Photovoltaic module grounding frame with piercing function

Abstract

The utility model provides a photovoltaic module ground -connection frame with puncture function relates to photovoltaic support technical field, including frame and puncture subassembly. This photovoltaic module ground -connection frame with puncture function fixes puncture subassembly in the side of frame, makes the sharp of moving plate aim at the contact area of photovoltaic support, ensures that the sharp and support surface preliminary contact. Spring exerts the thrust along the spring axis direction to moving plate because of precompression state, and the sharp punctures the oxide film on the surface of support and contacts with aluminium alloy base material along the vertical groove of outer frame and is pushed to the support direction sliding, and forms the conductive path. With the lapse of time, the aluminium alloy base material of support contact point reacts with air, and when the oxide film is regenerated, the moving plate is manually pushed to slide, the sharp cuts the newly generated oxide film again, maintains the conductive state of contact point, avoids the contact interruption, realizes the continuous puncture of oxide film, ensures that the ground -connection path is long -term stable.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic bracket technology, and in particular to a photovoltaic module grounding frame with piercing function. Background Technology

[0002] Photovoltaic modules are typically supported and protected by metal frames, which can become live under certain circumstances, especially in the event of a system failure. A grounding frame connects the frame to the ground via electrical grounding, ensuring that even in the event of leakage or other problems, current can safely flow to the earth, thus reducing electrical hazards.

[0003] The frames of photovoltaic modules are typically made of aluminum alloy (for lightweighting and corrosion resistance). Aluminum alloy itself is a conductive metal, but a dense oxide film (Al2O3) naturally forms on its surface. This oxide film blocks the conductive path, preventing electrical conductivity even when the support frame is in contact with the module frame, thus hindering grounding. Therefore, the oxide film must be broken through to expose the conductive aluminum alloy substrate, allowing the support frame (or grounding conductor) to form a conductive connection and achieve grounding.

[0004] Existing puncture methods (such as using metal spikes or bolts) break the local oxide film with mechanical force, allowing the metal contact point to conduct directly. However, this "fixed puncture" has an inherent defect: the oxide film of aluminum alloy has "self-healing properties." After being punctured, the exposed aluminum alloy substrate will react with oxygen in the air to regenerate a dense oxide film, covering the contact point and forming an insulating layer again. Utility Model Content

[0005] This invention provides a photovoltaic module grounding frame with puncture function, which solves the problem mentioned in the background art that the exposed aluminum alloy substrate after puncture will react with oxygen in the air to regenerate a dense oxide film, cover the contact point, and form an insulating layer again.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic module grounding frame with piercing function, comprising a frame and a piercing component. The frame supports the photovoltaic module, and the piercing component is provided at the bottom side of the frame. The piercing component includes an outer frame and a movable plate. The outer frame is a hollow structure, with a horizontal groove through one side and a vertical groove through the upper surface of the outer frame. An inner extension block is fixed on the inner side wall of the vertical groove of the outer frame. The movable plate is inserted into the horizontal groove. Springs are fixedly connected to the four corners of the upper and lower surfaces of the movable plate. The free ends of the springs are fixed to the inner extension blocks, and the springs are connected between the inner extension blocks and the movable plate. Outer protrusion plates are fixedly connected to the center of the upper and lower surfaces of the movable plate, and multiple spikes are evenly distributed and fixedly connected to the surface of the outer protrusion plates.

[0007] Preferably, one end of the frame is fixedly connected to a rotating shaft, which is rotatably connected inside the rotating base.

[0008] Preferably, a connecting plate is fixedly connected to the inner side of the frame, and an alignment protrusion is fixedly connected to the bottom of the other end of the frame.

[0009] Preferably, wiring terminals are installed on the end face of the outer frame.

[0010] Preferably, both sides of the movable plate extend outward from the transverse groove, and an extension plate is fixed to one side of the movable plate.

[0011] Preferably, the length of the movable plate is smaller than the length of the transverse groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The piercing assembly is fixed to the side of the frame, with the spikes of the moving plate aligned with the contact area of ​​the photovoltaic bracket, ensuring initial contact between the spikes and the bracket surface. The spring, in its pre-compressed state, applies a thrust along its axis to the moving plate, pushing it along the vertical groove of the outer frame towards the bracket. The spikes pierce the oxide film on the bracket surface, contacting the aluminum alloy substrate and forming a conductive path. As time passes, the aluminum alloy substrate at the bracket contact point reacts with the air, reforming the oxide film. Artificially pushing the moving plate further causes the spikes to pierce the newly formed oxide film again, maintaining the conductivity at the contact point. Furthermore, when environmental changes cause minor deformation of the bracket, the spring's elasticity allows it to stretch or shorten, ensuring the spikes remain in contact with the bracket and frame, preventing interruption of contact and achieving continuous oxide film piercing, thus ensuring long-term stability of the grounding path. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the grounding frame structure of the photovoltaic module with piercing function according to this utility model.

[0015] Figure 2 This is a schematic diagram of the grounding frame of the photovoltaic module with piercing function of this utility model in a flipped state;

[0016] Figure 3 This is a schematic diagram of the puncture component structure of this utility model;

[0017] Figure 4 This is a top view of the piercing component of this utility model;

[0018] Figure 5 This is a cross-sectional view of the movable plate and outer frame of this utility model.

[0019] The following are the labeling elements in the diagram: 1. Frame; 11. Rotary shaft; 12. Connecting plate; 13. Alignment protrusion; 2. Rotary seat; 3. Piercing assembly; 31. Outer frame; 311. Horizontal groove; 312. Vertical groove; 313. Inner extension block; 314. Spring; 32. Moving plate; 321. Outer protrusion plate; 322. Spike; 323. Edge extension plate; 4. Terminal block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] This utility model provides a photovoltaic module grounding frame with piercing function. Specifically, this utility model provides a photovoltaic module grounding frame 1 with piercing function, such as... Figure 1 and Figure 2 As shown, the device includes a frame 1 and a piercing assembly 3. The frame 1 is used to support the photovoltaic module. The piercing assembly 3 is provided on the bottom side of the frame 1. The piercing assembly 3 includes an outer frame 31 and a movable plate 32. The outer frame 31 is a hollow structure. A horizontal groove 311 is opened through one side of the outer frame 31. A vertical groove 312 is opened through the upper surface of the outer frame 31. An inner extension block 313 is fixed on the inner side wall of the vertical groove 312 of the outer frame 31. The movable plate 32 is inserted into the horizontal groove 311. Springs 314 are fixedly connected at the four corners of the upper and lower surfaces of the movable plate 32. The free end of the spring 314 is fixed on the inner extension block 313. The spring 314 is connected between the inner extension block 313 and the movable plate 32. An outer protruding plate 321 is fixedly connected at the center of the upper and lower surfaces of the movable plate 32. Multiple spikes 322 are evenly distributed and fixedly connected on the surface of the outer protruding plate 321.

[0022] like Figure 1 and Figure 2As shown, a rotating shaft 11 is fixedly connected to one end of frame 1, and the rotating shaft 11 is rotatably connected inside the rotating base 2. A connecting plate 12 is fixedly connected to the inner side of frame 1, and the photovoltaic module is fixed inside frame 1 through the connecting plate 12. An alignment protrusion 13 is fixedly connected to the bottom of the other end of frame 1. The rotating base 2 is fixed to the photovoltaic bracket, and the frame 1 is rotated so that the alignment protrusion 13 at the other end of frame 1 fits against the bracket. A fixing bolt is inserted into the threaded hole on the alignment protrusion 13 to completely fix frame 1 to the photovoltaic bracket.

[0023] like Figure 3 As shown, a terminal block 4 is installed on the end face of the outer frame 31.

[0024] The outer frame 31, movable plate 32, spike 322, and terminal 4 of the piercing component 3 are all made of conductive metal, preferably stainless steel. A continuous conductive path is formed between the components, and an external grounding wire can be connected to the terminal 4.

[0025] like Figure 4 and Figure 5 As shown, both sides of the movable plate 32 extend outward from the transverse groove 311, and an extension plate 323 is fixed to one side of the movable plate 32. The length of the movable plate 32 is smaller than the length of the transverse groove 311. This ensures that the movable plate 32 slides freely within the transverse groove 311, while the extension plate 323 acts as a limit to prevent the movable plate 32 from sliding out of the transverse groove 311.

[0026] The present invention is adopted as shown in Figure 1 and Figure 2 As shown, during installation, the piercing component 3 is fixed to the bottom side of the frame 1, aligning the spikes 322 of the moving plate 32 with the contact area of ​​the photovoltaic bracket, ensuring initial contact between the spikes 322 and the bracket surface. The spring 314, in its pre-compressed state, applies a thrust along its axis to the moving plate 32, pushing it to slide along the vertical groove 312 of the outer frame 31 towards the bracket. The spikes 322 pierce the oxide film on the bracket surface, contacting the aluminum alloy substrate and forming a conductive path: "bracket → spikes 322 → moving plate 32 → outer frame 31 → terminal 4 → grounding wire → ground". As time passes, the aluminum alloy substrate at the bracket contact point reacts with the air to regenerate an oxide film. When the moving plate 32 is manually pushed to slide, the spikes 322 again pierce the newly formed oxide film, maintaining the conductivity of the contact point. Furthermore, when environmental changes (such as temperature fluctuations or slight vibrations) cause minor deformation of the support, the spring 314 extends or shortens under the elastic action of the spring 314, ensuring that the spike 322 can always abut against the support and frame 1 and always be in contact with its surface, avoiding interruption of contact, realizing continuous piercing of the oxide film, and ensuring long-term stability of the grounding path.

[0027] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A photovoltaic module grounding frame with piercing function, comprising a frame (1) for supporting the photovoltaic module, characterized in that, It also includes a piercing component (3), which is provided on the bottom side of the frame (1). The piercing component (3) includes an outer frame (31) and a movable plate (32). The outer frame (31) is a hollow structure. A horizontal groove (311) is provided through one side of the outer frame (31), and a vertical groove (312) is provided through the upper surface of the outer frame (31). An inner extension block (313) is fixed on the inner wall of the vertical groove (312) of the outer frame (31). The movable plate (32) is inserted into the frame. In the transverse groove (311), springs (314) are fixedly connected at the four corners of the upper and lower surfaces of the movable plate (32). The free ends of the springs (314) are fixed on the inner extension block (313). The springs (314) are connected between the inner extension block (313) and the movable plate (32). Outer protrusions (321) are fixedly connected at the center of the upper and lower surfaces of the movable plate (32). Multiple spikes (322) are evenly distributed and fixedly connected on the surface of the outer protrusions (321).

2. The photovoltaic module grounding frame with piercing function according to claim 1, characterized in that, One end of the frame (1) is fixedly connected to a rotating shaft (11), which is rotatably connected inside the rotating base (2).

3. The photovoltaic module grounding frame with piercing function according to claim 2, characterized in that, A connecting plate (12) is fixedly connected to the inner side of the frame (1), and an alignment protrusion (13) is fixedly connected to the bottom of the other end of the frame (1).

4. The photovoltaic module grounding frame with piercing function according to claim 1, characterized in that, A wiring terminal (4) is installed on the end face of the outer frame (31).

5. The photovoltaic module grounding frame with piercing function according to claim 1, characterized in that, Both sides of the movable plate (32) extend outward from the transverse groove (311), and an extension plate (323) is fixed on one side of the movable plate (32).

6. The photovoltaic module grounding frame with piercing function according to claim 5, characterized in that, The length of the movable plate (32) is smaller than the length of the transverse groove (311).

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