CN219041732U - A ventilation and heat dissipation device for a photovoltaic junction box - Google Patents

Abstract

The utility model belongs to the technical field of photovoltaic heat dissipation, in particular to a ventilation and heat dissipation device for a photovoltaic junction box, aiming at the problem that the existing photovoltaic junction box heat dissipation method simply relies on fans or heat dissipation holes for heat dissipation, and has poor heat dissipation effect and low heat dissipation efficiency. The following scheme is proposed, which includes a photovoltaic panel connected to a power supply component, the power supply component includes a circuit board, an inverter, a battery, etc., and is used to convert light energy into electrical energy storage, and a photovoltaic junction box is installed under the photovoltaic panel , the power supply assembly is located in the photovoltaic junction box, the right side of the photovoltaic junction box is provided with a plurality of air holes, the left side of the photovoltaic junction box is embedded with a rectangular tube, the rectangular tube is provided with a fan mechanism, and the bottom of the rectangular tube is provided with a motor. The output shaft is fixedly mounted with a drive shaft. The utility model can not only cool down by blowing, but also can cool the inside of the rectangular tube by blowing down the temperature, which can improve the cooling effect.

Description

A ventilation and cooling device for a photovoltaic junction box

technical field

The utility model relates to the technical field of photovoltaic heat dissipation, in particular to a ventilation heat dissipation device for a photovoltaic junction box.

Background technique

Photovoltaic junction box is a connection device between the solar cell square array composed of solar cell components and the solar charging control device. Its main function is to connect and protect solar photovoltaic components, connect the power generated by solar cells with external lines, and conduct photovoltaic For the current generated by the components, there are many electrical appliances inside the photovoltaic junction box, and the electrical appliances need to be dissipated.

The existing photovoltaic junction box heat dissipation method simply relies on fans or heat dissipation holes for heat dissipation, which has poor heat dissipation effect and low heat dissipation efficiency.

Utility model content

The purpose of this utility model is to solve the existing photovoltaic junction box heat dissipation method simply relying on fans or heat dissipation holes for heat dissipation, poor heat dissipation effect, and low heat dissipation efficiency, and proposes a ventilation and heat dissipation device for photovoltaic junction boxes.

In order to achieve the above object, the utility model adopts the following technical solutions:

A ventilation and heat dissipation device for a photovoltaic junction box, including a photovoltaic panel connected to a power supply component, the power supply component includes a circuit board, an inverter, a battery, etc., and is used to convert light energy into electrical energy storage. The bottom of the photovoltaic panel is set There is a photovoltaic junction box, and the power supply components are located in the photovoltaic junction box. There are multiple air holes on the right side of the photovoltaic junction box. A rectangular tube is embedded in the left side of the photovoltaic junction box. A fan mechanism is installed in the rectangular tube. The bottom of the rectangular tube is provided with a The motor, the output shaft of the motor is fixedly installed with the drive shaft, the top of the rectangular tube is provided with a water flow transmission mechanism, the water flow transmission mechanism is connected with the drive shaft, the top of the photovoltaic junction box is provided with a water tank, and the outside of the water tank is embedded with a semiconductor refrigerator. The same cooling pipe is connected between the water tank and the water flow transmission mechanism, and the cooling pipe is bent and wound around the port of the rectangular pipe.

Preferably, the fan mechanism includes a support rod, the support rod is installed on the inner wall of the rectangular tube, the fan shaft is rotated on the support rod, the fan blade is installed on the outside of the fan shaft, and the second bevel gear is installed on the end of the fan shaft , the outer side of the drive shaft is sheathed with a first bevel gear, and the first bevel gear meshes with the second bevel gear.

Preferably, the water flow transmission mechanism includes a cylinder, the cylinder is installed on the top of the rectangular pipe, a water flow shaft is installed in rotation in the cylinder, and water flow vanes are arranged on the outside of the water flow shaft, and the water flow vanes are located in the cylinder, and the cylinder and the water tank The bottom of the drive shaft is communicated with the same pipeline, a second gear is installed on the outside of the water flow shaft, and a first gear is installed on the top of the drive shaft, and the first gear meshes with the second gear.

Preferably, one end of the cooling pipe communicates with the top of the water tank, and the other end of the cooling pipe communicates with the bottom side of the cylinder.

Preferably, a dust-proof net is provided on the left side of the photovoltaic junction box, and a box cover is rotatably installed on the front of the photovoltaic junction box.

In the utility model, the beneficial effect of the ventilation and heat dissipation device of the photovoltaic junction box:

This scheme starts the motor to drive the drive shaft to rotate, the drive shaft drives the first bevel gear and the second bevel gear to drive the fan shaft to rotate, and the fan shaft drives the fan blades to rotate, which can suck the outside air into the rectangular tube, and then guide the airflow into the photovoltaic junction box For blowing and cooling, the semiconductor refrigerator can cool the coolant, and at the same time, the drive shaft drives the water flow shaft to rotate through the first gear and the second gear, and the water flow shaft drives the water flow blade to rotate. The liquid is sent into the cooling pipe, so that the cooling liquid can circulate in the cooling pipe, improve the cooling effect, and can cool down the blowing, and improve the cooling effect;

The utility model can not only cool down by blowing, but also can cool the inside of the rectangular tube by blowing down the temperature, which can improve the cooling effect.

Description of drawings

Fig. 1 is a structural schematic diagram of a ventilation and heat dissipation device of a photovoltaic junction box proposed by the utility model;

Fig. 2 is the three-dimensional structural schematic diagram of the photovoltaic junction box proposed by the utility model;

Fig. 3 is a structural schematic diagram of part A of a ventilation and heat dissipation device of a photovoltaic junction box proposed by the utility model;

Fig. 4 is a schematic structural diagram of the cooling pipe proposed by the present invention.

In the figure: 1. Photovoltaic panel; 2. Power component; 3. Photovoltaic junction box; 4. Air hole; 5. Water tank; 6. Semiconductor refrigerator; 7. Cooling pipe; 8. Motor; 9. Drive shaft; 10. Fan Shaft; 11, fan blade; 12, support rod; 13, first bevel gear; 14, second bevel gear; 15, rectangular tube; 16, dust-proof net; 17, cylinder; 18, water flow axis; 19, water flow 20, the first gear; 21, the second gear; 22, the pipeline; 23, the installation groove; 24, the first magnet; 25, the second magnet; 26, the box cover.

Detailed ways

The following will clearly and completely describe the technical solutions in this embodiment with reference to the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, not all of the embodiments.

Embodiment one

Referring to Figures 1-4, a ventilation and heat dissipation device for a photovoltaic junction box includes a photovoltaic panel 1 connected to a power supply assembly 2, the power supply assembly 2 includes a circuit board, an inverter, a battery, etc., and is used to transfer light energy Converted into electrical energy storage, a photovoltaic junction box 3 is installed under the photovoltaic panel 1, the power supply assembly 2 is located in the photovoltaic junction box 3, a plurality of air holes 4 are opened on the right side of the photovoltaic junction box 3, and the left side of the photovoltaic junction box 3 is embedded There is a rectangular tube 15, a fan mechanism is arranged inside the rectangular tube 15, a motor 8 is arranged at the bottom of the rectangular tube 15, a drive shaft 9 is fixedly installed on the output shaft of the motor 8, a water flow transmission mechanism is arranged on the top of the rectangular pipe 15, and the water flow transmission mechanism It is connected with the drive shaft 9, and the top of the photovoltaic junction box 3 is provided with a water tank 5, and the outside of the water tank 5 is embedded with a semiconductor refrigerator 6, and the same cooling pipe 7 is connected between the water tank 5 and the water flow transmission mechanism, and the cooling pipe 7 is bent Wrap around the port of the rectangular tube 15.

In this embodiment, the fan mechanism includes a support rod 12, the support rod 12 is installed on the inner wall of the rectangular tube 15, the fan shaft 10 is rotated on the support rod 12, the fan blade 11 is installed on the outside of the fan shaft 10, the fan shaft 10 The end is equipped with a second bevel gear 14, and the outer side of the driving shaft 9 is provided with a first bevel gear 13, and the first bevel gear 13 is meshed with the second bevel gear 14; the driving shaft 9 drives the first bevel gear 13 and the second bevel gear. The bevel gear 14 drives the fan shaft 10 to rotate, and the fan shaft 10 drives the fan blades 11 to rotate, so that the outside air can be sucked into the rectangular tube 15 .

In this embodiment, the water flow transmission mechanism includes a cylinder 17, which is installed on the top of the rectangular tube 15, and a water flow shaft 18 is installed in rotation in the cylinder 17, and a water flow vane 19 is arranged on the outside of the water flow shaft 18, and the water flow vane 19 is located on the top of the rectangular tube 15. Inside the cylinder 17, the bottom of the cylinder 17 and the water tank 5 is connected with the same pipeline 22, the outside of the water flow shaft 18 is equipped with a second gear 21, and the top of the drive shaft 9 is equipped with a first gear 20, the first gear 20 is connected to the second gear. The two gears 21 are meshed; the drive shaft 9 drives the water flow shaft 18 to rotate through the first gear 20 and the second gear 21, and the water flow shaft 18 drives the water flow blade 19 to rotate, and the cooling liquid can be introduced into the cylinder 17 through the pipe 22, and then the cooling The liquid is sent into the cooling pipe 7, so that the cooling liquid can circulate in the cooling pipe 7, and the cooling effect is improved.

In this embodiment, one end of the cooling pipe 7 communicates with the top of the water tank 5 , and the other end of the cooling pipe 7 communicates with the bottom side of the cylinder 17 .

In this embodiment, a dustproof net 16 is provided on the left side of the photovoltaic junction box 3 , and a box cover 26 is rotatably installed on the front of the photovoltaic junction box 3 .

Working principle, when in use, add coolant into the water tank 5, start the motor 8 to drive the drive shaft 9 to rotate, the drive shaft 9 drives the first bevel gear 13 and the second bevel gear 14 to drive the fan shaft 10 to rotate, and the fan shaft 10 drives the fan blades 11 rotation, the outside air can be sucked into the rectangular tube 15, and then the airflow is guided into the photovoltaic junction box 3 for blowing and cooling. The semiconductor refrigerator 6 can cool the coolant, and the drive shaft 9 passes through the first gear 20 and the second gear 21 drives the water flow shaft 18 to rotate, and the water flow shaft 18 drives the water flow vane 19 to rotate. Through the pipe 22, the cooling liquid can be introduced into the cylinder 17, and then the cooling liquid is sent into the cooling pipe 7, so that the cooling liquid can circulate in the cooling pipe 7 , improve the cooling effect, can cool down the blower, and improve the cooling effect.

Embodiment two

The difference between the second embodiment and the first embodiment is that: the left side of the photovoltaic junction box 3 is provided with a plurality of installation grooves 23, the inner side of the dust filter 16 is installed with a plurality of first magnets 24, and the inner wall of the installation groove 23 is embedded with There is a second magnet 25, and the first magnet 24 and the second magnet 25 are attracted, which can increase the stability of the dust-proof net 16, and the dust-proof net 16 can be easily disassembled and cleaned. All structures in this application can be adjusted according to actual usage conditions The selection of material and length, the drawings are all schematic structural diagrams, and the specific actual size can be adjusted appropriately.

The above is only a preferred specific implementation mode of this embodiment, but the scope of protection of this embodiment is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in this embodiment Any equivalent replacement or change of the technical solution and the concept of the utility model of the example shall fall within the scope of protection of the present embodiment.

Claims (7)

1. The utility model provides a ventilation and heat dissipation device of photovoltaic terminal box, including photovoltaic board (1), be connected with power pack (2) on photovoltaic board (1), power pack (2) are including circuit board, dc-to-ac converter, battery, its characterized in that, the below of photovoltaic board (1) is provided with photovoltaic terminal box (3), power pack (2) are located photovoltaic terminal box (3), a plurality of gas pockets (4) have been seted up on the right side of photovoltaic terminal box (3), rectangular pipe (15) have been inlayed in the left side of photovoltaic terminal box (3), be provided with fan mechanism in rectangular pipe (15), the bottom of rectangular pipe (15) is provided with motor (8), the output shaft fixed mounting of motor (8) has drive shaft (9), the top of rectangular pipe (15) is provided with rivers drive mechanism, rivers drive mechanism is connected with drive shaft (9) transmission, the top of photovoltaic terminal box (3) is provided with water tank (5), the outside of water tank (5) is inlayed and is had semiconductor cooler (6), the intercommunication has same cooling tube (7) between water tank (5) and the rivers drive mechanism), winding is at rectangular pipe (15).

2. The ventilation and heat dissipation device of a photovoltaic junction box according to claim 1, wherein the fan mechanism comprises a supporting rod (12), the supporting rod (12) is installed on the inner wall of the rectangular tube (15), a fan shaft (10) is rotatably installed on the supporting rod (12), and fan blades (11) are installed on the outer side of the fan shaft (10).

3. The ventilation and heat dissipation device of a photovoltaic junction box according to claim 2, characterized in that the end of the fan shaft (10) is provided with a second bevel gear (14), the outside of the driving shaft (9) is sleeved with a first bevel gear (13), and the first bevel gear (13) is meshed with the second bevel gear (14).

4. The ventilation and heat dissipation device of a photovoltaic junction box according to claim 1, characterized in that the water flow transmission mechanism comprises a cylinder (17), the cylinder (17) is installed at the top of the rectangular pipe (15), a water flow shaft (18) is rotatably installed in the cylinder (17), water flow blades (19) are arranged on the outer side of the water flow shaft (18), the water flow blades (19) are located in the cylinder (17), and the cylinder (17) is communicated with the bottom of the water tank (5) through a same pipeline (22).

5. The ventilation and heat dissipation device for a photovoltaic junction box according to claim 4, wherein a second gear (21) is installed on the outer side of the water flow shaft (18), a first gear (20) is installed on the top end of the driving shaft (9), and the first gear (20) is meshed with the second gear (21).

6. A ventilation and heat dissipation device for a photovoltaic junction box according to claim 1, characterized in that one end of the cooling tube (7) is connected to the top of the water tank (5), and the other end of the cooling tube (7) is connected to the bottom side of the cylinder (17).

7. The ventilation and heat dissipation device of a photovoltaic junction box according to claim 1, wherein a dust screen (16) is arranged on the left side of the photovoltaic junction box (3), and a box cover (26) is rotatably arranged on the front side of the photovoltaic junction box (3).

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