Photovoltaic energy storage container cooling device

Abstract

The utility model relates to photovoltaic energy storage technical field especially relates to a photovoltaic energy storage container cooling device. Its technical scheme includes energy storage container main part, the energy storage container main part upper surface fixed mounting has PLC, air cooler and air draught fan, the air cooler output pipe end fixedly connected with branch pipe, a plurality of electric valves are fixedly installed to branch pipe lower surface equidistance, the electric valve end fixedly connected with air cooler pipe, and air cooler pipe end is located in the energy storage container main part inside near the bottom position department, the air draught fan input pipe end is connected with the collecting pipe. The utility model can carry out the multi -point temperature monitoring to photovoltaic energy storage container inside, and according to the temperature of each local area adjusts the cooling air volume of this area, to make photovoltaic energy storage container inside overall cooling uniform, effectively slows down the battery attenuation speed, promotes the charge -discharge efficiency, reduces the overcharge, the overheating and causes the fire, explosion and so on safety risk, prolongs the battery life simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic energy storage technology, specifically a photovoltaic energy storage container cooling device. Background Technology

[0002] Photovoltaic energy storage containers are mobile energy storage devices that use standardized containers as carriers and integrate core components such as lithium-ion battery packs, battery management systems, and energy storage converters. When in operation, they can store the electrical energy generated by photovoltaic power generation and release it during peak electricity demand or when there is a power shortage, thus achieving peak shaving and valley filling. They have advantages such as low construction cost, short construction period, strong modularity, mobility, and strong environmental adaptability, and are widely used in industrial and commercial, grid-side, and remote area power supply scenarios.

[0003] During operation, photovoltaic energy storage containers generate a large amount of heat from their internal battery packs and battery management systems. Therefore, it is necessary to cool the inside of the energy storage container to effectively slow down battery degradation, improve charging and discharging efficiency, reduce safety risks such as fires and explosions caused by overcharging and overheating, and extend battery life. However, current energy storage containers are relatively large, and the amount of heat generated in different areas during the overall cooling process can lead to uneven cooling inside the container, with the possibility of excessively high temperatures in some areas. This prevents the effective release and cooling of local heat. To address this, we propose a photovoltaic energy storage container cooling device. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for a photovoltaic energy storage container. This device can monitor the temperature at multiple points inside the photovoltaic energy storage container and adjust the cooling air volume of each local area according to its temperature. This ensures uniform cooling throughout the container, effectively slowing down battery degradation, improving charging and discharging efficiency, reducing safety risks such as fires and explosions caused by overcharging and overheating, and extending battery life. It also solves the problems of current energy storage containers being too large, and the uneven cooling caused by varying heat generation in different areas, resulting in potentially excessively high temperatures in some areas and preventing effective heat release and cooling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic energy storage container cooling device, comprising an energy storage container body, a PLC, a cooler, and an induced draft fan fixedly installed on the upper surface of the energy storage container body, a branch pipe fixedly connected to the end of the cooler's output pipe, a plurality of electric valves fixedly installed at equal intervals on the lower surface of the branch pipe, a cool air duct fixedly connected to the end of the electric valve, and the end of the cool air duct located inside the energy storage container body near the bottom, a manifold connected to the end of the induced draft fan's input pipe, a plurality of induced draft ducts fixedly installed at equal intervals on the lower surface of the manifold, the end of the induced draft duct located inside the energy storage container body near the top, and a temperature sensor fixedly installed inside the energy storage container body near the end of each induced draft duct.

[0006] Preferably, a roof frame is fixedly installed on the upper surface of the energy storage container body, and the PLC, air cooler and induced draft fan are all located inside the roof frame. The roof frame is n-shaped in front view, which serves to shield and protect the PLC, air cooler and induced draft fan, and also facilitates the stacking of the energy storage container body.

[0007] Preferably, a one-way valve is fixedly connected to the end of the induced draft fan output pipe.

[0008] Preferably, the air cooler, electric valve, induced draft fan, and temperature sensor are all electrically connected to the PLC.

[0009] Preferably, the inner wall of the energy storage container body is provided with a heat insulation coating, which can play a role in heat insulation of the energy storage container body, so as to reduce the impact of external heat conduction on the internal temperature of the energy storage container body.

[0010] Preferably, the outer surface of the energy storage container body is provided with a light-reflecting coating, which can reflect light and reduce the heat absorption of the energy storage container body due to direct sunlight.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a main body of the energy storage container, a cooler, a PLC, branch pipes, electric valves, cool air ducts, an exhaust fan, a manifold, an exhaust pipe, and temperature sensors, achieves multi-point temperature monitoring inside the photovoltaic energy storage container. It adjusts the cooling air volume in each localized area based on the temperature, ensuring uniform cooling throughout the container. This effectively slows down battery degradation, improves charging and discharging efficiency, reduces the safety risks of overcharging and overheating leading to fires and explosions, and extends battery life. After the cooler operates, the cooled air is distributed through the branch pipes into each cool air duct. Air enters the bottom of the energy storage container through the cold air duct. The hot air inside the container rises, and the exhaust fan exhausts the hot air from inside the container to the outside through the manifold and exhaust duct, thus cooling the interior of the container. Temperature sensors monitor the air temperature at each exhaust duct to determine the amount of heat generated in that area of ​​the container and transmit the temperature monitoring signal to the PLC. The PLC controls the opening of the electric valve based on the signal, adjusting the amount of cold air in the corresponding cold air duct to ensure uniform cooling inside the container.

[0013] 2. By setting a thermal insulation coating, this utility model can provide thermal insulation for the main body of the energy storage container, thereby reducing the impact of external heat conduction on the internal temperature of the energy storage container.

[0014] 3. By setting a light-reflecting coating, this utility model can reflect light and reduce the heat absorption of the main body of the energy storage container due to direct sunlight. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the main sectional structure of this utility model;

[0017] Figure 3 This is a partial side view of the branch pipe structure of this utility model;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the diagram.

[0019] Reference numerals in the attached drawings: 1. Main body of energy storage container; 2. Roof frame; 3. Light reflective coating; 4. Thermal insulation coating; 5. PLC; 6. Air cooler; 7. Branch pipe; 8. Electric valve; 9. Air cooler duct; 10. Check valve; 11. Exhaust fan; 12. Manifold; 13. Exhaust duct; 14. Temperature sensor. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-4 As shown, this utility model proposes a photovoltaic energy storage container cooling device, including an energy storage container body 1. The batteries and battery management system used for photovoltaic energy storage are fixedly installed inside the energy storage container body 1. A PLC 5, a cooler 6, and an exhaust fan 11 are fixedly installed on the upper surface of the energy storage container body 1. A branch pipe 7 is fixedly connected to the end of the output pipe of the cooler 6. Several electric valves 8 are fixedly installed at equal intervals on the lower surface of the branch pipe 7. A cold air pipe 9 is fixedly connected to the end of each electric valve 8, and the end of the cold air pipe 9 is located inside the energy storage container body 1 near the bottom. A manifold 12 is connected to the end of the input pipe of the exhaust fan 11. A manifold 12 is fixedly installed at equal intervals on the lower surface of the manifold 12. The container is equipped with several exhaust pipes 13, the ends of which are located inside the main body 1 of the energy storage container near the top. Temperature sensors 14 are fixedly installed inside the main body 1 of the energy storage container near the end of each exhaust pipe 13. Temperature sensors 14, cold air pipes 9 and exhaust pipes 13 correspond one-to-one. The temperature sensors 14 monitor the temperature at multiple points inside the main body 1 of the energy storage container to determine the temperature of local areas inside the main body 1 and to determine the difference in heat generation in each local area. The cold air fan 6, electric valve 8, exhaust fan 11 and temperature sensors 14 are all electrically connected to PLC 5. A one-way valve 10 is fixedly connected to the end of the output pipe of exhaust fan 11.

[0023] In use, after the air cooler 6 operates, the cooled air is diverted through the branch pipe 7 and enters each air cooler duct 9. The cooled air enters the bottom of the energy storage container body 1 through the air cooler duct 9. The hot air inside the energy storage container body 1 rises, and the exhaust fan 11 exhausts the hot air inside the energy storage container body 1 to the outside of the energy storage container body 1 through the manifold 12 and exhaust duct 13, thereby cooling the inside of the energy storage container body 1. The temperature sensor 14 monitors the temperature discharged from each exhaust duct 13 to determine the amount of heat generated in that area inside the energy storage container body 1, and transmits the temperature monitoring signal to the PLC 5. The PLC 5 controls the opening of the electric valve 8 according to the signal to adjust the amount of cooled air in the corresponding air cooler duct 9, so that the inside of the energy storage container body 1 is cooled evenly, effectively slowing down the battery degradation rate, improving charging and discharging efficiency, reducing the safety risks of fire and explosion caused by overcharging and overheating, and extending the battery life.

[0024] Example 2

[0025] like Figure 1 and Figure 2As shown, the photovoltaic energy storage container cooling device proposed in this utility model, compared with the first embodiment, further includes a roof frame 2 fixedly installed on the upper surface of the energy storage container body 1, and the PLC 5, the air cooler 6 and the exhaust fan 11 are all located inside the roof frame 2. The roof frame 2 is n-shaped in front view, which plays a role in shielding and protecting the PLC 5, the air cooler 6 and the exhaust fan 11, and also facilitates the stacking of the energy storage container body 1. The inner wall of the energy storage container body 1 is provided with a heat insulation coating 4, and the outer surface of the energy storage container body 1 is provided with a light reflection coating 3.

[0026] In this embodiment, the thermal insulation coating 4 can provide thermal insulation for the main body 1 of the energy storage container, thereby reducing the impact of external heat conduction on the internal temperature of the main body 1 of the energy storage container. Meanwhile, the light reflection coating 3 can reflect light and reduce the heat absorption of the main body 1 of the energy storage container due to direct sunlight.

[0027] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A photovoltaic energy storage container cooling device, comprising an energy storage container body (1), characterized in that: The energy storage container body (1) is fixedly equipped with a PLC (5), a cooler (6) and an exhaust fan (11) on its upper surface. The cooler (6) has a branch pipe (7) fixedly connected to its output pipe end. Several electric valves (8) are fixedly installed at equal intervals on the lower surface of the branch pipe (7). The cooler (8) has a cooler pipe (9) fixedly connected to its end. The end of the cooler pipe (9) is located inside the energy storage container body (1) near the bottom. The exhaust fan (11) has a manifold (12) connected to its input pipe end. Several exhaust pipes (13) are fixedly installed at equal intervals on the lower surface of the manifold (12). The end of the exhaust pipes (13) is located inside the energy storage container body (1) near the top. A temperature sensor (14) is fixedly installed inside the energy storage container body (1) near the end of each exhaust pipe (13).

2. The photovoltaic energy storage container cooling device according to claim 1, characterized in that: The main body (1) of the energy storage container is fixedly installed with a roof frame (2), and the PLC (5), the air cooler (6) and the induced draft fan (11) are all located inside the roof frame (2).

3. The photovoltaic energy storage container cooling device according to claim 1, characterized in that: A one-way valve (10) is fixedly connected to the end of the output pipe of the induced draft fan (11).

4. The photovoltaic energy storage container cooling device according to claim 1, characterized in that: The air cooler (6), electric valve (8), induced draft fan (11) and temperature sensor (14) are all electrically connected to the PLC (5).

5. A photovoltaic energy storage container cooling device according to claim 1, characterized in that: The inner wall of the main body (1) of the energy storage container is provided with a heat insulation coating (4).

6. The photovoltaic energy storage container cooling device according to claim 5, characterized in that: The outer surface of the main body (1) of the energy storage container is provided with a light-reflective coating (3).

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