Novel energy storage air cooling air duct structure

By optimizing the air-cooled duct structure and guide components, the problem of incomplete airflow coverage was solved, achieving uniform heat dissipation and extended lifespan of the PACK module.

CN224400442UActive Publication Date: 2026-06-23ROYPOW TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ROYPOW TECH CO LTD
Filing Date
2025-07-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing air-cooled energy storage boxes, airflow is difficult to cover a large area on the top and bottom sides of the PACK battery module, resulting in a large temperature difference and affecting its lifespan.

Method used

A novel energy storage air-cooled duct structure is designed, employing inlet and outlet air guide components, combined with an air-cooled aluminum box and aluminum fins, to optimize the airflow path and improve heat dissipation. Dustproof cotton and insect-proof netting are used to enhance applicability.

Benefits of technology

It improves airflow convection, reduces internal temperature differences within the PACK module, enhances heat dissipation, is suitable for outdoor environments, and extends battery life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air cooling energy storage box, especially a novel energy storage air cooling air duct structure, including the cabinet, the inside of cabinet is set up and placed chamber, the inside of placed chamber is arranged with multiple groups of placing groove lengthwise, the both sides of cabinet are all set up with the through groove that communicates with placed chamber, and the through groove in both sides places respectively and has the air inlet guide component and the exhaust guide component, this novel energy storage air cooling air duct structure has solved the defect that the airflow is difficult to cover the larger side of the PACK battery module surface area in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of air-cooled energy storage box technology, and in particular to a novel air-cooled duct structure for energy storage. Background Technology

[0002] In existing air-cooled energy storage boxes, the air inlet and outlet are mostly located on the top and bottom sides, while the PACK battery modules inside the energy storage box are arranged horizontally. This means that most of the airflow can only flow over the side surface of the PACK battery module, and it is difficult to cover the larger surface area on the top and bottom sides of the PACK battery module. This results in unsatisfactory air cooling effect, which in turn leads to a large temperature difference between the middle and the two ends of the PACK battery module, which can even exceed 10°C, affecting its lifespan. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where airflow is difficult to cover the side of the PACK battery module with a larger surface area, and to propose a novel energy storage air-cooling duct structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel energy storage air-cooled duct structure is designed, including a cabinet with a placement chamber inside. Multiple placement slots are arranged longitudinally inside the placement chamber. Through slots communicating with the placement chamber are opened on both sides of the cabinet. An air inlet guide component and an air outlet guide component are placed in the through slots on both sides, respectively.

[0006] The air inlet guide assembly includes an air inlet mesh, an air inlet louver, a dustproof cotton, and an insect-proof net arranged in sequence. The side where the air inlet mesh is located faces outward, and the air inlet louver guides the airflow at an angle upward.

[0007] The exhaust ventilation guide assembly includes an exhaust fan, an exhaust louver, and an exhaust mesh arranged in sequence. The side containing the exhaust mesh faces outward, and the exhaust louver guides airflow at an angle downward.

[0008] Preferably, it also includes a heat dissipation auxiliary box assembly, which includes an air-cooled aluminum box placed inside the placement slot. The air-cooled aluminum box has openings at the top and bottom. A lid is fastened to the upper opening of the air-cooled aluminum box, and aluminum fins are sealed and welded to the lower opening of the air-cooled aluminum box.

[0009] Preferably, a waterproof strip is abutting between the lid and the opening of the air-cooled aluminum box, and the waterproof strip is used to seal the seal.

[0010] Preferably, aluminum square tubes are welded to both ends of the aluminum fins, and the aluminum square tubes are used to bear the load.

[0011] Preferably, the fin arrangement direction of the aluminum fins is consistent with the airflow direction, so that air can easily flow through multiple sets of fins to improve the heat dissipation effect.

[0012] Preferably, the air-cooled aluminum box is also equipped with a thermal aerosol fire extinguishing device, which is used for emergency fire extinguishing and cooling.

[0013] Preferably, the outer wall of the air-cooled aluminum box is also equipped with a balancing valve, which is used to balance the pressure difference between the inside and outside of the air-cooled aluminum box.

[0014] Preferably, the dustproof cotton and the insectproof net are fitted together.

[0015] The novel energy storage air-cooled duct structure proposed in this utility model has the following advantages:

[0016] The cabinet has through channels on both sides, with air inlet louvers and exhaust louvers installed inside the two channels respectively. The air inlet louvers can guide airflow diagonally upwards, and the exhaust louvers can guide airflow diagonally downwards, which improves the air convection effect. It is also a left-right convection, which allows the airflow to flow through the upper and lower sides of the PACK module, further improving the heat dissipation effect and reducing the temperature difference inside the PACK module.

[0017] The dustproof cotton and insect-proof netting make this air-cooled structure suitable for outdoor environments with a lot of particulate matter, reducing the amount of external particulate matter entering the placement chamber. Attached Figure Description

[0018] Figure 1 A schematic diagram of the three-dimensional structure of the main body after explosive dismantling;

[0019] Figure 2 A front view diagram of the main body's explosive dismantling structure;

[0020] Figure 3 This is a schematic diagram of the exploded disassembly of the heat dissipation auxiliary box assembly;

[0021] Figure 4 This is a three-dimensional structural diagram of an air-cooled aluminum box;

[0022] Figure 5 for Figure 4 A magnified structural diagram of area A;

[0023] Figure 6 This is a schematic diagram of the structure of an aluminum square tube and aluminum fin assembly.

[0024] In the diagram: 1. Cabinet; 2. Storage chamber; 3. Storage slot; 4. Through slot; 5. Air inlet mesh; 6. Air inlet louvers; 7. Dustproof cotton; 8. Insect screen; 9. Exhaust fan; 10. Exhaust louvers; 11. Exhaust mesh; 12. Air-cooled aluminum box; 13. Waterproof strip; 14. Box lid; 15. Aluminum square tube; 16. Aluminum fins; 17. Balancing valve; 18. Thermal aerosol fire extinguishing device. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Reference Figure 1 , Figure 2 , Figure 3 A novel energy storage air-cooled duct structure includes a cabinet 1, an internal placement chamber 2, a plurality of placement slots 3 arranged longitudinally inside the placement chamber 2, and through slots 4 communicating with the placement chamber 2 on both sides of the cabinet 1. An air inlet guide component and an air outlet guide component are respectively placed in the through slots 4 on both sides.

[0028] Reference Figure 2 The air intake guide assembly includes an air intake mesh 5, an air intake louver 6, a dustproof cotton 7, and an insect-proof net 8 arranged in sequence. The side where the air intake mesh 5 is located faces outward, and the air intake louver 6 guides the airflow at an angle upward.

[0029] Reference Figure 2 The exhaust ventilation guide assembly includes an exhaust fan 9, an exhaust louver 10, and an exhaust mesh 11 arranged in sequence. The side where the exhaust mesh 11 is located faces outward, and the airflow direction of the exhaust louver 10 is diagonally downward.

[0030] Furthermore, refer to Figure 2 The dustproof cotton 7 and the insect-proof net 8 are fitted together.

[0031] Working principle:

[0032] In this embodiment, the existing PACK module is placed in the placement slot 3, and each placement slot 3 is used to accommodate one PACK module, so that multiple PACK modules can be placed vertically and independently in the placement chamber 2.

[0033] When passively cooling is performed, the air intake path is: air intake mesh 5, air intake louvers 6, dustproof cotton 7, insect screen 8, placement chamber 2, exhaust fan 9, exhaust louvers 10, and exhaust mesh 11. Air intake mesh 5 and exhaust mesh 11 are used for external protection and primary filtration, preventing larger objects such as stones from entering and damaging air intake louvers 6 and 10. Air intake louvers 6 guide airflow, allowing it to flow obliquely upwards to draw in cooler air from the bottom of the storage area for better heat dissipation. Dustproof cotton 7 and insect screen 8 are fitted together, with dustproof cotton 7 close to air intake louvers 6, prioritizing dust filtration before insect filtration, making it more suitable for indoor environments. After passing through placement chamber 2 and exhaust fan 9, the airflow is exhausted outwards through exhaust louvers 10, which guides the airflow obliquely downwards, allowing for better natural convection of indoor air and improving heat dissipation efficiency.

[0034] When active cooling is performed, the exhaust fan 9 is turned on. The exhaust fan 9 actively draws air from the placement chamber 2 and discharges it towards the exhaust louver 10. At this time, the air pressure in the placement chamber 2 is lower than the indoor air pressure. Therefore, indoor air will enter from the air inlet louver 6 and pass through the dustproof cotton 7 and the insect-proof net 8 into the placement chamber 2, thereby achieving active cooling.

[0035] For ease of disassembly and maintenance, both the air inlet mesh 5 and the air outlet mesh 11 are fixed inside the placement groove 3 with screws. The air inlet louver 6, dustproof cotton 7, and insect screen 8 are fixed inside the placement groove 3 by abutting through the air inlet mesh 5, and the exhaust fan 9 and exhaust louver 10 are fixed inside the placement groove 3 by abutting through the exhaust mesh 11.

[0036] Example 2

[0037] In Embodiment 1, multiple placement slots 3 allow for independent storage of multiple PACK modules, and the orientation of the air inlet louvers 6 and exhaust louvers 10 improves air convection. Furthermore, the exhaust fan 9 enables active cooling. However, existing PACK module structures are mostly designed for water cooling, making them unsuitable for air-cooled applications. Therefore, referring to… Figure 4 , Figure 5 , Figure 6 It also includes a heat dissipation auxiliary box assembly, which includes an air-cooled aluminum box 12. The air-cooled aluminum box 12 is placed inside the placement slot 3. The air-cooled aluminum box 12 has openings at the top and bottom. A box cover 14 is fastened to the upper opening of the air-cooled aluminum box 12, and aluminum fins 16 are sealed and welded to the lower opening of the air-cooled aluminum box 12.

[0038] Furthermore, refer to Figure 3 A waterproof strip 13 is abutting between the lid 14 and the opening of the air-cooled aluminum box 12, and the waterproof strip 13 is used to seal the box.

[0039] Furthermore, refer to Figure 5 , Figure 6 Aluminum square tubes 15 are welded to both ends of the aluminum fin 16, and the aluminum square tubes 15 are used to bear the load.

[0040] Furthermore, refer to Figure 3 The fin arrangement direction of aluminum fin 16 is consistent with the air flow direction, allowing air to easily flow through multiple sets of fins to improve heat dissipation.

[0041] Furthermore, refer to Figure 3 The air-cooled aluminum box 12 is also equipped with a thermal aerosol fire extinguishing device 18, which is used for emergency fire extinguishing and cooling. The outer wall of the air-cooled aluminum box 12 is also equipped with a balancing valve 17, which is used to balance the pressure difference between the inside and outside of the air-cooled aluminum box 12.

[0042] Working principle:

[0043] The air-cooled aluminum box 12 is used to house the battery pack module in the prior art, and the bottom of the battery pack module is in direct contact with the aluminum fins 16, so that the heat of the battery pack module can be transferred to the aluminum fins 16. In order to improve the heat conduction effect, thermal grease is also applied between the bottom of the battery pack module and the aluminum fins 16. Since the battery pack module does not occupy the entire space inside the air-cooled aluminum box 12, and in order to allow the aluminum fins 16 to be placed in the placement slot 3, aluminum square tubes 15 are installed on the front and rear sides of the aluminum fins 16. The aluminum square tubes 15 are used to provide support and can be placed in the placement slot 3. In order to maintain the heat dissipation effect, the aluminum square tubes 15 do not contact the battery pack module, and the aluminum square tubes 15 cannot block the slots on both sides of the aluminum fins 16.

[0044] During heat dissipation, the temperature inside the air-cooled aluminum box 12 is transferred to the aluminum fins 16. The airflow in the placement chamber 2 passes through the aluminum fins 16 and carries away the heat from the aluminum fins 16, thereby improving the air cooling effect. At the same time, in order to avoid pressure changes caused by temperature changes inside the air-cooled aluminum box 12, the pressure inside the air-cooled aluminum box 12 is adjusted in real time through the set balance valve 17 to avoid the failure of sealing structures such as the waterproof strip 13 due to the inconsistency between the pressure inside the air-cooled aluminum box 12 and the pressure inside the placement chamber 2.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel energy storage air-cooled duct structure, comprising a cabinet (1), wherein the cabinet (1) has an internal placement chamber (2), characterized in that: The interior of the placement chamber (2) has multiple sets of placement slots (3) arranged longitudinally. Both sides of the cabinet (1) are provided with through slots (4) that communicate with the placement chamber (2). Air inlet guide components and air outlet guide components are respectively placed in the through slots (4) on both sides. The air inlet guide assembly includes an air inlet mesh (5), an air inlet louver (6), a dustproof cotton (7), and an insect-proof net (8) arranged in sequence. The side where the air inlet mesh (5) is located faces outward, and the air inlet louver (6) guides the airflow at an angle upward. The exhaust ventilation guide assembly includes an exhaust fan (9), an exhaust louver (10), and an exhaust mesh (11) arranged in sequence. The side of the exhaust mesh (11) faces outward, and the airflow direction of the exhaust louver (10) is diagonally downward.

2. The novel energy storage air-cooled duct structure according to claim 1, characterized in that: It also includes a heat dissipation auxiliary box assembly, which includes an air-cooled aluminum box (12). The air-cooled aluminum box (12) is placed inside the placement slot (3). The air-cooled aluminum box (12) has openings at the top and bottom. A box cover (14) is fastened to the upper opening of the air-cooled aluminum box (12). Aluminum fins (16) are sealed and welded to the lower opening of the air-cooled aluminum box (12).

3. The novel energy storage air-cooled duct structure according to claim 2, characterized in that: A waterproof strip (13) is abutting between the lid (14) and the opening of the air-cooled aluminum box (12), and the waterproof strip (13) is used to seal the box.

4. The novel energy storage air-cooled duct structure according to claim 2, characterized in that: The front and rear ends of the aluminum fin (16) are also welded with aluminum square tubes (15), which are used to bear the load.

5. The novel energy storage air-cooled duct structure according to claim 4, characterized in that: The aluminum fins (16) are arranged in the same direction as the airflow direction, so that air can easily flow through multiple sets of fins to improve the heat dissipation effect.

6. The novel energy storage air-cooled duct structure according to claim 2, characterized in that: The air-cooled aluminum box (12) is also equipped with a thermal aerosol fire extinguishing device (18), which is used for emergency fire extinguishing and cooling.

7. The novel energy storage air-cooled duct structure according to claim 2, characterized in that: The outer wall of the air-cooled aluminum box (12) is also equipped with a balancing valve (17), which is used to balance the pressure difference between the inside and outside of the air-cooled aluminum box (12).

8. The novel energy storage air-cooled duct structure according to claim 1, characterized in that: The dustproof cotton (7) and the insect-proof net (8) are fitted together.