Outdoor energy storage cabinet

Abstract

The utility model belongs to the technical field of energy storage, disclose a kind of outdoor energy storage cabinet, outdoor energy storage cabinet includes cabinet, door body, battery cluster, high pressure box, fire-fighting module, energy management system, power conversion system and liquid cooling system, cabinet is provided with the battery compartment and electrical compartment of isolated arrangement, door body can be opened and closed in cabinet, battery cluster is installed in battery compartment, battery cluster includes multiple battery box sequentially arranged along the height direction of cabinet, high pressure box is located in battery compartment, and located below battery cluster, fire-fighting module is located in electrical compartment, and located in the side of high pressure box away from door body, energy management system is electrically connected with battery cluster, and installed in door body, power conversion system and liquid cooling system are installed in electrical compartment, power conversion system is electrically connected with battery cluster, and liquid cooling system is towards battery box and transports liquid cooling medium. The structure of the outdoor energy storage cabinet is compact, the space utilization rate is high, which is conducive to improving the total energy storage capacity, and is convenient to install and overhaul.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an outdoor energy storage cabinet. Background Technology

[0002] Outdoor energy storage battery cabinets are devices used in outdoor environments, typically for storing batteries and other energy-related equipment. They provide reliable power support for outdoor activities, outdoor operations, and outdoor emergency backup power. The battery packs placed inside the cabinet determine the energy storage capacity. However, existing outdoor energy storage battery cabinets have complex structures and low space utilization, making it difficult to increase the total energy storage capacity. They are also inconvenient to install and maintain, causing many inconveniences in practical use. Utility Model Content

[0003] This utility model provides an outdoor energy storage cabinet with a compact structure, high space utilization, which is conducive to increasing the total energy storage capacity and is convenient for installation and maintenance.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An outdoor energy storage cabinet includes: a cabinet body, wherein the cabinet body is provided with an isolated battery compartment and an electrical compartment; a door body, the door body being operable and closable with the cabinet body; a battery cluster, the battery cluster being installed in the battery compartment, the battery cluster comprising a plurality of battery boxes arranged sequentially along the height direction of the cabinet body; a high-voltage box, the high-voltage box being located in the electrical compartment and below the battery cluster; a fire-fighting module, the fire-fighting module being located in the electrical compartment and on the side of the high-voltage box opposite to the door body; an energy management system, the energy management system being electrically connected to the battery cluster and installed in the door body; a power conversion system and a liquid cooling system, the power conversion system and the liquid cooling system being installed in the electrical compartment, the power conversion system being electrically connected to the battery cluster, and the liquid cooling system supplying a cooling medium toward the battery boxes.

[0006] The advantages of this outdoor energy storage cabinet are as follows: It features isolated battery and electrical compartments within the cabinet. The battery compartment houses battery clusters and a high-voltage box, with a fire suppression module located at the rear of the high-voltage box. The battery compartment also houses a power conversion system and a liquid cooling system. An energy management system is installed on the door. When the door is opened, the battery clusters, high-voltage box, power conversion system, liquid cooling system, and energy management system are all exposed to the user's view. The cabinet has a compact structure, facilitating installation and maintenance. It also makes full use of the space on the door and the space behind the high-voltage box within the battery compartment, improving the overall space utilization of the cabinet and thus increasing the total energy storage capacity of the outdoor energy storage cabinet.

[0007] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0008] Figure 1 This is a structural schematic diagram of the outdoor energy storage cabinet according to an embodiment of the present utility model;

[0009] Figure 2 This is a structural schematic diagram of the outdoor energy storage cabinet from another direction according to an embodiment of this utility model;

[0010] Figure 3 This is a schematic diagram of the outdoor energy storage cabinet with its door open according to an embodiment of the present invention;

[0011] Figure 4 This is a structural schematic diagram of the second door of the outdoor energy storage cabinet according to an embodiment of the present utility model;

[0012] Figure 5 This is an exploded view of the second door of the outdoor energy storage cabinet according to an embodiment of the present invention;

[0013] Figure 6 This is a schematic diagram of the first sealing structure according to an embodiment of the present invention;

[0014] Figure 7 This is a schematic diagram of the second sealing structure according to an embodiment of the present invention;

[0015] Figure 8 This is an exploded view of the air outlet plate of the outdoor energy storage cabinet of this utility model embodiment being removed from the cabinet body.

[0016] Figure 9 This is a schematic diagram of the air outlet plate of the outdoor energy storage panel according to an embodiment of the present invention.

[0017] Figure label:

[0018] 10. Cabinet; 11. Battery compartment; 12. Electrical compartment; 13. Mounting hole; 20. Door; 21. First door; 22. Second door; 221. Air inlet; 2211. First air inlet; 2212. Second air inlet; 30. Battery cluster; 40. High-voltage box; 50. Fire suppression module; 51. Fire tank; 52. Fire suppression piping; 53. Fire nozzle; 60. Energy management system; 70. Power conversion system; 80. Liquid cooling system; 90. First sealing structure; 91. First sealing edge; 9101. First flange; 9102. First fixed flange; 92. Second sealing edge; 921, second flange; 922, second fixed flange; 100, first filter screen; 200, louver; 300, second sealing structure; 310, third sealing edge; 311, third flange; 312, third fixed flange; 320, fourth sealing edge; 321, fourth flange; 322, fourth fixed flange; 400, second filter screen; 500, third sealing structure; 600, air outlet cover; 700, cooling fan; 800, fourth sealing structure; 900, air outlet plate; 910, air outlet; 911, first air outlet; 912, second air outlet. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0022] This utility model provides an outdoor energy storage cabinet, referenced Figures 1-2As shown, the outdoor energy storage cabinet includes a cabinet body 10, a door 20, a battery cluster 30, a high-voltage box 40, a fire-fighting module 50, an energy management system 60, a power conversion system 70, and a liquid cooling system 80. The cabinet body 10 is provided with an isolated battery compartment 11 and an electrical compartment 12. The battery compartment 11 is located above the electrical compartment 12. The door 20 is closable and fits into the cabinet body 10. The battery cluster 30 is installed in the battery compartment 11. The battery cluster 30 includes multiple battery boxes arranged sequentially along the height direction of the cabinet body 10. The high-voltage box 40 is located in the battery compartment 11 and below the battery cluster 30. The fire-fighting module 50 is located in the electrical compartment 12 and is located on the side of the high-voltage box 40 away from the door 20. The energy management system 60 is electrically connected to the battery cluster 30 and is installed in the door 20. The power conversion system 70 and the liquid cooling system 80 are installed in the electrical compartment 12. The power conversion system 70 is electrically connected to the battery cluster 30. The liquid cooling system 80 delivers liquid cooling medium toward the battery boxes.

[0023] First, it should be noted that the battery box in this article includes a battery pack composed of multiple individual batteries connected in series and / or parallel, a battery management system (BMS), a thermal management system, an electrical connection system (high-voltage / low-voltage connectors, wiring harnesses, etc.), structural components (shell, brackets, etc.), and protective components. These components are placed inside the box and sealed with a cover, forming a complete functional unit capable of directly outputting electrical energy. The box refers to a closed or semi-closed structure made of materials such as metal and plastic. It is the physical carrier of the battery pack, and its design and manufacturing must meet the safety, reliability, and functionality requirements of the battery pack under different usage scenarios. The box provides installation space for the battery pack, BMS, cooling system, electrical connection components, etc., and through reasonable structural design, fixes these components inside the box, ensuring they maintain a relatively stable position during battery pack operation and preventing damage or loosening of connections due to vibration, impact, or other factors. The box generally consists of an upper box and a lower box. The lower box typically has four side plates and a bottom plate. The four side plates can be integrally formed with the bottom plate or manufactured separately and fixedly connected. The enclosure can be cast from materials such as steel plates and aluminum alloys, or lightweight materials such as glass fiber reinforced composite materials and carbon fiber reinforced composite materials.

[0024] The Power Conversion System 70 (PCS) described in this article has the core function of AC-DC conversion. Specifically, during charging, it converts the alternating current (AC) from the power grid into direct current (DC) to charge the battery pack. During discharging, it converts the DC stored in the battery pack back into alternating current (AC) to supply the power grid or local loads (such as appliances in factories or homes).

[0025] The Energy Management System (EMS) 60 discussed in this paper has the core task of formulating and implementing energy dispatch strategies to maximize economic benefits, optimize support for outdoor energy storage units, or ensure the most stable system operation. As the monitoring center for the outdoor energy storage units, the EMS collects real-time data (such as battery SOC, power, voltage, electricity price, and load demand) from all subsystems, including the PCS (Power Conversion System 70) and BMS (Battery Management System), and monitors and adjusts the operating conditions of the outdoor energy storage units based on this data.

[0026] The liquid cooling system 80 described in this article has the core task of precisely controlling the operating temperature of the battery box, ensuring that the battery box is always within its most efficient and safest operating range. The liquid cooling system 80 mainly includes a compressor, condenser, evaporator, water pump, expansion valve, control chip, and sensors. The compressor, condenser, evaporator, and expansion valve form the refrigerant circuit. The evaporator, as a heat exchanger, is the site of heat exchange between the refrigerant and the cooling medium. The water pump provides power for the circulation of the cooling medium within the evaporator and the cold plates in the battery box. Sensors and the control chip control the cooling capacity of the entire liquid cooling system 80, ensuring that the battery box remains within a stable operating temperature range.

[0027] It is understood that in the technical solution of this utility model, the battery compartment 11 and the electrical compartment 12 are isolated in the cabinet 10. The battery compartment 11 contains the battery cluster 30 and the high-voltage box 40. The fire protection module 50 is set on the rear side of the high-voltage box 40. The power conversion system 70 and the liquid cooling system 80 are set in the battery compartment 11. The energy management system 60 is installed on the door 20. After the door 20 is opened, the battery cluster 30, the high-voltage box 40, the power conversion system 70, the liquid cooling system 80 and the energy management system 60 are all exposed within the user's line of sight. The structure is compact, convenient for installation and maintenance, and makes full use of the space on the door 20 and the space in the battery compartment 11 located behind the high-voltage box 40, thereby improving the space utilization rate of the entire cabinet 10 and helping to increase the total energy storage capacity of the outdoor energy storage cabinet.

[0028] refer to Figure 3As shown, the fire protection module 50 includes a fire tank 51, a fire pipeline 52, and multiple fire nozzles 53. The fire tank 51 is installed on the base plate of the battery compartment 11. The fire pipeline 52 has a fire inlet and multiple fire nozzles. The fire inlet is connected to the fire tank 51. The multiple fire nozzles 53 are installed one-to-one with the multiple fire nozzles and are set one-to-one with the multiple battery boxes. It can be understood that in actual operation, if a battery box experiences thermal runaway, the control system can control the opening of the switch valve of the fire tank 51, and the fire-fighting medium will be sprayed from the fire nozzles 53 through the fire pipeline 52 onto the battery box to extinguish the fire. This can prevent the spread of thermal runaway inside the outdoor energy storage box and the resulting serious fire accident. It should be noted that the structure of the fire pipeline 52 and the fire nozzles 53 can be selected from existing technologies according to actual needs. The specific types of the fire pipeline 52 and the multiple fire nozzles 53 are not limited here.

[0029] refer to Figures 2-3 As shown, the door 20 includes a first door 21 and a second door 22, which are independently set. The first door 21 corresponds to the battery compartment 11, and the second door 22 corresponds to the electrical compartment 12. The energy management system 60 is located on the first door 21 and inside the battery compartment 11. The second door 22 has an air inlet 221, and the cabinet 10 has an air outlet 910 on the side opposite to the door 20, which corresponds to the air inlet 221. It can be understood that by splitting the door 20 into the independently set first door 21 and second door 22, one of the first door 21 and the second door 22 can be opened as needed during actual maintenance, exposing one of the electrical compartment 12 and the battery compartment 11 to the user's view for easy maintenance, while the other remains closed to prevent the entry of foreign objects. The energy management system 60 is located on the first door 21 and inside the battery compartment 11. Being located inside the battery compartment 11 allows for easy wiring of the energy management system 60 and prevents it from being bumped or knocked during transportation or handling of the outdoor energy storage cabinet. Since the power conversion system 70 is equipped with a cooling fan 700 and the liquid cooling system 80 is equipped with a liquid cooling fan to achieve forced airflow, an air inlet 221 is provided on the second door 22, and an air outlet 910 is provided on the side of the cabinet 10 away from the door 20. In actual operation, the cooling fan 700 and the liquid cooling fan can be ensured to work stably, so that the power conversion system 70 can dissipate heat stably and the condenser of the liquid cooling system 80 can dissipate heat stably.

[0030] It should be noted that, in order to achieve the anti-theft function, locks can be installed on both the first door 21 and the second door 22. The first door 21 and the second door 22 can be rotated and connected to the cabinet 10 by hinges, or they can be connected by other means, as long as the first door 21 and the second door 22 can be opened and closed relative to the cabinet 10.

[0031] Optional, see reference Figure 3 As shown, the air inlet 221 includes a first air inlet 2211 and a second air inlet 2212, which are isolated from each other. The first air inlet 2211 is positioned directly opposite the power conversion system 70, and the second air inlet 2212 is positioned directly opposite the liquid cooling system 80. The air outlet 910 includes a first air outlet 911 and a second air outlet 912, which are isolated from each other. The first air outlet 911 is connected to the first air inlet 2211, and the second air outlet 912 is connected to the second air inlet 2212. It should be noted that in actual operation, the heat dissipation requirements of the power conversion system 70 are much lower than those of the condenser. This results in the power of the cooling fan 700 of the power conversion system 70 being much lower than the power of the liquid cooling fan of the liquid cooling system 80. If only one air inlet 221 is provided, the cooling fan 700 of the power conversion system 70 will be affected by the high-power liquid cooling fan during actual operation, thereby reducing the heat dissipation effect of the power conversion system 70. In this embodiment, the air inlet 221 is isolated into a first air inlet 2211 and a second air inlet 2212, and the air outlet 910 includes a first air outlet 911 and a second air outlet 912 that are isolated from each other. The isolation means that during the airflow process, the airflow is divided into two streams and enters the electrical compartment 12 from the first air inlet 2211 and the second air inlet 2212 respectively. The airflow in the first air inlet 2211 will not be affected by the second air inlet 2212. In this embodiment, the first air inlet 2211 and the first air outlet 911 form one airflow channel, and the second air inlet 2212 and the second air outlet 912 form another airflow channel. The cooling fan 700 and the liquid cooling fan are distributed in the two airflow channels, avoiding mutual interference during operation, thereby ensuring that the power conversion system 70 can have a better heat dissipation effect.

[0032] Optionally, both the first air inlet 2211 and the second air inlet 2212 are formed into a honeycomb structure. This ensures stable airflow while preventing external pollutants from entering the electrical compartment 12.

[0033] Optionally, both the first air outlet 911 and the second air outlet 912 are formed into a honeycomb structure. This ensures stable airflow while preventing external pollutants from entering the electrical compartment 12.

[0034] Further optional, see reference Figures 4-5As shown, the second door 22 has a first sealing structure 90 surrounding the first air inlet 2211 on its side wall facing the electrical compartment 12. The first sealing structure 90 abuts against the side wall of the power conversion system 70 facing the second door 22. It can be understood that by providing the first sealing structure 90 on the second door 22, isolation between the first air inlet 2211 and the second air inlet 2212 can be ensured, preventing the liquid cooling fan from adversely affecting the heat dissipation fan 700, thereby ensuring that the power conversion system 70 has a better heat dissipation effect.

[0035] Further options are available, see reference. Figure 6 As shown, the first sealing structure 90 includes two first sealing edges 91 and two second sealing edges 92. Each first sealing edge 91 is provided with a first flange 9101, and each of the two second sealing edges 92 is provided with a second flange 921. The first flanges 9101 and the second flanges 921 are spaced apart, and a first filter screen 100 is sandwiched between the first flanges 9101 and the second flanges 921. A louver 200 is provided between the first filter screen 100 and the second door 22. It can be understood that the two first sealing edges 91 and the two second sealing edges 92 can effectively isolate the first air inlet 2211 from the second air inlet 2212, thereby avoiding adverse effects of the liquid cooling fan on the heat dissipation fan 700. The arrangement of the first filter screen 100 and the louver 200 can ensure stable air intake at the first air inlet 2211 and prevent external pollutants from entering the electrical compartment 12, which is beneficial to ensuring the operational reliability of the power conversion system 70.

[0036] The connection between the first sealing edge 91 and the second door body 22 is as follows: the first sealing edge 91 is provided with a first fixing flange 9102, which is fixed to the second door body 22 by screws, pins, or other connecting parts. This ensures the stability of the connection between the first sealing edge 91 and the second door body 22. Of course, the first sealing edge 91 can also be fixed to the second door body 22 by welding or bonding, and is not limited to the above-mentioned limitations.

[0037] The second sealing edge 92 is connected to the second door body 22 as follows: the second sealing edge 92 is provided with a second fixing flange 922, which is fixed to the second door body 22 by screws, pins, or other connecting parts. This ensures the stability of the connection between the first sealing edge 91 and the second door body 22. Of course, the second sealing edge 92 can also be fixed to the second door body 22 by welding or bonding, and is not limited to the above limitations.

[0038] Further optional, see reference Figures 2-5As shown, a second sealing structure 300 is provided on the side wall of the second door 22 facing the electrical compartment 12, surrounding the second air inlet 2212. The second sealing structure 300 abuts against the side wall of the liquid cooling system 80 facing the second door 22. It can be understood that by providing the second sealing structure 300 on the second door 22, isolation can be ensured between the first air inlet 2211 and the second air inlet 2212, avoiding adverse effects of the liquid cooling fan on the heat dissipation fan 700, thereby ensuring that the power conversion system 70 can have a better heat dissipation effect.

[0039] Further options are available, see reference. Figure 7 As shown, the second sealing structure 300 includes two third sealing edges 310 and two fourth sealing edges 320. Each third sealing edge 310 has a third flange 311, and each of the two fourth sealing edges 320 has a fourth flange 321. The third flanges 311 and fourth flanges 321 are spaced apart, and a second filter screen 400 is sandwiched between the third flanges 311 and fourth flanges 321. It can be understood that the two third sealing edges 310 and the two fourth sealing edges 320 can effectively isolate the second air inlet 2212 from the first air inlet 2211, thereby preventing the liquid-cooled fan from adversely affecting the cooling fan 700. The second filter screen 400 ensures stable airflow into the first air inlet 2211 while blocking external contaminants from entering the electrical compartment 12, which helps ensure the operational reliability of the power conversion system 70.

[0040] The third sealing edge 310 is connected to the second door body 22 by having a third fixing flange 312 on the third sealing edge 310. The third fixing flange 312 is fixed to the second door body 22 by screws, pins, or other connecting parts, thereby ensuring the stability of the connection between the third sealing edge 310 and the second door body 22. Of course, the third sealing edge 310 can also be fixed to the second door body 22 by welding or bonding, and is not limited to the above limitations.

[0041] The fourth sealing edge 320 is connected to the second door body 22 as follows: the fourth sealing edge 320 is provided with a fourth fixing flange 322, which is fixed to the second door body 22 by screws, pins, or other connecting parts. This ensures the stability of the connection between the third sealing edge 310 and the second door body 22. Of course, the fourth sealing edge 320 can also be fixed to the second door body 22 by welding or bonding, and is not limited to the above limitations.

[0042] Further optional, see reference Figure 8As shown, a mounting hole 13 is provided on the side of the cabinet 10 away from the door 20. An air outlet plate 900 is installed in the mounting hole 13, and both the first air outlet 911 and the second air outlet 912 are located on the air outlet plate 900. It is understandable that since the first air outlet 911 is equipped with a third sealing structure 500, an air outlet cover 600, and a cooling fan 700, and the second air outlet 912 is equipped with a fourth sealing structure 800, directly installing the first air outlet 911 and the second air outlet 912 on the cabinet 10 would be inconvenient for the installation of the third sealing structure 500, the air outlet cover 600, the cooling fan 700, and the fourth sealing structure 800, and would also be inconvenient for maintenance. In this embodiment, the mounting hole 13 is carved out in the cabinet 10, and the first air outlet 911 and the second air outlet 912 are placed on the air outlet plate 900, with the air outlet plate 900 inside the mounting hole 13, which facilitates both installation and maintenance. The connection between the air outlet 910 and the cabinet 10 can be a snap-fit ​​connection or a connection using screws or other connectors, depending on the actual needs.

[0043] Further optional, see reference Figure 9 As shown, the cabinet 10 is provided with a third sealing structure 500 surrounding the first air outlet 911. An air outlet shroud 600 is connected to the third sealing structure 500. The cross-sectional area of ​​the air outlet shroud 600 gradually increases in the direction away from the power conversion system 70. The larger end of the air outlet shroud 600 is connected to the third sealing structure 500, and cooling fans 700 are provided at both ends of the air outlet shroud 600. It should be noted that the third sealing structure 500 has the same structure as the first sealing structure 90, and will not be described in detail here. The air outlet shroud 600 is a conical structure on the third sealing structure 500. This structure is beneficial for increasing airflow speed. When the cooling fans 700 are working, the airflow can pass through the electrical compartment 12 relatively quickly, which is beneficial for improving the heat dissipation effect of the power conversion system 70. In addition, by setting a third sealing structure 500 on the second door 22, it is possible to ensure that the first air outlet 911 and the second air outlet 912 are isolated, so as to avoid the liquid cooling fan from having an adverse effect on the heat dissipation fan 700, thereby ensuring that the power conversion system 70 can have a better heat dissipation effect.

[0044] Further optional, see reference Figure 9 As shown, the cabinet 10 is provided with a fourth sealing structure 800 surrounding the second air outlet 912. It should be noted that the fourth sealing structure 800 has the same structure as the second sealing structure 300, and will not be described in detail here. By providing the fourth sealing structure 800 on the second door 22, the second air outlet 912 and the first air outlet 911 can be isolated, avoiding adverse effects of the liquid cooling fan on the heat dissipation fan 700, thereby ensuring that the power conversion system 70 can have a better heat dissipation effect.

[0045] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An outdoor energy storage cabinet, characterized in that, include: The cabinet is equipped with a battery compartment and an electrical compartment that are separated from each other; A door that can be opened and closed and fits into the cabinet; A battery cluster, which is installed in the battery compartment, and the battery cluster includes a plurality of battery boxes arranged sequentially along the height direction of the cabinet; A high-voltage box is located inside the battery compartment and below the battery cluster; A fire protection module is installed inside the electrical compartment and located on the side of the high-voltage box away from the door. An energy management system, which is electrically connected to the battery cluster and installed on the door; A power conversion system and a liquid cooling system are installed in the electrical compartment. The power conversion system is electrically connected to the battery cluster, and the liquid cooling system delivers a liquid cooling medium toward the battery box.

2. The outdoor energy storage cabinet according to claim 1, characterized in that, The door includes a first door and a second door that are set independently. The first door is set in relation to the battery compartment, and the second door is set in relation to the electrical compartment. The energy management system is set on the first door and located inside the battery compartment. The second door is provided with an air inlet, and the cabinet is provided with an air outlet on the side opposite to the door, which is set in relation to the air inlet.

3. The outdoor energy storage cabinet according to claim 2, characterized in that, The air inlet includes a first air inlet and a second air inlet that are isolated from each other. The first air inlet is positioned directly opposite the power conversion system, and the second air inlet is positioned directly opposite the liquid cooling system. The air outlet includes a first air outlet and a second air outlet that are isolated from each other. The first air outlet is connected to the first air inlet, and the second air outlet is connected to the second air inlet.

4. The outdoor energy storage cabinet according to claim 3, characterized in that, The second door body has a first sealing structure on the side wall facing the electrical compartment, which surrounds the first air inlet. The first sealing structure abuts against the side wall of the power conversion system facing the second door body.

5. The outdoor energy storage cabinet according to claim 4, characterized in that, The first sealing structure includes two first sealing edges and two second sealing edges. Each first sealing edge is provided with a first flange, and each of the two second sealing edges is provided with a second flange. The first flange and the second flange are spaced apart, and a first filter screen is sandwiched between the first flange and the second flange. A louver is provided between the first filter screen and the second door body.

6. The outdoor energy storage cabinet according to claim 3, characterized in that, The second door body has a second sealing structure on the side wall facing the electrical compartment, which surrounds the second air inlet. The second sealing structure abuts against the side wall of the liquid cooling system facing the second door body.

7. The outdoor energy storage cabinet according to claim 6, characterized in that, The second sealing structure includes two third sealing edges and two fourth sealing edges. Each of the third sealing edges is provided with a third flange, and each of the two fourth sealing edges is provided with a fourth flange. The third flanges and the fourth flanges are spaced apart, and a second filter screen is sandwiched between the third flanges and the fourth flanges.

8. The outdoor energy storage cabinet according to claim 3, characterized in that, The cabinet is provided with a third sealing structure surrounding the first air outlet. An air outlet hood is connected to the third sealing structure. The cross-sectional area of ​​the air outlet hood gradually increases in the direction away from the power conversion system. The large end of the air outlet hood is connected to the third sealing structure. Cooling fans are provided at both ends of the air outlet hood.

9. The outdoor energy storage cabinet according to claim 3, characterized in that, The cabinet body has a mounting hole on the side away from the door body, and an air outlet plate is installed in the mounting hole. The first air outlet and the second air outlet are both located on the air outlet plate.

10. The outdoor energy storage cabinet according to claim 1, characterized in that, The fire protection module includes: A fire extinguisher tank is installed on the bottom plate of the battery compartment; The fire-fighting pipeline has a fire inlet and multiple fire nozzles, and the fire inlet is connected to the fire tank. Multiple fire nozzles are installed one-to-one with multiple fire outlets and are also configured one-to-one with multiple battery boxes.

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