A compact energy storage cabinet with optimized airflow

Abstract

This utility model discloses a compact energy storage cabinet with optimized airflow, belonging to the field of energy storage cabinet technology. The compact energy storage cabinet with optimized airflow includes: a cabinet body with an internal cavity, the cavity being divided into at least two placement chambers by a partition, a support plate at the bottom of each placement chamber, and a flow chamber formed below the support plate; a mounting bracket disposed within each placement chamber, the sidewall of which has heat dissipation grooves and holes; a water-cooling system including a water tank located within the flow chamber and a cooling pipe connected to the water tank; and an air-cooling system including an air conditioner located at the top of the cabinet body, the air conditioner being connected to an auxiliary air duct via an air outlet duct extending along the height direction of the mounting bracket; and air outlets on both sides of the bottom of the cabinet body, the air outlets connecting the flow chamber to the external environment. This design allows for a compact arrangement of battery packs with improved heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage cabinet technology, and more specifically, relates to a compact energy storage cabinet with optimized airflow. Background Technology

[0002] During operation, the battery packs in an energy storage cabinet inevitably generate a large amount of heat, making heat dissipation and cooling crucial. Existing energy storage cabinets generally employ air-cooling, utilizing a heat dissipation structure composed of air conditioners, fans, and air ducts. This structure exchanges heat through air convection between the inside and outside of the cabinet to achieve heat dissipation.

[0003] For example, a high-efficiency heat dissipation energy storage cabinet with patent number CN202322101354.2, while improving heat dissipation to some extent, uses a crisscrossing airflow channel design within the cabinet for alternating heat dissipation to prevent thermal interference between adjacent battery packs. However, this method actually results in poorer airflow within the cabinet, and due to the long, crisscrossing paths, the air residence time is significantly increased, causing some excessively high temperatures to linger and stagnate within the paths. Therefore, the airflow heat dissipation method in the aforementioned patent actually leads to reduced heat dissipation efficiency, and the staggered battery packs actually occupy more space than ordinary energy storage cabinets, resulting in poor space utilization. Utility Model Content

[0004] This invention provides a compact energy storage cabinet with optimized airflow, which allows for the compact arrangement of battery packs and better heat dissipation.

[0005] This utility model discloses a compact energy storage cabinet with optimized airflow, comprising: a cabinet body having an internal cavity, the cavity being divided into at least two placement chambers by a partition, a support plate being provided at the bottom of each placement chamber, a flow chamber being formed below the support plate, and multiple air slots connecting the flow chamber and the placement chambers being provided on the support plate; a mounting bracket disposed within each placement chamber, the mounting bracket having mounting slots for fixing battery packs, the sidewalls of the mounting slots having heat dissipation slots and heat dissipation holes to achieve airflow connection between adjacent battery packs; and a water cooling system, including a water cooling system... The flow chamber contains a water tank and a cooling pipe connected to the water tank. The cooling pipe is arranged along the water-cooled wall of the placement chamber for water-cooled heat dissipation of the battery pack. The air-cooled system includes an air conditioner located at the top of the cabinet. The air conditioner is connected to an auxiliary air duct via an air outlet duct. The auxiliary air duct extends along the height of the mounting bracket and has multiple air outlets facing the battery pack. Air outlets are provided on both sides of the bottom of the cabinet. The air outlets connect the flow chamber to the external environment to form a composite heat dissipation path from top air cooling to bottom water cooling.

[0006] As a further improvement of this utility model, the water cooling system also includes a circulation pipeline, which includes an outlet pipe and a return pipe connected to the water tank. The two ends of the cooling pipe are respectively connected to the outlet pipe and the return pipe, and the return pipe forms a closed loop with the water tank through a return water connection pipe.

[0007] As a further improvement of this utility model, the water tank is provided with multiple heat dissipation fins on its outer side, and the heat dissipation fins correspond to the position of the air outlet so as to accelerate the heat dissipation of the water tank through external airflow.

[0008] As a further improvement of this utility model, the auxiliary air duct is longitudinally arranged on the side of the mounting bracket, and the air outlet ports are equidistantly distributed along the length of the auxiliary air duct, with the air outlet direction facing the side end face of the battery pack.

[0009] As a further improvement of this utility model, the placement area of ​​the mounting groove is larger than the contact area of ​​the battery pack, so as to form a heat dissipation gap between the battery pack and the mounting groove.

[0010] As a further improvement of this utility model, the water-cooled wall is disposed in the middle of the placement cavity and divides the placement cavity into symmetrical mounting cavities, and the cooling pipes are respectively arranged on both sides of the water-cooled wall.

[0011] As a further improvement of this utility model, the air outlet of the air conditioner is located at the upper end of the placement cavity, and the air outlet pipe passes through the water-cooled wall and extends to the support plate, so as to evenly deliver cold air to each layer of the mounting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] The flow chamber and placement chamber are separated by a support plate, and air slots are created on the support plate. Combined with the heat dissipation slots and holes on the side wall of the mounting slot, airflow between adjacent battery packs is achieved. At the same time, the directional air supply from the outlet of the auxiliary air duct works in conjunction with the cooling pipes on both sides of the water-cooled wall to form a composite heat dissipation path. This design enables the battery packs to dissipate heat quickly through the efficient combination of air cooling and water cooling even when the packs are compactly arranged. It solves the problems of airflow stagnation and uneven heat dissipation caused by cross-flow ducts in traditional energy storage cabinets, improving space utilization and heat dissipation effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a frontal planar structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention with the side plates and top plate removed.

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] Explanation of the labels in the diagram:

[0019] Cabinet 1, partition 11, placement cavity 111, water-cooled wall 112, support plate 12, flow cavity 121, air duct 122, air outlet 13, mounting bracket 2, mounting groove 21, heat dissipation groove 211, heat dissipation hole 22, water tank 3, heat dissipation fins 31, water outlet pipe 32, cooling pipe 321, return water pipe 33, return water connection pipe 331, air conditioner 4, air outlet 41, air outlet pipe 42, air duct 421, air outlet port 422, battery pack 5. Detailed Implementation

[0020] Specific Implementation Example 1: Please refer to... Figures 1-4 A compact energy storage cabinet with optimized airflow includes a cabinet body 1, mounting brackets 2, a water tank 3, an air conditioner 4, and a battery pack 5. A cavity is formed within the cabinet body 1, and the mounting brackets 2, water tank 3, and battery pack 5 are all installed within the cavity. The air conditioner 4 is installed at the upper end of the cabinet body 1, and its output end penetrates the cavity of the cabinet body 1. Multiple mounting brackets 2 are provided, and the battery packs 5 are correspondingly placed on the mounting brackets 2. The water tank 3 is installed at the bottom end of the cavity of the cabinet body 1.

[0021] Specifically, the cabinet 1 includes a partition 11, a support plate 12, and an air outlet 13. The partition 11 is installed in the middle of the cavity of the cabinet 1 to evenly form two placement chambers 111. The support plate 12 is installed at the lower end of the cavity and passes through the partition 11, being fixedly connected to the inner walls of both sides of the cabinet 1 to form a flow chamber 121 below the support plate 12. Multiple air slots 122 are equidistantly provided on the support plate 12 to allow the flow chamber 121 and the placement chambers 111 to communicate with each other. A water-cooled wall 112 is also provided in the middle of the placement chamber 111 and is installed on the support plate 12 to divide the placement chamber 111 into installation chambers. The air outlets 13 are respectively opened on both sides of the lower end of the cabinet 1 and penetrate through the wall of the cabinet 1 to connect the outside world with the flow chamber 121 and the placement chambers 111.

[0022] Specifically, mounting brackets 2 are installed within the mounting cavity of placement cavity 111. Multiple mounting brackets 2 are provided, equidistantly spaced along the height direction. A downwardly recessed mounting groove 21 is provided in the center of each mounting bracket 2. Multiple evenly spaced heat dissipation grooves 211 are formed on the end face of the mounting groove 21, penetrating the wall of the mounting groove 21 to connect the placement cavity 111 to each other along the height direction. Heat dissipation holes 22 are formed through the wall of the mounting bracket 2 near the water-cooled wall 112 to assist in heat dissipation at the corresponding mounting bracket 2 positions. The placement area of ​​the mounting groove 21 on the mounting bracket 2 is larger than the contact area of ​​the battery pack 5, ensuring sufficient heat dissipation space when the battery pack 5 is placed within the mounting groove 21.

[0023] Specifically, water tank 3 is installed inside flow cavity 121, and water tank 3 is respectively arranged on both sides of partition 11, so that each of the two corresponding placement cavities 111 is equipped with a separate water tank 3. Multiple heat dissipation fins 31 are connected to the outside of water tank 3, and the air outlet 13 is positioned opposite to the multiple heat dissipation fins 31. Among them, water tank 3 includes water outlet pipe 32 and water return pipe 32. Water outlet pipe 32 is connected to multiple sets of cooling pipes 321, and the multiple sets of cooling pipes 321 are respectively arranged on both sides of water-cooled wall 112 to cool the battery packs on both sides of water-cooled wall 112. Water return pipe 32 is connected to water return connecting pipe 331, and water return connecting pipe 331 is connected to cooling pipe 321 to form a circulation pipeline. The cabinet 1 also includes a water cooling system, which consists of a water tank 3, a water pump (not shown in the figure), and multiple sets of cooling pipes 321. The water tank 3 is connected to an outlet pipe 32 and a return pipe 33. The water pump is installed on the outlet pipe 33. The inlet of each set of cooling pipes 321 is connected to the outlet pipe 32, and the outlet of each set of cooling pipes 321 is connected to the return pipe 331. When the water cooling system starts, the water in the water tank 3 circulates through the outlet pipe 32 into each set of cooling pipes 321, directly exchanging heat with the periphery of each battery pack 5, thus cooling each battery pack 5 and removing heat. Finally, the water flows back to the water tank 3 through the return pipe 33.

[0024] Specifically, the air conditioner 4 includes an air outlet 41 and an air outlet duct 42. The air outlet 41 is located at the upper end of the two side placement cavities 111 and is connected to the output end of the air conditioner 4. The air outlet duct 42 is located on both sides of the air outlet 41 and extends through both sides of the water-cooled wall 112 along the height direction of the mounting bracket 2 to the support plate 12. An auxiliary air duct 421 is provided in the mounting cavity corresponding to each battery pack 5. The auxiliary air duct 421 is arranged longitudinally to correspond to the side end face of the battery pack 5. Multiple equidistant air outlet ports 422 are opened at the end of the auxiliary air duct 421 near the battery pack 5 to form a relative air-cooling system. The air outlet ports 422 are always oriented towards the battery pack 5 to dissipate heat from the battery pack 5 through the air conditioner 4. When the air-cooling system is started, the cold air from the air outlet 41 of the air conditioner 4 continuously enters the corresponding installation cavity through the air outlet 422, and enters each corresponding installation cavity from top to bottom to dissipate heat on the sides and all sides of each battery pack 5, taking away the heat, and finally flows out of the cabinet through the air outlet 13 to dissipate heat from multiple battery packs 5.

[0025] Working principle:

[0026] This energy storage cabinet achieves efficient heat dissipation through a composite heat dissipation path. The top-mounted air-cooled system delivers cool air through exhaust ducts to auxiliary ducts. These auxiliary ducts extend along the height of the mounting frame and, through equidistantly distributed exhaust ports, evenly distribute the cool air towards the side faces of the battery pack, creating a top-down airflow. Simultaneously, the bottom-mounted water-cooled system's water tank is located within the flow chamber, with cooling pipes arranged along the water-cooled walls, exchanging heat with the battery pack through a circulation system. Air grooves on the support plate connect the flow chamber and the placement chamber. External airflow enters the flow chamber from the exhaust ports on both sides of the cabinet's bottom, accelerating heat dissipation from the water tank's fins. This ultimately forms a synergistic heat dissipation mechanism of "top air cooling → bottom water cooling → external heat dissipation," ensuring efficient heat dissipation from the compactly arranged battery pack.

Claims

1. A compact energy storage cabinet with optimized airflow, characterized in that, include: The cabinet (1) has a cavity inside, which is divided into at least two placement chambers (111) by a partition (11). The bottom of the placement chamber (111) is provided with a support plate (12), and a flow chamber (121) is formed below the support plate (12). The support plate (12) has multiple air grooves (122) that connect the flow chamber (121) and the placement chamber (111). Mounting bracket (2) is provided in the placement cavity (111). Mounting bracket (2) is provided with mounting groove (21) for fixing battery pack (5). The side wall of mounting groove (21) is provided with heat dissipation groove (211) and heat dissipation hole (22) to realize airflow between adjacent battery packs (5). The water cooling system includes a water tank (3) disposed in the flow cavity (121) and a cooling pipe (321) connected to the water tank (3). The cooling pipe (321) is arranged along the water-cooled wall (112) in the placement cavity (111) for water-cooling heat dissipation of the battery pack (5); and The air-cooled system includes an air conditioner (4) located on the top of the cabinet (1). The air conditioner (4) is connected to an auxiliary air duct (421) via an air outlet duct (42). The auxiliary air duct (421) extends along the height direction of the mounting bracket (2) and has multiple air outlet ports (422) facing the battery pack (5). The cabinet (1) has air outlets (13) on both sides of the bottom. The air outlets (13) connect the flow cavity (121) with the external environment to form a composite heat dissipation path from top air cooling to bottom water cooling.

2. The compact energy storage cabinet with optimized airflow according to claim 1, characterized in that: The water cooling system also includes a circulation pipeline, which includes an outlet pipe (32) and a return pipe (33) connected to the water tank (3). The two ends of the cooling pipe (321) are connected to the outlet pipe (32) and the return pipe (33) respectively. The return pipe (33) forms a closed loop with the water tank (3) through the return water connection pipe (331).

3. The compact energy storage cabinet with optimized airflow according to claim 2, characterized in that: The water tank (3) is provided with multiple heat dissipation fins (31) on the outside. The heat dissipation fins (31) are positioned corresponding to the air outlet (13) so as to accelerate the heat dissipation of the water tank through external airflow.

4. The compact energy storage cabinet with optimized airflow according to claim 1, characterized in that: The auxiliary air duct (421) is longitudinally arranged on the side of the mounting bracket (2), and the air outlet (422) is equidistantly distributed along the length of the auxiliary air duct (421), with the air outlet direction facing the side end face of the battery pack (5).

5. The compact energy storage cabinet with optimized airflow according to claim 1, characterized in that: The placement area of ​​the mounting groove (21) is larger than the contact area of ​​the battery pack (5) to form a heat dissipation gap between the battery pack (5) and the mounting groove (21).

6. The compact energy storage cabinet with optimized airflow according to claim 1, characterized in that: The water-cooled wall (112) is located in the middle of the placement cavity (111) and divides the placement cavity (111) into symmetrical mounting cavities. The cooling pipes (321) are respectively arranged on both sides of the water-cooled wall (112).

7. The compact energy storage cabinet with optimized airflow according to claim 1, characterized in that: The air outlet (41) of the air conditioner (4) is located at the upper end of the placement cavity (111), and the air outlet pipe (42) passes through the water-cooled wall (112) and extends to the support plate (12) to deliver cold air evenly to each layer of the mounting frame (2).

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