Photovoltaic grounding assembly and photovoltaic support pressing and fixing device

Abstract

The utility model relates to the technical field of photovoltaic supports, in particular to a photovoltaic grounding assembly and a photovoltaic support pressing and fixing device, which comprise a conductive rivet, the conductive rivet is of a hollow cylindrical structure, and the top of the conductive rivet is provided with a piercing notch for piercing a non-conductive layer on a metal surface. The hollow cylinder structure is adopted to replace a solid cone, the stress area and the structural strength are better, the non-conducting layer plated on the surface of metal is broken through by means of the breaking-through notch of the hollow cylinder, deformation or passivation is not prone to happening when shearing force is borne, and the service life of the hollow cylinder structure is prolonged. And the long-term conductive stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a photovoltaic grounding component and a photovoltaic support clamping device. Background Technology

[0002] In photovoltaic power generation systems, to ensure system safety and prevent lightning strikes and static electricity accumulation, effective electrical grounding of photovoltaic supports and modules is essential. Currently, one common grounding conductivity method is to use conductive sheets or conductive rivets with conical heads. Conductive sheets are typically thin stainless steel sheets that achieve conductivity by piercing the non-conductive layer (such as galvanized layer, coating, etc.) on the metal surface through multiple sharp holes; while conical rivets rely on their conical heads to pierce the non-conductive layer.

[0003] For example, the patent document with publication number CN222953372U discloses a conductive medium pressure of a solar panel, including a medium pressure block, an internal hexagonal bolt, a spring, a conductive sheet and a locking block. The upper surface of the medium pressure block is provided with a reinforcing rib in the middle position, and the reinforcing rib is provided with a groove that matches the internal hexagonal bolt.

[0004] For example, patent document CN204597852U discloses an integrated device for grounding and fastening photovoltaic modules, including: a ballast block, on the lower surface of the horizontal sheet of the inverted "L"-shaped pressure plate, a plurality of conical nails are connected; a pull block, on the upper surface of the pull block, a plurality of conical nails are connected; and a connecting rod, the two ends of the connecting rod being fixedly connected to the ballast block at the upper end and the pull block at the lower end, respectively.

[0005] In practical applications, it still has the following shortcomings: the multiple puncture holes on the existing conductive sheet are prone to shear passivation when they rub against the track or pressure block for a long time and move relative to each other, resulting in failure of the puncture point and a decrease or even loss of conductivity; the head of the conical rivet is also prone to passivation when subjected to shear force, and its structural strength is limited and its shear resistance is weak. Utility Model Content

[0006] This invention provides a photovoltaic grounding component and a photovoltaic support clamping device, which can effectively solve the above-mentioned problems.

[0007] This utility model is implemented as follows:

[0008] A photovoltaic grounding component includes a conductive rivet, which is a hollow cylindrical structure and has a penetration cut at the top for penetrating the non-conductive layer of a metal surface. The penetration cut is one of a flat cut, an outer conical cut, or an inner conical cut.

[0009] As a further improvement, the flat cut of the conductive rivet is a flat cut perpendicular to the axis of the hollow cylinder.

[0010] As a further improvement, the outer tapered cut of the conductive rivet is a tapered cut that gradually slopes and contracts from the outer surface of the conductive rivet to the inner surface.

[0011] As a further improvement, the inner tapered cut of the conductive rivet is a tapered cut that gradually expands from the inner surface of the conductive rivet to the outer surface.

[0012] A photovoltaic bracket clamping device includes a clamping block, a locking block located below the clamping block and fitting with a track groove, and an adjusting bolt that passes through the clamping block from top to bottom and is threaded to the top of the locking block. The conductive rivet is fixedly installed on the clamping block to break through the non-conductive layer on the track surface, and the breaking cut is set towards the inner wall of the track.

[0013] As a further improvement, the card block is provided with mounting holes for fixing conductive rivets. When the card block is assembled with the track, the top of the conductive rivet with a piercing cut contacts the metal substrate of the track.

[0014] The beneficial effects of this utility model are:

[0015] This invention replaces a solid cone with a hollow cylindrical structure, resulting in a better force-bearing area and structural strength. The hollow cylinder penetrates the non-conductive layer coated on the metal surface through its piercing cut, making it less prone to deformation or passivation when subjected to shear force, thus ensuring long-term conductive stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the conductive rivet with a flat cut provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the conductive rivet with an external conical cut provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the conductive rivet with an inner conical cut provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the photovoltaic bracket clamping device provided by this utility model;

[0021] Figure 5This is an exploded structural diagram of the photovoltaic support clamping device provided by this utility model;

[0022] Figure 6 This is a schematic diagram of the card block provided by this utility model;

[0023] Figure 7 This is a schematic diagram of the connection between the photovoltaic bracket clamping device and the track provided by this utility model.

[0024] In the diagram: 1. Conductive rivet; 2. Pressure block; 3. Track; 4. Clamping block; 41. Mounting hole; 5. Adjusting bolt. Detailed Implementation

[0025] All embodiments of this utility model are intended to fall within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating that the purpose, technical solution, and advantages of the method are clearer. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort indicate or imply the relative importance of the indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] The multiple puncture holes on existing conductive sheets are prone to shear passivation when subjected to long-term friction and relative movement with the track or pressure block, leading to puncture point failure and decreased or even loss of conductivity. Similarly, the head of a conical rivet is also prone to passivation when subjected to shear force, and its structural strength is limited, resulting in weak shear resistance. To solve the above-mentioned technical problems, this paper proposes the following technical solution:

[0028] Reference Figures 1-7As shown, a photovoltaic grounding component includes a conductive rivet 1, which is a hollow cylindrical structure and has a penetration cut at the top for penetrating the non-conductive layer of the metal surface. The penetration cut is one of a flat cut, an outer conical cut, or an inner conical cut.

[0029] In use, the oxide layer or coating on the track surface is pierced by the piercing cut at the top of the conductive rivet under pressure, forming direct contact between metals and achieving a reliable electrical connection.

[0030] This invention uses a hollow cylindrical structure instead of a solid cone, resulting in a better force-bearing area and structural strength. The hollow cylinder breaks through the non-conductive layer plated on the surface of the metal, making it less prone to deformation or passivation when subjected to shear force, thus ensuring long-term conductive stability.

[0031] The flat cut of the conductive rivet 1 is a flat cut perpendicular to the axis of the hollow cylinder.

[0032] The outer conical cut of the conductive rivet 1 is a conical cut that gradually slopes and contracts from the outer surface of the conductive rivet 1 to the inner surface, forming a sharp cone tip that has a strong piercing ability. Moreover, the conical structure can effectively disperse stress when subjected to shear force, thereby improving shear resistance.

[0033] The inner conical cut of the conductive rivet 1 is a conical cut that gradually expands from the inner surface of the conductive rivet 1 to the outer surface, forming a sharp edge that has better puncture stability and shear resistance, effectively preventing passivation caused by long-term friction; when under pressure, the inner conical cut can evenly distribute stress, reduce the risk of local deformation, and thus maintain the long-lasting conductivity of the puncture point.

[0034] A photovoltaic bracket clamping device includes a clamping block 2, a locking block 4 located below the clamping block 2 and fitting into the groove of a track 3, and an adjusting bolt 5 that passes through the clamping block 2 from top to bottom and is threaded to the top of the locking block 4. The conductive rivet 1 is fixedly installed on the clamping block 2 to break through the non-conductive layer on the surface of the track 3, and the breaking cut is set towards the inner wall of the track 3.

[0035] When the adjusting bolt is tightened, the locking block is pulled upward, causing the penetration cut of the conductive rivet to penetrate the inner wall of the track, breaking through the non-conductive layer on the surface, thereby achieving a reliable electrical connection between the locking block and the metal substrate of the track.

[0036] During installation, first place the locking block 4 with conductive rivets 1 into the groove of the track 3, then place the pressure block 2 at the predetermined position on the top of the track 3, so that the adjusting bolt 5 passes through the pressure block 2 and the locking block 4 from top to bottom and engages with the threaded hole in the locking block 4; when the adjusting bolt 5 is tightened, the locking block 4 is pulled upward, so that the conductive rivets 1 installed on its upper surface are tightly attached to the inner top wall of the track 3. During this process, the piercing cut at the top of the conductive rivet 1 pierces the zinc plating layer or other non-conductive coating on the inner wall surface of the track 3 under the action of strong clamping force, and forms a tight mechanical contact and electrical connection with the metal substrate of the track 3, such as aluminum alloy or steel. The current can be conducted to the track 3 through the locking block 4 and the conductive rivets 1, thereby achieving effective grounding or equipotential connection.

[0037] When the position of the photovoltaic panel or pressure block 2 needs to be adjusted, simply loosen the adjusting bolt 5. At this time, the pressure between the locking block 4 and the conductive rivet 1 and the inner wall of the track 3 is released, and the entire clamping assembly can be easily slid along the track to the new position. Then, tighten the bolt again to restore the fixation and conductive connection. This process avoids harmful relative sliding and shearing between the conductive parts and the track, protecting the conductive contact points.

[0038] The locking block 4 is provided with mounting holes 41 for fixing the conductive rivet 1. When the locking block 4 and the track 3 are assembled, the top of the conductive rivet 1 has a piercing cut that contacts the metal substrate of the track 3.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photovoltaic grounding module, characterized in that: It includes a conductive rivet (1), which is a hollow cylindrical structure and has a penetration cut at the top for penetrating the non-conductive layer of the metal surface. The penetration cut is one of a flat cut, an outer conical cut, or an inner conical cut.

2. A photovoltaic grounding module as described in claim 1, characterized in that: The flat cut of the conductive rivet (1) is a flat cut perpendicular to the axis of the hollow cylinder.

3. A photovoltaic grounding module as described in claim 1, characterized in that: The outer conical cut of the conductive rivet (1) is a conical cut formed by gradually tilting and contracting from the outer surface of the conductive rivet (1) to the inner surface.

4. A photovoltaic grounding module as described in claim 1, characterized in that: The inner conical cut of the conductive rivet (1) is a conical cut that gradually expands from the inner surface of the conductive rivet (1) to the outer surface.

5. A photovoltaic support clamping device, characterized in that: The photovoltaic grounding component according to any one of claims 1-4 has a structure including a pressure block (2), a locking block (4) located below the pressure block (2) and fitting with the groove of the track (3), and an adjusting bolt (5) that runs from top to bottom through the pressure block (2) and is threaded to the top of the locking block (4). The conductive rivet (1) is fixedly installed on the pressure block (2) to break through the non-conductive layer on the surface of the track (3), and the breaking cut is set towards the inner wall of the track (3).

6. The photovoltaic support clamping device as described in claim 5, characterized in that: The card block (4) is provided with mounting holes (41) for fixing the conductive rivet (1). When the card block (4) and the track (3) are assembled, the top of the conductive rivet (1) breaks through and contacts the metal substrate of the track (3).

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