Tear-resistant locking gasket for photovoltaic frame and photovoltaic module

Abstract

The utility model relates to the technical field of new energy, and discloses a tear-resistant locking gasket for a photovoltaic frame and a photovoltaic module. The bottom of the photovoltaic frame is provided with a mounting plate extending to the outer side, and the mounting plate is provided with a mounting hole for mounting the mounting plate to an external mounting structure through a fastener; the tear-resistant locking gasket comprises a gasket body installed on the surface of the installation plate, the gasket body is connected with an extending part, the outer wall of the extending part is attached to the inner wall of the installation hole, and the gasket body and the extending part are each provided with a through hole for a fastener to make contact with and be fixedly installed. One side of the gasket body is connected with a clamping structure which is clamped with the extension end of the mounting plate, and the other side of the gasket body is also connected with a connecting structure which is in contact with the inner side surface of the photovoltaic frame. The tear-resistant locking gasket can isolate a mounting hole from a fastener, avoid direct stress at the mounting hole, protect the mounting hole, disperse or transfer stress at the mounting hole, ensure reliability and safety of mounting and fixing of a photovoltaic module and the fastener, and avoid risks of tearing of a photovoltaic frame and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, in particular to a tear-resistant stop gasket for a photovoltaic frame and a photovoltaic module. Background Art

[0002] Currently, all world technology development plans are related to energy. Solar photovoltaic power generation is green and environmentally friendly. As one of the main energy sources, its development and promotion are inevitable. However, due to the increasingly harsh outdoor environmental conditions that photovoltaic modules need to face, the relevant quality assurance test requirements for photovoltaic modules are becoming more and more stringent, and the safety requirements during actual operation are also getting higher and higher. The photovoltaic frame, as an important part of the solar energy system, is crucial for the safe operation of photovoltaic modules. How to ensure the connection reliability and safety of photovoltaic modules during relevant tests and outdoor actual installation and operation is one of the important topics in the industry.

[0003] During relevant load tests and outdoor actual installation of the photovoltaic frame of a photovoltaic module, holes (i.e., mounting holes) will be opened at corresponding positions. The strength at the mounting holes will be greatly reduced. When bolts are used to connect and install and fix the mounting hole position of the photovoltaic frame to other external devices, under machine loads and external forces such as wind, snow, and hail during simulation tests and actual operation, stress concentration will occur at the mounting hole position of the photovoltaic frame, resulting in easy deformation and tearing of the mounting hole position of the photovoltaic frame, and the bolt connection is likely to become loose, leading to the failure of the installation connection of the photovoltaic module and even potential safety accidents.

[0004] In view of the above situation, the prior art, such as the one with the publication number CN220254432U, provides a tear-proof fixing component for a photovoltaic module and a photovoltaic module. The tear-proof fixing component includes upper and lower collars and fasteners; the upper collar includes a mounting piece and a sleeve connected below the mounting piece. The sleeve adheres to and reinforces the inner peripheral wall of the first mounting hole to prevent the material at the part of the first mounting hole in contact with the fastener from suffering from fatigue failure, deformation, and tearing risks due to stress concentration under long-term high loads.

[0005] However, for the installation method of using the upper and lower collars and the sleeve of the existing tear-proof fixing component to reinforce the inner peripheral wall of the mounting hole, after being subjected to external forces, the final stress point is still at the mounting hole of the photovoltaic frame. Although it can assist in strengthening the strength of the mounting hole of the photovoltaic frame to a certain extent, it has no obvious improvement effect on the low strength and stress concentration at the opening of the photovoltaic frame. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a tear-resistant stop gasket for a photovoltaic frame and a photovoltaic module.

[0007] Based on this, the utility model discloses a tear-resistant stop gasket for a photovoltaic frame. An installation plate extending outward is provided at the bottom of the photovoltaic frame, and the installation plate is provided with installation holes for installing it to an external installation structure through fasteners; the tear-resistant stop gasket includes: a gasket body installed on the surface of the installation plate, the gasket body is connected with an extension part, the outer wall of the extension part is attached to the inner wall of the installation hole, and through holes for the fasteners to contact and fixedly install are correspondingly arranged on both the gasket body and the extension part; a clamping structure for clamping with the extension end of the installation plate is connected to one side of the gasket body, and a connecting structure for contacting the inner side surface of the photovoltaic frame is also connected to the other side of the gasket body.

[0008] Preferably, a hook angle is provided at the extension end of the installation plate;

[0009] The clamping structure is a clamping block with a cross-section in the shape of "∣", the lower end of the clamping block is connected to one side of the gasket body, and the upper end of the clamping block contacts and clamps the hook angle.

[0010] Preferably, the connecting structure includes a horizontal section, one side surface of the horizontal section is connected to the other side of the gasket body, and the other side surface of the horizontal section contacts and clamps the inner side surface of the photovoltaic frame.

[0011] Further preferably, the cross-section of the connecting structure is in the shape of "7", the connecting structure further includes a vertical section, the lower end of the vertical section is connected to the other side of the gasket body, and the upper end of the vertical section is connected to one side surface of the horizontal section.

[0012] Even more preferably, the fastener is a threaded fastener, which includes a bolt and a nut threadedly connected to the lower end of the bolt, and the upper end of the bolt is a bolt head;

[0013] The distance between the inner side surface of the vertical section and the center of the through hole matches the distance between the outer side surface of the bolt head and the center of the bolt head, so that the inner side surface of the vertical section contacts and prevents the bolt head from moving;

[0014] The distance between the inner side surface of the vertical section and the center of the through hole is 6 - 10 mm.

[0015] Preferably, the distance between the outer side walls of the connecting structure and the clamping structure is less than or equal to the distance between the inner side surface of the photovoltaic frame and the outer side surface of the hook angle;

[0016] The distance between the outer side walls of the connecting structure and the clamping structure is 15 - 30 mm.

[0017] Preferably, the height of the extension part is greater than the thickness of the installation plate to prevent the fastener from directly contacting the installation hole;

[0018] The height of the extension part is 0.5 - 2 mm.

[0019] Preferably, the through hole is a straight groove through hole that matches the mounting hole. The diameter of the straight groove through hole is 6 - 8 mm, and the length of the straight groove through hole is 10 - 14 mm.

[0020] Preferably, the anti - tearing stop gasket is made of a metal alloy of steel or aluminum.

[0021] The present utility model also discloses a photovoltaic module, which includes a photovoltaic frame and an anti - tearing stop gasket for a photovoltaic frame as described above in the content of the present utility model.

[0022] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0023] For the anti - tearing stop gasket of the present utility model, through the cooperation of the extension part, the through hole and the mounting hole, and the cooperation of the gasket body and the mounting plate, it can not only fix the mounting plate to the external mounting structure by the fastener, but also assist in enhancing the strength at the mounting hole of the photovoltaic frame, and can prevent the fastener from directly contacting the low - strength mounting hole during the fixed installation process, effectively isolating the mounting hole and the fastener, preventing the stress concentration at the mounting hole from causing a tearing risk, and playing a good protective role for the mounting hole.

[0024] Moreover, through the clamping cooperation of the clamping structure and the extension end of the mounting plate, and the contact cooperation of the connecting structure and the inner side surface of the photovoltaic frame; when the connection part of the fastener is stressed, the force can be transmitted through the gasket body to the clamping structure and the connecting structure, and then the force is respectively transmitted to the relatively high - strength extension end of the mounting plate and the inner side surface of the photovoltaic frame through the clamping structure and the connecting structure to disperse or transfer the stress at the mounting hole, effectively improving the situation of low strength and stress concentration at the mounting hole of the photovoltaic frame, and effectively preventing risks such as fatigue failure, deformation, and tearing of the mounting hole.

[0025] In addition, even if the mounting hole of the photovoltaic frame is torn due to stress, this anti - tearing stop gasket, under the triple limitation of the through hole that matches the failed mounting hole, the relatively high - strength part of the photovoltaic frame (such as the inner side surface of the photovoltaic frame, the extension end of the mounting plate) and the fastener, can still effectively maintain the installation and fixation of the photovoltaic frame and the overall photovoltaic module for a period of time, extend the service life of the photovoltaic module, and further reduce the risk of installation failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic cross - sectional structure diagram of a mounting fastener of a photovoltaic module in this embodiment.

[0027] Figure 2 For Figure 1 The partial enlarged view of the label A in the figure.

[0028] Figure 3Schematic cross-sectional structure diagram of a tear-resistant stop gasket for a photovoltaic frame in this embodiment.

[0029] Figure 4 Schematic three-dimensional structure diagram of a tear-resistant stop gasket for a photovoltaic frame in this embodiment.

[0030] Explanation of the reference numerals in the attached drawings: Photovoltaic frame 1; mounting plate 11; mounting hole 111; hook angle 112;

[0031] Fastener 2; bolt 21; bolt head 211; nut 22;

[0032] Tear-resistant stop gasket 3; gasket body 31; extension part 32; through hole 33; clamping structure 34; connection structure 35; vertical section 351; horizontal section 352. Detailed implementation manners

[0033] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0034] Embodiment

[0035] A photovoltaic module in this embodiment, see Figure 1-2 , including a photovoltaic frame 1. An installation plate 11 extending outward (such as to the right side in Figure 1 ) is provided at the bottom of the photovoltaic frame 1. The installation plate 11 is provided with an installation hole 111; the installation hole 111 is used to install the installation plate 11 to an external installation structure (such as an installation rail, an installation bracket, etc.) through a fastener 2, so as to realize the fixed installation of the photovoltaic module in an outdoor environment. A hook angle 112 bent upward and inward is further provided at the extended end of the installation plate 11.

[0036] Specifically, the fastener 2 is a threaded fastener, and the threaded fastener includes a bolt 21 and a nut 22. The lower end of the bolt 21 is threadedly connected to the nut 22 to fixedly install the installation plate 11 to an external installation structure, and the upper end of the bolt 21 is a bolt head 211.

[0037] The photovoltaic module further includes a tear-resistant stop gasket 3 installed on the installation plate 11.

[0038] A tear-resistant stop gasket for a photovoltaic frame in this embodiment, see Figure 2-3 , including: a gasket body 31; during fixed installation, the gasket body 31 is attached to the upper surface of the installation plate 11.

[0039] Among them, the gasket body 31 is connected with an extension part 32 extending downward, and the outer wall of the extension part 32 is attached to the inner wall of the mounting hole 111; and through holes 33 are correspondingly arranged on both the gasket body 31 and the extension part 32. During fixed installation, the lower end of the bolt 21 of the fastener 2 directly contacts and passes through the through hole 33, and then the nut 22 is threadedly connected to the lower end of the bolt 21, so that the mounting plate 11 can be fixedly installed on the external mounting structure through the fastener 2.

[0040] In this way, through the cooperation of the extension part 32, the through hole 33 and the mounting hole 111, and the cooperation of the gasket body 31 and the mounting plate 11, not only can the fastener 2 fixedly install the mounting plate 11 on the external mounting structure, but also can assist in enhancing the strength at the mounting hole 111 of the photovoltaic frame 1, and can prevent the fastener 2 from directly contacting the low-strength mounting hole 111 during the fixed installation process, effectively isolating the mounting hole 111 from the fastener 2, preventing the risk of tearing caused by stress concentration at the mounting hole 111 of the photovoltaic frame 1, and playing a good protective role for the mounting hole 111.

[0041] In order to play a better auxiliary strengthening role for the mounting hole 111, the material of the anti-tearing stop gasket 3 is preferably a steel metal alloy or an aluminum metal alloy, and the anti-tearing stop gasket 3 can also be matched with a soft material such as silicone rubber.

[0042] Furthermore, the height of the extension part 32 is greater than the thickness of the mounting plate 11 to effectively prevent the fastener 2 from directly contacting the mounting hole 111. In practice, the height of the extension part 32 is 0.5 - 2 mm (such as 0.5 mm, 1 mm, 1.5 mm or 2 mm).

[0043] Among them, one side of the gasket body 31 (such as Figure 2 the right side shown) is connected with a clamping structure 34 extending upward to be clamped with the hook angle 112. Specifically, the clamping structure 34 is a block with a cross-section in the shape of "∣", the lower end of the block is connected to one side of the gasket body 31 (such as Figure 2 the right side shown), and the upper end of the block contacts and clamps the hook angle 112.

[0044] In this way, after the force is applied at the connection of the bolt 21, the force can be transmitted to the higher-strength part of the photovoltaic frame 1 (such as the hook angle 112) through the gasket body 31 and the clamping structure 34 in sequence, so as to disperse or transfer the force at the mounting hole 111, preventing risks such as deformation and tearing at the mounting hole 111 with weak strength due to excessive force.

[0045] Moreover, the other side of the gasket body 31 (such as Figure 2On the left side shown, a connection structure 35 that is snap-connected to the inner side surface of the photovoltaic frame 1 is also connected. In this way, after the bolt 21 joint is stressed, the force can be transmitted to a stronger part of the photovoltaic frame 1 (such as the inner side surface of the photovoltaic frame 1) through the gasket body 31 and the connection structure 35 in sequence, so as to further disperse or transfer the stress at the mounting hole 111, and further prevent risks such as deformation and tearing at the mounting hole 111 with weak strength due to excessive stress.

[0046] Specifically, the distance between the outer side wall of the connection structure 35 and the outer side wall of the snap connection structure 34 is less than or equal to the distance between the inner side surface of the photovoltaic frame 1 and the outer side surface of the hook angle 112. In this way, the snap connection structure 34 can be snap-connected to the hook angle 112, and the connection structure 35 can also be snap-connected to the inner side surface of the photovoltaic frame 1. In practice, the distance between the outer side wall of the connection structure 35 and the outer side wall of the snap connection structure 34 is 15 - 30 mm (such as 15 mm, 20 mm, 25 mm or 30 mm).

[0047] Specifically, referring to Figure 2-3 , the connection structure 35 includes a horizontal section 352 (as shown in Figure 3 ), the right side surface of the horizontal section 352 is connected to the left side of the gasket body 31, and the left side surface of the horizontal section 352 contacts and is clamped to the inner side surface of the photovoltaic frame 1. Further, the connection structure 35 also includes a vertical section 351 (as shown in Figure 3 ), the lower end of the vertical section 351 is connected to the left side of the gasket body 31, and the upper end of the vertical section 351 is connected to the right side surface of the horizontal section 352. In this way, the cross-section of the connection structure 35 is in the shape of a "7".

[0048] Furthermore, the distance between the inner side surface of the vertical section 351 and the center of the through hole 33 matches the distance between the outer side surface of the bolt head 211 and the center of the bolt head 211; in this way, the inner side surface of the vertical section 351 contacts and prevents the bolt head 211 from moving, restricting the self-rotation of the bolt 21 to achieve a stopping effect, making the self-rotation of the bolt 21 limited after installation, effectively avoiding the risk of the bolt 21 slipping and loosening due to stress and affecting the fixing installation effect, and enabling the photovoltaic frame 1 to be fixed and installed more safely and reliably. In practice, the distance between the inner side surface of the vertical section 351 and the center of the through hole 33 is 6 - 10 mm (such as 6 mm, 7 mm, 8 mm, 9 mm or 10 mm).

[0049] The anti-tearing stop gasket for the photovoltaic frame of this embodiment, through the snap-fit of the snap-fit structure 34 and the hook angle 112, and the snap-fit of the connection structure 35 and the inner side surface of the photovoltaic frame 1; when the connection of the bolt 21 is stressed, the force can be transmitted to the gasket body 31, and the gasket body 31 then transmits the force to the snap-fit structure 34 and the connection structure 35, and then the force is respectively transmitted to the relatively strong hook angle 112 of the photovoltaic frame 1 and the inner side surface of the photovoltaic frame 1 through the snap-fit structure 34 and the connection structure 35, so as to disperse or transfer the stress at the mounting hole 111, and avoid the stress at the weak part of the strength of the mounting hole 111 as much as possible, effectively improving the situation that the strength of the mounting hole 111 of the photovoltaic frame 1 is low and stress concentration occurs, and effectively preventing risks such as fatigue failure, deformation, and tearing of the mounting hole 111. Moreover, the vertical section 351 of the connection structure 35 can also effectively avoid the risk of the bolt 21 slipping and loosening due to stress, which affects the fixing and installation effect, so that the fastener 2 can fix and install the photovoltaic frame 1 to the external installation structure more safely and reliably. In addition, even if the mounting hole 111 of the photovoltaic frame 1 is torn due to stress, the anti-tearing stop gasket for the photovoltaic frame of this embodiment, under the triple limitation of the through hole 33 that matches the failed mounting hole 111, the relatively strong part of the photovoltaic frame 1 (such as the inner side surface of the photovoltaic frame 1, the hook angle 112) and the bolt 21, can still effectively maintain the installation and fixation of the photovoltaic frame 1 and the overall photovoltaic module for a period of time, extend the service life of the photovoltaic module, and further reduce the risk of installation failure.

[0050] In practice, the through hole 33 can be a straight slot through hole 33, a circular through hole 33, or other shaped through holes 33 that can match the sizes of the mounting hole 111 and the bolt 21. The through hole 33 is preferably a straight slot through hole 33 that matches the mounting hole 111 (as Figure 4 shown); in practice, the diameter (width) of the straight slot through hole 33 is 6-8 mm (such as 6 mm, 7 mm, or 8 mm), and the length of the straight slot through hole 33 is 10-14 mm (such as 10 mm, 11 mm, 12 mm, 13 mm, or 14 mm).

[0051] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0052] The above has introduced the technical solution provided by the present utility model in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A tear-resistant stop gasket for a photovoltaic frame. An installation plate extending outward is provided at the bottom of the photovoltaic frame, and the installation plate is provided with installation holes for installing it to an external installation structure through fasteners; it is characterized in that, The anti-tearing stop gasket includes: a gasket body installed on the surface of the mounting plate, the gasket body is connected with an extension part, the outer wall of the extension part is attached to the inner wall of the mounting hole, and through holes for the fastener to contact and be fixedly installed are correspondingly arranged on both the gasket body and the extension part; a clamping structure that is connected to one side of the gasket body and is clamped with the extended end of the mounting plate is arranged on one side of the gasket body, and a connecting structure that contacts the inner side surface of the photovoltaic frame is also connected to the other side of the gasket body.

2. The anti-tearing stop gasket for a photovoltaic frame according to claim 1, characterized in that, The extended end of the mounting plate is provided with a hook angle. The clamping structure is a block with a cross-section in the shape of "∣", the lower end of the block is connected to one side of the gasket body, and the upper end of the block contacts and clamps the hook angle.

3. The anti-tearing stop gasket for a photovoltaic frame according to claim 1, characterized in that, The connecting structure includes a horizontal section, one side surface of the horizontal section is connected to the other side of the gasket body, and the other side surface of the horizontal section contacts and clamps the inner side surface of the photovoltaic frame.

4. The anti-tearing stop gasket for a photovoltaic frame according to claim 3, characterized in that, The cross-section of the connecting structure is in the shape of "7", and the connecting structure further includes a vertical section, the lower end of the vertical section is connected to the other side of the gasket body, and the upper end of the vertical section is connected to one side surface of the horizontal section.

5. The anti-tearing stop gasket for a photovoltaic frame according to claim 4, characterized in that, The fastener is a threaded fastener, which includes a bolt and a nut threadedly connected to the lower end of the bolt, and the upper end of the bolt is a bolt head. The distance between the inner side surface of the vertical section and the center of the through hole matches the distance between the outer side surface of the bolt head and the center of the bolt head, so that the inner side surface of the vertical section contacts and prevents the bolt head from moving. The distance between the inner side surface of the vertical section and the center of the through hole is 6 - 10 mm.

6. The anti-tearing stop gasket for a photovoltaic frame according to claim 1, characterized in that, The distance between the outer side wall of the connecting structure and the outer side wall of the clamping structure is less than or equal to the distance between the inner side surface of the photovoltaic frame and the outer side surface of the hook angle. The distance between the outer side wall of the connecting structure and the outer side wall of the clamping structure is 15 - 30 mm.

7. The anti-tearing stop gasket for a photovoltaic frame according to claim 1, wherein, The height of the extension part is greater than the thickness of the mounting plate to prevent the fastener from directly contacting the mounting hole. The height of the extension part is 0.5 - 2 mm.

8. The anti-tearing stop gasket for a photovoltaic frame according to claim 1, characterized in that, The through hole is a straight groove through hole that matches the mounting hole, the diameter of the straight groove through hole is 6 - 8 mm, and the length of the straight groove through hole is 10 - 14 mm.

9. The anti-tearing stop gasket for a photovoltaic frame according to claim 1, characterized in that, The anti-tearing stop gasket is made of a metal alloy of steel or aluminum.

10. A photovoltaic module, characterized in that, It includes a photovoltaic frame and an anti-tearing stop gasket for a photovoltaic frame according to any one of claims 1 - 9.

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