A windproof fixing structure of a photovoltaic module

Abstract

The utility model discloses a photovoltaic module windproof fixing structure, photovoltaic module has at least one layer toughened glass, is equipped with fixed frame on photovoltaic module, and fixed frame and one layer toughened glass are integrated, and is equipped with the connecting edge of the both sides of photovoltaic module on fixed frame, and is equipped with connecting hole on connecting edge, and fixing structure is equipped with connecting bolt and anti -twist gasket, and is equipped with screw hole on anti -twist gasket, and connecting bolt passes through from connecting hole and is connected with the screw thread connection of anti -twist gasket's screw hole, and anti -twist gasket can cooperate and be clamped in the connecting groove of purline. The utility model can better guarantee that the photovoltaic module after installation will not be lifted by strong wind, and the working strength of installation personnel is reduced, and the trampling time of installation personnel on photovoltaic module is reduced, and the situation that photovoltaic module is destroyed is avoided as far as possible.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module installation technology, specifically relating to a windproof fixing structure for photovoltaic modules. Background Technology

[0002] One common method for installing photovoltaic (PV) modules is to press a clamp onto the long side of the PV module, and then use bolts to pass through the clamp and extend into the connecting groove of the purlin of the bracket for fixation. To reduce costs, the edges of PV modules used for installation are becoming thinner and thinner. Using clamps for fixation, coupled with the fact that the clamp is not an integral part of the PV module, makes it easy for the clamp to loosen and slip in environments with strong winds and large temperature differences. In addition, strong winds can generate upward wind force, which can easily lift or vibrate the PV module, causing damage to the frame of the PV module, and the entire PV module may be blown away by the wind or the frame may separate from the PV module.

[0003] Furthermore, the process of fixing photovoltaic modules using clamps and bolts requires installers to carry a large number of clamps, bolts, nuts, and other fixing parts to the bracket for installation, which is extremely inconvenient. During the process of fixing the photovoltaic modules to the bracket, installers also need to step on the photovoltaic modules to place clamps, bolts, washers, and other fixing parts, and then tighten them. This installation method is time-consuming and labor-intensive, easily causing fatigue for installers, and prolonged standing on the photovoltaic modules during the installation process can easily damage them.

[0004] Therefore, in view of the shortcomings of existing photovoltaic module installation technology, it is necessary to design a windproof fixing structure for photovoltaic modules to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a windproof fixing structure for photovoltaic modules.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A windproof fixing structure for a photovoltaic module, wherein the photovoltaic module has at least one layer of tempered glass, characterized in that: a fixing frame is provided on the photovoltaic module, the fixing frame is integrated with the layer of tempered glass, the fixing frame has connecting edges located on both sides of the photovoltaic module, and the connecting edges have connecting holes; the fixing structure is provided with connecting bolts and anti-torsion washers, the anti-torsion washers have threaded holes, the connecting bolts pass through the connecting holes and are threadedly connected to the threaded holes of the anti-torsion washers, and the anti-torsion washers can be fitted into the connecting grooves of the purlins.

[0008] A further technical solution of this utility model is: the fixing structure is provided with a washer, which is fitted on the connecting bolt and located between the head of the connecting bolt and the connecting edge.

[0009] A further technical solution of this utility model is: the connecting hole is an elongated through hole.

[0010] A further technical solution of this utility model is as follows: the connecting groove of the purlin has inwardly extending limiting edges on both sides of the groove opening. When the anti-torsion washer is connected to the purlin, the anti-torsion washer is located in the connecting groove, and two sides of the anti-torsion washer abut against the inner side of the limiting edge of the purlin.

[0011] A further technical solution of this utility model is as follows: the anti-torsion washer is rectangular, with a short side and a long side. The length of the long side of the anti-torsion washer is greater than the width of the connecting groove of the purlin, and the length of the short side of the anti-torsion washer is less than the width of the connecting groove of the purlin. When the anti-torsion washer is connected to the purlin, the short side of the anti-torsion washer abuts against the inner side of the limiting edge of the purlin.

[0012] A further technical solution of this utility model is as follows: the photovoltaic module is rectangular, with a short side and a long side, and connecting edges are respectively provided at the two long sides of the photovoltaic module.

[0013] A further technical solution of this utility model is that the bottom surface of the photovoltaic module is flush with the bottom surface of the connecting edge.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The photovoltaic module windproof fixing structure of this utility model features a fixed frame on the photovoltaic module, integrating the fixed frame with tempered glass. After installation, when subjected to strong winds, the connection between the tempered glass and the fixed frame will not separate, preventing the photovoltaic module from being lifted and thus better protecting it from damage. Furthermore, because the fixed frame and tempered glass are integrated, the fixing is achieved by directly passing connecting bolts through the connecting holes on the fixed frame, avoiding the loosening issues associated with the clamping block fixing method in the prior art. This is especially effective in preventing the photovoltaic module from becoming loose and being blown away by the wind in environments with strong winds and large temperature differences.

[0016] 2. When installing using the structure of this utility model, connecting bolts and anti-torsion washers can be pre-installed on the ground. Then, the photovoltaic modules are lifted onto the bracket, and the anti-torsion washers are inserted into the connecting grooves of the purlins for connection. It is evident that the installation process eliminates the need for installers to insert bolts onto the bracket, thus reducing the need to carry a large number of bolts. This reduces the installation time of the photovoltaic modules on the bracket, alleviates the workload of the installers, and minimizes the time installers spend stepping on the photovoltaic modules, minimizing the risk of damage. Attached Figure Description

[0017] Figure 1 This is a top view of a photovoltaic module with connecting bolts installed according to an embodiment of the present invention.

[0018] Figure 2 yes Figure 1Schematic diagram of the cross section at point AA;

[0019] Figure 3 This is a schematic diagram of the structure of the anti-torsion washer when it is inserted into the connecting groove of the purlin according to an embodiment of the present invention.

[0020] Meaning of the labels in the attached diagram:

[0021] 1-Photovoltaic module; 2-Fixed frame; 3-Tempered glass; 4-Connecting edge; 5-Connecting bolt; 6-Connecting hole; 7-Washer; 8-Head of connecting bolt; 9-Anti-torsion washer; 10-Threaded hole; 11-Purlin; 12-Connecting groove; 13-Limiting edge. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] The present invention will be further described below with reference to embodiments.

[0026] Example:

[0027] The photovoltaic module 1 involved in the windproof fixing structure of the photovoltaic module in this embodiment is rectangular, with a short side and a long side. The top surface of the photovoltaic module 1 is provided with a layer of tempered glass 3 (the photovoltaic module 1 usually has a multi-layer structure including tempered glass, solar cells, and a backsheet, which will not be described in detail here). A fixing frame 2 is provided around the photovoltaic module 1, and the fixing frame 2 is integrated with the tempered glass 3 on the top surface. The specific process of integrating the tempered glass 3 with the fixing frame 2 adopts existing technology, so it will not be described in detail here.

[0028] In another embodiment, the photovoltaic module 1 may also have tempered glass on the bottom surface, in which case the tempered glass on the bottom surface is not connected to the fixed frame 2 as a whole.

[0029] like Figure 1 and Figure 2 As shown, the fixed frame 2 has two connecting edges 4 located at the two long sides of the photovoltaic module 1, respectively. The bottom surface of the connecting edges 4 is flush with the bottom surface of the photovoltaic module 1. The two ends of the connecting edges 4 are flush with the two ends of the photovoltaic module 1, and the width of the connecting edges 4 is 100mm.

[0030] Each connecting edge 4 is provided with a connecting hole 6. In this embodiment, the connecting hole 6 is an elongated through hole. Specifically, three connecting holes 6 are provided on each connecting edge 4, and the three connecting holes 6 are arranged sequentially along the length of the connecting edge 4. The connecting holes 6 on the two connecting edges 4 are symmetrical about the central axis of the tempered glass 3, and the length of the connecting hole 6 is 300mm-400mm.

[0031] The fixing structure also includes connecting bolts 5, washers 7, and anti-torsion washers 9. In this embodiment, the anti-torsion washer 9 is rectangular, with a short side and a long side, and a thickness of 10mm. The length of the long side of the anti-torsion washer 9 is 2mm greater than the width of the connecting groove 12 of the purlin 11, and the length of the short side of the anti-torsion washer 9 is 2mm less than the width of the connecting groove 12 of the purlin 11.

[0032] like Figure 3 As shown, a threaded hole 10 is provided in the middle of the anti-torsion washer 9. During the fixed connection, the connecting bolt 5 passes through the connecting hole 6 and is threadedly connected to the threaded hole 10 of the anti-torsion washer 9. The washer 7 is fitted on the connecting bolt 5 and is located between the head 8 of the connecting bolt and the connecting edge 4.

[0033] The purlin 11 is part of the bracket for installing the photovoltaic module 1. The connecting groove 12 of the purlin 11 has inwardly extending limiting edges 13 on both sides of its opening. When connecting to the purlin 11, the anti-torsion washer 9 is placed into the connecting groove 12 of the purlin 11, with the short side of the anti-torsion washer 9 positioned below the limiting edge 13. Then, the connecting bolt 5 is tightened, and the two short sides of the anti-torsion washer 9 abut against the inner side of the limiting edge 13, completing the fixed installation.

[0034] The installation process of the photovoltaic module windproof fixing structure in this embodiment is as follows:

[0035] For the brackets used to install photovoltaic modules, they are first fixed in their corresponding positions. The brackets have purlins 11. On the ground, the connecting bolts 5 are pre-inserted into the connecting holes 6 of the photovoltaic modules 1, and washers 7 and anti-torsion washers 9 are pre-attached to the connecting bolts 5. Then, the photovoltaic modules 1 are lifted onto the bracket, and the anti-torsion washers 9 are inserted into the connecting grooves 12 of the purlins 11. Finally, the corresponding connecting bolts 5 are tightened to achieve a fixed connection. It is evident that during the installation process, installers do not need to insert bolts onto the bracket, thus eliminating the need to carry a large number of bolts to the bracket at all times. This reduces the installation time of the photovoltaic modules 1 on the bracket, alleviates the workload of the installers, and minimizes the time installers spend stepping on the photovoltaic modules 1, thus reducing the risk of damage to the photovoltaic modules.

[0036] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A windproof fixing structure for a photovoltaic module, wherein the photovoltaic module has at least one layer of tempered glass, characterized in that: The photovoltaic module is provided with a fixed frame, which is integrated with a layer of tempered glass. The fixed frame is provided with connecting edges located on both sides of the photovoltaic module, and the connecting edges are provided with connecting holes. The fixing structure is provided with connecting bolts and anti-torsion washers. The anti-torsion washers are provided with threaded holes. The connecting bolts pass through the connecting holes and are threadedly connected to the threaded holes of the anti-torsion washers. The anti-torsion washers can be fitted into the connecting grooves of the purlins.

2. The photovoltaic module windproof fixing structure according to claim 1, characterized in that: The fixing structure is provided with a washer, which is fitted onto the connecting bolt and located between the head of the connecting bolt and the connecting edge.

3. The photovoltaic module windproof fixing structure according to claim 1, characterized in that: The connecting hole is a long, narrow through hole.

4. The photovoltaic module windproof fixing structure according to claim 1, characterized in that: The connecting groove of the purlin has inwardly extending limiting edges on both sides of the groove opening. When the anti-torsion washer is connected to the purlin, the anti-torsion washer is located in the connecting groove, and two sides of the anti-torsion washer abut against the inner side of the limiting edge of the purlin.

5. The photovoltaic module windproof fixing structure according to claim 4, characterized in that: The anti-torsion washer is rectangular and has a short side and a long side. The length of the long side of the anti-torsion washer is greater than the width of the connecting groove of the purlin, and the length of the short side of the anti-torsion washer is less than the width of the connecting groove of the purlin. When the anti-torsion washer is connected to the purlin, the short side of the anti-torsion washer abuts against the inner side of the limiting edge of the purlin.

6. The photovoltaic module windproof fixing structure according to claim 1, characterized in that: The photovoltaic module is rectangular, with a short side and a long side, and the connecting edge is provided at the two long sides of the photovoltaic module.

7. The photovoltaic module windproof fixing structure according to claim 1, characterized in that: The bottom surface of the photovoltaic module is flush with the bottom surface of the connecting edge.

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