Self-cleaning photovoltaic power station collection box

Abstract

The utility model relates to the field of photovoltaic power station collection box, especially to a self-cleaning photovoltaic power station collection box, a self-cleaning photovoltaic power station collection box, including box, door, abutment frame, cover, screw rod, motor, guide rod, sliding block and U type pole, the both sides of box front part are symmetrically connected with door, two doors are left and right symmetrical, the abutment frame of box top, the top fixed connection of abut part has cover, the middle part rotation is connected with screw rod in the front side of box, the fixed connection of motor is connected with screw rod bottom in the lower part of box front side, the middle part fixed connection of guide rod has in the rear side of box, the sliding block of screw rod upper portion is connected with, the sliding block of guide rod upper portion is also connected with, the both sides between left side and right side of two sliding blocks are fixedly connected with U type pole. The utility model discloses through the cooperation of screw rod, motor, water storage cylinder and sponge strip, the wiping of box and door is carried out, reaches the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power station junction boxes, and in particular to a self-cleaning photovoltaic power station junction box. Background Technology

[0002] A photovoltaic (PV) power station is a power generation system that utilizes solar energy, employs special materials such as crystalline silicon panels, inverters, and other electronic components, and connects to the power grid to transmit electricity. PV power stations are among the green energy development projects most strongly encouraged by the state. The PV power station junction box, also known as a combiner box or junction box, is a crucial device in a PV power station used to collect direct current (DC) from multiple PV module strings and transmit it to the inverter. The PV power station junction box plays a vital role in the solar power generation system, responsible for collecting DC power from multiple PV module strings and transmitting it to the inverter. However, PV power station junction boxes are located outdoors, and contaminants such as dust, sand, and bird droppings easily adhere to the surface of the junction box and its internal electrical connection points. These contaminants not only affect the heat dissipation performance of the junction box, leading to increased internal temperature and accelerated aging of electrical components, but may also cause a decline in insulation performance, resulting in short circuits or leakage risks. Because junction boxes are installed at high locations and widely distributed, regular manual cleaning is both time-consuming and labor-intensive, making it difficult to guarantee timeliness and comprehensiveness. Untimely cleaning may exacerbate the above problems, increase maintenance costs and system downtime, and reduce the overall economic benefits of photovoltaic power plants.

[0003] Therefore, a self-cleaning photovoltaic power station hub box needs to be designed to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the drawbacks of manual cleaning of photovoltaic power station junction boxes, which is both time-consuming and labor-intensive, and whose operation is affected if not cleaned in a timely manner, the technical problem to be solved is to provide a self-cleaning photovoltaic power station junction box.

[0005] The technical solution of this utility model is as follows: A self-cleaning photovoltaic power station junction box includes a box body, a box door, a connecting frame, a cover, a spiral rod, a motor, a guide rod, a slider, a U-shaped rod, a water storage tank, a water diversion column, and a sponge strip. The box body has a box door rotatably connected to both the left and right sides of the front part, and the two box doors are symmetrical. The box body has a connecting frame fixedly connected to the top of the box body, and the cover is fixedly connected to the top of the connecting frame by bolts. The spiral rod is rotatably connected to the middle of the front side of the box body. The motor is fixedly connected to the lower part of the front side of the box body, and the output shaft of the motor is fixedly connected to the bottom of the spiral rod. The guide rod is fixedly connected to the middle of the rear side of the box body. The upper part of the spiral rod is threadedly connected to a slider, and the upper part of the guide rod is also slidably connected to a slider. The left and right sides of the two sliders are fixedly connected to a U-shaped rod. The front and rear sides and the left and right sides of the two U-shaped rods are fixedly connected to a water storage tank. Each water storage tank has multiple water diversion columns fixedly connected near the center end, and sponge strips are fixedly connected between the water diversion columns on the same side.

[0006] As a preferred option, it also includes heightening blocks, with two heightening blocks fixedly connected to the front and rear sides of the bottom of the box.

[0007] Preferably, the system also includes a water collection frame, an inlet pipe, a drain pipe, a water delivery pipe, a top rod, a blocking block, and a spring. The water collection frame is fixedly connected to both the left and right sides of the top of the cover. Multiple inlet pipes are provided on the top of the water storage cylinder. Drain pipes are fixedly connected to both the left and right sides of the front of the tank. The top of the drain pipe on the same side is fixedly connected to the front of the water collection frame. Multiple water delivery pipes are fixedly connected to the center end of the water collection frame. A top rod is fixedly connected to the lower inner side of the water delivery pipe. A blocking block is slidably connected to the middle of the inlet pipe. The top rod and the blocking block abut against each other. A spring is fixedly connected between the upper part of the blocking block and the inlet pipe. The spring is sleeved on the blocking block. The water delivery pipe and the inlet pipe are in sliding contact. The spring is initially in a compressed state.

[0008] Preferably, a connecting pipe is also included, with the water storage tanks on the left and right sides and the water storage tanks on the front and rear sides being fixedly connected by the connecting pipe.

[0009] Preferably, the bottom inner side of the abutment frame is provided with multiple air inlets, and the outer side of the abutment frame is provided with an air dissipation groove, which is in harmony with the air inlets.

[0010] Preferably, an alarm is also included, with the alarm fixedly connected to the upper part of the two sliders away from the center.

[0011] Preferably, the device also includes a placement frame, an air supply pipe, a pump body, and a filter plate. Two placement frames are fixedly connected to the bottom of the inner side of the box, and an air supply pipe is fixedly connected to the bottom of each of the two placement frames. A pump body is fixedly connected to the rear side of each of the two air supply pipes, and a filter plate is slidably connected to the top of each of the two placement frames.

[0012] Preferably, the device also includes a controller, which is fixedly connected to the front of the housing and electrically connected to the motor, alarm, and pump body.

[0013] Preferably, the device also includes surge arresters, with surge arresters fixedly connected to both the front and rear sides of the cover. The surge arresters can clamp abnormal voltages within a safe range and prevent them from impacting the insulation system.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model uses the combination of a spiral rod, a motor, a water storage cylinder, and a sponge strip to wipe the box body and the box door, achieving a cleaning effect.

[0015] 2. This utility model, through the cooperation of a water collection frame, a water inlet pipe, a water storage cylinder, and a water delivery pipe, disperses rainwater while simultaneously wetting the sponge strip, resulting in a better cleaning effect.

[0016] 3. This utility model uses a heightening block to improve the operation of the photovoltaic power station junction box. Furthermore, an alarm emits light to warn staff when the motor is running and a few seconds before and after it starts, preventing staff from opening the box door during motor operation, which could cause collisions between components and physical injury to staff.

[0017] 4. This utility model achieves air exchange inside the box by cooperating with the placement frame, the abutment frame, the air supply pipe and the pump body, thus keeping the inside of the box dry. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the box body, box door, and heightening block of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the box body, box door, and heightening block of this utility model.

[0020] Figure 3 This is a three-dimensional sectional view of the components of this utility model, including the top cover, water collection frame, and drainage pipe.

[0021] Figure 4 This is a three-dimensional structural diagram of the slider, alarm, and U-shaped rod components of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the alarm device, U-shaped rod, and water storage tank of this utility model.

[0023] Figure 6 This is a three-dimensional sectional view of the components of this utility model, including the water collection frame, water storage cylinder, and water delivery pipe.

[0024] Figure 7 for Figure 6 Enlarged diagram of point A in the middle.

[0025] Figure 8 This is a three-dimensional cross-sectional view of the components of this utility model, including the connecting pipe, water-guiding column, and sponge strip.

[0026] Figure 9 This is a three-dimensional cross-sectional view of the components of this utility model, including the placement frame, gas delivery pipe, and pump body.

[0027] Figure 10 This is a three-dimensional cross-sectional view of the abutment frame of this utility model.

[0028] Reference numerals: 1-Box body, 2-Box door, 3-Raising block, 4-Abutment frame, 5-Top cover, 6-Water collection frame, 601-Water inlet pipe, 7-Drain pipe, 701-Controller, 8-Screw rod, 9-Motor, 10-Guide rod, 11-Slider, 12-Alarm, 13-U-shaped rod, 14-Water storage tank, 15-Water supply pipe, 16-Top rod, 17-Blocking block, 18-Spring, 19-Connecting pipe, 20-Water intake column, 21-Sponge strip, 22-Placement frame, 23-Air supply pipe, 24-Pump body, 25-Filter plate, 26-Air inlet, 27-Air dissipation groove, 28-Surge arrester. Detailed Implementation

[0029] Example: A self-cleaning photovoltaic power station hub box, such as Figures 1-10 As shown, the device includes a housing 1, a door 2, a connecting frame 4, a top cover 5, a screw rod 8, a motor 9, a guide rod 10, a slider 11, a U-shaped rod 13, a water storage tank 14, a water intake column 20, and a sponge strip 21. The front left and right sides of the housing 1 are rotatably connected to the doors 2, which are symmetrical. The top of the housing 1 is fixedly connected to the connecting frame 4. Multiple air inlets 26 are opened on the bottom inner side of the connecting frame 4, and air dissipation grooves 27 are opened on the outer side of the connecting frame 4. The air dissipation grooves 27 and the air inlets 26 communicate with each other. The top of the connecting frame 4 is bolted to the top of the connecting frame 4. The front center of the housing 1 is rotatably connected to... The screw rod 8 and the lower front of the housing 1 are equipped with a motor 9. The output shaft of the motor 9 is fixedly connected to the bottom of the screw rod 8. The middle rear of the housing 1 is connected to a guide rod 10 by bolts. The upper part of the screw rod 8 is threadedly connected to a slider 11. The upper part of the guide rod 10 is also slidably connected to a slider 11. U-shaped rods 13 are fixedly connected between the left and right sides of the two sliders 11. Water storage cylinders 14 are fixedly connected to the front and rear sides and the left and right sides of the two U-shaped rods 13. Each water storage cylinder 14 is provided with multiple water inlet columns 20 near the center end. Sponge strips 21 are fixedly connected between the water inlet columns 20 on the same side.

[0030] like Figure 1 , Figure 2 and Figure 9 As shown, it also includes height-increasing blocks 3, with two height-increasing blocks 3 welded to the front and rear sides of the bottom of the box 1.

[0031] like Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, it also includes a water collection frame 6, a water inlet pipe 601, a drain pipe 7, a water delivery pipe 15, a top rod 16, a blocking block 17, and a spring 18. The water collection frame 6 is bolted to both sides of the top of the cover 5. The top of the water storage cylinder 14 is provided with multiple water inlet pipes 601. The drain pipes 7 are fixedly connected to both sides of the front of the box 1. The top of the drain pipe 7 on the same side is fixedly connected to the front of the water collection frame 6. Multiple water delivery pipes 15 are fixedly connected to the center end of the water collection frame 6. The bottom of the inner side of the water delivery pipe 15 is fixedly connected to the top rod 16. The middle of the water inlet pipe 601 is slidably connected to the blocking block 17. The top rod 16 and the blocking block 17 abut against each other. The upper part of the blocking block 17 is fixedly connected to the water inlet pipe 601. The spring 18 is sleeved on the blocking block 17. The water delivery pipe 15 and the water inlet pipe 601 are in sliding contact. The spring 18 is initially in a compressed state.

[0032] like Figure 8 As shown, it also includes a connecting pipe 19, and the water storage tanks 14 on the left and right sides are fixedly connected to the water storage tanks 14 on the front and rear sides.

[0033] like Figure 3 , Figure 4 and Figure 5 As shown, it also includes an alarm 12, with the alarm 12 fixedly connected to the upper part of the two sliders 11 away from the center.

[0034] like Figure 9 As shown, it also includes a placement frame 22, an air supply pipe 23, a pump body 24, and a filter plate 25. Two placement frames 22 are fixedly connected to the bottom of the inner side of the housing 1. An air supply pipe 23 is fixedly connected to the bottom of each of the two placement frames 22. A pump body 24 is installed on the rear side of each of the two air supply pipes 23. A filter plate 25 is slidably connected to the top of each of the two placement frames 22.

[0035] like Figure 4 As shown, it also includes a controller 701. The controller 701 is bolted to the front of the inside of the housing 1. The controller 701 is electrically connected to the motor 9, the alarm 12 and the pump body 24.

[0036] like Figure 1 As shown, it also includes a surge arrester 28. Surge arresters 28 are fixedly connected to both the front and rear sides of the top cover 5. The surge arrester 28 can clamp abnormal voltage within a safe range and prevent it from impacting the insulation system.

[0037] The operator can apply the technology of this device to the photovoltaic power station junction box according to the specific situation. The photovoltaic power station junction box is generally installed at a high outdoor location. The bottom of the box 1 is equipped with a height-increasing block 3 to allow the photovoltaic power station junction box to operate better. Then, open the box door 2, take out the filter plate 25, put the drying bag into the placement frame 22, reset the filter plate 25, and then close the box door 2. The controller 701 starts the pump body 24 at regular intervals. The pump body 24 drives the external gas from the pump body 24 through the gas delivery pipe 23, and then enters the placement frame 22 from the gas delivery pipe 23. After being purified by the drying bag, it enters the box 1. The original gas in the box 1 is compressed and flows into the abutment frame 4 through the air inlet 26, and then is discharged from the gas dissipation groove 27 set on the abutment frame 4, keeping the box 1 dry. After a certain period of time, the pump body 24 stops running.

[0038] When it rains, rainwater flows from the top cover 5 into the water collection frames 6 on both sides. The rainwater then flows through multiple water supply pipes 15 and inlet pipes 601 into the water storage tanks 14 on the left and right sides. From there, it flows through connecting pipes 19 into the front and rear water storage tanks 14, and then from multiple water inlets 20 on the water storage tanks 14 into the four sides of the sponge strips 21, wetting them. If the water collection frame 6 is too high and overflows the drain pipe 7, the water will flow towards the drain pipe 7 and be discharged. The controller 701 periodically starts the motor 9 and the alarm 12. The motor 9 drives the spiral rod 8 to rotate clockwise, causing the slider 11 and U-shaped rod 13 to move downwards, thereby moving the sponge strips 21 downwards to wipe the box body 1 and the door 2, achieving a cleaning effect. Simultaneously, the water supply pipes 15 and inlet pipes 601 detach, and the water collection frame 6... Water flows out from the bottom of the water supply pipe 15. The top rod 16 no longer presses against the blockage block 17. The spring 18 extends and drives the blockage block 17 to move upward, blocking the water inlet pipe 601. Water is stored in the water storage tank 14 for later use. After the slider 11 moves downward a certain distance, the motor 9 drives the spiral rod 8 to rotate counterclockwise, causing the sponge to wipe the box 1 and the box door 2 again. The slider 11 and the U-shaped rod 13 return to their original positions. The top rod 16 presses against the blockage block 17 again. The blockage block 17 moves downward, causing the spring 18 to compress. The water supply pipe 15 is reconnected to the water inlet pipe 601. The motor 9 stops running. When the motor 9 is running and for a few seconds before and after running, the alarm 12 emits a light to warn the staff, preventing the staff from opening the box door 2 during the operation of the motor 9, which could cause collisions between parts and physical injury to the staff.

Claims

1. A self-cleaning photovoltaic power station junction box, comprising a box body (1), a box door (2), a connecting frame (4), and a cover (5), wherein the box body (1) is rotatably connected to the left and right sides of the front part of the box door (2), the box body (1) is fixedly connected to the top of the box body (1), and the cover (5) is fixedly connected to the top of the connecting frame (4), characterized in that: It also includes a screw rod (8), a motor (9), a guide rod (10), a slider (11), a U-shaped rod (13), a water storage cylinder (14), a water intake column (20), and a sponge strip (21). The screw rod (8) is rotatably connected to the middle of the front side of the box (1). The motor (9) is fixedly connected to the lower front side of the box (1). The output shaft of the motor (9) is fixedly connected to the bottom of the screw rod (8). The guide rod (10) is fixedly connected to the middle of the rear side of the box (1). The screw rod (8) The upper part is threaded with a slider (11), and the upper part of the guide rod (10) is also slidably connected with a slider (11). A U-shaped rod (13) is fixedly connected between the left and right sides of the two sliders (11). A water storage cylinder (14) is fixedly connected to the front and rear sides and the left and right sides of the two U-shaped rods (13). Multiple water diversion columns (20) are fixedly connected near the center end of each water storage cylinder (14). A sponge strip (21) is fixedly connected between the water diversion columns (20) on the same side.

2. The self-cleaning photovoltaic power station junction box as described in claim 1, characterized in that: It also includes height-increasing blocks (3), with two height-increasing blocks (3) fixedly connected to the front and rear sides of the bottom of the box (1).

3. The self-cleaning photovoltaic power station hub box as described in claim 2, characterized in that: It also includes a water collection frame (6), an inlet pipe (601), a drain pipe (7), a water delivery pipe (15), a top rod (16), a blocking block (17), and a spring (18). The top of the cover (5) is fixedly connected to the water collection frame (6) on both the left and right sides. The top of the water storage cylinder (14) is fixedly connected to multiple inlet pipes (601). The front of the box (1) is fixedly connected to the drain pipes (7) on both the left and right sides. The top of the drain pipes (7) on the same side is fixedly connected to the front of the water collection frame (6). 6) A number of water supply pipes (15) are fixedly connected near the center end. A top rod (16) is fixedly connected to the lower inner side of the water supply pipe (15). A blocking block (17) is slidably connected to the middle of the water inlet pipe (601). The top rod (16) and the blocking block (17) abut against each other. A spring (18) is fixedly connected between the upper part of the blocking block (17) and the water inlet pipe (601). The spring (18) is sleeved on the blocking block (17). The water supply pipe (15) and the water inlet pipe (601) are in sliding contact.

4. The self-cleaning photovoltaic power station junction box as described in claim 3, characterized in that: It also includes a connecting pipe (19), and the water storage tanks (14) on the left and right sides are fixedly connected to the water storage tanks (14) on the front and rear sides.

5. A self-cleaning photovoltaic power station junction box as described in claim 4, characterized in that, Multiple air inlets (26) are provided on the bottom inner side of the abutment frame (4), and an air dissipation groove (27) is provided on the outer side of the abutment frame (4). The air dissipation groove (27) and the air inlets (26) are mutually circulated.

6. A self-cleaning photovoltaic power station junction box as described in claim 5, characterized in that: It also includes an alarm (12), with the alarm (12) fixedly connected to the upper part of the two sliders (11) away from the center.

7. A self-cleaning photovoltaic power station junction box as described in claim 6, characterized in that: It also includes a placement frame (22), an air supply pipe (23), a pump body (24) and a filter plate (25). Two placement frames (22) are fixedly connected to the bottom of the inner side of the box (1). An air supply pipe (23) is fixedly connected to the bottom of each of the two placement frames (22). A pump body (24) is fixedly connected to the rear side of each of the two air supply pipes (23). A filter plate (25) is slidably connected to the top of each of the two placement frames (22).

8. A self-cleaning photovoltaic power station junction box as described in claim 7, characterized in that: It also includes a controller (701), which is fixedly connected to the front side of the box (1). The controller (701) is electrically connected to the motor (9), the alarm (12) and the pump body (24).

9. A self-cleaning photovoltaic power station junction box as described in claim 8, characterized in that: It also includes a surge arrester (28), and surge arresters (28) are fixedly connected to both the front and rear sides of the top cover (5).

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