Energy storage electric cabinet and energy storage equipment

Abstract

The utility model provides an energy storage electric cabinet and energy storage equipment. The energy storage electric cabinet comprises a cabinet body and an energy storage system. A battery cavity and an electrical cavity which are separated left and right are formed in the cabinet body. The energy storage system comprises a battery system arranged in the battery cavity and a control system in the electrical cavity. The cabinet body is provided with an air inlet shutter and an air outlet shutter which are respectively communicated with the electrical cavity, the inner side of the air outlet shutter is provided with an air blowing part, the outer side of the air outlet shutter is provided with a flow guide cover, the flow guide cover is internally provided with a plurality of flow guide channels which are arranged at intervals up and down, and the flow guide channels are used for guiding airflow flowing out of the air outlet shutter to flow out in the horizontal direction; or the air flows out in the direction away from the air inlet louver. According to the energy storage electric cabinet provided by the utility model, the return air short circuit problem of the air inlet and the air outlet can be avoided, and the electrical parts and the battery pack in the cabinet body can be in a constant temperature environment, so that the use performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage, and in particular to an energy storage cabinet. In addition, the utility model also relates to an energy storage device provided with the energy storage cabinet. Background Art

[0002] Battery energy storage systems use large energy storage batteries to store and release electricity. They are flexible in integration and installation and have a wide range of applications. They can supplement and enrich the needs of power systems and consumers in different ways. Energy storage systems are usually composed of multiple energy storage battery clusters, which are finally put into use in the form of energy storage cabinets or energy storage containers.

[0003] A general battery energy storage container is to assemble battery cells in series into modules, and then assemble multiple modules into battery packs, and then install multiple battery packs on a fixed stand to form a modular energy storage battery cluster. Among them, for the integrated outdoor cabinet system suitable for industrial and commercial energy storage, the main heat sources inside the cabinet are two parts, the battery system and the energy storage inverter. Commonly used thermal management methods are air cooling and liquid cooling. Air cooling mainly uses air conditioning or fans to achieve thermal management, and is widely used due to its low cost advantage.

[0004] In the air-cooling thermal management solution, when the air inlet and outlet are arranged on the same side, the airflow from the outlet will be sucked back into the cabinet by the air inlet due to the close distance between the two, which greatly reduces the working effect of the entire thermal management system. This phenomenon is called return air short circuit. When return air short circuit occurs, it can lead to reduced thermal management efficiency and increased power consumption of the system at the least, or even failure of temperature control, and the system cannot work normally, affecting the use of the product.

[0005] As for the above-mentioned problem, the existing integrated outdoor cabinet system generally sets the air inlet and the air outlet on different sides of the cabinet body, such as the front panel for air inlet and the rear panel for air outlet. In addition, since a certain installation distance is generally required between the air outlet and the air inlet, the entire cabinet body cannot be directly installed back to back and shoulder to shoulder at the same time, which increases the product's footprint. Utility Model Content

[0006] In view of this, the utility model aims to provide an energy storage cabinet, which can reduce the system's footprint while avoiding return air short circuit.

[0007] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0008] An energy storage electric cabinet comprises a cabinet body and an energy storage system;

[0009] The cabinet is formed with a battery cavity and an electrical cavity which are separated and arranged on the left and right sides;

[0010] The energy storage system includes a battery system disposed in the battery cavity, and a control system in the electrical cavity;

[0011] The cabinet body is provided with an air inlet louver and an air outlet louver respectively connected to the electrical cavity, the inner side of the air outlet louver is provided with a blowing portion, the outer side of the air outlet louver is provided with a guide cover, the guide cover is provided with a plurality of guide channels arranged at intervals up and down, and the guide channels are used to guide the airflow flowing out of the air outlet louver to flow out in a horizontal direction or in a direction away from the air inlet louver.

[0012] Furthermore, the deflector includes a frame with a hollow interior, and a plurality of deflector blades arranged in the frame at intervals along the height direction of the frame, and the deflector channel is formed between two adjacent deflector blades and the frame.

[0013] Furthermore, each of the guide plates is arranged horizontally, and the guide channel can guide the airflow to flow out in a horizontal direction; or,

[0014] Each of the guide plates is arranged obliquely in a direction away from the air inlet louver, and the guide channel can guide the airflow to flow out in a direction away from the air inlet louver.

[0015] Furthermore, a decorative plate is provided on the outer side of the air deflector, and a plurality of hollow holes are provided on the decorative plate; and / or,

[0016] The air outlet louver is arranged to be in communication with the top of the electrical cavity, and the air inlet louver is in communication with the bottom of the electrical cavity.

[0017] Furthermore, the cabinet is provided with an air conditioner for blowing cold air / hot air into the battery cavity; and / or,

[0018] At least one side of the cabinet is provided with a heat insulation layer.

[0019] Furthermore, the cabinet is provided with a fire controller, a fire detector located in the battery cavity and connected to the fire controller, and a fire extinguisher electrically connected to the fire controller;

[0020] The fire extinguisher controller is capable of triggering the fire extinguisher to spray fire extinguishing agent when the fire detector detects a fire; and / or,

[0021] A hanging part is arranged on the top of the cabinet.

[0022] Furthermore, the fire detector includes at least one of a temperature sensor, a smoke detector and a combustible gas detector.

[0023] Furthermore, the cabinet is provided with a status indicator light connected to the control system, the status indicator light is used to display different states of the energy storage system, and the status indicator light has different colors in different states; and / or,

[0024] The cabinet is provided with an emergency stop switch connected to the control system, and the emergency stop switch can disconnect the battery system from external electrical equipment.

[0025] Furthermore, the cabinet includes a cabinet body with a cavity formed therein, and a cabinet door pivotally disposed on the cabinet body for opening and closing the cabinet body opening, and the battery cavity and the electrical cavity are formed between the cabinet body and the cabinet door;

[0026] The air inlet louver and the air outlet louver are both arranged on the cabinet door.

[0027] Furthermore, it comprises at least two of the energy storage cabinets arranged side by side, and the air inlet louver and the air outlet louver on each of the energy storage cabinets are located on the same side of the corresponding energy storage cabinet.

[0028] Compared with the prior art, the utility model has the following advantages:

[0029] The energy storage electric cabinet described in the utility model avoids temperature interference between the battery pack and various electrical components by arranging a battery cavity and an electrical cavity separated on the left and right inside the cabinet, and supplies air through the blower part, and then flows to the air outlet louver through the air guide cover with a guide channel. The guide channel guides the airflow in a horizontal direction or away from the air inlet louver, thereby avoiding the problem of return air short circuit between the air inlet and the air outlet, and can keep the electrical components and battery pack in the cabinet in a constant temperature environment, thereby ensuring the performance.

[0030] In addition, by providing the air guide cover with a plurality of guide blades spaced apart in the height direction of the frame, the guide blades are used to form a plurality of guide channels between the frame and the air guide cover, and the structure is simple and easy to implement. Furthermore, by arranging the guide blades horizontally or tilting in a direction away from the air inlet louver, the airflow of the air outlet louver is prevented from being sucked back into the electrical cabinet by the air inlet louver, thereby reducing the thermal management efficiency.

[0031] In addition, by providing a decorative plate on the outside of the air deflector, and providing a hollow hole on the decorative plate, and / or, the air outlet louver is provided to be connected to the top of the electrical cavity, and the air inlet louver is connected to the bottom of the electrical cavity, it is not only convenient to form a circulating airflow in the electrical cavity to facilitate heat dissipation, but also can increase the aesthetics of the air outlet louver.

[0032] Another object of the present utility model is to provide an energy storage device, which includes at least two energy storage cabinets arranged side by side, and the air inlet louver and the air outlet louver on each of the energy storage cabinets are located on the same side of the corresponding energy storage cabinet.

[0033] The energy storage device of the utility model can be installed by directly splicing side by side or back to back by arranging the air inlet louver and the air outlet louver on the same side of the energy storage cabinet, thereby greatly reducing the footprint of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0035] Figure 1 This is a front view schematic diagram of the appearance of the energy storage cabinet according to an embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the inner side of a cabinet door according to an embodiment of the utility model;

[0037] Figure 3 This is a schematic diagram of the internal layout of the energy storage cabinet according to an embodiment of the utility model;

[0038] Figure 4 It is a schematic diagram of the airflow of the air guide cover according to the embodiment of the utility model;

[0039] Figure 5 It is a three-dimensional exploded schematic diagram of the air deflector according to the embodiment of the utility model;

[0040] Figure 6 It is a front view schematic diagram of the decorative plate according to the embodiment of the utility model;

[0041] Figure 7 This is a schematic diagram of the working principle of the energy storage cabinet described in an embodiment of the utility model;

[0042] Figure 8 A schematic diagram of the working principle of the thermal management system of the energy storage cabinet according to an embodiment of the utility model;

[0043] Fig. 9 The present invention is a schematic diagram of the working principle of the fire protection system of the energy storage cabinet described in the embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 1. Cabinet; 2. Cabinet door; 3. Air inlet shutter; 4. Air outlet shutter; 5. Blowing unit; 6. Air deflector; 7. Door lock; 8. Fire controller; 9. Fire detector; 10. Fire extinguisher; 11. Lifting unit; 12. Status indicator light; 13. Emergency stop switch; 14. Energy storage inverter; 15. Electrical installation board; 16. Battery pack; 17. High-voltage box; 18. Uninterruptible power supply; 19. Air conditioner return air outlet; 20. Air conditioner outlet; 21. Guard plate;

[0046] 101. battery cavity; 102. electrical cavity;

[0047] 601, guide channel; 602, frame; 603, guide plate; 604, decorative plate;

[0048] 6041, hollow hole. DETAILED DESCRIPTION

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0050] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0052] The present embodiment relates to an energy storage electric cabinet, which includes a cabinet body 1 and an energy storage system. A battery cavity 101 and an electrical cavity 102 are formed in the cabinet body 1, which are separated from each other on the left and right. The energy storage system includes a battery system arranged in the battery cavity 101, and a control system in the electrical cavity 102. The cabinet body 1 is provided with an air inlet louver 3 and an air outlet louver 4 respectively connected to the electrical cavity 102, and an air blowing part 5 is provided on the inner side of the air outlet louver 4, and a guide cover 6 is provided on the outer side of the air outlet louver 4. A plurality of guide channels 601 arranged at intervals in the upper and lower directions are provided in the guide cover 6, and the guide channels 601 are used to guide the airflow flowing out of the air outlet louver 4 to flow out in a horizontal direction, or to flow out in a direction away from the air inlet louver 3.

[0053] The energy storage electric cabinet of the present embodiment avoids temperature interference between the battery pack and various electrical components by arranging a battery cavity 101 and an electrical cavity 102 separated on the left and right inside the cabinet, and supplies air through the blower 5, and then flows to the air outlet louver 4 through the air guide cover 6 with the guide channel 601. The guide channel 601 guides the airflow to the horizontal direction or away from the air inlet louver 3, thereby avoiding the problem of return air short circuit between the air inlet and the air outlet, and can keep the electrical components and battery pack 16 in the cabinet 1 in a constant temperature environment, thereby ensuring the performance.

[0054] Based on the above overall introduction, an exemplary structure of the energy storage cabinet of this embodiment is as follows: Figures 1 to 3 As shown, the energy storage cabinet of this embodiment adopts an integrated energy storage outdoor cabinet system. Preferably, the cabinet body 1 includes a cabinet body with a cavity formed inside, and a cabinet door 2 pivotally arranged on the cabinet body for opening and closing the cabinet body opening, and a battery cavity 101 and an electrical cavity 102 are formed between the cabinet body and the cabinet door 2.

[0055] like Figure 1 As shown, a cabinet body 1 has a cabinet door 2 on one side, and adopts a single-side door opening method. The cabinet body is a rectangular storage space opened toward the cabinet door 2, and the storage space is divided by a partition to form a battery cavity 101 and an electrical cavity 102.

[0056] In order to have the functions of heat insulation and fire prevention, a heat insulation layer is provided on the inner side of the cabinet door 2. When the battery system is in normal working condition, it plays a role of heat insulation and heat preservation. The heat insulation layer can prevent the external environment temperature from having a greater impact on the temperature of the battery system, create a relatively insulated cabin condition, and reduce the power consumption of the thermal management system. In the event of a fire, it can effectively isolate the transfer of heat, prevent the spread of the fire, and buy more time for escape.

[0057] Preferably, a hanging part 11 is provided on the top of the cabinet 1. Figure 1 to Figure 2 As shown, the hoisting part 11 of this embodiment is a hoisting ring, which is arranged at the four corners of the top of the cabinet 1 and is threadedly connected to the top of the cabinet 1 for use when the cabinet 1 is hoisted and transported. In addition, the cabinet 1 is provided with an air conditioner for blowing cold air or hot air into the battery cavity 101. Specifically, as Figure 1 and Figure 2 As shown, the air conditioner of this embodiment is mounted on the cabinet door 2, wherein the air outlet 20 and the air return air outlet 19 of the air conditioner are both arranged on the front side of the cabinet door 2, for thermal management of the battery cavity 101, and the battery cavity 101 is connected to the air outlet and the air inlet of the air conditioner.

[0058] Still Figure 1 to Figure 2As shown, a wall-mounted air conditioner is installed on the cabinet door 2, the air inlet of the air conditioner is arranged on the front of the cabinet door 2, that is, the outside of the cabinet body 1, and the air outlet 20 of the air conditioner is arranged on the inside of the cabinet door 2, which is used to control the temperature of the battery system in the cabinet body 1. Figure 1 As shown in the state, the air inlet louver 3 and the air outlet louver 4 are both arranged on the cabinet door 2, the air outlet louver 4 is provided on the upper right part of the cabinet door 2, the air inlet louver 3 is provided directly below the air outlet louver 4 and the air outlet louver 4 is arranged to be connected with the top of the electrical cavity 102, and the air inlet louver 3 is connected with the bottom of the electrical cavity 102.

[0059] In addition, if Figure 2 As shown, the cabinet door 2 of this embodiment is opened and closed by the connecting rod door lock 7 of the prior art. The cabinet door 2 is provided with a lock seat, and the lock can be opened by a key. The cabinet body 1 of this embodiment is provided with a guard plate 21 and a forklift opening for accommodating forks of a forklift at the bottom. The energy storage cabinet of this embodiment of the decorative plate 604 can be moved by a forklift to meet the location requirements of the energy storage cabinet. By setting the guard plate 21 on the front of the cabinet door 2, it can play a role in aesthetics.

[0060] based on Figure 3 As shown in the state, the battery cavity 101 of this embodiment is located on the left side of the accommodating cavity, and the electrical cavity 102 is located on the right side of the accommodating cavity, and they are separated by a partition. The partition of this embodiment is extended along the height direction of the cabinet 1, and the battery cavity 101 and the electrical cavity 102 each form a sealed space. The battery cavity 101 and the electrical cavity 102 can respectively meet the IP55 protection level requirements. The partition has a certain heat insulation ability and structural strength. When the battery pack 16 and the power harness and communication harness of the electrical parts pass through the partition, corresponding terminals and other connectors should be used to ensure the sealing and protection level requirements.

[0061] Still Figure 3 As shown, nine air-cooled battery packs 16 are arranged in sequence along the height direction in the electrical cavity 102. The battery pack 16 integrates the necessary interfaces and components used in the prior art, which mainly include a battery management unit, a communication structure, a power harness interface, and a manual maintenance switch. A high-voltage box 17 is provided below the battery pack 16, and an uninterruptible power supply 18 is provided below the high-voltage box 17, which can provide power protection for the system when the system power supply fails, giving the system sufficient reaction and processing time to avoid accidents.

[0062] In addition, a travel switch is provided on the top of the electrical cavity 102, which sends a signal to the energy management system to alarm when the cabinet door 2 is opened, thereby reminding the operator to pay attention to electrical safety. Figure 3As shown, an energy storage inverter 14 (PCS) is provided below the blasting section 5, i.e., in the middle of the electrical cavity 102. The energy storage inverter 14 controls the charging and discharging of the battery system, performs AC / DC conversion, and can directly supply power to the AC load when there is no power grid. An electrical installation board 15 is provided below the energy storage inverter 14, and all power distribution components of the energy storage cabinet, including circuit breakers, switches, I / O modules, etc., are installed on the electrical installation board 15.

[0063] The high voltage box 17 of this embodiment integrates the battery management system and circuit protection related devices, such as circuit breakers, relays, etc. The high voltage box 17 is connected to the battery pack 16 and the energy management system described below through a communication harness, and is connected to the battery pack 16 through a power harness.

[0064] As a preferred implementation, the air guide cover 6 of this embodiment includes an internally hollow frame 602, and a plurality of air guide plates 603 spaced apart in the frame 602 along the height direction of the frame 602, and an air guide channel 601 is formed between two adjacent air guide plates 603 and the frame 602.

[0065] like Figure 4 and Figure 5 As shown, the frame 602 includes side panels arranged on both sides of the guide plate 603, the guide plate 603 is in the horizontal direction and connects the outer side and the inner side of the cabinet 1, and the guide plate 603 is arranged in multiple intervals from top to bottom, so that multiple guide channels 601 are formed between the inner side and the outer side of the cabinet 1, and the air is blown through the blasting part 5 inside the air outlet louver 4, and the gas in the cabinet 1 flows out through the guide channel 601, which can achieve a better heat dissipation or cooling effect. The blasting part 5 of this embodiment adopts an electrical compartment heat dissipation fan.

[0066] Furthermore, each guide plate 603 is arranged horizontally, and the guide channel 601 can guide the airflow to flow out in the horizontal direction. Figure 4 and Figure 5 As shown, the guide plate 603 is horizontally arranged in the frame 602 , and the airflow flowing through the guide channel 601 flows outward along the arrangement direction of the guide plate 603 .

[0067] As a feasible implementation, each guide plate 603 is arranged in an inclined direction away from the air inlet louver 3, and the guide channel 601 can guide the airflow to flow out in a direction away from the air inlet louver 3. Figure 4 As shown, an upwardly bent arc end is provided at the end of the guide plate 603 close to the outside. By setting the arc end, the outflowing air can flow to the outside and upward, and the air flow is away from the direction of the air inlet louver 3, avoiding the outlet air flow from the air outlet from being sucked into the air inlet.

[0068] In addition, the entire guide plate 603 can be tilted with the side plate, and the guide plate 603 can be tilted upward, and the guide plate 603 can be tilted in a direction away from the air inlet louver 3 to prevent the airflow of the air outlet louver 4 from being sucked back into the electrical cabinet by the air inlet louver 3, thereby reducing the thermal management efficiency. The guide plate 603 arranged in this way can reduce the wind resistance and noise of the guide channel 601 while adjusting the airflow direction, and the structure design is simple and low in cost.

[0069] In order to facilitate smooth evacuation of airflow, a decorative plate 604 is provided on the outer side of the air guide cover 6, and a plurality of hollow holes 6041 are provided on the decorative plate 604. Figures 4 to 6 As shown, a plurality of hollow holes 6041 are arranged at intervals on the decorative plate 604, and the airflow inside the cabinet 1 is evacuated through the hollow holes 6041, thereby improving the ventilation rate of the air guide cover 6 and reducing wind resistance. In addition, in order to increase the aesthetics, the hollow holes 6041 of this embodiment are hexagonal, and can also be quadrilateral, triangular, circular or other polygonal structures.

[0070] In addition, the cabinet 1 is provided with a fire controller 8, a fire detector 9 located in the battery cavity 101, and connected to the fire controller 8, and a fire extinguisher 10 electrically connected to the fire controller 8. The controller of the fire extinguisher 10 can trigger the fire extinguisher 10 to spray the fire extinguishing agent when the fire detector 9 detects a fire. Figure 2 As shown, specifically, the fire controller 8, the fire detector 9 and the fire extinguisher 10 are all arranged on the inner side of the cabinet door 2, wherein the fire extinguisher 10 is provided with a fire extinguishing agent.

[0071] In this embodiment, the controllers of the fire controller 8, fire detector 9, explosion-proof exhaust fan, and fire extinguisher 10 are all connected to the energy management system described below, and the data transmitted by the fire detector 9 is monitored. If the corresponding fire extinguishing conditions are met, a signal is transmitted to the energy management system, and the fire extinguishing agent is started to extinguish the fire.

[0072] Furthermore, the fire detector 9 includes at least one of a temperature sensor, a smoke detector, and a combustible gas detector. The fire detector 9 in this embodiment is connected to the fire controller 8, and stores fire extinguishing agents inside, and is controlled by the fire controller 8. When the fire controller 8 determines that a fire has occurred, it will start the eruption, thereby extinguishing the fire and preventing further disasters. The fire extinguishing agent uses the energy storage system fire extinguishing agent recommended by the state, such as hot aerosol, perfluorohexanone and other fire extinguishing agents, and its storage capacity is determined by the total energy of the battery system and the volume of the battery compartment.

[0073] Preferably, the cabinet 1 is provided with a status indicator light 12 connected to the control system, and the status indicator light 12 is used to display different states of the energy storage system, and the status indicator light 12 has different colors in different states. In addition, the cabinet 1 is provided with an emergency stop switch 13 connected to the control system, and the emergency stop switch 13 can disconnect the battery system from the external electrical equipment.

[0074] As Figure 1 to Figure 2 As shown, the cabinet door 2 is also provided with a status indicator light 12 on the outside, including an operating status indicator light 12, a fault status indicator light 12 and an alarm indicator light, which are used to display the working status in different states, facilitating operation and maintenance management. In this embodiment, the cabinet door 2 is also provided with an emergency stop button on the front. In an emergency, by pressing the emergency stop button, the entire system can be shut down with one click, which plays a safety protection function.

[0075] The control system of this embodiment is an energy management system ems disposed in the electrical cavity 102, which is used to monitor, control and optimize energy flow and energy consumption in the energy system. The specific structure of the energy management system can be implemented according to existing technical means, which will not be repeated here.

[0076] As mentioned above, Figures 7 to 9 As shown, the energy storage cabinet of this embodiment mainly includes four systems, namely, the battery system, the battery management system, the thermal management system and the fire protection system. The battery system is mainly composed of multiple battery packs 16, which are connected to the high-voltage box 17 and the energy storage inverter through the power harness. It is the core part of the whole system and is responsible for the storage of electricity.

[0077] The battery management system is mainly integrated inside the high-voltage box 17, and is connected to the battery management unit and energy management system integrated inside the battery pack 16 through a communication harness. It is responsible for real-time monitoring of the operating status of the battery system and plays a protective role.

[0078] The thermal management system mainly includes air conditioning, cooling fans and heaters, which are responsible for the thermal management of the entire system and ensure that the battery system operates within the appropriate temperature range. The fire protection system includes the above-mentioned detectors, controllers and fire extinguishing agents, etc., which are responsible for fire detection and fire extinguishing of the entire system.

[0079] The present embodiment also relates to an energy storage device, which includes at least two energy storage cabinets arranged side by side, and the air inlet louver 3 and the air outlet louver 4 on each energy storage cabinet are located on the same side of the corresponding energy storage cabinet.

[0080] Since the air inlet louvers 3 and the air outlet louvers 4 of the energy storage cabinet of this embodiment are both located on the front of the cabinet door 2, the energy storage cabinets arranged side by side can be directly spliced ​​and installed shoulder to shoulder or back to back, which greatly reduces the system's footprint.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy storage cabinet, characterized in that: Including cabinet and energy storage system; The cabinet is formed with a battery cavity and an electrical cavity which are separated and arranged on the left and right sides; The energy storage system includes a battery system disposed in the battery cavity, and a control system in the electrical cavity; The cabinet body is provided with an air inlet louver and an air outlet louver respectively connected to the electrical cavity, the inner side of the air outlet louver is provided with a blowing portion, the outer side of the air outlet louver is provided with a guide cover, the guide cover is provided with a plurality of guide channels arranged at intervals up and down, and the guide channels are used to guide the airflow flowing out of the air outlet louver to flow out in a horizontal direction or in a direction away from the air inlet louver.

2. The energy storage cabinet according to claim 1, characterized in that: The deflector cover comprises a frame with a hollow interior, and a plurality of deflector plates arranged in the frame at intervals along a height direction of the frame, and the deflector channel is formed between two adjacent deflector plates and the frame.

3. The energy storage cabinet according to claim 2, characterized in that: Each of the guide plates is arranged horizontally, and the guide channel can guide the airflow to flow out in a horizontal direction; or, Each of the guide plates is arranged obliquely in a direction away from the air inlet louver, and the guide channel can guide the airflow to flow out in a direction away from the air inlet louver.

4. The energy storage cabinet according to claim 1, characterized in that: A decorative plate is provided on the outer side of the air deflector, and a plurality of hollow holes are provided on the decorative plate; and / or, The air outlet louver is arranged to be in communication with the top of the electrical cavity, and the air inlet louver is in communication with the bottom of the electrical cavity.

5. The energy storage cabinet according to claim 1, characterized in that: The cabinet is provided with an air conditioner for blowing cold air / hot air into the battery cavity; and / or, At least one side of the cabinet is provided with a heat insulation layer.

6. The energy storage cabinet according to claim 1, characterized in that: The cabinet is provided with a fire controller, a fire detector located in the battery cavity and connected to the fire controller, and a fire extinguisher electrically connected to the fire controller; The controller of the fire extinguisher is capable of triggering the fire extinguisher to spray fire extinguishing agent when the fire detector detects a fire; and / or, A hanging part is arranged on the top of the cabinet.

7. The energy storage cabinet according to claim 6, characterized in that: The fire detector includes at least one of a temperature sensor, a smoke detector and a combustible gas detector.

8. The energy storage cabinet according to claim 1, characterized in that: The cabinet is provided with a status indicator light connected to the control system, the status indicator light is used to display different states of the energy storage system, and the status indicator light has different colors in different states; and / or, The cabinet is provided with an emergency stop switch connected to the control system, and the emergency stop switch can disconnect the battery system from external electrical equipment.

9. The energy storage cabinet according to any one of claims 1 to 8, characterized in that: The cabinet body comprises a cabinet body with a cavity formed therein, and a cabinet door pivotally arranged on the cabinet body for opening and closing the cabinet body opening, wherein the battery cavity and the electrical cavity are formed between the cabinet body and the cabinet door; The air inlet louver and the air outlet louver are both arranged on the cabinet door.

10. An energy storage device, characterized in that: It comprises at least two of the energy storage cabinets arranged side by side, each of the energy storage cabinets is the energy storage cabinet according to any one of claims 1 to 9, and the air inlet louver and the air outlet louver on each of the energy storage cabinets are located on the same side of the corresponding energy storage cabinet.

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