintenance, avoiding maintenance difficulties caused by the inability to directly access the connection parts and shortening maintenance time.

[0026] In summary, this application includes the following beneficial technical effects: by setting the first and second locking components, the bracket can be adapted to photovoltaic modules and main shafts of different sizes, solving the problem that the traditional structure needs to be replaced as a whole due to size changes; by replacing the traditional bolt fixing with the slot-type connection of the locking components, the amount of bolts used and installation steps are greatly reduced, saving installation procedures and making disassembly and assembly during later maintenance easier, significantly reducing labor costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the purlin connection structure and photovoltaic module assembly structure of this application;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 This is a schematic diagram of the purlin connection structure of this application;

[0030] Figure 4 This is a schematic diagram of the purlin structure of this application;

[0031] Figure 5 A schematic diagram of the structure for the mating of the first card assembly and the second card assembly in this application;

[0032] Figure 6 Another structural schematic diagram of the assembly of the first and second snap fasteners of this application.

[0033] Explanation of the labels in the diagram:

[0034] 1. First snap-fit ​​component; 11. First mounting part; 12. First snap-fit ​​part; 121. First snap-fit ​​slot;

[0035] 2. Second snap-fit ​​component; 21. Second mounting part; 22. Second snap-fit ​​part; 221. Second snap-fit ​​slot;

[0036] 3. Purlin; 4. Connecting hole; 5. First connecting piece; 6. Spindle;

[0037] 7. Connecting component; 71. Clamp; 72. Second connecting piece;

[0038] 8. Connection port; 9. Operation port;

[0039] 100. Photovoltaic module; 110. Frame. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Example:

[0044] The following is in conjunction with the appendix Figure 1 Section 6 provides further details regarding this application.

[0045] Please refer to Figure 1 and Figure 2As shown in the figure, this application discloses a purlin connection structure for mounting a photovoltaic module 100 onto a photovoltaic bracket. The purlin connection structure includes a purlin 3, a first engaging member 1, and a second engaging member 2. The first engaging member 1 includes a first mounting portion 11 and a first engaging portion 12. The second engaging member 2 includes a second mounting portion 21 and a second engaging portion 22. The first mounting portion 11 and the second mounting portion 21 are fixedly connected to the purlin 3. The first engaging portion 12 and the second engaging portion 22 are arranged opposite to each other. The first engaging portion 12 has a first slot 121, and the second engaging portion 22 has a second slot 221. The first slot 121 and the second slot 221 are used to engage with the frame 110 of the photovoltaic module 100. By setting the first engaging member 1 and the second engaging member 2, the distance between the first engaging portion 12 and the second engaging portion 22 can be adjusted according to the size of the photovoltaic module 100, thereby meeting the installation requirements and adapting to the installation of photovoltaic modules 100 of different specifications. By setting the first slot 121 and the second slot 221, a fixed connection with the photovoltaic module 100 is achieved, which greatly reduces the number of bolts in the installation process, reduces production and construction costs, and greatly improves installation efficiency.

[0046] See Figure 2 , Figure 3 , Figure 5 and Figure 6 The purlin connection structure also includes a first connector 5. One end of the first connector 5 passes sequentially through the first mounting part 11, the second mounting part 21, and the purlin 3, thereby fixing the first locking part 1, the second locking part 2, and the purlin 3 together. The first mounting part 11, the second mounting part 21, and the purlin 3 are respectively provided with connection holes 4 corresponding to the first connector 5. The first connector 5 enables the fixed connection of the first locking part 1, the second locking part 2, and the purlin 3, ensuring the stability of the connection between the first locking part 1, the second locking part 2, and the purlin 3, and preventing displacement of the photovoltaic module 100 due to loose connections after installation. Compared to traditional fixing methods without a unified connection benchmark, this structure uses corresponding connection holes 4 for positioning, resulting in higher installation accuracy. Furthermore, only the first connector 5 needs to be operated during assembly and disassembly, simplifying the maintenance process. The first connector 5 can be a bolt, screw, or rivet; in this embodiment, the first connector 5 is a bolt. In other embodiments not illustrated, the first connector 5 can be omitted. After adjusting the distance between the first snap-fit ​​1 and the second snap-fit ​​2 according to the size specifications of the photovoltaic module 100, the first snap-fit ​​1, the second snap-fit ​​2 and the purlin 3 can be directly fixedly connected by welding. This can achieve the pre-installation of the first snap-fit ​​1, the second snap-fit ​​2 and the purlin 3, saving the on-site installation process, thereby improving installation efficiency and reducing labor costs.

[0047] See Figure 2 and Figure 3The first mounting part 11 and the second mounting part 21 are fixedly connected to the bottom of the purlin 3. The length directions of the first mounting part 11 and the second mounting part 21 are perpendicular to the length direction of the purlin 3, and both the first mounting part 11 and the second mounting part 21 are flat. The first engaging part 12 and the second engaging part 22 are arranged opposite to each other on both sides of the purlin 3 along a first direction; the first direction is the width direction of the purlin 3, and the second direction is the length direction of the purlin 3, which is perpendicular to the first direction. Furthermore, the first engaging part 1 and the second engaging part 2 are symmetrically arranged relative to the purlin 3 along the center line of the second direction. The symmetrical arrangement makes the force on the first engaging part 1 and the second engaging part 2 more balanced, which can evenly transfer the weight of the photovoltaic module 100 to the purlin 3 and reduce structural deformation caused by local stress concentration.

[0048] Please continue to refer to this. Figure 2 and Figure 3 As shown, the first engaging member 1 and the second engaging member 2 are disposed at at least one end of the purlin 3 along the second direction and are fixedly connected to the purlin 3. In this embodiment, the first engaging member 1 and the second engaging member 2 are symmetrically arranged at both ends of the purlin 3 along the first direction, which further ensures the stability and balance of the force.

[0049] See Figure 2 , Figure 5 and Figure 6 The first engaging portion 12 is disposed at one end of the first mounting portion 11 along the first direction and is perpendicular to the first mounting portion. There are two first engaging portions 12, which are disposed opposite to each other on both sides of the first mounting portion 11 along the second direction. The second engaging portion 22 is disposed at one end of the second mounting portion 21 along the first direction. There are two second engaging portions 22, which are disposed opposite to each other on both sides of the second mounting portion 21 along the second direction. With this arrangement, the openings of the first slot 121 and the second slot 221 are positioned opposite each other. In this embodiment, two adjacent photovoltaic modules 100 are symmetrically arranged on the upper surface of the purlin 3. The first slot 121 of the first engaging member 1 engages with the frame 110 of one of the photovoltaic modules 100, and the second slot 221 of the second engaging member 2 engages with the frame 110 of the other photovoltaic module 100. Both ends of the purlin 3 in the length direction are provided with mutually cooperating first engaging members 1 and second engaging members 2, so that the same photovoltaic module 100 on the purlin 3 is supported by multiple slots, which enhances the clamping force on the frame 110, improves the installation stability of the photovoltaic module 100, and prevents the photovoltaic module 100 from shaking or falling off under the action of external forces such as wind. Especially for larger photovoltaic modules 100, the design of multiple engaging points on both sides can distribute the load, avoid damage to a single engaging part due to excessive force, and improve the adaptability of the structure to photovoltaic modules 100 of different widths.

[0050] See Figure 2 , Figure 5 and Figure 6 The first engaging part 12 and the first mounting part 11 are integrally bent and formed, and the second engaging part 22 and the second mounting part 21 are integrally bent and formed. The integral forming reduces the number of parts and assembly steps, eliminates the connection gap at the splicing point, and significantly improves the structural strength. It reduces production and assembly costs, and avoids the problem of unstable engagement caused by installation errors of the spliced ​​parts.

[0051] See Figure 2 , Figure 5 and Figure 6 The connecting holes 4 on the first mounting part 11 and / or the second mounting part 21 are oblong holes. In this embodiment, the connecting hole 4 of one of the first mounting part 11 and the second mounting part 21 is a circular hole, and the connecting hole of the other is an oblong hole. In other embodiments not shown, the connecting holes 4 on the first mounting part 11 and the second mounting part 21 are both oblong holes, and the extension directions of the oblong holes are perpendicular to each other. The oblong hole design allows the connection position of the first and second mounting parts 21 to be flexibly adjusted, which can adapt to photovoltaic modules or purlins 3 with different connecting hole 4 positions, solving the problem that traditional fixed hole positions cannot adapt to modules with different sizes. If the extension directions of the two oblong holes are set perpendicularly, or if one of the connecting holes 4 is set as a circular hole and the other connecting hole 4 is set as an oblong hole, the connector 5 is prevented from loosening, ensuring the stability of the connection between the first mounting part 11 and the second mounting part 21.

[0052] Please continue to refer to this. Figure 3 As shown, in this embodiment, the purlin 3 adopts a square tube structure. Compared with round tubes or other irregular cross-sections, it has a larger contact area with the mounting part, resulting in a more stable connection. Furthermore, the purlin 3 uses a closed cross-section, which makes the square tube more resistant to bending and better able to withstand the weight of the photovoltaic module 100 and external loads. Preferably, in this embodiment, the purlin 3 is a hollow square tube structure. Using a hollow structure reduces weight while meeting load-bearing requirements, thereby reducing the load and cost of the photovoltaic support.

[0053] This application also discloses a photovoltaic support structure, including a main shaft 6, a connecting component 7, and the aforementioned purlin mounting structure. The connecting component 7 fixes the main shaft 6 to the purlin mounting structure. Specifically, the connecting component 7 can be a U-bolt, a through bolt, or a clamp assembly. The choice of U-bolt or through bolt as the connecting component 7 is flexible and not limited, as long as it achieves a fixed connection between the purlin mounting structure and the main shaft 6. For example, when the diameter of the main shaft 6 changes, it is not necessary to replace the entire connecting structure; only the corresponding type of connecting component 7 needs to be replaced. This improves the adaptability of the support structure to different working conditions and reduces the cost of support modification due to changes in working conditions, making it more practical than supports with a single connection method.

[0054] See Figure 1 and Figure 3 The connecting component 7 is a clamp assembly, which includes a clamp 71 and a second connector 72. The bottom of the purlin 3 is provided with a connecting port 8 that allows the clamp 71 to pass through. The two ends of the clamp 71 pass through the connecting port 8 and extend downward to surround the main shaft 6, and the two ends are fixedly connected by the second connector 72. It is not necessary to open a large number of mounting holes on the main shaft 6 or the purlin 3, thus avoiding the weakening of structural strength caused by drilling. The outline of the clamp 71 is adapted to the outer circumferential outline of the main shaft 6. The surrounding fixation of the clamp 71 makes the connection between the purlin connecting structure and the main shaft 6 tighter. It can be tightened or disassembled by the second connector 72. No complicated tools are required during installation, making installation more convenient and greatly reducing the installation difficulty.

[0055] See Figure 3 and Figure 4 The upper surface of the purlin 3 is provided with an operating port 9 corresponding to the connection port 8; this facilitates the installation of the clamp 71 by the installer without having to drill to the bottom of the purlin 3 for blind operation, reducing the body position restrictions during installation and improving operational safety; at the same time, the operating port 9 also provides convenience for adjusting or replacing the clamp 71 during later maintenance, avoiding maintenance difficulties caused by the inability to directly contact the connection parts, and shortening maintenance time.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A purlin connection structure for mounting photovoltaic modules (100) onto a photovoltaic support, characterized in that: The assembly includes a purlin (3), a first engaging component (1), and a second engaging component (2). The first engaging component (1) includes a first mounting part (11) and a first engaging part (12). The second engaging component (2) includes a second mounting part (21) and a second engaging part (22). The first mounting part (11) and the second mounting part (21) are fixedly connected to the purlin (3). The first engaging part (12) and the second engaging part (22) are arranged opposite to each other. The first engaging part (12) is provided with a first slot (121), and the second engaging part (22) is provided with a second slot (221). The first slot (121) and the second slot (221) are used to engage with the frame (110) of the photovoltaic module (100).

2. The purlin connection structure according to claim 1, characterized in that, It also includes a first connector (5), one end of which passes through the first mounting part (11), the second mounting part (21) and the purlin (3) in sequence. The first mounting part (11), the second mounting part (21) and the purlin (3) are respectively provided with connecting holes (4) corresponding to the first connector (5).

3. The purlin connection structure according to claim 2, characterized in that, The first mounting part (11) and the second mounting part (21) are fixedly connected to the bottom of the purlin (3), and the first engaging part (12) and the second engaging part (22) are disposed opposite to each other on both sides of the purlin (3) along a first direction.

4. The purlin connection structure according to claim 3, characterized in that, The first engaging part (12) is disposed at one end of the first mounting part (11) along the first direction and is perpendicular to the first mounting part (11). There are two first engaging parts (12). The two first engaging parts (12) are disposed opposite to each other on both sides of the first mounting part (11) along the second direction, which is perpendicular to the first direction. The second engaging portion (22) is disposed at one end of the second mounting portion (21) along the first direction and is perpendicular to the second mounting portion (21). There are two second engaging portions (22), and the two second engaging portions (22) are disposed opposite to each other on both sides of the second mounting portion (21) along the second direction.

5. A purlin connection structure according to claim 4, characterized in that, The first engaging part (12) and the first mounting part (11) are integrally bent and formed, and the second engaging part (22) and the second mounting part (21) are integrally bent and formed.

6. The purlin connection structure according to claim 2, characterized in that, The connecting hole (4) on the first mounting part (11) and / or the second mounting part (21) is a waist-shaped hole; and / or, the purlin (3) is a square tube.

7. A photovoltaic support structure, characterized in that, It includes a spindle (6), a connecting assembly (7), and a purlin connection structure as described in any one of claims 1 to 6, wherein the connecting assembly (7) is fixedly connected to the spindle (6) and the purlin connection structure.

8. A photovoltaic support according to claim 7, characterized in that, The connecting component (7) is a U-bolt, a through bolt, or a clamp assembly.

9. A photovoltaic support according to claim 8, characterized in that, The connecting component (7) is a clamp assembly, which includes a clamp and a second connector. The bottom of the purlin (3) of the purlin connecting structure is provided with a connection port (8) that allows the clamp to pass through. The two ends of the clamp pass through the connection port (8) respectively and extend downward around the main shaft (6). The two ends are then fixedly connected by the second connector.

10. A photovoltaic support according to claim 9, characterized in that, The upper surface of the purlin (3) is provided with an operating port (9) corresponding to the connection port (8).

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