A special fixing fastener for photovoltaic module connectors

Abstract

This utility model discloses a special fixing fastener for photovoltaic module connectors, including a fastener and a photovoltaic panel for auxiliary installation. The fastener consists of a clamping part and a fastening part. The fastening part is located at the edge of the clamping part and smoothly transitions to the clamping part. The photovoltaic panel includes a panel surface, a frame, a junction box, and an MC4 connector. The frame is fixedly connected to the edge of the panel surface, and the junction box is fixedly connected to the back of the panel surface. The junction box contains a connecting cable, and the end of the connecting cable is fixedly connected to the MC4 connector. The clamping part is fastened to the surface of the MC4 connector, and the fastening part is fastened to the frame. This utility model uses a U-shaped fastener made of elastic steel plate, which facilitates the use of the fastener to wrap around and fix the MC4 connector. Combined with the fastening part at the upper end of the fastener, it is easy to insert the fastener into the fixing holes on the surface of the frame, improving the stability of the MC4 connector fixing and the ease of assembly and disassembly.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, specifically a special fixing fastener for photovoltaic module connectors. Background Technology

[0002] Solar photovoltaic (PV) modules are composite structures consisting of a carrier and solar cell chips. They generate electricity using solar radiation and include current extraction devices and cables. With the development of photovoltaic technology, PV modules have gained widespread application. Today, energy supply is scarce worldwide, and a large number of sustainable new energy sources are attracting widespread attention. Among these, the utilization of solar energy is receiving increasing attention. As an energy device, solar cells are being used more and more widely due to their unique functions compared to other energy devices and their outstanding advantages in cleanliness and environmental friendliness.

[0003] Currently, the MC4 connectors in distributed photovoltaic (PV) modules are typically located in the gap between two module panels. Frequent rain exposure can lead to short circuits due to water contact. Furthermore, this connector is suspended below the module, and frequent wind and swaying can cause the structure to loosen, resulting in poor connections and increasing the risk of arcing, fire, or disconnection. Therefore, a dedicated fixing fastener for PV module connectors is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a special fixing fastener for photovoltaic module connectors, solving the problem that MC4 connectors in distributed photovoltaic projects are prone to swaying and loosening when suspended below the module. This utility model utilizes a U-shaped fastener made of elastic steel plate, which facilitates the use of the fastener to secure the MC4 connector. The fastening part at the upper end of the fastener allows for easy insertion and connection between the fastener and the fixing holes on the frame surface, improving the stability of the MC4 connector and the ease of assembly and disassembly. The outwardly bent limiting clip at the end of the fastening part greatly increases the stability of the connection between the fastener and the fixing hole, preventing the MC4 connector from swaying in the wind and getting wet in the rain, and making it less prone to loosening and falling off.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a special fixing fastener for photovoltaic module connectors, comprising a fastener and a photovoltaic panel for auxiliary installation. The fastener consists of a clamping part and a fastening part. The fastening part is located at the edge of the clamping part and is smoothly connected to the clamping part. The photovoltaic panel includes a panel surface, a frame, a junction box, and an MC4 connector. The frame is fixedly connected to the edge of the panel surface, and the junction box is fixedly connected to the back of the panel surface. A connecting cable is provided inside the junction box, and the end of the connecting cable is fixedly connected to an MC4 connector. The clamping part is fastened to the surface of the MC4 connector, and the fastening part is fastened to the frame.

[0008] As an improvement to the above technical solution, a fixing hole is provided on the lower surface of the frame, and the fastening part is embedded in the fixing hole and detachably connected to the fixing hole.

[0009] As an improvement to the above technical solution, the fasteners are U-shaped and are made of elastic steel plate by integral stamping.

[0010] As an improvement to the above technical solution, the upper end of the fastening part is provided with an integrally bent limiting card, which protrudes to both sides.

[0011] As an improvement to the above technical solution, the lower end of the fastening part is provided with a necking section, and the opening width of the necking section is smaller than the width of the limiting card.

[0012] (III) Beneficial Effects

[0013] This utility model provides a special fixing fastener for photovoltaic module connectors. It has the following advantages:

[0014] 1. This utility model uses elastic steel plates to make U-shaped fasteners, which facilitates the use of fasteners to wrap around and fix the MC4 connector. With the fastening part at the upper end of the fastener, it is easy to insert the fastener into the fixing hole on the surface of the frame, thereby improving the stability of fixing the MC4 connector and the convenience of assembly and disassembly.

[0015] 2. This utility model greatly increases the stability of the connection between the fastener and the fixing hole by providing an outwardly bent limiting card at the end of the fastening part, avoiding the MC4 connector from shaking in the wind and getting wet in the rain, and making it less likely to loosen and fall off. Attached Figure Description

[0016] Figure 1 This is a side view of the structure of the photovoltaic module connector fastener of this utility model;

[0017] Figure 2 This is a top view of the structure of the photovoltaic module connector fastener of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the fastener of this utility model.

[0019] In the diagram: Fastener-1, Photovoltaic panel-2, Clamping part-3, Fastening part-4, Panel surface-5, Frame-6, Junction box-7, MC4 connector-8, Connecting cable-9, Fixing hole-10, Limiting clip-11, Neck section-12. 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 protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a special fixing fastener for photovoltaic module connectors, including a fastener 1 and a photovoltaic panel 2 for auxiliary installation. The fastener 1 consists of a clamping part 3 and a fastening part 4. The fastening part 4 is located at the edge of the clamping part 3 and is smoothly connected to the clamping part 3. The photovoltaic panel 2 includes a panel surface 5, a frame 6, a junction box 7, and an MC4 connector 8. The frame 6 is fixedly connected to the edge of the panel surface 5. The junction box 7 is fixedly connected to the back of the panel surface 5. A connecting cable 9 is provided inside the junction box 7. The end of the connecting cable 9 is fixedly connected to the MC4 connector 8. The clamping part 3 is fastened to the surface of the MC4 connector 8, and the fastening part 4 is fastened to the frame 6.

[0022] In a further improvement, a fixing hole 10 is provided on the lower surface of the frame 6, and the fastening part 4 is embedded in the fixing hole 10 and detachably connected to the fixing hole 10. By providing a fixing hole 10 on the lower surface of the frame 6, it is convenient to fasten and connect with the fastener 1, and to fix the MC4 connector 8.

[0023] Further improvements include a U-shaped fastener 1, which is integrally stamped from an elastic steel plate. By integrally stamping the fastener 1 from an elastic steel plate, the production efficiency of the fastener 1 is improved, while the production cost is reduced.

[0024] In a further improvement, the upper end of the fastening part 4 is provided with an integrally bent limiting card 11, which protrudes to both sides. By providing an outwardly protruding limiting card 11 at the upper end of the fastening part 4, it is convenient to fasten after inserting into the fixing hole 10, thereby improving the stability of the fastener 1 connection and facilitating disassembly and assembly.

[0025] Specifically, the lower end of the fastening part 4 is provided with a necking section 12, the opening width of which is smaller than the width of the limiting card 11. By providing a necking section 12 at the lower end of the fastening part 4, it is convenient to embed it into the fixing hole 10 and connect it with the fixing hole 10.

[0026] In use, the MC4 connector 8 on the back of the photovoltaic panel 2 is connected to the cable. Then, the fastener 1 is respectively connected to both ends of the MC4 connector 8. The neck section 12 of the fastener 1 is manually squeezed to make the fastening part 4 retract inward. The end of the limiting card 11 is aligned with the fixing hole 10 on the lower surface of the frame 6 and inserted. When the elastic material fastener 1 is released, it rebounds. After the outward protruding limiting card 11 rebounds, its opening is larger than the opening of the fixing hole 10, thus completing the installation and fixing of the fastener 1. This improves the stability and convenience of fixing the MC4 connector 8, avoids the MC4 connector 8 from shaking in the wind and getting wet in the rain, and makes it less likely to loosen and fall off.

[0027] This invention addresses the problem that the MC4 connector in distributed photovoltaic (PV) modules is typically located in the gap between two module panels. Frequent rain exposure can lead to short circuits. Furthermore, since this connector is suspended below the module, frequent wind and swaying can cause it to loosen, leading to arcing, fire, or disconnection. This invention utilizes a U-shaped fastener 1 made of elastic steel plate to easily secure the MC4 connector 8. The fastener 1, along with its upper snap-fit ​​part 4, facilitates insertion and connection between the fastener 1 and the fixing holes 10 on the surface of the frame 6, improving the stability of the MC4 connector 8 and the ease of assembly and disassembly. The outwardly bent limiting clip 11 at the end of the snap-fit ​​part 4 greatly increases the stability of the connection between the fastener 1 and the fixing holes 10, preventing the MC4 connector 8 from swaying in the wind and getting wet, and making it less prone to loosening and falling off.

[0028] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0029] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A special fixing fastener for photovoltaic module connectors, comprising a fastener (1) and a photovoltaic panel (2) for auxiliary installation, characterized in that: The fastener (1) consists of a clamping part (3) and a fastening part (4). The fastening part (4) is located at the edge of the clamping part (3) and is smoothly connected to the clamping part (3). The photovoltaic panel (2) includes a panel surface (5), a frame (6), a junction box (7), and an MC4 connector (8). The frame (6) is fixedly connected to the edge of the panel surface (5). The junction box (7) is fixedly connected to the back of the panel surface (5). A connecting cable (9) is provided inside the junction box (7). The end of the connecting cable (9) is fixedly connected to the MC4 connector (8). The clamping part (3) is fastened to the surface of the MC4 connector (8). The fastening part (4) is fastened to the frame (6).

2. The photovoltaic module connector fixing fastener according to claim 1, characterized in that: The lower surface of the frame (6) is provided with a fixing hole (10), and the fastening part (4) is embedded in the fixing hole (10) and is detachably connected to the fixing hole (10).

3. The photovoltaic module connector fastener according to claim 1, characterized in that: The fasteners (1) are distributed in a U-shape and are made of elastic steel plate by integral stamping.

4. A special fixing fastener for photovoltaic module connectors according to claim 1, characterized in that: The upper end of the fastening part (4) is provided with an integrally bent limiting card (11), and the limiting card (11) protrudes to both sides respectively.

5. A special fixing fastener for photovoltaic module connectors according to claim 1, characterized in that: The lower end of the fastening part (4) is provided with a necking section (12), and the opening width of the necking section (12) is smaller than the width of the limiting card (11).

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