Air-cooled energy storage cabinet with high efficiency air duct

Abstract

Aiming at the technical bottlenecks of uneven heat dissipation caused by close battery arrangement and difficult installation and maintenance of air conditioners in the current air-cooled energy storage cabinet, this paper innovatively proposes a high-efficiency air duct marine air-cooled energy storage cabinet solution. This solution adopts multiple innovative designs, realizes uniform heat dissipation through a unique three-dimensional air duct system combined with a flow guide device, and adopts a front-hung air conditioner box structure to significantly improve the space utilization rate while ensuring the refrigeration effect, providing a safer and more efficient solution for marine energy storage systems.

Description

Technical Field

[0001] This article belongs to the field of thermal management and air duct design in marine engineering, specifically involving a high-efficiency air duct marine air-cooled energy storage cabinet. Background Technology

[0002] The core of an energy storage system lies in the battery, and lithium batteries, as the current mainstream technology, directly affect the reliability and energy efficiency of a ship's power system. However, lithium batteries are extremely sensitive to temperature rise and temperature difference. If these two indicators are not properly controlled, they will significantly shorten the battery life and cause safety hazards. This problem is particularly prominent in the marine environment. The enclosed space, frequent vibration, and poor heat dissipation conditions all exacerbate the risk of battery thermal runaway. At the same time, the high humidity and high salinity of the ocean environment can easily corrode electrical components, further threatening the stability of the battery. Therefore, an efficient temperature control system has become the key to ensuring the safe operation of marine lithium batteries.

[0003] While existing air-cooled energy storage cabinets have solved the temperature rise problem through air conditioning, they still have two shortcomings. First, the energy storage cabinet cells are arranged in a dense pattern of two rows on the left and right and eight layers stacked on the top and bottom. This requires both uniform air intake and dynamic balance between hot and cold air. However, the existing air duct design cannot meet both requirements, which can easily create heat dissipation dead zones. Second, although the common top-mounted horizontal air conditioner solution is simple in structure, has a short heat dissipation path, and facilitates the downward flow of cold air, it also has obvious drawbacks. Installing the air conditioner on the top of the cabinet not only requires the disassembly of heavy components during maintenance, but also the air conditioner itself is heavy. Long-term operation may cause the cabinet to deform and compromise its sealing. In addition, in the turbulent environment of a ship, the top-mounted air conditioner is also prone to loosening, which can exacerbate structural fatigue problems. Utility Model Content

[0004] Addressing the technical bottlenecks of current air-cooled energy storage cabinets, such as uneven heat dissipation due to dense battery arrangement and difficulties in air conditioning installation and maintenance, this paper innovatively proposes a high-efficiency air duct solution for marine air-cooled energy storage cabinets. This solution employs several innovative designs, achieving uniform heat dissipation through a unique three-dimensional air duct system combined with a flow guiding device. The front-mounted air conditioning unit structure ensures cooling performance while significantly improving space utilization, providing a safer and more efficient solution for marine energy storage systems.

[0005] A high-efficiency air-cooled energy storage cabinet for marine applications features an innovative airflow design that significantly improves heat dissipation efficiency, making it particularly suitable for space-constrained environments on ships. The cabinet comprises an air conditioning unit, a battery box, an control box, and a base support. The air conditioning unit has a rectangular frame structure and an internal cooling system that rapidly regulates the internal temperature, effectively reducing energy consumption. Its rear panel features a hot air inlet and a cold air outlet. The hot air inlet is located at the center of the rear panel for even hot air intake, while the cold air outlet is located at the top center of the rear panel, creating a highly efficient top-down airflow circulation that significantly enhances heat dissipation. The battery box employs a cabinet-type frame structure with internal sheet metal and vertical airflow ducts, working in conjunction with multiple packaging boxes to achieve three-dimensional heat dissipation. The battery box features two air ducts on the front. The air duct at the top center ensures that cool air enters and forms a heat exchange cycle with the central air duct. This dual-air duct design significantly improves heat dissipation efficiency. The sheet metal air duct is located at the top of the battery box, optimizing airflow distribution. Vertical air ducts are arranged around the perimeter for all-around heat dissipation. The packaging box is stacked in two rows and contains lithium batteries. An axial fan is located on the front. The control box adopts a cabinet-type frame structure and has an internal control panel for crew members to monitor the system status in real time, improving operational convenience. The base bracket adopts a reinforced four-sided support structure with two parallel high-strength support beams inside. The air conditioning unit is suspended on the front of the battery box, the control box is located on the right side, and the bottom is fixed by the base bracket.

[0006] The front of the air conditioning unit features a perforated structure, which effectively enhances air circulation efficiency and significantly improves overall heat dissipation performance.

[0007] The control box adopts a door-type structure design with a handle on the opening side for easy and quick opening and maintenance. A display screen is located at the top of the front, which can monitor the operating data in real time, greatly improving the ease of operation and the visibility of the system.

[0008] The battery box features a double-sealed door structure on the front, with a locking device on the opening edge. Multiple high-strength hinges are installed at the door hinges to ensure excellent waterproof and dustproof performance in harsh marine environments, while providing reliable safety.

[0009] The sheet metal air duct is equipped with a guide plate to control the airflow direction and improve heat dissipation efficiency. The inner wall of the vertical air duct is made of heat insulation material to effectively block heat transfer and reduce energy consumption.

[0010] The battery box has ventilation gaps between the internal packaging boxes and is equipped with fireproof partitions, which not only ensures sufficient heat exchange space but also provides multiple safety guarantees. The axial flow fan equipped in the packaging box adopts a waterproof and dustproof design to ensure stable operation in the humid and dusty marine environment.

[0011] The air conditioning hot air inlet on the back of the air conditioning unit is aligned with the air duct in the center of the front of the battery box, and the air conditioning cold air outlet is aligned with the top air duct, forming a highly efficient closed-loop air-cooling system.

[0012] The base support surface is treated with an anti-corrosion coating to resist the erosion of the high-salt and high-humidity marine environment. The internal support beams are made of high-strength metal and have a waterproof design to ensure that the structure remains stable under harsh working conditions.

[0013] Beneficial effects:

[0014] This paper proposes a high-efficiency air-cooled marine energy storage cabinet with a modular front-mounted design, which is particularly suitable for the confined space of ships. The innovative dual-air duct system, combined with airflow guidance technology, achieves a constant temperature difference in the battery pack. Equipped with a waterproof and dustproof axial flow fan and a double-layer sealing structure, it ensures reliable operation in the high-humidity and high-salt marine environment. The high-strength anti-corrosion structural design extends its service life. Compared with traditional air-cooling systems, this solution is more energy-efficient and is an ideal choice for the safe and efficient operation of current marine energy storage systems. Attached Figure Description

[0015] Figure 1 This is a front view of a marine air-cooled energy storage cabinet with a high-efficiency air duct.

[0016] Figure 2 This is a cross-sectional view of an air conditioning unit for a marine air-cooled energy storage cabinet with a high-efficiency air duct.

[0017] Figure 3 This is a cross-sectional view of the battery box of a marine air-cooled energy storage cabinet with a high-efficiency air duct.

[0018] Figure 4 This is a diagram of the base support assembly for a high-efficiency air-cooled marine energy storage cabinet.

[0019] Figure 5 This is a schematic diagram of the internal cold air circulation of a marine air-cooled energy storage cabinet with a high-efficiency air duct.

[0020] Figure 6 This is a simulation calculation diagram of the temperature difference for a marine air-cooled energy storage cabinet with a high-efficiency air duct.

[0021] In the diagram: 1. Air conditioning unit, 2. Battery box, 3. Control box, 4. Base bracket, 5. Air conditioning hot air inlet, 6. Air conditioning cold air outlet, 7. Air duct, 8. Sheet metal air duct, 9. Vertical air duct, 10. Packaging box, 11. Axial flow fan, 12. Support beam. Detailed Implementation

[0022] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0023] Air conditioning unit 1, battery box 2, control box 3, base bracket 4, air conditioning hot air inlet 5, air conditioning cold air outlet 6, air duct 7, sheet metal air duct 8, vertical air duct 9, packaging box 10, axial flow fan 11, support beam 12.

[0024] like Figure 1 , 2 As shown in 3, 4, 5, and 6

[0025] A high-efficiency air duct marine air-cooled energy storage cabinet features an innovative air duct design that significantly improves heat dissipation efficiency, making it particularly suitable for space-constrained environments on ships. The air-cooled energy storage cabinet consists of an air conditioning unit 1, a battery box 2, an control box 3, and a base support 4. The air conditioning unit 1 adopts a rectangular frame structure and is equipped with an internal cooling device that can quickly regulate the internal temperature, effectively reducing energy consumption. Its rear side has an air conditioning hot air inlet 5 and an air conditioning cold air outlet 6. The hot air inlet is located at the center of the rear side for easy and even intake of hot air, while the cold air outlet is located at the top center of the rear side, forming a high-efficiency top-down airflow circulation that greatly improves heat dissipation. The battery box 2 adopts a cabinet-type frame structure and is internally equipped with sheet metal air ducts 8 and vertical air ducts 9, which, together with multiple packaging boxes 10, achieve three-dimensional heat dissipation. Two air ducts 7 are designed on the front. The air duct 7 at the top center ensures that cold air enters and forms a heat exchange cycle with the air duct 7 at the center. This dual air duct design greatly improves heat dissipation efficiency. The sheet metal air duct 8 is located on the top of the battery box 2 to optimize airflow distribution. The vertical air duct 9 is arranged around the perimeter to achieve all-round heat dissipation. The packaging box 10 adopts a two-row stacking method and is equipped with lithium batteries inside. An axial flow fan 11 is provided on the front. The control box 3 adopts a cabinet-type frame structure and has an operating table inside, which facilitates the crew to monitor the system status in real time and improves the convenience of operation. The base bracket 4 adopts a reinforced four-sided support structure and is equipped with two parallel high-strength support beams 12 inside. The air conditioning box 1 is suspended on the front of the battery box 2, and the control box 3 is located on the right side. The bottom is fixed by the base bracket 4.

[0026] The air conditioning unit 1 features a perforated front structure, effectively enhancing airflow efficiency and significantly improving overall heat dissipation performance. The control box 3 adopts a door-type design with a handle on the opening side for quick access and maintenance. A display screen at the top of the front allows for real-time monitoring of operating data, greatly improving operational convenience and system visualization. The battery box 2 features a double-sealed door structure on the front, with a locking device on the opening side. Multiple high-strength hinges at the door joints ensure excellent waterproof and dustproof performance even in harsh marine environments, while providing reliable safety. A deflector plate is installed inside the sheet metal air duct 8 to control airflow direction and improve heat dissipation efficiency. The inner wall of the vertical air duct 9 is lined with a heat-insulating material layer, effectively blocking heat transfer and reducing [heat loss / heat reduction]. With low energy consumption, the battery box 2 has a heat dissipation gap between the internal packaging box 10 and a fireproof partition, which not only ensures sufficient heat exchange space but also provides multiple safety guarantees. The axial flow fan 11 equipped in the packaging box 10 adopts a waterproof and dustproof design to ensure stable operation in the humid and dusty marine environment. The air conditioning hot air inlet 5 on the back of the air conditioning box 1 is aligned with the air guide 7 at the center of the front of the battery box 2, and the air conditioning cold air outlet 6 is aligned with the top air guide 7, forming an efficient closed-loop air cooling system. The surface of the base bracket 4 is treated with an anti-corrosion coating to resist the corrosion of the high-salt and high-humidity marine environment. The internal support beam 12 is made of high-strength metal material and has a waterproof design to ensure structural stability under harsh working conditions.

[0027] Implementation Example

[0028] During installation, first install the base bracket 4 at the designated position on the ship's deck, ensuring the support surface is flat and stable. Fix the base bracket 4 using welding to enhance vibration and impact resistance. Place the battery box 2 vertically on the base bracket 4 and tighten it with bolts to ensure structural stability. Check the stacking layout of the internal packaging boxes 10 of the battery box 2 to ensure that the two rows of arrangement meet the design requirements and leave a heat dissipation gap. Weld the air conditioning box 1 to the front of the battery box 2, ensuring that the air conditioning hot air inlet 5 on its back is aligned with the central air guide duct 7 of the battery box 2, and the air conditioning cold air outlet 6 is aligned with the top air guide duct 7 of the battery box 2. Install the control box 3 on the right side of the battery box 2 and fix it with bolts to ensure a tight connection with the battery box 2. Check the hinges, handles, and locking devices of the control box 3 to ensure smooth opening and closing and good sealing. Connect the display screen and monitoring system of the control box 3 to ensure that real-time data can be read normally.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 high-efficiency air duct marine air-cooled energy storage cabinet, wherein the air-cooled energy storage cabinet is installed on the bottom deck of the ship, and the air-cooled energy storage cabinet includes an air conditioning unit, a battery box, an operation box, and a base support, characterized in that, The air conditioning unit has a rectangular frame structure and contains a refrigeration unit. A hot air inlet and a cold air outlet are located on the back of the unit. The hot air inlet is located at the center of the back of the unit, and the cold air outlet is located at the top center of the back of the unit. The battery box has a cabinet-type frame structure and contains sheet metal air ducts, vertical air ducts, and several packaging boxes. Two air guides are located on the front of the battery box, one at the top center and the other at the center of the front. The sheet metal air ducts are located at the top of the battery box, and the vertical air ducts are located around the perimeter. The packaging boxes are stacked in two rows and contain lithium batteries. An axial flow fan is located on the front of each packaging box. The control box has a cabinet-type frame structure and contains a control panel. The base support is a four-sided support structure with two parallel support beams inside. The air conditioning unit is suspended from the front of the battery box, and the control box is located on the right side. A base support is located on the bottom of both the battery box and the control box.

2. The marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The air conditioning unit has a hollow structure on the front.

3. The marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The front of the control box is a door-type structure with a handle on the opening side and a display screen at the top of the front.

4. A marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The front of the battery box has a door-type structure with a double-sealed design. The opening edge is equipped with a latch, and the door hinges are equipped with multiple high-strength hinges.

5. A marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The sheet metal air duct is equipped with a guide plate, and the inner wall of the vertical air duct is equipped with a heat insulation material layer.

6. A marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The battery box has ventilation gaps and fireproof partitions between the internal packaging boxes, and the axial flow fan of the packaging box is designed to be waterproof and dustproof.

7. A marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The air conditioning hot air inlet on the back of the air conditioning unit is aligned with the air duct at the center of the front of the battery box, and the air conditioning cold air outlet on the back of the air conditioning unit is aligned with the air duct at the top center of the front of the battery box.

8. A marine air-cooled energy storage cabinet with a high-efficiency air duct according to claim 1, characterized in that, The base bracket has an anti-corrosion coating on its surface, and the internal support beams are made of high-strength metal.

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