Low-attenuation solar photovoltaic module

Abstract

The utility model provides a low-attenuation solar photovoltaic assembly, and relates to the technical field of solar photovoltaic assemblies, the low-attenuation solar photovoltaic assembly comprises a main frame body, a fixed plate, an installation rail, a photovoltaic plate and a junction box, and the connecting end of the bottom end of the junction box is provided with a dustproof sleeve; according to the utility model, the lead is inserted into the clamping cylinder and passes through the other end of the double-end thread bushing, then the other end of the double-end thread bushing is sleeved with the sealing ring, the double-end thread bushing is screwed into the bottom end of the junction box, and the sealing ring can fill a gap between the other end of the double-end thread bushing and the junction box to ensure the sealing performance; when the junction box is used, the fixing sleeve is screwed at one end of the double-end thread sleeve, the conical groove in the fixing sleeve extrudes the clamping cylinder to contract inwards to clamp the wire so as to fix the position of the wire, and the other sealing ring is just located in a filling gap between the fixing sleeve and the wire, so that the sealing performance between the junction box and the wire is ensured; and dust is prevented from invading the joint of the junction box and the wire to affect electric energy transmission.

Description

Technical Field

[0001] This utility model relates to the field of solar photovoltaic module technology, and in particular to a low-attenuation solar photovoltaic module. Background Technology

[0002] Solar photovoltaic modules are products made by connecting multiple individual solar cells in series and parallel as needed, and encapsulating them with special materials and special manufacturing processes. Their function is to convert solar energy into electrical energy, which can be sent to batteries for storage or directly power loads. Low-degradation solar photovoltaic modules, as the name suggests, refer to photovoltaic modules with a low rate of performance degradation during use. This performance degradation is mainly caused by environmental factors such as light, temperature, and humidity, as well as material aging. Low-degradation modules effectively reduce the impact of these factors by using advanced materials and processes, thereby extending the lifespan of the modules and increasing power generation efficiency.

[0003] Since solar photovoltaic modules are placed outdoors for a long time, dust can easily enter through the junction box's connection port, interfering with the connection between the connecting wires and the solar panel. This reduces the efficiency of power transmission, thereby affecting power generation efficiency and reducing the practicality of the solar photovoltaic module. Therefore, this utility model proposes a low-attenuation solar photovoltaic module to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a low-attenuation solar photovoltaic module to solve the issue in the prior art where dust easily enters through the junction box's connection ports, causing interference between the connecting wires and the solar panel, resulting in reduced power transmission efficiency and thus affecting power generation efficiency.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a low-attenuation solar photovoltaic module, including a main frame, fixing plates, mounting rails, photovoltaic panels and junction boxes. A set of fixing plates are symmetrically fixed to both sides of the bottom of the main frame. The top of the main frame is fixed with mounting rails through an angle adjustment mechanism. A photovoltaic panel is provided on the inner side of the mounting rails. A junction box is provided on the back side of the photovoltaic panel. A dust cover is provided at the connection end of the bottom of the junction box.

[0006] A further improvement is made in that: the dust cover includes a locking sleeve, a clamp, a fixing sleeve, and a sealing ring; the bottom end of the junction box is symmetrically threaded with a double-ended threaded sleeve; a locking sleeve is inserted into one end of the double-ended threaded sleeve; a clamp is provided at one end of the locking sleeve; a fixing sleeve is threaded to one end of the double-ended threaded sleeve; and sealing rings are symmetrically provided at both ends of the double-ended threaded sleeve.

[0007] A further improvement is that one end of the clamp is designed as a conical structure, the inside of the fixing sleeve is provided with a conical groove, and the inner wall of the clamp is engaged with the outer wall of the connecting line.

[0008] A further improvement is made in that: the angle adjustment mechanism includes a rotating shaft, a rotating disk, a limiting hole, and a fastening bolt. The rotating shaft is symmetrically fixedly connected to both sides of the top of the main frame. The rotating disk is hinged to the outside of the rotating shaft. The top of the rotating disk is fixedly connected to the bottom of the mounting rail. The bottom of the rotating disk is provided with multiple limiting holes, and a fastening bolt is inserted into one of the limiting holes.

[0009] A further improvement is that: the top of the main frame is provided with a through hole, one end of the fastening bolt passes through the through hole and is threaded with a nut, and multiple limiting holes are distributed in an arc shape at the bottom of the rotating disk.

[0010] A further improvement is that: the photovoltaic panel has a frame on its outer side, the frame is made of aluminum, an assembly plate is provided between the frame and the mounting rail, a set of fixing bolts are symmetrically provided on both sides of the assembly plate, and the two sides of the assembly plate are detachably connected to the mounting rail and the frame respectively by fixing bolts.

[0011] A further improvement is that the photovoltaic panel includes solar cells, a backsheet, glass, and an encapsulating film. The solar cells are disposed above the backsheet, and encapsulating films are symmetrically arranged on the top and bottom of the solar cells. Glass is disposed above the solar cells. The encapsulating film is made of ethylene-vinyl acetate, and the backsheet is made of polyamide.

[0012] The beneficial effects of this utility model are as follows: A sealing ring is fitted onto one end of the double-ended threaded sleeve, then a retaining sleeve is inserted into the inside of the retaining sleeve, and then a clamp is inserted into the inside of the retaining sleeve. The clamp engages with the inner wall of the double-ended threaded sleeve through the retaining sleeve, thereby fixing the clamp inside one end of the double-ended threaded sleeve. Then, the wire is inserted into the clamp and passes through the other end of the double-ended threaded sleeve. The sealing ring is then fitted onto the other end of the double-ended threaded sleeve and screwed into the bottom of the junction box. This sealing ring fills the gap between the other end of the double-ended threaded sleeve and the junction box to ensure a seal. After the wire is connected to the junction box, the fixing sleeve is tightened onto one end of the double-ended threaded sleeve. The conical groove inside the fixing sleeve will squeeze the clamp inward to clamp the wire, thereby fixing the position of the wire. The other sealing ring is precisely positioned between the fixing sleeve and the wire to fill the gap, ensuring the seal between the junction box and the wire and preventing dust from entering the connection between the junction box and the wire, which would affect the transmission of electrical energy. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2This is a side view of the present invention;

[0015] Figure 3 This is a schematic diagram of the junction box structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the dust cover structure of this utility model.

[0017] In the diagram: 1. Main frame; 2. Fixing plate; 3. Mounting rail; 4. Photovoltaic panel; 5. Junction box; 6. Dust cover; 7. Double-ended threaded sleeve; 8. Positioning sleeve; 9. Clamp; 10. Fixing sleeve; 11. Sealing ring; 12. Rotating shaft; 13. Rotating disk; 14. Limiting hole; 15. Fastening bolt; 16. Assembly plate; 17. Frame. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a low-attenuation solar photovoltaic module, including a main frame 1, fixing plates 2, mounting rails 3, photovoltaic panels 4, and junction boxes 5. A set of fixing plates 2 are symmetrically fixed to both sides of the bottom of the main frame 1. The top of the main frame 1 is fixed to the mounting rails 3 via an angle adjustment mechanism. Photovoltaic panels 4 are mounted on the inner side of the mounting rails 3, and junction boxes 5 are mounted on the back side of the photovoltaic panels 4. A dust cover 6 is provided at the bottom connection end of the junction boxes 5. In use, the photovoltaic panels 4 are fixed inside the mounting rails 3 for... The photovoltaic panel 4 is installed on the top of the main frame 1. The top of the main frame 1 is equipped with an angle adjustment mechanism, which can adjust the angle of the photovoltaic panel 4 to match the sunlight angle of the area where the photovoltaic panel 4 is located. The electrical energy generated by the photovoltaic panel 4 absorbing sunlight is transmitted to an external battery for storage through the wires connected to the junction box 5. The dust cover 6 can seal the gap between the wires and the junction box 5 to prevent dust from entering the connection between the junction box 5 and the wires and affecting the transmission of electrical energy. The anchor screws are inserted into the ground through the mounting holes inside the fixing plate 2 to fix the main frame 1.

[0020] The dust cover 6 includes a locking sleeve 8, a clamping sleeve 9, a fixing sleeve 10, and a sealing ring 11. The bottom end of the junction box 5 is symmetrically threaded with a double-ended threaded sleeve 7. One end of the double-ended threaded sleeve 7 is inserted with a locking sleeve 8. One end of the locking sleeve 8 is provided with a clamping sleeve 9. One end of the double-ended threaded sleeve 7 is threadedly connected with a fixing sleeve 10. The two ends of the double-ended threaded sleeve 7 are symmetrically provided with sealing rings 11. One end of the clamping sleeve 9 is designed as a conical head structure. The inside of the fixing sleeve 10 is provided with a conical groove. The inner wall of the clamping sleeve 9 is engaged with the outer wall of the connecting wire.

[0021] A sealing ring 11 is fitted onto one end of the double-ended threaded sleeve 7. Then, a retaining sleeve 8 is inserted into the inside of the retaining sleeve 8, and a clamp 9 is inserted into the inside of the retaining sleeve 8. The clamp 9 engages with the inner wall of the double-ended threaded sleeve 7 through the retaining sleeve 8, thereby fixing the clamp 9 inside one end of the double-ended threaded sleeve 7. Then, the wire is inserted into the clamp 9 and passes through the other end of the double-ended threaded sleeve 7. The sealing ring 11 is then fitted onto the other end of the double-ended threaded sleeve 7 and screwed into the bottom end of the junction box 5. This sealing ring 11 fills the gap between the other end of the double-ended threaded sleeve 7 and the junction box 5 to ensure a seal. After the wire is connected to the junction box 5, the fixing sleeve 10 is tightened onto one end of the double-ended threaded sleeve 7. The conical groove inside the fixing sleeve 10 will squeeze the clamp 9 inward to clamp the wire, thereby fixing the position of the wire. The other sealing ring 11 is exactly located between the fixing sleeve 10 and the wire to fill the gap, thereby ensuring a seal between the junction box 5 and the wire.

[0022] The angle adjustment mechanism includes a rotating shaft 12, a rotating disk 13, a limiting hole 14, and a fastening bolt 15. The rotating shaft 12 is symmetrically fixedly connected to both sides of the top of the main frame 1. The rotating disk 13 is hinged to the outside of the rotating shaft 12. The top of the rotating disk 13 is fixedly connected to the bottom of the mounting rail 3. The bottom of the rotating disk 13 is provided with multiple limiting holes 14, and a fastening bolt 15 is inserted into one of the limiting holes 14.

[0023] The top of the main frame 1 is provided with a through hole, one end of the fastening bolt 15 passes through the through hole and is threaded with a nut, and a plurality of the limiting holes 14 are distributed in an arc shape at the bottom of the rotating disk 13.

[0024] Unscrew the nut at one end of the fastening bolt 15, and then pull the fastening bolt 15 out of the limiting hole 14 to release the limiting of the rotating disk 13 to the top of the main frame 1, so that the rotating disk 13 can rotate at the center of the rotating shaft 12 on the top of the main frame 1. The rotating disk 13 is connected to the photovoltaic panel 4 through the mounting rail 3 to drive it to rotate to a suitable angle. Then, re-insert the fastening bolt 15 into the limiting hole 14 parallel to the through hole at the top of the main frame 1, and one end of the fastening bolt 15 passes through the through hole. Finally, tighten the nut at one end of the fastening bolt 15. The nut and the fastening bolt 15 cooperate to clamp the rotating disk 13 and the top of the main frame 1 again to lock the angle of the mounting rail 3 after adjustment.

[0025] The photovoltaic panel 4 has a frame 17 on its outer side. The frame 17 is made of aluminum. An assembly plate 16 is provided between the frame 17 and the mounting rail 3. A set of fixing bolts is symmetrically provided on both sides of the assembly plate 16. The two sides of the assembly plate 16 are detachably connected to the mounting rail 3 and the frame 17 respectively through the fixing bolts. The photovoltaic panel 4 is inserted into the interior of the mounting rail 3. Then, the two assembly plates 16 are respectively placed against the connection points on both sides of the frame 17. Fixing bolts are tightened on both sides of the two assembly plates 16. The fixing bolts pass through the interior of the assembly plate 16, the mounting rail 3 and the frame 17 to install the photovoltaic panel 4 on the mounting rail 3, that is, to install the photovoltaic panel 4 on the top of the main frame 1.

[0026] The photovoltaic panel 4 includes solar cells, a backsheet, glass, and an encapsulating film. The solar cells are disposed above the backsheet, and encapsulating films are symmetrically arranged on the top and bottom of the solar cells. Glass is disposed above the solar cells. The encapsulating film is made of ethylene-vinyl acetate, and the backsheet is made of polyamide. High-quality materials, such as high-quality EVA and backsheet materials, are selected to reduce power attenuation caused by material aging. The ethylene-vinyl acetate encapsulating material improves its resistance to environmental factors.

[0027] The solar photovoltaic module has a sealing ring 11 fitted onto one end of a double-threaded sleeve 7. Next, a retaining sleeve 8 is inserted into the retaining sleeve 8, and then a clamp 9 is inserted into the retaining sleeve 8. The clamp 9 engages with the inner wall of the double-threaded sleeve 7 through the retaining sleeve 8, thus fixing the clamp 9 inside one end of the double-threaded sleeve 7. Then, a wire is inserted into the clamp 9 and passes through the other end of the double-threaded sleeve 7. Finally, the sealing ring 11 is fitted onto the other end of the double-threaded sleeve 7 and screwed into the bottom of the junction box 5. This sealing ring 11 can... The gap between the other end of the double-threaded sleeve 7 and the junction box 5 is filled to ensure a seal. After the wire is connected to the junction box 5, the fixing sleeve 10 is tightened on one end of the double-threaded sleeve 7. The conical groove inside the fixing sleeve 10 will squeeze the clamp 9 inward to clamp the wire and fix its position. The other sealing ring 11 is located between the fixing sleeve 10 and the wire to fill the gap, ensuring the seal between the junction box 5 and the wire and preventing dust from entering the connection between the junction box 5 and the wire and affecting the transmission of power.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-attenuation solar photovoltaic module, comprising a main frame (1), a fixing plate (2), a mounting rail (3), a photovoltaic panel (4), and a junction box (5), characterized in that: A set of fixing plates (2) are symmetrically fixed to both sides of the bottom of the main frame (1). The top of the main frame (1) is fixed with an installation rail (3) through an angle adjustment mechanism. A photovoltaic panel (4) is provided on the inner side of the installation rail (3). A junction box (5) is provided on the back side of the photovoltaic panel (4). A dust cover (6) is provided at the bottom connection end of the junction box (5). The dust cover (6) includes a locking sleeve (8), a clamp (9), a fixing sleeve (10), and a sealing ring (11). The bottom end of the junction box (5) is symmetrically threaded with a double-ended threaded sleeve (7). One end of the double-ended threaded sleeve (7) is inserted with a locking sleeve (8). One end of the locking sleeve (8) is provided with a clamp (9). One end of the double-ended threaded sleeve (7) is threadedly connected with a fixing sleeve (10). The two ends of the double-ended threaded sleeve (7) are symmetrically provided with sealing rings (11).

2. The low-attenuation solar photovoltaic module according to claim 1, characterized in that: One end of the clamp (9) is provided with a conical head structure, the inside of the fixing sleeve (10) is provided with a conical groove, and the inner wall of the clamp (9) is engaged with the outer wall of the connecting line.

3. A low-attenuation solar photovoltaic module according to claim 1, characterized in that: The angle adjustment mechanism includes a rotating shaft (12), a rotating disk (13), a limiting hole (14), and a fastening bolt (15). The rotating shaft (12) is symmetrically fixedly connected to both sides of the top of the main frame (1). The rotating disk (13) is hinged to the outside of the rotating shaft (12). The top of the rotating disk (13) is fixedly connected to the bottom of the mounting rail (3). The bottom of the rotating disk (13) is provided with multiple limiting holes (14), and a fastening bolt (15) is inserted into one of the limiting holes (14).

4. A low-attenuation solar photovoltaic module according to claim 3, characterized in that: The top of the main frame (1) is provided with a through hole, one end of the fastening bolt (15) passes through the through hole and is threaded with a nut, and a plurality of the limiting holes (14) are distributed in an arc shape at the bottom of the rotating disk (13).

5. A low-attenuation solar photovoltaic module according to claim 4, characterized in that: The photovoltaic panel (4) has a frame (17) on its outer side. The frame (17) is made of aluminum. An assembly plate (16) is provided between the frame (17) and the mounting rail (3). A set of fixing bolts is symmetrically provided on both sides of the assembly plate (16). The two sides of the assembly plate (16) are detachably connected to the mounting rail (3) and the frame (17) respectively by fixing bolts.

6. A low-attenuation solar photovoltaic module according to claim 1, characterized in that: The photovoltaic panel (4) includes solar cells, a backsheet, glass, and an encapsulating film. The solar cells are disposed above the backsheet. Encapsulating films are symmetrically disposed on the top and bottom of the solar cells. Glass is disposed above the solar cells. The encapsulating film is made of ethylene-vinyl acetate, and the backsheet is made of polyamide.

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