A wiring structure of a bifacial photovoltaic module

Abstract

The utility model relates to photovoltaic module technical field discloses a wiring structure of double -sided photovoltaic module, including double -sided photovoltaic board, the double -sided photovoltaic board outer wall fixedly connected with the frame, the frame outer wall fixedly connected with the junction box, the junction box upper end snap -fit connection has the box cover, the junction box right -hand member is connected with the sleeve through screw component, the sleeve right -hand member outer wall fixedly connected with second limit ring, the sleeve outer wall sliding connection has the taper interface, the taper interface right -hand member inner wall rotation is connected with the extension pipe, two winding rollers are connected with in the extension pipe middle end through rotating component. In the utility model, the junction box is arranged on the side of the frame to reduce the light blocking, the cable is hidden in the pipe body to prevent wear, the waterproof design prolongs the service life, and the extension pipe is adjustable, the cable is wound on the winding roller through the rotating rod, the management problem is solved, the cable is not easy to be damaged, the practicality and the reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to a wiring structure for a bifacial photovoltaic module. Background Technology

[0002] With the growth of global energy demand and the increasing awareness of environmental protection, photovoltaic (PV) modules, as a clean and renewable energy device, have been widely used. Bifacial PV modules, due to their ability to absorb reflected and scattered light on the back side of the module, thereby improving power generation efficiency, have gradually become a research hotspot in the PV field. In practical applications, the wiring structure of PV modules directly affects their installation efficiency, safety, and lifespan; therefore, designing an efficient and reliable wiring structure is particularly important.

[0003] However, existing photovoltaic (PV) module wiring structures have many problems. For example, traditional junction boxes are usually located on the front or back of the PV module, which can easily block the sunlight-receiving surface and affect power generation efficiency. In addition, cables are often exposed during wiring, making them susceptible to wear and tear from dragging on the ground or rainwater intrusion, which can cause safety hazards. Furthermore, existing structures lack effective cable management, leading to cables easily becoming tangled and knotted, affecting the neatness and reliability of the installation. Therefore, there is an urgent need for a bifacial PV module wiring structure that can reduce shading of the sunlight-receiving surface, improve waterproof performance, and optimize cable management to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wiring structure for a bifacial photovoltaic module. By placing the junction box on the side of the frame to reduce shading of the light-receiving surface, hiding the cables in the tube to prevent wear, and using a waterproof design to extend the lifespan, the extension tube is adjustable. Furthermore, by using a rotating rod to wind the cables onto the winding roller, management problems are solved, ensuring that the cables are not easily damaged, and improving practicality and reliability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wiring structure for a bifacial photovoltaic module, comprising a bifacial photovoltaic panel, a frame fixedly connected to the outer wall of the bifacial photovoltaic panel, a junction box fixedly connected to the outer wall of the frame, a cover snapped onto the upper end of the junction box, a sleeve connected to the right end of the junction box via a threaded assembly, a second limiting ring fixedly connected to the outer wall of the right end of the sleeve, a tapered interface slidably connected to the outer wall of the sleeve, an extension tube rotatably connected to the inner wall of the right end of the tapered interface, and two winding rollers connected to the middle end of the extension tube via a rotating assembly.

[0006] Furthermore, the threaded assembly includes a threaded interface fixedly connected to the right side of the junction box, a mating ring being threadedly connected to the outer wall of the threaded interface, and a first limiting ring being rotatably connected to the right end of the mating ring, the first limiting ring being fixedly connected to the outer wall of the left end of the sleeve.

[0007] Furthermore, the rotating assembly includes a fixed block fixedly connected to the rear side of the middle end of the extension tube, a connecting rod rotatably connected to the inner wall of the fixed block, a rotating rod fixedly connected to one end of the connecting rod, and the winding roller fixedly connected to the other end of the connecting rod.

[0008] Furthermore, the left end of the extension tube is sleeved outside the sleeve, and the winding roller is disposed inside the extension tube.

[0009] Furthermore, a flap is rotatably connected to the upper side of the middle end of the extension tube via a hinge, and the front end of the flap is connected to the outer wall of the extension tube via a buckle.

[0010] Furthermore, a sealing rubber is provided at the connection between the first limiting ring and the docking ring.

[0011] Furthermore, a waterproof rubber is provided at the connection between the cover and the junction box, and a rotary sealing ring is provided at the connection between the tapered interface and the sleeve.

[0012] Furthermore, a wire groove is provided on the inner wall of the frame and connected to the junction box.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by placing the junction box on the side of the frame, the obstruction of the light-receiving surface is reduced. Simultaneously, the use of a butt ring and threaded interface for cable connection conceals the cable within the conduit, preventing exposed cables from dragging and wearing down. Waterproof and sealing rubber designs effectively prevent rainwater intrusion, extending service life. The adjustable length extension tube adapts to the wiring needs of photovoltaic panels at different distances, further improving wiring efficiency and safety.

[0015] 2. In this invention, the cable is neatly wound onto the winding roller by rotating the rotating rod, avoiding the problem of tangling and knotting caused by haphazard placement of the cable, while also keeping the device tidy. This design not only solves the cable management problem but also ensures that the cable is not easily damaged during storage, further improving the practicality and reliability of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of the wiring structure of a bifacial photovoltaic module proposed in this utility model;

[0017] Figure 2 This is a sleeve structure diagram of the wiring structure of a bifacial photovoltaic module proposed in this utility model;

[0018] Figure 3 A threaded assembly structure diagram of a wiring structure for a bifacial photovoltaic module proposed in this utility model;

[0019] Figure 4This is a diagram of the extension tube structure of the wiring structure of a bifacial photovoltaic module proposed in this utility model;

[0020] Figure 5 This is an internal view of the extension tube of the wiring structure of a bifacial photovoltaic module proposed in this utility model.

[0021] Legend:

[0022] 1. Double-sided photovoltaic panel; 2. Frame; 3. Junction box; 4. Box cover; 5. Threaded interface; 6. Connecting ring; 7. Sleeve; 8. Tapered interface; 9. Extension tube; 10. Flip cover; 11. Hinge; 12. Buckle; 13. Rotating rod; 14. Fixing block; 15. Connecting rod; 16. Winding roller; 17. First limiting ring; 18. Second limiting ring. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a wiring structure for a bifacial photovoltaic module, including a bifacial photovoltaic panel 1, a frame 2 fixedly connected to the outer wall of the bifacial photovoltaic panel 1, a junction box 3 fixedly connected to the outer wall of the frame 2, a wire groove opened on the inner wall of the frame 2 and connected to the junction box 3, a cover 4 snapped onto the upper end of the junction box 3, a waterproof rubber provided at the connection between the cover 4 and the junction box 3, a threaded interface 5 fixedly connected to the right side of the junction box 3, a mating ring 6 threadedly connected to the outer wall of the threaded interface 5, a first limiting ring 17 rotatably connected to the right end of the mating ring 6, a sealing rubber provided at the connection between the first limiting ring 17 and the mating ring 6, and the first limiting ring 17 fixedly connected to the outer wall of the left end of the sleeve 7.

[0025] Specifically, when using this device, the cables of the bifacial photovoltaic panel 1 are connected to the junction box 3 through the cable trays on the frame 2. The junction box 3 is located on the side of the frame 2 to minimize shading of the light-receiving surface, thereby improving the power generation efficiency of the photovoltaic panel. Subsequently, the connecting cables need to pass through the extension tube 9 and the sleeve 7, and enter from the left end of the junction box 3 to connect with the cables of the bifacial photovoltaic panel 1. The connection method using the mating ring 6 and the threaded interface 5 completely conceals the cables within the conduit, avoiding the potential dragging and wear problems caused by exposed cables. Furthermore, by installing waterproof and sealing rubber at each interface, the wiring structure effectively prevents rainwater intrusion, thereby extending the service life of the device.

[0026] Reference Figure 4 and Figure 5 A second limiting ring 18 is fixedly connected to the outer wall of the right end of the sleeve 7. A tapered interface 8 is slidably connected to the outer wall of the sleeve 7. A rotating sealing ring is provided at the connection between the tapered interface 8 and the sleeve 7. An extension tube 9 is rotatably connected to the inner wall of the right end of the tapered interface 8. The left end of the extension tube 9 is sleeved outside the sleeve 7. A flip cover 10 is rotatably connected to the upper side of the middle end of the extension tube 9 through a hinge 11. The front end of the flip cover 10 is connected to the outer wall of the extension tube 9 through a buckle 12. A fixing block 14 is fixedly connected to the rear side of the middle end of the extension tube 9. A connecting rod 15 is rotatably connected to the inner wall of the fixing block 14. A rotating rod 13 is fixedly connected to one end of the connecting rod 15. Two winding rollers 16 are fixedly connected to the other end of the connecting rod 15. The winding rollers 16 are set inside the extension tube 9.

[0027] Specifically, by moving the extension tube 9 to the right, the total length of the sleeve 7 and the extension tube 9 can be freely adjusted to meet the wiring requirements between two photovoltaic panels at different distances. When the total length of the extension tube 9 and the sleeve 7 is determined, but the cable length exceeds the normal operating range, the flip cover 10 can be opened through the latch 12, and the excess cable can be placed between the two winding rollers 16. Then, by rotating the rotating rod 13, the winding rollers 16 are rotated, and the cable is neatly wound around the winding rollers 16. The rotating rod 13 is equipped with a self-locking gear or friction pad to prevent rotation. After winding is completed, simply close the flip cover 10. This design not only effectively stores long cables and avoids the problem of tangling and knotting caused by random cable placement, but also further improves the neatness and safety of the device.

[0028] Working Principle: When using this device, firstly, utilize the wire groove on the frame 2 to connect the cable of the double-sided photovoltaic panel 1 to the junction box 3 located on the side of the frame 2. Next, thread the connecting cable through the extension tube 9 and the sleeve 7, connecting it from the left end of the junction box 3 to complete the connection with the cable of the double-sided photovoltaic panel 1. Afterward, connect the mating ring 6 and the threaded interface 5 to prevent the cable from being exposed and dragging on the ground, thus preventing wear. At the same time, the waterproof rubber and sealing rubber provided by the device can seal each interface to prevent rainwater from seeping in. In addition, by moving the extension tube 9 to the right, the total length of the sleeve 7 and the extension tube 9 can be increased, thereby meeting the wiring requirements of two photovoltaic panels at different distances. When the total length of the extension tube 9 and the sleeve 7 is determined, but the cable length is still too long, the flip cover 10 can be opened through the buckle 12, the cable can be placed between the two winding rollers 16, and then the rotating rod 13 can be rotated to drive the two winding rollers 16 to rotate together, winding the excessively long cable around the winding rollers 16. Finally, the flip cover 10 can be closed.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring structure for a bifacial photovoltaic module, comprising a bifacial photovoltaic panel (1), characterized in that: The outer wall of the double-sided photovoltaic panel (1) is fixedly connected to a frame (2), and the outer wall of the frame (2) is fixedly connected to a junction box (3). The upper end of the junction box (3) is fitted with a cover (4). The right end of the junction box (3) is connected to a sleeve (7) through a threaded assembly. The outer wall of the right end of the sleeve (7) is fixedly connected to a second limiting ring (18). The outer wall of the sleeve (7) is slidably connected to a tapered interface (8). The inner wall of the right end of the tapered interface (8) is rotatably connected to an extension tube (9). The middle end of the extension tube (9) is connected to two winding rollers (16) through a rotating assembly.

2. The wiring structure of a bifacial photovoltaic module according to claim 1, characterized in that: The threaded assembly includes a threaded interface (5) fixedly connected to the right side of the junction box (3). A mating ring (6) is threadedly connected to the outer wall of the threaded interface (5). A first limiting ring (17) is rotatably connected to the right end of the mating ring (6). The first limiting ring (17) is fixedly connected to the outer wall of the left end of the sleeve (7).

3. The wiring structure of a bifacial photovoltaic module according to claim 1, characterized in that: The rotating assembly includes a fixed block (14) fixedly connected to the rear side of the middle end of the extension tube (9), a connecting rod (15) rotatably connected to the inner wall of the fixed block (14), a rotating rod (13) fixedly connected to one end of the connecting rod (15), and a winding roller (16) fixedly connected to the other end of the connecting rod (15).

4. The wiring structure of a bifacial photovoltaic module according to claim 1, characterized in that: The left end of the extension tube (9) is sleeved outside the sleeve (7), and the winding roller (16) is disposed inside the extension tube (9).

5. The wiring structure of a bifacial photovoltaic module according to claim 1, characterized in that: The upper side of the middle end of the extension tube (9) is rotatably connected to a flip cover (10) via a hinge (11), and the front end of the flip cover (10) is connected to the outer wall of the extension tube (9) via a buckle (12).

6. The wiring structure of a bifacial photovoltaic module according to claim 2, characterized in that: A sealing rubber is provided at the connection between the first limiting ring (17) and the docking ring (6).

7. The wiring structure of a bifacial photovoltaic module according to claim 1, characterized in that: Waterproof rubber is provided at the connection between the cover (4) and the junction box (3), and a rotary sealing ring is provided at the connection between the tapered interface (8) and the sleeve (7).

8. The wiring structure of a bifacial photovoltaic module according to claim 1, characterized in that: The inner wall of the frame (2) is provided with a wire groove, which is connected to the junction box (3).

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